HomeMy WebLinkAboutAPA2736ALASKA DEPARTMENT OF FISH AND GAME
SUSITNA HYDRO AQUATIC STUDIES REPORT SERIES
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ALASKA DEPARTMENT OF FISH AND GAME
SUSITNA HYDRO AQUA TIC STUDlES
TASK 14 SUPPORT TECHNICAL REPORT
HYDROLOGICAL INVESTIGATIONS AT SELECTED
LOWER SUSITNA RIVER STUDY SITES....
by:Timothy Quane.Patrick Morrow.and Isaac Queral
Aquatic Habitat and Instream Flow Project
Prepared for:
ALASKA POWER AUTHORITY
334 W.FIFTH AVE.
ANCHORAGE.ALASKA
ARLIS
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TABLE 0F CONTENTS
TABLE OF CONTENTS .
LIST OF FIGURES...............vii
LIST OF TABLES..................................................xi i i
LIST OF ATTACHMENT FIGURES......................................xiv
LIST OF ATTACHMENT TABLES.......................................xxi i i
1.0 OBJECTIVES OF STUDy........................................1
2.0 ~,1ETHODS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Site Selection...........................................2
2.2 Field Data Collection....................................2
2.2.1 Stage.......•.......•.2
2.2.2 Streamflow............................................5
2.2.3 Channel Geometry.....................................5
2.2.3.1 Thalweg Profile..................................5
2.2.3.2 Cross Section Profile............................6
2.3 Data Analysis .7
2.3.1 Stage and Streamflow.................................7
2.3.2 Initial Breaching and Controlling Discharges.........8
2.3..2.1 Initial Breaching Discharge......................8
2.3.?2 Contr~olling Breaching Discharge..9
2.3.3 Backwater............................................10
2.3.4 Channel Geometry.....................................10
3.0 RESULTS....................................................13
3.1 Hooligan Side Channel (RM 35.2)..........................13
2.3.4.1 Thalweg Profile .
2.3.4.2 Cross Section Profile .•..........................
11
11
Site Description.....................................13
Stage/Discharge Relationship.........................16
Mainstem Breaching and Controlling Discharges........16
Channel Geometry.....................................24
ARLIS
L'b AlaskaR
1 ra.ty &1;''[·.eSOUfces
A -'h·!o.nnatiol]I;'li~I(,oragj'~l\1,:.:>erv1ces
"-~...,,-.r1jaska
3.1.1
3.1.2
3.1.3
3.1.4
_I:
TABLE OF CONTENTS (Continued)
3.1.4.1 Thalweg Profile..................................24
3.1.4.2 Cross Section Profile............................24
3.1.5 Backwater............................................25
3.2.1 Site Description.....................................25
3.2.2 Stage/Discharge Relationship.........................27
3.2.3 Mainstem Breaching and Controlling Discharges........27
3.2.4 Channel Geometry.....................................28
3.2 Eagle's Nest Side Channel (RM 36.2).
3.2.4.1 Thalweg Profile .
3.2.4.2 Cross Section Profile .
25
28
29 -
3.2.5 Backwater..29
3.3 Kroto Slough Head (Rfvl 36.3)..............................29
3.3.1 Site Description .
3.3.2 Stage/Discharge Relationship .
3.3.3 Mainstem Breaching and Controlling Discharges .
3.3.4 Channel Geometry .
3.3.4.1 Thalweg Profile .
3.3.4.2 Cross Section Profile ...........•................
29
31
33
36
36
38
3.3.5 Backwater... . . . . . . . . . . . . .... . . . . . . . . . . . . .... . . . . . . . . .38
3.4 Rolly Creek (Rr~39.0)....................................38
3.4.1 Site Description.....................................38
3.4.2 Stage/Discharge Relationship.........................39
3.4.3 Channel Geometry.....................................39
3.4.3.1 Thalweg Profile..................................39
3.4 .3.2 Cross Section Profile............................42
3.4.4 Backwater.............................................12
3.5 Bear Bait Side Channel (RM 42.9).........................43
3.5.1 Site Description.....................................43
3.5.2 Stage/Discharge Relationship.........................43
3.5.3 Mainstem Breaching and Controlling Discharges........46
3.5.4 Channel Geometry.....................49
3.5.4.1 Thalweg Profile......49
3.5.4.2 Cross Section Profile............................50
i i
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TABLE OF CONTENTS (Continued)Page
3.5.5 Backwater............................................50
3.6 Last Chance Side Channel (RM 44.4).......................50
3.6.1 Site Description.....................................50
3.6.2 Stage/Discharge Relationship.........................51
3.6.3 Mainstem Breaching and Controlling Discharges........54
3.6.4 Channel Geometry.....................................57
3.6.4.1 Thalweg Profile.....57
3.6.4.2 Cross Section Profile............................58
3.6.5 Backwater............................................58
3.7 Rustic Wilderness Side Channel (RM 59.5).................59
3.7.1 Site Description.....................................59
3.7.2 Stage/Discharge Relationship.........................59
3.7.3 Mainstem Breaching and Controlling Discharges........62
3.7.4 Channel Geometry.....................................65
3.7.4.1 Thalweg Profile .
3.7.4.2 Cross Section Profile ........................•...
65
65
3.7.5 Backwater............................................66
3.8 Caswell Creek (RM 63.0)..................................66
3.8.1 Site Description.....................................66
3.8.2 Stage/Discharge Relationship.........................69
3.8.3 Channel Geometry.....................................69
3 .8.3 .1 Th a1weg Prof i 1e.. . . .. .. . . .. . . . . ..... . .. .. . .. . . . ..69
3.8.3.2 Cross Section Profile............................70
3.8.4 Backwater :............70
3.9 Island Side Channel (RM 63.2)............................70
3.9.1 Site Description.....................................70
3.9.2 Stage/Discharge Relationship..71
3.9.3 Mainstem Breaching and Controlling Discharges........73
3.9.4 Channel Geometry........80
3.9.4.1 Thalweg Profile..................................AD
3.9.4.2 Cross Section Profile............................80
3.9.5 Backwater............................................80
iii
TABLE OF CONTENTS (Continued)
3.10 Mainstem West Bank Side Channel (RM 74.4)...............82
3.10.1 Site Description .
3.10.2 Stage/Discharge Relationship .
3.10.3 Mainstem Breaching and Controlling Discharges .
3.10.4 Channel Geometry .
82
84
86
90
3.10.4.1 Thalweg Profile.................................90
3.10.4.2 Cross Section Profile...........................91
3.10.5 Backwater...........................................91
3.11 Goose 2 Side Channel (RM 74.8).94
3.11.1 Site Description....................................94
3.11.2 Stage/Discharge Relationship....97
3.11.3 Mainstem Breaching and Controlling Discharges.......97
3.11.4 Chan ne1 Ge ome t ry . . . .. . . . . . .. . ... . . . . . .. . .. . .. . . . .. . .100
3.11.4.1 Thalweg Profile.................................100
3.11.4.2 Cross Section Profile...........................102
3.11.5 Backwater...........................................102
3.12 Circular Side Channel (RM 75.3).........................103
3.12.1 Site Description .
3.12.2 Stage/Discharge Relationship .
3.12.3 Mainstem Breaching and Controlling Discharges .....•.
3.12.4 Channel Geometry .
3.12.4.1 Thalweg Profile .
3.12.4.2 Cross Section Profile .........................•.
103
105
105
112
112
112
-
3.12.5 Backwater...........................................112
3.13 Sauna Side Channel (RM 79.8).....................•......115
3.13.1 Site Description....................................115
3.13.2 Stage/Discharge Relationship........................117
3.13.3 Mainstem Breaching and Controlling Discharges.......121
3.13.4 Channel Geometry...........•.....123
3.13.4.1 Thalweg Profile.................................123
3.13.4.2 Cross Section Profile...........................123
3.13.5 Backwater .......•...................................
iv
124
TABLE OF CONTENTS (Continued)Page
3.14 Sucker Side Channel (RM 84.5)...........................124
3.14.1 Site Description ...•................................
3.14.2 Stage/Discharge Relationship .
3.14.3 Mainstem Breaching and Contro11ing Discharges .
3.14.4 Channel Geometry .....•..............................
124
126
129
134
3.14.4.1 Thalweg Profile.................................134
3.14.4.2 Cross Section Profile...........................137
3.14.5 Backwater.........137
3.15 Beaver Dam Slough and Side Channel (RM 86.3)............137
3.15.1 Site Description....................................137
3.15.2 Stage/Discharge Relationship........................138
3.15.3 Mainstem Breaching and Controlling Discharges.......141
3.15.4 Channel Geometry..........•..144
3.15.4.1 Thalweg Profile.....•........144
3.15.4.2 Cross Section Profile...........................146
3.15.5 Backwater .......................•...................146
3.16 Sunset Side Channel (RM 86.9)...........................147
3.16.1 Site Description....................................147
3.16.2 Stage/Discharge Relationship.............150
3.16.3 Mainstem Breaching and Controlling Discharges.......150
3.16.4 Channel Geometry...153
3.16.4.1 Thalweg Profile..............•.......•..........153
3.16.4.2 Cross Section Profile...........................155
3.16.5 Backwater...155
3.17 Sunrise Side Channel (RM 87.0).•........................155
3.17.1 Site Description....................................155
3.17.2 Stage/Discharge Re1ationship........................158
3.17.3 Mainstem Breaching and Controlling Discharges.......160
3.17.4 Channel Geometry....................................163
3.17.4.1 Thalweg Profile.................................163
3.17.4.2 Cross Section Profile...........................163
3.17.5 Backwater.......165
v
TABLE OF CONTENTS (Continued)Page
3.18 Birch Creek Slough (RM 88.4)............................165
3.18.1 Site Description .
3.18.2 Stage/Discharge Relationship .
3.18.3 Mainstem Breaching and Controlling Discharges .
3.18.4 Channel Geometry .
3.18.4.1 Thalweg Profile .
3.18.4.2 Cross Section Profile .
165
167
170
171
171
J.71 -
3.18.5 Backwater.....•..........171
3.19.1 Site Description....................................172
3.19.2 Stage/Discharge Relationship........................J.74
3.19.3 Mainstem Breaching and Controlling Discharges.......178
3.19.4 Channel Geometry.......•......180
3.19.4.1 Thalweg Profile.................................180
3.19.4.2 Cross Section Profile...........................180
3.19 Trapper Creek Side Channel (RM 91.6).
3.19.5 Backwater .
4.0 SUMMARY ...................................•................
172
181
184
-
5.0 GLOSSARy...................................................192
6.a CONTRIBUTORS.... . . .. . . . .. . ..•...... . . . .. . . .... . . . .... . .. . ..197
7.0 ACKNOWLEDGEMENTS...........................................198
8.0 LITERATURE CITED...........................................199
9.0 ATTACHMENTS
vi
-
LIST OF FIGURES
Fi gure 1
Figure 2
Figure 3
Figure 4
Figure 5
Task 14 study site locations .
Overview of Hooligan (RM 35.2)and Eagle1s
Nest Side Channel (RM 36.2).
Location of Hooligan Side Channel study
site (RM 35.2).
Hooligan Side Channel streamflow versus
WSEL rating curve from Q site located 50
feet upstream from transect 3 .
Hooligan Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve from Q site
located 50 feet upstream from transect 3 .........•
4
14
15
17
18
Comparison of rating curves for Hooligan
Side Channel Q site located 50 feet
upstream from transect 3..........................22
Location of Eaglefs Nest Side Channel study
site (Rt~36.2)...26
Overview of Kroto Slough Head (RM 36.3)...........30
Location of Kroto Slough Head study site
(RM 36.3).........................................32
Kroto Slough Head streamfl ow versus WSEL
rating curve at transect 2 Q Site.................34
Kroto Slough Head streamflow versus
mainstem discharge (cfs)at Sunshine
Station (USGS 15292780)rating curve at
transect 2 Q site.................................35
r-
i
Figure 12
Figure 13
Figure 14
Fi gure 15
Comparison of rating curves for Kroto
Slough Head at transect 2 Q Site .
Overview of Rolly Creek (RJIII 39.0).
Location of Rolly Creek study site (RM
39.0).
Overview of Bear Bait Side Channel (RM
42.9)~.
vii
37
40
41
44
LIST OF FIGURES (Continued)
Fi gure 16
Figure 17
Fi gure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Location of Bear Bait Side Channel study
site (RM 42.9)••. •. . . •. • . . . . . . . . . . . . . . . . . . . . . . . . . .
Bear Bait Side Channel streamflow versus
WSEL rating curve at transect 2 Q Site .
Bear Bait Si de Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site ..
Overvi ew of Last Chance Si de Channel (RM
44 ..4)..
Location of Last Chance Side Channel study
site (RM 44.4).•.....•.•....•..•.•........•••.....
Last Chance Side Channel streamflow versus
WSEL rating curve at transect 2 Q Site .
Last Chance Si de Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site ..
Overview of Rustic Wilderness Side Channel
(RM 59 ..5)..
Location of Rustic Wilderness Side Channel
study site (RM 59.5).
45
47
48
52
53
55
56
60
61
-
_.
Figure 25 Rustic Wilderness Side Channel streamflow
versus ~JSEL rating curve at transect 4 Q
Site...............................•..............63
Figure 26
Fi gure 27
Figure 28
Figure 29
Rustic ~Jilderness Side Channel streamflow
versus mainstem discharae at Sunshine
Station (USGS 15292780)rating curve at
transect 4 Q Si te .
Overview of Caswell Creek (RM 63.0)and
Island Side Channel (RM 63.2).
Location of Caswell Creek study site (RM
63.0).............•...............................
Location of Island Side Channel study site
(RM 63.2).
viii
64
67
68
72
LIST OF FIGURES (Continued)
Figure 30
Figure 31
Figure 32
Fi gure 33
Figure 34
Fi gure 35
Fi gure 36
Island Side Channel streamflow versus WSEL
rating curve at transect 1 Q Site ..•.........•....
Island Side Channel streamflow versus WSEL
rating curve at transect 6 Q Site ..........••...•.
Isl and Side Channel streamflow versus
mainstem discharge at Sunshine (USGS
15292780)rating curve at transect 1 Q
Site ..
Island Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 6
Q Site ..........••...••...•..•..........•.........
Comparison of rating curves for Island Side
Channel transect 6 Q Site ..•................•.•...
Overview of Mainstem West Bank Side Channel
(RM 74.4)and Circular Side Channel (RM
75.3)•••.......•......•..••••........•............
Location of Mainstem West Bank Side Channel
study site (RM 74.4)..
74
75
76
77
79
83
85
Figure 37 Ma instem West Bank Si de Channel streamfl ow
versus WSEL rat i ng curve at transect 1 Q
Site...........................................................................................87
Figure 38 Mainstem West Bank Side Channel streamflow
versus rnai nstem di scharge at Sunshi ne
Station (USGS 15292780)rating curve at
transect 1 Q Site .88
Figure 39
Figure 40
Fi gure 41
Figure 42
Figure 43
Comparison of rating curves for Mainstem
West Bank Side Channel transect 1 Q Site..........89
Overview of Goose 2 Side Channel (Rr~74.8)........95
Location of Goose 2 Side Channel study site
(RM 74.8).....•.................96
Goose 2 Side Channel streamflow versus WSEL
rating curve at transect 2 Q Site.................98
Goose 2 Side Channel streamflow versus
mainstern discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site............................................99
ix
LIST OF FIGURES (Continued)
Circular Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 1
Q Si te... . . . . . . . .... . . . . . . . . . . . . . . . ........... . . . .108
Figure 44
Figure 45
Figure 46
Figure 47
Figure 48
Figure 49
Fi gure 50
Figure 51
Figure 52
Figure 53
Figure 54
Figure 55
Figure 56
Figure 57
Figure 58
Comparison of rating curves for Goose 2
Side Channel transect 2 Q Site .
Location of Circular Side Channel study
site (R~1 75.3).
Circular Side Channel streamflow versus
WSEL rating curve at transect 1 Q Site .
Circular Side Channel streamflow versus
WSEL rating curve at transect 4 Q Site .
Circular Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 4
Q Site .
Comparison of rating curves for Circular
Side Channel at transect 4 Q Site .
Overview of Sauna Side Channel (RM 79.8).
Location of Sauna Side Channel study site
(RM 79.8).............•...........................
Sauna Si de Channel streamflow versus WSEL
rating curve at transect 2 Q Site .
Sauna Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site .
Comparison of rating curves for Sauna Side
Channel transect 2 Q Site .
Overview of Sucker Side Channel (RM 84.5).
Location of Sucker Side Channel study site
(R~1 84.5).
Sucker Side Channel streamflow versus WSEL
rati ng curve at transect 2 Q Site .
x
101
104
106
107
109
111
116
118
119
120
122
127
128
130
~,
-
-
-
-
LIST OF FIGURES (Continued)
Figure 59 Sucker Si de Channel streamflow versus WSEL
rating curve at transect 5 Q Site .....•.....•.....131
-
Figure 60 Sucker Si de Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site............................................132
-
Figure 61
Figure 62
Figure 63
Figure 64
Figure 65
Figure 66
Figure 67
Sucker Si de Channel streamflo\'1 versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 5
Q Site .
Comparison of rating curves for Sucker Side
Channel transect 2 Q Site ......•..................
Comparison of rating curves for Sucker Side
Channel transect 5 Q Site ...•...•..•..............
Overview of Beaver Dam Slough (RJ~1 86.3)and
Beaver Dam Side Channel (RM 86.3).
Loca ti on of Beaver Dam Slough and Beaver
Dam Side Channel study site (RM 86.3).
Beaver Dam Si de Channel streamflow versus
WSEL rating curve at transect 4 Q Site .
Beaver Dam Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 4
Q Site ......•...........•.........................
133
135
136
139
140
142
143
,.-
Figure 68
I~Fi gure 69
""'"Figure 70
~Figure 71
Figure 72
Comparison of rating curves for Beaver Dam
Side Channel transect 4 Q Site....................145
Overvie\i'of Sunset Side Channel and Sunrise
Side Channel study sites (RM 86.9 and RM
87.0)148
Location of Sunset Side Channel study site
(RM 86.9). . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
Sunset Side Channel streamflow versus WSEL
rating curve at transect 1 Q Site.................151
Sunset Si de Channel streamflow versus
mainstem discharge at Sunshine (USGS
15292780)rating curve at transect 1 Q
Site 152
xi
LIST OF FIGURES (Continued)
-
Sunri se Si de Channel streamflow versus
mainstem discharge at Sunshine (USGS
15292780)rating curve at transect 4 Q
Site.. .... . ........ .... . . . .. . . . ..•.. . . . . . . . . . .. . . .162
Figure 73
Figure 74
Figure 75
Figure 76
Fi gure 77
Fi gure 78
Figure 79
Figure 80
Figure 81
Figure 82
Figure 83
Figure 84
Figure 85
Figure 86
Comparison of rating curves for Sunset Side
Channel transect 1 Q Site .
Location of Sunrise Side Channel study site
(RM 87.0)..................•......................
Sunrise Side Channel streamflow versus WSEL
rati ng curve at transect 4 Q Site ...........•.....
Comparison of rating curves for Sunrise
Side Channel transect 4 Q Site .
Overview of Birch Creek Slough study site
(RM 88.4)•••••••••••••••••••••••••••••••••••••••••
Location of Birch Creek Slough study site
(RM 88.4)•.••••••..••••••••..•••••.•..••.••..•....
Bi rch Creek Slough streamflow versus WSEL
rating curve at transect 6 Q Site .
Overview of Trapper Creek Side Channel
study site (RM 91.6).
Location of Trapper Creek Side Channel
study site (R~1 91.6).......•......................
Trapper Creek Si de Channel streamflow
versus WSEL rating curve at transect 4 Q
Site .
Trapper Creek Si de Channel streamflow
versus ma instem di scharge at Sunshi ne
Station (USGS 15292780)rating curve at
transect 4 Q Site .......•.........................
Comparison of rating curves for Trapper
Creek Side Channel Transect 4 Q Site .
Susitna River hydrograph for May -October
1981,1982,1983 and 1984 at Sunshine
Station (USGS 15292780).
xii
154
159
161
164
166
168
169
173
175
176
177
179
185
....
-
A cornparison of water surface elevations
from transects located within Island Side
Channel...........................................81
-
LIST OF TABLES
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Task 14 study sites supported by the
Physical Description Support Program .
A comparison of 1984 observations used to
determine the initial breaching mainstem
discharge at Task 14 study sites ••..........•..•..
A comparison of flow estimates determined
from equations developed from rating curves
for controlling mainstem discharges ...••.......••.
A comparison of water surface elevations
from transects located within Mainstem West
Bank Si de Channel .......•.•..........••...........
A comparison of water surface elevations
from transects located within Circular Side
Channel ...........•.....•..................•......
A comparison of water surface elevations
from transects located within Sauna Side
Channe 1 ••..•.................................•....
A comparison of water surface elevations
from transects located within Sunset Side
Channel ....•.........••..................•.......•
A comparison of water surface elevations
from transects located within Trapper Creek
Side Cha nn e1 ...............•......................
Initial breaching discharges.controll ing
discharges and the corresponding stream-
flows for the 1984 Task 14 study sites •...........
Summary of the extent of backwater and the
corresponding mainstem discharge for Task
14 study sites .....•..........•...................
xiii
3
20
23
92
113
125
156
182
187
190
LIST OF ATTACHMENT FIGURES
-
-
Figure A-I
F;gure C-l
Fi gu re C-2
Figure C-3
Figure C-4
Figure C-5
Figure C-6
Figure C-7
Figure C-8
Lower Susitna River Basin lag times
referenced to Sunshine Station (USGS
15292780).
Thalweg profile of the study site at
Hooligan Side Channel .
Thalweg profile of the study site at
Eagle's Nest Side Channel .
Thalweg profile of the study site at Kroto
Slough Head .
Thalweg profile of the study site at Rolly
Cree k .
Tha lweg profil e of the study site at Bea r
Bait Side Channel .
Tha lweg profi 1e of the study site at Last
Chance Side Channel .........•.....................
Thalweg profile of the study site at Rustic
Wilderness Side Channel .
Thalweg profile of the study site at
Caswell Creek .
A-5
C-l
C-2
C-3
C-4
C-5
C-6
C-7
C-8
-
Figure C-9 Thalweg profile of the study site at Island
Si de Channel .
Figure C-I0 Thalweg profile of the study site at
Mainstem West Bank Side ChanneL .
C-9
C-I0
Figure C-l1 Thalweg profile of the study site at Goose
2 Side Channel....................................C-ll
Figure C-12 Thalweg profile of the study site at
Circular Side Channel.............................C-12
Figure C-13 Thalweg profile of the study site at Sauna
Side Channel......................................C-13
Figure C-14 Thalweg profile of the study site at Sucker
Side Channel .
Figure C-15 Thalweg profile of the study site at Beaver
Dam Slough .
Figure C-16 Thalweg profile of the study site at Beaver
Dam Side Channel .
xiv
C-14
C-15
C-16
"""
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LIST OF ATTACHMENT FIGURES (Continued)
Figure C-17 Thalweg profile of the study site at Sunset
Side Channel ~.............C-17
Figure C-18 Thalweg profile of the study site at
Sunrise Side Channel..............................C-18
Figure C-19 Thalweg profile of the study site at Birch
Creek Slough......................................C-19
Figure C-20 Thalweg profile of the study site at
Trapper Creek Side ChanneL.......................C-20
-
--
-
Figure 0-1
Figure 0-2
Figure 0-3
Figure 0-4
Figure 0-5
Figure 0-6
Figure 0-7
Fi gure 0-8
Cross sectional profile obtained 50 feet
upstream of transect 3 at Hool i gan Si de
Channel ..................................•........
Cross sectional profile obtained at
transect 2 of Eagle's Nest Side Channel .
Cross sectional profile obtained at
transect 2 of Kroto Slough Head .
Cross sectional profile obtained at
transect 2 of Rolly Creek ..
Cross sectional profile obtained at
transect 2 of Bear Bait Side Channel ...•..........
Cross sectional profile obtained at
transect 2 of Last Chance Side Channel .
Cross sectional profile obtained at
transect 4 of Rustic Wilderness Side
Channe 1 ••.••••••••••••••••.•..••••••.••••••.••••••
Cross sectional profile obtained at
transect 4 of Caswell Creek •......................
0-1
0-2
0-3
0-4
0-5
0-6
0-7
0-8
Figure 0-9 Cross sectional profile obtained at
transect 1 of Island Side Channel.................0-9
Figure 0-10 Cross sectional profile obtained at
transect 1A of Island Side Channel................D-I0
Figure 0-11 Cross sectional profile obtained at
transect 2 of Island Side Channel.................0-11
xv
LIST OF ATTACHMENT FIGURES (Continued)
Figure 0-12 Cross sectional profile obtained at
transect 3 of Island Side Channel.................D-12
Figure 0-13 Cross sectional profile obtained at
transect 4 of Island Side Channel.................0-13
-
Figure 0-14 Cross sectional profile obtained at
transect 4A of Island Side Channel................0-14
Figure 0-15 Cross sectional profile obtained at
transect 5 of Island Side Channel .
Figure 0-16 Cross sectional profile obtained at
transect 6 of Island Side Channel .
Figure 0-17 Cross sectional profile obtained at
transect 1 of Mainstem West Bank Side
Channel .
0-15
0-16
0-17
-
Figure 0-18 Cross sectional profile obtained at
transect 2 of Mainstem West Bank Side
Channel •.................................·....0-18
Figure 0-19 Cross sectional profile obtained at
transect 2A of Mainstem West Bank Side
Channel...........................................0-19
Figure 0-20 Cross sectional profile obtained at
transect 3 of Mainstem West Bank Side
Channel.. . . .... . . .... . . .... . . . . . . . .... . .... . . . . . . .0-20
Figure 0-21 Cross sectional profile obtained at
transect 3A of Mainstem West Bank Side
Channel...........................................0-21
Figure 0-22 Cross sectional profile obtained at
transect 3B of Mainstem West Bank Side
Channe 1•.•••..••••••..•••.••.•••.••.••••......•.•.0-22
-
Figure 0-23 Cross sectional profile obtained at
transect 4 of Mainstem West Bank Side
Channe 1.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0-23
Figure 0-24 Cross sectional profile obtained at
transect 2 of Goose 2 Side Channel................D-24
Figure 0-25 Cross sectional profile obtained at
transect 1 of Circular Side Channel .
xvi
0-25
LIST OF ATTACHMENT FIGURES (Continued)
.-
Figure D-26 Cross sectional profile obtained at
transect 2 of Circular Side Channel .......•.......0-26
Figure 0-27 Cross sectional profile obtained at
transect 2A of Circular Side Channel •.............0-27
Figure 0-28 Cross sectional profile obtained at
transect 3 of Circular Side Channel ...............0-28
Figure 0-29 Cross sectional profi 1e obtained at
transect 4 of Circular Side Channel ...............0-29
Figure 0-30 Cross sectional profile obtained at
transect 5 of Circular Side Channel .•...........•.0-30
Figure 0-31 Cross sectional profile obtained at
transect 1 of Sauna Side Channe 1 •••••••••••••••••.0-31
Figure 0-32 Cross sectional profile obtained at
transect 2 of Sauna Side Channel ......•.........•.0-32
Figure 0-33 Cross sectional profil e obtained at-transect 3 of Sauna Side Channel ................•.0-33
Figure 0-34 Cross sectional profi le obtained at
r-transect 4 of Sauna Side Channel ..................0-34
Figure 0-35 Cross sectional profile obtained at
transect 2 of Sucker Side ChanneL ................0-35
Figure 0-36 Cross sectional profile obtained at
transect 5 of Sucker Side Channel ........•........0-36
~
Figure 0-37 Cross sectional profi 1e obtained at
transect 1 of Beaver Dam Slough ...................0-37
Figure 0-38 Cross sectional profile obtained at
transect 4 of Beaver Dam Side Channel .............0-38
Figure 0-39 Cross sectional profile obtained at
transect 0 of Sunset Side ChanneL ................0-39
Figure 0-40 Cross sectional profile obtained at
transect 1 of Sunset Side Channel .................D-40
Fi gure 0-41 Cross sectional profile obtained at
transect 2 of Sunset Side Channel .................0-41
Fi gure D-42 Cross sectional profi 1e obtained at
,.....transect 3 of Sunset Side channel .................D-42
xvii
LIST OF ATTACHMENT FIGURES (Continued)
Figure D-43 Cross sectional profile obtained at
transect 4 of Sunset Side Channel.................0-43
Figure 0-44 Cross sectional profile obtained at
transect 5 of Sunset Side Channel.................0-44
Figure 0-45 Cross sectional profile obtained at
transect 6 of Sunset Side Channel.................0-45
Figure 0-46 Cross sectional profile obtained at
transect 4 of Sunrise Side Channel................0-46
~I
~-
-
-
Figure 0-47 Cross sectional profile obtained at
transect 2 of Bi rch Creek Slough ....•.............
Figure 0-48 Cross sectional profile obtained at
transect 6 of Birch Creek Slough ...•..............
Figure 0-49 Cross sectional profile obtained at
transect 1 of Trapper Creek Side Channel .
Figure D-50 Cross sectional profile obtained at
transect 2 of Trapper Creek Side Channel .
Figure D-51 Cross sectional profile obtained at
transect 3 of Trapper Creek Side Channel .
D-47
0-48
0-49
0-50
0-51
,.,.,.
-
-
Figure 0-52 Cross sectional profile obtained at
transect 4 of Trapper Creek Side Channel..........0-52 -Figure E-1
Figure E-2
Fi gure E-3
Fi gure E-4
WSEL versus mainstem discharge (USGS
15292780)at Hooligan Side Channel 50 feet
upstream of transect 3 (Q site).
WSEL versus mainstem discharge (USGS
15292780)at Eagle's Nest Side Channel
transect 2 (Q site)....•..........................
WSEL versus mainstem discharge (USGS
15292780)at Kroto Slough Side Channel
transect"2 (0 site).
WSEL versus mainstem discharge (USGS
15292780)at Bear Bait Side Channel
transect 2 (0 site)....................•..........
xviii
E-1
E-3
E-4
LIST OF ATTACHMENT FIGURES (Continued)
,-
Fi gure E-5
Figure E-6
Figure £-7
WSEL versus mainstem discharge (USGS
15292780)at Last Chance Side Channel
transect 2 (0 site).
WSEL versus mainstem discharge (USGS
15292780)at Rustic Wilderness Side Channel
transect 4 (0 site).
WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel transect 1
(0 site)•..............•..........................
E-5
E-6
E-7
-
Fi gure E-8
Fi gure E':'9
WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel transect
1A.• •• • •• •• • • ••• • •• • • ••• •• • •• • • •• • • •• • • • •• • • • • •• • • E-8
WSEL versus mainstem discharge (USGS
15292780)at Island Side channel transect
2•• • ••• • • •• • •• ••• • •• • •• • •• • • •• •• •• • •• • • •• • •• • •••• • E-9
Fi gure E-I0 WSEL versus ma i nstem di scharge (USGS
15292780)at Island Side Channel transect
3 .E-I0
Figure E-l1 WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel transect
4.............. .... ......... . . ................ . ... ... ...............E-ll
Figure E-12 WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel transect
4A..... ....••.. . . .....•.... . ...... ........ . . .... . .E-12
Figure E-13 WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel transect
5... . .. .. ......... ................ ....... . . . . . .. . .E-13
Figure E-14 WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel transect 6
(Q site)..........................................E-14
Figure E-15 WSEL versus mainstem discharge (USGS
15292780)at Ma instem v/est Bank Si de
Channel transect 1 (Q site).E-15
-
Figure E-16 WSEL versus mainstem discharge (USGS
15292780)at Mainstem West Bank Side
Channel transect 2................................E-16
Figure E-17 WSEL versus mainstem discharge (USGS
15292780)at ~1a i nstem It/est Bank Si de
Channel transect 2A...............................E-17
xix
LIST OF ATTACHMENT FIGURES (Continued)
Figure E-18 WSEL versus rnainstern discharge (USGS
15292780)at Ma instern West Bank Si de
Channel transect 3 .......•........................E-18
Figure E-19 WSEL versus rnainstern discharge (USGS
15292780)at ~~ainstern West Bank Side
Channel transect 3A...............................E-19
Figure E-20 WSEL versus rnainstern discharge (USGS
15292780)at Ma i nstem ~Iest Bank Si de
Channel transect 3B .E-20
Figure E-21 WSEL versus mainstern discharge (USGS
15292780)at ~~ainstem West Bank Side
Channel transect 4................................E-21
Fi gure E-22 WSEL versus rna i nstem di scha rge (USGS
15292780)at Goose 2 Side Channel transect
2 (Q site)..•....................•.....•..........E-22
Figure E-23 WSEL versus mainstem discharge (USGS
15292780)at Circular Side Channel transect
1 (0 site).........................................E-23
Figure E-24 WSEL versus rnainstem discharge (USGS
15292780)at Circular Side Channel transect
2.................................................E-24
Figure E-25 WSEL versus mainstem discharge (USGS
15292780)at Circular Side Channel transect
2A....... ......... .. . . . ....... . . ...•.. . . . . . . . . . . .. .E-25
Figure E-26 WSEL versus mainstem discharge (USGS
15292780)at Circular Side Channel transect
3.. . . . . . . .... .•.•.. .. . . . .... . . . . .. ....•.. . .. . .. ...E-26
Figure E-27 WSEL versus mainstem discharge (USGS
15292780)at Circular Side Channel transect
4 (Q site)...E-27
Figure E-28 WSEL versus mainstern discharge (USGS
15292780)at Circular Side Channel transect
5.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-28
Figure E-29 WSEL versus mainstem discharge (USGS
15292780)at Circular Side Channel head...........E-29
Figure E-30 WSEL versus mainstem discharge (USGS
15292780)at Sauna Side Channel transect 1........E-30
xx
-
-
LIST OF ATTACHIVlENT FIGURES (Continued)
Figure E-31
Figure E-32
Fi gure E-33
Figure E-34
WSEL versus mainstem discharge (USGS
15292780)at Sauna Side Channel transect 2
(0 site).
WSEL versus mainstem discharge (USGS
15292780)at Sauna Side Channel transect 3 .
WSEL versus mainstem discharge (USGS
15292780)at Sauna Side Channel transect 4 .
WSEL versus mainstem discharge (USGS
15292780)at Sucker Side Channel transect 2
(Q site).•.......................................•
E-31
E-32
E-33
E-34
-Figure E-35 WSEL versus mainstem discharge (USGS
15292780)at Sucker Side Channel transect 5
(Q site).E-35
E-39
Figure E-36 WSEL versus mainstem discharge (USGS
15292780)at Beaver Dam Slough transect 1
(Qsite)E-36
Figure E-37 WSEL versus mainstem discharge (USGS
15292780)at Beaver Dam Si de Channel
transect 4 (0 site)...............................E-37
Figure E-38 WSEL versus mainstem discharge (USGS
15292780)at Beaver Dam Side Channel head.........E-38
Figure E-39 WSEL versus mainstem discharge (USGS
15292780)at Sunset Side Channel transect
O•••••••••••••••••••••••••••••••••••••••••••••••••
Figure E-40
Fi gure E-41
Figure E-42
Fi gure E-43
WSEL versus mainstem discharge (USGS
15292780)at Sunset Side Channel transect 1
(Q site).
WSEL versus mainstem discharge (USGS
15292780)at Sunset Side Channel transect
2 •••••••••••••••••••••••••••••••••••••••••••••••••
WSEL versus mainstem discharge (USGS
15292780)at Sunset Side channel transect
3 •...•......••.....•.......•.•......•.....•.......
WSEL versus mainstem discharge (USGS
15292780)at Sunset Side Channel transect
4 .
xxi
E-40
E-41
E-43
LIST OF ATTACHMENT FIGURES (Continued)
Figure E-44 WSEL versus mainstem discharge (USGS
15292780)at Sunset Side Channel transect
5 ..........•..•..•........•..............a a •••••••
Figure E-45 WSEL versus mainstem discharge (USGS
15292780)at Sunset Side Channel transect 6 .
Paoe
--"'--
E-44
E-45
.-
Figure E-46 WSEL versus mainstem discharge (USGS
15292780)at Sunrise Side Channel transect
4 (Q site}...E-46
Figure E-47 WSEL versus mainstem discharge (USGS
15292780)at Birch Creek Slough head..............E-47
Figure E-48 WSEL versus mainstem discharge (USGS
15292780)at Trapper Creek Side Channel
transect 1........................................E-48
Figure E-49 WSEL versus mainstem discharge (USGS
15292780)at Trapper Creek Side Channel
transect 2........................................E-49
Figure E-50 WSEL versus mainstem discharge (USGS
15292780)at Trapper Creek Side Channel
transect 3 ••.......•....•..••..•........••..••....E-50
-
Figure E-51 WSEL versus mainstem discharge (USGS
15292780)at Trapper Creek Side Channel
transect 4 (Q site)...............................E-51
xxii
-
LIST OF ATTACHMENT TABLES
-
-
-
-
Table A-I
Table B-1
Table C-l
Table C-2
Table C-3
Table C-4
Table C-5
Table C-6
Table C-7
Table C-8
Table C-9
Table C-I0
Table C-11
Table C-12
Table C-13
Table C-14
Distance in miles that a flood wave of a
given magnitude will travel in a given
time ..
Comparison of water surface elevations and
streamflow,measured at Task 14 study
sites,to mean daily mainstem discharge
at Sunshi ne Station (USGS 15292780).
Thalweg profile data obtained at Hooligan
Side Channel (RM 35.2)..............•.............
Thalweg profile data obtained at Eagle's
Nest Side Channel (RM 36.2).
Thalweg profile daia obtained at Kroto
Slough Head (RM 36.3)...........•.................
Thalweg profile data obtained at Rolly
Creek (RM 39.0)............•......................
Thalweg profile data obtained at Bear Bait
Side Channel (RM 42.9).
Thalweg profile data obtained at Last
Chance Side Channel (RM 44.4).
Thalweg profile data obtained at Rustic
Wilderness Side Channel (RM 59.5).
Thalweg profile data obtained at Island
Side Channel (RM 63.2).................•..........
Thalweg profile data obtained at Mainstem
West Bank Side Channel (RM 74.4).
Thalweg profile data obtained at Goose 2
Side Channel (RM 74.8).....w ••••••••••••••••••••••
Thalweg profile data obtained at Ci rcular
Side Channel {RM 75.3).
Thalweg profile data obtained at Sauna Side
Chan ne 1 (RN 79.8).
Thalweg profile data obtained at Sucker
Side Channel (RM 84.5)............•...............
xxiii
A-4
B-1
C-21
C-23
C-24
C-26
C-27
C-28
C-29
C-30
C-32
C-33
C-35
C-36
C-38
C-39
LIST OF ATTACHMENT TABLES (Continued)
Table C-15
Table C-16
Table C-17
Table C-18
Table C-19
Table C-20
Table 0-1
Table 0-2
Table 0-3
Table 0-4
Table 0-5
Table 0-6
Table 0-7
Table 0-8
Table 0-9
Table 0-10
Thalweg profile data obtained at Beaver Oam
Slough (RM 86.3)......••••.......................•
Thalweg profile data obtained at Beaver Dam
Side Channel (RM 86.3).•..••.••..••....•.......••.
Thalweg profile data obtained at Sunset
Side Channel (RM 86.9)•.•...•......•••.•..•.......
Thalweg profile data obtained at Sunrise
Side Channel (RM 87.0).••..•..•.•.........••..••.•
Thalweg profile data obtained at Birch
Creek Slough (RM 88.4).......•..•••••••...........
Thalweg profile data obtained at Trapper
Creek Side Channel (RM 91.6).•.....•...•..••....•.
Cross sectional profile data obtained at
Hoo1 igan Side Channel 50 feet upstream of
transect 3 ....•••.....•........••••.•.............
Cross sectional profile data obtained at
Eagle's Nest Side Channel transect 2 (RM
36.2}- .
Cross sectional profile data obtained at
Kroto Slough Head transect 2 (RM 36.3)•••......•..
Cross sectional profile data obtained at
Rolly Creek transect 2 (RM 39.0)..............•...
Cross sectional profile data obtained at
Bear Bait Side Channel transect 2 (RM
42.9).......•..•..................•...............
Cross sectional profile data obtained at
Last Chance Side Channel transect 2 (RM
44.4).....................••......................
Cross sectional profile data obtained at
Rusti c Wil derness Si de Channel transect 4
(RM 59.5)••.......•.......•..•....................
Cross sectional profile data obtained at
Caswell Creek transect 4 (RM 63.0).•..............
Cros s sect i ona 1 profil e data obta i ned at
Island Side Channel transect 1 (RM 63.2).......••.
Cross sectional profile data obtained at
Island Side Channel transect lA (RM 63.2).
xiv
C-40
C-41
C-42
C-44
C-45
C-47
0-53
0-54
0-56
0-57
0-59
0-60
0-61
0-62
0-63
0-65
-
LIST OF ATTACHMENT TABLES (Continued)
Cross sectional profile data obtained at
Ma instem West Bank Si de Channel transect
2A.. . .. . .. ... . . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . . .0-83
.....
-
-
,...,
Table 0-11
Table 0-12
Table 0-13
Table 0-14
Table 0-15
Table 0-16
Table 0-17
Table 0-18
Table 0-19
Table 0-20
Table 0-21
Table 0-22
Table 0-23
Table 0-24
Table 0-25
Cross sectional profile data obtained at
Island Side Channel transect 2 (RM 63.2).
Cross sectional prof"ile data obtained at
Island Side Channel transect 3 (RM 63.2).
Cross sectional profile data obtained at
Island Side Channel transect 4 (RM 63.2).
Cross sectional profile data obtained at
Island Side Channel transect 4A (RM 63.2).
Cross sectional profile data obtained at
Island Side Channel transect 5 (RM 63.2).
Cross sectional profile data obtained at
Island Side Channel transect 6 (RM 63.2).
Cross sectional profile data obtained at
Mainstem West Bank Side Channel transect 1
(RM 74.4)....................•....................
Cross sectional profile data obtained at
Mainstem West Bank Side Channel transect 2
(RM 74.4)......................•..................
Cross sectional profile data obtained at
Mainstem West Bank Side Channel transect 3
(RM 74.4).
Cross sectional profile data obtained at
Mainstem West Bank Side Channel transect 3A
(RM 74.4).
Cross sectional profile data obtained at
Mainstem West Bank Side Channel transect 38
(RM 74.4).
Cross sectional profile data obtained at
Mainstem West Bank Side Channel transect 4
(RM 74.4)......................•....•.............
Cross sectional profile data obtained at
Goose 2 Side Channel transect 2 (RM 74.8).
Cross sectional profile data obtained at
Circular Side Channel transect 1 (RM 75.3).
xv
0-67
0-69
0-71
0-73
D-75
0-77
D-79
D-81
0-85
0-87
0-89
0-90
0-92
0-93
LIST OF ATTACHMENT TABLES (Continued)
Cross sectional profile data obtained at
Sauna Side Channel transect 1 (RM 79.8)...........0-105
Cross sectional profile data obtained at
Circular Side Channel transect 5 (RM 75.3)........0-103
Cross sectional profile data obtained at
Sauna Side Channel transect 3 (RM 79.8)...........0-108
Table 0-26
Table 0-27
Table D-28
Table 0-29
Table 0-30
Table 0-31
Table 0-32
Table 0-33
Table 0-34
Table 0-35
Table 0-36
Table 0-37
Table 0-38
Table 0-39
Table 0-40
Cross sectional profile data obtained at
Circular Side Channel transect 2 (RM 75.3).
Cross secti ona 1 profil e data obtained at
Circular Side Channel transect 2A (RM
75.3}.••..........................................
Cross sectional profile data obtained at
Circular Side Channel transect 3 (RM 75.3).
Cross sectional profile data obtained at
Circular Side Channel transect 4 (RM 75.3).
Cross sectional profile data obtained at
Sauna Side Channel transect 2 (RM 79.8).
Cross sectional profile data obtained at
Sauna Side Channel transect 4 (RM 79.8}.
Cross sectional profile data obtained at
Sucker Side channel transect 2 (RM 84.5).
Cross secti ona 1 profi 1e data obta i ned at
Sucker Side Channel transect 5 (RM 84.5).
Cross sectiona1 profile data obtained at
Beaver Dam Slough transect 1 (RM 96.3).
Cross sectional profile data obtained at
Beaver Dam Side Channel transect 4 (RM
86.3).
Cross sectional profile data obtained at
Sunset Side Channel transect 0 (RM 86.9).
Cross sectional profile data obtained at
Sunset Side Channel transect 1 (RM 86.9).
xvi
D-95
0-97
0-99
D-101
0-106
0-110
D-112
0-113
0-114
0-115
0-116
D-118
-
-
-
-
"'"
LIST OF ATTACHMENT TABLES (Continued)
Table 0-41
Table 0-42
Table 0-43
Table 0-44
Table 0-45
Table 0-46
Table 0-47
Table 0-48
Cross sectional profile data obtained at
Sunset Side Channel transect 2 (RM 86.9)..........0-120
Cross sectional profile data obtained at
Sunset Side Channel transect 3 (RM 86.9)..........0-122
Cross sectional profile data obtained at
Sunset Side Channel transect 4 (RM 86.9)..........D-124
Cross sectional profile data obtained at
Sunset Side Channel transect 5 (RM 86.9)..........0-126
Cross sectional profile data obtained at
Sunset Side Channel transect 6 (RM 86.9)..........0-128
Cross sectional profile data obtained at
Sunrise Side Channel transect 4 (RM 87.0).........0-130
Cross sectional profile data obtained at
Birch Creek Slough transect 2 (RM 88.4)...........0-131
Cross sectional profile data obtained at
Birch Creek Slough transect 6 (RM 88.4)...........0-132
Table 0-49
Table D-50
Cross sectional profile data obtained at
Trapper Creek Side Channel transect 1 (RM
91.6).
Cross sectional profile data obtained at
Trapper CreekSide Channel transect 2 (RM
91.6).
0-133
0-135
-
....
Table 0-51
Table 0-52
Cross sectional profile data obtained at
Trapper Creek Side Channel transect 3 (RM
91.6).......D-137
Cross sectional profile data obtained at
Trapper Creek Side Channel transect 4 (RM
91.6)......0-139
xvii
-.
-
-
-
--
1.0 OBJECTIVES OF STUDY
The primary objective of this study was to provide hydraul ic support to
the Task 14 lower river Resident and Juvenile Habitat (RJHAB)modelling
study.Correspondingly,the specific objectives of the study were:1)
to evaluate the response of stage and streamflow at Task 14 study sites
to changes in mainstem discharge,2)to describe the general charac-
teristics of each Task 14 study site,3)to describe the initial and
controlling breaching discharges for each Task 14 study site,and 4)to
describe the backwater conditions present within each Task 14 study site
as a function of mainstem discharge.
1
2.0 METHODS
2.1 Site Selection,
The Task 14 study sites are presented in Table 1 and Figure 1.These
study sites were selected by Task 14 study personnel to meet the
specific objectives of Task 14.Refer to the Task 14 summary report for
the criteria used to select these study sites.
2.2 Field Data Collection
Stage,discharge,and channel geometry data were collected at each study
site to evaluate the effect that mainstem discharge has on stage,
streamflow,and backwater.Specific methods used in the field col-
lection of these data are described below.
2.2.1 Stage
Stage data (water surface elevations)were obtained from staff gage
.....
-.
measurements and surveyed water surface elevations.The specifi c
procedures for obtaining stage data are presented in the ADF&G proce-
dures manual (ADF&G 1984).Water surface elevations (l~SEL)were deter-
mined from staff gage observations and surveys and are relative to the
temporary bench mark (TBM)established for each study site.Because
each TBM was assigned an elevation of 100.00 (feet),the resultant water
surface elevations are relative to 100.00 feet and are not "true water
surface elevations"tied into project datum.
2
-
"""
-
Table 1.Task 14 study sites supported by the Physical Description
Support Program.
-
-
-
-
Study Site
Hooligan Side Channel
Eagle1s Nest Side Channel
Kroto Slough Head
Rolly Creek
Bear Bait Side Channel
Last Chance Side Channel
Rustic Wilderness Side Channel
Caswell Creek
Island Side Channel 1
Mainstem West Bank Side Channell
Goose 2 Side Channel
Circular Side Channell
Sauna Side Channell
Sucker Side Channel
Beaver Dam Slough and Side Channel
Sunset Side Channell
Sunrise Side Channel
Birch Creek
Trapper Creek Side Channell
River ~1ile
35.2
36.2
36.3
39.0
42.9
44.4
59.5
63.0
63.2
74.4
74.8
75.3
79.8
89.5
86.3
86.9
87.0
88.4
91.6
1 These side channel study sites were also included in the Task 36
study.
3
-
~i
-
-
10
I
,u·L---RUSTIC WILDERNESS
SIDE CHANNeL
LAST CHANCE SIDE CHANNEL
c--__ROLLY CREEK STUDY SITE
--rfJ~---EAGLES NEST SIDE CHANNEL
HOOLIGAN SIDE CHANNEL
Task 14 study site locations.
INLET
Figure 1.
4
-
-
-
-
2.2.2 Streamflow
Streamflow measurements were collected from streamflow stations located
within each of the study sites.These streamflow stations were located
on selected RJHAB modelling transects.Standard USGS streamflow tech-
niques employing either Price AA or Pygmy flow meters were used to
obtain the streamflow (discharge)measurements.In order to develop
rating curves,stage measurements were also obtained at the time of each
streamflow measurement.Specific procedures utilized in obtaining
streamflow measurements are described in the ADF&G procedures manual
(ADF&G 1984).
2.2.3 Channel Geometry
Thalweg and cross section profiles were determined at each Task 14 study
site.
2.2.3.1 Thalweg Profile
Thalweg profiles were determined for each of the Task 14 study sites.
These thalweg profiles represent the "best"determination of the channel
thalweg by the visual assessment of field crews.Surveying for the
development of the thalweg profile began at either the mouth of the side
channel or the first hydraulic control downstream of the study site.The
thalweg survey continued upstream to the first hydraul ic control above
the study site or to the head of the side channel or side slough.
5
Thalweg data were collected using the standard surveying techniques of
differential leveling with significant morphological features selected
as thalweg points (i.e.,riffles,pools).At eac~of the thalweg points
(or stations),the streambed elevation,'.'later surface elevation,and
distance between thalweg points was determined.All thalweg elevations
are relative to the assigned elevation of the TBM established at each
study site (100.00 ft).
When applicable,cross section profile data were also used to develop
the thalweg profiles.The lowest elevation obtained from a cross
section profile was compared to the thalweg elevation obtained at the
cross section.When a difference in elevation occurred between the
thalweg and cross section profile,the elevation from the cross section
was used.The greatest difference in elevation detected was 0.3 ft.
Specific procedures for the collection of thalweg survey data are
presented in the ADF&G procedures manual (ADF&G 1984).
2.2.3.2 Cross Section Profile
Cross secti ona 1 profi 1es were determi ned for each staff gage 1ocati on
within every Task 14 study site using the standard surveying techniques
of differential leveling.Streambed elevations,water surface ele-
vations,and horizontal distances from bank headpins were obtained for
each cross sectional profile.Specific survey techniques and procedures
used in the collection of cross sectional data are presented in the
ADF&G Procedures Manual (ADF&G,1984).
6
-
-
-
-
-
"""
2.3 Data Analysis
2.3.1 Stage and Streamflow
Water surface elevation (WSEL)data obtained at each staff gage location
were plotted against corresponding mean daily Susitna River discharge as
determined by the United States Geological Survey (USGS)from their
Sunshine gaging station (USGS 15292780).Due to the distance of several
study sites from the Sunshine gaging station,several mainstem discharge
values were determined from a time lag analysis provided by E.W.Trihey
&Associates (see Attachment A).
For each plot,a least squares regression equation was calculated when
sufficient data were available.At several gage sites,more than one
function was evident on a plot as illustrated by a change in the slope
of the line drawn between the data points.For these cases,separate
regressi on equati ons were cal cul ated for each functi on.These regres-
sion equations enable estimates of water surface elevation to be
determined from the range of USGS mainstem discharge values included in
the plots.
Water surface e 1evati ons (\'/SEL)obtai ned from staff gages located at
each streamflow measurement station were also plotted against the
corresponding measured study site streamflow data (Qsc)'Several of the
plots have more than one function as illustrated by a chan~e in the
slope of the line drawn between the data points.Under these cases,a
7
least squares equation is included for each function when sufficient
data was available.These regression equations enable an estimate of
streamflow from observed water surface elevation data.
Plots of measured streamflow (Qsc)versus mean daily mainstem discharge
(Qms)at the USGS Sunshine gaging station (USGS 15292780)were also
developed.These plots include a least squares regression equation for
each function.These equations enable site streamflow to be estimated
from mean,daily mainstem discharge values (USGS 15292780).
2.3.2 Initial Breaching and Controlling Discharges
The breaching phenomenon has been partitioned into two discharge events;
an initial breaching discharge and controlling breaching discharge
event.
2.3.2.1 Initial Breaching Discharges
The mainstem discharge at Sunshine (USGS 15292780)required to initially
overtop the head portions of each Task 14 study site is referred to as
the lIinitial breaching discharge ll
•This discharge was determined by
field observations,aerial photographs,and stage/discharge relation-
ships establ ished for the site and is referenced to mean daily dis-
charges as recorded at Sunshine.
8
-
-
....
-
2.3.2.2 Controlling Breaching Discharge
As progressively higher levels of mainstem discharge overtop the head
portion of the study site the hydraul ic conditions of the site become
governed by mainstem discharge.The mainstem discharge at which the
hydraul ics become governed by mainstem discharge is referred to as the
controlling breaching discharge.
To determine the controlling breaching discharge of each study site,the
water surface el evati on versus rnai nstem di scha rge plots were eval uated
to identify changes in the relationship between stage and mainstem
discharge from base flow conditions (unbreached condition)to the
controlled breached condition.The base flow or unbreached condition is
generally characterized in these plots as having minimal change in stage
(~/SEL)over a relatively large range of mainstem discharge whereas the
controlled breached condition is generally characterized by larger
changes in stage (WSEL)over corresponding increases in mainstem dis-
charges.The initial point where stage begins to increase in proportion
to corresponding increases in mainstem discharge is the controlling
di scha rge.
Stage data is not always available at the point that the hydraulic
condition is initially controlled by mainstem discharge.Therefore,a
combined interpretation of stage data from each staff gage location in
the study site,as well as a knowledge of the initial breaching dis-
charge,are used to arrive at controlling breaching discharges.
9
2.3.3 Backwater
A generic analysis of backwater was performed for each study site
utilizing available stage and channel geometry data.For the purposes
of this report,a backwater area is defined as a water surface having
the same or very similar water surface elevation between two or more
points of measurement.Backwater was not strictly evaluated on the
basis of water velocity.
To determine backwater conditions for six study sites (Island,Mainstem
West Bank,Circular,Sauna,Sunset and Trapper Creek Side Channels)a
table of the 1984 stage data for each study site was formatted to allow
comparisons of water surface elevations over corresponding mainstem
discharges for each of the staff gage locations in the study site.
These six side channels were also included in the Task 36 modelling
study and each consisted of several stage monitoring stations allowing a
comparison of water surface elevations.The thalweg profile for the
study site was also used to estimate the linear extent of the backwater
at each study site where applicable.
2.3.4 Channel Geometry
Channel geometry data collected in support of Task 14 included both
thalweg and cross sectional profile data.
10 -
-
-
,.,...
I
2.3.4.1 Thalweg Profile
Thalweg profiles consist of a series of streambed and water surface
elevations determined for the deepest part of the stream channel,at the
time of the survey,traversing the length of the study site.~.Jater
surface elevations were determined by adding the \'later depth at the
thalweg point to the elevation surveyed for the thalweg point.Hater
was not always present at the time of the thalweg survey,and therefore
may be absent from the thalweg profile.When available,streamflow were
measured on the same date as the thalweg survey.In some instances,
streamflow measurements could not be obtained due to low flow conditions
and the flow was estimated.In either case,flows are indicated on the
thalweg profile figure.
Streambed gradients were determined for each thalweg by dividing the
difference between the thalweg elevation of the downstream portion of
the thalweg profile and the thalweg elevation of the upstream portion,
by the distance between these two points.
2.3.4.2 Cross Section Profile
Cross section profiles consist of a series of elevations perpendicular
to the stream channel,beginning from the left bank (looking upstream)
and continuing to the right bank,including all major changes in channel
topography.As such,cross section data collected in this study were
graphed as streambed elevations versus horizontal distance.
11
Cross sectional profiles are used to support modelling studies and to
assist in determining the hydraulic conditions governing the study site.
They were also used to assist in determination of the lowest channel
elevation in developing thalweg profiles.
12
-
-
-
"'"
,~
Pl,
3.0 RESULTS
3.1 Hooligan Side Channel (RM 35.2)
3.1.1 Site Description
Hooligan Side Channel is located on the east bank of the main channel of
the Susitna River at river mile 35.2 and is part of a side channel
network (Figure 1).It is approximately 1.3 mi.les in length and is
separated from the mainstem by a large vegetated island.The head of
Hooligan Side Channel connects directly to the mainstem Susitna River
whereas the mouth adjoins a side channel network.Breaching flows
occurring in Hooligan Side Channel result from overtopping of the head
directly by the main channel Susitna River.Prior to breaching,flow in
this side channel is greatly reduced although several large pools
remain.
During the 1984 open water field season the study site sele'cted for
Hooligan Side channel was located in the upper portion of the side
channel (Figure 2).Stage was monitored at one location and streamflow
was measured at this stage monitoring station (Figure 3).Channel
geometry data obtained from Hooligan Side Channel includes cross section
and thalweg profiles.A cross section profile was obtained from the
stage monitoring station and a thalweg profile was determined for that
portion of the side channel that included the study site continuing
upstream to the head of the side channel.
13
t--'
~...---
"
ffiRM34
--
River Mile ~~
Y 15,00 I
FEET ~1~
(Approximate Scale)~
"~~~~...~,,,~,.'::"L ,~"'t.~-.s...._V-bF"~~~-,,'r,...-...:"~~..
Figure 2.Overview of Hooligan (RM 35.2)and Eagle's Nest Side Channel (RM 36.2).
t--'
U1
Fi gure 3.
SUSITNA RIVER
..,....
-'.:.Jt~:"....~~t-IEAD OF~~~.~)I SIDE CH"NNEL
-';·'0
':-,~
{).Staff Gage
Transect
o 500
I I
FEET "
:.:'"....-~.(Approximate Scale)."~~,
""•.,.i/';'--'.,
...u...Mr~IIiIIPUWil:ht~:J~..:LhI"':""':"'I{.J~·
Location of Hooligan Side Channel study site (RM 35.2).
3.1.2 Stage/Discharge Relationship
In Hooligan Side Channel,measurements of water surface elevation were
obtained at one stage monitoring station located 50 feet upstream from
Transect 3 of the Task 14 study site.Recorded water surface elevations
and the correspondi ng mean da ily ma i nstem di scha rge at Sunshi ne (USGS
15292780)are presented in Attachment Table 8-1.An initial review of
this water surface elevation versus mainstem discharge plot indicated a
substantial amount of scatter in the data.A lag time analysis was used
to convert ten mean daily mainstem discharge values to instantaneous
discharges.The instantaneous discharges reflect the lag time of the
discharge from Sunshine Station (USGS 15292780)to Hooligan Side
Channel.A plot of the water surface elevations versus mainstem dis-
charges is presented in Attachment Figure E-1.
r~easurements of streamflow in Hooligan Side Channel obtained at the
stage monitoring station and the corresponding water surface elevations
and mainstem discharges at Sunshine including instantaneous time lag
discharges are presented in Attachment Table B-1.Plots of streamflow
versus water surface elevation and streamflow versus mainstem discharge
are presented in Figures 4 and 5,respectively.
3.1.3 Mainstem Breaching and Controlling Discharges
Breaching of Hooligan Side Channel is the result of overtopping of the
head directly by the mainstem Susitna River.Field observations noted
that the head of this side channel was barely breached at a mean daily
16
Qsc =101.2429 (WSEl -90}3.0380
..2 "0.99
~HOOLCGRN sloe CHANNEL TR 3
Rt1 35.2
SfGC CDS.2S 1
_\,.J------------------------......----I10
HSEL ,.90 ra:T J
Fi gure 4.Hooligan Side Channel streamflow versus
WSEL rating curve from Q site located 50
feet upstream from transect 3.
17
!:;!IiXIUGAN SlOE CHAN'£L TR :3
RM :55.2
SRiI:035.2S 1
Q =10-12.0722 Q 3.1433
sc ms
r 2 "0.99 -
-
~,
~.
"""\
100
!1fHN5T~M 0 [SCHRM;E RT 3lJ'1SH ["I:r I oooen I
IlXD
Figure 5.Hooligan Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve from Q site
located 50 feet upstream from transect 3.~:l
mainstem discharge of 23,500 cfs and dry at 22,700 cfs (Table 2).The
mainstem discharge of 23,100 cfs is the suggested initial breaching
discharge although this side channel may be initially breached at some
discharge between 22,700 cfs and 23,500 cfs.
To evaluate the influence of mainstem discharge on the hydraulics of
this side channel,a comparison of the rating curves developed for the
streamflow station was performed (Figure 6).Due to limited stage data
collected near the breach"ing flow,it was not possible to precisely
determine the point at which the channel hydraulics are governed by the
mainstem.The stage/discharge relationship depicted in Figure 6 was
developed from available field data and from the experience gained at
other sites.Using this analysis the controlling discharge was esti-
mated at 23,500 cfs.
According to the water surface elevation versus streamflow rating curve
(Figure 4),a side channel streamflow of 48.6 cfs has been estimated to
occur at a mainstem discharge of 23,500 cfs.This estimated flow ;s
slightly higher than the streamflow estimate (46.5 cfS)derived from the
streamflow versus ma i nstem di scha rge rati ng curves (Fi gure 5)at a
mainstem discharge of 23,500 cfs.Table 3 summarizes the estimates of
flow as determined from the rating curves applicable above the
controlling mainstem discharges.
19
Table 2.A compari son of 1984 observati ons used to determi ne the i ni ti a1 breachi ng
mainstem discharge at Task 14 study sites.
USGS
Mean,Daily
Discharge
Head at Sunshine Source of
Location RM Date Condition (cfs)Observation
"'"'
Hooligan 35.2 840912 Dry 22,700 Field Observation
Side Channel 840911 Ba rel y Breached 23,500 Fi el d Observation
Eagle's Nest 36.2 840926 Breached 19,000 Field Observation
Side Channel 841009 Breached 15,000 Field Observation
831025 Dry 13,900 Aerial Photograph
Kroto Slough 36.3 840829 Breached 47,600 Field Observation 1lIII".liW!
840907 Dry 25,900 Field Observation
830906 Breached 36,600 Aerial Photography
840531 Dry 31,000 Field Observation
Bear Bait 42.9 840907 Dry 25,900 Field Observation
Side Channel 840724 Breached 55,200 Field Observation
830906 Breached 36,600 Aerial Photograph
Last Chance 44.4 840912 Barely Breached 22,700 Field Observation
Side Channel 840911 Almost Breached 23,500 Field Observation
830916 Dry 22,000 Aeri a1 Photograph
Rustic Wilderness 59.5 841001 Almost Breached 18,700 Field Observation
Side Channel 840917 Barely Breached 20,400 Field Observation
830916 Breached 22,000 Aerial Photograph
Island 63.2 840915 Dry 22,300 Field Observation
Side Channel 840831 Breached 38,000 Field Observation ~
830906 Barely Breached 36,600 Aerial Photograph
Mainstem West Bank 74.4 840930 Dry 17,800 Field Observation
Side Channel 840926 Barely Breached 19,000 Field Observation
830916 Breached 22,000 Aerial Photograph
841001 Dry 1 B,700 Field Observation
Goose 2 74.8 840902 Ba re 1y Breached 32,000 Field Observation
Side Channel 840913 Dry 22,700 Field Observation j!BI\'IiI
830906 Breached 36,600 Aeri a1 Photograph
Circular 75.3 840830 Breached 40,800 Field Observation
Side Channel 840902 Dry 32,000 Field Observation
830906 Breached 36,600 Aeri al Photograph ~
930916 Dry 22,000 Aerial Photograph
Sauna 79.8 840830 Barely Breached 40,800 Field Observation
Side channel 840914 Dry 24,000 Field Observation
830906 Almost Breached 36,600 Aerial Photograph
Sucker 84.5 840914 Dry 24,000 Field Observation
Side Channel 840901 Barely Breached 35,000 Field Observation
840902 Barely Breached 32,000 Field Observation ~,
830906 Breached 36,600 Aerial Photograph
830916 Dry 22,000 Aerial Photograph
Beaver Dam 86.3 840822 Breached 54,300 Field Observation
Side Channel 840818 Dry 45,400 Field Observation
840829 Breached 47,600 Field Observation
830906 Dry 36,600 Aerial Photograph
830827 Breached 58,800 Aerial Photograph
~
20
mmiiMIPHi
21
O,c'10,12.0722 Om/·I.)J
r?=0.99 -
~
~8 Q=46.5 cfsrL I'a't'"
~1
I
10
I~
17lI~
I~
I~
I
O,c •101.2429 IWSEL _90))·0)RO
,2 •0.99 -
-
n'St:L t·!J'J f~TI
-
CHANNELHOOLIGANSIDE
GAGE 35.251
CONTROLLEDV87,500 ~0 ~11J,OOo cf,
NO EOUAT I ON DEVELOPED
/CONnOLL[Q
-.-----2J,500 5.0 ~S7,500 cfs
WSEL •ID,··nI8 01.0220 •90
+
I
I
I OJ
1~
Ig
I Ill.
rtl
I~
1°
I
I
I
I
,or [ON TROLLEDt,,----/19,000 ~0 ~23.500 c(,
WSEL=91.40 NO EnUm""DEVELOPED
-"
Figure 6.Comparison of rating curves for
Side Channel Q site located
upstream from transect 3.
22
Hooligan
50 feet
-
Table 3.A comparison of streamflow estimates determined from equations developed from
water surface elevation versus flow and flow versus mainstem discharge rating
curves for the controlling discharge.
Site
Controllinga
Discharge
Rating Curve
Flow Estimate (cfs)
at Controlling DischarfeW5ELvs5treamtow
Streamflow vs Oms
Hooligan Side Channel
Eagle's Nest Side Channel
Kroto Slough Head
Bear Bait Side Channel
Last Chance Side Channel
Rustic Wilderness Side Channel
Island Side Channel
Mainstem West Bank Side Channel
Goose 2 Side Channel
Circular Side Channel
Sauna Side Channel
Sucker Side Channel
TR2
TR5
Beaver Dam Si de Channel
Beaver Dam Slough
Sunset Side Channel
Sunrise Side Channel
Birch Creek Slough
Trapper Creek Side Channel
23,500
15,000
38,000
__d
24,000
20,400
35,000
19,600
32,000
36,000
38,000
29,000
47,600
d
32,000
36,000
__d
44,000
48.6
b
55.4
b
b
__b
43.5
5.7c
26.3
26.8
22.5
10.0
24.5
7.1
b
45.8
29.2
b
46.5
b
67.3
b
1.3
b
68.8
5.7c
21.7
26.8
19.9
10.2
12.1
6.2
b
41.4
21.1
b
a
b
c
d
The controlling discharge is the mean,daily mainstem discharge at Sunshine (USGS
15292780)required to govern the hydraulic characteristics of side channel and side
slough habitats.
Insufficient information is available to estimate streamflow at the controlling
discharge.
These stream flow values are actual measurements of discharge and are not estimated
values.
Insufficient information is available to determine the controlling discharge.
23
3.1.4 Channel Geometry
3.1.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained at
Hooligan Side Channel during a non-breaching mainstem discharge of
19,600 cfs and a side channel flow estimated to be less than 1 cfs.The
thalweg survey data are presented in Attachment Table C-1 with the
resultant thalweg profile being presented in Attachment Figure C-l.The
thalweg profile extends from the head of the side channel downstream to
350 feet below transect 1.The streambed gradient for the portion of
Hooligan Side Channel included in the thalweg profile was 8.9 feet/mile.
3.1.4.2 Cross Section Profile
Cross sectional data were obtained at the only stage monitoring station
located in Hooligan Side Channel during the 1984 open water season.The
stage monitoring station was located approximately 50 feet upstream of
transect 3 (Attachment Figure C-1).The cross sectional data are
presented in Attachment Table 0-1 with the resulting cross section
presented in Attachment Figure 0-1.
3.1.5 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-1)data,an area of backwater was not
observed to occur in the Hooligan Side Channel study site.Pooling was
24
.....
~-
observed to occur between transects 2 and 5 during non-breaching
mainstem discharges.This pooling is a result of the hydraulic control
located between transects 1 and 2.
The Hooligan Side Channel study site was located near the upper portion
of the si de channel (refer to Secti on 3.1.1 of thi s memorandum)there-
fore observations of backwater occurring at the mouth of the side
channel were not obtained in 1984.
3.2 Eagle's Nest Side Channel (RM 36.2)
3.2.1 Site Description
Eagle's Nest Side Channel is located on the east bank of the main
channel of the Susitna River at river mile 36.2.It is approximately
three miles in length and is separated from the mainstem by a network of
side channels and vegetated islands.The head and mouth of the side
channel connect directly to the mainstem Susitna River.Breaching of
this side channel results from overtopping of the head directly by the
mainstem Susitna River.During the 1984 open water field season the
study site selected for Eagle's Nest Side Channel was 496 feet in length
and \lIas located in the upper portion of the side channel (Figure 2).
Stage was monitored at one location and streamflow was measured at this
stage monitoring station (Figure 7).Channel geometry data obtained
from the side channel included cross section and thalweg profiles.A
cross section profile was obtained at the stage monitoring station and a
25
Fi gure 7.
6 Staff Gage
Transect
EB River Mlle'
0 500
I I
Location of Eagle's Nest Side Channel study
site (RM 36.2).
26
-
thalweg profile was determined for that portion of the side channel
beginning at the study site and continuing upstream to the head.
3.2.2 Stage/Discharge Relationship
Measurements of the water surface elevations obtained at the stage
monitoring station in Eagle's Nest Side Channel and the mean daily
mainstem discharge at Sunshine (USGS 15292780)corresponding to the date
of the stage measurement are presented in Attachment Table B-1.A plot
of these water surface elevations versus mainstem discharges is
presented in A~tachment Figure E-2.
In Eagle's Nest Side Channel only one measurement of streamflm'i was
obtained at the stage monitoring station (Figure 7).The streamflow
measurements obtained at this side channel and the corresponding water
surface elevations are presented in Attachment Table R-1.Due to the
lack of streamflow measurements,water surface elevation versus flow and
flow versus mainstem discharge rating curves were not developed.
3.2.3 Mainstem Breaching and Controlling Discharges
The breaching of Eagle's Nest Side Channel occurs from overtopping of
the head directly by the mainstem Susitna River.This side channel has
been observed hreached at a rna i nstern di scha rge of 15,000 cfs (Tab 1e
2).During this field observation approximately 0.5 ft of water I'Jas
observed fl owi ng over the head.A revi ew of aeri a 1 photographs of the
side channel indicated that the head was dry at a rnainstern discharge
27
of 13,600 cfs.From the field observations an initial breaching dis-
charge of 14,000 cfs has been selected for this side channel although
the head may actually be initially breached at a mainstem discharge
between 13,600 cfs and 15,000 cfs.
Stage data was not collected at mainstem discharges below 15,000 cfs.
The lack of stage data precludes an evaluation of baseflow (unbreached)
hydraulics of this side channel.From the stage data presented in the
water surface elevation versus mainstem discharge plot (Attachment
Figure E-2)it is estimated that the hydraulics of this side channel are
controlled at a mainstem discharge of approximately 15,000 cfs.
3.2.4 Channel Geometry
3.2.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained at
Eagle's ~Jest Side Channel during a breaching mainstem discharge of
19,000 cfs and a measured side channel flow of 21.2 cfs.The survey
data are presented in Attachment Table C-2 with the resultant thalweg
profile presented in ~ttachment Figure C-2.The thalweg profile
includes the study site and extends 450 feet upstream of transect 4.
The streambed gradient for the portion of Eagle's Nest Side Channel
included in the thalweg profile was 8.9 feet/mile.
28
3.2.4.2 Cross Section Profile
Cross sectional data were recorded at the only stage monitoring station
located in Eaglets Nest Side Channel.This stage monitoring station was
located on transect 2.The cross sectional data are presented in
Attachment Table 0-2 with the resulting cross section presented in
Attachment Figure 0-2.
3.2.5 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-2)data,an area of backwater was not
observed to occur in the Eagle's Nest Side Channel study site.A large
pool exists on the upper portion of the study site during non-breaching
mainstem discharges as a result of the hydraulic control located between
transects 2 and 3.As with Hooligan Side Channel,the Eagle's Nest Side
Channel study site was located in the upper portion of the side channel
(refer to section 3.2.1 of this report)therefore observations of
backwater occurring at the mouth of the side channel were not obtained
in 1984.
3.3 Kroto Slough Head (RM 36.3)
3.3.1 Site Description
Kroto 5lough is located on the west bank of the ma in channel of the
Susitna River at river mile 36.3 (Figure 8).The slough consists of a
29
Figure 8.Overview of Kroto Slough Head (RM 36.3).
30
-~,
meandering channel approximately 7.8 miles in length.The mouth of the
slough adjoins the Yentna River approximately 1.7 miles upstream from
the mouth of the Yentna River.The head of Kroto Slough connects with a
side channel of the Susitna River.Breaching flows occurring in Kroto
Slough result from overtopping of the head by the adjoining side
channel.Prior to breaching,flow in Kroto Slough is greatly reduced
and the channel consists of a series of pools.During the 1984 open
water field season the Kroto Slough study site was located in the upper
portion of the slough.
Stage was monitored at one location in Kroto Slough and streamflow was
measured at thi s stage monitori ng stati on (Fi gure 9).Channel geometry
data obtained from Kroto Slough included a cross section and thalv/eg
profile.The cross section profile was obtained at the stage monitoring
station and the thalweg was determined for that portion of the slough
from the study site upstream to the head.
3.3.2 Stage/Discharge Relationship
Measurements of water surface elevations in Kroto Slough were obtained
at the stage monitoring station which was located at transect 2 of the
study site.The recorded water surface elevations and the corresponding
mean daily mainstem discharge at Sunshine (USGS 15292780)are presented
in Attachment Table B-1.A plot of the water surface elevations versus
mainstem discharge is presented in Attachment Figure E-3.A tir:ie lag
analysis was applied to three of the mainstem discharges and the
31
W
N
Figure 9.Location of Kroto Slough Head study site (R~1 36.3).
SIDE CHANNEL OF
~SUSITNA RIVER .~.'.'.~
..,.,~<,...c-jII~.~1.~·'..'lC.~~.".
resulting instantaneous mainstem discharges,rather than the mean daily
discharges,are included in the water surface elevation versus mainstem
discharge plot.
Streamflow measurements obtained in Kroto Slough at the stage monitoring
station and corresponding water surface elevations are presented in
Attachment Table 8-1.1\plot of the streamflow and water surface
elevations was developed and is presented in Figure 10.Also streamflow
data plotted against mainstem discharge is presented in Figure 11.
3.3.3 Mainstem Breaching and Controlling Discharges
Insufficient field data is available to determine precisely the breach-
ing and controlling discharge for Kroto Slough.Recorded field obser-
vations indicated that the channel was breached at 36,600 cfs and
non-breached at 31,000 cfs (Table 2).No additional information 15
available at discharges between 31,000 and 36,600 cfs.
To estimate the controlling discharge it was assumed that the
stage/discharge relationship (Attachment Figure E-3)for the non-
breached condition was nearly horizonta1.This assumption is based on
field observations and from reviewing data collected at other side
channel study sites.A controlling discharge,of 38,000 cfs,was
estimated from the stage/discharge curve as the point of intersection of
the assumed non-breached condition and determined breached conditions of
the stage/discharge relationship.It is also estimated that the initial
33
!:!KROrO SULGH f-£AiJ TR 2
RM 36.3
Gf{;(036.3S 1
0sl ..10-1.5325 (WSEl -85)4.8552
r 2 ..0.99
WSEL (..~rrzTI to
Figure 10.Kroto 510ugh Head streamflow versus WSEL
rating curve at transect 2 Q Site.
34
~KROrO SUl..GH t-£AO TR 2
RM 36.J
~E 036.351
Q =1015.5568 Q 3.7960
51 m5
r 2
u 0.99
-100
Mf'lINST~11 DIXHflm;[fiT ~lJII~I'1It-t:(lOOO(;n1
tOlJl
Fi gure 11.Kroto Slough Head streamflow versus
mainstem discharge (cfs)at Sunshine
Station (USGS 15292780)rating curve at
transect 2 Q site.
35
breaching discharge should occur at approximately 2,000 cfs below the
controlling discharge,or at 36,000 cfs.
The rating curves developed for Kroto Slough were compared to evaluate
the influence of mainstem discharge on the hydraulic condition of the
slough (Figure 12)Using the equation developed for the water surface
elevation versus streamflow rating curve at transect 2,a streamflow of
56.6 cfs was estimated to occur at the controlling discharge of 38,000
cfs.This streamflow estimate is less than the flow estimate of 67.3
cfs which was determined using the flow versus mainstem discharge rating
curve.
3.3.4 Channel Geometry
3.3.4.1 Thalweg Profile
Survey data for the development of a thalweg profile It/ere obtaineC at
Kroto Slough during a non-breaching mainstem discharge of 19,600 cfs and
an estimated slough flow of less than 1 cfs.The survey data are
presented in Attachment Table C-3,wi th the resul tant tha 1weg profi 1e
presented in Attachment Figure C-3.The thalweg profile includes the
study site and the portion of the slough extending from the head down-
stream 300 feet below transect 1.The streambed gradient for the
portion of Kroto Slough included in the thalweg profile was 7.0
feet/mile.
36
0,1 •JOIS.SS68 0,.,3.1960
,2 _0.99
Q'1 •10-J.5~?S (WSEl _8S14.8SS2
,I .0.99
I
r.
~
~
'J ..
I.~
Q=67.3cfs
t
I "'17;
,g
o100-
I~
1°
I
0:56.6 cfs
t
I
I
I~
I~
I~
I~
'co""dN~1("Ot }C..,,..~"'T ~~"It<(IOOOC~1-"
"-11f11 CQlifAOllfO
19.~OO ~Q ~lk.OM ",
_0 [OUHIO.NV[lOPEO
HEAD TR 2KROTOSLOUGH
GAGE 36.3SI
IOJ]-.
CONfROlLEO
38.000 ~0 ~93.300 cf\
'.is£l "lf1-3.IO~~O·826!\•AS
t
I
I
IWSEL:89.75
-+---\-:-'
...n
I~
,,1"'1"'~1~:':Ol,,;··n·r.(""~lJ<'''Pt::1~l)ocr"l
Figure 12.Comparison of rating curves for Kroto
Slough Head at transect 2 Q Site.
37.
3.3.4.2 Cross Section Profile
Cross sectional data were recorded at the only stage monitoring station
located in Kroto Slough.This stage monitoring station was located on
transect 2.The cross sectional data are presented in Attachment Table
0-3 with the resulting cross section presented in Attachment Figure 0-3.
3.3.5 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure 0-3)data,an area of backwater was not
observed to occur in the Kroto Slough Head study site.The Kroto Slough
Head study site was located near the head of the slough which is approx-
imately 7.8 miles in length (refer to Section 3.3 of this report).
Field observations were limited to the study site therefore observations
of backwater occurring in the area of the slough mouth were not obtained
in 1984.
3.4 Rolly Creek (RM 39.0)
3.4.1 Site Description
Rolly Creek is a small tributary located on the east bank of the main
channel of the Susitna River at river mile 39.0.This tributary is fed
by an unnamed lake and flows westerly 6.4 miles before emptying into the
Susitna River.Rolly Creek is a slow,meandering stream that drains a
large low lying area.
38
-
During the 1984 open water field season the study site selected for
Rolly Creek was located approximately 0.7 miles upstream from its mouth
(Figure 13).
Stage was monitored at one location in Rolly Creek and streamflow was
measured at this stage monitoring station (Figure 14).Channel geometry
data obtained at this study site included a cross sectional profile at
the stage monitoring station and a thalweg profile developed for the
portion of the channel that included the study site.
3.4.2 Stage/Discharge Relationship
Measurements of water surface elevation and streamflow obtained at the
stage monitoring station which was located on transect 2 in Rolly Creek
and the corresponding mean daily mainstem discharge (USGS 15292780)are
presented in Attachment Table B-1.Because these water surface ele-
vations were independent of mainstem discharge,water surface elevations
versus mainstem discharge plots were not developed.A water surface
elevation versus flow rating curve was also not developed due to the
extensive backwater influence.
3.4.3 Channel Geometry
3.4.3.1 Thalweg Profile
Survey data for the development of a tha hJeg profi 1e were obta i ned at
Rolly Creek during a mainstem discharge of 17 ,700 cfs and a measured
39
Scale)
Figure 13.
E9 Mile
?1000
L..._-===-....J!
FEET
(Approximate
Overview of Rolly Creek (RM 39.0).
40
Figure 14.Location of Rolly
41
Creek study site
tributary streamflow of 10.9 cfs.The survey data are presented in
Attachment Table C-4 with the resultant thalweg profile presented in
Attachment Figure C-4.The thalweg profile extends from transect 6 of
the study site downstream approximately 75 feet below transect 1.The
streambed gradient for the portion of the tributary included in the
thalweg profile was 5.5 feet/mile.
3.4.3.2 Cross Section Profile
Cross section data were recorded at the only stage monitoring station
located in Rolly Creek.This stage monitoring station was located on
transect 2 (Figure 14).The cross sectional data are presented in
Attachment Table 0-4 with the resulting cross section presented in
Attachment Figure 0-4.
3.4.4 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-4)data a backwater area was observed to
extend at least 3,750 feet from the tributary mouth at a mainstem
discharge of 52,500 cfs.This backwater influence was determined from a
revi ew of the streamflow measurements obta i ned at transect 2 and pre-
sented in Attachment Table B-1.Field observations have indicated that
backwater occurs in Rolly Creek mouth area throughout medium and high
mainstem discharges although insufficient information is available to
precisely determine the extent of backwater for this tributary.
42
3.5 Bear Bait Side Channel (RM 42.9)
3.5.1 Site Description
Bear Bait Side Channel is located on the west bank of the main channel
of the Susitna River at river mile 42.9.It is approximately three
miles in length and empties into the Deshka River approximately 0.6
miles upstream from the mouth of the Deshka River.The head of Bear
Bait Side Channel connects directly to the main channel Susitna River.
Breaching occurs when the head is overtopped by the main channel Susitna
River.Prior to breaching,the upper portion of the side channel
consists of a series of isolated pools.
During the 1984 open water field season the study site selected for Bear
Bait Side Channel was located in the upper portion of the side channel
(Figure 15).Stage was monitored at one location and streamflow was
measured at this stage monitoring station (Figure 16).Channel geometry
data obtained from Bear Bait Side Channel included a cross section and
thalweg profile.A cross section prof;le was obtained at the stage
monitoring station and a thalweg profile was developed for that portion
of the side channel that included the study area continuing upstream to
the head of the side channel.
3.5.2 Stage/Discharge Relationship
Measurements of water surface elevation were obtained in Bear Bait Side
Channel at the stage monitoring station located on transect 2.Recorded
43
Figure 15.Overview of Bear Bait Side Channel (RM 42.9).
44
FEET
(Approximate Scale)
6 Staff Gage
Transect
EB River Mile
200
I
o
I
"C"f:l.'·r,.'''I'".'-<;,r 'cJI.:ifI"'\oIIiI.....,..
-~,.".4.'iJy,;:;",. .'i......._....
Figure 16.Location of Bear Bait Side Channel study
site (RM 42.9).
45
water surface elevations along with the mean daily mainstem discharge at
Sunshine (USGS 15292780)corresponding to the date of the stage measure-
ment are presented in Attachment Table B-1.Three water surface
elevations recorded on August 13,and 26,1984 were evaluated using a
time lag analysis.The resulting instantaneous mainstem discharges were
substituted for the mean daily mainstem discharges.Plots of these
water surface elevations versus mainstem discharge are presented in
Attachment Figure E-4.
Measurements of streamflow recorded in Bear Bait Side Channel at the
stage monitoring station and the corresponding water surface elevations
are presented in Attachment Table B-1.Plots of water surface elevation
versus streamflow and mainstem discharge versus streamflow are presented
in Figures 17 and 18.
3.5.3 Mainstem Breaching and Controlling Discharges
Breaching of Bear Bait Side Channel occurs by overtopping of the side
channel head directly by the mainstem Susitna River.Based on field
observations and aerial photography the head of the side channel was
breached at 36,600 cfs and non-breached at 25,900 cfs (Table 2).No
additional information from the site is available for mainstem
discharges ranging between 25,900 cfs and 36,600 cfs.Insufficient
information is available to determine the initial breaching discharge
for this side channel.
46
t;BEAR ~:1 5 1(£CH~EL TR 2
RM 42.9
GAGE 0'\2.951
NO EQUATION DEVELOPED
10-2.5560 (WSEL _87)6.7570
°sc '"
r 2 '"0.99
-,10
Figure 17.Bear Bait Side Channel streamflow versus
WSEl rating curve at transect 2 Q Site.
47
~BEAR ~It SIOC CH~EL TR :2
RM i2.9
r;R;E (H2.95]
:z
Cl
..JSt.._
Clw
~
tI"la:::
~
NO EQUATION DEVELOPED
L .--_--Q =10-19.7002 Q 4.6565
--sc ms
r 2 =0.99
100
M~[N~jCM OrSCHnRGE RT ~UN5H[NC fIOOOCfS)\()(D
Figure 18.Bear Bait Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site.
48
Limited stage data is available to evaluate the controlling discharge.
A single stage observation was obtained for the non-breached conditions
(Attachment Table B-1).This low flow stage observation suggests that
substantial scour of the channel has occurred at the site as a result of
the August 26 high flow event.Due to this scour this stage observation
is not representative of base flow conditions when compared to the stage
observations obtained for the breached conditions.It is because of a
lack of information defining the breached discharge and baseflow con-
ditions for this side channel a controlling discharge for Bear Bait Side
Channel has not been determined.A comparison of the rating curves for
the streamflow station was not developed.
3.5.4 Channel Geometry
3.5.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained at
Bear Bait Side Channel during a non-breaching mainstem discharge of
18,300 cfs and an estimated side channel streamflow of less than 1 cfs.
The survey data are presented in Attachment Table C-5 with the resultant
thalweg profile presented in Attachment Figure C-5.The thalweg profile
extends from the head of the side channel downstream to approximately 50
feet below transect 1.The streambed gradient for the portion of the
side channel included in the thalweg profile was 1.9 feet/mile.
49
3.5.4.2 Cross Section Profile
Cross section data were recorded at the only stage monitoring station
located in Bear Bait Side Channel. This stage monitoring station was
located on transect 2 (Figure 16).The cross sectional data are
presented in Attachment Table D-5 with the resulting cross section
presented in Attachment Figure D-5.
3.5.5 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-5)data a backwater area was observed not
to occur in the Bear Bait Side Channel study site.The Bear Bait Side
Channel study site is located in the upper portion of the side channel
(see Section 3.5.1 of this report)therefore field observations of
backwater occurring in the vicinity of the side channel mouth were not
obtained in 1984.
3.6 Last Chance Side Channel (RM 44.4)
3.6.1 Site Description
Last Chance Side Channel is located in the Delta Island complex on the
east bank of the west channel of the Susitna River at river mile 44.4.
The side channel is approximately 1.1 miles in length and is separated
from the mainstem by a large vegetated island.The head of Last Chance
50
Side Channel adjoins a small side channel which is connected to the
mainstem Susitna River.Last Chance Side Channel empties directly into
the mainstem Susitna River.Breaching flows in Last Chance Side Channel
result from overtopping of the head by the adjoining small side channel.
Prior to breaching flow is minimal with only a few pools remaining in
the upper portion of the channel.
During the 1984 open water field season the study site selected at Last
Chance Side Channel was located in the upper portion of the side channel
(Fi gure 19).Stage was monitored at one 1ocati on and streamfl ow was
measured at this stage monitoring station (Figure 20).Channel geometry
data obtained at Last Chance Side Channel include a cross section
profile and a thalweg profile.A cross section profile was obtained for
the stage monitoring station and the thalweg profile was determine for
that portion of the side channel that included the study site and
continued upstream to the head of the side channel.
3.6.2 Stage/Discharge Relationship
Measurements of water surface elevation obtained at the stage monitoring
stati on at Last Chance Si de Channel and the mean,da ily rna i nstern di s-
charges at Sunshine (USGS 15292780)corresponding to the date of the
stage measurement are presented in Attachment Table B-l.Five stage
measurements recorded on Jul y 26,August 25,or August 27,1984,were
evaluated using a lag time analysis.For each of the observations,the
lag time instantaneous mainstem discharge was substituted for the mean
51
ffiRM44
..
.'.-i
'y (
<vfJ:'~fJ:'..1 v"
,~~.~
...;j'O
'0
.I
'/'
/
.'
;•.~ll-~f';;'~-r ~.:.-r.:\'?"'.()'":'~I<'r~'1 .",";.~:;.\..-;;.:i~~l '.t:~.:.'ii,'~i";~.t'<)\,'.~,~.'f ",.~~•••~'J:\.'.,......c~{,i.r.r..~~~l'·~:':-J ';..~l~..,.:.,::~.-::~'~.,.,•.Jl'::nr'l'f.~l·~,1\
•.•~.•'-""J<,~...~''''1').,~.~.a.'£"'I"·,"<'-f..'l.\'.•,":,,,,..'i'1.!t~~>~",~",t :'.'~•.".~••,,+~'.....~('"-''''',.~,••~.'...."'.'.,.I ~.~.....,..>l!~:th{~~,8.l~~~~(.~ii~·~'·
.-I...Y:."~~•;....::sJ.',r\. '~';.'....,g.I ..";~'"~'.oi:~;......~~J',';,~~~:~~~f~!;;';.{t~:;.~"'::.'"1,.•,,~'~"1"-:;;'.},-,,;.",'~.,,1 "-::'0 ••'r.•.'."f"...'.:--;~r(;""l~,,·~fi!.;.l..i:·,.'
_•.,Y'J·':".t;1-1~R.•.,,<,1'1'..;:"··
""..,~r.'!1""":'\l·~\~,.~.t'·-tfri~,.y;.{.~..,).".......,".r;,.',"".'.'I-~"'"~~'~~:,i·,:;~·!:··,
.(:;~'1 )\..,';l~,
~~;'.J~i'':..~~-;;,:;,_.~
:j"$:-~J:?
'd'<.?,"":!::,...~'
LTI
N
Figure 19.Overview of Last Chance Side Channel (RM 44.4).
SIDE
"_.:r,'':v..'{~I ,><.~."./
I
",
Figure 20.Location of Last Chance Side Channel study
site (RM 44.4).
53
daily discharge.A plot of these water surface elevations versus
mainstem discharge are presented in Attachment Figure E-5.
Measurements of streamflow obtained at the stage monitoring station in
Last Chance Side Channel and the corresponding water surface elevations
are presented in Attachment Table B-1.A plot of these streamflows and
the corresponding water surface elevations are presented in Figure
21.A plot of streamflow and mainstem discharge was also developed and
is presented in Figure 22.
3.6.3 Mainstem Breachinq and Controlling Discharges
Breaching of Last Chance Side Channel results from overtopping of the
head by an adjoining side channel and not directly by the mainstem
Susitna River.A field observation recorded on September 12 indicated
that the head of the side channel was "barely"breached at a mean daily
mainstem discharge of 22,700 cfs (Table 2).On September 11 a field
observation noted that at 23,500 cfs the head was "almost.breached"
(Table 2).The discrepancy between the two field observations (22,700
cfs and 23,500 cfs)is probably because these values are mean daily
discharge values and not instantaneous values.Because the time of day
was not noted when these two field observations were recorded,the
instantaneous discharge occurring during these observations cannot be
determined.Since the hydrograph of Sunshine Station was decl inin£en
September 11 (mean daily discharge =23,500 cfs)and stabilizing on
September 12 (mean da i 1y di scha rge =22,700 cfs),the September 12
54
-
~LASr DiAr<:E SIDE (}flNr{l.rR 2
RM 11:.'t
G.CfGE 01'1.is I
Q ..10-.6390 (WSEL _90)4.5323sc
r 2 ..0.99
a
r.?
c..J
"J:
Cl-t:~
Cl
,W
S
ttla:::-~
W~~L.[..90 ra::11 10
Figure 21.Last Chance Side Channel streamflow versus
WSEL rating curve at transect 2 Q Site.
55
~LASr O1AI'CE SlOE Ct-flNt£L rR 2
Rl"I ii."\
Gffi::QH.~S 1
-
Q-=10-24.7431 Q 5.6757
sc ms
r 2 =0.99
Figure 22.
ICC
MfHN51C!1 0 [5CHP'lft'Gt I'li 5LMH [1'£(l oooen I
last Chance Si de Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site.
56
-
observation is considered to be the most reliable.The suggested
initial breaching discharge is therefore 22,700 cfs.An aerial photo-
graph shows that Last Chance Side Channel was dry at a mainstem dis-
charge of 22,000 cfs.
The stage data obtained at Last Chance Side Channel is 1imited to
observati ons correspondi ng to rna i nstem di scha rges of 48,100 cfs and
greater.Because no stage data was recorded during unbreached periods,
the controlling breaching discharge cannot be precisely determined.
However,experience at other sites indicates that the controlling
discharge for a site is generally 1,000 to 2,000 cfs greater than its
breaching di scha rge.The controll ing di scha rge for Last Chance Si de
Channel is estimated at approximately 24,000 cfs.
A comparison of the rating curves developed for the streamflow station
(transect 2)was not possible due to insufficient stage data.This lack
of stage data also prevented the development of a regression equation to
estimate the water surface elevation corresponding to the controll ing
discharge.
3.6.4 Channel Geometry
3.6.4.1 Thalweg Profile
Survey data for the development of a thah/eg profile were obtained at
Last Chance Side Channel during a non-breaching mainstem discharge of
18,300 cfs and an estimated side channel streamflow of less than 1 crs.
57
The survey data are presented in Attachment Table C-6 with the resultant
thalweg profile presented in Attachment Figure C-6.The thalweg profile
extends from the head of the side channel and continues dO\'Jnstream
approximately 60 feet below transect 1.The streambed gradient for the
portion of the side channel included in the thah/eg profile was 10.1
feet/mil e.
3.6.4.2 Cross Section Profile
Cross section data were recorded at the only stage monitoring station
located in Last Chance Side Channel.This stage monitoring station was
located on transect 2.The cross sectional data are presented in
Attachment Table 0-6 with the resulting cross section presented in
Attachment Figure D-6.
3.6.5 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-6)data,a backwater area was observed not
to occur in the Last Chance Side Channel study site.As v/ith several
side channel study sites,the study site for Last Chance Side Channel
was located in the upper portion of the side channel (see Section 3.6.1
of this report).Field observations were limited to the study site of
this side channel,therefore,backwater observations occurring in the
side channel mouth area were not obtained in 1984.
58
,.-
3.7 Rustic Wilderness Side Channel (RM 59.5)
3.7.1 Site Description
Rustic Wilderness Side Channel is located on the east bank of the main
channel of the Susitna River at river mile 59.5.It is approximately
7.2 miles in length and is separated from the mainstem by a complex
network of islands and channels.The head of Rustic Wilderness Side
Channel connects to a side channel of the mainstem Susitna River.The
mouth connects with the east channel of the Susitna River at the upper
end of the Delta Islands.Breaching flows occurring in Rustic
Wilderness Side Channel result from overtopping of the head by the
adjoining side channel.Prior to breaching,the channel is
substantially dewatered and flow is greatly reduced.During the 1984
open water field season the study site selected for Rustic ~~ilderness
Side Channel was located in the upper portion of the side channel
(Fi gure 23).Stage was monitored at one 1ocati on and stream flow was
measured at this stage monitoring station (Figure 24).Channel geometry
data obtained from Rustic Wilderness Side Channel included cross section
and thalweg profiles.The cross section profile was obtained from the
stage monitoring station and the thalweg profile was determined for that
portion of the side channel that included the study site continuing
upstream to the head of the side channel.
3.7.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at the stage monitor-
ing station (transect 4)in Rustic ~Jilderness Side Channel and the
59
~,."
EB River Mile
.~
....
-
1500
J
E9RM60
o
I
,!,-"..._~_.;.-,
teRM 59
Figure 23.Overview of Rustic Wilderness Side Channel
(RM 59.5).
60
""'"
.-
,....
.~
_'.~'...4~.~:
..'."
6 Staff Gage
---Transect
o 500
!I
Figure 24.Location of Rustic Wilderness Side Channel
study site (RM 59.5).
61
corresponding mean daily mainstem discharge at Sunshine (USGS 15292780)
are presented in Attachment Table B-1.A water surface elevation
obtained on August 12 was evaluated using a time lag analysis resulting
in a corresponding instantaneous mainstem discharge.A plot of these
water surface elevations versus mainstem discharges are presented in
Attachment Figure E-6.
Measurements of streamflow obtained at the stage monitoring site and the
corresponding water surface elevations and mainstem discharges are
presented in Attachment Table B-1.A rating curve of streamflows versus
water surface elevations was developed and is presented in Figure 25.
The streamflow data was also plotted against mean daily mainstem dis-
charge as a rating curve (Figure 26).
3.7.3 Mainstem Breaching and Controlling Discharges
At mean daily mainstem discharges of 20,400 cfs and 18,700 cfs the head
of Rusti c ~'Jil derness Si de Channel has been observed as t1barelyll breached
and l1almost"breached,respectively (Table 2).The mean daily discharge
of 20,400 cfs was within 100 cfs of the instantaneous value and the mean
daily discharge of 18,700 cfs viaS equal to the instantaneous value.
Based on these field observations an initial breaching discharge of
19,000 cfs was chosen.
From a review of the water surface elevation versus mainstem discharge
rating curve presented in Attachment Figure E-6 the hydraulics of this
62
-
-
..,.
-
-
~RL.tSnc WB..OER!'£SS SIDE CHfl'o.lNEL TR '\
RM 59.5
GFGE 059.SS 1
//0 EQUATION DEVELOPED
~
o •10-6·51"("SEL •'0112.'41~;f"
sc
r 2 ..0.99
-I 10
Fi gure 25 ..Rustic Wilderness Side Channel streamflow
versus HSEL rati ng curve at transect 4 Q
Site.
63
-~---,---------------------------
~RUSTrC WrLDERf\£SS SlOE:CHfN'U:L TR 4
RI'1 59.5
SffiE:059.SS 1
-
~o EQUATIO~DEVELOPED
Q =10-9.2365 Q 2.5382scms
r 2 =0.97 "'"
-
.100
J'1fUNS!!:M OrSCHRRGE RT S~H[f'.f:(IOOOCF5J 10lXl
Figure 26.Rust i c Wil derness Si de Channel streamfl ow
versus mainstem discharge at Sunshine
Station (USGS 15292780)rating curve at
transect 4 Q Site.
64
~,
-
side channel appear to be controlled at mainstem discharge of 20,400
cfs.
The lack of data between 20,400 cfs and 38,000 cfs precludes the ability
to develop a compari son of rati ng curves for Rusti c Wil derness Si de
Channel.
3.7.4 Channel Geometry
3.7.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained at
Rustic Wilderness Side Channel during a non-breaching mainstem discharge
of 17,700 cfs and an estimated side channel streamflow of less than 1
cfs.The survey data are presented in Attachment Table C-7 with the
resultant thalweg profile presented in Attachment Figure C-7.The
thalweg profile extends from the head of the side channel and continues
downstream apprOXimately 650 feet below transect 1.The streambed
gradient for the portion of the side channel included in the thahveg
profile was 8.7 feet/mile.
3.7.4.2 Cross Section Profile
Cross section data were recorded at the only stage monitoring station
located in Rustic Wilderness Side Channel.This stage monitoring
station was located in transect 4.The cross sectional data are
65
presented in Attachment Table D-7 with the resulting cross section
presented in Attachment Figure D-7.
3.7.5 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-7)data,a backwater area was observed not
to occur in the Rustic Wilderness Side Channel study site.The study
site was limited to the upper portion of the side channel (see Section
3.7 of thi s report)and observa ti ons of backwater at the side channel
mouth were not obtained in 1984.
3.8 Caswell Creek (RM 63.0)
3.8.1 Site Description
Caswell Creek is a small tributary approximately six miles in length
which drains Caswell Lake.Caswell Creek empties into an eastern
channel of the Susitna River at river mile 63.0.Except during periods
of low streamflow conditions a backwater area exists in the lower
portion of the creek.The study area in Caswell Creek during the 1984
open water field season was located in the lower portion of the creek
approximately 700 feet upstream from the mouth (Figure 27).
At Caswell Creek stage and streamflow were monitored at one location
(Figure 28).Channel geometry data obtained from Caswell Creek included
a cross section profile obtained at the stage monitoring station and a
66
-
.....
Fi gure 27.
EB River Mile
Overview of Caswell Creek (RM 63.0)and
Island Side Channel (RM 63.2).
67
-~
Q:'
Ut.·,
;:>-ce
o:r
Z
I--OJ
.:;)
OJ
Figure 28.
[:;,Staff Gage
Transect
o 250 ~
!fEET I ~.,.,
(Approximate Scale).,:':,.t~,~~~?~'~~.~;~~:~;!~~
Location of Caswell Creek study site (RM 63.0)
68
~I
~.
-
-
-
thalweg profile.The thalweg profile was developed for that portion of
the channel which included the study site and continued downstream to
the mouth of the creek.
3.8.2 Stage/Discharge Relationship
Measurements of water surface elevation in Caswell Creek were obtained
at the stage monitoring station located on transect 4 of the study site
(Attachment Tabl e B-1).Measurements of streamflow obtained at the
stage monitoring station,the corresponding water surface elevation,and
the corresponding mainstem discharge (USGS 15292780)are presented in
Attachment Table B-1.A plot of streamflow and water surface elevations
was not developed due to backwater conditions caused by mainstem Susitna
River discharge.
3.8.3 Channel Geometry
3.8.3.1 Thalweg Profile
Survey data for the development of a thahleg profile were obtained at
Caswell Creek during a main~tem discharge of 14,900 cfs and a measured
tributary streamflow of 27.5 cfs.The survey data for the thalweg
profile are presented in Attachment Table C-8 with the resultant thalweg
profile presented in Attachment Figure C-8.The thalweg profile
includes the Caswell Creek study site extending downstream 775 feet
below transect 1 and upstream approximately 300 feet above transect 7.
69
The streambed gradient for the portion of the tributary included in the
thalweg profile is 10.8 feet/mile.
3.8.3.2 Cross Section Profile
Cross section data were recorded at the only stage monitoring station
located in Caswell Creek.This stage monitoring station was located on
transect 4.The cross sectional data are presented in Attachment Table
0-8 with the resultant cross section presented in Attachment Figure 0-8.
3.8.4 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-8)data,mainstem discharge has been found
to have a significant influence on backwater in Caswell Creek.The
streamflow measurements obtained from Caswell Creek indicate backwater
extended at least to transect 4,approximately 1,026 feet,at a mainstem
discharge of 55,100 cfs.Although field observations indicate backwater
occurs in Caswell Creek during medium and high mainstem discharge
insufficient data is available to precisely determine the extent of
backwater over the 1984 range of mainstem discharges.
3.9 Island Side Channel (RM 63.2)
3.9.1 Site Description
Island Side Channel is located bet\IJeen the main channel of the Susitna
River and a large side channel that parallels the eastern bank at river
70
-
....
-
~I
-
-
mile 63.2.This side channel is located downstream of a braided,vege-
tated floodplain and is not directly connected to the main channel
Susitna River.It is approximately 0.7 miles in length with both the
mouth and head portions adjoining side channel networks.Breaching
flows in this side channel result from overtopping of the head by an
adjoining larger side channel.Prior to breaching,side channel flow is
greatly reduced with a series of pools remaining.
During the 1984 open water field season,the study site selected for
Island Side Channel was located in the lower portion of the side channel
(Figure 27).Stage was monitored at eight locations in the side channel
with streamflow being measured at two of these stage monitoring
stations (Figure 29).Cross section survey data were obtained at each
stage monitoring station.Survey data for the development of a thalweg
profile were collected for that portion of the side channel beginning at
the confluence of the adjoining side channel and terminating at the
first hydraulic control above the study site.
3.9.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at each stage moni-
toring station located in Island Side Channel along with the mean daily
mainstem discharges at Sunshine (USGS 15292780)corresponding to the
date of the stage measurements are presented in Attachment Table B-l.
Plots of these water surface elevations versus mainstem discharges are
presented in Attachment Figures E-7 to E-14.
71
"'--J
N
...-"~,~.,
"""!fJ i,
<-',1
(J
J.u~C'IJ
Figure 29.Location of Island Side Channel study site (RM 63.2).
J J J J )J J j J )J ~I )),I
.;
IVleasurements of streamflow were obta i ned at the stage moni tori ng
stations located on modelling transects 1 and 6.These measurements of
streamflow and the corresponding water surface elevations and mainstem
discharges (USGS 15292780)are presented in Attachment Table B-1.Plots
of these streamflows versus water surface elevations developed as rating
curves are presented in Figures 30 and 31.In addition,the streamflow
data was plotted against mean daily mainstem discharge as rating curves
(Figures 32 and 33).
3.9.3 Mainstem Breaching and Controlling Discharges
Breaching of Island Side Channel is the result of overtopping of the
head by an adjoining side channel.Based on aerial photograph interpre-
tation (Table 2),the lowest mainstem discharge that has been observed
to breach this side channel is 36,600 cfs (USGS 15292780).
Based on a review of Attachment Figure E-14,it has been determined that
at mainstem discharges exceeding 35,000 cfs the hydraulics within this
side channel are directly controlled by mainstem discharge.Follo~ling
35,000 cfs the water surface elevation at transect 6 increases dramat-
ically with corresponding increases in mainstem discharge.The control-
1i ng di scharge of 35,000 cfs is lower than the observed breach;ng
discharge of 36,600 cfs as determined from aerial photography indicating
that this side channel initially breaches below a mainstem discharge of
35,000 cfs.Insufficient field data is available to determine precisely
the initial breaching discharge for Island Side Channel.The initial
73
~ISLANC SlOE QJf;NNEL TR 1 (Q SITE)
RM 63.2
GFlGE:OSJ.2S 1
10-0.2225 (WSEL _891 4.3246Qsc=
r 2 '!0.82
"
WSEL (+0'3 rf1:T)
La
~,
~I
-
Fi gure 30.Island Side Channel streamflow versus WSEL
rating curve at transect 1 Q Site.
74 -
~ISLAI'(l SlOE CHf\~mCL TR 6 (Q SITE)
RI'1 63.2
GrC£06J.2SS
Q a 10.0.2435 (WSEL _89)4.2232sc
r 2 a 0.99
-,
Fi gure 31.
W5EL (+6'3 rEf!)
Island Side Channel streamflow versus WSEL
rating curve at transect 6 Q Site.
75
10
~lSI..ANIJ SUE l>f!NNEL.TR 1 (Q SITE)
~63.2
GFGt 063.2S 1
•10-16.2201 Q 3.9630Qscms
r 2 '"0.89
-
-
-
-
t:lOMRINSiEMOISCH~~flT SUNS~r~(lOoaers)IOCD
-versus
(USGS
1 Q
Island Side Channel streamflow
mainstem discharge at Sunshine
15292780)rating curve at transect
Site.
Figure 32.
~,
76
!:!tSLA~5ICE CHlNNEl.tR 6 (Q 5l1£)
RI'J 63.2
ER;E CIi'3.256
.....
So'"
13
::z:c
t::§
0
~;r;
err
~
-15.6019 n 3.8379Qsca10~s
1"2 a 0.94
!
I
::
tOCD
--,
Fi gure 33.Island Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 6
Q Site.
77
breaching discharge for this side channel has been estimated as occur-
ring approximately 1,000 cfs below the controlling discharge,or at
34,000 cfs.To evaluate the influence mainstem discharge has on the
hydraulic conditions of this side channel,a comparison of the rating
curves for transect 6 (Figure 34)was performed.Transect 6 is one of
the two streamflow stations located at this side channel with the other
being transect 1.Transect 6 was used for this comparison as the stage
versus streamflow relationship is better defined for this transect than
it is at transect 1 under both the breached and unbreached conditions.
A side channel streamflow of 43.5 cfs has been estimated to occur at the
controlling discharge of 35,000 cfs at transect 6 as determined from the
stage versus streamflow rating curve (Figure 31).This estimated flow
is lower than the streamflow estimate derived from the Transect 6
streamflow versus mainstem discharge rating curve (68.8 cfs)presented
in Figure 33 for the mainstem discharge of 35,000 cfs.A simiiar
comparison between flow estimates at transect 1 shows the stage versus
streamflow rating curve to yield 47.3 cfs and the streamflow versus
mainstem discharge rating to yield 61.4 cfs.Measurements of streamflow
in the 30,000-41,000 cfs range of mainstem discharge are necessary to
validate this relationship.
Table 3 summarizes the estimates of flow as determined from the rating
curves for controlling mainstem discharges.
78
-
~
,-.
"~~
"<=.::~
::l
~
'"!!
.....,
::
0=68.8 cfs--,
I
I~
Ig
I~
I~
1
0
I
Os<•10.0.2435 (WSEL •89)4.2232
,2.0.99
Q =43.5 cfs
t
I
1m
I'-
Ie;;
I~
I~
I~
-"
~
!/CONTRIllLEO
o I 35,000 ~Q ~66,100 cf>g WSEL •10-,·4954 0 1•0873 +89
i =91.79 ://.0.~8=WSE~
~"NOT CONTROLLED
17.800 ~Q ~35,000 cf,
WSEL •10.0.0191 OO.1l4l +89
,~•0.99
'0lIl
_,:'-------.---...L........--,......-....-.......-...........-.-
ISLAND SIDE CHANNEL TR6
GAGE 63.256
ira---...-....,.-,...........,....,.......'::!'oo:----,...........,,.............-.........,..,...,Olll
N~IN:lTCN Ot";N"'lGt "T 'lXll1lt.C ClOOOcr5l
Figure 34.Comparison of rating curves for Island Side
Channel transect 6 Q Site.
79
3.9.4 Channel Geometry
3.9.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained at
Island Side Channel during a non-breaching mainstem discharge of 17,800
cfs when the side channel flow was estimated to be less than 1.0 cfs.
The survey data are presented in Attachment Table C-9 with the resultant
thalweg profile being presented in Attachment Figure C-9.The thal'tJeg
profile extends from the mouth of the side channel to a point
approximately 100 feet beyond the first hydraul ic control upstream of
the study site,approximately 1,500 feet upstream of the mouth of the
side channel.Based on the thalweg profile,the gradient within the
thalweg profile is 15.6 feet/mile.
3.9.4.2 Cross Section Profile
Cross sectional data were recorded at each of the eight transects
located in Island Side Channel during the 1984 open water season.The
cross sectional data are presented in Attachment Table 0-9 to 0-16 with
the resulti ng cross secti on profi 1es presented in Attachment Figures
0-9 to 0-16.
3.9.5 Backwater
Based on a comparison of available 1984 stage (Table 4)and channel
geometry data (fl.ttachment Figure C-9),an area of backwater extends
80
-.
""'"
-
]1 )..]))1 1 )1 1 )
Table 4.A comparison of water surface elevations from Task 14 staff gages located within Island Side
Cl1anne 1.
Mainstem
Date TR 1 TR 1A TR 2 TR 3 TR 4 TR 4A TR 5 TR 6 Discha.!:..9.e
840930 90.86 90.93 90.88 91.23 91.56 91.56 91.57 91.54 17,800
840927 ------------------91.57 91.56 18,300
840915 -------------------91.59 91.62 22,300
840919 ---91.37 91.33 ---------------28,400
840901 ---91.69 91.68 91.70 91.71 91.77 91.73 91.75 35,000
840831 91.90 91.93 91.89 91.90 91.90 91.94 91.94 91.95 38,000
840719 93.13 ------------------93.36 51,600
co 840712 93.33 93.67 54,100f--l ------------------
840725 93.33 93.46 93.41 93.44 93.62 93.52 93.56 93.55 56,100
840725 93.54 93.56 93.52 93.48 ---93.66 ---93.61 56,100
840725 ------ ---
93.55 ---------93.70 56,100
840704 93.55 ------------------93.84 58,600
840811 93.77 ------ --------- ---
94.08 60,000
840811 ---------------------94.08 60,000
840801 93.73 93.75 93.74 93.79 93.89 93.93 93.98 94.00 60,300
840626 93.95 ------------------94.30 64,800
840626 ---------------------94.31 64,800
840807 94.17 94.16 94.16 94.24 94.34 94.31 94.44 94.40 66,700
through the study site to a point at least 1,100 feet upstream from the
mouth of Island Side Channel at a mainstem discharge of 35,000 to 38,000
cfs.During mainstem discharges of 56,100 cfs to 66,700 cfs,the
backwater area decreases and only extends 570 feet from the mouth.This
area of backwater results from the large side channel located at the
mouth of Island Side Channel.Similar water surface elevations found to
occur at transects 1-2 and 4-6 at a mainstem discharge of 17,800 cfs are
a result of pooling and not backwater.
3.10 Mainstem West Bank Side Channel (RM 74.4)
3.10.1 Site Description
Mainstem West Bank Side Channel is located on the west bank of the main
channel Susitna River at river mile 74.4 (Figure 35).This side channel
is approximately 2.2 miles in length with both the mouth and head of the
side channel directly connected to the Susitna River.Two heads are
located approximately 1.5 miles upstream of the study site which connect
this side channel to the mainstem.At the study site,the side channel
is confined on the west by a steep bank and on the east by a well
vegetated island which separates it from the mainstem.The upper
portion of the side channel above the study site is separated from the
mainstem by a network of side channels and well vegetated islands.
L~ithin the study site,a minor channel is located on the east bank of
the side channel.During nonbreached conditions,the side channel
consists of a series of pools and small riffles.Groundwater provides
the major contribution of flow prior to breaching of the head.
82
......
-
-
J J 1 1 )1 1 )J })1 1 1 }1
CD
W
"
,"~:,'•.~:~~~:~~..-,~.'..~:"',I
Figure 35.Overview of Mainstem West Bank Side Channel
(RM 74.4)and Circular Side Channel (RM 75.3).
During the 1984 open water field season,the study site within this side
channel was located in the lower portion of the side channel.Stage was
monitored at seven locations,with streamflow measurements collected at
only one of these stage monitoring stations (Figure 36).Cross section
survey data were collected at each stage monitoring station.In addi-
tion,survey data for the development of a thalweg profile were
collected from the first hydraulic control downstream of the study site
to the first hydrau1 ic control above the study site and through a
portion of a minor channel on the east bank.
3.10.2 Stage/Discharge Relationship
Measurements of \'iater surface el evati on obtained at each stage moni-
taring station located in Mainstem West Bank Side Channel along with the
mean daily mainstem discharges (USGS 15292780)corresponding to the date
of the stage measurements are presented in Attachment Table B-1.Plots
of these water surface elevations versus mainstem discharge are pre-
sented in Attachment Figures E-15 to E-21.
Measurements of streamflow were obtained at one stage monitoring station
located on transect 1.The streamflow measurements and correspondi ng
water surface elevations and mainstem discharges at Sunshine (USGS
15292780)are presented in Attachment Table B-1.
84
-
}-1 1 }-J J 1 }1 1 i }1 J 1
~
..~-,I""'.
,-,-
'i'·
Location of Mainstem West Bank Side Channel study site (RM 74.4).
Staff Gage
Transect
)\
o 2501,
FEET
(Approximate Scale)
Figure 36.
i/
co
U"l
A rating curve of the streamflow measurements and water surface eleva-
tions is presented in Figure 37.A rating curve of the streamflow data
plotted against mean daily mainstem discharge is presented in Figure 38.
3.10.3 Mainstem Controlling and Breaching Discharges
Breaching of Mainstem West Bank Side Channel occurs as the result of the
mainstem Susitna River overtopping at least one of the two side channel
heads located approximately 1.5 miles upstream of the study site.Based
on field observations~the side channel has been observed to be barely
breached at a mainstem discharge of 19,000 cfs and dry at 18,700 cfs
(Table 2).Based on these field observations an initial breaching
discharge of 19,000 cfs has been selected for this side channel.
To evaluate the influence mainstem discharge has on the hydraulic
condition of this side channel,a comparison of the rating curves for
transect 1 was performed (Fi gure 39).Based on a revi ew of the stage
versus mainstem discharge rating curve presented in Figure 39,it has
been determined that at mainstem discharges greater than 19,600 cfs the
hydraulics within this side channel are directly controlled by mainstem
discharge.This results from the breaching of one of the two heads of
the side channel.The site flow that occurs at 19,600 cfs was measured
to be 5.7 cfs (Attachment Table 8-1).Table 3 summarizes the comparison
of flow estimates determined from rating curve equations for the
controlling mainstem discharge of 19~600 cfs.
86
,flP,9:1
-
-
.....~MFlINSTEI1 W·B.S.CtiFlN.1'Rl fll SllEl
RM 7~."l
GFGE 07 ...is 1
24 4.9951~Q oS 1.0-0.80 (WSEl -90)sc
r 2 s 0.99 .
Q s 10-2.8739
sc
r 2 s 0.99
10
Fi gure 37.Ma i nstem West Bank Si de Channe 1 streamf1 ow
versus WSEL rating curve at transect 1 Q
Site.
87
~MAINSTE~w.e.s.CHAN.TRl IQ 51TEI
~74.1
GRiE:071.iSl
8co
~Q =10-6.3745 Q 2.0021
sc ms
r 2 =0.99
~-32.6565 n 7.8497Qsca10~s
r 2 s 0.89
.~
MRtN51tn OtSCHRRGE ftT SUNSMtNE (IOOOtr5)u:m
~-
-
-
-
-
Figure 38.Mainstem West Bank Side Channel streamflow
versus mainstem discharge at Sunshine
Station (USGS 15292780)rating curve at
transect 1 Q Site.
88
---Q"•10.6.3745 o"s 2.0021
r 2 •0.99
Q:.5.7 cis------
C,C •10-2.8139 (WSEL·90'a.00l8_
r 2 •0.99
MAINSTEM WEST BANK SIC TRI
GAGE 74.451
cfs
NO EQUATION OEVELOPED
____•10.32.6565 n 7.a497
Qse "lns
i .0.a9
NOT <:O"TROLLEO
l'.700 $0 ~19.600 ctl
CONTROLLED
• /l2.000 s:0 s:19.100 cf<
~WSEL •1O.1.0a17 QD.J929 •90
,2 •0.98
<:ONTROLLED~12.l00 s:Q s:32.000 cf,
.:--WSf;L •10.2.129000.5257 •90
,2 •0.98I--CONTROLLED
19.500 s:Il.!n.lOO.d,
Id-Q:5.7 cfs
t
J+-Q:19,600
I
/
1~
I~
I~
3=-,~,---r,...-~""_""'_"""~I"~__""'""'''''''''''_\""_,+,----'-;;..-...,..._....._-__
I'IUr-.~lE"OI~""1lG!:"T ~~~tN!:tlOCOtl"~1 ..eEL \.~fall
!:l...
-
.....'0 'tal
Figure 39.Comparison of rating curves for Mainstem
West Bank Side Channel transect 1 Q Site.
89
At mainstem discharges of both 22,000 cfs and 32,000 cfs,the stage
versus streamflow relationship for transect 1 and several of the remain-
ing transects was determined to change.These changes are illustrated
by changes in the slope of the line in each of the stage versus mainstem
discharge rating curves for these transects (Attachment Figures E-15 to
E-21).Based on field observations these changes are assumed to result
from channel geometry and the diversion of flow through a small side
channe 1,located upstream of transect 4,away from l\1a i nstem ~Jest Bank
side channel.
3.10.4 Channel Geometry
3.10.4.1 Thalweg Profile
The thalweg profile of t1ainstem ~Jest Bank was surveyed during a non-
breaching mainstem discharge of 14,700 cfs while the site flow was
estimated to be less than 1 cfs.Two channels were surveyed;the main
side channel and a smaller channel located on the east bank near the
upper portion of the study site.The thalweg of the main channel was
surveyed from a pool located approximately 329 ft downstream of transect
1 and continued through the study site to a point approximately 210 ft
above transect 4.The survey data for the main channel thalweg profile
are presented in Attachment Table C-I0 with the resultant thalweg
profile being presented in Attachment Figure C-lO.The gradient within
the thalweg profile was 12.3 feet/mile.
90
-
-
-
"'"
-
-
.-
-
The smaller channel thalweg survey began on transect 2 and continued
upstream approximately 600 ft incl uding transects 2A,3,and 3B.The
survey data for this thalweg profile are presented in Attachment Table
C-10 with the resultant thalweg profile presented in Attachment Figure
C-10.
3.10.4.2 Cross Section Profile
Cross sectional profiles were determined at each of the seven staff gage
locations in Mainstem West Bank Side Channel.Four of these cross
sections extended across the entire study site (transects 1,2,3 and 4)
whereas two of the transects (transects 2A and 3B)crossed only the east
bank minor channel and one (transect 3A)crossed only the main channel
of the study site.The data obtained for these cross sections are
presented in Attachment Tabl es 0-17 to 0-23.These resultant cross
section profiles are presented in Attachment Figures 0-17 to 0-23.
3.10.5 Backwater
Based on Table 5 and field observations,backwater did not occur in the
study site throughout the 1984 sampling period.Similar water surface
elevations occurring for transects 1-3 are the result of pooling and not
backwater.The study site for Mainstem West Bank Side Channel was
located a substantial distance upstream from the mouth of the side
channel.A backwater area was observed throughout the majority of the
1984 field season at the mouth of this side channel but insufficient
information is available to precisely determine the extent of backwater.
91
Table 5.A comparison of water surface elevations from Task 14 staff gages located within Mainstem West
Bank Side Channel.
Mainstem
Date TR 1 TR 2 TR 2A TR 3 TR 3A TR 3B TR 4 Di scha rge
841010 92.64 92.63 ---93.03 93.05 ---94.63 14,700
841001 ------------93.37 ------18,700
840925 92.85 --- --- ---
93.51 ------19,600
840915 93.90 93.74 ---93.80 94.04 ------22,300
840914 94.12 94.13 ---94.18 94.44 ---95.83 24,000
840903 ------94.90 94.97 95.21 95.06 96.39 29,000
\D 840920 94.62 94.64 94.67 94.70 94.93 ---96.16 30,500
N
840902 94.94 94.98 94.99 95.04 95.29 ---96.46 32,000
840902 94.97 95.00 ---95.08 95.32 ---96.54 32,000
840817 95.49 95.60 ------------97.22 42,500
840815 95.56 95.64 ---95.92 ------97.30 46,000
840724 96.02 ------------------55,200
840723 95.98 96.07 ---96.36 ------97.67 56,100
840712 95.96 -_....---------------54,100
840711 96.01 96.06 ---96.39 ------97.50 55,100
840711 96.08 96.09 ------------97.70 55,100
840721 96.02 96.09 ---96.44 ------97.62 57,700
840721 96.03 96.14 ---------------57,700
.-1 J 1 J I .))~J -J •~..~•.1 J ,)
-1 )j j )]J J I 1 i 1
Table 5 (Continued).
Mainstem
Date TR 1 TR 2 TR 2A TR 3 TR 3A TR 3B TR 4 Di scha rge
840801 96.22 96.31 ---96.67 ------97.90 60,300
840801 96.24 96.32 ---------------60,300
840810 96.49 96.54 ---96.81 ------97.86 66,400
840810 96.54 96.62 ---96.94 ------98.19 66,400
840807 96.49 96.51 ---96.81 ------97.97 66,700
840827 97.14 ------------------79,700
840827 97.19 ------------------79,700
<..Dw
3.11 Goose 2 Side Channel (RM 74.8)
3.11.1 Site De~cription
Goose 2 Side Channel is approximately 1.4 miles in length and is located
on the east bank of the Susitna River at river mile 74.8 (Figure 40).
This portion of the Susitna River is considerably braided and both the
head and mouth of Goose 2 are connected to side channels.An extensive
log jam exists at the head of the Goose 2 side channel which may
influence the flow of water during an overtopping of the head.Goose 2
is separated from a network of small channels by a well vegetated island
on its west bank and is confined on its east bank by a high.terraced
wall.
Breaching flows occurring in Goose 2 result from overtopping of the head
from the adjoining side channel.Prior to breaching of Goose 2,stream-
flow is minimal with the channel substantially dewatered and composed of
isolated pools.
During the 1984 open \oJater field season the study site selected for
Goose 2 Side Channel was located in the upper portion of the side
channel.Stage was monitored at one location and streamflow was
measured at this stage monitoring station (Figure 41).Channel geometry
data obtained from Goose 2 Side Channel included cross section and
thalweg profiles.A cross section was obtained at the stage monitoring
station and a thalweg profile was determined for the portion of the side
94
~-
,-
Fi gure40.Overview of Goose 2 Side
95
-
-
-
Figure 41.Location of Goose 2 Side Channel study site (RM 74.8).
96
-
-
,...
channel including the study site and continuing upstream to the head of
the side channel.
3.11.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at the stage monitor-
ing station located in Goose 2 Side Channel are presented in Attachment
Table B-1 along with the mean daily mainstem discharge (USGS 15292780)
corresponding to the date of the stage measurement.A plot of these
water surface elevations versus mainstem discharge are presented in
Attachment Figure E-22.
Measurements of streamflow in Goose 2 Side Channel were obtained at one
stage monitoring station (Figure 41)which was located on transect 2 of
the study sites.These measurements of streamflow and the corresponding
water surface elevation and mainstem discharge (USGS 15292780)are
presented in Attachment Table B-1.A plot of these streamflow and water
surface elevations was developed as a rating curve to estimate stream-
flow from observed water surface elevations and is presented in Figure
42.The streamflow data was also plotted against mainstem discharge as
a rating curve to estimate streamflow from mainstem discharge (Figure
43).
3.11.3 Mainstem Breaching and Controlling Discharges
Breaching of Goose 2 Side Channel results from overtopping of the head
by a side channel and not directly by the mainstem Susitna River.This
97
~GOOSE 2 SiDE DiANNa.T~2 fO SiTE]
RM 7'\.9
GFCE:07~.8S2 -
Q •10-4.5339 (WSEl _210)8.9838sc
r 2 •0.99
10
-
Figure 42.Goose 2 Side Channel streamflow versus WSEL
rating curve at transect 2 Q Site.
98 ....
..-
~SOOSE::2 SlOE QiArU£L TR2 co S ~TE]
RN 7i.8
GfUE:071.852
.-
Fi gure 43.
Q =10-13.2627 Q 3.2404
sc ms
r 2 =0.76
100
nrUNSTCI1 0 1:lCH"~rrr 3lMt1 H£r 1OOlJCf'3 I
Goose 2 Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site.
99
side channel was observed as "barely"breached at a mainstem discharge
of 32,000 cfs and dry at 22,700 cfs (Table 2).Assuming that the site
is "barely"breached at 32,000 cfs it can be inferred that the site is
likely initially breached at a discharge less than 32,000 cfs.
Therefore,a mainstem discharge of 30,000 cfs has been estimated as the
initial breaching discharge.
Insufficient stage data is available to precisely determine the control-
ling breaching discharge for this side channel.However,based on the
assumption that the side channel is initially breached at approximately
30,000 cfs and from a review of the stage/discharge relationship
(Attachment Figure E-22)a controlling discharge of 32,000 cfs is
estimated for this side channel.
The rating curves developed at the Goose 2 Side Channel streamflow
station were compared to evaluate the influence of mainstem discharge on
the hydraulics of the side channel (Figure 44).Using 32,000 cfs as
the controlling discharge a streamflow estimate of 26.3 cfs was obtained
using the flow versus water surface elevation rating curve (Figure 42).
This estimate is higher than the flow estimate (21.7 cfs)determined
from the flow versus mainstem discharge rating curve (Figure 43).
3.11.4 Channel Geometry
3.11.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained at
Goose 2 Side Channel during a non-breaching mainstem discharge of 19,600
100
-
.,
-
-
~
I
-
Q =21.7 cfs
0sc •10.13.2621 03.2404
.z •0.16
0sc •10-4.5339 (WSEl -210)8.9838
.2 •0.99
Q =26.3 cfs
I~
I!
N
I "I~
I~
I
-,±'".----........---......~l~"'-------.......--.,..,......._:,.------.....---......--_.......,-......-.....---'0
""[N51~"otx~lIT ~l1<51l[>£C10~1
--
1-
I
I
I
V··I .
___c-
WSEL=214.60
CONTROlLED
JZ.OOO -::Q ~10,000 cfs
W5EL =10-.7805 Q,3203 +210
.2 •0.91
GOOSE 2 SIDE CHANNEL TR 2
GAGE 74.8S2
"'"Mr~I~"or~"""GC eT S!.MIlt>£C100~1
Figure 44.Comparison of rating curves for Goose 2
Side Channel transect 2 Q Site.
101
cfs and an estimated streamflow of less than 1 cfs.The survey data for
the thalweg profile are presented in Attachment Table C-11 with the
resultant thalweg profile presented in Attachment Figure C-l1.The
thalweg profile includes the head of the side channel continuing down-
stream to approximately 500 feet below transect 1.The streambed
gradient for the portion of the side channel "included in the thalweg
profile was 9.2 feet/mile.
3.11.4.2 Cross Section Profile
Cross section data were recorded at the only stage monitoring station
located in Goose 2 S"ide Channel.This stage monitoring station was
located on transect 2 (Attachment Figure C-11).The cross sectional
data are presented in Attachment Table 0-24 with the resultant cross
section presented in Attachment Figure 0-24.
3.11.5 Backwater
Based on available 1984 stage (Attachment Table B-1)and channel
geometry (Attachment Figure C-11)data,a bachJater a rea was observed
not to occur in the Goose 2 Side Channel study site.The study site for
Goose 2 Side Channel was located in the upper portion of the side
channel (see Section 3.10.1 of this report).The field observations for
1984 at Goose 2 Side Channel were limited to the study site therefore
backwater observations occurring in the side channel mouth area were not
obtained in 1984.
102
-
-
,~
,~
....
-
3.12 Circular Side Channel (RM 75.3)
3.12.1 Site Description
Circular Side Channel is located on the west bank of the Susitna River
at river mile 75.3 (Figure 35).It is approximately 0.9 miles long and
is separated from the mainstem by a large well vegetated island.Both
the mouth and head of this side channel are connected to the mainstem
Susitna River.An extensive backwater area has been observed to occur
in the lower portion of the study site.A network of small channels at
the head provide mainstem flow into the site after breaching.Prior to
breaching,flow is greatly reduced and the channel is composed of large
pools connected by small riffles.
During the 1984 open water field season,the study site within Circular
Side Channel was located in the upper half of the side channel.Stage
was monitored at six locations within the study site with stl~eamflow
measurements being collected at two of these stage monitoring stations
(Figure 45).Stage was also monitored at the head of the side channel.
Cross section survey data were collected at each of the stage monitoring
stations except the stage monitoring station at the head.Survey data
for the development of a thalweg profile were collected beginning at the
first hydraul ic control located downstream of the study site and ~vas
continued to the head of the side channel .
103
104
.:.1-
ClJ
.j..J
III
ClJ
"'0
V'l
4-o
co
or-
.j..J
rt:I
Uo
-l
-
,,,,,",'
-
-
--
-,
3.12.2 Stage/Discharge Relationship
Measurements of water surface elevations at each stage monitoring
station located in Circular Side Channel along with the mean daily
mainstem discharges (USGS 15292780)corresponding to the date of the
stage measurements a re presented in Attachment Table 8-1.Plots of
these water surface elevations versus mainstem discharges are presented
in Attachment Figures E-23 to E-29.For transect 4 a gap exists between
the lines depicting the nonbreached and breached condition.This gap is
assumed to be the result of channel scour from the August 26 flood
event.
Measurements of streamflow in Circular Side Channel were obtained at two
stage moni tori ng stat;ons located on transects 1 and 4 (Figure 45).
These measurements of streamflows and the correspondi ng wa ter surface
elevations and mainstem discharges (USGS 15292780)are presented in
Attachment Table B-1.Plots of streamflows versus water surface
....
I
elevations developed as rating curves are presented in Figures 46 and
47.Rating curves of the streamflow data plotted against mainstem
discharge are presented in Figures 48 and 49.
3.12.3 Mainstem Breaching and Controlling Discharges
Breaching of Circular Side Channel is the result of direct overtopping
of the head by the mainstem Susitna River.Insufficient field data is
available to determine precisely the initial breaching and controlling
discharge for Circular Side Channel.Field observations and a review of
105
-CIRCULAR SlOt CHRN.rp.1 [Q SITE]
RM 75.3
GRit 07$.351
Q 10-2.1169 (WSEL _a5)6.01aasc=
r 2 =0.99
-
-I"+o-------...,...------~-----:-..,.._-__ILa
Figure 46.Circular Side Channel streamflow versus
WSEL rating curve at transect 1 Q Site.
106
-
~CIRCU-~R SIC~CHA~~L TR i 10 SITE)
RM 15.3
SPEE:Q7S.35 ..
.....
-
Q ~10-5.3943 (WSEl -85)9.5838
sc
r Z =0.98
,~
-
li.....----------------------J10
Figure 47.Circular Side Channel streamflow versus
WSEL rating curve at transect 4 Q Site.
107
,-------------,-----------------------------------------
5!CIRCl.A.JIR SlOE:CI1AN.!R 1 (Q 5 ITtl
P.I"I 75.3
GFG£07S.3S 1
ill-U Q a 10-18.9993 0 4.4782
sc 1mS
r 2
s 0.97
100
111'1 rN~l~M a [SC!1R~fIT SlJII5H rNt (\OOOCl'"S I
\000
Figure 48.Circular Side Channel streamflow versus
mainstem discharqe at Sunshine Station
(USGS 15292780)rating curve at transect 1
Q Site.
108 -
-
~'I"'"":,:,:,::~=-:,,:,,:,,:::-::,:,,:~-=--::::--:-:------------------.CIRCU-~R SlOE CHANNEL TR 1 (0 SIlL]
it'!75.3
rrGE:075.3S~
-
-
Q s 10-19.1044 Q 4.5065
sc ms
r2 s 0.99
-
-.0
Figure 49.Circular Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 4
Q Site.
IIXD
aerial photographs indicate the head of the side channel to be breached
at 36,600 cfs and dry at 32,000 cfs (Table 2).A field observation at
35,000 cfs found the side channel flowing clear indicating a nonbreached
condition although the side channel head was not observed at the time.
Upon close inspection of the aerial photograph at a breaching discharge
of 36,600 cfs the side channel was observed flowing turbid (Pers.Comm.
1984 Bill Ashton;R&M Consultants)indicating a controlled hydraulic
condition.Based on this information a controlling discharge of 36,000
cfs is estimated for Circular Side Channel.The initial breaching
discharge of the site is estimated to also be 36,000 cfs based on the
field observations.
To evaluate the influence mainstem discharge has on the hydraulic
condition of this side channel,a comparison of the rating curves for
transect 4 was performed (Figure 50).Although two streamflow stations
were located in Circular Side Channel (transects 1 and 4),transect 4
was selected for thi s compari son as it had a greater range of stage
observations than transect 1 and was a better defined rating curve.The
site flow that occurs at a mainstem discharge of 36,000 cfs has been
estimated to be 26.8 cfs based on stage versus streamflow rating curve
for transect 4 (Figure 47).The estimate of 26.8 cfs is the same as the
estimate of streamflow derived from the transect 4 streamflow versus
mainstem discharge rating curve (Figure 49).Table 3 summarizes a
compari son of streamflow estimates determi ned from equati ons developed
from both rating curves for controlling mainstem discharges for
transects 1 and 4.
110
-
-
....
....
0=26.8 cfs
0sc •10-5.3943 (W5El •85)9.5838
"•0.98
0=26.8 cfs /-------t
I
I~
l~
I~
I~
CIRCULAR SIDE CHANNEL TR4
GAGE 75.354
_\,J,.-----.....,...---.......--....--+-...---.-.....-10
..~~~(+~ra;n,....
0sc'10-19.1044 Om/·5065
"•0.99
"'0",..[~,~~Ot~Il~~~T ~~~~l[>C (1000~J
~0 =36,000 cfs
yr--CONTROllEG
•Jfi.OOO S.Q'£].r"J,lDD c:~~I WS£L •\0-1.3619 0°·4551 85WSEL=90.15 !•
-~"'0.98
\MOT CONTROllEO
a
!
III
.±.
11,700:::Q ~36,OOO<f,
"S[l '10°.2103 0°·1055 •A5
,2 •0.91
....
-'o ''''''
Fi gure 50.Comparison of rating curves for Circular
Side Channel at transect 4 Q Site.
111
3.12.4 Channel Geometry
3.12.4.1 Thalweg Profile
Survey 'data for the development of the thalweg profile of Circular Side
Channel was determined during a mainstem discharge of 14,700 cfs (USGS
15292780)when the side channel flow was estimated to be less than 1
cfs.The thalweg survey extended approximately 2,800 feet beginning at
the confluence of Circular Side Channel with another side channel and
continuing to the head of the side channel.Survey data used to develop
the thalweg profil e are presented in Attachment Table C-12 with the
resultant thalweg profile being presented in Attachment Figure C-12.
The gradient within the thalweg profile is 14.3 feet/mile.
3.12.4.2 Cross Section Profile
Cross section data were obtained at each of the six transect locations
within the study site.Survey data from these cross sections are
presented in Attachment Tables 0-25 to 0-30 with the resultant cross
sectional profiles being presented in Attachment Figures 0-25 to 0-30.
3.12.5 Backwater
Based on available stage data (Table 6)and a review of the thalweg
profile for Circular Side Channel,backwater has not been observed to
occur during non-breaching mainstem discharges.
112
~;
-
"""
-
".."
1 )"J J )--1 )J J
Table 6.A comparison of water surface elevations from Task 14 staff gages located within Circular Side
Channel.
Mainstem
Date TR 1 TI<2 TR 2A TR 3 TR 4 TR 5 Discharge
841010 ------88.06 ------89.04 14,700
841009 ---------------89.10 15,000
840928 ------ ------89.54 89.55 17 ,700
840914 ---------89.45 89.72 89.73 24,000
840903 ------88.69 89.55 89.85 89.84 29,000
940920 87.87 ---88.67 89.50 89.77 89.76 30,500
940902 ------88.70 89.56 89.84 ---32,000
t-l 840830 89.10 89.27 89.33 90.06 90.40 ---40,800
f-'w 840817 89.25 89.27 89.41 90.17 90.57 ---42,500
840817 89.28 89.30 ---90.20 90.60 ---42,500
840724 90.26 90.26 90.28 90.60 91.25 91.32 55,200
840724 90.26 ---90.31 90.67 91.26 91.32 55,200
840724 90.29 ---------91.26 ---55,200
840724 90.30 ---------91.29 ---55,200
840724 90.30 ---------9L30 ---55,200
840710 ------ ---
90.51 91.13 ---52,500
840803 90.23 90.21 90.26 90.62 91.24 ---54,700
840803 90.24 --- --- ---
------54,700
840723 90.31 ------90.64 91.26 ---56,100
840811 90.81 90.77 -_.-91.01 91.58 ---60,000
840811 ---_m ...._------91.59 ---60,000
Table 6 (Continued).
Mainstem
Date TR 1 TR 2 TR 2A TR 3 TR 4 TR 5 Discharge
840706 90.70 ------90.92 ------63,600
840706 90.70 ---------------63,600
840706 90.72 --------- ------63,600
840824 90.78 90.80 90.81 91.03 91.54 ---64,800
840824 90.78 ---------91.56 ---64,800
840626 90.99 ------91.15 ------64,800
840626 91.00 ------91.21 ------64,800
840807 91.24 91.19 91.18 91.32 91.83 ---66,700..............
.Po 840827 91.75 ---------92.43 ---79,700
840827 91.82 ---------92.49 ---79,700
,J j )J J I I J J )I )J
....
....
At a mainstem discharge of 42,500 cfs,backwater has been determined to
extend slightly past transect 2.At breaching mainstem discharges of
55,200 to 66,700 cfs,an area of backwater was found to occur upstream
to a point approximately 90 feet above transect 2A.Insufficient stage
data is available to describe the extent of backwater for mainstem
discharges exceeding 66,700 cfs.
3.13 Sauna Side Channel (RM 79.8)
3.13.1 Site Description
Sauna Side Channel is located on the west bank of the Susitna River at
river mile 79.8 (Figure 51).It is approximately 0.2 miles long.The
mouth and head of the side channel are connected to the same larger side
channel of the mainstem Susitna River.For the most part,Sauna Side
Channe lis confi ned on the west by a hi gh bank and on the east by a
large sparsely vegetated gravel bar.A smaller side channel enters just
below the head of Sauna Side Channel on its west bank.This side
channel conducts flow to the study site during high mainstem discharges.
but dewaters before the head of Sauna Side Channel becomes unbreached.
Breaching flows result from overtopping of the side channel that adjoins
the head on the east bank of Sauna Side Channel.Prior to breaching,
the channel is composed of two 1arge interconnected pools whose w'a ter
levels are maintained from ground v'/ater seepage originating from the
vicinity of the head.An extensive log jam exists at the head of Sauna
Side Channel that likely influences the flow into this side channel.
115
-
-
(
RM 79$
,t..
.,
500
I
Overview of Sauna Side Channel (RM 79.8).
River Mile
o
I
FEET
(Approximate Scale)
Fi gure 51.
116
During the 1984 open water field season,the study site within this side
channel was approximately 500 feet in length and was located approxi-
mately 2,000 feet from where the mouth of the larger side channel
confluences with the mainstem.Stage was monitored at four locations
with streamflow being measured at one of these stage monitoring stations
(Figure 52).Cross section survey data were collected at each of the
stage monitoring stations.Survey data for the development of a thalweg
profile were collected beginning at the mouth and ending at the head of
the side channel.
3.13.2 Stage/Discharge Relationship
Water surface elevations obtained at each of the stage monitoring
stations located in Sauna Side Channel along with the mean daily main-
stem discharge (USGS 15292780)corresponding to the date of the stage
measurement are presented in Attachment Table B-1.Plots of these water
surface elevations versus mainstem discharges are presented in
Attachment Figures £-31 to £-33.
~1easurements of streamflow in Sauna Side Channel I'/ere obtained at one
stage monitoring station located on transect 2.These measurements of
streamflow and the corresponding water surface elevations and mainstem
discharges (USGS 15292780)are presented in Attachment Table B-l.A
plot of these streamflows versus water surface elevations was developed
as a rating curve and is presented in Figure 53.In addition,the
streamflow data plotted against mainstem discharge is presented in
Figure 54.
117
,----,---------------------------------------------
Fi gu re 52.location of Sauna Side Channel study site (RM 79.8).
118
-
"""
-
~SFlJNA SHE CIftlNE:L !R 2 m SIrE)
RM 79.8
GRit 079.SS2
Q a 100.1279 (WSEL _as)2.0592
sc
r 2 =0.92
a
10
Figure 53.Sauna Side Channel streamflow versus WSEL
rating curve at transect 2 Q Site.
119
!:!SFlJNFi SI CE ~NE:L TR 2 (Q S ltE:)
RM 79.8
GFCt 079.852
~I
.....
-
Q =10-9.12840 2.2766scoms
1'"2 =0.90
100
MflINS!E:M a[SCf1fl~fiT ~lNSHINE U ooccrs I
Figure 54.Sauna Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site.
120
~,
~I
3.13.3 Mainstem Breaching and Controlling Discharges
Breaching of Sauna Side Channel is the result of overtopping of the head
by the adjoining side channel.Insufficient field data is available to
determine precisely the initial breaching and controlling discharges for
Sauna Side Channel.Field observations and a review of aerial photo-
graphs indicate the head of the side channel to be "barely"breached at
40,800 cfs and "almost"breached at 36,600 cfs (Table 2).
Although the lowest discharge at which the mainstem \'/as observed to
breach Sauna Si de Channel was 40,800 cfs,a controll i ng di scharge of
38,000 cfs is estimated for this channel.This controlling discharge
was estimated by assuming that the stage/discharge relationship (Attach-
ment Figure E-31 to E-33)for the nonbreached condition was nearly
horizontal.This assumption is made because of the lack of nonbreached
stage observations (l observation only)and is considered reasonable
based on observations and stage data collected at this site.The
controlling discharge is scaled from the curve as the point of
intersection (38,000 cfs)of the nonbreached limb of the stage/discharge
relationship.The initial breaching discharge is estimated to occur at
37,000 cfs based on field observations and assuming the site initially
breaches within 1,000-2,000 cfs of the controlling discharge as observed
at other side channel sites.
To evaluate the influence mainstem discharge has on the hydraulics of
Sauna Side Channel,a comparison of the rating curves for the streamflow
station at transect 2 was performed (Figure 55).A side channel flow of
121
/
Q=19.9 cfs /--t,:
I~
1 8.
I~
1°
0sc •10-9•1284 0••2.2766
r Z •Dc 90
0"•100.1279 (WSEL _85)2.0592
.2 •0.92
0=22.5 cfs -
-'004.------.1-----'00-----------_,'"'-------------.....-------~.,
,'~JN~r~"Q!SCH~1I:G::"T =IN.IHII<l:\I00DenJ
+
II ;-CONTROLLED
38,000 :::0 :::67.100 cfs
I I/WSEL •10·l.7806 0.9554 •85
iWSEL=88.9'3 Vi r
2
0.93
\IIOT CONTROLLED
15.000 s:Q ~l8,OOO cf!
_0 EQUATION DEVELOPED
".MRtr~!E.·'OtXtlMG(fH '5t.1'o'SHlllC {IOQ(JCf""51 """
SAUNA SIDE CHANNEL
GAGE 79.8S2
TR2
Figure 55.Comparison of rating curves for Sauna Side
Channel transect 2 Q Site.
122
,.-
I
-
22.5 cfs has been estimated to occur at the controlling discharge of
38,000 cfs as deri ved from the stage versus streamflow rati ng curve.
This compares to a streamflow estimate of 19.9 cfs determined from the
streamflow versus mainstem discharge rating curve.Table 3 summarizes
compari sons of streamfl ow estimates determi ned from transect 2 rati ng
curves for controlling mainstem discharges of Sauna Side Channel.
3.13.4 Channel Geometry
3.13.4.1 Thalweg Profile
Survey data for the development of a tha1weg profile were collected at
Sauna Side Channel during a mainstem discharge at Sunshine (USGS
15292780)of 15,000 cfs when the flow within the study site was
estimated to be less than 1 cfs.The thalweg survey extended approxi-
mately 1,450 feet beginning at the mouth of the side channel continuing
upstream through the study site terminating at the head of the side
channel.The survey data used to develop the thalweg profile are
presented in Attachment Table C-13 with the resultant thalweg profile
being presented in Attachment Figure C-13.A gradient of 10.4 ft/mi was
determined for the thalweg profile.
3.13.4.2 Cross Section Profile
-Survey data for the development of cross sectional profiles were
obtained at each of the four transects located in Sauna Side Channel.
123
The survey data are presented in Attachment Tables D-31 to 0-34 with the
resultant cross sectional profiles being presented in Attachment Figures
0-31 to D-34.
3.13.5 Backwater
Based on a review of the 1984 stage data (Table 7)and the thalweg
figure for Sauna Side Channel (Attachment Figure C-13),it has been
estimated that backwater does not occur in Sauna Side Channel during
non-breaching mainstem discharges.
During breaching discharges of 54,600 to 56,700 cfs,an area of back-
water was observed to occur throughout the Sauna Side Channel study
site.At mainstem discharges exceeding 56,700 cfs,insufficient stage
data is available to determine the extent of backwater.
3.14 Sucker Side Channel (RM 84.5)
3.14.1 Site Description
Sucker Side Channel is located on the east bank of the Susitna River at
river mile 84.5.This side channel is symmetrical in shape and
approximately 0.7 miles in length.Sucker Side Channel is part of a
network of other side channels that braid through a complex of well
vegetated islands.The head of Sucker Side Channel adjoins another side
channel whereas the mouth connects to a channel of the mainstem Susitna
124
-
-
J 1 )J 1 I )]]1 )
Table 7.A comparison of water surface elevations from Task 14 staff gages located within Sauna Side
Channel.
Mainstem
Date TR 1 TR 2 TR 3 TR 4 Di scharge
841009 88.75 89.00 88.90 89.02 15,000
840928 ---------89.02 17,700
840914 ---------89.02 24,000
840830 ---------89.39 40,800
840817 89.15 ------89.29 42,500
840710 ---90.24 ------52,500
840823 90.63 90.61 90.64 90.65 54,600
......840723 90.71 90.66 90.69 56,100N---U1
840723 90.70 90.73 90.72 90.69 56,100
840723 90.72 90.73 90.75 ---56,100
840802 90.73 90.75 90.75 90.79 56,700
840721 ---90.91 ------57,700
840828 ---91.09 ------59,900
840828 ---91.13 ------59,900
840706 ---91.18 ------63,600
840810 ---91.83 ------66,400
840810 ---91.85 ------66,400
840807 ---91.26 ------66,700
840625 ---91.82 ------67,100
840625 ---91.86 ------67,100
River.Breaching results from overtopping of the head by the adjoining
side channel.
Prior to breaching,flow in the side channel is minimal and generally
results from bank seepage.During high mainstem discharge a backwater
area was observed in the lower portion of the side channel.
During the 1984 open water field season the study site was located in
the lower portion of the side channel (Figure 56).Stage measurements
were collected at two locations in Sucker Side Channel with streamflow
measurements obtained at each of the two stage monitoring stations
(Figure 57).Channel geometry data obtained for Sucker Side Channel
include cross section and thalweg profiles.Cross Section profiles were
obtained at each stage monitoring location.The thalweg profile was
determined from the mouth of the side channel continuing upstream to the
first hydraulic control above the study site.
-
':l 1 Ll ?oJ ...L.;.....Stage/Discharge Relationship
In Sucker Si de Channel measurements of water surface elevations were
obtained at stage monitoring stations located at transects 2 and 5.
Recorded water surface elevations and the mean daily mainstem discharge
(USGS 15292780)corresponding to the date of the stage measurement are
-
presented in Attachment Table B-1.Plots of these water surface
elevations versus mainstem discharge are presented in Attachment Figures
E-34 and E-35.
126
-
-
-
a:
1U:>
~;.a:
<j
~
f---('I,),
:2
CI,)}
ffi RM85
Figure 56.
'.-
"'.".
Overview of Sucker Side Channel (RM 84.5).
127
Fi gure 57.Location of Sucker Side Channel
128
(RM 84.5).
-
-
Measurements of streamflow in Sucker Side Channel obtained at two stage
monitor;ng stati ons and the correspondi ng water surface el evati on and
mainstem discharge (USGS 15292780)are presented in Attachment Table
B-1.Plots of these streamflow and water surface elevations were
developed as rating curves to estimate streamflow from observed water
surface elevations (Figures 58 and 59).The streamflow data was also
plotted against mainstem discharge as rating curves to estimate stream-
flow from mainstem discharge (Figures 60 and 61).
3.14.3 Mainstem Breaching and Controlling Discharges
Breaching of Sucker Side Channel results from overtopping of the head by
the adjoining side channel.Insufficient field data is available to
precisely determine the initial breaching and controlling discharges for
Sucker Side Channel.Field observations indicated that the channel was
barely breached at 32,000 cfs and non-breached at 24,000 cfs.No
additional site information is avaiiable at mainstem discharges ranging
between 32,000 and 24,000 cfs.A controlling discharge of 29,000 cfs,
was estimated by assuming that the stage/discharge reiaticnship
(Attachment Figures E-34 and E-35)for the non-breached condition was
nearly horizontal.This assumption was based on observations and data
recorded at this site.The controlling discharge is estimated from the
curve as the point of intersection (29,000 cfs)of the non-breached and
controlled (breached)conditions of the stage/discharge relationship.
The initial breaching discharge of this side channel is estimated as
occurring at approximately 1,500 cfs below the controlling discharge,or
at 27,500 cfs.
129
~SUCKER S roc D-'J1NrlQ..TR 2 (Q 5 lTD
P.N 81.5
GR:iE os 1.552
NO EQUATION DEVELOPED ~
"----Q =10.4211 (WSEL _260)2.6632sc
r 2 =1.00
10
-
,.@I!Ili1
-
"""
Figure 58.Sucker Side Channel streamflow versus WSEL
rating curve at transect 2 Q Site.
130
-
-
",.,.
If!
l...
c.J
~SL£KE:R SHE CH'tUNE!...TR 5
RM 84.S
GAGE CJH.555
Q •10-.0462 (WSEL _260)3.3151sc
r 2 '"0.99
10
Figure 59.Sucker Side Channel streamflow versus WSEL
rating curve at transect 5 Q Site.
131
l:l SLCJ<ER S(OC (}19NNEt.TR 2 co SIrE:
!i'M B"':.S
SRiE 084.SS2
-
~,
-
:zo
~w.._
Q ~10-14.1972 Q 3.4072
sc _ms
r 2 ;.0.99
-
-
lOCO
Fi gu re60.Sucker Si de Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 2
Q Site.
132
r~
-
t;SLCKER SICE Ct-fli'lNQ..TR 5
RM Bi.S
EiFIOE OH.SSS
r"""
I
Q •10-12.9528 Q"3.1453
sc ms
r 2
2 0.99
lOCI
MfHNSTEM O[5!:HRftGf:fIT ~lN5IH~nooo~1 10lD
....
--
Figure 61.Sucker Si de Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 5
Q Site.
133
To evaluate the influence of mainstem discharge on the hydraulics of
this side channel a comparison of the rating curves for.each of the
streamflow stations was performed (Figures 62 and 63).At transect 2
streamflow estimates of 10.0 cfs and 10.2 cfs were determined from the
flow versus water surface elevation and flow versus mainstem discharge
rating curves,respectively.At transect 5 streamflow estimates of 24.5
cfs and 12.1 cfs were determi ned from the flow versus water surface
elevation and flow versus mainstem discharge rating curves,
respectively.
3.14.4 Channel Geometry
3.14.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained at
Sucker Side Channel during a non-breaching mainstem discharge of 19,000
cfs and an estimated side channel streamflow of less than 1 cfs.The
survey data for the thalweg profile are presented in Attachment Table
C-14 with the resultant thalweg profile presented in Attachment Figure
C-14.This thalweg profile extended from the mouth of the side channel
upstream approximately 1,300 feet above transect 6.The streambed
gradient for that portion of the side channel included in the thalweg
profile was 7.2 feet/mile.
134
-
-
-
-
-
.-
I
MO rOUATlOM OEVELOPEO "
-"'"'
~o •10.4111 (wSEL _260)2.6631
SC
.2 •1.00
SUCKER SIDE CHANNEL TR2
GAGE 84.552
0=10.0 cfs
~L -t~
I~
NI~
I.LI
(/)
3:--,
O,C •10-14.1972 ll",,3.4072
/•0.99
COMTROLLEO
29.000 5 0 ~76.200 cf.
WSEL •10,5.5752 01•2980 +260
.1 •0.99
~COMT~OLLEO
75.l00 5 0 ~104,000 cr.
WSEL •10,1.7405 O'7151 •150
.1 •0.99
/
1
I
I
Q=10.2 cfs
\
t
10>
I~
Ig_
I~o
I I
I /I !~II
i 1""?c--HOT COHTROLLEO
\70.100 5 0 5 29.000 <f,
WS EL=261.65 HO (OUATIOH OEVELOPEO
-,~,------l.------:,~oo----------~
""{><lTe"O[:lCMOGC "T 'l1'QM[>(;tl000Cl"51
-"
Figure 62.Comparison of rating curves for Sucker Side
Channel transect 2 Q Site .
...-135
-
O,c •10••0462 (WSEL •260)3.3151
,2 •0.99
Q =24.5 cfs
0...10·12 .95211 0..3•1453
,2 •0.99
Q=12.1 cfs
1 Ii:
I~
j~
.wI~
I-,~a-----\o-""""""'''''''''''''''~",,~--.....-..........-''-'--"'''':''",...,_,.~.....,.__-i..""",_""""_"",,,,,,_---,_
M[~Tt~Ot:5CH!lI!lZ ~~tM"!'f:"000~1
t
COHT1lQ.LEO
29,ooo:S 0 5;55,400 cfs
VS[L •10.2.2689 0,6053 +260
,z •0.98
Ig
o
I~
10
WSEL=I •
262.71 1/~~-~
I'OT CONTROLLEO
22.100 :::Q :::29,000 cfs
KO [QUAHO.OEVELOPEO
ONTROLLEO
55.400 ::Q :0 104.000 cf,
H5EL •10.3.7534 Q'~201 +260
,2 •0.99
SUCKER SIDE CHANNEL TR5
GAGE 84.585
loa
MtN'lTtH C1SC""flGt fIT ~IJ.oHt'"1100a~,-
Figure 63.Comparison of rating curves for Sucker Side
Channel transect 5 Q Site.
136
-
3.14.4.2 Cross Section Profile
Cross section data were recorded at each of the two stage monitoring
stations located within the side channel.These stage monitoring
stations are located on transects 2 and 5 (Attachment Figure C-14).The
cross secti ana ldata are presented in Attachment Tables 0-35 and 0-36
with the resultant cross sections presented in Attachment Figures 0-35
and 0-36.
3.14.5 Backwater
Based on a comparison of 1984 stage data (Attachment Table B-1),a
backwater area extends through the study site approximately 750 feet
during mainstem discharges ranging from 66,400 to 76,200 cfs.
Insufficient information is available to precisely determine the extent
of backwater occurring in the side channel although field observations
indicate that backwater occurred in the side channel mouth area
throughout the majority of the 1984 field season.
3.15 Beaver Dam Slough and Side Channel (RM 86.3)
3.15.1 Site Description
Beaver Dam Slough and Side Channel are located on the east bank of the
Susitna River at river mile 86.3.Both the slough and side channel are
separated from the main channel Susitna River by a large side channel.
137
This side channel adjoins the head and mouth of Beaver Dam Side Channel,
and the head of Beaver Dam Slough.The mouth of Beaver Dam Slough
empties directly into Beaver Dam Side Channel.A substantial backwater
area was observed to occur in Beaver Dam Slough.
Duri ng the 1984 open water fi el d season the study site in Beaver Dam
Slough was located near the mouth of the slough (Figure 64).The
study site in Beaver Dam Side Channel included that portion of the side
channel located downstream of the side channel/slough confluence (Figure
65).
Stage was monitored at one location in both the slough and side channel
study sites.Streamflow measurements were obtained at each of these
stage monitoring stations.Channel geometry data were obtained at both
the sloughs and side channel study sites.Cross sections were obtained
at each stage monitoring station.Thalweg profiles were surveyed
through both the slough and side channel study sites.
3.15.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at each stage monitor-
ing station located in Beaver Dam Slough and Beaver Dam Side Channel and
the mean daily mainstem discharge (USGS 15292780)corresponding to the
date of the stage measurement a re presented in Attachment Table 8-1.
Plots of these water surface elevations versus mainstem discharge are
presented in Attachment Figures E-36 -E-38.
138
-enc:
(JJ--I
Z
>
::D
<m
::D
Figure 64.Overview of Beaver Dam Slough (RM 86.3)and
Beaver Dam Side Channel (RM 86.3).
139
-
-Figure 65.locati on of Beaver Dam Slough and Beaver
Dam Side Channel study site (RM 86.3).
140
.-
-
-
Measurements of streamflow were obtained at the stage monitoring
stations located at the slough transect 1 and at the side channel
transect 4.These measurements of streamflow and the corresponding
water surface elevation and mainstem discharge (USGS 15292780)are
presented in Attachment Table B-1.A plot of the streamflow and water
surface elevations were developed as a rating curve for Beaver Dam Side
Channel to estimate streamflow from observed water surface el evations
and is presented in Figure 66.The streamflow data for the side channel
was also plotted against mainstem discharge as a rating curve to
estimate streamflow from mainstem discharge (Figures 67).Due to
backwater conditions water surface elevation versus flow and flow versus
mainstem discharge rating curves were not developed for Beaver Dam
Slough.
3.15.3 Mainstem Breaching and Controlling Discharges
Breaching of Beaver Dam Side Channel is the result of overtopping of the
head by the adjoining side channel.Beaver Dam Slough was not observed
overtopped in 1984.The head of the side channel was observed breached
at a mainstem discharge of 47,600 cfs and dry at 45,400 cfs.The head
was observed to be more than initially breached at a mainstem discharge
of 47,600 cfs.Therefore,the initial overtopping of the side channel,
(breaching discharge)is estimated to occur at approximately 46,000 cfs.
Based on the breaching observation information and a review of the stage
data presented in Attachment Figure E-37,the mainstem discharge of
47,600 cfs has been chosen as the contt'olling discharge.Attachment
141
~!~B£~~~"I:;VE:R~;::;:OP('l;;:--;S;;:{OC:::-C;::;Ha=N:-.-:iR::-i:-;'-=Q-:S:-:I-:T~E \:---------------....
~86.3
hf'G[086.35<'1
NO EQUATION DEVELOPED ~
Q •10-2.3620 (WSEL _90)6.1553 _______
sc ~
r 2 ..0.99
1iilIWit:.
-
10-li+------------........-------....----1
Figure 66.Beaver Dam Si de Channel streamflow versus
WSEL rating curve at transect 4 Q Site.
142
!:!:r::=:=-:=:~=-:7'::~~"':"""":"~~------------EEFlYER Oft'!SUE C~.TIl i ra 5:1(1
RM 86.3
SfGt CBS.354
~_________NO EQUATION DEVELOPED
I~Q =10-39.1272 0 8.5346
sc ~s
r 2 =0.98
....
IOID
Figure 67.Beaver Dam Side Channel streamflow versus
mainstem discharge at Sunshine Station
(USGS 15292780)rating curve at transect 4
Q Site.
143
Figure £-37 shows that the lines depicting the base flow condition and
the breached condition do not intersect.The gap between these lines is
evidence that scour has probably occurred as a result of the August 26
flood event.
A comparison of the rating curves developed for the side channel is
presented in Figure 68.Using the controlling discharge of 47,600 cfs a
streamflow estimate of 7.1 cfs was derived from the flow versus water
surface elevation rating curve.This flow estimate is very similar to
the streamflow estimate of 6.2 cfs derived from the flow versus mainstem
discharge rating curve.
3.15.4 Channel Geometry
3.15.4.1 Thalweg Profile
Survey data for the development of thalweg profiles were obtained for
both Beaver Dam Slough and Side Channel during a non-breaching mainstem
discharge of 19,600 cfs.Streamflow was measured to be 0.7 cfs and 0.5
cfs during these thalweg profiles for Beaver Dam Slough and Side
Channel,respectively.The survey data for these thalweg profiles a.re
presented in Attachment Tables C-15 and C-16 with the resultant thalweg
profiles presented in Attachment Figures C-15 and C-16.At Beaver Dam
Slough the thalweg profile extended from the mouth of the slough
continuing upstream above transect 5 approximately 940 feet.For Beaver
Dam Side Channel the thalweg profile extended from the mouth of the side
144
"""'
"'"
-
"'"
N---NO EQUATIOlI DEVELOPED
NO EQUATIO"DEVELOPED --__~
TR4
Q •ID·Z.36ZO (WSEL _9D}6.1553 ----....,
se .
r 2 •0.99
BEAVER DAM SIDE CHANNEL
GAGE 86.354
0sc •10,39.1272 <!"s 8.5346
r Z •0.98
Q =6.2 cfs
~----
~Q=7.lcfs /
~--------~rtl
l;:j
I~
I..J
I~
13=
-,!:-,-------:.---~10ll=-----------__,l-------......---_--l.-..._-...,...-_--............
MIN:l1~"OllCHll"GC "1 511<5"1'1:llOOO~1
I
I
en I CO"TROLLEO
-Ul ~<76,200 ~Q _104.000 cr.g I'WSEL •10.1.64370.4999 +90
lD~I /r Z •0.91
~I L;f .~CONTROLlEO
I i 41.600 ~Q ~76.200 d.
WSE L =93.33/'WSEL •10,5.6434 0 1.3181 +90____J
/•0.91
~CO"TROLLEO
11.0oo.s Q.s.47.600 cr.
W5El •10,·1085 0·IZ55 +90
r Z •0.97
'00
M!N5TC"DI~MIOGC "T 5lJ'I5HI'l:1l000tr."
Fi gure 68.Comparison of rating curves for Beaver Dam
Side Channel transect 4 Q Site.
145
channel upstream to the head of the side channel.The streambed
gradient for that portion of Beaver Dam Slough included in the thalweg
survey was 10.1 feet/mile.The streambed gradient for Beaver Dam Side
Channel as determined by the thalweg profile was 13.5 feet/mile.
3.15.4.2 Cross Section Profile
Cross section data were recorded at each of the stage monitoring
stations located in Beaver Dam Slough and Side Channel.These stage
monitoring stations were located on transects 1 and 4 of Beaver Dam
Slough and Side Channel,respectively.The cross sectional data are
presented in Attachment Tables 0-37 and 0-38 with the resul tant cross
sections presented in Attachment Figures 0-37 and 0-38.
3.15.5 Backwater
Based on field observations on August 23 a backwater area extended at
least 150 feet upstream from the sloughs mouth at a mainstem discharge
of 54,600 cfs.Beaver Dam Slough was not observed breached in 1984.
Increases in stage in the slough in 1984 resulted from an intrusion of
water from Beaver Dam Side Channel entering the mouth of the slough.
Backwater is estimated to occur in Beaver Dam Slough subsequent to
breaching of Beaver Darn Side Channel or at 47,600 cfs (the controlling
discharge for Beaver Darn Side Channel).
146
-
-
-
..-
Field observations for Beaver Dam Side Channel indicate that backwater
occurs in the mouth area of this side channel during medium to high
mainstem discharges.The precise extent of backwater and associated
mainstem discharge to create the backwater has not been determined for
this side channel due to insufficient data.
3.16 Sunset Side Channel (RM 86.9)
3.16.1 Site Description
Sunset Side Channel is located on the east bank of the Susitna River at
river mile 86.9.It is approximately 1.1 miles in length and is
separated from the main channel Susitna River on the west by a network
of vegetated islands and side channels.The channel is confined on the
east by a high cut bank.Prior to breaching,the side channel is
composed of a sequence of pools and riffles.During this period,flow
is maintained by groundwater seepage and upwelling.Subsequent to
breaching,flows up to 3,900 cfs have been measured.
During the 1984 open water field season,the study site within Sunset
Side Channel was located in the lower portion of the side channel and
was approXimately 1,500 feet in length (Figure 69).Stage was monitored
at seven locations with streamflow measurements being obtained at one of
these stage monitoring stations (Figure 70).Cross section survey data
were collected at all stage monitoring stations whereas survey data for
the development of a thalweg profile It/ere collected from the first
control below the study site to the first control above the study site.
147
>-'.po
0:>
_:'.:1 1"'
,f .J
n
Figure 69.
S\lS\1 tl l'fl.\I/Efl.
..........
~''1
€aRM 87
----._..-...'-'.......\'
Overview of Sunset Side Channel and Sunrise
Side Channel study sites (RM 86.9 and R~1 87.0).
Staff Gage
Transect
EEl River Mile
o 1000(I
FEET
(Approximate Scale)
,•j J J I I J ~.i ]I J .1 J J J J I
"__:'_-t<:-~_"
-~
,
...J
W
z.
Z'
<
:J:o
W
c-rn
wrn-a:
Z
:lrn
Staff Gage
Transect
FEET
(Approximate Scale)
o
I
-~_,,:;...'1a't1O«
Figure 70.Location of Sunset Side Channel study site (RM 86.9).
c..c-"'
149
3.16.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at each stage monitor-
ing station located in Sunset Side Channel along with the mean daily
mainstem discharges at Sunshine (USGS 15292780)corresponding to the
date of the stage measurements are presented in Attachment Table B-I.
Plots of these water surface elevations versus mainstem discharges are
presented in Attachment Figures E-39 to E-45.
Measurements of streamflow in Sunset Side Channel were obtained at one
stage monitoring station which was located on transect 1.These
measurements of streamfl ow and the correspondi ng water surface
elevations and mainstem discharges are presented in Attachment To.ble
B-1.A plot of these streamflows and water surface elevations developed
as a rating curve is presented in Figure 71.These streamflow data
plotted against mainstem discharge as a rating curve are presented in
Figure 72.
3.16.3 Mainstem Breaching and Controlling Discharges
Breaching of Sunset Side Channel results from the direct overtopping of
the head of the side channel by the mainstem Susitna River.Based on
field observations and aerial photography this side channel was found to
be "barelyll breached at 32,000 cfs and dry at 22,000 cfs.A revi ew of
the stage data presented in the transect 1 (streamflow station)water
surface elevation versus mainstem discharge plot (Attachment Figure
E-40)indicates that the hydraulics of Sunset Side Channel become
150
-
'"'"
,-..
--
-
....
~SU4Scr SlOE CtflNNtL.n 1 (Q StTE:)
R!"l BS.S
SRi£:CBS.951
Q ..'10-0.5735 (WSEL _90)4.3094
sc
r 2 ..0.99
c
WSE:L.(...90 r!:E!I
10
Figure 71.Sunset Side Channel streamflow versus WSEL
rating curve at transect 1 Q Site.
151
!:!~scr SUE Q-IFINNEl.TR ]((1 511£:)
RM 86.S
SRi£:caS.9S]
Q 2 10-17.7598 Q 4.3004
sc ms
r 2
2 0.99
~-
-
_.
-itO-------~-----"""":I::OO:-------------...J
MfHN51f:M DI.501I'l~I'IT S~t1!t.l:(loaOenl llXJJ
Si de Channel streamflow versus
discharge at Sunshine (USGS
rating curve at transect 1 Q
Sunset
mainstem
15292780)
Site.
Figure 72.
152 -
iiilkR i
-
•i
,....
controlled by the mainstem at a discharge of 32,000 cfs.Based on this
controlling discharge and the limited field observations an initial
breaching discharge of 31,000 cfs has been estimated for this side
channel.
A comparison of the transect 1 rating curves (Figure 73)has been
developed to evaluate the influence mainstem discharge has on the
hydraulics of Sunset Side Channel.At the controlling discharge of
32,000 cfs,flow in this side channel has been estimated to be 45.8 cfs.
This compares to an estimated flow of 41.4 cfs derived from the flow
versus mainstem·discharge rating curve.Table 3 summarizes the
comparisons of flo\l!estimates determined from equations developed from
rating curves for controlling mainstem discharges for transect 1.
3.16.4 Channel Geometry
3.16.4.1 Thalweg Profile
Survey data for the development of a thalweg profile were obtained in
Sunset Side Channel at a 1l1ainstem discharge of 17,400 cfs while site
flow was estimated to be 1 cfs.The thalweg profile extended upstream
from approximately 400 feet below the mouth of the side channel through
the study site to a point 2,500 feet into the side channel.The survey
data used to develop the thahveg profile are presented in Attachment
Table C-17 with the resultant thalweg profile being presented in
Attachment Figure C-17.Based on this thalweg profile,a gradient of
9.5 feet/mile was determined for the Sunset Side Channel.
153
Q=41.1 cfs
I
I~
18
I~-
I~
I
0sc'10-17.75980..4.3004
,2 •0.99
0sc'10-0.5735 (WSEl -90)4.3094
,2 •0.99
Q =45.8 cfs
t
I
10
I~
01I~
J~
13=
/
-
-
"""
.....
-::~.-----,.J-"""""''''''''''''~\oar--------''''''''''''''''''''''I<aI _,,"........,.....J..__-......-_....................._
""l"'Ten Dt'Cl1"".'%/IT 51,fflHltC {loaoenl
t
~I
81
~I
;1
I§WSEL=93.30
J2,nno S a s..t04,OOO cf'S
WSEl'10,3.7766 QO.9533 •90
,2 •0.99
SUNSET SIDE CHANNEL TRI
GAGE 86.9SI
:--....-/NOT CONT~Oll EO
~17,400 ~°~32,0000"
W5El '100.44930°.0155 •90
r 2 '::'0.57
'001
Fi gure 73.Comparison of rating curves for Sunset Side
Channel transect 1 Q Site.
154
-
-
-
3.16.4.2 Cross Section Profile
Cross section survey data were obtained at each of the seven transects
located in Sunset Side Channel.The survey data are presented in
Attachment Table D-39 to 0-45 with the resultant cross section profiles
being presented in Attachment Figures 0-39 to 0-45.
3.16.5 Backwater
Based on available stage data (Table 8)and channel geometry data
(Attachment Figure C-17),a backwater area does not occur in the side
channel during unbreached conditions.
At breaching mainstem discharges ranging from 56,000-66,700 cfs,an area
of backwater is estimated to extend upstream approximately 1,100 feet
from the beginning of the thalweg profile to a point between transects 1
and 2.Above 66,700 cfs,insufficient stage data is available to
determine the extent of backwater in Sunset Side Channel.
3.17 Sunrise Side Channel (RM 87.0)
3.17.1 Site Description
Sunrise Side Channel is located on the west bank of the Susitna River at
river mile 87.0.It is approximately 0.5 miles long and is separated
from the mainstem by vegetated islands (Figure 69).
155
Table 8.A comparison of water surface elevations from Task 14 staff gages located within Sunset Side
Channel.
Mainstem
Date TR 0 TR 1 TR 2 TR 3 TR 4 TR 5 TR 6 Discharge
841005 ---------93.74 ---94.75 94.74 16,500
840929 92.70 93.27 93.81 ------94.76 94.75 17,400
840930 ---93.27 93.79 93.69 94.11 94.75 94.75 17,800
840916 ---93.29 93.81 93.87 94.11 94.76 94.76 21,000
840912 ---93.29 93.81 93.78 94.29 94.78 ---22,700
840913 ---93.30 ---------------22,700
840914 ------93.81 93.87 94.31 ------24,000
I-l 93.29 93.87 94.31 94.76 94.76 28,40011l840919---93.80
0"1
840902 ------------------94.88 32,000
840817 ---94.34 ---94.93 95.01 95.99 95.97 42,500
840816 ---------95.02 95.10 96.06 96.05 44,000
840822 95.54 95.53 95.71 95.86 95.93 96.66 96.62 54,300
840803 95.60 95.58 95.68 95.95 95.93 96.72 96.69 54,700
840709 ---95.59 ------95.92 ------55,400
840709 ---95.69 95.94 96.01 96.08 96.79 ---55,400
840723 ---95.58 ---------------56,100
840723 95.58 95.58 95.64 95.85 95.95 96.65 ---56,100
840721 ---95.45 ---------------57,700
840722 95.09 95.67 95.76 95.86 95.96 96.68 96.64 57,800
840722 95.62 ---95.78 95.94 95.98 96.68 96.65 57,800
.J I ••I J I J J J )J I J •j
I -)1 1 1 --J »-1 -J -J ]-)1 1
>-->
tn
-....J
Table 8 (Continued).
Mainstem
Date TR 0 TR 1 TR 2 TR 3 TR 4 TR 5 TR 6 Discharge
840808 ---96.63 ---------------65,900
840808 96.67 96.67 ---96.86 96.89 97.31 97.21 65,900
840807 96.68 96.69 ---96.89 96.96 97.36 97.29 66,700
840825 ---99.42 ---------------93,300
840826 ---99.88 ------ ------ ---
104,000
Breaching of this side channel by the mainstem results in substantial
flow in the side channel whereas pri or to breach i ng the channe 1 is
substantially dewatered.During high mainstem discharges a backwater
area forms in the vicinity of the mouth.
Ouri ng the 1984 open water fi e1d season the study site selected for
Sunrise Side Channel was located in the lower portion of the side
channel.Stage was monitored at one location with streamflow measure-
ments obtained at thi s stage monitori ng stati on (Fi gure 74).Channel
geometry data obtained include both cross section and thalweg profiles.
A cross section was surveyed at the stage monitoring station and a
thalweg profile was determined from the mouth of the side channel
continuing upstream to the first hydraulic control above the study site.
3.17.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at the stage monitor-
ing station located in Sunrise Side Channel along \'lith the mean daily
mainstem discharge (USGS 15292780)corresponding to the date of stage
measurement are presented in Attachment Table B-1.A plot of these
water surface elevations versus mainstem discharge are presented in
Attachment Figures E-46.
Measurements of streamflow in Sunrise Side Channel were obtained at the
stage monitoring station which is located on transect 4.These measure-
ments of streamflow and the correspondi ng water surface el eva ti on and
158
'""'
....,
'"'"
-
"""
-
250
I
6 Staff Gage
Transect
o
!
FEET
(Approximate Scale)
/i~.n
Location of Sunrise Side Channel study site (RM 87.0).Figure 74.
,-
159
mainstem discharge (USGS 15292780)are presented in Attachment Table
8-1.A plot of these streamflow and water surface elevations was
developed as a rating curve to estimate streamflow from observed water
surface elevations (Figure 75).
The streamflow data was also plotted against mainstem discharge as a
rating curve to estimate streamflow from mainstem discharge (Figure 76).
3.17.3 Mainstem Breaching and Controlling Discharges
Breaching of Sunrise Side Channel is the result of overtopping of the
head directly by the mainstem Susitna River.The lowest mainstem
discharge observed to overtop the head of this side channel is 36,600
cfs and was determi ned from a revi ew of aeri a 1 photographs (Table 2).
At 36,600 cfs a substantial volume of water overtopped the head.At a
di scha rge of 32,000 cfs the head of the side channel was observed dry.
An estimated initial breaching discharge of 34,300 cfs was chosen and is
an average of the breaching discharge of 36.600 cfs and the dry
observation occurring at 32,000 cfs.
An absence of stage data below 45,400 cfs precludes the precise
determination of a controlling discharge for Sunrise Side Channel.
Assuming the estimated breaching discharge of 34,300 cfs is correct and
that a controlling discharge is usually within 2,000 cfs of the
breaching discharge,a controlling discharge of 36,000 cfs has been
-
-.
-
-
-
estimated for this side channel.Additi anal stage data,. .,pnman ly
160
lo<!r':"""""':"":'"~~~"""'-"""'--------------------"'"-St.t;RlSE SlOE D'lf!NI'£L TR"!CO S[TO
RM 87.0
GPG!:Cl37.OS4
-
-
"""
Q 10-2.1001 (WSEl _90)5.8379sc..
r 2 ..0.99
Io'lSEL r-sa "!zj)
IQ
Fi gure 75.Sunrise Side Channel streamflow versus WSEL
rating curve at transect 4 0 Site.
161
l:lr::5JN::-:::R:":'r=se:-:S';";[(]::E~01:":"::R~I'lNEL~~T'R=-:'i-(~a~S:":[~TE:::)~-------------
~87.0
GRit 087.0'3"\-
Q ;10-20.8511 Q 4.8592
sc ms
r 2 "~.98.
~,
,....
-
!fllWl
Fi gure 76.Sunri se Side Channel streamflow versus
mainstem discharge at Sunshine (USGS
15292780)rating curve at transect 4 Q
Site.
~!
162
..-
during a non-breached condition,is necessary to precisely determine the
controlling discharge for Sunshine Side Channel.
A comparison of the rating curves developed from transect 4 is presented
in Figure 77.At the estimated controlling discharge of 36,000 cfs a
streamflow of 29.2 cfs was estimated from the flow versus water surface
elevation rating curve.This compares to 21.1 cfs determined from the
flow versus mainstem discharge rating curve.
3.17.4 Channel Geometry
3.17.4.1 Thalweg Profile
Survey data for the development of a thalweg profile for Sunrise Side
Channel was obtained during a non-breaching mainstem discharge of 19,000
cfs and an estimated side channel streamflow of less than 1 cfs.The
survey data for this thalweg profile are presented in Attachment Table
C-18 with the resultant thalweg profile presented in Attachment Figure
C-18.This thalweg profile extended from the mouth of the side channel
upstream to approximately 520 feet above transect 6.The streambed
gradient of the side channel included in the thal\o./eg profile was 16.0
feet/mil e.
3.17.4.2 Cross Section Profile
Cross section data were recorded at the stage monitoring station located
in Sunrise Side Channel.This stage monitoring station was located on
163
-----------------------------
_.
-
.....
-
Os<•10.2•1001 (WSEL •9015.8379
,2.0 •99
Q=27.1 cts
SUNRISE SIDE CHANNEL TR4
GAGE 87.0S4
Os<•10.20.8511 Q,,/.8592
.2 •0.98
Q=19.4cts---i I
!!,:!I I,..,
o ~I~01 ;~g~1 I~~I I~~I~
oj I~
I I-,~;-------:--~-,~oa----.....--.....-__"L-----_---_--.,!.--.--:'.,.
"~[N5TC"CI5CMIlGt ..,.'\NlMltf:l1lJOOC"':1l
~
i loo~mI,f 36.000 .$Q .$104,000 cfs
V I/SEL •10-2 •8383 Q.7558 +90
WSEL:;_94.03
,2 •0.98
-,
~:
Figure 77.Comparison of rating curves for Sunrise
Side Channel transect 4 Q Site.
164
-
transect 4 (Attachment Figure C-18).The cross sectional data are
presented in Attachment Table 0-46 with the resultant cross section
presented in Attachment Figure 0-46.
3.17.5 Backwater
Field observations indicate backwater was restricted to the mouth area
of the side channel and the lower portion of the study site and occurred
during medium to high mainstem discharges.Due to the limited 1984
stage data (Attachment Table B-1),the precise determination of the
occurrence and the extent of backwater for Sunrise Side Channel was not
possible.
3.18 Birch Creek Slough (RM 88.4)
3.18.1 Site Description
Birch Creek Slough is located on the east bank of the Susitna River at
river mile 88.4 This slough is approximately 5 miles long with Birch
Creek joining the slough about 1 mile upstream of Birch Creek Slough
mouth.A road crosses the slough approximately 0.2 miles below the
slough head through which breaching flow is restricted by a 24 inch
diameter culvert.The culvert was observed to be substantially plugged
by debris throughout the 1984 field season and served to control
breaching mainstem water into the slough.Prior to breaching streamflow
is maintained by Birch Creek with the slough upstream of Birch Creek
165
consisting of a series of isolated pools.Backwater was observed to
occur in the lower portion of Birch Creek Slough except during periods
of low mainstem discharge (Figure 78).
During the 1984 open water field season the study site in Birch Creek
Slough was located approximately 0.3 miles downstream from the
slough/creek confl uence and approx imate ly 0.7 m"i 1es upstream from the
slough mouth.Stage was monitored at three locations and streamflow was
measured at one of these stage monitoring stations (Figure 79).Channel
geometry data obtained for the site included both cross section and
thalweg profiles.Cross sections were obtained at each stage monitoring
station with the exception of the head staff gage site.The thalweg
profile was determined for only the portion of the slough that included
the study site.
3.18.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at the stage monitor-
ing stations located in Birch Creek Slough are presented in Attachment
Table B-1.Birch Creek is located upst'ream of the slough study site.
Plots of water surface elevation versus mainstem discharge for the stage
monitoring stations located downstream of Birch Creek were not developed
due to the influence of Birch Creek upon the stage observations.The
water surface elevation versus mainstem discharge plot for the Birch
Creek head stage monitoring station is presented in Attachment Figure
E-47.Measurements of streamflow in Birch Slough were obtained at the
stage monitoring station located on transect 6.These measurements of
166
-
-
-.
-
-.
2250
I
o
t
FEET
(Approximate Scale)
,~~~~\~
Figure 78.Overview of Birch Creek Slough study site (RM 88.4).
-
-
-
167
168
.,....
l/l
.,....
00
'+-o
l::o.,....
~
rcl
Uo
.....J
-
~,
-
-
-
-
.-.
..--
.-
streamflow and the corresponding water surface elevation are presented
in Attachment Table 8-1.A plot of the streamflow and \"ater surface
elevations was developed as a rating curve to estimate streamflow from
observed water surface elevations (Figure 80).
3.18.3 Mainstem Breaching and Controlling Discharges
Breaching of Birch Creek Slough results from overtopping of the head by
the mainstem Susitna River.Based on field observations presented in
Table 2,Birch Creek Slough has been described as llbarely"breached at a
mean daily mainstem discharge of 52,900 cfs,54,300cfs and 57,800 cfs.
The instantaneous mainstem discharges at the time of these observations
are 54,100 cfs,54,200 cfs and 57,900 cfs,respectively.The mean daily
discharge of 57,800 cfs and the corresponding instantaneous discharge of
57,900 cfs are USGS estimates occuring during a period when the USGS
gaging station was non-functional.The head of the slough is primarily a
silt bar subject to erosion and deposition.A discharge of 54,100 cfs
has been selected as the initial breaching discharge,due to the
unstable nature of the berm at the head.Initial breaching discharge
may fluctuate resUlting from shifting of the substrate during high flow
events.
A review of the water surface elevation versus mainstem discharge data
recorded at transects 2 and 6 (Attachment Table B-1)indicate that the
hydraulics of Birch Slough are substantially influenced by Birch Creek.
Because of the influence of Birch Creek,a relationship between mainstem
discharge and stage at transects 2 and 6 cannot be determined (both
169
1'j BIRCH CRUJ<TR 6 lO SITE)
~88.i
G.Q;C 008.iSl
-
-
-
10-2.3589 (WSEl _280)7.0569
r 2 =0.98
10
-
-
Figure 80 Birch Creek Slough streamflow versus WSEL
rating curve at transect 6 Q Site.
170
-
.-
..-
transects are located downstream of Birch Creek).The controlling
discharge cannot be determined from the available data due to the
contribution of Birch Creek to streamflow in the slough.
3.18.4 Channel Geometry
3.18.4.1 Thalweg Profile
Survey data for the development of a thalweg profile for Birch Creek
Slough was obtained during a non-breaching mainstem discharge of 18,300
cfs and measured slough flow of 34.0 cfs.The flow in the slough was
contributed primarily by Birch Creek.The survey data for this thalweg
profile are presented in Attachment Table C-19 with the resultant
thalweg profile presented in Attachment Figure C-19.This thalweg
profile extended from the mouth of the slough upstream to approximately
700 feet above transect 6.The streambed gradient of the slough
included in the thalweg profile was 4.9 feet/mile.
3.18.4.2 Cross Section Profile
CtOSS section data were recorded at the two stage monitoring stations
located in Birch Creek Slough.These stage monitoring stations
corresponded to transects 2 and 6 (Attachment Fi gure C-19).The cross
sectional data are presented in Attachment Tables D-47 and D-48 with the
resultant cross sections presented in Attachment Figures D-47 and D-48.
171
3.18.5 Backwater
Du ri ng the 1984 open water fi e1d season the study site se 1ected for
Birch Creek Slough was located approximately 0.7 miles upstream from the
mouth of the slough (see Section 3.14.1 of this report).Based on
available 1984 stage and channel geometry data a precise backwater
analysis is not possible due to the location of the study site.Field
observations indicate,however,backwater occurs at the mouth of the
slough during all but low mainstem discharge.
3.19 Trapper Creek Side Channel (RM 91.6)
3.19.1 Site Description
Trapper Creek Side Channel is located on the west bank of the Susitna
River and is approximately 5.0 miles in length.It is separated from
the mainstem Susitna River by a complex of sand bars,small channels,
and vegetated islands.The head portion of this side channel is located
in a complex of small channels and vegetated islands making it difficult
to identify the origin of breaching flows (Figure 81).Depending upon
mainstem discharge,the mouth of Trapper Creek Side Channel is also
difficult to identify due to the presence of several intersecting small
channels.At low mainstem discharges,the mouth of Trapper Creek Side
Channel appears to extend downstream to river mile 90.3.Breaching
flows in Trapper Creek Si de Channel result from the overtopp;ng of
severa 1 overfl ow channels located throughout the upper porti on of the
side channel.Prior to breaching,streamflow in Trapper Creek Side
172
-
-
-
-
-
-
-
--
Figure 81.Overview of Trapper
study site (RM 91.6).
173
/~tt:~1.1EB
Creek Side Channel
Channel,is principally due to Cache Creek and ground water occurring in
the upper reach of the side channel.
During the 1984 open water field season,the study site selected for
Trapper Creek Side Channel was located in the lower portion of the side
channel (Figure 82).Stage was monitored at four locations and stream-
flow was measured at one of these stage monitoring stations.Survey
data for the development of cross section profiles was obtained ft"om
each stage monitoring station.Survey data for the development of a
thalweg profile was obtained for only that portion of the side channel
that included the study site.
3.19.2 Stage/Discharge Relationship
Measurements of water surface elevations obtained at each stage monitor-
ing station located in Trapper Creek Side Channel along with mean daily
mainstem discharges (USGS 15292780)corresponding to the date of the
stage measurements are presented in Attachment Tabl e 8-1.Plots of
these water surface elevations versus mainstem discharge are presented
in Attachment Figures E-48 to E-51.
Measurements of streamflow in Trapper Creek Side Channel were obtained
at one stage monitoring station located on transect 4.Measurements of
streamflow and corresponding water surface elevations and mainstem
discharges (USGS 15292780)are presented in Attachment Table 8-1.A
plot of these streamfloltJs and water surface elevations developed as a
rating curve is presented in Figure 83.The streamflow data \l1aS also
174
-
-
1 I };)1 •}1 1 j
6 Staff Gage
Transect
o 250
I I
FEET
(Approximate Scale)
,,,.,....
1'(
,,~"~~'t~l'""-~.'~;'"'!:I
.,...;,....,..':'"'""I,r p.~,'jl,~~,j.,.',.',,...;1/'','''''j/f '.,.,"""'._":):I'~~i ,~~/",Itl,4ll!t''"i!11 i.;l'il',li!,••\fd.:-.'t ,,',"'il,i""',"
.-.
'--J
{Jl
Figure 82.Location of Trapper Creek Side Channel study site (RM 91.6).
!:!TRAPPER CREEK SIC 1R 'i (Il SHE)
Rl'1 91.6
GFGE:091.651
Q =100.6037 (WSEL _90)3.6448 ~sc
r 2 =0.98
-~Q •10-2.0521 (WSEl -90)8.2433 ____
.:::sc ~
%r 2 =0.99o
....I""u..:2
aw
5
U"Ia::
~
j~Q =10-3.5525 (WSEl -90)11.6511
sc
r 2 =0.84
10
~I
-
-
-
-
Fi gure 83.Trapper Creek Si de Channel streamflow
versus WSEL rat;ng curve at transect 4 Q
Site.
176
_.
-
-
plotted against mainstem discharge as a rating curve and is presented in
Figure 84.
3.19.3 Mainstem Breaching and Controlling Discharges
Breaching of Trapper Creek Side Channel is the result of the direct
overtopping of the head of the side channel by the mainstem Susitna
River.Based on aerial photography (Table 2),this side channel has
been observed to be breached at a mainstem discharge as low as 36,600
cfs.The controlling mainstem discharge has been estimated from
inspection of the stage versus mainstem discharge rating curve for
transect 4 (Attachment Figure £-51)to be 44,000 cfs.The mainstem dis-
charge of 44,000 cfs was chosen because it is the point of intersection
of the lines depicting the base flaw unbreached condition and the
breached condition observed at the streamflow station.This relation-
ship is also presented in the water surface elevation versus mainstem
discharge plots for transects 2 and 3 (Attachment Figures E-49 and
E-50).Figure 85 illustrates a comparison of transect 4 rating curves
that was developed to evaluate the influence mainstem discharge has on
the hydraulics of Trapper Creek Side Channel.At a mainstemdischarge
of 44,000 cfs streamflow was measured to be 31.4 cfs.
The substantial differences in mainstem discharge between the lowest
observed breaching discharge (36,600 cfs)and the estimated controlling
discharge (44,000 cfs)is suspect.Based on observations from other
study sites the initial breaching and controlling discharge are usually
177
e TRAPPER CREEK sIC TR '1:(Q 51 If:)
RM 91.6
GAGE:OS 1.65 1
"'"
8co
I+----Q =10.15.9591 Q 3.9158scms
r 2 =0.99
Q =10.42.5803 n 9.4931
sc ~s
r 2 =0.99
~Q =10.2.8293 n 0.9316
sc ~s
r 2 =0.99 -
:cc
MfUNSl[;"O!SCHF!RGE /'IT SUNSHINE:CIOOOcnJ
10Cl'J
Fi gure 84.Trapper Creek Si de Channel streamflow
versus mainstem discharge at Sunshine
Station (USGS 15292780)rating curve at
transect 4 Q Site.
178
/.° .100.6037 (~SEL _90)3.644 8 _______
sc ~
.2 •0.98
_0sc •10·15.9591 o"s 3.9158
r 2 •0.99
_0 •10.3.5525 (W5EL -gO)\1.6"1\
I 'cd .2 •0.84
0sc •10.2•0521 (~SEL .90)8.2433 __
.2 •0.99
Q=31.4 cfs
-of-----
0sc •10.2•8293 0".0.9316
,2 •0.99
--0sc •10.42.5803 o"s 9.4931
.z.0.99
Q=31.4cfs
-
..+,---...--...-....JL....-.............;~<C--------...............-,=_':+,------....--.............--......-.....-......-----
r1IIIN5lcn 015Cli~1IGI:til ~'J'~~I~f10cocnl "SCl (.90 rEtl)10
~t
't;\
gl
o~I
<:t
~,
°1
I
I
'-CONTROL LEO
'4,000 s;°s;93.300 ofs
WSEl •10.4.945501.1565.gO
.2.0.95
TRAPPER CREEK SIC TR4
GAGE 91.651
15.000 ~Q ~".000 cf,
W5El •100.oeo 1 00.0756 •gO
r 2 •0.83
-,r--------..................-.'or.:'o----.---------
n~ttl51C~C1SCHlll!Gt ..-;~lMHINl:{ICOOtr:ll
Fi gure 85.Comparison of rating curves for Trapper
Creek Side Channel Transect 4 Q Site.
179
simi 1a r.The breachi ng observation correspondi ng to 36,600 cfs was
determined from a 1983 aerial photograph.Based on the stage/discharge
rel ati onshi ps for the nonbreached and breached conditi on presented in
Attachment Figures E-48 to E-51 the initial breaching and cantrall ing
discharges for this side channel appear to be similar.Assuming the
initial breaching discharge is less than and occasionally equal to the
controlling discharge,an initial breaching is estimated to be 43,000
cfs.
3.19.4 Channel Geometry
3.19.4.1 Thalweg Profile
Survey data for the development of a thalweg profile was obtained from
Trapper Cl~eek Side Channel during a mainstem Susitna Rivel'discharge of
22,700 cfs and a measured side channel flow of 16.4 cfs.The thalweg
profil e began approximately 150 feet downstream of the fi rst control
below the study site and extended upstream,through the study site,
approximately 1,600 feet.The survey data used to construct the thalweg
profile are presented in Attachment Table C-20 with the resultant
thalweg profile being presented in Attachment Figure C-20.Based on
this thalweg profile,a streambed gradient of of 12.1 feet/mile was
determi ned.
180
-
-
--
-
-
3.19.4.2 Cross Section Profile
Cross section survey data was obtained at each of the four transects
located in Trapper Creek Side Channel.The survey data used to con-
struct these cross sections are presented in Attachment Tables 0-49 to
0-52.The resultant cross section profiles are presented in Attachment
Figures 0-49 to 0-52.
3.19.5 Backwater
Based on stage (Table 9)and channel geometry (Attachment Figure C-20)
data,an area of backwater has not been observed in Trapper Creek Side
Channel during both non-breaching and breaching mainstem discharges.At
mainstem discharges ranging from 15,700 to 22,700 cfs,pooling was
observed at transects 1,2 and 3 resul ting from the hydraul ic control
located approximately 373 feet downstream from transect 1.
181
Table 9.A comparison of water surface elevations from Task 14 staff gages located within Trapper Creek
Side Channel.
rvla i nstem
Date TR 1 TR 2 TR 3 TR 4 Discharge
841009 ------92.12 92.50 15~000
841006 91.92 91.90 92.14 92.51 15,700
840930 91.93 91.92 92.14 92.47 17~800
840917 91.95 91.93 92.19 92.53 20~400
840924 91.94 91.93 92.17 92.55 20,400
840918 91.95 91.95 92.18 92.60 20~900
840913 91.97 91.95 92.16 92.56 22~700
~840911 92.14 92.56 23~500co------N
840911 ---------92.58 23~500
840816 92.34 92.00 92.15 92.70 44~000
840822 92.76 92.51 92.82 93.27 54~300
840803 92.93 92.69 93.02 93.18 54~700
840803 ---------93.42 54~700
840708 ---------93.78 57,100
840819 92.90 92.69 93.04 93.23 57~200
840721 93.11 92.96 93.22 93.63 57~700
840721 93.15 93.00 93.32 94.08 57~700
840722 93.06 92.89 93.26 93.61 57,800
840722 ---------93.62 57~800
I )t J .~,.~1>.J J 1 I ,I I J
'}}]'}}1 -..J }I
Table 9 (Continued).
~1a ins tern
Date TR 1 TR 2 TR 3 TR 4 Discharge
840707 ---------93.89 58,800
840707 ---------93.89 58,800
840807 93.75 93.66 94.06 94.18 66,700
840807 93.76 93.68 94.08 94.21 66,700
840624 ---------94.41 70,100
840624 ---------94.75 70,100
840825 ---------96.28 93,300
840825 ---------96.42 93,300
I-'
OJ
W
~\
....
4.0 SU~1MARY
The stage,discharge,and channel geometry data presented in this
technical report is the result of field investigations conducted from
May to October,1984.During this period,mean daily Susitna River
discharge at the USGS Sunshine gaging station (USGS 15292780)ranged
from a low of 6,000 cfs in May to a high of 104,000 cfs in August.A
review of the hydrograph developed from mean daily discharges recorded
at Sunshine for the period of record (Figure 86)shows that daily flow
during the 1984 open water field season generally followed previous
years trends.
Based on evaluation of stage data collected at each study site during
both the nonbreached and breached hydraulic conditions mainstem
discharge was found to influence the hydraulic conditions of each of the
Task 14·side channel and slough study sites.At Island,Circular,
Sunset,Beaver Dam,Rustic Wilderness and Trapper Creek Side Channels
sufficient data were obtained for the development of rating curves
describing the relationship between mainstem discharge and study site
water surface elevations during the unbreached hydraulic condition.
This portion of the water surface elevation versus mainstem discharge
rating curve is characterized by a regression line having little or no
slope over incremental increases of mainstem discharge.Due to limited
data,however,the portion of the rating curve for the non-breached
condition has not been firmly established for any of these sites.
184
~5HI~-1962
OCTSEP
~
AUGJUL
{:
"',::'",,,.
:,:~I
,'"I I.'.if i \1:':\;;'\I I":',/\:\(1);:,;~~•I::,:'::::',:1'\I II..,,;.~J :;::\.,I.'\..:'....:,..,;.'...\
¥'.'.","'..,..'.;; ,,.:~"'j\...·..,.,\I ;., · ·f\'-V·.....,•..~,.'.•,
II .'v \'",'C',...
......J\.\' .1\\1\
.\...'~.:\.~·············.........1,}\.,v,."'-....
......~,.,
'....
I
$
.~
JUNMAY
~SHII£-19lD
SlJi5HIN(-1961
~SHlt£-1981
I !lllXll
IN1Xl
lmm
IJ5CU1
IJcnD
t25Cm
J2[OD
11SOXl
110ClXl
IOSOCU
IOOCXlJ
95000
9CUJJ
ll~
800Xl
7500)
7(0])
.......65(lIJ
00
(J"l SlXXXl
SS£OJ
50C0J
45£l1l
10cm
35IDJ
3lXXXJ
25COJ
2IXUJ
IS(U)
IOCOJ
5lXXl
Figure 86.Susitna River hydrograph for May-October 1981,1982,1983
and 1984 at Sunshine Station (USGS 15292780).
t I .~J J ~I 1 I I I,!)I ;.~~]
-
-
The determination of initial breaching discharges for each study site
proved to be difficult as only limited observations were available which
could be used to determine when study site breaching initially occurred.
The range of mainstem discharge which afforded these observations,
subsequent to study site selection,only occurred during a brief period
in late August and early September during which time mainstem discharge
decreased rapidly.As a result,the initial breaching discharges
presented in this report are a compilation of field observations and
reviews of aerial photographs.Aerial photography,however,does not
always allow the resolution necessary for determining when the head of a
study site is initially breached.A summary of the initial breaching
discharges determined for the Task 14 study sites is presented in Table
10.
As progressively higher mainstem discharges overtop the head of the
study site,the hydraulic conditions of the study site become controlled
by mainstem discharge.The point at which this occurs is termed the
controll ing breaching discharge and is reflected on the water surface
elevation versus mainstem discharge rating curves as a definite change
in slope of the regression line.The non-breached conditions are
usually reflected in these curves as having regression lines which are
nearly horizontal or,in some instances,having a slight slope.Once
the hydraulics of the study site become directly controlled by mainstem
discharge the slope of the line dramatically changes due to the
influence of mainstem discharge.
186
-
-
Table 10.Initial breaching discharges,controlling discharges and streamflow estimates
corresponding to controlling discharges for the 1984 Task 14 study sites.
Estimated
Flow
vs
Q~1S
(cfs)at
Discharge
WSEL
vs
Flow
Streamflow
Controlling
Crontroll i ng
Breaching
Discharges
Initial
Breaching
Discharges
River
MileLocation
Hooligan Side Channel
Eagle's Nest Side Channel
Kroto Slough Head
Bear Bait Side Channel
Last Chance Side Channel
Rustic Wilderness
Side Channel
Island Side Channel
35.2
36.2
36.3
42.9
44.4
59.5
63.2
23,100
14,000
36,000
25,900-36,600a
22,700
19,000
34,000
23,500
15,000
38,000
a
24,000
20,400
35,000
46.5
55.4
b
b
b
43.5
48.6
67.3
b
1.3
b
68.8
....
.~
-
Mainstem West Bank
Side Channel
Goose 2 Side Channel
Circular Side Channel
Sauna Side Channel
Sucker Side Channel
TR2
TR5
Beaver Dam Side Channel
Beaver Dam Slough
Sunset.Side Channel
Sunrise Side Channel
Birch Creek Slough
Trapper Creek Side Channel
74.4
74.8
75.3
79.8
84.5
86.3
86.3
86.9
87.0
88.4
91.6
19,000
30,000
36,000
37,000
27,500
46,000
a
31,000
34,300
54,100
44,000
19,600
32,000
36,000
38,000
29,000
47,600
a
32,000
36,000
d
44,000
26.3
26.8
22.5
10.°24.5
7.1
b
45.8
29.2
d
21.7
26.8
19.9
10.2
1 2.1
6.2
b
41.4
21.1
d
~,
a Insufficient information is available to determine initial breaching and controlling
discharge.
b Insufficient information is available to estimate streamflow at the controlling
discharge.
c These streamflow values are actual measurements of discharge and are not estimated
values.
d Birch Creek tributary influence precludes the determination.-
187
.....
In most water surface elevation versus mainstem discharge rating curves,
the lines defining the non-breached and breached controlled conditions
intersect.Several gage sites,however,exhibited a gap in elevation
between the nonbreached and controlled conditi ons.Thi sis specul ated
to result from changes in channel geometry.A high flow event (104,000
cfs)occurred on August 26 which could have caused such channel
movement.Field observations have noted that the character of the side
channel morphology (gravel substrate)at each study site is susceptible
to movement.
The information derived from the rating curves and the intial breaching
information were used to determine the controlling discharges presented
in Table 10.These controlling discharges are the best determination of
the controlling mainstem discharges based on available data collected to
date.
Because of the distances between the Sunshine gaging station and certain
lower river study sites,a lag time curve was developed to analyze the
travel time required for a flood wave to move from the Sunshine gaging
station to the Susitna gaging station.Using this analysis,several
water surface elevations presented in Attachment Table B-1 were
evaluated for time lag.Time lag analysis was applied for those study
sites located a substantial distance downstream of the Sunshine Station
for periods of high flow events.A further discussion of the lag time
curve development is found in Attachment A.
188
Thalweg profiles were developed for each of the Task 14 study sites.
These thalweg profiles included that portion of the channel included in
the study site only.From these thalwegs the gradient of the streambed
for the study site was estimated and the thalwegs were used in
determining extent of backwater when sufficient stage data were
available.Table 11 summarizes the thalweg gradient for each study
site.
Backwater areas were found to occur at several of the Task 14 study
sties.The most apparent backwater areas were located at Caswell,Rolly
and Birch Creeks,and Beaver Dam Slough.At Caswell Creek,Rolly Creek
and Beaver Dam Slough backwater was reflected in the streamflow
measurements.At several of the remaining study sites the stage data
was too limited to precisely determine the extent of backwater.Also
many study sites were located near the head of the side channel or
slough precluding a backwater analysis.Six Task 14 side channel study
sites were also included in the Task 36 study (Island,Mainstem ~Jest
Bank,Circular,Sauna,Sunset and Trapper Creek Side Channels).Due to
the nature of the Task 36 study several stage monitoring stations were
located in these side channels allowing a comparison of water surface
elevations throughout the study site.A comparison of water surface
elevations enabled a general backwater evaluation of these six side
channels.A summary of the extent of backwater as determined by stage
observations for these six side channels as well as the range of
ma instem di scha rges correspondi ng to the occurrence of backwater is
presented with the summary of thalweg gradients in Table 11.
189
_.
-
Table 11.Summary of the extent of backwater and corresponding mainstem discharge for
Task 14 study sites.,...
i
-Extent
of Backwater
on Study Mainstem
Site Thalweg Discharge Gradient Head
Location RM (ft)(cfs)(ft/mi)Condi ti on
r-
Hooligan
N/A aSideChannel35.2 8.9
Eagl e I s Nest
N/A aSideChannel36.2 8.9
Kroto Slough
N/A aHead36.3 7.0
Rolly Creek 39.0 3,750 52,500 5.5 Tributary
Bear Bait
Side Channel 42.9 N/A a 1.9
Last Chance
N/A aSideChannel44.4 10.1
Rustic Wilderness
N/A aSideChannel59.5 8.7
Caswell Creek 63.0 1,026 55,100b 10.8 Tributary
Island
Side Channel 63.2 1,100 35,000-38,000 15.6 Breached
570 56,100-66,700 Breached
Mainstem West Bank
Side Channel 74.4 N/A N/A 12.3 Breached
Goose 2
N/A a.....Side Channel 74.8 9.2
Circular
Side Channel 75.3 1 ,141 42,500 14.3 Breached
1,300 55,200-66,700 Breached
Sauna
Side Channel 79.8 Throughout 54,600-56,000 10.4-Breached
study site
(1,027 feet)
Sucker
Side Channel 84.5 Throughout 66,400-76,200 7.2 Breached
study site
(750 feet)
Beaver Dam 86.3 N/A b 47,600 10.1 Non-Breached
Slough 150 54,600 Non-Breached
Beaver Dam
N/AcSideChannel86.3 13.5
I"""'
a Backwater was not present at study site.b Insufficient data available to determine upstream extent of backwater at higher
c mainstem discharges.
Insufficient data available to determine occurrence and extent of backwater.
190
Table 11 (Continued).
Location RM
Extent
of Backwater
on Study
Site Thalweg
(ft)
Mainstem
Discharge
(cfs)
Gradient
(ft/mi)
Head
Condition
~-
Sunset
Side Channel
Sunrise
Side Channel
Bi rch Creek
Trapper Creek
Side Channel
86.9 1100 56,000-66,700 9.5
87.0 N/A b 16.0
88.4 N/A b 4.9
91.6 N/A a 12.1
Breached
N/A
a
b Backwater was not present at study site.
Insufficient data available to determine occurrence and extent of backwater.
191
r
!
5.0 GLOSSARY
Backwater Area - A reach of stream with reduced or no velocity and a
rise in stage resulting from a hydraulic or physical barrier.
Backwater areas in habitats adjacent to the Susitna River usually
are due to an increase in mainstem discharge and occur at the mouth
of or within a side channel or slough.
Breaching -The overtopping of the head of a side channel or side slough
by the mainstem river.
Controlling Discharge -The mainstem discharge at Sunshine (USGS
15292780)required to breach the upstream end of the side channel
or side slough and govern the hydraulic characteristics within a
side channel or side slough.
Cross Section Profile - A survey of the vertical section of a channel
bottom taken at right angles to a survey line resulting in a
ground/streambed profile.
Di scha rge -Di scha rge is defi ned as the volume rate of flow of water
passing a specific location at a specific period in time,expressed
as cubi c feet per second (cfs).For the purpose of thi s report
"discharge ll will refer specifically to mainstem flow.
Flow -The movement of a volume of water from place to place.See
Discharge and Streamflow.
192
Gag"ing Station - A location which has been established for monitoring
stage,flow and/or discharge.
Gradient -Rate of change in vertical elevation per unit horizontal
distance.
Head -The upstream end or point of origin of a lotic water body.
Initial Breaching Discharge -The mainstem discharge at Gold Creek which
represents the initial point when mainstem water begins to enter
the head of a side channel/side slough.
Mainstem -Consists of those portions of the Susitna River that normally
convey water throughout the year.Both single and multiple channel
reaches are included in this habitat category.Groundwater and
tributary inflow appear to be inconsequential contributors to the
avera 11 characteri sti cs of mai nstem habitat.Ma instem habitat is
typically characterized by high water velocities and well armored
streambeds.Substrates generally consi st of boul der and cobble
size materials with interstitial spaces filled with a gr'out-like
mixture of small gravels and glacial sands.Suspended sediment
concentrati ons and turbidity a re hi gh duri ng summer due to the
influence of glacial melt-water.Discharges recede in early fa 11
and the mainstem clears appreciably in October.An ice cover forms
on the river in late November or December.
193
-
-
Mean Daily Discharge -The computed mean mainstem discharge per 24 hour
period for a USGS gaging station.
Mouth -The downstream confl uence of a loti c water body with another
water body.
Observed Data -Values derived through a visual estimate or evaluation.
Rating Curve - A curve representing a simple relation between two
variables to be used to determine values of the dependent variable
as a function of the independent variable.The rating curves
developed using project measurements of stage and discharge consist
of discharge rating curves and stage rating curves.The discharge
rating curves are used to determine streamflow as a function of
mainstem discharge and streamflow as a function of water surface
elevation.The stage rating curves are used to determine stage
(water surface elevation)as a function of mainstem discharge.
Side Channel -Consists of those portions of the Susitna River that
norma 11y convey water duri ng the open water season but become
appreciably dewatered during periods of low mainstem discharge.
Side channels may exist either in well defined overflow channels or
in poorly defined water courses flowing through partially submerged
gravel bars and islands along the margins of the mainstem river.
Side channel streambed elevations are typically lower than the mean
monthly water surface elevations of the mainstem Susitna River
observed during June,July,and August.Side channels are
194
characterized by shallower depths,lower velocities and smaller
streambed materials than the adjacent mainstem river.
Side Slough -Those channels located between the edge of the floodplain
and the mainstem and side channels of the Susitna River.It is
usually separated from the mainstem and/or side channels by \'Jel1
vegetated bars.An exposed alluvial berm often separates the head
of the slough from ma i nstem di scha rge or side channel flows.The
controll ing streambed/bank elevations at the upstream end of the
side sloughs are slightly less than the water surface elevations of
the mean monthly discharges of the mainstem Susitna River observed
for June,July,and August.At intermediate and low-discharge
periods,the side sloughs convey clear water from small tributaries
and/or upwelling groundwater.These clear water inflows are
essential contributors to the existence of this habitat type.The
water surface elevation of the Susitna River generally causes a
backwater to extend well up into the slough from its lO\'Jer end.
Even though this substantial backwater exists,the sloughs function
hydraul i ca lly very much 1ike small stream systems and several
'hundred feet of the slough channel often conveys water independent
of mainstem backwater effects.At high discharges the water
surface elevations of the mainstem river is sufficient to overtop
the upper end of the slough.Surface water temperatures in the
side sloughs during summer months are principally a function of air
temperature,solar radiation,and the temperature of the local
runoff.
195
-
_.
-
Staff Gage - A non-recording staff,marked in graduations of hundredths
of feet,used to monitor stage through observation.
Stage -The hei ght of the water surface above an estab 1i shed datum
plane.Stage can be converted to true water surface elevation if
the observations are converted into project datum.
Streamflow -Same as discharge but refers specifically to side channel,
slough and tributary flow whereas discharge denotes in the
mainstem.See Discharge.
Thalweg Profile - A longitudinal profile that describes the streambed
elevation of the deepest portion of mainstem,tributary,slough or
other riverine habitats.
WSEL -Abbreviation for water surface elevation.
196
--6.0 CONTRIBUTORS
PROJECT LEADER
-
Aquatic Habitat and Instream Flow
Project Leader
PRIMARY AUTHORS
SECONDARY AUTHORS
REPORT COORDINATORS
EDITORS
DATA PROCESSING
DATA COLLECTION
DRAFTING
TYPING
197
Douglas Vincent-Lang
Tim Quane
Pat Morrow
Isaac Queral
Teri Kekl ak
Tommy Withrow
Tim Quane
Douglas Vincent-Lang
Teri Kekl ak
Allen Binaham
Alice Freeman
Donna Bucholz
Pat t1orrow
Tommy ~Jithrow
Isaac Queral
Glen Freeman
Doug Sonnerholm
Chri s Kent
Sha ri e Il.1ethv;n
Ca ro 1 He p1er
Roxanne Peterson
Camill e Stephens
Skeers Word Processing
-----------------------------------
,~
7.0 ACKNOWLEDGEMENTS
The authors wish to thank Bob Aaserude and Diane Hilliard of E.W.Trihey
&Associates for providing their assistance with the study design,data
reduction,and editing associated with this report.Special thanks to
Larry Leveen of the U.S.Geological Survey for his effort in producing
numerous instantaneous di.scharges in support of the time lag analysis.
Funding for this study was provided by the State of Alaska,Alaska Power
Authority.
198
-
8.0 LITERATURE CITED
Alaska Department of Fish and Game (ADF&G).1984.Su Hydro Aquatic
Studies (May 1983 -lJune 1984)Procedures Manual.Final Draft.
Prepared for Alaska Power Authority Anchorage,Alaska.
U.S.Geological Survey (USGS).1978.Surface water records of Cook
Inlet Basin,Alaska,through September 1975.Open-file Report
78-498 (basic data).
1982.Water Resources Data for Alaska:Water Year 1981.USGS
Water Data Report AK-81-1.Anchorage,Alaska.
1983.Water Resources Data for Alaska:Water Year 1982.USGS
Water Data Report AK-82-1.Anchorage,Alaska.
1984.Water Provisional Summary of 1984 Water Resources Data
for Alaska.
199
"""'
9.0 ATTACHMENTS
.-
AT T ACH MEN T A
-
-
.-
TIME LAG ANALYSIS FOR THE LOWER SUSITNA RIVER BASIN
Stage and discharge values in the lower Susitna River can range
considerably during a 24 hour period as evidenced by inspection of the
Sunshine Station hydrograph (USGS 15292780).This is particularly true
for peaking discharge periods resulting from storm events.To develop
correlations for rating curves of stage and streamflow data between
specific side channels and the mainstem during peaking mainstem
discharge events the use of instantaneous mainstem discharge values is
necessary.
To obtain instantaneous mainstem discharge values at sites that are some
distance downstream from the reference gaging station requires an
assessment of the basin lag time.Lag time is the time required for a
flood wave to move down a drainage basin from the gaging station to the
study site.
To evaluate instantaneous site specific measurements of stage and
discharge at study sites during high flow events it is necessary to
determine the magnitude of the flood wave and the time of day the vJave
infl uenced the si te specifi c measurements.To determi ne the di scha rge
represented by the flood wave requires an assessment of the velocity (v)
of the wave;
A-I
x =distance from reference gage to site
where
v =x/t
",""
~I
t =time required for flood wave to travel from the
reference gage to the site.
To assess the velocity of several flood waves,the hydrographs for
Sunshine and Susitna Stations were analyzed (USGS 15292780 and 15294350,
respectively).Four peak events of varying magnitude that could be
clearly distinguished in both hydrographs were selected for analysis.
The objective was to determine the time it took for each flood wave to
travel the 58.1 miles between gaging stations.The following values
were obtained from the USGS (Larry Leveen,pers.comm.,1/31/85).
From these values,flood wave velocities were calculated.
.....
-
Time Velocity Sunshine
Date (hrs)(ft/sec)Q (cfs)
July 27 14.5 5.88 86,900 ~August 19-20 17.0 5.01 64,000
August 26 11.0 7.75 114,000
September 14-15 37.5 2.27 24,500
A-2
I~
A logarithmic regression relationship was developed between flood wave
velocity and discharge at Sunshine Station.This equation is as
foll O\O</S:
v =10-3 .086 0°·785,r 2 =0.996.
Attachment Table A-I provides a tabulation of the distance in miles that
a flood wave of a given magnitude will travel in a given time interval
for the lower Susitna River.Attachment Figure A-I provides a graphic
representation of the data presented in Attachment Table A-I.To
determine the instantaneous mainstem discharge occurring at a study
site,the following procedure was used:
1)the instantaneous mainstem discharge at Sunshine was
determined corresponding to the time of day for a site
specific stage observation;
--
-
2)the di stance of the study site from the Sunshi ne stat;on was
determined;
3)the instantaneous mainstem discharge and the distance were
plotted in Attachment Figure A-I to determine the lag time of
the flood wave;
A-3
~-
Attachment Table A-l.Distance in miles that a flood wave of a given magnitude will
travel in a given time.-
Lag Time Magnitude of Flood Wave (cfs)
(Hours)15,000 20,000 30,000 40,000 60,000 BO,OOO 90,000 100,000 150,000
4 4.2 5.3 7.3 9.1 12.5 15.7 17.2 lB.7 25.7
6 6.4 7.9 10.B 13.7 lB.B 23.5 25.8 28.1 38.6 ~,
B 8.5 10.6 14.5 lB.2 25.0 31.4 34.4 37.4 51.4
10 10.6 13.2 18.2 22.8 31.3 39.2 43.0 46.8 64.3
12 12.7 15.9 21.8 27.3 37.6 47.1 51.6 56.1 77 .1
14 14.9 18.5 25.4 31.9 43.8 54.9 60.3 65.5 90.0
16 17.0 21.2 29.1 36.4 50.1 62.8 6B.9 74.B 102.B ~;
18 19.1 23.8 32.7 41.0 56.4 70.6 77.5 84.2 115.7
20 21.2 26.4 36.4 45.6 62.6 78.5 86.1 93.5 128.5
24 25.5 31.7 43.6 54.7 75.1 94.2 103.3 112.2 154.2
28 29.7 37.0 50.9 63.8 87.7 109.9 120.5 130.9 179.9 """',32 34.0 42.3 58.2 72.9 100.2 125.6 137.7 149.6 205.0
36 3B.2 47.6 65.4 82.0 112.7 141.3 154.9 16B.3 231.3
40 42.5 52.9 72.7 91.1 125.2 157.0 172.2 187.0 257.1
44 46.7 58.2 80.8 100.2 137.8 172.7 189.4 205.7 282.8 -
-
-
-
A-4 -
.---+_.
---1-,
._~-,-
,--
,
-"--:--'-:-'-'-__c:-:~..:T~:-
---
---~---_.~---------------
. ......-...-;:':'_.:::~:;::-.::-:=::---_.._-~---._.__.,._~•__-+~_.-0-
100 _
90":_--
80_:~
z
o-
,....
-
-
1+_-_
10 )cx::.::J I
;j0,o00
I
5"0,000
j
100,000
--Attachment Figure A-1.Lower Susitna River Basin lag times referenced
to Sunshine Station (USGS 15292780).
A-5
4)the lag time was subtracted from the time of the stage
observation to yield the time of day the flow wave was
measured at the Sunshine station.The instantaneous mainstem
discharge at Sunshine station for this revised time is the
discharge corresponding to the site specific stage
measurement.
A-6
-
-
-
-
....
AT T ACH MEN T B
))1 ]1 )1 l-]1 })l 1 J l 1
Attachment Table B-1.Comparison of water surface elevations and streamflow,measured at
Task 14 study sites,to mean daily mainstem discharge (cfs)at
Sunshine (USGS 15292780).
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(ds)Discharge (cfs)
---------------------------------------------------
Hooligan Side Channel TR 3 840925 1710 91.28 19,600
(035.2S1 at RM 35.2)840917 1040 91.27 20,400
840725 1600 93.33 53,300 a /
840711 1200 93.36 688.5 55,100
840724 1050 93.39 696.4 55,200 /
840829 1330 93.35 55,400 a
840808 1330 93.87 64,700 a /
840808 1220 93.83 65,200 a /
840808 1106 93.83 1087.5 65,600 a/
840828 1245 94.40 71 ,900 a/
co 840825 1340 95.00 2288.0 80,300 a /
I 840825 1600 95.28 85,300 a/I-"
87,500 a /840825 1710 95.39
840826 1430 96.68 113,000 a/
I
at Discharge value is instantaneous and was determined using a time lag analysis.
OJ
I
N
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Eagles Nest Side Channel TR 2 841009 1630 90.13 15,000
(036.2S1 at RM 36.2)840928 1530 90.28 17,700
840926 1250 90.41 19,000
840926 1350 90.41 21.2 19,000
840917 1115 90.48 20,400
--------------------------------------------------------------------------------------------
J J .J I 1 I •)l J !t }J ~I ,'I
-))J -I"~-)1 I ])1 I 1 )1 l }
co
I
W
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Kroto Slough Head TR 2 840925 1225 89.74 19,600
(036.3S1 at RM 36.3)840711 1600 91.65 290.6 55,100
840724 1345 91.60 268.1 55,200
840724 1530 91.61 55,200 /
840829 1400 91.40 59,100a
840808 1520 92.44 530.0 65,900
840808 1600 92.44 65,900
840808 1655 92.47 65,900
840809 1100 92.44 68,300a /
840727 1300 94.77 85,500 /
840825 1835 94.69 1771.6 89,700a
840825 2020 94.82 93,300
840825 2110 94.90 93,300
a/Discharge value is instantaneous and was determined using a time lag analysis.
OJ
I
+:0
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Rolly Creek TR 2 841011 1530 92.36 14,200
(039.0T!at RM 39.0)840928 1605 93.31 17,700
840928 1540 93.32 10.9 17 ,700
840830 1500 93.96 40,800
840815 1800 93.87 46,000
840813 1730 94.41 48,100
840710 1510 94.71 2.9 52,500
840724 0939 94.89 55,200
840809 1001 95.70 68.300
840809 1001 95.73 68.300
840730 1600 96.34 70,500
840826 1600 96.04 104,000
J i J I I .,
"j J 1 }I J I 1
1 1 1 j }i I )j }1 I J ]
c:o
I
(Jl
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Bear Bait Side Channel TR 2 840927 1110 88.50 18,300 1
(042.9S1 at RM 42.9)840813 1330 91.95 48,800 a
840710 1215 92.21 188.9 52,500
840724 1611 92.36 242.6 55,200
840724 1645 92.39 55,200
840731 1200 93.15 64,900
840808 1811 93.08 547.3 65,900
840826 1700 96.86 110,000al
840826 1400 97.08 2512.4 113,000al
al Discharge value is instantaneous and was determined using a time lag analysis.
co
I
O'l
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Last Chance Side Channel TR 2 840813 1400 93.36 48,100'
(044.481 at RM 44.4)840725 1150 94.33 165.4 56,100
840725 1220 94.33 56,100
840809 1220 95.26 476.2 68,300
840809 1244 95.28 68,300 /
840726 1430 95.37 70,500 a
840726 1430 95.40 70,500 a /
840827 1250 96.67 86,200 a /
840827 1030 96.71 1219.6 87,900 a /
840825 1630 96.72 89,700 a /
a/Discharge value is instantaneous and was determined using a time lag analysis.
1 ,l I il J J I ~J •I J J I 1 1
)]1 J J 1 }I ,l 1 1 j I
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft )(cfs)Discharge (cfs)
---------------------------------------------------
Rustic Wilderness Side Channel TR 4 840928 1140 92.83 17,700
(059.5S1 at RM 59.5)840930 1500 92.81 17,800
841001 1230 92.85 18,700
840917 1450 92.94 20,400
840831 1400 94.83 38,000
840712 1645 95.84 607.4 54,100 I
840812 1230 95.87 54,800 a
840725 1508 95.86 642.3 56,100
840828 1650 95.91 59,900
840828 1425 95.95 59,900
840828 1510 95.96 781.6 59,900
co 840809 1615 96.29 921.2 68,300
I 840809 1700 96.30 68,300-....J 840729 1430 96.49 71,900
al Discharge value is instantaneous and was determined using a time lag analysis.
co
Ico
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Caswell Creek TR 4 (Q Site)841009 1140 93.58 27.5 15,000
(063.0T4 at RM 63.0)841001 93.43 18,700
840926 93.39 19,000
840915 93.38 22,300
840818 1500 94.89 45,400
840719 1330 95.48 51,600
840711 1530 95.85 11.9 55,100
840724 1100 95.57 55,200
840802 1430 95.80 56,700
840706 1400 96.21 60,400
840626 1420 96.47 64,800
J J ••I )J •J j :-J J I I
I 1 j
Attachment Table B-1.
J
continued
I j 1 1 -1 i -1 )j
WSEL Streamflow Mainstem
Location Date Time (ft )(cfs)Discharge (cfs)
---------------------------------------------------
Island Side Channel TR 1 (Q Site)840930 90.86 17,800
(063.2S1 at RM 63.2)840831 1300 91.90 38,000
840719 1215 93.13 51,600
840712 1530 93.33 379.0 54,roo 1
840725 1300 93.33 303.0 53,500 a
840725 2010 93.54 56,100
840704 1150 93.55 58,600
840811 1630 93.77 515.0 60,000
840801 1430 93.73 60,300
840626 1500 93.95 64,800
co 840807 1325 94.17 66,700
I
'!)
al Discharge value is instantaneous and was determined using a time lag evaluation.
c:o
I
f-"
a
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(ds)Discharge (cfs)
---------------------------------------------------
Island Side Channel TR 1A 840930 90.93 17 ,800
(063.2S7 at RM 63.2)840919 1200 91.37 28,400
840901 1330 91.69 35,000
840831 91.93 38,000
840725 1745 93.46 56,100
840725 1940 93.56 56,100
840801 93.75 60,300
840807 1325 94.16 66,700
,J •~I •1 I .~•j J ,t •
J J --1 J 1 J 1 1 -1 1 .]~I }
co
I
I-'
I-'
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cis)
---------------------------------------------------
Island Side Channel TR 2 840930 90.88 17,800
(063.2S2 at RM 63.2)840919 1210 91.33 28,400
840901 91.68 35,000
840831 91.89 38,000
840725 1710 93.41 56,100
840725 1935 93.52 56,100
840801 93.74 60,300
840807 1325 94.16 66,700
o:r
I
f-'
N
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time .(ft)(cfs)Discharge (cfs)
---------------------------------------------------
Island Side Channel TR 3 840930 91.23 17,800
(063.2S3 at RM 63.2)840901 91.70 35,000
840831 91.90 38,000
840725 1550 93.44 56,100
840725 1500 93.48 56,100
840725 1900 93.55 56,100
840801 93.79 60,300
840807 1325 94.24 66,700
~1 ]J I I 1 I •J J J I J 1
t )'--]-j J l r -j 1
l;O
I......
W
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Island Side Channel TR 4 840930 91.56 17,800
(063.2S4 at RM 63.2)840901 1500 91.71 35,000
840831 91.90 38,000
840725 1850 93.62 56,100
840801 93.89 60,300
840807 1325 94.34 66,700
--------------------------------------------------------------------------------------------
Ctl
I......
+>-
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(ds)Discharge (cfs)
---------------------------------------------------
Island Side Channel TR 4A 840930 91.56 17,800
(063.2S8 at RM 63.2)840901 91.77 35,000
840831 91.94 38,000
840725 1400 93.52 56,100
840725 1830 93.66 56,100
840801 93.93 60,300
840807 1325 94.31 66,700
,,i ~.I I 1 -~~I ~J j ,I .~t ,I'l'
1 'j I ]I ]}--1 l 1 J J,?I I ~'1 1
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Island Side Channel TR 5 840930 91.57 17 ,800
(063.2S5 at RM 63.2)840927 91.57 18,300
840915 91.59 22,300
840901 91.73 35,000
840831 91.94 38,000
840725 1300 93.56 56,100
840801 93.98 60,300
840807 1325 94.44 66,700
--------------------------------------------------------------------------------------------
o;:l
I........
(Jl
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Island Side Channel TR 6 (Q Site)840930 91.54 17,800
(063.2S6 at RM 63.2)840927 1400 91.56 18,300
840915 91.62 22,300
840901 1300 91.75 35,000
840831 1230 91.95 38,000
840719 93.36 51,600
840712 1130 93.67 394.9 54,100 /
840725 1220 93.55 337.7 53,600 a
840725 1620 93.61 359.5 54 200 a/,
840725 1915 93.70 56,100
840704 93.84 58,600
co 840811 1150 94.08 543.0 60,000
I 840811 1425 94.08 60,000f-'
(J)840801 94.00 60,300
840626 1520 94.30 64,800
840626 1520 94.31 64,800
840807 94.40 66,700
a/Discharge value is instantaneous and was determined using a time lag evaluation.
,1 ,I i I t I I I J l i ~.J 1 1 .~...J
i -]I l 1 ---1 1 ~])]-I 1
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Mainstem W\B S.Chan.TR1 (Q Site)841010 1430 92.64 .5 14,700
(074.4S1 at RM 74.4)840925 1005 92.85 5.7 19,600
840915 1110 93.90 73.1 22,300
840914 94.12 24,000
840920 1450 94.62 309.9 30,500
840902 94.94 32,000
840902 1231 94.97 449.6 32,000
840817 95.49 42,500
840815 95.56 46,000
840712 1050 95.96 1260.0 54,100
840711 1130 96.01 55,100
840711 1130 96.08 55,100
co 840724 1600 96.02 1267.0 55,200I
f--'840723 1950 95.98 56,100........
840721 96.02 57,700
840721 96.03 57,700
840801 96.22 60,300
840801 96.24 60,300
840810 1745 96.49 66,400
840810 1445 96.54 1910.0 66,400
840807 1205 96.49 66,700
840827 1240 97.14 79,700
840827 1010 97.19 2814.1 79,700
--------------------------------------------------------------------------------------------
c:o
I
l--'co
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Mainstem West Bank Side Chan.TR 2 841010 92.63 14,700
(074.4S2 at RM 74.4)840915 93.74 22,300
840914 94.13 24,000
840920 1535 94.64 30,500
840902 94.98 32,000
840902 1503 95.00 32,000
840817 95.60 42,500
840815 95.64 46,000
8407t"1 1215 96.06 55,100
840711 1215 96.09 55,100
840723 1950 96.02 56,100
840723 1950 96.07 56,100
840721 96.09 57,700
840721 96.14 57,700
840801 96.31 60,300
840801 96.32 60,300
840810 1805 96.54 66,400
840810 1805 96.62 66,400
840807 1205 96.51 66,700
-J l l B I I t •j J ~~..I I J ~I ~J
OJ
I
f--'
1.0
J }l 1 1 "i j l 1 1 -~.J j s 11 l J.I
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Mainstem West Bank Side Chan.TR 2A 840903 1230 94.90 29,000
(074.4S5 at RM 74.4)840920 94.67 30,500
840902 94.99 32,000
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Mainstem West Bank Side Chan.TR 3 841010 93.03 14,700
(074.4S3 at RM 74.4)840915 93.80 22,300
840914 94.18 24,000
840903 94.97 29,000
840920 1323 94.70 30,500
840902 1604 95.04 32,000
840902 95.08 32,000
840815 95.92 46,000
840711 1300 96.39 55,100
840723 1950 96.36 56,100
840721 96.44 57,700
c:o 840801 96.67 60,300,840810 1805 96.81 66,400N
0 840810 1805 96.94 66,400
840807 1205 96.81 66,700
.~I •I ,1 J ,I 1 •~J J J I 1 I
i -1 -J J )J l 1 1 ]
c:o
I
N
I--'
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Mainstem West Bank Side Chan.TR 3A 841010 93.05 14,700
(074.4S6 at RM 74.4)841001 1120 93.37 18,700
840925 1210 93.51 19,600
840915 94.04 22,300
840914 94.44 24,000
840903 1100 95.21 29,000
840920 1248 94.93 30,500
840902 1628 95.29 32,000
840902 95.32 32,000
Attachment Table B-1.
Location
continued
Date Time
WSEL
(ft )
Streamflow
(cfs)
Mainstem
Discharge (cfs)
OJ
I
N
N
Mainstem West Bank Side Chan.TR 3B
(074.4S7 at RM 74.4)
840903 95.06 29,000
~I •)I ~I I I j I •~I I I )
]j 1 I )]]J )1 I
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Mainstem West Bank Side Chan.TR 4 841010 1430 94.63 14,700
(074.4S4 at RM 74.4)840914 1145 95.83 24,000
840903 96.39 29,000
840920 1239 96.16 30,500
840902 1845 96.49 32,000
840902 1715 96.54 32,000
840817 97.22 42,500
840815 97.30 46,000
840711 '1400 97.50 55,100
840711 1400 97.70 55,100
840723 1950 97.67 56,100
OJ 840721 1215 97.62 57,700
I 840801 1601 97.90 60,300Nw840810181097.86 66,400
840810 1810 98.19 66,400
840807 1205 97.97 66,700
ro
I
N
-10>
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs )Discharge (cfs)
---------------------------------------------------
Goose 2 Side Channel TR 2 (Q Site)840902 1933 214.66 32,000
(074.8S2 at RM 74.8)840830 1200,215.07 40,800
840815 1105 214.96 46,000
840710 1720 215.38 108.0 52,500
840720 1115 215.27 52,600
840723 1530 215.42 114.0 56,100
840802 1140 215.51 56,700
840705 1030 215.63 59,800
840828 1155 215.82 213 .8 59,900
840626 1200 215.87 64,800
840810 1650 215.78 209.0 66,400
J J ,m ]J I ),.J J i ,_J 1 ]J J ~I
1 j J 1 1 ))--)1 1 )1 ]
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Circular Side Chan.TR 1 (Q Site)840920 0855 87.87 .5 30,500
(075.3S1 at RM 75.3)840830 1700 89.10 40,800
840817 1700 89.25 42,500
840817 1740 89.28 43.1 42,500
840803 90.23 54,700
840803 ,90.24 54,700
840724 1855 90.26 55,200
840724 1855 90.26 55,200
840724 1140 90.29 204.2 55,200
840724 1225 90.3D 191.0 55,200
840724 1330 90.30 55,200
840723 90.31 56,100
0::1 840811 1250 90.81 281.4 60,000
I 840706 90.70 60,400N
t1l 840706 90.70 60,400
840706 90.72 60,400
840824 1235 90.78 64,800
840824 1235 90.78 64,800
840626 1045 90.99 64,800
840626 1045 91.00 64,800
840807 1245 91.24 66,700
840827 1800 91.75 79,700
840827 1615 91.82 745.5 79,700
Attachment Table B-1.continued
co
I
N
O"'l
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Circular Side Channel TR 2 840830 89.27 40.800
(075.3S2 at RM 75.3)840817 89.27 42.500
840817 1830 89.30 42.500
840803 90.21 54.700
840724 1905 90.26 55.200
840811 1225 90.77 60.000
840824 1230 90.80 64.800
840807 1245 91.19 66.700
B j i J 11 I !;.1 I I J J I )J J I~
1 ..~j 1 J J 1 1 )J 1 j ]J j
t:J::l
I
N
-......I
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(efs)Discharge (ets)
---------------------------------------------------
Circular Side Channel TR 2A 841010 88.06 14,700
(075.3S6 at RM 75.3)840903 88.69 29,000
840920 0930 88.67 30,500
840902 88.70 32,000
840830 89.33'40,800
840817 1940 89.41 42,500
840803 90.26 54,700
840724 1905 90.28 55,200
840724 1600 90.31 55,200
840824 1230 90.81 64,800
840807 1245 9l.18 66,700
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (ds)
---------------------------------------------------
Circular Side Channel TR 3 840914 1330 89.45 24,000
(075.3S3 at RM 75.3)840903 89.55 29,000
840920 0946 89.50 30,500
840902 1904 89.56 32,000
840830 1445 90.06 40,800
840817 1545 90.17 42,500
840817 1923 90.20 42,500
840710 1455 90.51 52,500
840803 1105 90.62 54,700
840724 1200 90.67 55,200
840724 1910 90.60 55,200
OJ 840723 1645 90.64 56,100
I 840811 1225 91.01 60,000Nco840706110090.92 60,400
840824 1225 91.03 64,800
840626 1040 91.15 64,800
840626 1040 91.21 64,800
840807 1245 91.32 66,700
J J )j g t I }~.1 1 I I 1 1 I I
))-1 ]1 1 j ]J J ]J j ]I -1 j
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Circular Side Channel TR 4 (Q Site)840928 1610 89.54 17 ,700
(075.384 at RM 75.3)840914 89.72 24,000
840903 89.85 29,000
840920 1010 89.77 .5 30,500
840902 89.84 32,000
840830 90.40 40,800
840817 90.57 42,500
840817 1740 90.60 49.6 42,500
840710 1415 91.13 150.0 52,500
840803 91.24 54,700
840724 1330 91.25 200.2 55,200
OJ 840724 1910 91.26 55,200
I 840724 1015 91.29 192.5 55,200N
<.0 840724 1105 91.30 55,200
840723 91.26 56,100
840811 1220 91.58 60,000
840811 1105 91.59 295.0 60,000
840824 1220 91.54 64,800
840824 1220 91.56 64,800
840807 1245 91.83 66,700
840827 1555 92.43 79,700
840827 1425 92.49 860.0 79,700
o::J
I
Wo
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (ets)
---------------------------------------------------
Circular Side Channel TR 5 841010 89.04 14,700
(075.3S5 at RM 75.3)841009 89.10 15,000
840928 89.55 17,700
840914 89.73 24,000
840903 89.84 29,000
840920 1020 89.76 30,500
840724 1500 91.32 55,200
840724 1915 91.32 55,200
,)I i J J J -!I •I J .1 J ,I J I J
»1 1 J 1 1 1 1 1 1 1 ]1 1 ]
Attachment Table B-1.continued
co
I
W
I--'
WSEL Streamflow Mainstem
Location Date Time (ft)(ds)Discharge (cfs)
---------------------------------------------------
Circular Side Channel Head 840710 1600 91.81 52,500
(075.3H3 at RM 75.3)840723 1520 92.00 56,100
840624 1515 92.99 70,100
co
I
W
N
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (it>(cfs)Discharge (cf s)
---------------------------------------------------
Sauna Side Channel TR 1 841009 88.75 15,000
(079.881 at RM 79.8)840817 1030 89.15 42,500
840823 1550 90.63 54,600
840723 90.70 54.0 56,100
840723 1300 90.72 56,100
840802 90.73 56,700
J _I J J J 1 J ,I J I I J ~,J J 1 J I
]1 ---1 j ]1 1 1 ]1 ~--1 j~]1 1 ]
co
I
W
W
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft )(cfs)Discharge (cfs)
---------------------------------------------------
Sauna Side Channel TR 2 (Q Site)841009 89.00 15,000
(079.8S2 at RM 79.8)840710 1040 90.24 37.8 52,500
840823 1500 90.61 54,600
840723 1200 90.71 52.0 56,100
840723 1215 90.73 50.0 56,100
840723 1220 90.73 56,100
840802 1645 90.75 56,700
840721 1545 90.91 57,700
840828 1055 ~1.09 59,900
840828 0925 91.13 -57.6 59,900
840706 1515 91.18 60,400
840810 1350 91.83 66,400
840810 1255 91.85 67.5 66,400
840807 _91.26 66,700
840625 1600 91.82 67,100
840625 1600 91.86 67,100
00
I
W.p
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(ds)Discharge (ds)
--------------------------------------------------
Sauna Side Channel TR 3 841009 88.90 15 t OOO
(079.8S3 at RM 79.8)840823 1510 90.64 54 t 600
840723 1540 90.66 56 t 100
840723 90.72 55.0 56 t 100
840723 1414 90.75 56 t 100
840802 90.75 56 t 700
J J ),I c~I J I J I J J J ,I I I
)j )1 -}}I~--1 1 1 j 1 J 1 1 -j
co
I
W
U1
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Sauna Side Channel TR 4 841009 89.02 15,000
(079.8S4 at RM 79.8)840928 1045 89.02 17 ,700
840914 1700 89.02 24,000
840830 89.39 40,800
840817 89.29 42,500
840823 1510 90.65 54,600
840723 90.69 45.0 56,100
840723 1625 90.69 56,100
840802 1510 90.79 56,700
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfa)Discharge (ets)
---------------------------------------------------
Sucker Side Channel TR 2 (Q Site)840913 261.50 22,700
(084.5S2 at RM 84.5)840914 1110 261.52 24,000
840902 261.83 32,000
840901 1700 261.97 35,000
840831 1845 262.35 38,000
840816 262.94 44,000
840816 262.95 44,000
840829 1755 263.16 47,600
840710 1045 263.52 75.2 52,500
840823 1235 263.85 54,600
840709 1052 263.90 55,400
840805 264.16 57,700co840805264.18 57,700Iw840722263.95 57,800m
840722 263.97 57,800
840810 1320 264.84 66,400
840810 1020 264.89 181.2 66,400
840625 1445 264.81 67,100
840726 1310 265.58 76,200
840726 1310 265.64 263.6 76,200
840726 1450 265.70 76,200
840826 1805 267.01 104,000
840826 1645 267.08 619.0 104,000
J ]I J J 1 I J ).1 !j cl J I J -I J cD
)))1 )]J )1 1 ))]-)-j ]j
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cis)Discharge (cis)
---------------------------------------------------
Sucker Side Channel TR 5 840913 1715 262.77 22 t 700
(084.585 at RM 84.5)840914 1210 262.78 24,000
840902 1136 262.91 32,000
840816 263.38 44 t OOO
840710 1525 263.82 76.7 52,500
840823 1150 264.00 54 t 600
840709 264.09 55,400
840805 264.32 57 t 700
840722 264.11 57 t800
840810 0900 264.97 177.0 66 t 400
840625 1500 264.88 67 t100
OJ 840627 1100 264.78 172.6 67 t 200
I 840726 1035 265.42 76,200w......,840726 1025 265.44 231.0 76 t 200
840726 1115 265.47 76,200
840726 1245 265.58 76 t 200
840826 1630 267.21 104,000
840826 1350 267.34 682.9 104,000
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (ds)
---------------------------------------------------
Beaver Dam Slough TR 1 (Q Site)840929 1420 92.84 17 ,400
(086.381 at RM 86.3)840925 1645 92.85 .7 19,600
840917 1125 92.84 20,400
840916 1305 92.83 .7 21,000
840914 1540 92.85 24,000
840901 1315 93.14 35,000
840831 93.22 38,000
840829 1210 93.62 47,600
840804 94.08 53,900
840804 1220 94.08 53,900
840823 1055 94.00 54,600
OJ 840724 93.84 55,200
I 840724 93.85 55,200wco840709162093.99 55,400
840708 1230 94.14 57,100
840819 94.24 57,200
840819 94.24 57,200
840808 1930 95.20 65,900
840625 95.28 67,100
840627 1440 95.37 0.0 67,200
840726 1900 96.48 76,200
~J ,~B J J ,J J I J ~}),I ,I 1 I
1 1 1 1 -)i »J 1 -]}1 1 1
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Beaver Dam ~ide Chan.TR 4 (Q Site)840929 92.68 17,400
(086.3S4 at RM 86.3)840925 1700 92.69 .5 19,600
840917 92.70 20,400
840916 1200 92.69 .6 21,000
840901 92.89 35,000
840831 92.94 38,000
840829 93.55 47,600
840804 1500 94.00 53,900
840823 1015 93.89 54,600
840823 1030 93.93 54,600
840724 93.79 55,200
co 840709 93.98 55,400,840709 1310 94.00 20.5 55,400w
1.0 840708 94.06 57,100
840819 1630 94.60 57,200
840808 1920 95.12 65,900
840808 1935 95.13 65,900
840808 1715 95.17 122.0 65,900
840625 95.18 67,100
840625 1730 95.19 67,100
840625 1315 95.21 67,100
840627 1320 95.20 67,200
840627 1320 95.24 122.2 67,200
840726 1540 96.16 76,200
840726 1715 96.23 303.8 76,200
840726 1830 96.41 76,200
840826 2000 97.29 104,000
840826 1840 97.35 644.0 104,000
--------------------------------------------------------------------------------------------
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Dis charge (cfs)
---------------------------------------------------
Beaver Dam Head 840823 0950 95.38 54,600
I .(086.3H4 at RM 86.3)840709 1115 95.52 55,400
840808 1700 96.52 65,900
co
I
.j::o
o
I I J J I J !J j ..~J ~,J )•1 1
1 )}}}))]1 ~ll }i 1 1
co
I
-Po
f-'
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft}(cfs)Discharge (cfs)
---------------------------------------------------
Sunset Side Channel TR 0 840929 92.70 17,400
(086.980 at RM 86.9)840822 1600 95.54 54,300
840803 1535 95.60 54,700
840723 1230 95.58 56,100
840722 1225 95.09 57,800
840722 1650 95.62 57,800
840808 1655 96.67 65,900
840807 1450 96.68 66,700
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft )(cfs)Discharge (cfs)
---------------------------------------------------
Sunset Side Channel TR 1 (Q Site)840929 1440 93.27 1.0 17.400
(086.9S1 at RM 86.9)840930 93.27 17.800
840916 93.29 21.000
840912 1305 93.29 1.4 22.700
840913 1440 93.30 22.700
840919 0915 93.29 28.400
840817 94.34 127.0 42.500
840822 1600 95.53 54.300
840803 1540 95.58 54.700
840709 1705 95.59 533.0 55.400
840709 1200 95.69 55.400co840723094095.58 446.0 56,100I
4>0 840723 1040 95.58 56,100N
840721 1205 95.45 57,700
840722 12io 95.67 496.0 57,800
840808 1625 96.63 65.900
840808 1240 96.67 944.7 65,900
840807 1450 96.69 66,700
840825 1500 99.42 3895.0 93.300
840826 0910 99.88 104,000
J I ~J )t J ,
••J .J J ,I I I J J J .1
1 ]I l ,~))J 1 I
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Sunset Side Channel TR 2 840929 1140 93.81 17,400
(086.9S2 at RM 86.9)840930 93.79 17 ,800
840916 93.81 21,000
840912 1510 93.81 22,700
840914 1500 93.81 24,000
840919 0925 93.80 28,400
840822 1510 95.71 54,300
840803 1555 95.68 54,700
840709 1300 95.94 55,400
840723 1415 95.64 56,100
ro 840722 1450 95.76 57,800
I 840722 1235 95.78 57,800-Pow
Attachment Table B-1.continued
~-------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Sunset Side Channel TR 3 841005 93.74 16,500
(086.983 at RM 86.9)840930 93.69 17 ,800
840916 93.87 21,000
840912 1510 93.78 22,700
840914 1525 93.87 24,000
840919 0939 93.87 28,400
840817 1530 94.93 42,500
840816 95.02 44,000
840822 1440 95.86 54,300
840803 1450 95.95 54,700
840709 1415 96.01 55,400
OJ 840723 1210 95.85 56,100
I 840722 1950 95.86 57,800+:>+:>840722 1315 95.94 57,800
840808 1655 96.86 65,900
840807 1450 96.89 66,700
)J ,t l :,!I )1 J J 1 -J J 1 J 1 J
)....]})1 )}1 1 1 )j i
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Sunset Side Channel TR 4 840930 94.11 17 ,800
(086.984 at RM 86.9)840916 94.11 21,000
840912 1505 94.29 22,700
840914 1615 94.31 24,000
840919 0948 94.31 28,400
840817 1530 95.01 42,500
840816 95.10 44,000
840822 95.93 54,300
840822 1440 95.93 54,300
840803 1502 95.92 54,700
840709 1500 96.08 55,400
co 840723 1140 95.95 56,100
I 840722 1820 95.96 57,800.p,-
m 840722 1455 95.98 57,800
840808 1650 96.89 65,900
840807 1450 96.96 66,700
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cis)Discharge (cis)
---------------------------------------------------
Sunset Side Channel TR 5 841005 94.75 16 t 500
(086.9S5 at RM 86.9)840929 1140 94.76 17 t400
840930 1444 94.75 17 t 800
840916 1830 94.76 21 t OOO
840912 1500 94.78 22 t 700
840919 1000 94.76 28 t 400
840817 1430 95.99 42 t 500
840816 1345 96.06 44 t OOO
840822 1435 96.66 54 t 300
840803 1545 96.72 54 t 700
840709 1600 96.79 55,400
OJ 840723 1115 96.65 56 t 100I
.p,840722 1520 96.68 57 t800O'l
840722 1930 96.68 57 t800
840808 1650 97.31 65 t 900
840807 1450 97.36 66 t 700
I .1 !I )•J 1 l 1 J I I 1 J •J .~I
_J I I ))1 }J ]l
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Sunset Side Channel TR 6 841005 94.74 16,500
(086.9S6 at RM 86.9)840929 1140 94.75 17 ,400
840930 94.75 17 ,800
840916 94.76 21,000
840919 1030 94.76 28,400
840902 1520 94.88 32,000
840817 1330 95.97 42,500
840816 96.05 44,000
840822 1435 96.62 54,300
840803 1545 96.69 54,700
840722 1830 96.64 57,800
O:J 840722 1605 96.65 57,800
I 840808 1650 97.21 65,900-P>
-....J 840807 1450 97.29 66,700
OJ
I
~co
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Sunrise Side Channel TR 4 (Q Site)840818 1315 94.96 45,400
(087.0S4 at RM 87.0)840829 1600 95.22 47,600
840822 1425 95.47 54,300
840709 1005 95.66 55,400
840708 1700 95.68 202.8 57,100
840708 1115 95.76 57,100
840805 95.76 57,700
840805 95.80 57,700
840722 95.52 57,800
840722 1700 95.53 150.8 57,800
840722 95.56 57,800
840807 1615 96.32 66,700
840807 1420 96.38 472.0 66,700
840625 1145 96.54 67,100
840826 1250 99.05 104.000
840826 1000 99.21 3220.0 104.000
__J J J ~)•J )I 5 I ~)J J J 1 ,-I
-:]j j }]i )1 J )J
OJ
I
.J::>
1.0
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Birch Creek Slough TR 2 840928 283.16 17 ,700
(088.4S2 at RM 88.4)840927 1635 283.20 18,300
840916 283.16 21,000
840720 1330 283.10 52,600
840822 1350 283.28 54,300
840803 1300 283.19 54,700
840708 1710 283.19 57,100
840722 1515 283.19 57,800
840707 1400 283.30 58,800
840828 1705 283.89 59,900
840820 1430 283.31 63,300
840808 0900 283.31 65,900
co
I
(Jl
o
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Birch Creek TR 6 (Q Site)840928 283.60 17,700
(088.481 at RM 88.4)840927 1150 283.62 34.0 18,300
840927 1610 283.62 18,300
840916 283.61 21,000
840720 1330 283.50 52,600
840822 1355 283.67 54,300
840803 1300 283.58 54,700
840708 1620 283.52 31.7 57,100
840722 1350 283.56 37.5 57,800
840707 1400 283.57 58,800
840828 1600 284.25 120.4 59,900
840820 1430 283.60 63,300
840808 0905 283.58 35 ~7 65,900
840625 1650 283.91 67,100
840623 1300 284.28 73 ,500
I J ~I ~J J I J J I J I •J }J a
]1 )J ]}1 J }}1
o::l
I
U"l
I--'
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft )(cfs)Discharge (cfs)
---------------------------------------------------
Birch Slough Head 840713 1105 310.19 52,400
(088.4M7 at RM 88.4)840812 1100 310.29 52,900
840822 1300 310.19 54,300
840722 1225 310.37 57,800
840807 1315 311.04 66,700
840622 1440 311.52 72,000
Attachment ~~ble B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Locatio.l.Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Trapper Creek sIc TR 1 841006 91.92 15,700
(091.6S2 at RM 91.6)840930 91.93 17,800
840924 91.94 20,400
840917 91.95 20,400
840918 1710 91.95 20,900
840913 1000 91.97 22,700
840816 1735 92.34 44,000
840822 1210 92.76 54,300
840803 1600 92.93 54,700
840819 1110 92.90 57,200
840721 1650 93.11 57,700
co 840721 1510 93.15 57,700
I 840722 1135 93.06 57,800(Jl
N 840807 93.75 66,700
840807 1255 93.76 66,700
J ,1 J ,J 1 J 1 J !.1 1 I J J
']-]J J ]..~-I ]1 l
Attachment Table B-1.continued
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Trapper Creek sic TR 2 841006 91.90 15.700
(091.683 at RM 91.6)840930 91.92 17 .800
840917 91.93 20.400
840924 91.93 20.400
840918 1635 91.95 20.900
840913 1000 91.95 22.700
840816 1715 92.00 44.000
840822 1210 92.51 54.300
840803 1600 92.69 54.700
840819 92.69 57.200
840721 1445 92.96 57.700
840721 1710 93.00 57.700
0;:1 840722 1135 92.89 57.800I
U1 840807 93.66 66.700w
840807 1255 93.68 66.700
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft )(cfs)Discharge (cfs)
---------------------------------------------------
Trapper Creek sIc TR 3 841009 92.12 15,000
(091.6S4 at RM 91.6)841006 92 .14 15,700
840930 92.14 17 ,800
840924 92.17 20,400
840917 92 .19 20,400
840918 1600 92.18 20,900
840913 1000 92.16 22,700
840911 1510 92.14 23,500
840816 1625 92 .15 44,000
840822 1205 92.82 54,300
840803 1600 93.02 54,700
D:l 840819 93.04 57,200
I 840721 1220 93.22 57,700CJl
+=0 840721 1530 93.32 57,700
840722 1135 93.26 57,800
840807 94.06 66,700
840807 1255 94.08 66,700
]1 J )]J J I J !J t I ,I D )
--J -~~J-=]1-·1 .-_1 j J 1
Attachment Table B-1.continued
--------------------------------------------------------------------------------------------
WSEL Streamflow Mainstem
Location Date Time (ft)(cfs)Discharge (cfs)
---------------------------------------------------
Trapper Creek sIc TR 4 (Q Site)841009 92.50 15,000
(091.6S1 at RM 91.6)841006 92.51 15,700
840930 92.47 17 ,800
840917 92.53 20,400
840924 92.55 20,400
840918 1625 92.60 15.9 20,900
840913 1000 92.56 16.4 22,700
840911 1150 92.56 17 .8 23,500
840911 1400 92.58 23,500
840816 1445 92.70 31.4 44,000
840822 0950 93.27 54,300
O:::J 840803 93.18 54,700
I 840803 1500 93.42 54,700U1
U1 840708 1130 93.78 459.0 57,100
840819 93.23 57,200
840721 1310 93.63 389.0 57 ,700
840721 1530 94.08 57 ,700
840722 0935 93.61 372.0 57,800
840722 1020 93.62 57,800
840707 1530 93.89 58,800
840707 1600 93.89 58,800
840807 94.18 66,700
840807 1115 94.21 867.8 66,700
840624 1120 94.41 70,100
840624 1500 94.75 70,100
840825 1000 96.28 3158.8 93.300
840825 1230 96.42 93,300
-
AT T AC H MEN T C
J 1 -j j j 1 •1 if -\\1 1
HOOLIGAN SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:840925
WATER SURFACE ON SURVEY DATE:-----
ESTIMATED SITE FLOW:<1.0 ef.
MAINSTEM DISCHARGE (SUNSHINE I:19,600 era
THALWEG GRADIENT:8.9 feel/mile
20+00
..J
TRANSECT a
la+oo
TRANSECT 4
1458 flit
101"00
TRANSECT STRANSECT2
_~------------------------------------------------------------------------~
8+00
14
-;(,:!12
I -
I--'Za
I-
~
I&J
..J
I&J
I&J
>
~
<l
J
I&J
II:
STREAMBED STATION (feet I
Attachment Figure C-1.Thalweg profile of the study site at Hooligan
Side Channel.
EAGLE'S NEST SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:840926
WATER SURFACE ON SURVEY DATE:
MEASURED SITE fLOW:21.2 ell
MAINSTEM DISCHARGE (SUNSHINE):19,000 cia
THALWEG GRADIENT:8.9 feel/mile
o 000
'----->
F..t
(A.,plOI..Seal.)
1 ::::::====:==;=:------
::i ~
Attachment Fi gure C-2.
1+00
STREAMBED STATION (het I
Thalweg profile of the study site at Eagle's
Nest Side Channel.
10+00
•J )..,.~.J I J J ):f ,I I J \I~
-I 1 1 )-J --I ]1 l j 1 }
KROTO SLOUGH HEAO
/KROTO SLOUGH HEAD
THALWEG PROFILE
SURVEY DATE:B40925
WATER SURFACE ON SURVEY DATE:
MEASURED SITE FLOW:0.0 ch
MAINSTEM DISCHARGE (SUNSHINE):19,600 ch
THALWEG GRADIENT:7.0 f',l/mil,
TAANS[CT t TPlANI[CT 2 ntANSf:Cf S T".NS[CT..TRANSECT D
I"174 h.1
0+00
STREAMBED STATION ('nil
--I
10+00
Attachment Figure c-3.Thalweg profile of the study site at Kroto Slough Head.
ROLLY CREEK
\
ROLLY CREEK
THALWEG PROFILE
SURVEY DATE:8409~B
WATER SURFACE ON SURVEY DATE:---
MEASURED SITE FLOW:10.9 ch
MAIN STEM DISCHARGE (SUNSHINE I:17,700 ch
THALWEG GRADIENT:5.5 ,..tlmil.
TRANSECT II
TRANSECT lit
Htl,..:UCT 4
-
TlUUIlS£C,I
l ~IS!!"",-I
.,.i .,iii iii ""i ,,,'"iii ,i ,iii iii'iii •I,I ,
OHIO !HOO 'Of 00 1'''00
j 9'"I
~---------~.----._.---_.---r---
=........I
51,0f!
TltANner a TRANSECT .,
zo
i
"'..J
"'"':>
5
"'II:
n
I
..J::.
STREAMBED STATION 11..11
Attachment Figure C-4.Thalweg profile of the study site at Rolly
Creek.
,I I .J t !1 ~i J )}j I ]_1 ,J
1 1 1 !I J ])]i J 1 I
BEAR BAIT SIDE CHANNEL
~
o 200
L--...J
Foot
(Approl,SCQI.)
7/
SIIS/TNtJA...
7~R .
BEAR BAIT SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE,840921
WATER SURFACE ON SURVEY DATE:-----
MEASURED SITE FLOW:0.0 ch
MAINSTEM DISCHARGE (SUNSHINE I:18,300 cfs
THALWEG GRADIENT,1.9 feet/mile
93
91
n ;I
(Jl .=
~
z 89
Q
~
iii 81
...J
iii
iii
>8~
i=«
...J
iii
83..10:TRANSECT I TRANSECT Z TRANSECT 3 TRANSECT 4 TRANSECT ~
~+OO
81 I 1...--==----r i j--'-0+00 'I i I ~Z~FOO':::::;=::===----------Iii I ' I iii I i ..IiiiIII I Iii i Iii I i I i I
STREAMBED STATION (feet I
Attachment Figure C-5.Thalweg profile of the study site at Bear Bait
Side Channel.
¥
o 2'0~Fu.
(l.pprOl.Seal••
•TRANSECT 6 NOt INCLUDED
IN THALWfG SURVEY
LAST CHANCE SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:840927
WATER SURFACE ON SURVEY DATE:
MEASURED SITE FLOW:0.0 ch
MAINSTEM DISCHARGE (SUNSHINE I:18,300 cis
THALWEG GRADIENT:10.1 feet/mil.
TRANSECT 4TRANSECT3
I
I
I
I
I
I
TAANSECT'I
TRANSEcT 6
993 r...(Apprallmal.location)
"I
TRANSECT 2'
~HOO 10+00
STREAMBED STATION I fe.t 1
Attachment Fi gure C-6.Thalweg profile of the study site at Last
Chance Side Channel.
J I •.1 I J •I j ~1 J .~.~J 1 I I
1 ),1 j J
/
SUSaNAIER
"
o'~oo
'Fur'
(Appro.,5ealt)
f RUSTIC WILDERNESS SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:840928
WATER SURFACE ON SURVEY DATE:_
MEASURED SITE FLOW:0.0 cta
MAIN STEM DISCHARGE (SUNSHINE):17,700 clI
THALWEG GRADIENT:8.7 feel/mile
20+00
TRANSECT 4 TRANSECT ~
.j
I~+OO
TRANSECT 5
,-------------...,.",.-~~-~,
~d-;:'-~
TRANSECT 0
10+00
TRANSECT I 1I4D rutI..
~+oo
••
n
;.4I
-...J :.
'Z 900
l-
e(
>
UJ 90..J
UJ
UJ
>se
l-
e(
..J
UJ
ll::e.
e4 •
0+00
STREAM8ED STATION (feet)
Attachment Figure C-7.Thalweg profile of the study site at Rustic Wilderness
Side Channel.
\
o 250
L--..J
F••f
(Appro •.Seal••
CASWELL CREEK
THALWEG PROFILE
SURVEY DATE:841009
WATER SURFACE ON SURVEY DATE:-----
MEASURED SITE FLOW:27.5 ~fs
MAIN STEM DISCHARGE (SUNSHINE):14,900 ~fs
THALWEG GRADIENT:10.8 feel/mile
z
0
i=90~;>
W
...J
W
W 88
;>
i=
<:l
...J
W 86
a:
84
0+00
!Ie
n
I
co
94--;;
~92
-------------------------------------.--------------...-------------------------------------------------------------
TRAN.ECT I TRANSECT 2 ITRANSECT 4 I TRANSECT 8 TRANSECT 7
TRANSECT 3 TRANSECT 5
I'"118 hl!ll ..I
i i i i I ,I ,i ,i i I ,
5+00 10+00 '5+00
STREAMBED STATION (reel I
Attachment Figure C-8.Thalweg profile of the study site at Caswell Creek.
!.1 I J I ~,]J 1 1 ]J )!1 I I
1 1 1 1 ]1 ]1 1 1 1 I
o 000
L-----.J
fut
IA~~~~_-lJ
ISLAND SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:840!i30
WATER SURfACE ON SURVEY DATE:---
ESTIMATED SiTE fLOW,<1.0 ell
MAINSTEM DISCHARGE (SUNSHINE I:11,800 ell
THALWEG GRADIENT:1~.6 Iool/milo
I
T"""UCT •_I
,..:::::---~~---
TII""'If~I '"""anT I".,"AIII"CT I
in
I
I.D
STRE",IIBED STATION (I..,)
Attachment Figure C-9.Thalweg profile of the study site at Island
Side Channel.
MAIN5T[M WEST BANI<SIDE CHANNEL
yMJ
e>_S~ql.1
/MAINSTEM WEST BANK SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE,841010
WATER SURfACE ON SURVEY DATE,
MEASUREO SITE fLOW;<1.0 eli
MAINSTEM DISCHARGE (SUNSHINE l:14,500 e'.
THALWEG GRAOIENT;12.3 Iool/milo
EAST BANK MINOR CHANNEL
!
zo
S
...I
"'"':>
~.:
'"
..
S-t-oo
0"
0",
TRAN6f.CT U
I-
THAhnCT S TkAh:u:cr s.
•••'nt---..l
n
I
I-'
C)
STREAMBED STATION ('ttl I
__..~------------------------------------.-----------------------_.------=------::::-,.,,---'""--..-0
zo
~
...I
'"'":>
~
...I
'"0:
ADflllG GAGE
U4!!.
Al)f&.G GAllE
14.4$2
TRAN6[CT 2 '''''"SIEC'J TRAlolliECr JA
"DfaG G"GE
1'44s4
TRANSECT"
"I I'0'"0 iii iii iii i I ...''''I&1'00 I'ii''i.~!__iii iii ii'•i i •
STREAMBED STATiON (lUI)
Attachment Figure C-10.Thalweg profile of the study site at Mainstem
West Bank Side Channel.
J J J )I )1 ]J I I ]I I I I )).I
]]1 1 J 1 1 1 I 1 1 1 1
3
i
t GOOSE 2 SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE;840925
WATER SURfACE ON SURVEY DATE:
MEASURED SITE fLOW;0.0 ctl
MAINSTEM DISCHARGE ISUNSHINE I;19,600 ct.
THALWEG GRADIENT,9.2 leell mile
I-52:2:f ..r ...1
10-+00
220
2,.n
I
l--'
;l--'
2":--z
0
l-e;.w
...J 2'2W
....
:)
II::210I-
200
20.
0-+00
o 400
~(ADIlf~:~LcOI.)
·TAANSECtS 486 NOT INCLUDED
IN THALWEG SURVEY
TRANSECT I
'.00
TRANSfer 2
I
I
I
I
I
I
I
I
I
TRANSECT :5 lRANSECT 4 TRANSECT'
(Ap!»oaima ..lOl:olionl (Approlimcil.Loco1ion)
I!UOO 2.0+00
Attachment Figure C-11.
STREAMBED STATION lfoe')
Tha 1weg profil e of the study site at Goose 2
Side Channel.
o 500·L--->
F.,I
IAPfWOI5.._)
/
CIRCULAR SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:841010
WATER SURFACE ON SURVEY DATE;
MEASURED SITE FLOW;0.0 oh
MAINSTEM DISCHARGE (SUNSHINEI;14.~00 oil
THALWEG GRADIENT:14.3 h.llmil.
.r
I_'61,.."-I
30+0016+00101"00
lIIA)lUCT "nANSfCT 6
10 ....00
lAANSECT 3
10-tOO
UA)lSfCT I
~-t-OO
..
n ;0:..
I 0;::f-'..
N >..'"-''"
'">;::..
-''"0:
711
"L0+00
STREAMBED STATION ('n.1
Attachment Figure C-12.Thalweg profile of the study site at Circular
Side Channel.
J I )~I J ~1 J J J I J ~J J J I 1
-1 J 1 ]1 1 ]1 1 )1
SAUNA SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:841009
WATER SURFACE ON SURVEY DATE:
ESTIMATED SITE FLOW:<1.0 ell
I.IAINSTEM DISCHARGE (SUNSHINE):14,900 ell
THALWEG GRADIENT:10.4 'ul/mil.
AOf.6 ·GiGil
lG"~J
TlUNUl;T I TRANSECT I lRANSIECT ,TR&N'5~CT of
I-
>+00
lUi h.t _I
10.f-00
5TPEAYBED STATlDN lI"'1
lI..J-OO
Attachment Figure C-13.Tha 1weg profil e of the study site at Sauna
Side Channel.
n
I
I--'
.j::o.
268
266
~-..
~-264
Z
0
I-
0:(
262>
W
..J
W
W 260
~
a:
I-
2a
SUCKER SIDE CHANNEL
TRANSECT 2:
TRANSECT I
/
TRANSECT :3
SUCKER SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE:840926
WATER SURFACE ON SURVEY DATE:
MEASURED SITE FLOW:0.0 ell
MAIN STEM DISCHARGE (SUNSHINE):19,000 ell
THALWEG GRADIENT:7.2 feellmile
TRANSECT 5
TRANSECT 4
20.-00
I....628r..t ...1
256 ,Iii iii iii ,Iii iii i , , ,iii , , , : , ,i ,iii i i j iii iii
OiOO 5+00 10"-00 15+00
STREAM8ED STATION ('eell
Attachment Figure C-14.Thalweg profile of the study site at Sucker
Side Channel.
J j I J !J J .~I D J ,J I J I J ~
1 -J 1 ]1 j 1 ]-]1 J -1
CJ
I
I--'
(}l
97-..:.s-
~
0
i=...>w
-'w .,
w
>
i=...••-'wa:
87.
OtOD
I-
;/
o~
F ••t
tAwo••Scot.)
TRANSECT 2 TRANSECT 3
439 FUI
BEAVER DAM SLOUGH
THALWEG PROFILE
SURVEY DATE:84092~
WATER SURFACE ON SURVEY DATE:--
MEASURED SITE FLOW:0.7 010
MAINSTEM DISCHARGE (SUNSHINE):19,600 010
THALWEG GRADIENT:10.1 fool/mil.
TRANSECT 4 .
TRANSECT 5
-1
5tOO
STREAMBED STATION (to.,I
10too
Attachment Figure C-1S .Thalweg profile of the study site at Beaver
Dam Slough.
-....~.....~.......I'
l
o 200
~-'
ftU
tApflOll.S~ot.l
BEAVER DAM SIDE CHANNEL
THALWEG PROFILE
SURVEr DATE,840920
WATER SURFACE ON SURVEr DATE,__
MEASURED SITE flOW,0 5 cll
MAINSTEM DISCHARGE (SUNSHINE I,19,600 cia
THALWEG GRADIENT;13.0 foot/mill
IINTEftS[CTJON (#
SLOUiH II SlOE C.,,\IUllEL
~'~I ;::::::::::::::------------_..........__.._---------------------------_..__...--------------_..._-----
,-.....
n
I-O'l
TJ!AIIISI[CT I TItAMlfCT of T."NMEeT IS
~-----000 ,,,...I
STREAM6t:D STATION (rul)
Attachment Figure C-16.Thalweg profile of the study site at Beaver
Dam Side Channel.
I I J _I }....•.1 I -~~j J I I :I J I I I
1 j )1 ..~-J J 1 I I 1 ]
SUNSET SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE,84D929
WATER SURFACE ON SURVEY DATE,
MEASURED SITE FLOW,1.01 cia
MAINSTEM DISCHARGE (SUNSHINE 10 17.400 cia
THALWEG GRADIENT,9.D h.lImil•
~
"'''''''leT D TRANSECT I ",A".ECT a TIl:AHIECT'TUNnel.TA ....nc'..,flANnel.
,-148"f ..l ---I
I I I i ,i I j I i i I I I I ,i i i ,I._---.~.--10100 15...00 30f-OO
STREAM8ED STATION ('01')
..
..
,r--
..I I I I I iii i i .,it'
0"'00 !l.-"...n ,tu.nn ••~~~
....
zo
~
'"...
'"'">to;:.....
'"....
(I
I......
.......
Attachment Fi gure C-17.Thalweg profile of the study site at Sunset
Side Channel.
n
I
t-'
CO
SUNRISE SIDE CHANNEL
THALWEG PROFILE
SURVEY DA IE,840926
WATER SURFACE ON SURVEY DATE,--
MEASURED SITE fLOW;0.0 ell
MAINSTEM DISCHARGE ISUNSHINE);19,000 eta
THALWEG GRADIENT;16.0 '..'/mil.
.,.
zo;:
!'
oJ...
"';>"~.....~-r
T,,"'''UUII:
-f
TAAM:lECr ~1'II"AIlIS£Ct ..
I
I
I
I
I
I
I
I
TRANSEl;T I !
TH"HSI'Cr r
I App,g.i.1IQ11 LlIICQrl~ftl
I I~.......----J
111 iii iii ii'""ii'i 'i'",'i,i,",i"I
0"00 UOO 10HI0 ._._-
STREAMBED staTION ('ut)
Attachment Figure C-18.Thalweg profile of the study site at Sunrise
Side Channel.
,I 1 I ,I J I .8 J J J I i J .)J J
1 1 J 1 ~1 }J 1 ~l ))]1 1
BIRCH CREEK SLOUGH
/.
sus/rNA
RiveR
I
o 000
'--------'F..I
{A"to...S~(I1
~BIRCH CREEK SLOUGH
THALWEG PROFILE
SURVEY DATE,840927
WATER SURFACE ON SURVEY DATE:
MEASURED SITE FLOW:340 ch
MAiNSTEM DISCHARGE (SUNSHINE):18,300 eft
THALWEG GRADIENT:4.9 feellmile
.YRANSECT 7 NOT INCLUDED IN THALWEG Su.qVfY
•••
4'6fOQ40+00
I
I
I
I
TRANIiECT 2 I TRANSECT 4 I TRANSECT 6 !
TRANSECT 3 TRANSECT S UANSECT 7
(AppradInGt.Localian I
TINAN5ECT I
3!HOO30tOO
STREAMBED STATION (feel I
--------------~------~--------------------------------------------------------------------------------~,--------------------------------------------
.,.\I Iii i 1 11-..-------2HOO ' , , ,iii .,.f.OI Iiiiiii,i , ,iii ,it'i , ,~I I ii'J j I
21.
•••
'.0
•:.
z
2...
<l>
uJ
...J
uJ
("")
I,.....
I.D
20+00"...00IO~OO0+00
..----------------------------------------------------------------------------------------------------------------------------------------_.
........-....___.-~_~r----
.........----.'--
280-
282
uJ
:>
II:...
STREAMBED STATION Ifeel)
Attachment Figure C-19.Thalweg profile of the study site at Birch
Creek Slough.
TRAPPER CREEK SIDE CHANNEL
THALWEG PROFILE
SURVEY DATE,840913
WATER SURFACE ON SURVEY DATE,-----
MEASURED SITE FLOW,16.4 ell
MAINSTEM DISCHARGE (SUNSHINE),22,100 eto
THALWEG GRADIENT,12.1 'ul/mil.
",Y t..~o
h.r
,ApP(ol.Stol.'
APFlJ,G GAGE
IIU:i1
ADf&G GAGE
'iolIliU
..__.__.....-...........::------------------------------------------------------------_.-------------------------_._-------------_.------------------------------"
AOflU GAGf
iUGs"---,-.
TRANSfCT I TRAH5.i:CT li!TRANSECT:l TRANSECT-4II~".,,,,·1
8~'+OO i ,i I iSlooiii i ,,"1M 'I i .~!M i
..
n
I
No
STREAMBED STATION ('nO
Attachment Fi gure C-20.Thalweg profile of the study site at Trapper
Creek Side Channel.
J »!~~J J ).1 J I ,J ~J 1 B J ~.J )
Attachment Table C-l.Thalweg profile data obtained at Hooligan Side
Channel (RM 35.2).
Date:840925
Time Start:1420 End:1640
Site Flow:0.0 (cfs)a
USGS Discharge:19,600 {cfs)b
Gage No.:35.2S1B
Gage Reading Start:1.50 End:1.50
TBM:ADF&G 30.251 LB 840711
C-21
C-22
-
,...
Attachment Table C-2.Thalweg profile data obtained at Eagle1s Nest Side
Channel (RM 36.2)
Date:840926
Time Start:1050 End:1230
Site Flow:21.2 (cfs)a b
USGS Discharge:19,000 (cfs)
Gage No.:36.2S1C
Gage Reading Start:0.52 End:0.52
TBM:ADF&G 36.2S1 LB 840917
STATION THALWEG \lJSEL c
(ft )ELEVATION (ft)(ft)DESCRIPTION
0+00 86.81 90.12
0+50 88.42 90.11
0+76 88.06 90.12 Transect 1
1+20 89.34 90.18
1+47 89.56 90.20
1+61 89.85 90.23
I"""2+59 89.87 90.40 Transect 2 staff gage 36.2S1
3+00 90.02 90.65
3+80 90.42 91.02
4+54 90.54 91.44,...4+80 90.64 91.46
5+28 90.28 91.52 Transect 3
5+72 90.08 91.50 Transect 4-6+00 89.28 91.54
7+00 88.19 91.54
8+00 89.51 91.55
9+00 87.99 91.57
10+00 88.02 91.56
11+00 89.49 91.53
12+00 90.03 91.56
12+20 90.39 91.53
a r~easured streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-23
Attachment Table C-3.Thalweg profile data obtained at Kroto Slough Head
(R~1 36.3).
Date:840925 Gage No.:36.3S1C
Time Start:1000 End:1150 Gage Reading Start:0.72 End:0.73
Site Flow:O.Oa
19,600 (cfs)bUSGSDischarge:TBM:ADF&G 36.3S1 LB 840711 ~
STATION THALWEG WSEL c
(ft )ELEVATION (ft)(ft)DESCRIPTION
~
0+00 89.46 89.76
0+10 89.55 89.75
0+23 89.60 89.74
0+50 89.40 89.76
0+70 89.31 89.77
0+77 89.55 89.77
0+91 89.59 89.79 ""'"
1+00 89.56 89.75
1+10 89.52 89.72
1+27 89.42 89.78
1+47 89.56 89.76 Transect 1
1+73 89.36 89.75
1+88 89.42 89.74
2+11 89.35 89.75 ~;
2+30 89.22 89.74
2+57 89.27 89.75
2+86 89.25 89.75 -3+00 89.03 89.75
3+40 88.85 89.76
3+83 88.98 89.74
4+60 88.16 89.76 Transect 2 staff gage 36.3S1
4+70 88.95 89.75
5+00 89.14 89.76
5+30 88.98 89.74 -
a Estimated streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
~
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
.....
C-24
-
Attachment Table C-3 (Continued).
C-25
Attachment Table C-4.Thalweg profile data obtained at Rolly Creek (RM
39.0).
Date:840928
Time Start:1155 End:1330
Site Flow:10.9 (cfs)a
USGS Discharge:17,700 (cfs)b
Gage No.:39.0T1C
Gage Reading Start:1.17 End:1.16
TBM:ADF&G 39.0T1 LB 840710
STATION THALWEG WSEL c ~
(ft )ELEVATION (ft)(ft )OESCRI PTION
-0+00 91.35 92.05
0+82 91.54 92.12 Transect 1
1+40 91.29 92.18
1+74 91.72 92.21 -2+62 91.18 92.30 Transect 2 staff gage 39.0Tl
3+00 91.49 92.35
3+54 90.84 92.43 -4+02 91.39 92.44 Transect 3
4+74 91.96 92.50
5+74 91.99 92.63 -6+00 92.00 92.62
6+72 91.17 92.65
7+40 91.51 92.70
7+71 92.36 92.71 ....
8+27 92.13 92.78
8+88 92.58 92.78
9+00 92.54 92.83
9+80 92.41 92.93
10+56 92.37 93.02
10+70 92.42 93.02 Transect 4
11+60 92.59 93.15 -12+00 92.65 93.17
12+74 92.58 93.21
13+70 92.44 93.29 .....
15+00 92.90 93.38
15+40 92.66 93.37 Transect 5
15+95 92.39 93.35 Transect 6
a Measured streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-26
Attachment Table C-5.Thalweg profile data obtained at Bear Bait Side
Channel (RM 42.9).
Date:840927
Time Start:1030 End:1200
Site Flow:0.0 (cfs)a b
USGS Discharge:18,300 (cfs)
Gage No.:42.9S1
Gage Reading Start:Dry End:Dry
TBM:ADF&G 42.9S1 LB 840710
STATION THALWEG I~SEL c
(ft )ELEVATION (ft)"(ft )DESCRI PTION
0+00 89.22 DRY
0+33 90.22 DRY
0+52 89.99 DRY Transect 1
1+03 90.53 DRY
1+17 90.81 DRY
1+72 88.49 88.51
1+90 87.44 88.49 Transect 2 staff gage 42.9S1
2+20 86.01 88.50
2+75 87.89 88.49
3+00 85.34 88.51r-3+30 86.38 88.49
3+58 88.48 88.50 Transect 3
3+65 90.68 DRY-3+80 90.94 DRY
4+21 90.71 DRY
4+80 90.03 DRY
5+28 88.30 88.32 Transect 4
5+77 86.66 88.34 Transect 5
6+00 85.92 88.32
6+27 88.25 88.27
6+70 86.27 DRY
7+10 89.17 DRY
7+70 89.32 DRY
8+23 89.15 DRY
8+54 89.53 DRY
a Estimated streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
f"""of thalweg profile.
C-27
Attachment Table C-6.Thalweg profile data obtained at Last Chance Side
Channel (Rr~44.4).
Date:840927
Time Start:1300 End:1430
Site Flow:0.0 (cfsl a b
USGS Discharge:18,300 (cfs)
Gage No.:44.4S1
Gage Reading Start:Dry End:Dry
TBM:ADF&G 44.4S1 LB 840725 USGS -
STATION
(ft )
0+00
0+63
1+30
2+27
3+04
3+93
5+00
6+60
6+00
6+32
6+46
6+63
6+71
6+81
7+07
7+40
7+90
8+40
8+77
9+30
10+06
10+31
10+56
11+06
THALWEG
ELEVATION (ft)
91.78
91.94
91.96
92.34
92.57
93.58
93.26
93.03
92.97
92.76
93.24
93.36
93.27
92.88
93.23
93.26
93.48
93.29
92.41
92.15
92.91
93.37
93.80
93.67
WSEL c
(ft )
91.97
91.99
92.01
92.38
DRY
DRY
93.28
93.28
93.27
93.26
93.28
DRY
93.29
93.28
93.26
DRY
DRY
93.31
93.35
93.36
93.36
93.39
DRY
DRY
DESCRIPTION
Transect 1
Transect 2 staff gage 44.4S1
Transect 3
Transect 4
Transect 5
Transect 6
-
-
a Estimated streamflow at time of the thah/eg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-28
-
I~
Attachment Table C-7.Thalweg profile data obtained at Rustic Wilderness
Side Channel (RM 59.5).
-
Date:840928
Time Start:1020 End:1300
Site Flow:0.0 (cfs)a
USGS Discharge:17,700 (cfs)b
Gage No.:59.5S18
Gage Reading Start:Dry End:Dry
T8M:ADF&G 59.5S1 R8 840712
-
--
-
STATION
(ft )
0+00
0+26
0+83
1+86
2+69
3+42
4+53
6+52
7+74
8+74
9+52
10+84
12+35
12+98
13+82
14+53
15+50
16+07
16+86
17+22
17+97
18+65
19+17
20+00
20+77
21+08
21+44
THALWEG
ELEVATION (ft)
88.61
90.24
90.19
89.90
88.82
88.15
89.24
89.54
90.45
91.24
91.56
91.28
92.42
92.46
92.48
92.56
92.67
92.11
92.57
92.78
92.32
92.21
92.76
92.49
92.73
93.67
91.34
WSEL c
(ft)
90.55
90.54
90.55
90.55
90.56
90.55
90.55
90.74
90.56
DRY
DRY
92.09
92.61
92.61
92.67
92.81
92.33
92.82
92.83
93.00
93.05
93.02
93.01
93.32
93.28
DRY
93.33
DESCRI PTION
Transect 1
Transect 2
Transect 3
Transect 4 staff gage 59.551
Transect 5
.-
a Estimated streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-29
---"---------------------_._------~~---"-----------------
Attachment Table C-8.Thalweg profile data obtained at Caswell Creek (RM
63.0).
""",..
-
Date:841009
Time Start:0930 End:1140
Site Flow:27.5 (cfs)a
USGS Discharge:14,900 (cfs)b
Gage No.:63.0T4A
Gage Reading Start:1.16 End:1.16
TBM:ADF&G Caswell Cr.TR 4 LB 840711 -
STATION THALWEG WSEL c
(ft)ELEVATION (ft)(ft )DESCRIPTION
~
00+00 90.24 91.86
00+85 90.21 91.82
01+90 90.57 91.96
02+86 90.48 91.91 -03+75 90.38 92.00
04+59 90.64 91.96
05+45 90.85 92.14
05+72 91.35 92.21
06+11 91.55 92.48
06+96 91.18 92.59
07+60 91.73 92.93
07+74 91.63 93.01 Transect 1
07+92 91.41 92.98
08+41 92.23 93.26
08+87 92.10 93.46
09+17 92.32 93.47 Transect 2
09+56 91.17 93.47 -10+12 92.13 93.53
10+43 92.36 93.58 Transect 3
10+79 91.87 93.58
11+11 92.76 93.57 Transect 4 staff gage 63.0T4 ~
11+75 92.53 93.73
12+25 92.78 93.78 Transect 5
13+02 92.33 93.91 ,~
13+39 92.73 93.87 Transect 6
14+19 93.06 94.03
14+56 92.24 94.14 -
a Measured streamflow at time of the thalweg measurement.-b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-30 ~
Attachment Table C-8 (Continued).
STATION
(ft)
THALWEG
ELEVATION (ft)
vJSEL a
(ft)DESCRI PTION
-
-
14+92 92.25 94.19 Transect 7
15+29 92.70 94.25
15+85 91.85 94.38
16+08 92.96 94.40
16+83 92.85 94.54
17+39 93.81 94.66
a Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-31
Attachment Table C-9.Thalweg profile data obtained at Island Side Channel
(RM 63.2).
-
Date:840930
Time Start:1000 End:1115
Site Flow:1.0 (cfs)a b
USGS Discharge:17,800 (cfs)
Gage No.:63.2S6B
Gage Reading Start:Dry End:Dry
TBM:ADF&G Island TBM RB 1984
STATION THALWEG ~~SEL c
(ft )ELEVATION (ft)(ft )DESCRIPTION
00+00 88.47 90.22
00+73 90.27 90.73
01+38 90.30 90.75
02+34 90.70 90.82
02+90 89.10 90.86 Transect 1 staff gage 63.2S1
03+15 87.97 90.89
03+54 87.30 90.93 Transect lA staff gage 63.2S7 -04+22 89.00 90.88 Transect 2 staff gage 63.2S2
04+90 89.79 90.89
05+20 90.80 90.87
05+67 90.30 91.23 Transect 3 staff gage 63.2S3
06+50 91.40 91.56 Transect 4 staff gage 63.2S4
07+38 90.91 91.56 Transect 4A staff gage 63.258
07+97 89.22 91.56 -I08+64 88.60 91.57 Transect 5 staff gage 63.255
09+37 88.72 91.55
10+37 89.02 91.54 Transect 6 staff gage 63.256 ....,
11+94 91.22 91.54
13+15 92.65 DRY
14+13 92.64 DRY
15+18 91.07 92.22 ""'"
a Measured streamfl ow at time of the thalweg measurement."'"'
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.-c Water surface elevation determined at each thalweg point during survey
of thalweg profile.-
C-32
,.--
Attachment Table C-10.Thalweg profile data obtained at Mainstem West Bank
Side Channel.
Date:841010
Time Start:1235 End:1415
Site Flow:1.0 (cfs)a
USGS Discharge:14,700 (cfs)b
Gage No.:74.4S1B
Gage Reading Start:Dry End:Dry
TBM:ADF&G Mainstem West Bank TBM
RB 840915
-
--
STATION
(ft)
00+00
00+64
01+18
01+46
02+18
03+29
03+98
04+95
05+74
06+58
07+00
07+38
07+90
08+06
08+64
09+07
09+84
10+44
11+18
11+78
12+19
12+52
12+87
13+56
14+17
14+97
THALWEG
ELEVATION (ft)
91.73
91.71
91.59
92.43
91.99
91.10
91.25
91.60
91.88
92.25
92.50
92.37
92.51
92.78
92.71
93.00
93.08
93.10
93.90
94.12
93.74
94.09
94.52
94.90
95.04
94.32
WSEL c
(ft)
92.43
92.44
92.46
92.61
92.62
92.64
92.62
92.63
92.63
92.62
92.76
92.79
92.78
93.04
93.03
93.05
93.29
93.46
94.10
94.34
94.34
94.32
94.63
95.15
95.25
95.28
DESCRIPTION
Begin main channel
Transect 1 staff gage 74.451
Transect 2 staff gage 74.452
Transect 3 staff gage 74.4S3
Transect 3A staff gage 74.456
Transect 4 staff gage 74.454
End main channel
a Measured streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-33
Attachment Table C-I0 (Continued).
'"""
-
STATION THALWEG HSEL c
(ft)ELEYATION (ft)(ft)DESCRI PTION -
04+95 92.64 DRY Begin east channel
06+14 93.16 DRY
07+36 94.50 DRY Transect 2A staff gage 74.455
07+82 94.63 DRY
08+33 93.90 DRY Transect 3
08+56 93.86 DRY
08+84 93.28 DRY
09+24 93.90 DRY Transect 3B staff gage 74.457 _.
09+61 94.60 DRY
10+19 95.36 DRY
11+02 97.16 DRY Begin east channel
a Measured streamflow at time of the thalweg measurement.-b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c ~
Water surface elevation determined at each thalweg point during survey
of thalweg profile.
~,
-
-
-
C-34
Attachment Table C-11.Thalweg profile data obtained at Goose 2 Side
Channel (RM 79.8).
Date:840925
Time Start:1000 End:1300
Site Flow:0.0 (cfs)a
USGS Discharge:19,600 (cfs)b
Gage No.:74.8S2B
Gage Reading Start:Dry End:Dry
TBM:GOOSE 2 TR2 RB 1984
-STATION THALWEG i~S EL c
(ft)ELEVATION (ft)(ft )DESCRI PTION
-00+00 212.00 212.90
00+05 212.89 213.00
00+37 213.49 213.60
r-00+72 213.42 213.73
01+50 212.41 213.70
01+95 211.40 213.62-02+50 213.41 213.69
03+19 213.10 213.68
03+71 212.70 213.69
04+16 213.31 213.71
04+69 212.59 213.69
05+60 212.71 213.69 Transect 1
06+24 212.40 213.69
07+09 213.41 213.68
07+72 213.92 DRY
08+77 214.53 DRY Transect 2 staff gage 74.8S2
09+73 213.72 DRY
10+66 214.23 DRY
11+82 215.85 DRY Transect 3
12+53 215.40 DRY
13+45 216.39 DRY
14+38 216.00 DRY
15+21 215.93 DRY
.....15+99 213.75 215.27
17+08 211.10 215.27
18+08 214.49 215.27
18+84 216.16 DRY
~20+46 214.91 215.74 Junction with mainstem(,i
a Estimated streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
.....(15292780)corresponding to date of thalweg measurement .
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-35
Attachment Table C-12.Thalweg profile data obtained at Circular Side
Channel (RM 75.3).
-
-
Date:841010 Gage No.:75.351B
Time Start:0900 End:1140 Gage Reading Start:Dry End:Dry
Site Flow:0.0 (cfs)a ""'"USGS Di scha rge:14,500 (cfs)b TB~~:ADF&G Circular TBM RB 840824
STATION THALVJEG HSEL c
(ft)ELEVATION (ft)(ft )DESCRIPTION
00+00 82.57 85.52
00+53 82.52 85.51 ~
01+54 84.44 85.54
02+35 83.36 85.52
04+02 85.17 85.50
04+50 85.64 85.66 -,
05+21 86.87 DRY
06+80 87.15 DRY
07+26 83.46 87.16
07+97 85.12 87.16
08+70 85.10 87.14
09+39 87.30 DRY Transect 1 staff gage 75.3S1
10+34 87.86 DRY -
11+41 88.32 DRY Transect 2 staff gage 74.352
12+10 87.52 88.06 Transect 2A staff gage 74.3S6
13+29 87.88 88.08 ~
13+95 89.30 DRY Transect 3 staff gage 75.353
14+90 89.48 DRY
16+33 89.13 DRY Transect 4 staff gage 75.354 _.
16+70 89.04 DRY
17+20 88.04 89.04
18+00 86.90 89.04 Transect 5 staff gage 74.3S5
19+37 88.61 89.05 -,
20+65 88;00 89.17
21+14 88.63 89.14
21+51 89.35 DRY -21+82 88.85 89.06
22+49 88.13 89.07
22+98 88.62 89.04 """',23+34 89.08 DRY
23+84 88.53 88.93 -a Estimated streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station ~
c (15292780)corresponding to date of thalweg measurement.
Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-36
Attachment Table C-12 (Continued).
STATION THALWEG WSEL a
(ft)ELEVATION (ft)(ft)DESCRIPTION
24+17 88.93 DRY
24+70 87.47 88.90
25+00 86.64 88.90
25+32 88.84 88.94
"""'25+95 88.86 DRY
26+62 88.76 DRY
27+56 90.06 DRY
a Water surface elevation determined at each thalweg point during survey
of thalweg profile .
.....
-
-
-
C-37
---------.~-----------------------------
Attachment Table C-13.Thalweg profile data obtained at Sauna Side Channel
(RM 79.8).
~,
Date:841009
Time Start:1320 End:1500
Site Flow:1.0 (cfs)a b
USGS Discharge:15,000 (cfs)
Gage No.:79.8S2B
Gage Reading Start:Dry End:Dry
TBM:ADF&G Sauna TBM LB 840823 -
a Estimated streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
STATION
(ft)
00+00
00+79
01+43
02+09
03+05
03+99
05+16
06+21
06+99
07+68
08+54
09+09
09+68
10+27
10+80
11+76
12+59
13+25
13+69
14+06
14+28
14+45
14+57
THALWEG
ELEVATION (ft)
87.49
87.68
84.44
87.43
88.06
88.31
88.60
88.70
88.83
88.87
84.79
87.48
88.57
87.50
88.94
89.20
89.74
90.00
88.98
87.01
87.56
90.33
87.79
\~SEL c
(ft)
87.67
87.87
87.84
87.86
88.28
88.51
88.75
88.90
89.00
89.00
88.99
88.90
88.92
89.02
89.00
DRY
DRY
DRY
DRY
89.16
89.02
DRY
88.84
DESCRIPTION
Transect 1 staff gage 79.8S1
Transect 2 staff gage 78.852
Transect 3 staff gage 79.8S3
Transect 4 staff gage 79.8S4
Junction with side channel
-
-
-
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-38
Attachment Table C-14.Thalweg profile data obtained at Sucker Side
Channel (RM84.5).
Date:840926
Time Start:1120 End:1250
Site Flow:0.0 (cfs)Q b
USGS Discharge:'19,000 (cfs)
Gage No.:84.5S2C
Gage Reading Start:Dry End:Dry
TBM:ADF&G Sucker TBM LB 840823
--STATION THALWEG t~SEL c
(ft)ELEVATION (ft)(ft)DESCRIPTION
00+00 261.03 DRY
00+52 261.15 DRY
01+32 261.29 DRY Transect 1
02+49 261.25 DRY Transect 2 staff gage 84.5S2
03+43 261.37 DRY
04+43 261.96 DRY Transect 3
05+40 261.48 DRY
06+48 262.53 DRY Transect 4
07+60 262.29 DRY Transect 5 staff gage 84.5S5
08+46 261.96 DRY-10+05 261.91 DRY
11+12 262.58 DRY
12+04 262.74 DRY
13+17 262.28 DRY
14+12 262.89 DRY
15+20 262.94 DRY-16+36 263.54 DRY
17+97 263.66 DRY
19+25 261.80 263.46
20+05 261.37 263.46
21+03 263.88 DRY
a Estimated streamflow at time of the thalweg measurement.-
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-39
Attachment Table C-15.Thalweg profile data obtained at Beaver Dam Slough
(RM 86.3).
Date:840925 Gage No.:86.3S1C
Time Sta rt:1540 End:1640 Gage Reading Start:1.42 End:1.42 "'"'"
Site Flow:0.68 (cfs)a
(cfs)bUSGSDischarge:19,600 TBM:ADF&G Beaver Dam TBM RB 840914
~
STATION THALvJEG WSEL c
(ft )ELEVATION (ft)(ft)DESCRIPTION
00+00 90.36 92.70
00+91 92.29 92.81
01+45 92.00 92.83 Transect 1 staff gage 86.3S1
02+36 21.47 92.83 Transect 2
03+07 91.96 92.84
03+94 91.30 92.84 Transect 3
05+34 91.66 92.90 Transect 4
05+83 92.27 92.89 Transect 5
07+22 91.49 92.92
08+72 90.54 92.94
10+47 91.17 92.91
11+66 92.29 92.89
12+57 92.80 93.07
a ~leasured streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-40
-
-
Attachment Table C-16.Thalweg profile data obtained at Beaver Dam Side
Channe 1 (RM 86.3).
Date:840925 Gage No.:86.3S4D
.-Time Start:1350 End:1646 Gage Reading Start:1.35 End:1.35
Site Flow:0.47 (cfs)a
USGS Discharge:19,600 (cfs)b TBr~:ADF&G Beaver Dam TBM RB 840914
STATION THALWEG WSEL c
(ft )ELEVATION (ft)(ft )DESCRIPTION
--00+00 90.93 91.51
00+18 91.25 91.55
00+63 91.34 91.64
.-01+51 90.70 91.65
02+21 90.48 91.66 Transect 1
02+78 91.04 91.66
03+38 91.60 91.91
04+48 91.60 92.25 Transect 2
05+42 92.40 92.63
06+32 92.29 92.66 Transect 3
07+13 91.25 92.69
07+87 88.74 92.68 Transect 4 staff gage 86.3S4
08+28 87.88 92.70
09+05 88.15 92.67
09+18 91.85 92.77
09+95 92.06 92.72
10+83 90.42 92.76"""11+16 90.18 92.72I
11+50 92.55 92.56
12+56 92.42 DRY
13+84 94.15 DRY
14+87 93.23 DRY
15+25 94.83 DRY
15+92 91.19 DRY
a Measured streamflow at time of the thalweg measurement.
pGlI
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.-
C-41
Attachment Table C-17.Thalweg profile data obtained at Sunset Side
Channel (RM 86.9).
-
Date:840929
Time Start:1140 End:1430
Site Flow:1.01 (cfs)a
USGS Discharge:17,400 (cfs)b
Gage No.:86.9S1C
Gage Reading Start:0.47 End:0.47
T8M:ADF&G Sunset IBM LB 840822
STATION
(ft)
00+00
00+52
01+41
02+81
03+70
04+43
05+37
06+13
06+95
07+48
09+12
09+89
11+34
12+18
12+39
13+91
15+24
15+90
16+45
17+40
18+06
19+78
21+34
22+38
THALl~EG
ELEVATION (ft)
91.59
91.99
90.92
91.92
91.98
92.15
91.67
90.65
92.15 d92.30
92.92 d92.60
93.08
93.60 d93.40
92.97
92.01
93.60
94.34 d94.20
94.40
92.30
92.20 d90.60
92.08
92.31
92.31
92.29
92.39
92.57
92.61
92.53
92.58
92.70
93.18
93.26
93.34
93.85
93.79
93.85
93.83
93.86
94.60
94.62
94.69
94.71
94.72
94.82
DESCRI PTION
Transect 0 staff gage 86.950
Transect 1 staff gage 86.9S1
Transect 2 staff gage 86.952
Transect 3 staff gage 86.9S3
Transect 4 staff gage 86.954
Transect 5 staff gage 86.955
Transect 6 staff gage 86.956
-
-
a Measured streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
d Thalweg elevation determined at each thalweg point from cross section
profiles from the hydraulic model rather than from the original
thalweg survey.
C-42
Attachment Table C-17 (Continued).
STATION
(ft)
23+72
24+88
25+21
26+45
28+31
29+64
THALWEG
ELEVATION (ft)
92.07
93.33
94.57
95.04
95.75
96.32
\~SEL a
(ft)
94.73
94.73
94.74
95.20
95.91
96.48
OESCRI PTION
,~
-
-
-
-
a Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-43
Attachment Table C-18.Thalweg profile data obtained at Sunrise Side
Chan ne 1 (RM 87.0).-,
-
Date:840926 Gage No.:87.0S4C
Time Start:1530 End:1640 Gage Reading Start:Dry End:Dry --
Site Flow:0.0 (cfs)a
USGS Discharge:'19,000 (cfs)b TBM:ADF&G Sunrise S.C.TR4 RB 1984
STATION THALWEG WSEL c
(ft )ELEVATION (ft)(ft )DESCRIPTION
00+00 91.69 91.81 ~
01+09 92.26 DRY
02+42 92.54 DRY Transect 1
02+97 93.21 DRY
03+50 93.26 DRY Transect 2
04+82 93.38 DRY
05+73 93.47 DRY Transect 3
07+32 94.22 DRY Transect 4 staff gage 87.0S4
08+39 94.87 DRY
09+57 95.63 DRY Transect 5
10+75 95.79 DRY """
11+86 96.17 DRY Transect 6
12+70 96.68 DRY
13+71 95.84 DRY ~
14+54 96.01 DRY
15+83 95.89 DRY
16+95 96.83 DRY -
a Estimated streamfl ow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c --Water surface elevation determined at each thalweg point during survey
of thalweg profile.
"..
C-44
Attachment-Table C-19.Thalweg profile data obtained at Birch Creek Slough
(RM 88.4).
Date:840927
Time Start:1115 End:1540
Site Flow:34.0 (cfs)a
USGS Discharge:18,300 (cfs)b
Gage No.:88.4S1B
Gage Reading Start:1.31 End:1.31
TBM:R&M Consultants Birch Creek
89.3 51 LB 1982
-
-
....I
STATION THALWEG WSEL c
.(ft)ELEVATION (ft)(ft)DESCRIPTION
00+00 276.59 278.76
01+08 278.67 279.45
03+29 280.34 281.07
05+00 279.91 281.16
06+47 279.81 281.25
07+91 280.18 281.33
09+52 279.74 281.38
10+57 280.19 281.45
12+31 280.40 281.53
13+78 280.48 281.68
14+77 279.61 281.77
15+12 280.88 281.78
16+62 280.63 281.85
18+11 281.09 281.84
19+15 279.26 282.04
19+43 281.52 282.04
20+72 280.86 282.17
22+14 280.90 282.30
23+23 281.15 282.38
24+40 282.00 282.38
25+52 280.99 282.49
26+31 281.49 282.50
27+57 281.36 282.57
29+42 281.36 282.66
30+25 281.67 282.73
31+14 281.53 282.77
32+39 281.43 282.78
a Measured streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c ~Jater surface elevation determined at each thalweg point during survey
of thalweg profile .
C-45
Attachment Table C-19 (Continued).
""""
STATION THALWEG WSEL a
(ft )ELEVATION (ft)(ft)DESCRI PTION ~
33+51 281.55 282.92 -,34+60 281.66 282.92
35+60 281.47 282.98
37+01 281.56 283.14
37+53 281.18 283.04 Transect 1 ~
38+21 282.03 283.09
39+25 281.64 283.15
39+56 281.91 283.13 Transect 2 staff gage 88.452 ~
40+13 281.88 293.23
40+55 282.31 283.31 Transect 3
41+13 282.35 283.48
41+76 282.46 283.66 Transect 4
42+97 281.27 283.57 Transect 5
44+09 282.06 283.62 Transect 6 staff gage 88.451
44+93 282.70 283.62 """45+38 282.54 283.69
46+13 281.84 283.75
46+88 282.20 283.90
""'"'47+27 282.16 283.97
a Water surface elevation determined at each thalweg point during survey
of thalweg profile.
-
C-46
Attachment Table C-20.Thalweg profile data obtained at Trapper Creek Side
Channel (R~1 91.6).
-
Date:840913
Time Start:1000 End:1224
Site Flow:16.4 {cfs)a b
USGS Discharge:22,700 (cfs)
Gage No.:91.6S1C
Gage Reading Start:0.72 End:0.72
T8M:ADF&G Trapper T8M RB 840822
STATION
(ft )
0+00
0+55
1+08
1+66
2+44
3+32
4+10
4+82
5+39
6+23
7+23
8+25
9+29
10+42
11+42
12+08
13+17
14+01
15+81
THALWEG
ELEVATION (ft)
89.36
90.07
90.61
91.49
90.71
90.39
90.11
89.79
90.00
90.21
90.42
90.60
90.79
91.47
91.70
92.04
91.80
92.25
92.98
WSEL C
(ft )
90.29
90.62
91.09
91.94
91.96
91.96
91.95
91.96
91.96
91.96
91.95
91.98
91.98
91.98
92.15
92.43
92.54
92.62
93.31
DESCRIPTIO~I
Transect 1 staff gage 91.652
Transect 2 staff gage 91.653
Transect,3 staff gage 91.654
Transect 4 staff gage 91.6S1
a Measured streamflow at time of the thalweg measurement.
b Mean daily mainstem discharge at Sunshine USGS gaging station
(15292780)corresponding to date of thalweg measurement.
c Water surface elevation determined at each thalweg point during survey
of thalweg profile.
C-47
-AT T ACH MEN T D
-J i J f .,J 1 t ]J j I I 1 1
~l .'~'.,"-,LI ..."-\1\r"J-(')I,C!.\\._.J l____~_II \2'~;../l (:-;
105 -
104·-
1 02;
102
101 -
100
.('_....
99 -t
'0._./9El:z
0 97 -F
96 --4
'-'-'It.--
I..LJ 95 --.1
L1.J 94-
LLJ
(\7'-.............~)
'::l i=92 -.«I
..-1i--'
W 91 -a::
90 -
8 (,\-~"
BEl
8''''1 l
86 -
8fl -.
0
GA.GE NO::55,2S1
._",
\;-1\_-~/
'"'-,I
'-'-I......../.......--......
....~,
......".j
"--
"_/--"..../~-,.-------------.//
~----.--...._--T-_,__....,___---,__-___,--__,-_______r-·-_._I ....,-------r----
4-0 80 120 160 200 24-0 2130
DISTA.N CE FF.~OM LEFr BAN K HEADPI N(FT)
Attachment Fi gure 0-1.Cross sectional profile obtained 50 feet
upstream of transect 3 at Hooligan Side
Channel.
f"-i",,-"'"l E--(--"_-=-~\1.,,_.]_.--.._=)f\.,j E=~3'T (...........,ii"(-'.
--)I'".,.j,
-_._.__.__.._--"~~~-~,-~..-.........-.-----_..._._---'------"'''''----~--~-"-~,-----...-~--._~-~-----."_··..............-·~~~-·....-"-~-·_·_-'-·----I
.....
\J\F
\!'--~,/
"I",",I'"",,
',--'--~j
......"........~--..~.
"-../-'-.._"...-..._--...............,/
105 --
'104--
1 0::';-
102 -
10'1 -
100 -
.•..~....'"
99 -t
.'""---.....9BL,
,(~)C~7......J.
1--
9E.i -.r.:(:
::::::.
liJ 95-lw 94 -w
93 ->,
\-.9?0 :=l ,-I
N liJ 91rt::
90
fig
88
87
86
85 -r-.
o
.----,
4-0
GAGE :56 .2S 1
---,---I I ...---,----I I I I ·----T---,----
80 1 20 1 60 200 24-0 280
DIST.ANCE FROtvl L.EFT BANK HEA.DPIN
Attachment Figure 0-2.Cross sectional profile obtained at transect 2
of Eagle's Nest Side Channel.
..~..1 ~.,I )~1 ;1 •it I J J ~1
·.~1 .~J 1 J }1 ""}'1 1
1,(I:;')(~)'1'-('\(::::.~'L (-.)1 I (-:"L_I L J c-.t.~[....,..r .........."-_~-''-..J ........)...~._'....J ',,__}I I I L_..l \._J
C?AGE 1",10:36.3S'1
1 [)~i ..-------.---.--..-.----.-..-.-----.-.----.--.-.---'-.--.--.--.-----~---..-.-.....--_......_-_.-
\~\.--....._-~---~_._-I..~..,~-~-~.._-----.
1 04-..
103 ..
102
1 01 ..
100 -r'-,..'-'.99 ..~~
'~._.,~9212.:
0 97~96.,:[
::::::1-
IJ.J 95._J
IJ.J 94
W
93'"-"~
f-a'-'c::r <f ·../LI._1ww 9111:'
90
89
SfJ
87
86
8~)
0 -+0
J
l/'
(
.--r-.....--.------.----.·---,------.I I
aD 1 20 1 GO 200 2-+0
DIST/,N CE FROM LEFT BAN K HEADPI N(FT)
T-'
280
Attachment Figure 0-3.Cross sectional profile obtained at transect 2
of Kroto Slough Head.
I :;~t (-)L L""'j'/
\-'.-c:F~:F-E=~<:
10~)__. ........GAGE NCo:':';9.0T11()~.-..-..---.--------.--.---.-----.-.-.-.--------.---.-----.--'-,,-."-'
1 OJ -
)
./
(
/l
,J
./l
/
./
~......"
/'
/'./,.-."'-_._--,\f
.\....
93 .
92
91
90
89 -.
sa
S7
86 -
85 -r-T-·--r--'-·T---T--,-r I I .--·.---.--T-------r-,.-T---·'-T--·
o 20 40 60 80 100 1 :20 140 160 1 eo 200
102 -
1 0'1 .'
()~'....10 ...".-'........\
99 _.'\
98
97 -\
l.)n -~.,
f,\..
\.'.",
\-~......\-~..~·I~._....-_.-...-,--
t
.:::::t-
::~o
~
llJ_J
I..I.J
I.L.I
':;=
._1wa::
...-,
..._....
o
I
-P>
DI'ST.ANC:E FROM LEF-I BANK HEADPIN(FT)
Attachment Figure 0-4.Cross sectional profile obtained at transect 2
of Rolly Creek.
I I I a I J ,J ~J l l J ,)~
J --)]1 J ]
E:.)E~L~f~))...I \.'\
"1
E3/()\I"r C""/1 .
"""),J I,.',~-,../'-.-..~...
]1 ]1
105 _GAGE NC"4'/9~1
1 O~.---.---,..-..----.-----.....---"----.-.-------'....'.-~~,,--::----._------------...-._....--.----
r
-··.........
\
\I
\I
')/
'I"\~---,(
"'\.,I
.....\),.......,
....
""-,
\
\,,----./
1 0.3
102 -
10'1
100 ..
....---.."
99t
....i"'9 tl ...L-
0 971-.«96
,...")"
LLI 95...-Jw 94
W q7:>"-'...J -
.....-
9204'
I _J
(.J1 \..LJ 91a:::
90
89 ..
88 ..
87
86
85
[)
-.--r-I I
20 4·0
I-~-I-~-T-,.--r---.--___r--r-_,__r--T-T~....,._-
60 80 1 00 1 20 1 40 160 1 80 200
DISTA.N r.::;E FROM LE FT BAN K HEAD PIN (FT)
Attachment Figure 0-5.Cross sectional profile obtained at transect 2
of Bear Bait Side Channel.
93
94
o
I
Q)
...-.-.....
t;::
~-.~
:z
()
j:..-=-
"t".W
_J
IJ.J
W'-...j::
'<1"._J
LlJ
11:::
L "c--"'-1'-/''''.L I ,,",I"j '--'"I~-,'~./'~'"L'J.--I ,--'L}"\i -"~/(_l ...'l..)'-.R .......·I ~",\.-...'_''-__);,.'J.._._.....
G;A.CE NO:44.4S 1
'1 0 5 -.,---------'--------.-----.-..--..--..-.----------..-----~--'-'-'-'-~-"---"---"-'''-'''-''-'----'-------'''--''--'1
1 04--
1 02;
1 02 J
1 01 I
I'
'100 /
99 -\",\I
98 \:::\/
95 ~
-'"I.'-.......--....._-I
----..,--,-.-~..--------.-'-----------I----~.-...............
q"-''"L.
91
90 -
aSl
sa
87 -
86
85 --r-I-............------r---T-~-_r____.-I--'I ..---.---r---I--r---I-.-r--~-
o 20 40 60 80 1 00 1 20 1 +0 1 60 1 80 200•
DIST.ANCE FROM LEFT BANK HE.ADPIN(FT)
Attachment Figure 0-6.Cross sectional profile obtained at transect 2
of Last Chance Side Channel.
1 1 !t I 1 I J J )J 1 J 1 ~1 I
1 1 1 1 1 1 J 1 j ]I f
l=-~?l J C"~,.-r I -:I ,_.'.._J C.\\/I[[-)[_..F..··[.J E--"-'",'---"I I ---'<''\...--»::.)/_._-----_.~.--
G.AGE NO:59 .:::OS 1
(--.,/..-.
--'-l ('-)./"_/
._\
,."-------/,,/'"......-'"/
"/"'--~-~-~--'./----....-.....--
1 OE.\~
'1 04-_.
10 ~~)
102 -
10'1
100 -
...--....99t:
.~--...I'98 -L
1-"97-"
f=4:9G:::1-
IJJ 95---Iw 94--w
93:::=.
i=92 --0 .<1'"I _1......,
lIJ 91D:::
90 -
89
88
87 --
86
85
0
j
........-
I I I -,-I I I I .---.-I ,--.----r-----,---r---,----.-·-,--
20 40 60 80 100 1:20 '140 160 180 200
DISTAN CE FROM LEFT BAN I<HEADPI N(FT)
Attachment Figure 0-7.Cross sectional profile obtained at transect 4
of Rustic Wilderness Side Channel.
,'-'':'.,.."..,"If 'l IIl_~~1 '.~......'.II \,I -
'.......'.......,_.1 ~I ',I __~k._.__...~
......,....-\....-E'-'f '.(.".;~_..~<'..=-..~~./<'.:,'-1'-F-:::'/1"\,L ..._.•
92 -
96 -
95 --
94--
9::;--
91 _.
J
..."oq _·t ./..,"~../.
ge·...'.......,./
'I
'\I
(
\!
.)\..._p __.....__......_...__.._.~J
.........__....n_
90 ..-
!,:,lj'_
~~~.='_~___________(;:,-~f=_~~~_~~:':H _____.
1 0.:_1 .~
1 02 .0'
1 0'1 -
100-
,.,.~
--.....
·_...
C)
1-.·,t'---.'~J
._J
11.1
W
::'>
I-
<:l._1
I.JJ
0.::::
l~~
o
I
00
eo --
8 f.i -
~.......u l ..-
86 -
8!:i -t--..------r-----,------j---r----.--..----r-·-----r----..------T·--·---·-·-j-·------..·-
[)20 +0 60 eo 1 (1)
DISTANCE FROM L.EF~BA.NK HEACIPIN(FT)
Attachment Figure 0-8.Cross sectional profile obtained at transect 4
of Caswell Creek.
J J J J .1 )~J I ..~I '~j !I J J J
""J 1 )]1 ]1 1 }
I C:::,l /\,1"'.....J f-)(::',./(-...
'..............""_I,".._.,'~_),•••l t........._l
(;/\GE r\lo:(i:3.2 S 1
-1"F;;~-1
92 -
I
I'
l
\.__./~-'--"
\.I'.'-._...•/
""-...
'-,....\..\
97 -
91
90
sq -
94-
93 -
95 -J~----.~,
-......-._----------~-..._-~------
99
921
96
10 t\-r-------------------.------
104--
103 --
102
1 1]'1 -
100 -
:zo
f-.<.t
'::::~
i.L1_I
lJ.J
L.L1
~>
i=.<1'
.-.i
W
ct::
..~:--
1.1...
.~--...
o
I
1.0
o
88
87
86
85 -r--I --.----.----T-----r--.,.----r--.,.---T------.--'-------.--.---·---r--..---'
4-0 80 120 160 ZOO 24-0 280
DISTA.NCE FPOM LEFT BA.NI<HEADPIN(FT)
Attachment Figure 0-9.Cross sectional profile obtained at transect 1
of Island Side Channel.
I .--"'...l ,',r I [....---I r-~:=-)._i~'·,..\...,)~=::;/'/(\._.::,-r·'·..····,"1 /\'""'\~.lL.....!\
GAGE NO:(i.3.2S7
_~J
96 -""(
95 -."-.'".~J
9 A ~"'-'-"--""..~.".."I
\-----)'
""T .'........~~-................9.)-._~..,""'-..'"..-...........I
92 -~......
91 -~!
:~~"-'\)
\
88 \\...................
1 0 5 -...----------.--..--.---.-..-~-.-...-.--...---.--.--...-.-.--.-.-.-.--..-----.--.----...--.-..--.---..---.-.-,
1 04-
1 0 ~'.i -
'102 -
'1 0'1 ..
100 -.
99 _.
98 -
97
--'zo
~W
...J
lJJ
W>
~,q
.Jw
D:::
~,............
1:;::
o
I......
o
87
o
86
85 -+--I I I -----,-----,---.--r-----"l--,---I ,--,---,----'1-.-
40 80 1 20 1 60 ZOO 2+0 2130
DISTA.NC:E FF:OM LEFT BANK HEADPIH(FT)
Attachment Figure 0-10.Cross sectional profile obtained at transect
lA of Island Side Channel.
-~I I J 1 J ~I ~J J -J I I I J .1 I J
)J 1 ]]1 }]J 1 J ])1
I (.;l l:.-.t'\,J 1-)........~J \'._.~::;;.i/I
/C=:::"'1-'f"'-')(-')~"-:~~.L::~
(;At;E NO:6:3.2S2
10 5 -..-----------..-------..-----.-.----.-----~-..--.---..-..--.-..-.-.--.--.---.--..----.-_.-~------...,
'104 -
1 0~5 -
-r-----.--,-..--..
2+0 280
I
I.......~
\
L
....~.-
_•.-------------_.../..1 ~~'""'''-.
--~...~-..-.~-'-............-.."',[\./\_I........'"--,.I
""..l
o
94-
93 -
91
90
89
88
87
86
85 I I ...-I I I I I ·.-.........~--r
40 80 1 20 1 60 200
92
102
101 -
100 -
99
98 -
97
96
95
t=
:zo
t--:1:~
---l
W
W
~~
~
j
wn::
.,y._-"..
.--.....
Cl
I......
t--'
DISTAN CE FROM LEFT BAN K HEADPI N(FT)
Attachment Figure D-11.Cross sectional profile obtained at transect 2
of Island Side Channel.
I c-'"I f\r'"I r-")-M~.'--r L.....:......
......4~)~.__.J \.....-._
l "'-"",....-....(~=)//,-,.,'''T''-')7--,-1'\...._,.
GAGE NO:6J,2Sj
,---..,............--,I I I-·-r---r--··I..-·--r·~
120 160 200 240 280
/
----------~~--"'---.......~I..._---\/
,--.--.----.
4-0 80
,..,'-----._-..."'.......--',
__~n_.--*~.~,__~._._~..__•__'.~__R __••_••_.•••._.._.__M_...__._.•••__.M_~._._._.__.._----..-.-..--...-..-....--~-._.--,._-..J1O~\
1 04-
103
102 -
1 01 -
100
.'....-....~
99G~
"',....9flz
C)a-'..~l ...-
~96 ---~j 95 -._J
ll.J 94--
IJ.J>93
1-a'-'<I"_l ~.L.
0 w 9 '1IIl::::~
90N
S9 -
se
87 -
86
85
0
DISTANCE FROM LEFT BANK HE.A.DPIN(FT)
Attachment Figure 0-12.Cross sectional profile obtained at transect 3
of Island Side Channel.
I .1 J 1 J I J J J I ,)J J J ~I I
)1 )1 I )1 ]1 1 )1 J 1
I .-,l 'r I [-.C'1-~~).._l~\\,,'-1 J ..~~;i/l C..::··r····f'·"")/l.....<L.__
".
1 0 5 ._•....__.~__.'__.~~~~~.__~~~~__~~3 .:~~~__._.._.._-----'-"...._....__....-------.,
o
I......
W
.•..-......~
t
_*,r
L.o
~<t>W
--.J
W
lJ...J
"..~
f.=
4"_1
l.1J
n::::
104·-
'103 -
'102 -
101 -
100 ...
99 _.
9 fi -
97 _.
96 - \
95 ..•.,
94-'-"\
Q 3 _.~."-..________
..:I '-'~
92 -
91
90 -
89
88
--~
.J
(
~-')-..~---.../--...--"---------...--.-....---"-../....
87
86
85 -t-·-.....--r----------r-I .-I ----,--.--T----r·--.-·--,--........--,--·
o 4·0 80 120 1 60 200 24-0 280
DISTAH CE FPOM LEFT BAN K HEADPI N(FT')".,}
Attachment Figure D-13.Cross sectional profile obtained at transect 4
of Island Side Channel.
-r-I--)/1 /\'\,>-i-l~I e:.:l i\[\J [-.),~"/r-·.,.__!j-~\"....,t (__.~..,___..._.J l,.l ..,_,.'
10[')._____GAGE NO:6.3,2S8_..._..,._....._~~-~.~.__.ri_,..~_.__........_.._,._._.•_.
9El -
9~
93
9 '-'"--
91 -
90 _.
fi9
t::l
I
I-'
.po
...--.....
1--
fL..,-_....
z·
o
1--.,.:t
GJ
....J
W
w
.-.....-
~~
~_J
lLJ
a::::
10 il-
l O~5 -
1 O?--
I 01 -
100 -
99
:;,1\
95 -~"-
"'-",
.....,
"
....~......-'......
88
)
I,I
/
//
r-~'
/~------//\.""
'-~~-----'-----""--'~.--~-_.--
87
86
fi5 I I
[)
-.----r---.......I I I I I j---T--r----.-,--
40 80 1 20 160 200 240 28D
DISIAN CE FROtv1 LEFr BAN K HEADPI N(FT)
Attachment Figure 0-14.Cross sectional profile obtained at transect
4A of Island Side Channel.
J J J .!I J )J ~),J ,J J J ,J
~l ]}]))1 ])1 J 1 i
I ,~~l ,',I"1["-"r-"/r-·."'--.,./~'\")-,"/I'.
·,~_.c_).~_j 'I,......._.1 ""__..J ,.,l ,/
GA,C;E NO:(j,3.2S5
-~-r"I'--')r:::'-'I,;~,~__)
I.I r--',---T-----r----T I -.-----r---.---'---T---.---
40 80 120 160 200 240 2(30
DI ST.AN CE F POtvl LE FT BAN K HEAD PIN (FT)
105 -
104·_.
10:3 -
102 -
10'1 -
100
.,--.~99l-LL
98""_.'~'"z
0 97 -
1-:
96 -4-'--.-w 95 _._J
W 94·-w
93",.
~92:50
91 -I 1.i.Jf-'0::
90
01
89
88
87 -
86 -
Ei5 _.,
0
.--.\
"...,
.........._,
.,......
........,~.".,........,.....,.'-.
/)
/
,/
,,l
\...../'
Attachment Figure D-15.Cross sectional profile obtained at transect 5
of Island Side Channel.
I (-=.~I lj,[\·1 r-)"._.J ._..1 \".._"
c:/"-',
,.,.-.1 /(."",~.__,'
-,-r-"),'--',...,;:'~---'"
\..,j
C/'\I::;E H():63,2S6
-1 0 ~i -.------.--"----,.-.--.---------..--.-.-....----------.--------------.-.-,...'--'.-~--------,----._~-,.---.-,-,~.-'--,..----.-----,
104--
1 OJ --
102 ..
10 '1 -
100 --
9 L~
Jr-'
I
99 --
07 --~~j-.--_.,-----,.....,-.1'\...:.I '.~.
(,)c."_""'_'"~_J -."
~~~..~"........
-··~"-,......·........--......n.
...---.w.........I"~
."'''\/
\."'..../
98 --
94·-
89 -
91 -
90 -
93
-
-~.L
I-Ii
'.~
\-.
<:[>"
LJ.J
...J
W
IJ..I
....>
1--
-<:(
-.J
LJJ
a::::
'i='
1.1....
o
I......
0'\
I)
aa -
87 -
86 --
85 l I -----------r-----r--~T-_____r---,.-----.-I ~-r-T--.___---I--____r_--
4,0 80 1 20 -1 60 2:00 2+0 2ao
DISTA.N CE FROM LEFT BA.N K HEADPI N(FT"),,/
Attachment Figure 0-16.Cross sectional profile obtained at tl'ansect 6
of Island Side Channel.
j .1 J J I ,.1 I I j ,~I ~I ]J ~~
1 1 ]1 )1 »}1 1 I 1
1"\jl1 l \I f\\.1 (,<--T'-E~'-I\/1 \,i\/E"-'"c:=:·-r f.~b,f\\j I,,<~l'"f~~,~:1 -'jI.__....J __I,I I __~..)_M...~.I I.....
"GAGE NO:74·,4-S1
10 5 -----.-------.---.-..------..------..-------.-.--..-.---...-..-..-..-....--..---...-----
r----.-.~...._..---------
300 400
r---~-"----J
200
T
100
,A /
,,//\.,./
("I
I
/'
,/\//
\
,r/
,/
/
../..~/
,........."...,///"'...~--_..~....--"'-
104--
1 03 --
102
1 0'1 --
100 -
,.---...
99t
98.',-,'"
z
970
I-
96 --<i)~
95I..J.J
..J
W 9+-I..J.J
93 --~
f---q'-'.~vL0
ILl 91I
a::I-'
90
-.....l
89
sa
87 -
86
8 El
0
DISTANCE FROM LEFr BANK HEADPIN(FT)
Attachment Figure 0-17.Cross sectional profile obtained at transect 1
of Mainstem West Bank Side Channel.
,.1 .'\II"1 c-·'-f-[--.t·1\/Il~.,.'\.,..:=)~_I\/i \/1\/E-'-C::::,-r'E=)l~1\,.1 1 ,(•--_........-...'-<.-..r ...
GAGE NO:7 +.4S2
--r"F'·....'t--':,<~.L~
........
"/./
\/,,/,/
'-',/~\/\.--_....~--._--..-
"./....\.....----......~
105 -
11,)4 -
'103 -
102
1 01 -
1 00 -
~,-_.-...
t 99
~._..""98 -~::
C)97 -1-,,:(96:~~~~
IJJ 95 -~_J
LtJ
W
94
I~93
0
<f:'92
I
,.J
I-'llJ 91 "co u::
90
8°::J 'J'
88 -
87 -
86
85 -
0
---.·-·--r------r
100
I
,/A/.........•lt/"~"
/
200
I--·-.-----r~-'·-·~·---
300 400
DISTA.N C:E FR:OM LEFT BA.N K HEADPI t',I(FT)
Attachment Figure D-18.Cross sectional profile obtained at transect 2
of Mainstem West Bank Side Channel.
j .J J J ,•J t ~;~!J ],J J 1 I
1 ]j I -}
1\/1 i~".1 ["'\'.,..)S:~'--r'E~'I\/l
I
",',(E-"'"C·-·"'r f"'-")1\r"1~....\1'\"-...-......-<).'\....,,:• I _"__MJ _,..-,./...._\,"','t••••
C;.\CE t"l():74-,,"!-'35
)1
1",f-")'--",I'....-r,...,~I \\L.~_.l~...
1 1 1 l 1
.•.--....
t~
"..r
~-:,-._J
i=«.....,
W
._J
W
I.LJ'---'i=
Cl
·4'
I
_l
......LLJ
l.D D:::
1 0 ~:,-r-------.-.------------------------------------------.-""------..--...------------._._.-
'104-
1 0.3 --
102 --
'101 --
100
~)~~-
Q<:I..j'd.."
97 -(
Q -)1
o.j'6 -...,.
l)S ,..~-.//~.....-'\"/,,-//
94 '-.-.j
93 --
9 '"'L -
91 -
90
89 -
88 --
87
86
85 ·----.....-----r---I l-·--·---·-r-----·--··,·----·--·-r------·--
o 100 200 300 +00
DISTAN CE FPOM LEFT BAN K HEADPI N(FT)
Attachment Figure 0-19.Cross sectional profile obtained at transect
2A of Mainstem West Bank Side Channel.
t·""'1 /-\11··\··.j ::~-r'1=-r\11v.._~__.J \ "!1-"c·"r-1 " \~w'.__,
IJ ,I _........__....,JI E·.~)/\['\j 1/(".._.,).t~""\.....I."••
'-1'f'-'"'-.-";'~:.\._.~)
Cl....GE t·'·IO:7 +.+S.3
1 t)ti T~-----'-'---"-------'-------'----------------'---''<-----_..-'-""-----~,---,,---------,-,-----,---------,-,,---,----,
1 ()4·--
10::;
102 --
101 -
100
'f"99
1/
l
o
I
No
'L~~
.L-o
i=
.",.:[
2;
.-.1w
W
'~-.-
-~
i=
'<1"'._J
I.L.I
L1::
98 _.
97 --
96
95 --
94-
~)2i -
s~~~~--
91
90 -
89
fi8 --
8 ~l -
._./"---.
\
r-~--~--'"
/"
\
/•.../'-,"..',......
\/~\.~,.--'//'~
tlG-
e ~:i -1-----.....·-·---.-----,·
o 100
T----·..·-----.--·---------r··-----·-.------
200 .300 +00
DISTA.NCE FROtvl LEFT HANK HE.A.DPIN(FT)
Attachment Figure D-20.Cross sectional profile obtained at transect 3
of Mainstem West Bank Side Channel.
m 1 J ~I )J ),,,.~I .~I •I I
-]1 1 1 1 1 J ])1 -1 1 -J 1 }1 i
t\/l.A I r\·\j ~;-r [:1\/1
o
I
N
I-'
..-_.,~
~l.L
.~"-.....
L.
Co
~-="~:
GJ
.-J
W
W::;..
I-
:Jw
t:t:
1 OEl -
104---
103 -
102
101 -
lOa -'~
99
98
~~-\l,/'",'<
95 -//
94 -/
/'9 3 -"-----......-~j
92 ~
91
90 -
89 -
88 --
87
8 f:i -
.----j
\,',/[---c ..··-'r [-"l ".r"J ~./V\I -~'--..,L\".,
I}M_'__'-..-)~_...J l -J'I,...."~••.,
GAGE N():-,4·,+S6
-r'r--"-1 ,,\1-0:·:::..-....~)/-~\
85 ------r----r----,I.,--~----I---·_·---'·-r-------
o 100 200 300 400
DISTA~·l CE FROM LEFT BAN K HEADPI N(FT)
Attachment Figure 0-21.Cross sectional profile obtained at transect
3A of Mainstem West Bank Side Channel.
r 1 1'li]·--'·-l-E··-t 1\10 .....\'-')-\,/
V l \"."._,.,.__.v \1\l c-C::),'-1-.v L.-._E:>1\[······11·'...-_)ll.-··,~\............-r'[:-;?--z:E~~;I ...'_..J_..
GAC;E NO:7+.+S7
1 0 5 ----..--.-----.----.--'--------...--...--.---..----------,---------.-..,--..-..-.,,---..---.-......-.---.
104,-
1 03 -
9 'l"'".Q ;;,-,'-".'''-,.,I
;~-\ J
94-\,
'E'
'-'z
()
i=q'
.:;::
LLl
_J
LLJ
llJ::>
Cl
l-
I
'<l~
N
...J
N LLla:.::
1 02 -
1 01 -
100 -
99 .-
98 _D
93
Q'~'.....L~
91
90 -
89 -
8tl
87
I
100
86
85 I I I "
o
~-·--l----..--I-..----..'..'-..I-----·__·_--
200 300 400
DISTANCE FF~Or\ll LEf'T BANK HEADPIN(FT)
Attachment Figure 0-22.Cross sectional profile obtained at transect
38 of Mainstem West Bank Side Channel.
J I J J J I •.1 )I j j J I .1 J I ]J
1 0)J )l 1 J -~1 1 »}]J
t"/ll~"If"''''·,·,.]c::::"'-'1=-f\,/1\I I,'-._}__._I
"'\((.--C"-··-'1 00 '.\ I '_...---"v v'_.",_'-._,I E~"i'f"j I "~~.,I \"0\/(
._-).;--_.....,.....\'"
....or I"~>/1"\...:...·-1-·
Gf\GE NO:74-,+S+
l'0 f:)'-r-.--.-.~-..-o.-o-~-..,-.-------.--..-.-.--.--.-----------..----.-..---..----.----_-_..-_..-0 ·"_'·'_-.-••_,
104-
10.3
f-....-..·-..-·--·-,-~-·-·--T-·--..---
.300 400
95
96 ...
97 ...
94-
93 -
98
92
91
90 ,.
89
88
87
86
65 -r--.........----,-------r-----------r-
o 100 200
,
/
11
'7 !---,
10 1 1 .I-......-._...._//
100 _"'-I'/99 -"'-~.•/\I~~~.l·--~~-·"""'·
~o--../,·
--/'--
---~-~-~--"\,...~......_..".~.ri-~
"'...--~..
1-"LL
"--'"
Z
0
f-·-:C
:~"::I:'
llJ_1
lLJ
W
.~
......=-
i=
Cl
<1""
I
._1
N L.1I
w [t~
DISTANCE FROM LEFT BANK HEADPIN(FT)
Attachment Figure D-23.Cross sectional profile obtained at transect 4
of Mainstem West Bank Side Channel.
..............,•.~......~._~_w ._._..~....._,....,....,.__~.~~.....~,.........-_~_w · ····_,--..--..~.......-:..,t...L ......l
(-~()C)c:'F~'"')C=;//C';
\......J .~_..'.~_~~,..._w)._......-..--i"...,...-'
CAGE NO:7 +,f352
-r-'f-~(-")-'\\L_
.-...........-"LLL~
22'1 ,-
2 '16
21 El
217
:218
''>7(\rL~,_-'--"\
'\
\
\
\.-~~\~
~/"'-...,--~----....,~~,~,'-"'--.,,'-------'--,.--...r '---.,~,_J
:2 '19
....---....
I-
LL,
'~,......."
:Z:
C'
I-:4:,::>
W
-J
W
ILlCl'-,I ,-0'
N a:-P>I-
214 -
21 ~)
2 1 2 -t-I I I I I -----.-.......---I I ---r I ,.....-,'r----r--r--,r---
o 20 4·0 60 80 100 '120 140 160 180 200
DIST.ANCE FROM LEFT BANK HEADPIN(FT)
Attachment Figure 0-24.Cross sectional profile obtained at transect 2
of Goose 2 Side Channel.
J ),l t I ,I B t J ,)»I J
I J })1 1 J )1 I }»-1 I I J )
(-,..\IF:')(-...l I l i\I=~:'
",.~...,I \,•·...._•..1 '.._~.'~_l ......
GA.C;[
t::.::'·l/(.-.
,,_.J /''-.--I'
NC':75.3S1
-'r""f~)..,
..]
1 oei -
'I Oll---
103 --
1 OL~-
'I 01
'100 _.
-"99 -t~~
"..-/'9El -.Z
0 0·'/
i="/
.:r.,96.~::~
IJJ 95 --lI.u 94·w 9:':~>
Cl i=92I4'
N _1
U'1 LLJ Sq -I:t::
90
89
88
87
86
85 -.
0
\ I...._.,~",)
'-.'~"/'.,
"'-'"'-'.,J'
""""--....~-------.___._.....n •....-----·.......
·----l--"-·---l··---"---r···--"~·"--r---·__r_--'--I---·~-----T---·--r-------,----r-·..---"
40 aD 120 160 200 240 ?130
DISTAI'··j CE FROM LEFT BAN K HE:ADPI N(FT)
Attachment Figure 0-25.Cross sectional profile obtained at transect 1
of Circular Side Channel.
(-'"I [~)(_....l I l i\F:)C~-"/'(-...
'.__.f I \."",-~~"t ..,•..."..'__.l-.......\.."--"'.)i ....~,.,J'
"I?ACE NO:75.:5::;2
--1-r=::)
'0"..,
,--~
...j'
.~.-
1(hJ.)--.-----~_-_.---------_._-----------------------------------.----...---.--------------
1 04·-
103 -
102 -
'1 01
100 -
CJ
I
N
(J)
..~-....
1-·
Ii..-:z
(~)
1-·,..f
i~~:1__..I
I.J..I
I.lJ:::>
~...J
I..LI
Ct:::
99 -
98
97 .-
96
95
94
9:3 -
92
91 -
90
e9 -
ee -
87
86
85
[)
J
f
I_~-~----~,I-----~"-....,..-..J'
.....-..-__.--....~'-.r...-...'~,..--
-T----r----.---I---r~-r_--_r_--·-I---T---T---T---I---r-----
4-0 ao 1 20 1 60 :2:00 24-0 2i'30
DISTANCE FROM LEFT HANK HEADPIN(FT)
Attachment Figure 0-26.Cross sectional profile obtained at transect 2
of Circular Side Channel.
J !I ],J J ,J J 1 ,)I ,,t 1 )
1 )1 ))1 )1 ]'I )1 }1--1 1
('-',IF"",.'--'I J I I,r---',''''.,~""."r.;'(.L.,\~"'\.t t ......,/I',~._•.'"....'•..•../"o __J _.__.I~.....~.._,)/".~_../
"
CA.I~;E HO:75.:SS6
-l'"f'-',,,-'"I"~~.,.../t~
""L._}\
1·0 [).-.-~-~-'-----.---_._-.-,-'--'".---,---.-,,-.-,--.-----.-.-,-.-~-_......-._-_.__..._.~-".....-,---.......-..,---.-..'-"'-"'------'-"-'''',
1 04 -
1 0 .....;-
1 02 ..
101 -
'100 -
~....--....
t
",-...'"
z,-'-,'
1-'.<:[',:::,.:
w_.J
W
Lll
"~
1--
0
<f
I
,_J
N
w
........0:::
99 --
98 -,.,\
97
96 -
9t"l -
94
9 7...J
92
91 -
90
89
88
87 -
86
'\,r-"~
\./.f--/
I~_~__~__~;,1
-~--".,............~l
"""J"-/'"
"/'".../
85 -
o
--.---r-'---r--.......----r---y--,--r-'--·.------I""---,--,----..-
40 80 1 20 1 60 200 24-0 2130
DI'STAI\ICE FPOM LEFT BA.NK HE,A,DPIH(FT)
Attachment Figure 0-27.Cross sectional profile obtained at transect
2A of Circular Side Channel.
(-...I F)(''''\I I l /\[::'
\__._,1 \\',..._~,1 ...........'__••,1...-..:,,\I '_.
c:-"l l-..·····
,.-.::)/I,.
Jl .~-~..
-1-'"f-)."'~\
.'~,
I·,...~.F'
C;A,GE ~.j():75.,Y::';,3
~~;:~~r.---~~~-..-----------.-----~~-.-,.------.~-""'----..--~..'-,-.,_.-,-"---..--"----'"-'--.
1 02i ..
'102 ..
10'1 ..
100 ..
-',
1
_C\"
_L ~••!)...,
o
I
N
00
,
z
C)
i=:
,<~~:."~J_J
LLJ
liJ:::".
1---
.<]"
._J
LLJ
a~
9 f:.",l j "'\.a-'.......l
96 -
95 -
94 _.
9 7~J .
92 ..
91 ..
90 -
Ei9 ..
\\..--......_......~u....,.....J-~----.~_
.....~...-----I~-'-~---/
............,I
l
...........---""...."
/
II
J!
./'
88
87 ..
86 ..
8 f)-r----,·--T---I---I--.------·..----·r-·--,--~'-I--T----r ..---'--I---r--
o 40 eo 120 1 60 200 24-0 2i30
DIST.ANCE FF~Otv1 LEF1"HANK HE:ADPIN(FT)
Attachment Figure 0-28.Cross sectional profile obtained at transect 3
of Circular Side Channel.
.J J t ~)J 1 I ».J •a J ,J !,.J'"
I )1 »J i }1 1 1 1 1 1 1
"---'"I C·"·-·'...--·..···l I L 1\f~"('-",./,.'_.C_-'1"<"..j j._/--\.'\'....~~)//'''.j'
."
-\-f").-'1..~\../....-
--r-'-~-""""'-'------'--'--"""""-......~~-~-----------~.__·__.w._.·_._T -....-........-.-...._.._...-,------.._._.,,-.....-.._~...-._---.-.-.-----.-.'"-..__...-,"....."-.----'-------.-".-""'-'105
1 04 -
1 0;:;-
1 02 -
1 [11 -
100 -
GA.GE NO:75.;5S+
'-I-lL 99 -
,I
Il
/
/
f'..i--'---_/
,}
l
---"
/'
/'
-",......·-·-----_n_.nr-""~-~---_.-/
-,~......,..~....
"'~~'-
s~c~_.
91 -
90 -
fi9
ea _.
87
86 _.
8 ~j -r------,----,-,-----,·--·,'--'--·j--·--r----'i------r··----T---·-T----r-··--·---··i--··-r -"--
o 40 80 120 160 200 2+0 280
97 -
'.
('E'":~t)_.\\
~t.J -
94-I
93 - \
92 ,--------.J>......
~,
.._.~
~~:::....
~
_..1
liJ
0:::
I-:;:
L.lJ
_.1
LLJ
liJ:::>
()
o
I
N
<.0
DISTANC:E FROlv1 LEFT BA.NK HEA.DPIN(FT)
Attachment Figure 0-29.Cross sectional profile obtained at transect 4
of Circular Side Channel.
'._".I F--'",....\I I L /'.F'·"""('"I d,·~,_~_..)/\.r...._.....',~_,'.__l ~.'\~:::~;,/,/'"C.:--·r r·-)r~-~<..~~.)
(;/\I;E N ():7 5 .:s S 5
10 5 -,------.--.-___.._--.-._.__..-_._._~-_._-.._._._._-_._--._._--..-----'--~._.-.-.-..-.-._--__~..-..-----..--..--,
1 O'~--
10':.1 -
.,'-"'",
1--
I.L
102-
101 -
100 ..
99 ..
.~._.,.,
..;:.:-gEl -
97 ..
.J
'\/
\
(
.-,,..~_..,,./
//'_'.I
/.,I'.",/".
\
./..-----_/\../,.-'.'"
A ,/,J
,/,,/\~,/'
.....,...,./--.
........
..........;..
\./1
\/
92 -
96 -
68 -
917 ..u "
fi6
8 5 T----r-----,----r----.----r---l--.----,--·-I--.........---l-----r--·------r----.-'~-
o 4-0 80 12:0 160 200 2+0 2i30
89
95
94--
91
90
.9:)
o
I-.0<:(
~1
.-1
LLJ
LLl
'~....~~
I-~''4:.-1
W
IJ:::
o
I
Wo
DISTANC:E FROM LEFT BANK HEADPIN(FT)
Attachment Figure 0-30.Cross sectional profile obtained at transect 5
of Circular Side Channel.
),J ],1 .1 )1 J I ),J t J J I J
}))J~-)1 })]1 I ))}l 1
('--,I'.l I r'"j .'\.:---',,/"'~---".~==)./L2\__".'\'"/_\..=:)/l 1\__/
l
(;/\(':;E NO:79.B~:';1
T-F~::-'l
-1-0 tl "-r---------------.---------------------..------..---..----------------------------------...--.--_..---------------------_..---------.---"------'--'---.------,
o
I
W.......
.,..-.....
t~
"'--/
"7
o
1--
~~_J
l!J
1.l..I......
.-'~-=..Q
._1
LLJ
IYo
1 04--
10;:;--
102 --
1 [)1 --
100 -
99
98 -
97 -
96 --
95 --
94-
9~;
92
91
90
89
8E1
87
86 --
85 -.
o
..~......~...-\/
'\-j'/r-"-----------_.-
/"/,.............----...---~....,----
.................-........,..----.-...--
-,---r--.----l-'-'---,----,----r-T---'--T---'---r--.--r---r---r---r--
20 40 GO 80 100 12Cl 140 160 180 200
DIST.A.NI.-:::E FROlvl LEFT BANI<HE.A.DPIN(FT)
Attachment Figure 0-31.Cross sectional profile obtained at transect 1
of Sauna Side Channel.
·~'--'...
t',...._.,•..
~,.
L,..
(:=,./'"l I I'·····j /\(::~//....-.'I .....~'"1••_1 '."'_0,1 \.0'',1 \'•._...i /\,.......
7~).8~):2
1 O~)-~-----~--_._
1 IJ4-_.
1 0:5 -
102 _.
10 '1 -
100 -
99 -
98 -
"-1-f-::){-)\,L.::.._
o
I
W
N
o
1--
<·f
GJ
._J
lJJ
llJ
::...~
i=,Q'
.-J
W
11:::
~)7
96 -
95 -
94-
93
92 -
9 '1
90
8~)
J
///
,/
"/
.\-~-----~.-
..r
\./\/
.'-,........__._~_._-----~...
88
87
86 -
e 5 -r---"'--T---r--r-r--,--,-',--,--,-,-,-'I ,--r-,--,-r--,'-
o 20 4-0 60 80 100 120 14-0 160 180 200
DISTANCE FROM LEFT BANK HE.ADPIN(FT)t..•
Attachment Figure 0-32.Cross sectional profile obtained at transect 2
of Sauna Side Channel.
~!J j "...·.1 )5 }}I J I :I
1 --l -1 )~]J ))}1 1 )
C-",,,",l I f"J ''\".~..IL'~t I \....,l,t-~,,._).,,....~.,:::~;./..••/'(..1
-'r--[--'"-7f":::'.-.)
1 rl {'I Gi,f:;F NO-"'q n ':';{...._..-_~.....o-_~~_._~.~~~~~__"':~~_~~::_~~.:_::~~_...__~__...~-......_.__¥_.~~__
90 -
91
89
88
1 ()·1--
10;:;-
10;::
1 0'1 -
100
0(,~_........,~
98 -
°7 -I
--.-
[),,\-.---.,---_.~~~-'\-_.._----_.-._~_.
-,\...---'-'-'-7 __9J \r
(,';-'_.\/~."-
\/\\/
'-...'\...../..
''\..,,.//'-..•._----
."'~"~1-.
I.L.•..--.-...
2:
CJ
i=:<~-".-....
l.Ll_.J
W
W'-........'~
f-
a
<t
I
.-1
w
1.iJ
w rL:
87
o
86 -
8 5 I I I ...,--r--r---r---r-.--r-,-r--r-T--r--'--'--.--'---T---
20 40 60 801001 :20 1 40 160 1 eo Lor)
DIST.AN C:E FROlvl LEFl'B,I;N K HE.ADPI N(FT)
Attachment Figure 0-33.Cross sectional profile obtained at transect 3
of Sauna,Side Channel.
C-"P.I I r'"J f\"__~I '"I..L..--.'..-..l"'_)i \'c~~'.;-\::=;",///(~':--'r--r"-",'~I .•'~''';;:'I~-
I I '--r-r--'T--r-.-'r-r-',I I'-'--'------r----r-"--T---
20 40 60 80 100 1 :20 'I +0 160 1 ao zell)
DISTANC:E FROM LEn B/\NK HE.ADPII'·,!(FT"\-'-~.~
10t:l -
104-
103 -
102 -
1 Cl '1 -
1 00 1·~
...-.•~
99t
'-'98L
0 97
I-:
96.:~:,
'~-
,.~w 95_Iw 9+w
93::-;".
I-:92,<1
_1
91
0 wIwa:::
90
-Po
89
88 -
87
86
85
0
\
\r~-
\.I
\/\./
GAGE NO:19.a5+
/""~'//''''--'''---------v'''/'/r
",~","'_M_"'R'-
....J~,.,.
/---~
Attachment Figure 0-34.Cross sectional profile obtained at transect 4
of Sauna Side Channel.
J -~t )I J J ~,J I ,J J •j ~I
1 1 -1 }I 1 J )-]1 }-).}
,.-'"I J ,"-',I ,...E-'fJ C"/C·..····,
.::_'),......~.I"'K_......-'\...;....~~.-.--,\.•~:),./'..._......,
(.;i\GE HO:S+.5SZ
'T -1-::)(')
''',.£.~~
<"')-'re'
L I.)-
274--
2-7~;)-
2 7 ':',L.
271
.........~....
I-270
IL
".-/-.269..::..
0
1-268.•.;f.-........~....w 267_Jw
Cl I.tJ 266
I :=Jw
()1 Il::265I-
264-
263
262 -
261
260
0
.".._K_~~..._'_.~~~.U.~,__..._.....__..__'·_...........~.."._u_~.._.__.~..~.__.__.H_~.......~~~~_~.__...w.._.~_~~_._._•..,
I
)
"~/'I,I"~-r-'~.\/'
\II"-y
r-J--r-.-.--.I I .----.--,I I 1--.....--,---,-_·
20 40 60 80 100120140 160 lao 200
DISTAN CE FROM LEFT BAN K HEADPI N(FT)
Attachment Figure 0-35.Cross sectional profile obtained at transect 2
of Sucker Side Channel.
,'--..,I J (~·~'·I ...'E-F-~)C-'"''./""''''''~:),_.'•.j'<".,'=--,<.~~)/.....c.."
"GAC;E NO:a4-.5S5
-'1'"R·,,·r::..::\~..."",-I}
-------_..---....---_.._----_.--~--~-~-----'..•_---..--",---------------_.._-~---------_._--~----'----"'-----:27 f.j --1-----
~271.1--
r27~3 -
:Z72·
271 -
..;=,7 7 0-
1.1..•.,-
·'~.f·
z 269
o
I
W
0"1
C)
j:=.
~:
.~.
.-....
1l.J
-J
lJ...1
1l.J
=}
l1::
I-
268 -
:267
266 -
:2 6~::'
'264-
:2 E:':t3
:262 .
:2 61 -
.......,-.....-.--------.._.....----....---........~.........
!
/._~.~,.._,._/"J
~-'''~-/____--..J-----_........"'.........-
:z (;0 ---,--.......-,/.........--'--r-----,--.--·..--t-·-.--,-.....--r--,-........-----'---r-T--
o 20 40 60 eo 100 1:20 140 160 leo 200
DI ST.AN CE FROM LE FT B./\N K H E.AD PIN (FT)
Attachment Figure D-36.Cross sectional profile obtained at transect 5
of Sucker Side Channel.
~J ,I l 1 ~1 )•J J J l 1
1 1 }I 1 ]1 }!'D J 1 )-l
E--)E"",'....E-'f-')'J --L\\/...,"....-._1,\_..."CO",1\h '1
....)/--'-\"'./(:~.,L (-)l ,I C'..·lo.j
.......)....'-.....,.,_".....j I 'TF'~::'"1
93 -
a·~'__..:.~L
,!
t)(:l It............
98 .-
97 -
96.:''\)1\9 s "'-"
94---'''\..
\.)
".....-._-~-_._...__/
91
90
89 --
88
87 -
86 -
85 -r..............,.I I -.----r----.---r---r--r-I I r--r--r---r----.·-..'--r-'--r--T'--
o 20 'to 60 ao 100 1201 +0 160 1 no 200
DI STAN CE F ROt.....,LE FT BAN K HEAD PIN (FT)
1 c',t'C/~FE"r'I"")q --.....
.I.)--..r-..-.-.---....----~--.-~"',7,."'-:'Jtj',..'l~:;11CH---~,-~--_.-.----.-...---..-.----_._---.-
1 (L~5 -
102 -
1 01 --
1 00 '-
,•.-......
l-
lL
~..._I'
Z
()
I-.<t
~,
~I
_J
W
til
.......r>
0 ~I ._1w
W-....,J
0:::
Attachment Figure D-37.Cross sectional profile obtained at transect 1
of Beaver Dam Slough.
E'·E-fI,'"(E c\[-..,',r 1 {'-"I [---,1-,"---'.L J ,0'I"J r J E-l T F·""/1-5 __.l-:\\/I ""':)/\\/~::).j ='-~._.,.I -I /j.."\'"...\-:_--,,""'::,.!-t-
G/\I;E r···Jo:a6 ..1S4-
95 -
Qt?~6..
c,q _j"\...................
98 -'\
97 .\'\
\.
\"
,..•.,.".."
"-...,./
\/
\./
\\/
."-...".,.....---89 -
90
93
91 -
90
9+
10 ei-----.--·--'-----.---.-----.------.-----..---·..--·.---..--...------..-...-.............-.-~--.-.-.---.--.---..----
'104--
103 -
102 -
'1 1)'1 -
100 _.
L~o
1--:.<t.'::>
i.Ll_J
W
W......,
./
I-
'<1""
--]
Wu::
.......-..,..E"
Cl
I
Wco
8a
87
86
85
I)
I--r--I-r-T-~___.___.--r-.---...-I·I--r·-T-.____._______r·--T----
20 40 60 80 100 120 14-0 '160 lao 2:00
DI'STAH CE FPOM L.EFT BAN K HEA.DPI N(FT)
Attachment Fi gure 0-38.Cross sectional profile obtained at transect 4
of Beaver Dam Side Channel.
,J t I I .1 I ~I I J I ,J •oJ •J i ~l
]1 I 1 j --1 J J I ]1 1 1
.-.---------r-.--..-~---·-·---r··--·-·----·
200 300 400
1 '1 0 ~
109
loa -
107 -
106
105 -
.i"----.~
1 04--l~
···...-or 103.Z
C~J 102 -f-
101.<{
f\:~~
liJ 100.-.J
LLJ 99 -
ILl
98'''-,..::::::..
1-
97.<j"
.-.:1
96
0
IJJI
Il:~w
gei<.0
,.....
9+
S~3
92
91
gO -.
0
c·-·I J I"J C'-·r-"-1"-C"-,/...-"..,:::)'_.,\'".,-.)C.._~_).../c....·
I
C';:,A.GE NO:86 ,9~30
"")l ~-_._-------~._~_._---,-------~...-/
_......\//---
.//
I ~,.."~_"""w .../
\/
,-------',
100
1-f~?(.._)
......._.
r-J
j<--_/
...r··..-"
DIST/\NCE FROM LEFr BA.NK HEADPIN(FT)
Attachment Figure D-39.Cross sectional profile obtained at transect 0
of Sunset Side Channel.
C=:I I [\\.)C~[="'T-(::-,~,//("':
......__~.J '-._...~_._•__._).,'...._~.'
"
G....\GE NO:eEl,9~;'1
-r F~·~I
r-.-.----r-----r--..-.---T--.---------r------..----.T-~----·T·--·-_.--
100 200 300 ·~OO
DISTAN CE FROM LEFT BAN K HEADPI N(FT)
110 -
109 _.
1 OEi -
107 -
'106 -
1 05 ....~,
'104 -t:
.~_..,"'10::;-2:
()102i=::
101 -<1..
~100--I
W Cl (.1 -.........w
98:;..
~97 -0 ._.1
96 -I I..J..J.~L1::
95 -
0
94
9.3 -
92
91
90
0
'\/J\-~'\~-/-
""..-r,_/
\.....-~_./'""..-'~~.--
"'>",....,_._-_.~/'I..-_//..~.-.--
\.""'-
.//.~r···~·,J·
_-"••,J/
Attachment Figure 0-40.Cross sectional profile obtained at transect 1
of Sunset Side Channel.
~J J )J I 1 I J ]••I J l J I •l
1 J J t 1 i t 1 j J )I J 1
C-"l 'I"J (-'-"1--"1-"'.".,,/"-~""'~\"-...."".I (.......,.)....../..........J .___...-J /\.......
I
-"r r-·::)(~'t",
\L-..
t~AGE NO:86.9S 2
I --r---.-----l----.-----.---------,--·-----··----r--·---
100 200 300 400
DISTA.N CE FROM LEFT BA.N I<HEADPI H(FT)
.I~/----.."--~...,.,./---..-/
-~~_oJ-,~-----.//-~----..M ...__...._.._.......-~-,-----
1'10
109
lOa
107
106
1 oe)
..,~~..
104--1--
Ii".__r 103Z
()102
I-:10'1 --4.-.....~
.~
100LJJ
.-.J
W 99w
9E1:::>
i=97-<f'-.J
96
0 wI
Il:-P
9flf-'
94-
93
92
91
90
0
Attachment Figure 0-41.Cross sectiona1 profile obtained at transect 2
of Sunset Side Channe1.
C:'l I r····"I C::1:':'·---1·",::::-::,..../ ( .......~.J J ",~~_,_)__,.~.,,_},_"I _~,.
I
G.A,CE NC':e6,9::<5
-"r "L:.)'"7,I ......."-_....'
(
"\
\
\v.'\\.____--.--.---."."'_'.~_'_'-'"
-~..•---_.__._.....\/
\.J\",,/
1 '1()_.
109 -
1 OEl -
107 -
106 -
105 -
,0·--·",104--1---
LL
103 -
-'.__/F'
L.
C)102 -~
1 01,..~.
:~-:"
100LLJ_J
Ld 99
W
9t;~:
1-
9 7·<:f .,_J
96
0 wI
0:::+:>
9~,-N
94 -
93
92
91
90
0
---I---·----r-·~--·~'
100
·..........-·---r-------.------T·--·--·--··-·
200 300 400
DISTAN CE FROM LEFT BAN K HEADPI N(FT)
Attachment Figure 0-42.Cross sectional profile obtained at transect 3
of Sunset Side channel .
.~•,1 i ••I 1 t J J I •}1 1 J .,J
J i J }]]•J J 1 ]
coo.I I r'"I c·-··1---'''1 -c··..···./i-....
,-':).,j ,:):::..:)/'/'\----
C;:..ll,.GE t···l():b(j .9S4
'"1'''''f~)/1.._-.;;\L··t~·
110 -
109
lOB -
107 -
106
10f:i
....-.....
'104-1--
lL
10.5,~.-,..'
-'--
1020
1-
'10'1 -..q:
.'-,
f:1.1 100 -_J
ll1 99
LLl
98~>
1--
97..1:
--J
96
Cl
wI
.t:>~
95
w
94--
93
92
91
90
0
/
,..--..........,......-...,--~-_.~',~-,~~//~-------~,-'"','
-----"1-----~-T---"--I---..-'T------"r·--~-..----I-·----___._--.--------.-
100 200 300 400
DISTA.N CE FROM LEFT BAN K HEADPI N(FT)
Attachment Figure 0-43.Cross sectional profile obtained at transect 4
of Sunset Side Channel.
('''''''l J [,..,IC'E..--·l ........._--.\,~-"~~.._).......,"..,--)........I~:;/i//(~::....r"r""")r::'""'r\""_)
I.;:A.GE l'~0:Ei6,9 S e)
ii
")",I............
"'"t''-~/,J
"_---'
~)6
95
94
93
92
91
90
0
·--.-----T--..--T-~-·--.----~-r--~-I-----._-·--·-
100 200 300 400
DISTAN C:E FROM LEFT BAN K HEADPI N(FT)
1OOj-.\Cl (j ...
...".....I
gEl V,,\
9 7 \.......,"-
.._~....................
1 1 LJ 'T"---~-_.._--.---.......---...----------..-------.--.---~...---------..-----..--..-.---....-.----..--.-
1 09 --
1 oe -
107 -
1 0'6 --
105 -
104 ..
'10':')-·
102 -
'1 01 --
,.-....
I-tL.
"O_A.r
:z:,-,-"'1,-,
~·r
J~::~
1.1.1
._.1
1.1.1
tLl:>
1-.,q
0 -:lIl.1J.j:::>
.j:::>n:::
Attachment Figure D-44.Cross sectional profile obtained at transect 5
of Sunset Side Channel.
1 J !,J l I 4 -J J 1 J J J J J ,.
-..J )J 1 ]}l J -~J I 1
'"r'''f-····...~..-"t.)~..-,._)(:::I )r"\1c=:·(=-'r .;::--..(i"'~"~...-,I "."'......_!__.~/l .l'__J
1'1 0 _.~..___G.A.CE NO:86.9 S (')
_~r ___.._••__;•."M __•M~~__~~~_.........-.-.-.__~_M ••~~__r __~~~_~_~,.~~
I
-T-·----·-.--·--~·-----·_.---·-·--I·-·--·--·-..-r------·--..
100 200 300 +00
DISTAN CE FPOM LEF1'B/\N K HE.A.DPI H(FT)
[)
91
90 I .
109 _.
lOS -
'1 07'-
106
105 -
104-
'1 0.3
102 -
'101 -
'100 /\
99 -'",
9f1 -,.,.......
'>.
97 -'-."~C''-,Sl~.J -"
a Co "\,Ifv.....J .......
'\
94-\'.
'....
9 _'"~,
9
"10 ~,.•.,II
'L~-....-l,I
..\.../
/
......M...M~
.,r .••-....
t
"'_M-'"
~z
D
1-«."'".--
LLJ
..J
I.LJ
LLJ
~:P
f-
0 ~I
.f::>W
(Jl a:.:
Attachment Figure 0-45.Cross sectional profile obtained at transect 6
of Sunset Side Channel.
C-'-I I t',I F")I c~E-'::).'-..~,'..~,~\~--:)~_..
GAGE
f-......•.....-'.......
-''''l (
,,_),/0"...,./
NO:87,OS4
-r~F~L~
;'
/l~.--_.-....
,/
--.~"..
~....r.~""~~
~_.....~
"'./~
~~/~/
""'--......--.",.
-·.......__.....'--......,.....~~n-.·
\
\
.._---------------.....-----
~--
OCl -v"
98
97 -
96
95
94-
11 (]--.---~-,----.--.--,----...-,--,-----,,-----~-...-----,,-'------~.----~--,,--------------,--
·109 ,...
lOB
107 -
106 -
lOti
1 0.:1-
103
'1 OL~
10'1
100 ...
"'l::;'~.::::...
1-
4'--.;
W
..J
W
l1J
'~....r·
i=
4,-3
wu::
"~t"
E"
o
I
+::>
Q)
~~~3
92 ...
o
91
90 .,,--------,---_._--,---
100 200
"...-I-~---"~·"l------T~-----·-...
300 400
DISTANCE FF:OM LEFT BANK HEl~DPIN(FT)
Attachment Figure 0-46.Cross sectional profile obtained at transect 4
of Sunrise Side Channel.
I ,1 a ~t s ,1 I I )!~!J !!,J
1 i ~l )J -i l j 1 1 I
E-~I r:::;)C~:LJ__,'...I I
C-"F--:E'-E·:-1.(
j ._.r '.C..~"L (-)l I (r.",1·,-1
-_.)_.,._--.j "'--/.
-'f"F-';'.'-').~-"\,L .._
(~,I\GE NO:,aa,+S 2
___..._H_~_.__H_~.M ~__~~--.~__~-,
--~.__.-_.-_...-..._._,_.......-29 E).....----.~--.-.------.---.-----.----
29'l -
\)
\~,I\/\/~/./'---~--'---.-----.._-------"-
293 --
292 -
29'1 -
290 ..
289
288
287 -
286
285
284·-
283 -
282
281 -
280
279
27El
277 -
276
275 -t----,.-----r-·-·.---j--.--,-.-.-................-.............,---T--,--r---,--T---·-'·-,---,-
o 20 40 60 80 100'120 '1+0 160 1ao 200
:zo;:::
"et::>w
.-J
W
W
:::J
a:::
1--
..........~...
'1='LL
CJ
I
+:a
-....J
DISTANC:E FROM LEF--r BANK HEADPII···J(FT)
Attachment Figure 0-47.Cross sectional profile obtained at transect 2
of Birch Creek Slough.
E-~·~II ~~?(~~::L_.j (..-:F';~'L:::-E':~I.<':~~L (-)l I c~'I--J
.',••>I __.L_--_t._J_-_...-'_OJ I
GACE NO:86 .4-S 1
-'r""f~~~?{=:;
...·l_.~."
:2~)EJ _4
294---
293 --
?qr,__._.....L
20'1 -
290 ~
289 -.....-....
I--288I..L
''._-''''
Z 287 -,-)
.•_-l
286~285 -....~~
IiI
---l 284-w
w 283 -Cl
1 .........
282 -._M,J+:>u:::00 f--281
280
:Z7S~
278 -
:277 -
:276
275 -r---,---r
[)20
J
/}
I'
/..-._--,.//-----------....,_.-./"~~..-./.-
'--T-~--I-·--....---.-r--r--T-·I I -I I ---T--'j'""--r
40 60 80 1 00 120 1 +0 160 1 eo zoo
DISTANCE FROM LEFT BANK HEADPIN(FT)
Attachment Figure 0-48.Cross sectional profile obtained at transect 6
of Birch Creek Slough.
~!!~I I J I J !J J
)!1 J 1 J 1 j -J 1
"'r-F')1\1'-"F-)E'-F"~"r,-t~~J ._'~\I \.._'.
....-...F-"~E'-E'~,/I".;'..-,,,\"-.-.1 \_ _....~;.....//C~:::"1-1"-'")'1--"';:'\
10 Ei --r-'------GA.GE NO:91,60::;:;?'1 0 4·--.'-----'-..------.-.-.--'-.--.--..-~~-.-.-.-..----.--------.-----.-,---,
1 CL3 -
___--I'"I,I",v
"~.J\~-"~\,/./
"'-''---/
......."',/
'-.~...........__~..;1
...............--/,,-..
102 -
101 -
100 -
~..-...
0(1I~"',J ....'
'\............98 -z
()a -;r _....,,
1-:
9f.i«'--'.~
95W._J
LLI 94-
IJJ
93:>.
i=92-<t0_J
91
I w-Po
Ct:
90 -
LO
8S1 -
88 -
87
86 -
85 -'.
0
--.-----,-_._.
100
·--~---r-·-·---I-------I------
200 300 400
DISTANCE FROM LEFT BANK HEADPIN(FT)
Attachment Figure 0-49.Cross sectional profile obtained at transect 1
of Trapper Creek Side Channel.
-T-F;',t.1---)F--"E-F......'~..,[.:)E-f---'"~c,./'~'I,~_.~.)._._.'\':.I ~_..J I ....:,..~~~_".(<'....
C-"/ (.._-..,
-'-,/'...__J .I _./~
/-T I=:)/~)
......~!:.-:_...
--_._._.,._._._-_.--,------.
100 200
105 -
104-
103 -
102 -
1 01 -
100 -
"..--.....
99 -t...~.~...9B -._-~...
.ll:-'
()97
1-'
96·,·t
~95 -_J
I.JJ 94-
I..LJ
93~:>
i=924.
0 .-.1
91 -I W
U1 11::
90
a
89
8a
87 -
86
85
0
...........".I--~--~--'-----..,..-....----·...........
........-_/--..........
GAGE NO:91 ,6~;:~5
.J
,/
/,./.,I
,I"'-..,I
-"~'"I
-"'--.~/
'--'-'~"-'_.,_~_..~~-./..r----//•..
r--~----I-_·---·----T-··------
300 400
DISTAN CE FROM LEFT BAN K HEADPI N(FT')'.,
Attachment Figure 0-50.Cross sectional profile obtained at transect 2
of Trapper Creek Side Channel.
.~I I ~J ]m 1 1 J _J I I )1 I
1 -)--j J ]}1 J J 1 )J 1
~I'-F)i\1-)r -)E~-c>'\./--\---r--.I '\.,..~...F'-'\E-E-~/I..,l'.,"-~._.~'\.,••
.............----.
C:::::,..,l/-
'-.,-)/'\./,._....."'r-F'"','\~\.~:)
1 05 --r----..._~__.._Gi\CE NO:91.6 S-+104--------..-.-----.------.-----.-..-.--.--.---~---.-..--.------'-"-'-
1 03 -
1 02 -
1 0'1 -
'100
93
0,...··v L.~
95 -
94--
99 -
.•/······--····•.•,l
.../"
/9 tl j---"'\//,.
,I
q-r/_\/
",I
"!9 6 .,.".,,/
\/.,"-"'-~/'
--~~--------~--_.._-~/'
9"
90
89
68
-',
t
zo
i=.<:(
."'>
iii_J
I.LJ
1.1.1:::>.
i=
-<!-lwa:
'..__..-
o
I
U1
I--'
8"?
86 -
o
8 f-\·1 I --r------r-----.--.---r-----------r---.
100 200 300
DISTANCE FF.:OM LEFT BANK HEADPIN(FT)
'r-'---'-
+00
Attachment Figure 0-51.Cross sectional profile obtained at transect 3
of Trapper Creek Side Channel.
-1·-F;'l 1-""F·--)E-[--).r-...F-)E···-E-'I /\./~\-.}.--~1-";.,(•.j '':'~~_-_r<;·,~::;,.li·/Co'l-··I~)/1-~<\L-l~
:~~T--~----------~GE__I~<:'~9~~~'_1 ------------.
1 O:J
102 --
101
100 -
'--,-----'
400300
r-----'.--··-T------r
100 200
,~~.~I....../....-.-./',/
.....~..-../"-./~__J ••-_/
-------.<".--'"'
99 --
98
1
-\
97 -\
96 - \
(::.L_.__~9 ....1 ~.__•__~__
93 -
92
91
90
EH)-
88 -
87
86
85 -.
o
9+
,-....
1--
LL
·I••~_l'''
Z
1-\-."
i=«:::;,,:
L.LJ
.-1
LLJ
LLI.....
._-""
1--
0
.<{
I
__J
(J1 I-LJ
N IJ:::
DISTANCE FROM LEFf BANK HEADPIN(FT)
Attachment Figure 0-52.Cross sectional profile obtained at transect 4
of Trapper Creek Side Channel.
I .~)I J .I J I I J I )I J ~
Attachment Tabl e D-1.Cross secti ona 1 profi 1e data obta i ned during the
1984 field season at HooliGan Side Channel 50
feet upstream of transect 3 (RM 35.2)
Date:840925
Time:1710
Gage No:35.251B
Gage Reading:1.50
W5EL:91.25
TBM:
LBHP:
RBHP:
AOF&G 30.251 LB 840711
ADF&G 30.251 LB 840711
ADF&G 30.251 RB 092584
Tm~elevation:
LBHP elevation:
RBHP elevation:
100.00
100.00
96.22
.....
"'"'
STATION
(ft )
0+00
0+00
0+06
0+22
0+39
0+60
0+83
1+12
1+21
1+35
1+53.5
1+65
1+83.6
1+94
2+09
2+14.7
2+14.7
TRUE
ELEVATION a
(ft)
100.0
99.76
99.70
96.10
95.77
94.69
93.65
92.21
91.24
90.41
89.74
90.63
91.26
93.20
95.76
95.84
96.22
DESCRIPTIO~!
LBHP
GB LBHp b
Top 1eft bank
Left water surface
Right water surface
GB RBHp c
RBHP
a Elevation relative to 100.00 ft,assigned to the study site TBM.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
0-53
4dWi¢444f
Attachment Table 0-2.Cross sectional profile data obtained during the
1984 field season at Eagle's Nest Side Channel at
Transect 2 (RM 36.2).
Date:840926
Time:1250
TBM:AOF&G 36.251 LB 840917
LBHP~ADF&G 36.251 LB 840917
RBHP:ADF&G 36.251 RB 840926
Gage No:36.2S1C
Gage Reading:0.52
WSEL:90.43
TBM elevation:100.00
LBHP elevation:100.00
RBHP elevation:98.61
"""
""'"
STATION
(ft )
0+00
0+00
0+03
0+05
0+10
0+13
0+16
0+24
0+36
0+45
0+52
0+65
0+74
0+81
0+80
1+41
1+46
1+57
1+83
2+12
2+19
2+30
2+49
TRUE
ELEVATION a
(ft)
100.0
99.56
99.38
98.29
97.95
96.13
93.42
93.41
93.78
93.78
92.65
94.46
95.29
95.74
96.65
97.91
95.79
95.94
95.25
95.64
93.48
94.10
92.91
DESCRIPTION
LBHP
GB LBHp b
Top of bank
Bottom of bank
a Elevation relative to 100.00 ft.assigned to the study site TBN.
b Ground beside left bank headpin.
0-54 -
Attachment Table 0-2 (Continued).
F'""'"
TRUE
STATION ELEVATION
(ft )(ft)DESCRI PTION
2+66.4 90.43 Left water surface
2+74 90.06
2+83 89.87 GB staff gage 36.2S1C
2+89 89.88
2+98 90.09
3+03.5 90.42 Right water surface
3+23 91.26
3+33 90.43
3+53 92.18
GB RBHp a3+65.6 98.06
3+65.6 98.61 RBHP
~a Ground beside right bank headpin.
.....
-.
D-55
Attachment Table 0-3.Cross sectional profile data obtained during the
1984 field season at Kroto Slough Head at
Transect 2 (RM 36.3).
0-56 -
Attachment Table 0-4.Cross sectional profile data obtained during the
1984 field season at Rolly Creek at Transect 2
(RM 39.0).
Date:840928 Gage No:39.0TIC
Time:1345 Gage Reading:1.16
WSEL:92.28
TBM:
LBHP:
RBHP:
ADF&G 39.0Tl LB 840710
ADF&G 39.0T1 LB 840710
ADF&G Rolly Ck.39~OT1
RB 840928
TBM elevation:100.00
LBHP elevation:100.00
RBHP elevation:102.49
r
-
STATION
(ft)
0+00
0+00
0+08
0+15
0+18
0+21
0+28
0+35
0+39
0+41
0+43
0+50
0+52
0+56
0+64
0+71
0+75
0+89
1+01
1+06
1+11
1+19
1+32
TRUE
ELEVATION a
(ft)
100.00
99.60
100.02
99.34
98.39
95.35
94.16
93.22
92.28
92.19
92.28
92.24
92.16
92.25
92.31
92.51
92.29
92.23
92.30
92.28
91.99
91.91
91.93
DESCRIPTION
LBHP
GB LBHpb
Top LB
Mid bank
Bottom LB
Left water surface
Right water surface
Left water surface
Right water surface
Left water surface
Right water surface
Left water surface
~1ain channel
~~i d rna in channe 1
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-57
--------------,""',,-------------------------
Attachment Table 0-4 (Continued).-
STATION
(ft )
1+34
1+38
1+40
1+41
1+50
1+59
1+68
1+73
1+80
1+84
1+84
TRUE
ELEVATION
(ft )
91.98
91.18
91.46
92.28
93.48
94.25
96.12
100.25
101.82
101.95
102.49
DESCRIPTION
Right water surface
Bottom of ba nk
Mid RB
Top RB
GB RBHpa
RBHP
-
a Ground beside right bank headpin.
0-58
-
Attachment Table 0-5.Cross sectional profile data obtained during the
1984 field season at Bear Bait Side Channel at
Transect 2 (RM 42.9).
Date:840927 Gage No:42.9S1
I"""Time:1110 Gage Reading:None
WSEL:88.50
TBM:AOF&G 42.9S1 LB 840710 T8M elevation:100.GO
LBHP:ADF&G 42.9S1 LB 840710 LBHP elevation:100.00
RBHP:ADF&G 42.9S1 RB 840727 RBHP elevation:98.79
TRUE
STATION ELEVATION a
r-(ft )(ft )DESCRIPTION
0+00 100.00 LBHP.-0+00 99.45 GB LBHP b
0+07 98.92 Top of bank
0+17 96.56 r'li d bank
0+19 95.23 Bottom of bank
0+29 93.73
0+32 92.49
0+48 92.56
'0+78 92.22
0+91 90.05
1+04 88.50 Left water surface-1+09 87.57
1+17 87.44
1+21.5 88.49 Right water surface
1+26 90.89
1+27 92.24
1+33 93.26
1+39 96.05,....1+41 98.35 Top RB
1+46 98.26 GB RBHp c
1+46 98.29 RBHP
r-
a Elevation relative to 100.00 ft assigned to the study site TBM.
F b Ground beside left bank headpin.
c Ground beside right bank headpin.
0-59
Attachment Table 0-6.Cross sectional profile data obtained during the
1984 field season at Last Chance Side Channel at
Transect 2 (RM 44.4).
-
Date:840927
Time:1445
TBM:ADF&G 44.451 LB 840725
LBHP:ADF&G 44.451 LB 840725
RBHP:ADF&G 44.451 RB 840927
Gage No:44.451
Gage Reading:Dry
W5EL:Dry
TBt~elevation:100.00
LBHP elevation:100.00
RBHP elevation:102.02
a Elevation relative to 100.00 ft assigned to the study site T8M.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
STATION
(ft)
0+00
0+00
0+03
0+05
0+07
0+10
0+15
0+24
0+46
0+69
0+91
1+02
1+08
1+13
1+17
1+24
1+27
1+28
1+28
TRUE
ELEVATION a
(ft )
100.00
99.59
98.86
98.63
98.99
97.57
94.75
93.99
93.36
92.92
93.19
93.02
92.57
94.25
96.40
100.26
101.31
102.35
102.02
DE5CRIPTION
LBHP
GB LBHp b
Top LB
Mid bank
Bottom LB
Bottom RB
Mid bank
Top RB
GB RBHp c
RBHP
-
~:
-
-
-
0-60 -
Attachment Table 0-7.Cross sectional profile data obtained during the
1984 field season at Rustic Wilderness 5ide
Channel at Transect 4 (RM 59.5).
Date:
Time:
TBM:
LBHP:
RBHP:
841001
1230
ADF&G 59.551 RB 840712
ADF&G 59.551 LB 841001
ADF&G 59.552 RB 840712
Gage No:59.551
Gage Reading:0.23
W5EL:92.90
TBM elevation:100.00
LBHP elevation:98.76
RBHP elevation:100.00
-
STATION
(ft )
0+00
0+00
0+05
0+06
0+17
0+24
0+36
0+48
0+70.4
0+76
0+85
0+91
1+04
1+06
1+14.8
1+14.8
TRUE
ELEVATION a
(ft )
98.76
98.31
97.79
96.94
94.99
95.63
95.22
93.52
92.90
92.70
92.57
92.89
94.89
99.10
99.51
100.00
DESCRIPTION
LBHP
GB LBHp b
Top LB
Bottom LB
Left water surface
GB staff gage 59.5S1B
Right water surface
Bottom RB
Top RB
GB RBHpc
RBHP
a Elevation relative to 100.00 ft assigned to the study site TBM.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
0-61
Attachment Table 0-8.Cross sectional profile data obtained during the
1984 field season at Caswell Creek at Transect 4
(RM 63.0).
Date:
Time:
TBM:
LBHP:
RBHP:
841009
1140
LBHP
AOF&G Caswell Cr Tr 4 LB 840711
1/2"Rebar
Gage No:63.0T4A
Gage Reading:1.16
~vSEL:93.57
TBM elevation:100.00
LBHP elevation:100.00
RBHP elevation:99.35
"""
STATION
(ft )
0+00
0+00
0+07.9
0+09.7
0+10.7
0+12.7
0+15.7
0+19.7
0+24.7
0+29.7
0+36.7
0+39.7
0+41.7
0+43.3
0+52.3
0+52.3
TRUE
ELEVATION a
(ft)
100.00
98.84
97.05
93.56
93.11
92.76
92.88
92.92
92.82
92.87
92.99
93.04
93.57
95.71
98.81
99.35
DESCRT PTION
LBHP
GB LBHp b
Top LB
Left water surface
GB staff gage
Right water surface
Top RB
GB RBHp c
RBHP
a Elevation relative to 100.00 ft assigned to the study site TBM.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
0-62
-
Attachment Table 0-9 .Cross sectional profile data obtained during the
1984 field season at Island Side Channel at
transect 1 (RM 63.2).
Date:840901 Gage No:63.2S1A
Time:1300 Gage Reading:Dry
WSEL:091.69
TBr~:ADF&G Island TBM RB 1984 TBM elevation:100.00
LBHP:ADF&G TRI LB 840725 LBHP elevation:95.99
RBHP:AOF&G Island S.C.TRI RB 840725 RBHP elevation:98.81
,-
TRUE
STATION ElEVATION a
(ft).(ft)DESCRI PTION
0+00 96.00 Left bagk head pin
0+00 95.7 GB LBHP
0+02 95.6
0+12 95.1
0+14 94.8
0+16 94.4
0+20 94.2
0+30 94.2-0+40 94.0
0+48 93.6
0+52 93.8-0+54 93.9
0+60 93.5
0+70 93.3
0+80 93.4
0+88 93.0
0+92 93.0
1+02 92.8
1+12 92.7
1+20 92.4
1+26 91.9-1+28 91.69 Left water surface
1+34 91.0
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-63
Attachment Table 0-9 (Continued).-
TRUE
STATION ELEVATION
(ft)(ft)OESCRI PTION
_!l.
1+38 90.4
1+42 90.3
1+50 90.7
1+56 90.6 ~
1+62 90.1
1+68 89.1
1+72 89.1
1+76 89.1
1+80 89.4
1+82 89.6 -1+86 90.6
1+87 91.69 Right water surface
1+87.1 95.3 Undercut
1+92 97.6 ~
1+94 98.2
1+96.5 98.4 GB RBHpa
1+96.5 98.81 RBHP ~
a Ground beside right bank headpin.
-
0-64
Attachment Table 0-10.Cross sectional profile data obtained durinq the
1984 field season at Island Side Channel at
transect 1.
Date:840901
Time:1300
Gage No:63.2S1A
Gage Reading:Dry
HSEL:091.69
TBM:ADF&G Island TBM RB 1984
LBHP:AOF&G TRI LB 840725
RBHP:AOF&G Island S.C.TRI RB 840725
TB~1 elevation:
LBHP elevation:
RBHP elevation:
100.00
95.99
98.81
-
,....
STATION
(ft )
0+00
0+00
0+02
0+10
0+18
0+28
0+32
0+34
0+44
0+50
0+52
0+62
0+68
0+78
0+84
0+86
0+96
1+06
1+16
1+26
1+32
1+34
TRUE
ELEVATION a
(ft )
96.25
95.9
95.9
95.3
94.6
94.3
94.4
94.3
QLl.')
J '.J
93.6
93.3
93.1
93.5
93.7
93.6
93.6
93.3
92.9
92.6
92.2
91.9
91.69
DESCRIPTION
Left baBk head pin
GB LBHP
Left water surface
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
D-65
-
Attachment Table 0-10 (Continued).-
TRUE
STATION ELEVATION
(ft'(ft)DESCRIPTION.)
~
1+40 91.0
1+46 90.5
1+50 90.3 -1+54 90.0
1+60 89.8
1+64 89.2
1+68 88.5 ~
1+70 88.3
1+74 87.6
1+76 87.3 ~
1+80 87.3
1+84 87.6
1+86 88.1 ....1+88 88.8
1+90 89.7
1+92 90.7
1+93 91.69 Right water surface ~
1+94 92.1
1+96 92.6
2+00 93.4 !""i2+02 93.6
2+04 94.3
2+06 94.6
2+07 96.6 Cutbank .....
2+10 98.1
2+20 98.2
2+20.5 98.2 GB RBHp a
~,
2+20.5 98.74 RBHP
a ~.
Ground beside right bank headpin.
0-66
Attachment Table 0-11.Cross sectional profile data obtained during the
1984 field season at Island Side Channel at
transect 2.
Date:840901 Gage No:63.2S2B
Time:1400 Gage Reading:00.46
~~SEL :91.70
TBM:ADF&G Island TBM RB 1984 TBM elevation:100.00,-lBHP:ADF&G TR2 LB 840725 LBHP elevation:95.94
RBHP:ADF&G Island S.C.TR2 RB 840725 RBHP elevation:99.05
,...,.
TRUE
STATION ELEVATION a
(ft)(ft )DESCRIPTION
0+00 95.94 Left baBk head pin
0+00 95.5 GB LBHP
0+02 95.5
0+08 95.0
0+12 94.1
0+14 93.3
0+22 93.4
0+26 93.5-0+36 93.7
0+46 93.6
0+56 93.7
0+66 94.3
0+68 94.3
0+78 94.1
0+88 93.4
0+98 93.0
1+08 92.8
1+18 92.5
1+28 92.1
1+32 91.8
1+34 91.70 Left water surface-1+38 91.3
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-67
~
Attachment Table 0-11 (Continued).
F!':
TRUE
STATION ELEVATION -
(ft)(ft)DESCRIPTION
~l
1+42 90.7
1+46 90.2
1+50 90.0 ~
1+54 89.7
1+60 89.6
1+64 89.4
1+68 89.0 ..,.,
1+72 89.2
1+76 89.8
1+78 90.2 ~,
1+80 90.8
1+83 91.7 Right water surface
1+84 94.9 Root mass """1+86 96.3
1+88 97.5
1+90 98.3
GB RBHpa1+93.2 98.5
1+93.2 99.05 RBHP
a Ground beside right bank headpin.
0-68
-
~,
Attachment Table 0-12.Cross sectional profile data obtained during the
1984 field season at Island Side Channel at,.-transect 3.
.-
Date:840901 Gage No:63.2S3B
Time:1430 Gage Readi ng:00.26
WSEL:91.68
TBM:AOF&G Island TBM RB 1984 TBM elevation:100.00
LBHP:ADF&G TR3 LB 840725 LBHP elevation:96.26
RBHP:AOF&G Island S.C.TR3 RB 840725 RBHP elevation:99.15
-TRUE
STATION ELEVATION a
(ft)(ft)OEseR I PTION
0+00 96.26 Left baBk headpin
0+00 95.7 GB LBHP
0+02 95.6
0+05 95.3
r-0+06 94.9
0+14 94.3
0+20 94.3
0+30 94.4,-0+40 94.3
0+50 94.3
0+58 94.3
~0+68 93.8
0+72 93.7
0+82 93.2,-0+92 93.0
1+02 92.9
1+12 92.7
1+22 92.4
1+32 92.0
1+41 91.68 Left water surface
1+44 91.4
~1+54 91.2
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-69
Attachment Table 0-12 (Continued).
-
TRUE
STATION ELEVATION .-
(ft )(ft)OESCRI PTION
1+60 """91.2
1+64 91.3
1+72 91.4
1+82 91.4
1+88 90.8
1+90 90.3
1+94 90.5
1+96 90.9
1+99 91.68 Right water surface
2+00 92.3
2+02 94.6 -
2+04 97.6
2+08 98.9 GB RBHpa
2+08 99.15 RBHP
a Ground beside right bank headpin.
-
-
.....
-
0-70 -
..-
Attachment Table 0-13.Cross sectional profile data obtained during the
1984 field season at Island Side Channel at
transect 4.
Date:840901
Time:1500
TBM:ADF&G Island TBM RB 1984
LBHP:ADF&G TR4 LB 840725
RBHP:ADF&G Island S.C.TR4 RB 840725
Gage No:2S4B
Gage Reading:00.29
WSEL:091.68
TBM elevation:100.00
LBHP elevation:97.16
RBHP elevation:100.02
-
-
STATION
(ft )
0+00
0+00
0+02
0+06
0+16
0+26
0+30
0+36
0+38
0+48
0+50
0+60
0+70
0+80
0+86
0+96
1+00
1+02
1+12
1+22
1+32
1+42
1+45
TRUE
ELEVATION a
(ft)
97.17
96.6
96.5
95.5
94.8
94.3
93.6
93.6
93.5
93.1
93.0
32.8
92.5
92.3
92.1
91.9
91.68
91.6
91.6
91.4
91.4
91.7
91.68
DESCRIPTION
Left bask head pin
GB LBHP
Left water surface
Right water surface
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-71
Attachment Table 0-13 (Continued).
TRUE
STATION ELEVATION ~
(ft)(ft)DESCRIPTION
~
1+54 92.2
1+60 92.5
1+66 92.4
1+68 92.1 ~
1+76 91.8
1+80 91.5
1+84 92.0 -1+86 92.5
1+88 97.3
1+90 97.5 -1+92 98.6
1+96 99.5
GB RBHpa1+98.2 99.5
1+98.2 100.01 RBHP
a Ground beside right bank headpin.-,
-
-
0-72 .....
-
Attachment Table 0-14.Cross sectional profile data obtained during the
1984 field season at Island Side Channel at
transect 4A (RM 63.2).
Date:840919
Time:1340
TBM:ADF&G Island TBM RB 1984
LBHP:ADF&G TR4A LB 840725
RBHP:ADF&G Island S.C.TR4A RB 840725
Gage No:63.2S8B
Gage Reading:Dry
WSEL:91.56
TBM elevation:100.00
LBHP elevation:.97.77
RBHP elevation:99.04
TRUE
STATION ELEVATION a
(ft)(ft )DESCRIPTION
0+00 97.77 LBHP
"""0+00 97.3 GB LBHp b
0+05 97.1 Left bank top
0+11 95.3 Left bank bottom
0+14 95.1
0+15 95.1
0+25 94.1
0+28 93.7
0+29 93.7
0+39 93.1
0+49 92.7
0+53 92.5
0+54 92.4
0+64 91.9--0+71 91.56 Left water surface
0+72 91.5
0+76 91.3
0+80 91.1
0+84 91.0
0+88 90.9
0+92 90.9
0+96 91.0
a Elevation relative to 100.00 ft.assigned to the study site TBM.-b Ground beside left bank headpin .
..-
0-73
Attachment Table 0-14 (Continued).
TRUE
STATION ELEVATION .~
(ft )(ft )OESCRI PTION
1+00 91.2
1+04 91.3
1+08 91.3
1+12 91.0
1+14 91.1
1+18 91.0
1+22 91.0
1+26 91.2
1+30 91.3
1+33.5 91.56 Right water surface ~
1+44 91.9
1+46 92.5
1+47 92.8
1+52 93.8
1+62 93.6
1+72 93.5
1+76 93.0 1M!'
1+78 93.3 Bottom right bank
1+84 94.9 Top right bank
1+94 94.8 ~2+00 95.2
2+01 95.2
2+15 98.0
2+17 98.4 GB RBHpa -2+17 99.04 RBHP TR4A
a -,
Ground beside right bank headpin.
-
-
D-74
.....
Attachment Table 0-15.Cross sectional profile data obtained during the
1984 field season at Island Side Channel at
transect 5.
Date:840919
Time:1400
TBM:ADF&G Island TBM RB 840725
LBHP:ADF&G TR 5LB 840725
RBHP:ADF&G Island S.C.TR 5 RB 840725
Gage No:63.2S5B
Gage Reading:Dry
I-JSEL:91.57
TBM elevation:100.00
LBHP elevation:096.82
RBHP elevation:099.68
-
-
-
STATION
(ft )
0+00
0+00
0+10
0+16
0+19
0+22
0+23
0+24
0+25
0+35
0+45
0+50
0+54
0+58
0+62
0+66
0+70
0+74
0+78
0+82
0+86
0+90
TRUE
ELEVATION a
(ft )
96.82
96.3
96.0
96.0
95.0
93.8
93.6
93.5
93.5
92.6
91.8
91.57
91.2
91.1
90.9
90.7
90.4
90.1
89.8
89.7
89.4
88.9
DESCRIPTION
Left baBk head pin
GB LBHP
LB Top
Left water surface
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-75
-
-
Attachment Table 0-15 (Continued).-
TRUE
STATION ELEVATION -(ft )(ft )DESCRIPTION
-0+94 88.6
0+98 89.0
1+02 89.3
1+06 90.0
1+10 90.9
1+12.5 91.57 Right water surface
1+13 91.7
1+17 92.9
1+18 93.2
1+19 93.7 RB Bottom -1+25 98.6 RB Top
1+33 99.1 GB RBHpa
1+33 99.69 RBHP
~
a Ground beside right bank headpin.-
-
-
-
.....
-
0-76 -
Attachment Table 0-16.Cross sectional profile data obtained during the
1984 field season at Island Side Channel at
transect 6.
Date:840919 Gage No:63.2S6B
.-Time:1425 Gage Reading:Dry
WSEL:91.57
TBM:ADF&G Island TBM RB 1984 TBM elevation:100.00
LBHP:AOF&G TR 6 LB 840725 LBHP elevation:097.25
RBHP:ADF&G Island S.C.TR 6 RB 840725 RBHP elevation:099.41
~
TRUE
STATION ELEVATION a
(ft)(ft )DESCRIPTION
0+00 97.25 Left bagk head pi n-0+00 96.4 GB LBHP
0+10 96.3
0+20 95.9
0+26 95.6
0+27 95.5
0+28 95.7
0+29 95.8,,-0+34 95.0
0+35 94.9
0+45 94.3
"'"'0+55 93.7
0+56 93.5
0+66 92.9-0+76 92.4
0+86 92.3
0+96 91.9
0+97 91.8
~1+02 91.59 Left water surface
1+04 91.4
1+08 91.1
1+12 90.6
-a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-77
0-78
-
-
-
Attachment Table D-17.Cross sectional profile data obtained during the
1984 field season at Mainstem West Bank at
transect 1.
Date:840902
Ti me:1230
Gage No:074.4S1C
Gage Reading:01.50
\I/SEL:94.96
-
TBM:ADF&G Mainstem WIB TBM RB 840915
lBHP:.ADF&G Rebar
RBHP:ADF&G 74.4S1 TR1 RB 840711
TBM elevation:
LBHP elevation:
RBHP elevation:
100.00
99.47
99.96
-STATION
(ft)
0+00
0+00
0+01
0+03
.0+05
0+06
0+08
0+10
0+12
0+16
0+20
0+23
0+26
0+28
0+32
0+37
0+47
0+57
0+67
0+77
0+87
0+97
TRUE
ELEVATION a
(ft )
99.47
99.3
99.0
98.2
98.4
97.9
96.9
96.0
94.93
94.2
93.8
93.2
92.8
92.2
91.8
91.5
91.1
91.5
92.0
92.2
92.3
92.4
DESCRIPTION
Left baBk head pin
GB LBHP
Left water surface
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-79
Attachment Table 0-17 (Continued).
0-80
Attachment Table D-18.Cross sectional profile data obtained during the
1984 field season at Mainstem West Bank at
transect 2.
Date:840902 Gage No:074.4S2C
=-Time:1500 Gage Reading:01.46
WSEL:94.99
TBM:ADF&G Mainstem W/B TBM RB 840915 TB~1 elevation:100.00
LBHP:ADF&G Rebar LBHP elevation:100.65
RBHP:ADF&G 74.4S2 TR2 RB 840711 RBHP elevation:100.03
-TRUE
STATION ELEVATION a
(ft)(ft )DESeRT PTION-
0+00 100.65 Left bagk head pin
#~0+00 100.3 GB LBHP
0+01 100.3
0+03 99.3-0+04 98.7
0+05 95.6
0+08 94.97 Left water surface
0+12 94.4
0+19 93.8
0+27 93.3
0+37 92.4
0+47 91.6
0+57 91.7
0+67 92.0
0+77 92.5
0+87 92.6
0+97 92.8
1+07 92.7-1+17 93.1
1+27 94.0
1+37 94.7
1+42.5 94.97 Right water surface
-I
,
I
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
D-81
Attachment Table 0-18 (Continued).
TRUE
STATION ELEVATION
(ft )(ft)DESCRIPTION
1+47 95.2 ~
1+57 96.0
1+67 96.7
1+71 96.9 -,
1+73 97.1
1+80 97.8
1+87 98.3
1+92 98.5 High water mark
1+97 99.1
2+00 98.6 -2+04 98.2
2+12 98.9
2+16 99.8
2+17 99.9 GB RBHpB.-2+17 100.04 RBHP TR 2
a -Ground beside right bank headpin.
""'\1\
-I
0-82
Attachment Table 0-19.Cross sectional profile data obtained during the
1984 field season at Mainstem West Bank at
transect 2A.
Date:840903
Time:1230
Gage No:74.4S5C
Gage Reading:00.56
~vSEL :94.90
--
TBM:ADF&G Mainstem W/B TBM RB 840915
LBHP:ADF&G Rebar
RBHP:ADF&G Rebar
Tsr~elevation:
LBHP elevation:
RBHP elevation:
100.00
96.53
99.38
,-
-
STATION
(ft )
0+00
0+00
0+01
0+04
0+08
0+19
0+29
0+34
0+36
0+38
0+40
0+42
0+44
0+46
0+48
0+50
0+60
0+70
0+80
0+88
0+89
TRUE
ELEVATION a
(ft )
96.53
96.1
96.1
96.1
95.9
95.5
95.4
94.85
94.7
94.5
94.5
94.5
94.5
94.6
94.6
94.9
95.5
95.3
95.9
96.4
96.5
DESCRIPTION
Left baBk head pin
GB LBHP
Left water surface
Right water surface
-
-
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-83
Attachment Table 0-19 (Continued).
TRUE
STATION ELEVATION
(ft)(ft)DESCRIPTION
0+90 96.6
0+94 98.4
0+96 98.5
0+99 99.1 GB RBHp a
0+99 99.37 RBHP
a Ground beside right bank headpin.
0-84
Attachment Table 0-20.Cross sectional profile data obtained during the
1984 field season at Mainstem West Bank at
transect 3.
Date:840902 Gage No:74.453C
Time:1600 Gage Reading:1.50
W5EL:95.18
TBM:AOF&G Mainstem W/B TBM RB 840915 TBM elevation:100.00
LBHP:AOF31G Rebar LBHP elevation:101.16
RBHP:ADF&G 74.453 TR3 RB 840711 RBHP elevation:101.03
.....
TRUE
STATION ELEVATION a
r-Ut)(ft )DESCRIPTION
0+00 101.16 Left baBk head pin
0+00 100.9 GB LBHP
0+01 100.8
0+03 101.2 Top LB
0+04 97.6
0+07 97.3
0+08 96.5
0+11 95.18 Left water su rface
0+15 94.4
0+18 93.8
0+25 93.1
f"'"0+32 93.1
0+42 92.7
0+52 92.8
0+62 92.9
0+72 93.3
0+82 93.7
0+92 94.7
0+98 95.18 Right water surface
1+02 95.5
1+12 96.1
~1+22 96.3
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
-
0-85
D-86
-
"""
Attachment Table D-21.Cross sectional profile data obtained durina the
1984 field season at ~·1ainstem West Bank at
transect 3A.
f"""
I
Date:840903
Ti me:1100
TBM:ADF&G Mainstem W/B TBM RB 840915
LBHP:ADF&G Rebar
RBHP:ADF&G No rebar
Gage No:74.4S6C
Gage Reading:1.82
~JSEL:95.20
TBM elevation:100.00
LBHP elevation:101.15
RBHP elevation:96.92
r
I
-I
STATION
(ft)
0+00
0+00
0+01
0+03
0+04
0+05
0+08
0+10
0+11
0+12
0+14
0+24
0+25
0+26
0+32
0+35
0+40
0+50
0+60
0+66
0+76
0+86
TRUE
ELEVATION a
(ft )
101.15
100.8
100.7
100.4
97.7
98.6
98.1
96.9
95.8
95.09
94.2
94.0
93.4
93.4
93.2
93.3
93.3
93.2
93.0
93.0
93.2
93.8
OEseRI PTION
Left baBk head pin
GB LBHP
Left water surface
-I
),
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-87
Attachment Table 0-21 (Continued).
~
TRUE
STATION ELEVATION
(ft)(ft )OESeRI PTION
0+96 94.8
1+00.5 95.2 Right water surface
1+10 95.8
1+20 96.2
1+30 96.4
1+40 96.6
1+45 96.7 -1+46 96.8 GB RBHpa
1+46 96.93 RBHP
~
a Ground beside right bank headpin.-
-
-
*"'
0-88
Attachment Table 0-22.Cross sectional profile data obtained during the
1984 field season at Mainstem West Bank at
transect 3B.
Date:840903
Time:1220
TBM:AOF&G Mainstem W/S TBM RB 840915
LBHP:ADF&G Rebar
RBHP:AOF&G Rebar
Gage No:74.4S7C
Gage Reading:1.20
WSEL:95.06
T8M elevation:100.00
LBHP elevation:97.91
RBHP elevation:102.02
-
STATION
(ft)
0+00
0+00
0+01
0+08
0+11
0+19
0+20
0+30
0+40
0+46
0+49
0+51
0+53
0+55
0+57
0+59
0+61
0+62
0+66
0+67.5
0+67.5
TRUE
ELEVATION a
(ft)
97.91
97.6
97.5
97.2
97.0
97.1
97.0
96.7
95.9
95.4
94.84
94.6
94.3
94.1
93.9
94.0
94.4
94.5
101.9
101.6
102.02
DESCRIPTION
Left baBk head pin
GB LBHP
Left water surface
Right water surface
GB RBHp c
RBHP
a Elevation relative to 100.00 ft assigned to the study site T8M.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
D-89
Attachment Table 0-23.Cross sectional profile data obtained durina the
1984 field season at ~1ainstell1 West Bank at
transect 4.
Gage No:74.4S4C
Gage Reading:00.83
HSEL:96.53
TBM elevation:100.00
LBHP elevation:100.03
RBHP elevation:100.99
TRUE
STATION ELEVATION a
(ft )(ft)DESCRIPTION ~
0+00 100.03 Left bagk head pin
~0+00 99.7 GB LBHP
0+01 99.7
0+06 99.5
0+10 99.1 ,...
0+20 98.8
0+30 98.5
0+33 98.3 Top LB ~0+35 96.7
0+35.5 96.44 Left water surface
0+38 95.3
0+41 95.0
0+51 94.7
0+61 94.7
0+71 95.0
0+81 95.0
0+91 95.0
1+01 95.1
1+11 95.4
1+21 95.6
1+31 95.7
1+41 95.9 \\;;1f!
a Elevation relative to 100.00 ft.assigned to the study site TBM.",,",'
b Ground beside left bank headpin.
.~'
TBM:ADF&G Mainstem W/B TBM RB 840915
LBHP:ADF&G Rebar
RBHP:ADF&G 74.4S4 TR4 RB 840711
Date:840902
Time:1715
0-90 '"'"
,.-..
Attachment Table D-23 (Continued).
~
TRUE,...,STATION ELEVATION
(ft )(ft )DESCRIPTION
1+44 96.1
1+48 96.0
1+56 96.3
1+61·96.1
1+63 96.2
1+68.5 96.5 Right water surface
1""<1+73 96.9
1+83 97.0
1+93 96.8
2+03 97.1
2+13 97.4
2+23 97.6
2+33 98.3
2+37 98.3
2+46 98.5
2+48 98.3
2+52 98.2
2+54 97.3
2+56 96.9
~2+61 96.8
2+65 98.6
2+68 98.7
2+69 99.2
2+71 99.5
2+78 99.4
2+86 99.3
2+88 99.3
2+97 99.1
3+13 98.8
3+31 100.9 GB RBHp a
3+31 100.99 RBHP
a Ground beside right bank headpin.
0-91
Attachment Table D-24.Cross sectional profile data obtained during the
1984 field season at Goose 2 Side Channel at
transect 2.
Date;840925
Time:1230
TBM;ADF&G Goose 2 TR 2 RB 1984
lBHP;ADF&G Alcap
RBHP;ADF&G Goose 2 TR 2 RB 1984
Gage No:74.852
Gage Reading;Dry
\~SEl;Dry
TBM elevation;217.17
LBHP elevation;221.17
RBHP elevation:217.17
-
TRUE
STATION ELEVATION a
(ft)(ft )DESCRIPTION
0+00 221.17 LBHP
0+00 220.17 GB LBHpb
0+11 219.92 Top LB
0+27 217.19
0+44 216.72 .-
0+49 215.00 Toe LB
0+70 214.15
0+90 214.53
1+09 215.10
1+26 214.59
1+38 214.61 Toe RB -1+43.5 216.17 1'1i d RB
1+51 217.48 Top RB
1+61.6 216.82 GB RBHp c
1+61.6 217.18 RBHP -
a Elevation relative to 100.00 ft assigned to the study site TBM.~trt
b Ground beside left bank headpin.
c Ground beside right bank headpin.-
-
0-92
Attachment Table 0-25.Cross sectional profile data obtained during the
1984 field season at Circular Side Channel at
transect 1.
Date:840905 Gage No:75.3S1
Time:0900 Gage Reading:No reading taken
l~SEL:87.67
1"'"TBM:ADF&G Circular TBM RB 840824 TBM elevation:100.00
LBHP:AOF&G TR1 LB 840724 LBHP elevation:94.06
RBHP:ADF&G Circular S.C.TR1 RB 1984 RBHP elevation:94.06
-
STATION
(ft)
0+00
0+00
0+07
0+13
0+15
0+26
0+36
0+46
0+56
0+63
0+72
0+74
0+84
0+94
1+01
1+04
1+14
1+24
1+34
1+42
1+46
1+50
TRUE
ELEVATION a
(ft)
94.06
93.7
94.1
91.7
91.3
91.0
90.5
89.9
89.3
88.9
88.4
88.3
87.9
87.6
87.64
87.6
87.4
87.3
87.5
87.69
88.1
89.2
DESCRI PTION
Left bagk head pin
GB LBHP
Left water surface
Right water surface
,...
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-93
Attachment Table 0-25 (Continued).-
STATION
(ft)
1+54
1+56
1+59
1+60.6
1+60.6
TRUE
ELEVATION
(ft)
89.6
90.2
91.8
93.7
94.06
OEseR I PTION
GB RBHpa
RBHP
....
-
a,Ground beside right bank headpin.
0-94
...
-
Attachment Table 0-26.Cross sectional profile data obtained during the
1984 field season at Circular Side Channel at
transect 2.
Date:840905
Time:0930
Gage No:75.3S2
Gage Reading:No reading taken
14SEL:88.45
TBM:ADF&G Circular TBM RB 840824
LBHP:ADF&G TR2 LB 840724
RBHP:ADF&G Circular S.C.TR2 RB 840724
rm·1 e1evat;0 n:
LBHP elevation:
RBHP elevation:
100.00
96.50
99.66
TRUE
STATION ELEVATION a
(ft)(ft )DESCRIPTION
0+00 96.50 Left bagk head pin
0+00 96.1 GB LBHP
0+04 95.9 Top of bank
0+10 90.8 Bottom LB
0+13 89.6
0+23 89.3
0+24 89.4
0+34 89.5
0+44 89.5
0+54 89.6
0+64 89.9
0+70 89.7
0+71 89.6
0+81 89.5
0+90 89.3
0+91 89.3
1+01 88.8
1+11 88.5
1+14 88.45 Left water surface
1+24 88.4
1+26 88.3
1+31 88.5 Right water surface
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-95
Attachment Table 0-26 (Continued).
STATION
(ft)
1+36
1+45
1+46
1+53
1+54
1+58
1+59
1+66
1+69
1+69
TRUE
ELEVATION
(ft)
88.7
88.7
88.6
88.8
89.0
90.8
93.3
99.0
99.2
99.66
DESCRIPTION
Bottom RB
Top RB
GB RBHpa
RBHP
a Ground beside right bank headpin.
0-96
Attachment Table 0-27.Cross sectional profile data obtained during the
1984 field season at Circular Side Channel at
transect 2A.
Date:840905
Time:1000
Gage No:75.3S6
Gage Reading:No reading taken
WSEL:88.65
"...
TBM:ADF&G Circular TBM RB 840824 TBM elevation:
LBHP:ADF&G TR2A LB 840724 LBHP elevation:
RBHP:ADF&G Circular S.C.TR2A RB 840724 RBHP elevation:
100.00
99.46
99.68
....
I
~
I
TRUE
STATION ELEVATION a
(ft )(ft )DESCRIPTION
0+00 99.46 Left baBk head pin
0+00 98.9 GB LBHP
0+07 98.3 Top of bank
0+12 94.6
0+14 90.2 Bottom LB undercut
0+16 89.5 Inundated logs
0+17 89.02 Left water surface
0+19 88.6
0+20 88.7
0+25 89.02 Right water surface
0+27 89.1
0+28 89.3
0+38 89.2
0+45 89.9
0+56 89.9
0+57 90.0
0+67 90.5
0+77 90.3
0+87 90.3
0+97 90.2
1+07 90.3
1+13 90.3
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-97
Attachment Table 0-27 (Continued).
-
STATION
(ft )
1+14
1+24
1+25
1+35
1+37
1+48
1+49
1+59
1+69
1+70
1+72
1+73
1+75
1+76
1+81
1+84
1+87
1+88
1+90
1+92.5
1+92.5
TRUE
ELEVATION
(ft)
90.2
90.0
90.0
89.3
89.1
88.65
88.4
87.6
88.6
88.65
88.8
89.1
89.6
89.8
92.6
94.2
95.5
98.2
99.2
99.4
99.70
DESCRIPTION
Left water surf.mair.channel
Right water surf.main channel
Bottom of cut bank
Top RB
GB RBHp a
RBHP
a Ground beside right bank headpin.
0-98
-
-
....
....
Attachment Table 0-28.Cross sectional profile data obtained during the
1984 field season at Circular Side Channel at
transect 3.
r
Date:840905
Time:1030
Gage No:75.353
Gage Reading:No reading taken
WSEL:89.50
TBM:AOF&G Circular TBM RB 840824
LBHP:ADF&G TR3 LB 840724
RBHP:AOF&G Circular S.C.TR3 RB 1984
TBt~elevation:
LBHP elevation:
RBHP elevation:
100.00
99.08
96.09
....
TRUE
STATION ELEVATION a
(ft )(ft )DESCRI PTION
0+00 99.08 Left baBk head pin
0+00 98.6 GB LBHP
0+01 98.6
0+06 97.8 Top LB
0+11 93.0
0+13 91.2
0+16 90.4
0+27 90.3
0+28 90.3
0+38 90.7
0+48 90.7
0+58 90.8
0+59 90.9
0+69 90.8
0+79 90.6
0+89 90.5
0+99 90.1
1+09 90.0
1+19 89.9
1+25 89.9
1+26 89.9
1+36 89.7
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin .
0-99
Attachment Table 0-28 (Continued).
TRUE
STATION ELEVATION -(ft)(ft )OESCRI PTION -1+39 89.51 Left water surface
1+49 89.1
1+59 89.3
1+63 89.49 Right water surface
1+74 91.0
1+78 90.9
1+79 90.9 ~
1+89 91.3
1+99 91.7
2+04 92.5 ~
2+11 93.9 Hi gh water rna rk
2+13 95.1
2+14.5 95.8 GB RBHp a
2+14.5 96.10 RBHP -;
a Ground beside right bank headpin."""
0-100
Attachment Table 0-29.Cross sectional profile data obtained during the
1984 field season at Circular Side Channel at
transect 4.
Date:840905
Time:1100
Gage No:75.354
Gage Reading:No reading taken
WSEL:89.81
T8M:ADF&G Circular T8M RB 840824
LBHP:ADF&G TR4 LB 840710
RBHP:ADF&G Circular s.C.TR4 840710
TBM elevation:
LBHP elevation:
RBHP elevation:
100.00
97.56
97.85
STATIOIII
(ft )
0+00
0+00
0+01
0+08
0+10
0+14
0+15
0+16
0+22
0+24
0+34
0+44
0+45
0+55
0+65
0+75
0+78
0+88
0+98
1+08
1+18
1+22
TRUE
ELEVATION a
(ft )
97.56
97.1
96.8
95.6
94.4
92.2
91.9
91.8
91.7
91.7
91.5
91.3
91.4
90.9
90.5
90.0
89.80
89.4
89.2
89.1
89.3
89.5
DESCRT PTION
Left baBk head pin
GB LBHP
Top LB
Bottom LB
Left water surface
a Elevation relative to 100.00 ft.assigned to the study site T8M.
b Ground beside left bank headpin.
0-101
~
Attachment Table 0-29 (Conti nued).....
TRUE
STATION ELEVATION ~
(ft)(ft)DESCRIPTION
~
1+23 89.5
1+32 89.4
1+33 89.4 .."
1+42 89.81 Right water surface
1+52 90.9
1+53 91.0
1+63 91.5 ~1
1+68 91.6
1+69 91.7
1+73 92.3 Bottom RB ~
1+77 93.9
1+78 94.01
1+88 93.7
1+98 93.7 """
2+02 94.3
2+09 96.5
2+12 97.7 GB RBHpa
2+12 97.84 RBHP
a II""
Ground beside right bank headpin.
~
~-
0-102
Attachment Table 0-30.Cross sectional profile data obtained during the
1984 field season at Circular Side Channel at
transect 5.
Date:840905 Gage No:75.3S5
Time:1130 Gage Reading:No reading taken
WSEL:89.77
TBM:ADF&G Circular TBM RB 840824 TBM elevation:100.00
~LBHP:ADF&G TR5 Lb 840724 LBHP elevation:98.00
RBHP:ADF&G Circular S.C.TR5 RB 840724 RBHP elevation:96.59
-
r
-
TRUE
STATION ELEVATION a
(ft)(ft )DESCRIPTION
0+00 98.00 Left baBk head pin
0+00 97.4 GB LBHP
0+01 97.3
0+04.5 96.9 Top LB
0+06 93.8 Bottom LB
0+10 91.9
0+14.5 89.76 Left water surface
0+24 89.2
0+29 89.8 Right water surface
0+35 90.3 Top of gravel bar
0+40 89.78 Left water surface
0+50 89.0
0+60 88.1
0+68 87.0
0+70 86.9
0+80 88.3
0+90 89.6
0+95 89.7 Right water surface
1+05 90.7
1+15 91.5
1+25 91.4
1+35 91.4
a Elevation relative to 100.00 ft.ass i gned to the study s ite TB~I.
b Ground beside left bank headpin.
0-103
Attachment Table 0-30 (Continued).
TRUE
STATION ELEVATION
(ft)(ft )
1+45 92.8
1+55 93.5
1+65 93.7
1+75 93.1
1+85 92.0
1+95 92.4
2+05 91.5
2+11 90.7
2+14 93.9
2+19 95.1
2+26 95.8
2+26.5 96.2
2+26.5 96.57
a Ground beside right bank headpin.
0-104
i4
DESCRIPTION
Bottom of cut bank,overhanging
Top of cut bank
GB RBHpa
RBHP
-
-
....
~i
"""
Attachment Table 0-31.Cross sectional profile data obtained during the
1984 field season at Sauna Side Channel at
transect 1 (RM 79.8).
Date:840915
Time:1400
Gage No:79.8S1C
Gage Reading:Dry
HSEL:88.75
TBM:ADF&G Sauna TBM LB 840823
LBHP:ADF&G Sauna S.C.TR1 LB 840723
RBHP:ADF&G TR1 RB 840723
TBM elevation:
LBHP elevation:
RBHP elevation:
100.00
96.33
94.45
-
STATION
(ft )
0+00
0+00
0+03
0+06
0+07
0+17
0+22
0+23
0+24
0+34
0+44
0+54
0+64
0+74
0+84
0+94
0+95
1+05
1+15
1+23.3
1+23.3
TRUE
ELEVATION a
(ft)
96.33
95.9
93.9
92.9
90.3
89.1
88.75
88.6
88.75
89.1
89.2
89.3
89.6
91.2
91.6
91.9
91.9
92.0
93.4
94.1
94.46
OESCRI PTION
Left baBk head pin bGBLBHP,mid bank
LB Bottom
Left water surface
Thalweg
Right water surface
Bottom of bank
Top of bank
Bottom of RB
GB RBHp c
RBHP
a Elevation relative to 100.00 ft assigned to the study site TBM.
b Ground beside left bank headpin.
C Ground beside right bank headpin.
0-105
Attachment Table 0-32.Cross sectional profile data obtained during the
1984 field season at Sauna Side Channel at
Transect 2.
Date:840915
Time:1430
Gage No:79.8S2C
Gage Reading:Dry
\~SEL:89.00
.....
TBM:ADF&G Sauna TBM LB 840823
LBHP:ADF&G Sauna S.C.TR2 LB 1984
RBHP:ADF&G TR2 RB 840723
TBM elevation:
LBHP elevation:
RBHP elevation:
100.00
92.94
95.38
STATION
(ft )
0+00
0+00
0+01
0+03
0+04
0+07
0+08
0+18
0+28
0+30.5
0+40
0+50
0+60
0+63.5
0+73
0+83
0+93
1+03
1+08
1+18
1+28
1+38
TRUE
ELEVATION a
(ft )
99.33
98.8
98.9
98.8
96.6
95.1
94.7
91.5
89.2
88.97
87.5
87.4
88.2
88.6
91.4
91.8
92.0
92.3
92.2
92.2
92.4
92.8
DESCRI PTION
Left bagk head pin
GB LBHP
Top left bank
Bottom LB
Left water surface
Right water surface
RB
-
-
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-106
Attachment Table 0-32 (Continued).
STATION
(ft)
1+48
1+58
1+68
1+78
1+88
1+92.5
1+92.5
TRUE
ELEVATION
(ft )
93.0
93.2
93.1
93.1
93.2
93.1
93.87
OEseR I PTION
GB RBHpa
RBHP
a Ground beside right bank headpin.
0-107
Attachment Table 0-33.Cross sectional profile data obtained during the
1984 field season at Sauna Side Channel at
transect 3."""
Date:840905
Time:1300
Gage No:79.8S3C
Gage Reading:Dry
WSEL:88.97
T8M:AOF&G Sauna TBM LB 840823
LBHP:ADF&G Sauna S.C.TR3 LB 840723
RBHP:ADF&G TR3 RB 840723
TBt·1 e 1evat i on:
LBHP elevation:
RBHP elevation:
100.00
99.33
93.84
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
STATION
(ft)
0+00
0+00
0+01
0+03
0+04
0+07
0+08
0+18
0+28
0+30.5
0+40
0+50
0+60
0+63.5
0+73
0+83
0+93
1+03
1+08
1+18
1+28
1+38
TRUE
ELEVATION a
(ft )
99.33
98.8
98.9
98.8
96.6
95.1
94.7
91.5
89.2
88.97
87.5
87.4
88.2
88.6
91.4
91.8
92.0
92.3
92.2
92.2
92.4
92.8
DESCRT PTION
Left bagk head pin
GB LBHP
Top left bank
Bottom LB
Left water surface
Right water surface
RB -
-
-
0-108
Attachment Table D-33 (Continued).
STATION
(ft)
1+48
1+58
1+68
1+78
1+88
1+92.5
1+92.5
TRUE
ELEVATION
(ft)
93.0
93.2
93.1
93.1
93.2
93.1
93.87
DESCRIPTION
GB RBHp a
RBHP
a Ground beside right bank headpin.
0-109
Attachment Table 0-34.Cross sectional profile data obtained during the
1984 field season at Sauna Side Channel at
Transect 4.-
Date:
Time:
TBM:
LBHP:
RBHP:
840905
1330
ADF&G Sauna TBM LB 840823
ADF&G Sauna S.C.TR4 LB 840723
ADF&G TR4 RB 840723
Gage No:79.8S4C
Gage Reading:1.36
WSEL:088.99
TBM elevation:100.00
LBHP elevation:100.57
RBHP elevation:93.82
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
STATION
(ft )
0+00
0+00
0+07
0+08
0+10
0+13
0+18
0+21
0+22
0+24
0+27
0+31
0+35
0+45
0+55
0+65
0+75
0+85
0+95
0+98
1+01
1+11
TRUE
ELEVATION a
(ft)
100.57
100.0
99.8
95.4
93.7
91.9
89.6
88.99
88.0
87.5
87.8
88.8
90.1
90.5
90.6
91.3
91.3
91.9
92.5
92.3
91.9
91.9
DESCRIPTION
Left bagk head pin
GB LBHP
Top LB
Bottom LB
Left water surface
Right water surface
-
0-110
r-
I
i
Attachment Table 0-34 (Continued).
TRUE
STATION ELEVATION
(ft)(ft)DESCRIPTION
1+16 92.3
1+17 92.4
1+27 92.9
1+37 93.6
1+39 93.6
1+41 93.5 GB RBHp a
1+41 93.83 RBHP
a Ground beside right bank headpin.
0-111
Attachment Table 0-35.Cross sectional profile data obtained during the
1984 field season at Sucker Side Channel at TR 2
(RM 84.5).
Date:
Time:
TBr~:
LBHP:
RBHP:
840914
1110
ADF&G Sucker TBM LB 840823
AOF&G Sucker TR 2 LB 840914
ADF&G Sucker SIC TR 2 RB 1984
Gage No:84.5S2C
Gage Reading:0.42
WSEL:261.51
TBM elevation:269.71
LBHP elevation:268.81
RBHP elevation:270.41
-
-
STATION
(ft )
0+00
0+00
0+08.3
0+15.7
0+20.7
0+31.7
0+45.7
0+63.8
0+73.1
0+90.7
0+94.7
1+12.5
1+18.9
1+25.1
1+25.7
1+33.4
1+36.7
1+40.7
1+45.7
1+47.4
1+47.4
TRUE
ELEVATION a
(ft )
268.81
268.66
267.37
267.26
264.58
264.03
264.61
263.78
262.92
262.49
263.24
263.41
261.50
261.52
261.25
262.78
263.02
266.48
268.08
270.22
270.41
DESCRIPTION
LBHP
GB LBHp b
Edge of vegetation
Toe
Left water surface
Right water surface
Thalweg
Edge ofcvegetation
GB RBHP
RBHP
-
a Elevation relative to mean sea level assigned to the study site
TBM.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
0-112
,ilf!llI'il
Attachment Table D-36.Cross sectional profile data obtained during the
1984 field season at Sucker Side Channel at
Transect 5 (RM 84.5).
Date:840914
T"ime:1210
TBM:ADF&G Sucker TBM LB 840823
LBHP:ADF&G Sucker TR5 LB 840914
RBHP:ADF&G Sucker SIC TR5 RB 1984
Gage No:84.5S5B
Gage Reading:0.22
vJSEL:262.37
TBM elevation:269.71
LBHP elevation:269.00
RBHP elevation:267.84
r
1
r
r
STATION
(ft )
0+00
0+00
0+03.9
0+11.4
0+18.5
0+24.2
0+42.9
0+51.2
0+76.4
0+96.6
1+10.2
1+17.4
1+22.8
1+31.2
1+31.2
TRUE
ELEVATION a
(ft )
269.00
268.76
268.90
264.65
264.31
264.04
264.41
264.26
262.73
262.29
262.74
264.49
264.19
267.46
267.84
DESCRT PTION
LBHP
GB LBHp b
Top,veg.1 ine
Left water edge
Thalweg
Right water edge
GB RBHp c
RBHP
-
a Elevation relative to mean sea level assigned to the study site
TBM.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
D-113
Attachment Table 0-37.Cross sectional profile data obtained during the
1984 field season at Beaver Dam Slough at
transect 1 (RM 86.3).
Date:840914
Time:1540
Gage No:86.3S1C
Gage Reading:1.42
\~SEL:92.85
TBM:ADF&G Beaver Dam TBM RB 840914 TBM elevation:100.00
LBHP:ADF&G Beaver Dam SL.GRI TR1LB 1984 LBHP elevation:97.75
RBHP:ADF&G Beaver GR1 TR1 RB 840914 RBHP elevation:100.05
STATION
(ft)
0+00
0+00
0+01
0+09
0+18
0+20.3
0+26
0+30.5
0+39
0+44.5
0+49.8
0+55.6
0+61.5
0+63.3
0+63.3
TRUE
ELEVATION a
(ft)
97.75
97.31
96.52
95.03
93.80
92.79
92.12
91.91
92.15
92.00
92.79
94.98
99.57
99.84
100.05
DESCRIPTION
LBHP
GB LBHp b
Edge of veg.
Toe LB
Left water surface
Thalweg
Right water surface
GB RBHp c
RBHP
a Elevation relative to 100.00 ft assigned to the study site TBM.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
0-114
Attachment Table D-38.Cross sectional profile data obtained during the
1984 field season at Beaver Dam Side Channel at
transect 4 (RM 86.3).
Date:840916
Time:1200
Gage No:86.3540
Gage Reading:1.36
HSEL:92.67
TBM:AOF&G Beaver Dam TBM RB 840914 TBM elevation:100.00
LBHP:ADF&G Beaver Dam Slough GR2 TR4LB LBHP elevation:99.02
RBHP:ADF&G Beaver GR2 TR4 RB 840914 RBHP elevation:100.16
TRUE
STATION ELEVATION a
(ft )(ft )OESCRI PTION
0+00 99.02 LBHP
0+00 98.61 GB LBHp b
0+02.4 98.25 Top LB
0+06 96.32
.-0+15.8 94.50
i 0+22.4 92.65 Left water surface:0+36.8 89.60
r-0+47.3 88.74
i 0+53.8 89.23
0+64.3 91.29
0+68.8 92.68 Right water surface
("'"'0+75.6 93.71 Toe
0+79.5 99.41 Top RB c
0+81.8 99.91 GB RBHP
0+81.8 100.16 RBHP
a Elevation relative to 100.00 ft assigned to tile study site TBM.
b Ground beside left bank headpin.
c Ground beside right bank headpin.
0-115
Attachment Table 0-39.Cross sectional profile data obtained during the
1984 field season at Sunset Side Channel at
transect 0 (RM 86.9).
Date:
Time:
TBr1:
LBHP:
RBHP:
840914
1400
ADF&G Sunset TBM LB 840822
ADF&G TRO ·LB 840722
ADF&G 86.9S0 TRO 840722
Gage No:86.9S0C
Gage Reading:Dry
WSEL:92.81
TBM elevation:100.00
LBHP elevation:101.66
RBHP elevation:100.47
TRUE
STATION ELEVATION a
(ft )(ft )DESCRI pnON
0+00 101.66 Left bagk head pin
0+00 101.0 GB LBHP
0+07 100.4 Top of cut bank
0+10 96.7 Bottom of LB
0+14 95.2 -0+24 94.5
0+26 94.4
0+29 92.8 ~
0+39 93.2
0+49 93.5
0+55 92.80 Left water surface
0+58 92.2 Thalweg -
0+68 92.7
0+73 92.6
0+74 92.6
0+84 92.81 Right water surface
0+91 93.3
0+92 93.4
1+02 94.0
1+12 94.2
1+22 94.4
1+32 94.6 ~
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
~
-
D-116
Attachment Table 0-39 (Continued).
TRUE
STATION ELEVATION
(ft)(ft)OEseR I PTION
1+33 94.6
1+43 94.6
ff"""'.1+53 94.7
1+63 94.6
1+73 94.5
1+83 94.6
~1+93 94.7
2+03 94.8
2+13 94.9
!""'"2+23 95.1
2+33 95.3.
2+43 95.5
2+44 95.5
2+54 95.8
2+64 96.1
2+74 96.5
~2+84 96.6
I 2+85 96.812+95 97.2
3+05 97.3
3+15 97.5
3+17 97.9 Bottom RB
3+20 98.4 Top RB
r-3+30 99.5
3+40 99.4
3+41 99.4 GB RBHp a
3+41 100.46 RBHP
a Ground beside right bank headpin.-.
0-117
Attachment Table 0-40.Cross sectional profile data obtained during the
1984 field season at Sunset Side Channel at
transect 1.
""'"
Date:840913
Time:1440
TBM:ADF&G Sunset TBM LB 840822
LBHP:ADF&G TRI LB 840722
RBHP:ADF&G 86.9S1
Gage No;86.9S1C
Gage Reading:0.49
WSEL:93.27
TBM elevation:100.00
LBHP elevation:100.36
RBHP elevation:99.43
TRUE
STATION ELEVATION a
(ft)(ft )DESCRIPTION -
0+00 100.36 Left bagk head pin """0+00 100.0 GB LBHP
0+03 100.0 Top of LB
0+06 98.7
0+07 98.6
0+17 96.5
0+18 96.2 LB bottom
0+28 95.1 -0+38 94.8
0+48 94.2
0+58 93.5
0+62.5 93.28 Left water surface
0+67 92.9 Thalweg
0+68 93.0
0+78 93.2 _.
0+88 93.3
0+98 93.2
1+02 93.26 Right water surface ~
1+10 93.6
1+12 93.19 Backwater pool left water surf.
1+22 93.17 Bachiater pool right water surf.
1+32 93.9
a Elevation relative to 100.00 ft.assigned to the study site TBM."""I
b Ground beside left bank headpin.
-
0-118
Attachment Table 0-40 (Continued).
TRUE
STATION ELEVATION
(ft )(ft)DESCRIPTION
1+42 94.1
1+52 94.3
ff'"1+62 94.6
1+72 94.8
1+82 95.2
1+92 95.5
2+02 95.7
2+12 96.0
2+22 96.1
2+23 96.2
2+33 96.3
2+43 96.5
2+53 96.8
2+63 97.4
2+73 97.7
2+83 98.2
2+93 98.7
3+03 99.3
3+04 99.4 GB RBHp a
r-3+04 99.45 RBHP
!
a Ground beside right bank headpin.:-
--
D-119
Attachment Table 0-41.Cross sectional profile data obtained during the
1984 field season at Sunset Side Channel at
transect 2.
-
-
Date:840914
Time:1500
TBM:ADF&G Sunset TBM LB 840822
LBHP:ADF&G TR2 LB 840722
RBHP:ADF&G 86.952 TR2 840709
Gage No:86.9S2B
Gage Reading:00.32
WSEL:93.83
TBM elevation:100.00
LBHP elevation:100.49
RBHP elevation:99.88
-
TRUE
STATION ELEVATION a
(ft )(ft )DESCRIPTION
0+00 100.49 Left bagk head pin
0+00 100.0 GB LBHP
0+03 99.9 Top LB
0+08 96.7 Bottom LB
0+15 97.2
0+16 97.3
0+26 96.4
0+36 96.2
0+46 96.4
0+56 96.1
0+66 95.7
0+76 95.4
0+77 95.3
0+87 95.1
0+90 95.0
0+91 95.0
0+95 94.7
0+96 94.7
1+06 94.6
1+16 94.2
1+26 94.0
1+36 93.8
a Elevation relative to 100.00 ft.assigned to the study site IBM.
b Ground beside left bank headpin.
D-120
-
-
I""",
--
Attachment Table 0-41 (Continued).
0-121
Attachment Table D-42.Cross sectional profile data obtained during the
1984 field season at Sunset Side Channel at
transect 3.
Date:840914
Time:1525
T8M:ADF&G Sunset TBM LB 840822
LBHP:ADF&G TR3 LB 840722
RBHP:ADF&G 86.954 TR4 840709
0-122
Gage ~o:86.9538
Gage Reading:1.12
W5EL:93.85
TBM elevation:290.00
LBHP elevation:100.32
RBHP elevation:104.29
Attachment Table 0-42 (Continued).
TRUE
STATION ELEVATION
(ft)(ft)DESCRIPTION
1+22 94.8
1+32 94.6
.r-1+42 94.5
1+52 94.5
1+62 94.3
1+65.5 93.86 Lefi:'fJa ter surface.....1+75 92.8
1+76 92.7
1+85 92.0 Thalweg
1+95 92.5
2+04 93.84 Right water surface
2+08 95.5 Bottom RB
2+17 104.2
2+19 104.2 GB RBHp a
2+19 104.28 RI3HP
a Ground beside right bank headpin.
r-I
r
,..,..
(1-123
Attachment Table 0-43.Cross sectional profile data obtained during the
1984 field season at Sunset Side Channel at
transect 4.
-
-
Date:840914
Time:1615
TBM:ADF&G Sunset TBM LB 840822
LBHP:ADF&G TR4LB 840722
RBHP:ADF&G 86.954 TR4 840709
Gage No:86.9S48
Gage Reading:00.74
vJSEL:94.55
TBM elevation:100.00
LBHP elevation:101.62
RBHP elevation:104.26
TRUE
STATION ELEVATION a
(ft )(ft )DESCRIPTION
0+00 101.62 Left baBk head pin -0+00 101.3 GB LBHP
0+06 100.5 Top bank
0+10 98.1
0+12 96.4 Bottom LB ""'"
0+14 95.9
0+18 95.5
0+28 95.6 -0+31 95.5
0+32 95.5
0+42 95.8
0+5?96.0
0+62 96.0
0+67 96.0
0+68 96.0 ~
0+78 95.8
0+83 95.6
0+93 95.2 ""'"1+03 94.9
1+13 94.57 Left water surface
1+20 94.4 Thalweg
1+23 94.4
_'I"
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
....,
-
D-124 -
Attachment Table 0-43 (Continued).
TRUE
STATION ELEVATION
(ft)(ft)DESCRIPTION
1+24 94.4
1+34 94.4
1+37 94.53 Right water surface
1+42 94.7
1+43 94.8
1+53 95.3
1+63 95.4
1+73 95.4
1+83 95.4
1+93 95.1
2+00 94.9
2+01 94.8
2+04 94.9
2+05 94.8
2+07 94.7
2+08 95.0
2+12 95.0
2+13 94.7
2+18 94.7
cI"'"2+21 94.4
2+22 94.4
2+24 94.28 Left water surface
2+29 93.8
2+30 94.27
2+31 94.6
2+34 95.9 Bottom RB
,~2+38 102.3 Top RB a
2+43 103.9 GB RBHP
2+43 104.26 RBHP
a Ground beside right bank headpin.
-
-
..-
0-125
Attachment Table 0-44.Cross sectional profile data obtained during the
1984 field season at Sunset Side Channel at
transect 5.
-.
Date:840914
Time:1710
TBM:ADF&G Sunset TBM LB 840822
LBHP:ADF&G TR5 LB 840722
RBHP:AOF&G 86.955 TR5 840709
Gage No:86.9S5B
Gage Readi ng:1.14
~~SEL:94.74
TBM elevation:100.00
LBHP elevation:100.61
RBHP elevation:102.42
TRUE
STATION ELEVATION a
(ft )(ft)DESCRIPTION
0+00 100.61 Left bagk head pin
0+00 100.1 GB LBHP
0+03 99.7 Top LB
0+08 98.7
0+11 97.7 Bottom LB
0+13 98.0
0+23 97.6
0+30 96.8
0+31 96.7
0+35 96.6
0+36 96.6
0+37 96.6
0+38 96.5
0+39 96.6
0+45 96.5
0+46 96.4
0+51 96.4
0+52 96.4
0+62 96.3
0+72 96.0
0+79 95.7
0+80 95.6
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-126
Attachment Table 0-44 (Continued).
TRUE
STATION ELEVATION
(ft)(ft)DESCRIPTION
0+90 95.J
1+00 94.8
..-1+02 94.74 Left water surface
I 1+12 94.2
1+22 93.6
1+32 93.1
1+37 92.8
1+38 92.8
1+48 92.6
1+57 92.4
1+58 92.3
1+62 92.3 Thalweg
1+65 92.4
1+66 92.4
1+72 93.0
1+75 92.8
1+76 92.8
1+81 93.5
1+82 93.6
1+86 93.7
1+87 94.1
1+91 94.73 Right water surface
1+95 95.3
1+96 95.7
2+01 96.9 RB bottom
2+02 100.0 Top RB
f"""2+05 101.7
2+10 102.3 GB RBHp a
2+10 RBHP elevation not shot-
a Ground beside right bank headpin.
~
..-
-
-0-127
Attachment Table 0-45.Cross sectional profile data obtained during the
1984 field season at Sunset Side Channel at
transect 6.
-~
-
Date:840914
Time:1800
TBM:AOF&G Sunset T8M LB 840822
LBHP:ADF&G TR6 LB 840722
RBHP:ADF&G 86.956 TR6 840722
0-128
Gage No:86.9S6C
Gage Reading:00.45
WSEL:94.77
T8M elevation:100.00
LBHP elevation:100.71
RBHP elevation:103.13
-
-
-
-
Attachment Table 0-45 (Continued).
D-129
Attachment Table 0-46.Cross sectional profile data obtained during the
1984 field season at Sunrise Side Channel at
transect 4 (RM 87.0).
Date:840912
Time:1600
TBM:ADF&G Sunrise S.C.TR4 RB 1984
LBHP:ADF&G Sunrise TR4 LB 840912
RBHP:ADF&G Sunrise SIC TR4 RB 1984
Gage No:87.0S4
Gage Reading:Dry
WSEL:Dry
TBM elevation:100.00
LBHP elevation:100.00
RBHP elevation:100.00
-
STATION
(ft )
0+00
0+00
0+07
0+17
0+99
1+54
1+78
1+97
2+13
2+36
2+53
2+62
2+82
2+89
2+89
TRUE
ELEVATION a
(ft )
100.00
99.55
99.20
96.74
95.57
94.22
94.73
95.57
96.16
97.01
97.47
97.93
98.33
99.67
100.00
DESCRIPTION
LBHP
GB LBHp b
Top of bank
Toe
ThahJeg
GB RBHp c
RBHP
-
-
-
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
C Ground beside right bank headpin.
D-130
Attachment Table 0-47.Cross sectional profile data obtained during the
1984 field season at Birch Creek Slough at
transect 2 (RM 88.4).
Date:840927
Time:1635
Gage No:88.4S2B
Gage Reading:1.30
HSEL:274.17
TBM:
LBHP:
RBHP:
R&M Consultants 89.3S1 LB 1982
ADF&G Birch TR2 LB 1984
AOF&G Birch Cr Sl TR 2 RB 1984
TBM elevation:278.79
LBHP elevation:291.50
RBHP elevation:291.07
TRUE
STATION ELEVATION a
~(ft)(ft)DESCRIPTION
0+00 293.50 LBHP
0+00 292.46 GB LBHpb
0+09.5 293.15 Top LB
0+15 292.72 Edge of bank
0+17.5 288.57 t~i d-bank
0+25 283.18 Toe,1eft water surface
0+30 282.99
0+39 282.62
0+48 282.20
0+55 281.91
0+60 282.01
~0+66 282.17
0+78 283.14 Right water surface
0+87 283;64 Toe RB
0+93.5 285.80 ~~i d bank
1+00.5 290.31 GB RBHp c
1+00.5 291.07 RBHP
a Elevation relative to 100.00 ft assigned to the study site TBt-L
f'"b Ground beside left bank headpin.
c Ground beside right bank headpin.
.-
-D-131
Attachment Table 0-48.Cross sectional profile data obtained during the
1984 field season at Birch Creek Slough at
transect 6 (RM 88.4).
Date:840927
Time:1610
Gage No:88.4S1B
Gage Reading:1.32
WSEL:278.38
TBM:
lBHP:
RBHP:
R&M Consultants 89.3S1 LB 1982
ADF&G Birch TR6 LB 1984
ADF&G Birch Cr Sl TR 6 RB 1984
TBM elevation:278.79
lBHP elevation:293.39
RBHP elevation:289.31
a Elevation relative to 100.00 ft assigned to the study site TBM.
b Ground beside left bank headpin.
C Ground beside right bank headpin.
STATION
(ft )
0+00
0+00
0+09
0+13.5
0+17
0+19
0+23.5
0+30
0+36
0+43
0+52
0+59
0+69
0+75
0+80.5
0+83
0+88
0+92
0+92
TRUE _
ELEVATION°
(ft ',)
293.39
292.70
292.48
288.54
284.05
283.48
282.06
282.65
282.58
282.37
282.24
282.67
282.70
283.08
283.60
283.92
286.28
288.82
289.31
DESCRIPTION
LBHP
GB LBHpb
Top lB
Mid bank
Toe LB
Right water surface
Left water surface
Toe RB
r"i d bank
GB RBHp c
RBHP
-
-
0-132
Attachment Table 0-49.Cross sectional profile data obtained during the
1984 field season at Trapper Side Channel at
transect 1 (RM 91.6).
Date:840904 Gage No:91.6520
Time:1300 Gage Reading:Not obtained
l~SEL:91.98
-TBM:AOF&G Trapper TBM RB 840822 TB~1 elevation:100.00
LBHP:ADF&G TRI LB 840721 LBHP elevation:96.74
RBHP:ADF&G TRI RB 84 07 21 RBHP elevation:99.02
-
STATION
(ft)
0+00
0+00
0+01
0+10
0+20
0+30
0+40
0+50
0+54
0+55
0+64
0+65
0+75
0+76
0+86
0+89
0+90
1+00
1+10
1+18
1+19
1+23.5
TRUE
ELEVATION a
(ft )
96.74
96.2
96.1
96.0
96.2
96.3
96.0
95.6
95.5
95.4
95.0
94.9
94.0
93.9
93.2
93.1
93.0
92.6
92.4
92.2
92.1
91.99
DEseRI PTION
Left bagk head pin
GB LBHP
Left water surface
......a Elevation relative to 100.00 ft.assigned to the study site TBM .
b Ground beside left bank headpin.
0-133
Attachment Table 0-49 (Continued).
0-134
.....
I
Attachment Table 0-50.Cross sectional profile data obtained during the
1984 field season at Trapper Side Channel at
transect 2.
Date:840904
Time:1330
Gage No:91.6S3C
Gage Reading:Not read
\~SEL :92.00
TBM:ADF&G Trapper TBM RB 840822
LBHP:ADF&G TR2 LB 840721
RBHP:ADF&G TR2 RB 84 07 21
TBI~elevation:
LBHP elevation:
RBHP elevation:
100.00
97.21
97.21
-
".;;;,
I
TRUE
STATION ELEVATION a
(ft )(ft)DESCRI PTION
0+00 97.21 Left bagk headpin
0+00 96.7 GB LBHP
0+01 96.6
0+10 96.2
0+20 95.7
0+30 95.9
0+39 96.3
0+40 96.4
0+50 96.5
0+60 96.7
0+70 96.8
0+80 96.8
0+90 96.6
0+99 96.4
1+00 96.3
1+10 96.0
1+20 95.5
1+30 95.1
1+31 95.1
1+37 94.8
1+38 94.7
1+48 94.1
a Elevation relative to 100.00 ft.assigned to the study site T8M.
b Ground beside left bank headpin.
0-135
Attachment Table 0-50 (Continued).
TRUE
STATION ELEVATION """
(ft )(ft )OESeR I PTI ON
1+58 93.6
1+68 93.2
1+78 92.8 ~,
1+79 92.7
1+89 92.4
1+98 92.00 Left water surface
2+08 91.6
2+18 91.1
2+28 90.8
2+38 90.7
2+48 90.6
2+58 90.7
2+67 90.9
91.0 '~2+68
2+76 91.3
2+77 91.4
2+87 91.7 ~
2+93 91.99 Right water surface
·3+03 92.4
3+12 93.2 ~3+13 93.5
3+22 94.8
3+23 94.9
3+33 95.6 ..."
3+43 96.5
3+44 97.21 RBHP
3+44 96.7 GB RBHpa
""'"
a Ground beside right bank headpin.
""'"
,.,..
""'",
D-136 -
Attachment Table 0-51.Cross sectional profile data obtained during the
1984 field season at Trapper Side Channel at
transect 3.
"'"
Date:840904
Time:1400
TBM:ADF&G Trapper TBM RB 840822
LBHP:ADF&G TR3 LB 840721
RBHP:ADF&G TR3 RB 840721
Gage No:91.6$40
Gage Reading:Not read
HSEL:92.18
TBM elevation:100.00
LBHP elevation:98.21
RBHP elevation:98.51
-
-
-
-
STATION
(ft)
0+00
0+00
0+01
0+11
0+18
0+19
0+26
0+27
0+37
0+47
0+52
0+53
0+63
0+73
0+83
0+93
1+03
1+13
1+23
1+33
1+34
1+44
TRUE
ELEVATION a
(ft )
98.21
97.9
98.0
98.2
97.6
97.2
96.5
96.4
96.1
95.8
95.8
95.8
95.7
95.2
94.6
94.2
94.1
93.8
93.5
93.2
93.2
92.8
DESCRI PTION
Left baBk head pin
GB LBHP
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
D-137
Attachment Table 0-51 (Continued).
-
TRUE ftl!I"I"STATION ELEVATION
(ft)(ft)DESCRIPTION
1+54 92.5
1+64 92.3
1+71 92.18 Left water surface -1+78 92.1
1+79 92.0
1+89 91.8
~-1+99 92.8
2+09 92.7
2+19 92.8
2+31 92.0
2+32 92.0
2+38.5 92.17 Right water surface
2+48 92.3
2+51 92.3
2+52 92.2
2+59 92.2
2+60 92.1 ~
2+65 92.1
2+74 92.6
2+75 92.6 -~2+85 93.5
2+94 94.4
2+95 94.5 ~3+05 95.5
3+08 95.8
3+18 96.4
3+28 97.1 -3+38 97.5
3+43 98.0
3+44 98.0 ~
3+54 98.4
3+64 98.6
3+74 98.2
3+75 98.1
3+77.5 98.52 RBHP
3+77 .5 98.2 GB RBHpa
~
a Ground beside right bank headpin.
0-138
-,
Attachment Table 0-52.Cross sectional profile data obtained during the
1984 field season at Trapper Side Channel at
transect 4.
a Elevation relative to 100.00 ft.assigned to the study site TBM.
b Ground beside left bank headpin.
0-139
..."
Attachment Table D-52 (Continued).-
TRUE
STATION ELEVATION
(ft)(ft)DESCRIPTION
~-
1+24 92.3
1+29 92.0
1+39 91.9 '"'"1+49 '91.8
1+57 91.8
1+67 92.3
1+75 92.61 Right water surface -
1+82 92.7
1+83 92.9
1+93 92.9 ~
2+03 93.1
2+13 93.1
2+23 93.4 -2+33 94.6
2+43 95.4
2+53 95.7
2+63 96.2 """2+73 96.2
2+78 96.0
2+79 95.8 ..,
2+82 95.3
2+83 96.64 RBHP
2+83 96.4 GB RBHp a
~
a Ground beside right bank headpin.-
-
D-140
AT T AC H MEN T E
-
~r:;;;"";,;:~;:-;:::~,=,,,,="---------HOOLIGAN SIDE CHRNNEL TR 3
RM 35.2 .
gffi(035.251
-t-
!j
Lo..
61
.:.
;"'"'~
j ~I
I /CONTROLLED
~87,500 S;Q ~113,000 cfs
NO EQUATION DEVELOPED
/~CONTROLLED
~23,500 S.0 ~87,500 cfs
WSEL =10-4.3218 01.0220 +90
r 2 =0.98
NOT CONTROLLED
19,000 ~Q $.23,500 cfs
NO EQUATION DEVELOPED
!lXO-L+-O------------:;;;-------------J10100
111'1[N31CI1 OI5CNRROC RT SLNSHU;f;I I ooocn I
Attachment Figure E-l.WSEL versus mainstem discharge (USGS 15292780)
at Hoal i gan Si de Channel 50 feet upstream of
transect 3 (Q site).
-E-1
tABLES N(Sl SIDE CHANNEL iR 2
RM '36.2.
GAGE:036.2$\
CONTROLLED
< <15,000 -Q -30,000 cfs
WSEl =10 •.2164 Q.2217 +85
r 2 •0.98
to
Attachment Figure E-2.WSEL versus mainstem discharge (USGS 15292780)
at Eagle I s Nest Si de Channel transect 2 (Q
site).
E-2
-
.,----CONTROLLED
38.000 ~Q -=.93.300 cfs
WSEL =10-3.1089 Q.8265 +85
/=0.97
c
~:--I<RO-r-O-SL-Cl.G-H-I-£-A-O-TR-2----=-Dw-------------_
RI'1 36.3
SAJE 036.3S 1
i
I
~NOT CONTROLLED
<<19,600 -Q -38.000 cfs
NO EQUATION DEVELOPED
.-
10 lOO"r'I [N~T(;M 0 [SCHf'I~C rn SiJ'.Oh [t-.E 1\oooen I
1m::
-
Attachment Fi gure E-3.WSEL versus mainstem discharge (USGS 15292780)
at Kroto Slough Si de Channel transect 2 (Q
site).
E-3
-
----MOi CONTROLLED
]11,300 ~Q ~36,600 cfs
~In EQUATION DEVELOPE£)
-
~CONTROLLED
64,900 ~Q 5.113,000 cfs
WSEL =10-3.6221 0.9155 +87
r Z =0.99
CONTROLLED
36,000 ~0 ~65,900 cfs
WSEL =10.3.5577 0.8858 +87
r 2 =0.99
BEAR BAIT SlOE CHANNEL lR 2
RM i2.9
SAlE:012.9S 1
2---------------....,,...-------------,
100
I1fHNSTEI1 OISCHflRGf:AT SlJllSH[~(IOOO~1
lOCO
Attachment Figure E-4.WSEL versus mainstem discharge (USGS 15292780)
at Bear Bait Side Channel transect 2 (Q site).
E-4
r 2,...---------------------------,LASrCHANCE SIDE CHAN~£L tR 2
RN i't.i
!HiE:011.is 1
-
-l
Ww-1~'"-to.
@
+-
~
~
~
,....
i
~---------CONTROLLED
< <56,100 -Q -89,700 cfs
WSEL =10-3.9580 Q.9676 +90
r 2 =0.99
CONTROLLED
< <48.100 -Q -56,100 cfs
NO EQUATION DEVELOPED
100
MI'HN:m:n CrSCHI'I~I'IT SLN5H[~C10aaersl
10lXl
Attachment Figure E-5.WSEL versus mainstem discharge (USGS 15292780)
at Last Chance Side Channel transect 2 (Q
site).
E-5
~:,------------------------------RUSrrc "l[LOERr-£SS SIDE CHFNlEL TR ~
RN 59.S
,GAGE 059.5S I
'-
.J
bI:z
CONTROLLED
< <38,000-0 -71.900 cfs
WSEL =10-1.3294 Q.4409 +90
r 2 =0.98
~---------CONTROLLED
20.400 S Q ~38.000 cis
NO EQUATION DEVELOPED
NOT CONTROLLED
< <17,000 -Q _20,400 cfs
WSEL =10-.8077 0.2959 +90
2r "0.95
:00
Ml''l[~Tr:M 0 r SCttfl~G::flT SUN'3t1 n-lC r:oooers J
llXXl
-
Attachment Figure E-6.WSEL versus mainstem discharge (USGS 15292780)
at Rustic Wilderness Side Channel transect 4
(0 site).
£-6
r
I
r ~!,..------...........---~~-------------....,ISl-A'lO SIOC I>!Af(NEl..TR 1 (Q SITE'
RM 63.2
GRGE:06'3.2S 1
~!<>.-I ...
!!ti
lo.
......~
I •--I -I
~
.-
CONTROLLEr
(/
35.000 !Q ~66,700 cfs
10 -4.1375 01.0071 +89WSEL=
r 2 =0.98
~NOT CONTROLLED
17,80050 Q S.35,000 cfs
NO EQUATION OEVELOPEO
IlXD
-I
Attachment Figure E-7.WSEL versus mainstem discharge (USGS 15292780)
at Island Side Channel transect 1 (Q site).
E-7
~-----_._------~-------------
ISl..At(J SiCE CI-flNNfl.TR 1A
RM 63.2
SAGE:06'3.257
CONTROLLED
!/35,000 ~0 ~66,700 cfs~WSEL =10-4.3011 01.0416 +89
r 2 =0.99
~NOT CONTROLLED
17 .800 ~0 ~35,000 cfs
WSEL =10-1.7670 0°·4824 +89
r 2 =0.99
ltXII
-
-
Attachment Figure E-3.WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel transect
1 A•
E-8
,....
g~"I"""----------------------------[SLR~5 HE CHINNEl.TR 2
.RM 63.2
GAGE:063.252
CONTROLLEDV35,000::;'Q $.66,700 cfs
WSEL =10-4.3432 01.0499 +89
r Z ,=0.99
II
~NOT CONTROLLED
17,800 ~Q ~35,000 c f ,
WSEL =10-1.9108 QO.5134 +89
r 2 =0.99
-
lOll)
Attachment Figure E-9.WSEL versus mainstem discharge (USGS 15292780)
at Island Side channel transect 2.
E-9
s~::-:=":':";::-:==~:-:~---------------_ISL.R~SlOE CHANNa !~3
Rtf 53.2
8R3(06'3.253
-
CONTROLLED
35,GOO 5 0.$66,700 cfs
WSEL ~10-4.4007 Q1.G631 +89
r 2 ~0.99
~NOT CONTROLLED
17 ,ROO S Q ~35,000 cfs
HO EQUATION DEVELOPED -
-
Attachment Figure E-10.WSEL versus mainstem discharge (USGS 15292780)
at Island Side Channel transect 3.
E-10
.-
r
•
t SLAM)5 [[E Q-flNNEl.TR 1:
Rl'1 63.2
GAGE 05:3.254
CONTROLLEDU35.000 =s Q =s.66.700 cfs
WSEL =10-4.5279 Ql.0911 +89
r 2 =0.99
"'---NOT CONTROLLED
17 .800 ~Q ~35.000 cfs
NO EQUATION DEVELOPED
100
MPI INSltM 0 [SCHA~RT SUNSH f Nt:(1 oooers)llXD
r-
I
Attachment Figure E-ll.WSEL versus mainstem discharge (USGS 15292780)
at Island Side Channel transect 4.
E-ll
ISLAHl SrCE CH'iNNo..TR if!
RI'I 63.2
HE:063.2SB
CONTROLLEDU35.o00 ~Q ~66.700 cfs
WSEL =10-4.3758 01.0595 +89
r 2 "0.99
"-NOT CONTROLLED
< <17.800 _Q _35.000 cfs
NO EQUATION DEVELOPED
.ee
!1FlIN51CM OtSCHRftGf:fIT 5UN5t1II-f:(lOOOCFSl
llXll
.-mi
~,
-
-
-
Attachment Figure E-12.WSEL versus mainstem discharge (USGS
15292780)at Island Side Channel
transect 4A.
E-12
"""
r
I
r
I
I
!:!T""':"::"":~'=:=-'~~~~----------------IS"Ar(l SUE Ci'flNNQ..TR S
RM 63.2
GffiE 063.:2SS
I ..··
-I-~...
01
CD
F"
I
+-
~
~
F"
-
-,0
CONTROLLEDV35,000 ~q ~66,700 cfs
WSEL '"10 -4.5414 ql.0948 +89
r 2 '"0.99
~NOT CONTROLLED
<<17,800 _Q -35,000 cfs
WSEL '"100.0199 0°·0913 +89
r 2 '"0.96
IOCD
Attachment Figure E-13.WSEL versus mainstem discharge (USGS 15292780)
at Island Side Channel transect 5.
E-13
...._---_._--------------------------------
S!~r~~~~~~~~.....~"",",,,,~--------------"ISLANJ SlrE CI-flNNO..TRS (Q SrTE)
RM 63.2
13F1GE:063.256
~,
"NOT CONTROLLED
17 ,800 ~0 S.35,000 cfs
WSEL =10-0.0791 0°·1142 +89
r 2 =0.99
g
r...
~-
CONTROLLED
35.000 S.0 ~66.700 cfs
WSEL 2 10-4.4954 01.0873 +89
/=0.98
-
~,
-
lao
t1"IN5TtM OrSCl'tf'lft(;t AT SLMHIt-t:ClOOOCF'S)
IlXIl
...."
-
Attachment Figure E-14.
IX;:t
WSEL versus mainstem discharge (USGS 15292780)
at Island Side Channel transect 6 (Q site).
E-14
.,
r~=0.98
CONTROLLED
22,300 ~0 ~32,000 cfs
WSEL =10-2.1290 0°·6257 +90
CONTROLLEDJ32,000 ~0 ~79,700 cfs
•WSEL =10-1.0817 QO.3929 +90
r 2 =0.98
I~~CONTROLLED
19,600 ~a.~22,300.cfs
NO EQUATION DEVELOPED
\NOT CONT~OLLED
14,700 ~Q .s.19,600 cfs
NO EQUATION DEVELOPED
2!----------~-~-------------....,I¥lINSTEI1 W.B.S.Ct-FlH.TRl (Q SlTE1
RM 7i.1
GAGE:071.iSl
r
I'
I
io lOG
f"lf'l [N51CM 0 t SCI1f1ftGt l'IT5lMli [r-c n ooocn J
IlXD
Attachment Figure E-lS.WSEL versus mainstem discharge (USGS 15292780)
at Mainstem West Bank Side Channel transect 1
(Q site).
E-15
S;r::;:=::-::==:-:=~~-=-"":""'"-----------I"fIIN5TE!'t WESr BANK Slue:CHAN.TR 2
RM 74.1
Gme 011.'\52
~,
"",.
•
CONTROLLED
:12,000 So Q $.66,700 cfs
WSEL =10-0.9484 0°·3653 +90
r 2 =0.99
-CONTROLLED
22 ,300 S.0 5:32,000 cfs
WSEL =1Q-2.5547 0°·7211 +90
/=0.97
-
-
""'"
-
Attachment Figure E-16.WSEL versus mainstem discharge (USGS 15292780)
at Mainstem West Bank Side Channel transect 2.
E-16
-
'F'
I
i
r
I
I
MAWSTEM 4o£Sr BANi<sroe:CHAN.TR 2FI
RM 7~.-t
GAGE 07'\.~SS
NO EQUATION DEVELOPED
r
I
II II
a
IClal
F'"
I
Attachment Figure E-17.WSEL versus mainstem discharge (USGS 15292780)
at Mainstem West "Bank Side Channel transect
2A.
E-17
:!.....----------------------------.,.I'f1INSTEM IoEST BANK 51[£CHAN.TR 3
Ii'M 7'\o.i
RE 07".,,"53
CONTROLLED
/'./32,000 ~a 5.66,700 cfs~WSEL =10-1.1693 0°·4160 +90
r 2 =0.99
-
-
..a
~~-----CONTROLLED
2Z ,300 5.Q 5.32,000 cfs
WSEL =10-2.6141 0°·7368 +90
/=0.92
\00
I1PHt-eTtM OrSCHRRGt flT 5iJ'1:H{~(I oaoCl'"S I
leal
-
.....
-
-
Attachment Figure E-18.WSEL versus mainstem discharge (USGS 15292780)
at Mainstem West Bank Side Channel transect 3.
E-18
5!r:==:-:"=:-::=,,:,,:,:~~~~~------------"ttilNS"IE1'1 ~st BANK SUE C~.TR 3R
RI'l 74.1
GFiGt 074.'\56
"--NOT CONTROLLED
14,700 S Q S 19,600 cfs
WSEL =10-1.4511 00.4642 +90
r 2 =0.98
r
I
CONTROLLED
19,600 ~Q S 32,000 cfs
WSEL =10-2.8455 0°·7934 +90
r 2 =0.95
lDO
MfHN5TEI'1 0 t SCHR~'IT ~lJIl'3H ["I.:C1 oooen 1
Attachment Figure E-19.WSEL versus mainstem discharge (USGS 15292780)
at Mainstem West Bank Side Channel transect
3A.
E-19
Sr=~~~:-=-:~~~~~~~-------------rFlINSTEN WESr BANI("SIOC CHFl't.TR 38
RM 74.'!
GAGE:074.~S1
-
-
-
II NO EQUATION DEVELOPED
IQQ
11"tN5 Tcn 0r 5CI1Ft~f:fiT 5UN511 HI:C1 oooen J
10lXl
-
-
Attachment Figure E-20.WSEL versus mainstem discharge (USGS 15292780)
at Mainstem West Bank Side Channel transect
38.
E-20
-
~!....----------------------------
CONTROLLED
32.000 ~Q5.66.700 cfs
WSEL =10-0.4285 0°·2764 +90
r 2 =0.97
02
~CONTROLLED
24,000 ~0 5.32,OOOcfs
WSEL=10-0.7964 0°·3568 +90
r 2 =0.81
I'lAINSTEM WEST BANK SIDE CHAN.TR i
Rf'O 7o\.i
GAGE:014.~S-t
r
I -t ~
I:!
l..
r ~
~-
~
~
-.0 lOCI)
-
Attachment Figure E-21.WSEL versus mainstem discharge (USGS 15292780)
at Mainstem West Bank Side Channel transect 4.
E-21
::-r-------------------------------.GOOSE 2 5 JDE C.YANNEL TR2 (Q S [TEl
RM 74.8
GAGE 07~.a52
....
l-
\:J....
o
N
+-
CONTROllED
32.000 -=Q ~70.000 cfs
WSEL z 10-.7805 Q.3203 +210
~2 z 0.91
-100
MIUreTtM 0 I SCMRRGt Rr S~t1 t!lf:t I000Cf'51
Attachment Figure E-22.WSEL versus mainstem discharge (USGS 15292780)
at Goose 2 Side Channel transect 2 (Q site).
E-22
CIRCULAR SlOe CHAN.tR I [Q SITE]
RM 7S.J
SAJE 07S.3S1
CONTROLLED
< <36.000 -Q -79.700 cis
WSEL =10-2.8775 Q.7589 +85
,.2 •0.98
;::
~
~
~NOT CONTROLLED
f""'\+Q ~36.000 cis,-
J
!X NO EQUATION DEVELOPED
::z:
~
100
"n[t·,on;11 OlSCttflRGf:fIT Sl1'l5HIl'l:(I000Cf'51
10lX)
-
Attachment Figure E-23.WSEL versus mainstem discharge (USGS 15292780)
at Circular Side Channel transect 1 (0 Site).
E-23
5!!....---------------------------.....CIRCLUlR SIO~CHAhNEL TR ~
RM 75.3
GAGE:075.352
,.."
-
-
CONTROLLED
36,000 S Q S 66,700 cfs
WSEL =10-2.8910 QO.7621 +85
r 2 =0.99
10lD
-
""'"
'""'"
Attachment Figure £-24.WSEL versus mainstem discharge (USGS 15292780)
at Circular Side Channel transect 2.
E-24
1M
'"""
S!:...----------------------------......CIRClLflR SlOt CHANNEl.TR ~
PJ'I 75.3
GFG£:01'5.356
CONTROLLED
36 ,000 ~0 s:66.700 cfs
WSEL =10-2.5572 0°·6921 +85
r 2 :0.99
NOT CONTROLLED
14,700 ~Q 5.36,000 cfs
WSEL =10-0.5670 QO.2528 +85
/:0.99
.-
tC 100
MfI[N5Ttl'f 0 [5CHflf!Gf:"T SUN5HII'f:(lOOO~J
,..,.
Attachment Figure E-25.WSEL versus mainstem discharge (USGS 15292780)
at Circular Side Channel transect 2A.
E-25
-
!:!~----------------------------.CIRCULAR SIDE CHANNEL TR 3
RM 75.3
SffiE 07S.3S::l
-
-L/CONTROLLED
< <36,000 _0 -66,700 cfs
WSEL =10-1.2837 0.4305 +85
r 2 =0.95
"'-NOT CONTROLLED
< <24,000 -0 -36,000 cfs
WSEL =10.3224 0.0745 +85
r 2 =0.70
..
lOll
MR [N~T!:M 0 r ~HflR'Gl:RT SlHil1 [tot:(I aooCl'"S I
10CIl
Attachment Figure E-26.WSEL versus mainstem discharge (USGS 15292780)
at Circular Side Channel transect 3.
E-26
C\RCtJ..Rft SH:iE:CH~~;'lE~~i lQ S1T£l
R!"I 15.3
'3l'!'3£:075.:55"
-
.•
/,~~CONTRQLLED
36,000 S.Q 'So 79,700 cfs
WSEL =10-1.3619 00.4551 +85
r 2 =0.98
~~,aT ca,TRall'D
17,700.:s:Q ~36,000 cfs
WSEl =100.2103 00.10S5 +85
r2.=0.91
-1~O--------------""!IOQ~-------------JIOlIl
/'I"[N5!~110[~lil'l~f'lT 5Uf'e!'lrNe:nooo~1
Attachment Figure E-27.WSEL versus mainstem discharge (USGS 15292780)
at Circular Side Channel transect 4 (0 site).
E-27
:!~~----------------------------..CIRCL1..RR SlOE:CHANNEL TR 5
RM 75.3
GFGE 075.355
-
•-
.r '~CONTROLLED
C/36.000 ~Q ~55.200 cfs
NO EQUATION DEVELOPED
----NOT CONTROLLED
17.700 ~0 ~36.000 cfs
WSEL =10°·2401 0°·0987 +85
r 2 =0.86
NOT CONTROLLED
14,700 ~Q ~17,700 cfs
WSEL =10-2.0432 0°·6359 +85
r 2 =0.99
IOC
M~[N~lCM 0 [XHftRGt RT Si.l'eH [Nf:{I QOO~J
10m
-
-
~\
"""
Attachment Figure E-28.WSEL versus mainstem discharge (USGS
15292780)at Circular Side Channel
transect 5.
E-28
-
5!r;:C~IR:C~UL:-:A:R~S~I;;;O;£-;C:::H":r-u:~L~HE;i=I:G:-----------------
RI'1 7S.J
SRGt 0i'5.:!i3
,.,."
CONTROLLED
36,000 $Q ~70,100 cfs
WSEL =10-8.0227 01.7530 +90
r 2 =0.99
10lXl
Attachment Figure E-29.WSEL versus mainstem discharge (USGS 15292780)
at Circular Side Channel 'head.
E-29
SflINA 5 H£CtfltNE:L tR 1
RM 79.8
GAGt:079.851
CONTROllED
V38,OOO:So Q ~56,700 cfs
WSEL =10-4.6960 Q1.1483 +85
r 2 =0.99
~NOT CONTROLLED
15 ,000 ~0 S.38.000 c f s
NO EQUATION DEVELOPED
-
-
-
-
-
io leo
l'I'UN5TtM 0 [SCHflRGC f\T SlJ'I'3h I It:(lOOOen)
10lXl
....
Attachment Figure E-30.WSEL versus mainstem discharge (USGS 15292780)
at Sauna Side Channel transect 1.
E-30
..,."
"""
r-
I
~r:~~~~~""'~"""'--------------------SRJNA S HE Ctt'tlN(L TR 2 (Q S I 1'E I
Rt1 79.8
SA'lE 079.852
-
%..1"0------CONTROLLED
< <38,000 _Q _67,100 cfs
WSEL =10-3.7806 0.9554 +85
r 2 '"0.93
~"T CO.TROLLEO
< <15,000 _0 _38,000 cfs
NO EQUATION DEVELOPED
lOCO100
MF1£N51[;M 0 [5CHft~GE AT 5tNSH [l'f:rt oooers J
~--_~--..J
-"'lC
Attachment Figure E-31.WSEL versus mainstem discharge (USGS 15292780)
at Sauna Side Channel transect 2 (Q site).
E-31
SRJNR S lDE Oft4NEL !R :5
RI'1 79.8
GAGE:079.8SJ
..
NO EQUATION DEVELOPED
.:
lOll)
-
"""I
-
-
-
Attachment Figure E-32.WSEL versus mainstem discharge (USGS 15292780)
at Sauna Side Channel transect 3.
E-32
..-
I
gr:==-==",::,,:==:-:~~--------------SRJNFI SI CE CtAlNEL TR 4
RI"'I 79~a
GAGe 079.851
I
I
LO
-
CONTROLLED
V38,aoo 5:0 ~56.7(10 cfs
WSEl =10-3.5984 0°·9172 +85
r 2 =0.98
~NOT CONTROLlE,
15.000 $.Q $.38.000 cfs
NO EQUATION DEVELOPED
l~
Attachment Figure E-33.WSEL versus mainstem discharge (USGS 15292780)
at Sauna Side Channel transect 4.
E-33
-
-
:!,----------------------------...
St.Ct<ER SHE ~NNEL TR :2 (G1 5 lTE:]
RN Si.S
GffJ[oe~.SS2
.....
""'"
""'"
CONTROLLED
76.200 ~Q ~104.000 cfs
WSEl =10-2.7405 Q.7152 +260
r 2 =0.99
--------CONTROLLED
29.000 '5:Q 5 76.200 cfs
WSEL =10-5.5752 Q1.2980 +260
r 2 =0.99
~NOT CONTROLLED
22.700 S Q 5 29.000 cfs
NO EQUATION DEVELOPED
tOlD
-
Attachment Figure E-34.WSEL versus mainstem discharge (USGS 15292780)
at Sucker Side Channel transect 2 (Q site).
E-34
,-
-
Sl..CKER SItE Q-flNNEl..TR 5
Rf1 Bot.S
GAlt til.,.sss
CONTROLLED
29.000 S Q ~55.400 cfs
WSEl •10-2.2689 Q.6053 +260
r 2 •0.98
NOT CONTROLLED
< <22.100 _Q _29.000 cfs
NO EQUATION DEVELOPED
-
-
CONTROLLED
55,400 ~Q ~104,000 cfs
WSEL :10-3.7534 Q.9201 +260
r 2 :0.99
100
"t1 I~lf;n 0 [SCNflRGt rrr 511"5H I hf:f1 OOOCf"S I
lam
Attachment Figure E-35.WSEL versus mainstem discharge (USGS 15292780)
at Sucker Side Channel transect 5 (Q site).
E-35
~!......--------------------------..-
BEAVER 0""'SLWGH TR \fQ 511::)
Rt1 86.3
Gf'GE 086.351
r BACKWATER CONTROlLED
35,000 ~Q ~76,200 cfs
NO EQUATION DEVELOPED
-
..
a ~a
'---NOT CONTROLLED
.<<"17.400 _Q -24,000 cfs
NO EQUATION DEVELOPED
Attachment Figure E-36.WSEL versus mainstem discharge (USGS 15292780)
at Beaver Dam Slough transect 1 (0 site).
E-36
....
--
-
....
~...-----------------------------.,
CONTROLLEDJ76.200 ~Q ~104.000 cfs
WSEL =10-1.6437 Q.4999 +90
r 2 =0.97
a~CONTROLLED
47 .600 ~Q ~76.200 cfs
WSEL 2 10-5.6434 01.3181 +90
r 2
2 0.97
D
"
[£Rvt:R DAM 5[::£Crf'N.TR 4 fQ StTEJ
R!'1 86.J
GAGE 086.35'\
-
.-
---CCOKT1lOlLED
17,000.5.0 5.47.600 cfs
WSEL =10-·10B5 0.1255 +90
r 2 =0.97
100
MfUN51Cl1 OtSCHRRGt 1'T 5~H[tt:(IOCCenl
10lXl
Attachment Figure E-37.WSEL versus mainstem discharge (USGS 15292780)
at Beaver Dam Side Channel transect 4 (Q
site).
E-37
:::,....---------------------------.,
BEAVER OfJ'l HOl)
RM 86.3
GAG£C8e.3H~
/CONTROLLED
47.600 5.Q 5.70.000 cfs
WSEL =10-3.9827 Q.9955 +90
r 2 =0.99
100
M'HN51~11 O[~l'1"~/'IT :SLMHC'C {IOOO~J
IlXD
-
Attachment Figure E-38.WSEL versus mainstem discharge (USGS
15292780)at Beaver Dam Side Channel
Head.
E-38
1"'"
-,...-...
~
t...
B
•-
..J
~
r
.-
-
~!T""~~~~~~~~~-----....,
S!JNStT sti:£ClifINNEl.TR a
Rl"I 86.9
~E 086.950
CONTROLLED
32,000 5:Q ~66,700 cfs
WSEL =10-4.148201.0297 +90
r 2 =0.74
""tc ICOn"[N51tM 0 rSCH"~RT ~1J-l51i Ct..t:(I ooacn 1 10Cll
Attachment Figure E-39.WSEL versus mainstem discharge (USGS 15292780)
at Sunset Side Channel transect O.
E-39
5!~r"~~~~~..--~.......---....-nr--------------..5l.IIscr SIrE OfINNEl.!R 1 [0.SI'!El
RI"l 86.9
GFGE aa6.9S1
I ..---~CONTROLLED
32,000 ~Q ~104,000 cfs
WSEL =10-3.7766 0°·9533 +90
r 2 =0.99
-
-
..NOT CONTROLLED
17,400 $.Q So 32,000 cfs
WSEL =100.4493 QO.0155 +90
/=0.57 -
-
:~
MP'lIN~Ttl'1 OISCIiAm;t flT 5lJ11SH[NF;OOOOCM).
lor:n
Attachment Figure E-40.WSEL versus mainstem discharge (USGS 15292780)
at Sunset Side Channel transect 1 (Q site).
E-40
-
:=:~~~~~~~~------------SUNSET S!OE CHfI~INEl..TR 2
RI"l 86.S
SAGE:O8S,952
U CONTROLLED
32.000 ~Q ~57.800 cfs
WSEL =100.3170 00.0933 +90
r Z =0.02
-
-
+
NOT CONTROLLED
17,400 ~Q ~32,000 cfs
WSEL =100.5732 00.0017 +90
r Z =0.02
100
I1flIN5TtM OtXHfl~rrr 5lMHIlIoE C1000~1
Attachment Figure E-41.WSEL versus mainstem discharge (USGS 15292780)
at Sunset Side Channel transect 2.
E-41
s .....-----------------------------,SUlscr S [OE O1A~INa..!R J
RM 86.9
GAGE 086.953
~/l'----CONTROLLED
32 ,000 ~Q ~66,700 cfs
WSEL =10-2.6801 qO.7278 +90
r 2 =0.96
-
-
-
It..."'-.
~---NOT CONTROLLED
16,500 ~G S 32,000 ds
WSEL =100.227R qO.D814 +90
/=0.61
100
MI'l IN5TEM D15CH~ftGr:I'lT 5UN~HI ~(l OOOCn)
lace
-
...
-
-
Attachment Figure E-42.WSEL versus mainstem discharge (USGS 15292780)
at Sunset Side channel transect 3.
E-42
-
"'"
g1"""-~~~~-~""'''''--------------------,SU~SET 510£O-tliNNEL TR "t
F!M 86.9
GAGE caS.9S1-
-~
Q
to.
~
F +-
..J
~
CONTROLLED
32,000 ~Q ~66,700cfs
WSEL =10-2.5875 0°·7092 +90
r 2 =0.97
---------NOT CONTROLLED
17,800 ~Q So 32,000 cfs
WSEL =10 0 •094 ?QO.1221 +90
r 2 =0.6'
100
MFlIN'3!CM OrSCHf'lROC AT 5\J115HH-t;r 1000~1 10lJl
.....Attachment Figure E-43.WSEL versus mainstem discharge (USGS 15292780)
at Sunset Side Channel transect 4.
E-43
-
"""
5!r~~~~~....~""'~-------------------SL:-lscr StOE CHRN~El.rR 5
RH 66.9
GFlGf:Ga6.9SS
-
-
.....
/
__--CONTROLLED
32,000 ~0 ~66,700 cfs
WSEL =10-1.2739 0°·4427 +90
/=0.96
••00 c~'OT ,ONTROLLED
16,500 ~Q ~32.000 cfs
WSEL =10°·6534 00.0056 +90
r 2 =0.25
-g
lo.a
IceD
Attachment Figure E-44.WSEL versus mainstem discharge (USGS 15292780)
at Sunset Side Channel transect 5.
E-44
,~
-,
~5E:T SlOE Q-If!NNEl.1'R 6
liM e5.9
GFGE:086.956
CONTROLLED
32,000 ~Q ~66,700 cfs
WSEL =10 -1.1890 0°·4242 +90
,..2 =0.97
q
..C NOT CONTROLLED
16,500 .s Q ~32,000 cfs
WSEL =100.5456 gO.030R +90
r 2 =0.61
100
MfHNSTf:;M 0I SCHFlRt;t RT S!.JIISHI Nf:tI ococrs I
lOCI)
-Attachment Figure E-45.WSEL versus mainstem discharge (USGS 15292780)
at Sunset Side Channel transect 6.
E-45
:!,....--------------------------...WR(S(SiDE:CH"lNNEL TR1 (Q S{TEl
RM 87.0
GFlGE 087.05~.
"",.
..
CONTROLLED
36.000~0 ~104.000 cfs
WSEl z 10-2.8383 0.7558 +90
r 2 •0.98
JOC
MfHNS!tM 0 [5tHflRGE I'IT 51J'et1 [t.f:(I 000Cf"51
10lZl
_.
Attachment Figure E-46.WSEL versus mainstem discharge (USGS 15292780)
at Sunrise Side Channel transect 4 (0 site).
E-46
5!~T"""---------------------------_B(RCii SLCl.l3H I-E:AO
RM 88.~
GAil:008.'1117
""'"I
i'"
I
J CONTROLLED
54,100 ~Q ~72 ,000 cfs
WSEL =10-2.8786 Q.7593 +305
r 2 =f1.98
10 ICC
~fI![NSTE:M OISCHfU~G~fiT SlJ'.JSH[~'~(IOCaCf'~l
-
Attachment Figure E-47.WSEL versus main~tem discharge (USGS 15292780)
at Birch Creek Slough head.
E-47
~.....---------------------------.....1'RF!PPER CREEl<SIC TR 1
~91.5
GAGE 091.652 -
...
o
o
'-t_c----CorHROLLEO
44,000 ~0 ~66,/00 cfs
WSEL =10-5.0573 01.1653 +90
r 2 =0.95
-
~T CONTROLLED
15.700 ~Q ~44,000 cfs
WSEL =10°·0117 0°.0645 +90
r 2 =0.90
10lD -
~\
Attachment Figure E-48.WSEL versus mainstem discharge (USGS 15292780)
at Trapper Creek Side Channel transect 1.
E-48
-
-
fRAPPER CREEl(SIC TR 2
RN 91.6
!3fl!;E:09 t .653
~CONTROLLED
44,000 ~0 ~66,700 cfs
WSEL ~10-6.6532 01.4946 +90
r 2 =0.96
--NOT CONTROLLED
15,700 ~Q ~44,000 cfs
WSEL =100.0819 00.0474 +90
r 2 =0.93
LOO
t'l1'UN5TE:M OrSOlflRGE fiT SI.fo\I5I1It<(lOOOCr"S)
10lXl
Attachment Figure E-49.WSEL versus mainstem discharge (USGS 15292780)
at Trapper Creek Side Channel transect 2.
E-49
TRAPPER CREEK SIC LR 3
Rl"I 91.6
GAGE 091.6S-t
~CONTROLLED
44,000 ~0 ~66,700 cfs
WSEL =10-6.8814 01.5521 +90
D
r 2 =0.98
-~NOT CONTROLLED
15,000 S.0 S.44,000 cfs
WSEL =10°·3023 0°·0072 +90
r 2 =0.05
lee;
"ftIN5TEM OISCHRRG[RT SL~Ht~(IOOQ~)IlXD
-
-
"""
-
-
Attachment Figure E-50.WSEL versus mainstem discharge (USGS 15292780)
at Trapper Creek Side Channel transect 3.
E-50
'~
:::r;==:-::=~=-::=-:-;-;::-:,,:=:---------------...fRFIPPER CREEl(sic TR 1:[Q SITE)
RM 91.0
GFlGE:09].651
....
1
I
,....,
•
•
~CONTROllED
44.0oo.s 0 ~93,300 cfs
WSEL =10-4.945501.1565 +90
r 2 =0.95
~NOT CONTROLLED
15,000 ~Q ~44,000 cfs
WSEL =100.0801 00.0756 +90
r 2 =0.83
laD
M'UNS1C1 Ot SCHf"tGt /'IT SUN5HUlf:U OOOC1'"5 J
IOCD
Attachment Figure E-51.WSEL versus mainstem discharge (USGS 15292780)
at Trapper Creek Side Channel transect 4 (Q
site)•
E-51