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ALASKA DEPARTMENT OF FISH AND GAME
SUSITNA HYDRO AQUATIC STUDIES REPORT SERIES
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ALASKA DEPARTMENT OF FISH AND GAME
SUSITNA HYDRO AQUATIC STUDIES
REPORT NO.3
AQUATIC HABITAT AND INSTREAM FLOW
INVESTIGATIONS (MAY-OCTOBER 1983)
Chapter 2:Channel Geometry Investigations
Edited by:
Christopher C.Estes
and
Douglas S.Vincent-Lang
Prepared for:
ALASKA POWER AUTHORITY
334 W.FIFTH AVE.
ANCHORAGE,ALASKA 99501
PREFACE
This report is one of a series of reports prepared for the Alaska Power
Authority (APA)by the Alaska Department of Fish and Game (ADF&G)to
provide information to be used in evaluating the feasibility of the
proposed Susitna Hydroelectric Project.The ADF&G Susitna Hydro Aquatic
Studies program was initiated in November 1980.The five year study
program was divided into three study sections:Adult Anadromous Fish
Studies (AA),Resident and Juvenile Anadromous Studies (RJ),and Aquatic
Habitat and Instream Flow Studies (AH).Reports prepared by the ADF&G
prior to 1983 on this subject are available from the APA.
The information in this report summarizes the findings of the 1983 open
water field season investigations.Beginning with the 1983 reports,all
reports were sequentially numbered as part of the Alaska Department of
Fish and Game Susitna Hydro Aquatic Studies Report Series.
TITLES IN THE 1983 SERIES
Report
Number Title
Publication
Date
1
2
Adult Anadromous Fi sh Investi gati ons:April 1984
May -October 1983
Resident and Juvenile Anadromous Fish July 1984
Investigations:May -October 1983
3
4
Aquatic Habitat and Instream Flow
Investigations:May -October 1983
Access and Transmission Corridor Aquatic
Investigations:May -October 1983
1984
1984
"...
This report,"Aquatic Habitat and Instream Flow 'Investigations"is
divided into two parts.Part I,the "Hydrologic and Water Quality
Investigations ll
,is a compilation of the physical and chemical data
collected by th ADF&G Su Hydro Aquatic Studies team during 1983.These
data are arranged by 'individual variables and geographic location for
ease of access to user agencies.The combined data set represents the
available physical habitat of the study area within the Cook Inlet to
Oshetna River reach of the Susitna River.Part II,the "Adult Anadro-
mous Fish Habitat Investigations",describes the subset of available
habitat compiled in Part 1 that is util ized by adult anadromous fish
studied in the middle and lower Susitna River (Cook Inlet to Devil
Canyon)study area.The studies primarily emphasize the utilization of
side slough and side channel habitats of the middle reach of the Susitna
River for spawning (Figure A).It represents the first stage of
development for an instream flow relationships analysis report which
will be prepared by E.W.Trihey and Associates.
MIDDLE REACH
ADF 8G FIELD CAMPS
OVERALL STUDY AREA
Ell
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/Gold Creek Co
-"/(RM 136'/--'~11 .
I Cuny Com
(RM 120.6\//J/i·~a'k(:~n~oiri)''-
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MAP AREA
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miles
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Figure A.Susitna River drainage basin.
J _I ,I ~I I ~I ,Jl g ]I J fl
CONTENTS OF REPORT NO.3
Part One
Chapter
1 Stage and Discharge Investigations.
2 Channel Geometry Investigations.
3 Continuous Water Temperature Investigations.
4 Water Quality Investigations.
Part Two
Chapter
5 Eulachon Spawning in the Lower Susitna River.
7
-i
.-
6 An Evaluation of Passage Conditions for Adult Salmon in
Sloughs and Side Channels of the Middle Susitna River.
An Evaluation of Chum and Sockeye Salmon Spawning Habitat in
Sloughs and Side Channels of the Middle Susitna River.
a An Evaluation of Salmon Spawning Habitat in Selected Tributary
Mouth Habitats of the Middle Susitna River.
9 Habitat Suitability Criteria for Chinook,Coho,and Pink
Salmon Spawning.
10 The Effectiveness of Infrared Thermal Imagery Techniques for
Detecti ng Upwell ing Groundwater.
Questions concerning this and prior reports should be directed to:
Alaska Power Authority
334 W.5th Avenue
Anchorage,Alaska 99501
Telephone (907)276-0001
Channel Geometry Investigations
of the Susitna River Basin
1984 Report No.3,Chapter 2
by:Tim Quane,Isaac Queral,Theresa Keklak,and Don Seagren,
Alaska Department of Fish and Game
Susitna Hydro Aquatic Studies
2207 Spenard Rd.
Anchorage,Alaska 99503
ABSTRACT
Channel geometry data have been collected by the Alaska Department of
Fish and Game Susitna Hydro Aquatic Studies Feasibility Study Team since
1982 at twenty-one side channel,upland and side slough and tr'ibutary
habitats located in the Talkeetna to Devil Canyon reach of the Susitna
River.These data have been used to describe the channel character-
istics of these study sites.Thalweg profiles,depicting the overall
gradient,extent of backwater,and substrate composition of the site,
were constructed from the data for four side channel and thirteen upland
and side sloughs.Cross section profiles,illustrating the cross
sectional channel characteristics and wetted surface area as a response
to stage changes,were also developed for selected stage/discharge
monitoring stations within these study sites.These data are used by
other project biologists and engineers to evaluate the impact of hydro-
electric development on the Susitna River.
i
TABLE OF CONTENTS
AB STRACT oil••••••••••••••••D •••II •••••••••"III III!I ••0 ••III " 0 ••'""1£•••III •-0 • • ••i
TABLE OF CONTENTS III!I ••••••••••••••••••••••$••••III!I •••••••••$..ii
LIST OF FIGURES .••.•••.•.•..••••..•...•.•clil.......................iv
L1ST OF TABLES .••.•iii 0 ••••e "••••••III • • • • • • • •••vi i;
LIST OF APPENDIX TABL,ES ....•..••..•.•....•....•.O ••C1 •••••••••••••x
1.0 INTRODUCTION ..•...•..•..•..•....•..•..••..••..•0 ••••••••••ill -0 1
1.2 Objectives liICI.1
r
1.1 Background e •••••••
1.2.1 Thalweg Profile Study ......•.......•...••.......
1
1
"...
1.2.2 Cross Sectional Profile Studies.................1
2.0 METHODS·•.•••••••••••••••••••••••••••••••.•••••••••••••••..••3
2.1 Site Selection 0-..................3
2.1.1 Thalweg Profile Surveys.........................3
2.1.2 Cross Sectional Profile Surveys.................3
2.2 Field Data Collection..................................3
2.2.1 Thalweg Data Collection Procedures..............3
2.3
2.2.2 Cross Sectional Data Collection Procedures .
Analytical Approach .
3
7
2.3.1 Thalweg Profile Study Analysis..................7
2.3.2 Cross Sectional Profile Study Analysis.7
3.0 RESULTS...•..•........•......•...•....•..9
3.1 Side Channel Habitats .........•..•.......•............9
3.1.1 Mainstem 2 Side Channel (RM 114.4)..............9
3.1.2 Side Channel 10 (RM 133.8)..•..........•....•...9
3.1.3 Upper Side Channel 11 (RM 136.2)......•...14
ii
3.1.4 Side Channel 21 (RM 140.6)......................21
3.2 Side Slough Habitats...................................21
3.2.1 Whiskers Creek Side Slough (RM 101.2)...........21
3.2.2 Side Slough 8 (RM 113.6)....•.•.•....•....•.....25
3.2.3 Side Slough 8A (RM 126.2).......................25
3.2.4 Side Slough 9 (RM 128.3)........................32
3.2.5 Side Slough 9A (RM 133.2)......32
3.2.6 Side Slough 11 (RM 135.7).................•..•..40
3.2.7 Side Sloughs 16/168 (RM 137.7)..................40
3.2.8 Side Slough 20 (RM 140.2)..........•............46
3.2.9 Side Slough 21 (RM 141.8)46
3.2.10 Side Slough 22 (RM 144.2)......................53
3.3 Upland Slough Habitats.................................53
3.3.1 Upland Slough 6A (RM 112.3).....................59
3.3.2 Upland Slough 10 (RM 133.8)...59
3.3.3 Upland Slough 19 (RM 140.0).64
3.4 Tributary Habitats.....................................64
3.4.1 Fourth of July Creek (RM 131.1).................64
3.4.2 Gold Creek (RM 136.8)...........................64
3.4.3 Indian River (RM 138.6)...64
3.4.4 Portage Creek (RM 148.8)........................71
3.5 General Results ...•..••..••.•••••..•..••......•••.•.•••71.
4.0 DISCUSSION ...•ill.............................................75
5.a GlO SSARY ~• ••••. •• ••••••••••• •••••• ••• ••• ••• ••• •76
6.0 CONTRIBUTORS................................................79·
7.0 ACKNOWLEDGEMENTS.•. •. ••••••••••••••••••. •. •. •. . •••. ••. •. . . ••80
8.0 LITERATURE CITED Ill..81
9.0 APPENDICES .......•..•..........so.....82
iii
~-
-
-
-
LIST OF FIGURES
Figure No.
5
2-1
2-2
Locations of channel geometry study sites in side
channel~slough~and tributary habitats of the
Susitna River during the 1983 open water season •.......••...
Streambed (thalweg)profile of Mainstem 2 Side
Channel (RM 114.4)and water surface elevations
corresponding to various mainstem Susitna River
discharges at Gold Creek (USGS gaging station
1529200)Q G 10
2-6
2-7
2-3 Cross sectional profiles of the staff gage sites
in Mainstem 2 Side Channel (RM 114.4)and water
surface elevations corresponding to various
mainstem Susitna River discharges at Gold Creek
(USGS gaging station 1529200)..................•••....•..•.•11
2-4 Streambed (thalweg)profile of Side Channel 10 (RM
133.8)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................15
2-5 Cross sectional profiles of the staff gage sites
in Side Channel 10 (RM 133.8)and water surface
elevations correspondi ng to various rna i nstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................17
Streambed (thalweg)profile of Upper Side Channel
11 (RM 136.2)and water surface elevations
corresponding to various rnainstem Susitna River
discharges at Gold Creek (USGS gaging station
1529200). ....... .... .... ... ... . . . . . ... ... .... ....... . . . ... ... . . . ... ...... .....18
Cross sectional profiles of the staff gage sites
in Upper Side Channel 11 (RM 136.2)and water
surface elevations corresponding to various
mainstem Susitna River discharges at Gold Creek
(USGS gagings station 1529200)..............................20
2-8 Streambed (thalweg)profile of Side Channel 21 (RM
140.6)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................22
2-9 Cross sectional profiles of the staff gage sites
in Side Channel 21 (RM 140.6)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................24
iv
LIST OF FIGURES (Continued)
Figure No.
2-10 Streambed (thalweg)profile of Whiskers Creek Side
Slough (RM 101.2)and water surface elevations
correspondi ng to va ri ous rna i nstem Sus itna Ri ver
discharges at Gold Creek (USGS gaging station
1529200 )$•••II •••II Cl C •••"C ill •••II liI 'II ••••••••••••••••••••••••II ••III •26
2-11 Cross sectional profiles of the staff gage sites
in Whiskers Creek Side Slough (RM 101.2)and water
surface elevations corresponding to various
mainstem Susitna River discharges at Gold Creek
(USGS gaging station 1529200)...............................28
2-12 Cross sectional profiles of the staff gage sites
in Side Slough 8 (RM 113.6)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200)............•.........•....••.....•..30
2-13 Streambed (thalweg)profile of Side Slough 8A (RI\1
125.3)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................31
2-14 Cross sectional profiles of the staff gage sites
in Side Slough 8A (RM 125.3)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................35
2-15 Streambed (thalweg)profile of Side Slough 9 (RM
128.3)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................37
2-16 Cross sectional profiles of the staff gage sites
in Side Slough 9 (RM 128.3)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................39
2-17 Streambed (thalweg)profile of Side Slough 9A (RM
133.2)and surveyed water surface elevation
corresponding to a mainstem Susitna River dis-
charges of 9,400 cfs at Creek (USGS gaging station
1529200). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . .41
2-18 Streambed (thalweg)profile of Side Slough 11 (RM
135.7)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................42
v
-
--
-
-
Ipq
"..,
LIST OF FIGURES (Continued)
Figure No..
2-19 Cross sectional profiles of the staff gage sites
in Si de Slough 11 (RM 135.7)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................44
2-20 Streambed (thalweg)profile of Side Slough 16/16B
(RM 137.7)and surveyed water surface elevation
corresponding to a mainstem Susitna River
discharge of 16,500 cfs at Gold Creek (USGS gaging
station 1529200).••.•.••.••••~..••..••..•o........•.....e...45
2-21 Cross sectional profiles of the staff gage sites
in Side Slough 16B (RM 137.9)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................48
2-22 Streambed (thalweg)profile of Side Slough 20 (RM
140.2)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................49
2-23 Cross sectional profiles of the staff gage sites
in Side Slough 20 (RM 140.2)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200)..................................•..51
2-24 Streambed (thalweg)profile of Side Slough 21 (RM
141.8)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................52
2-25 Cross secti ana 1 profi 1es of the staff gage sites
in Side Slough 21 (RM 141.8)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................55
2-26 Streambed (thalweg)profile of Side Slough 22 (RM
144.2)and water surface elevations corresponding
to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200)....................56
2-27 Cross sectional profiles of the staff gage sites
in Side Slough 22 (RM 144.2)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................58
vi
LIST OF FIGURES (Continued)
Figure No.
2-28 Streambed (thalweg)profile of Upland Slough 6A
(RM 112.3)and water surface elevations
corresponding to various mainstem Susitna River
discharges at Gold Creek (USGS gaging station
1529200)0 ••ollI •••60
2-29 Cross sectional profiles of the staff gage sites
in Upland Slough 6A (RM 112.3)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................62
2-30 Streambed (thalweg)profile of Upland Slough 10
(RM 133.8)and surveyed water surface elevation
corresponding to a mainstem Susitna River
discharge of 12,200 cfs at Gold Creek (USGS gaging
station 15292000)0.......63
2-31 Streambed (thalweg)profile of Upland Slough 19
(RM 140.0)and water surface elevations
corresponding to various mainstem Susitna River
discharges at Gold Creek (USGS gaging station
1529200)..0 •••••••••••••••••••••••••••••••••.•••••••••••-e ••••65
2-32 Cross sectional profiles of the staff gage sites
in Upland Slough 19 (RM 140.0)and water surface
elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS
gaging station 1529200).....................................67
2-33 Cross sectional profile of the discharge station
in Fourth of July Creek (RM 131.1)and water
surface elevations corresponding to various
streamflows 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 68
2-34 Cross sectional profile of the discharge station
in Gold Creek (RM 136.8)and water surface
elevations corresponding to various streamflows.............69
2-35 Cross sectional profile of the discharge station
in Indian River (RM 138.6)and water surface
elevations corresponding to various streamflows.............70
2-36 Cross sectional profile of the discharge station
in Portage Creek (RM 148.8)and water surface
elevations corresponding to various streamflows.............72
2-37 Gradient profile of the Middle Reach of the
Susitna River (Talkeetna to Portage Creek}..................73
vii
-
LIST OF TABLES
Table No.
....
....
1"'"
I
f''''
.-
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
Channel geometry study sites in side channel
and slough (upland and side)habitats of the
Susitna River during the 1983 open water season •••..........
Substrate ClaSSiiication system used during the
1983 open water eason ..•.••...••.•...•.......•....•..•.....
Cross sectional profile sites in Mainstem 2
Side Channel (RM 114.4)0$••••0 •••••••••••0
I
Cross sectional brofile sites in Side Channel 10
(RM 133.8)...•.........................•..••.0 ••••••••••••••
Cross sectional profile sites in Upper Side
Channel 11 (RM 136.2)110 •••••••••••••••••••••Ill.
Cross sectional profile sites in Side Channel 21
(RM 140.·6)...•..•........•..•..........•'III •••
Cross sectional profile sites in Whiskers Creek
Side Slough (RM 101.2)..•..•.......•.......•.......•.......
Cross sectional profile sites in Side Slough 8 (RM
113.6).
4
6
13
16
19
23
27
29
2-9 Cross sectional profile sites in Side Slough 8A
{RM 125.3}•.....••••....•...••.......•••..•....•.•.....e.e..33
2-10 Cross sectional profile sites in Side Slough 9 {RM
128.3}38
2-11 Cross sectional profile sites in Side Slough 11
('RM 135.7),_... . . . . . . . . . . . . . . . . . . . . . . .43
"...
2-12 Cross sectional profile sites in Side Slough 168
{RM 137.9}.
2-13 Cross sectional profile sites in Side Slough 20
(RM 140.2).
47
50
2-14 Cross sectional profile sites in Side Slough 21
(RM 141.8)54
2-15 Cross sectional profile sites in Side Slough 22
(RM 144.2)57
2-16 Cross sectional profile sites in Upland Slough 6A
(RM 112.3)61
2-17 Cross sectional profile sites in Upland Slough 19
(RM 140.0)66
viii
LIST OF TABLES
Table No.
2-18 Summary of site gradients,adjacent mainstem
Susitna River gradients,and backwater areas in
side channels and sloughs (side and upland)
corresponding to mainstem discharges,1983 .••....•..•...••..
ix
74
-
-
....
"""',
.....
-,
LIST OF APPENDIX A TABLES
Table Page
2-A-l Data used to develop the streambed (thalweg)
profile of Mainstem 2,Side Channel -Northwest
(Left)Channel (RM 114.4),1983 ••...•..••••.•.....••2-A-l
,~.,2-A ..2 Data used to develop the streambed (thalweg)'I
profile of Mainstem 2 Side Channel ..Northeast
(right)Channel (RM 114.4),1983 .••.•...•....•...•••2-A ..3
2-A-3 Data used to develop the streambed (thalweg)
profile of Side Channel 10 (RM 133.8),1983 .•.....••2-A-8
2-A-4 Data used to develop the streambed (thalweg)
profile of Upper Side Channel 11 (RM 136.2),
1983..,.~•"........•.....•..........•.....0 ••••••e " •oU •'Ii 2-A-12
2-A ..5 Data used to develop the streambed (thalweg)
profile of Side Channel 21 (RM 140.6),1982 .........2-A-14
2-A ..6 Data used to develop the streambed (thalweg)
profile of Whiskers Creek Side Slough (RM
101.2),1983 ................................,,0.011 ••••2-A-19-2..A..7 Data used to develop the streambed (thalweg)
profile of Side Slo~gh 8A (RM 125.3),1982 ..........2-A ..21
2-A-8 Data used to develop the streambed (thalweg)
profile of Side Slough 9 (RM 128.3),1982 ........•..2-A-26
2-A-9 Data used to develop the streambed (thalweg)
profile of Side Slough 9A (RM 128.3),1983 ..........2-A-29
2-A-I0 Data used to develop the streambed (thalweg)
profile of Side Slough 11 (RM 135.3),1982 ....•.•...2..A-32
'"'"2-A-ll Data used to develop the streambed (thalweg)
profile of Side Slough 16/168 (RM 137.7),1983 •••..•2-A-35
2-A-12 Data used to develop the streambed (thalweg)
profile of Side Slough 20 (RM 140.1),1983 .•.•..•...2-A-39
2-A ..13 Data used to develop the streambed (thalweg)
profile of Side Slough 21 (RM 141.8),1982 ...•......2-A-43
2-A-14 Data used to develop the streambed (thalweg)
profile of Side Slough 22 (RM 144.3),1983 ..........2-A ..45
2-A-15 Data used to develop the streambed (thalweg)
profile of Upland Slough 6A (RM 112.3),1983 ........2-A-48
x
LIST OF APPENDIX A TABLES (Continued)
Table
2-A-16
2-A-17
2-A-18
Data used to develop the streambed (thalweg)
profile of Upland Slough 10 -Northwest (left)
Channel (RM 133.8),1983 .••.•..•••.••.•.•••••...••••
Data used to develop the streambed (thalweg)
profile of Upland Slough 10 -Northeast (right)
Channel (RM 133.8),1983 •.••..•....••.•••.........•.
Data used to develop the streambed (thalweg)
profile of Upland Slough 19 (RM 140.0),1983 .
xi
2-A-50
2-A-53
2-A-57
.-
.....
-
LIST OF APPENDIX B TABLES
Table
2-B-1
2-B-2
2-B-3
2-8-4
2-B-5
2-B-6
2-8-7
2-8-8
2-B-9
2-B-1O
2-8-11
2-B-12
Cross sectional elevations of Mainstem 2 Side
Channel -mouth,staff gage 114.4W6.Surveyed
by ADF&G on September 22,1983 ....•..••••.....••....
Cross sectional elevations of Mainstem2 Side
Channel -lower backwater,staff gage 114.4S9.
Surveyed by ADF&G on September 22,1983 •........•...
Cross sectional elevations of Mainstem 2 Side
Channel -upper backwater,staff gage 114.4S7.
Surveyed by ADF&G on September 22,1983 ......•....•.
Cross sectional elevations of Mainstem 2 Side
Channel -Northwest channel Q site,staff gage
114.4S5.Surveyed by ADF&G on August 6,1983 ....•..
Cross sectional elevations of Mainstem 2 -
Northwest channel head,staff gage 114.4H3.
Surveyed by ADF&G on September 24,1983 .••..•....•.•
Cross sectional elevations of Mainstem 2 Side
Channel -Northwest channel Q site,staff gage
114.4S8.Surveyed by ADF&G on July 4,1983 .......•.
Cross sectional elevations of Mainstem 2 Side
Channel -Northwest channel head,staff gage
114.4Hl.Surveyed by ADF&G on September 23,
1983 ..
Cross sectional elevations of Side Channel 10 -
mouth,staff gage 133.8W5.Surveyed byADF&G
on July 17,1983 ..
Cross sectional elevations of Side Channel 10 -
head,staff gage 133.8H4.Surveyed by ADF&G on
September 11,1983 .
Cross sectional elevations of Upper Side
Channel 11 -mouth,staff gage 136.2W3.
Surveyed by ADF&G on July 20,1983 .
Cross sectional elevations of Upper Side
Channel 11 -head,staff gage 136.2H2.Survey-
ed by ADF&G on July 18,1983 .•..•.......•...........
Cross sectional elevations of Side Channel 21 -
mouth,staff gage 140.6W1.Surveyed by AOF&G
on September 12,1983 .
xii
2-B-1
2-B-2
2-8-3
2-B-4
2-B-5
2-B-7
·2-B-8
2-B-9
2-8-10
2-8-11
2-8-12
2-8-13
LIST OF APPENDIX 8 TA8LES (Continued)
Table
2-8-13
2-8-14
2-8-15
2-8-16
2-8-17
2-8-18
2-8-19
2-8-20
Cross sectional elevations of Side Channel 21 -
lower Q site,staff gage 140.6S4.Surveyed by
ADF&G on September 12,1983 .•...••••••.•..••.••..•..
Cross sectional elevations of Side Channel 21 -
mid channel,staff gage 140.6S2.Surveyed by
ADF&G on September 12,1983 .....•...................
Cross sectional elevations of Side Channel 21 -
A5 Head,staff gage 140.6S3.Surveyed by R&M
i n 1982 CI D •
Cross sectional elevations of Side Channel 21 -
upper Q site,staff gage 140.6S7.Surveyed by
ADF&G on September 13,1983 ...••.••...•....•........
Cross sectional elevations of Side Channel 21 -
A6 head,staff gage 140.6H5.Surveyed by R&M
in 1982 (1.
Cross sectional elevations of Whiskers Side
Slough -mouth,staff gage 101.2W1.Surveyed
by ADF&G on September 11,1983 ••..•..••.•.....•.....
Cross sectional elevations of Whiskers Side
Slough -Q site,staff gage 101.2S3.Surveyed
by ADF&G ori July 3,1983 •..•...•.....•...........•..
Cross sectional elevations of Whiskers Side
Slough -head,staff gage 101.2H5.Surveyed by
ADF&G on July 3,1983 •.•..•....•....................
2-8-14
2-8-15
2-8-16
2-8-17
2-8-18
2-8-19
2-8-20
2-B-21
2-8-21 Cross sectional elevations of Side Slough 8 -
below mouth,staff gage 113.6W8.Surveyed by
AOF&G on September 12,1983 ...•...•.•.....•.••......
2-8-22 Cross sectional elevations of Side Slough 8 -
mouth,staff gage 113.6W8.Surveyed by AOF&G
on July 5,1983 .
2-8-23 Cross sectional elevations of Side Slough 8 -Q
site,staff gage 113.6S2.Surveyed by AOF&G on
July 5,1983.0 0 0 •••••0 ••••••••••••••••
2-8-24 Cross sectional elevations of Side Slough 8 -
head,staff gage 113.6H4.Surveyed by ADF&G on
July 5,1983 .
2-8-25 Cross sectional elevations of Side Slough 8A -
mouth,staff gage 125.3W5.Surveyed by ADF&G
on October 19,1983 .
xiii
2-8-22
2-8-23
2-B-24
2-8-25
2-8-26 -
LIST OF APPENDIX B TABLES (Continued)
r
I"'"
i
{,
....
2-8-26
2-8-27
2-B-28
2-B-29
2-8-30
2-8-31
2-8-32
2-8-33
2-B-34
2-8-35
2-8-36
2-B-37
2-8-38
Cross sectional elevations of Side Slough 8A -
upper backwater,staff gage 125.3S6.Surveyed
by ADF&G on July 18,1983 .....•.................•...
Cross sectional elevations of Side Slough 8A -
lower Q site,staff gage 125.3S4.Surveyed by
ADF&G on July 18,1983 Clc eeo •••••••
Cross sectional elevations of Side Slough 8A -
Northwest channel Q site,staff gage 125.3S3.
Surveyed by ADF&G on July 18,1983 ......•....•......
Cross sectional elevations of Side Slough 8A -
Northwest channel head,staff gage 125.3H2.
Surveyed by ADF&G on May 15,1983 ...•.......•..•....
Cross sectional elevations of Side Slough 8A -
Northwest channel head,staff gage 125.3H7.
Surveyed by ADF&G on August 4,1983 .............•...
Cross sectional elevations of Side Slough 9 -
mouth,staff gage 128.3W3.Surveyed by ADF&G
on September 14,1983 1l tI •
Cross sectional elevations of Side Slough 9 -Q
site,staff gage 128.3S1.Surveyed by ADF&G on
August 3,1983 .
Cross sectional elevations of Side Slough 9 -
head,staff gage 128.3H2.Surveyed by ADF&G on
August 23,1983 .
Cross sectional elevations of Side Slough 11 -
mouth,staff gage 135.3Wl.Surveyed by ADF&G
on October 19,1983 .
Cross sectional elevations of Side Slough 11 -
Q site,staff gage 135.3S6.Surveyed by ADF&G
on June 29,1983 .
Cross sectional elevations of Side Slough 11 -
head,staff gage 135.3H3.Surveyed by R&M in
1982 .
Cross sectional elevations of Side Slough 16B -
Q site,staff gage 138.0S5.Surveyed by R&M in
1982 II ..
Cross sectional elevations of Side Slough 168 -
head,staff gage 138.0H3.Surveyed by R&M in
1982 ..
xiv
2-B-27
2-8-28
2-B-29
2-8-30
2-B-31
2-8-32
2-B-33
2-8-34
2-B-35
2-8-36
2-8-37
2-B-38
2-B-39
LIST OF APPENDIX BTABLES (Continued)
~:
2-B-39
2-B-40
2-B-41
2-B-42
2-B-43
2-B-44
2-B-45
2-B-46
2-B-47
2-B-48
2-B-49
2-B-50
2-B-51
Cross sectional elevations of Side Slough 20 -
mouth,staff gage 140.1W4.Surveyed by R&M in
1982 D ••••"••eo ••ill e e •Go •CiI eo e "'"••.0 CiI 0 eo III
Cross sectional elevations of Side Slough 20 -
Q site,staff gage 140.1S5.Surveyed by R&M in
1982 0 ••••CI ••••••••III e III 00 eo ill ••••0 •1&•••CI II •••••••••••III I:'"Cl
Cross sectional elevations of Side Slough 20 -
head,staff gage 140.1H3.Surveyed by R&M in
1982 II G eo ..
Cross sectional elevations of Side Slough 21 -
mouth,staff gage 142.0W5.Surveyed by ADF&G
on May 17,1983 111 ••••••••••••••••••••
Cross sectional elevations of Side Slough 21 -
Q site,staff gage 142.0S6.Surveyed by ADF&G
on May 17,1983 .....•.....•.....e .e ••e ••••••••••••••
Cross sectional elevations of Side Slough 21 -
Northwest head,staff gage 142.0H3.Surveyed
by R&M in 1982 IIIl
Cross sectional elevations of Side Slough 21 -
Northeast head,staff gage 142.0H1.Surveyed
by RM ;n 1982 co ..
Cross sectional elevations of Side Slough 22 -
mouth,staff gage 144.3W3.Surveyed by ADF&G
on September 15,1983 .
Cross sectional elevations of Side Slough 22 -
mid Slough,staff gage 144.3S4.Surveyed by
R&M in
1982.o G ••1II
Cross sectional elevations of Side Slough 22 -
Q site,staff gage 144.3S6.Surveyed by R&M in
1982 •....................•.......•..................
Cross sectional elevations of Side Slough 22 -
head,staff gage 144.3H2.Surveyed by ADF&G on
September 15,1983 ......•...........................
Cross sectional elevations of Upland Slough 6A
-mouth,staff gage 112.3W1.Surveyed by ADF&G
on July 5,1983 .
Cross sectional elevations of Upland Slough 6A
-backwater,staff gage 112.3S3.Surveyed by
ADF&G on September 12,1983 ........•..•..•..........
xv
2-B-40
2-B-41
2-8-42
2-8-43
2-8-44
2-B-45
2-B-46
2-B-47
2-B-48
2-B-49
2-B-50
2-8-51
2-8-52
-
,...,
-
LIST OF APPENDIX B TABLES (Continued)
"...,
-
2-B-52
2-B-53
2-B-54
2-B-55
2-B-56
2-B-57
2-B-58
Cross sectional elevations of Upland Slough 19
-access,staff gage 140.0Wl.Surveyed by
ADF&G on September 14,1983 •...•..••...•..•..•.••..•
Cross sectional elevations of Upland Slough 19
below mouth,staff gage 140.0S3.Surveyed by
ADF&G on September 14,1983 ••.••.•...••..•••.....••.
Cross sectional elevations of Upland Slough 19
- Q site,staff gage 140.0S4.Surveyed by
ADF&G on September 14,1983 •••.••.•••..••.•••..•....
Cross sectional elevations of Fourth of July
Creek -Q site,staff gage 131.1Tl.Surveyed
by ADF&G on July 3,1983 •..•.•.•.•.•..•..••...•••...
Cross sectional elevations of Gold Creek -Q
site,staff gage 136.8Tl.Surveyed by ADF&G on
May 16.,1983 .•..............•III ••••••e •••••••••••••••
Cross sectional elevations of Indian River -Q
site,staff gage 136.8T2.Surveyed by ADF&G
1983 stream flow data .
Cross sectional elevations of Portage Creek -Q
site,staff gage 148.8Tl.Surveyed by ADF&G
1983 stream flow data "
xvi
2-B-53
2-B-54
2-B-55
2-B-56
2-B-57
2-8-58
2-B-60
"'"
-
"""I
1.0 INTRODUCTION
1.1 Background
The Alaska Department of Fish and Game (ADF&G)Su Hydro Aquatic Fea-
sibility Study Team has collected channel geometry data since 1981 in
association with stage/discharge and fish habitat data.The primary
emphasis of these studies has been to define the hydraulic conditions
present within selected side slough habitats in the Ta"lkeetna to Devil
Canyon reach of the Susitna River and to determine how these hydraulic
conditions influence fish habitat availability and utilization.Results
of these investigations (ADF&G 1981,1982)have been used to determine
the mainstem discharges required to breach the heads of selected side
sloughs,passage conditions present within selected side sloughs and
side channels as a function of mainstem discharge,and spawning habitat
availability and utilization.
1.2 Objectives
The primary objective of the FY84 open water fi el d season (May 1 -
October 15,1983)channel geometry program was to collect channel
geometry data in side channels,sloughs (side and upland),and
tributaries to support fishery and hydraulic studies.Results of the
channel geometry study are summarized in this report.Fishery and/or
hydraul ic studi es util i zing these results wi 11 be presented in other
chapters of this report and other reports.
The channel geometry program was divided into two studies;the thalweg
profile study and the cross sectional profile study.
1.2.1 Thalweg Profile Study
The objectives of the 1983 open water field season thalweg data col-
lection program were to develop thalweg profiles to:
1.evaluate the influence of mainstem discharge on passage within
selected side channel,side slough,and upland slough study
sites (Chapter 6,Report 3);and,
2.illustrate the influence that mainstem discharge,gradient,
and channel morphology have on the formation of backwater
within selected side channel,side slough,and upland slough
study sites.
1.2.2 Cross Sectional Profile Study
The objectives of the 1983 open water field season cross section data
collection program were to develop cross sectional profiles to:
1.evaluate the influence of mainstem discharge on specific
passage conditions that exist within selected side channel and
side slough study sites (Chapter 6,Report 3);
1
2.assist in determining the mainstem discharge required to
breach the head porti ons of selected side channel and side
slough habitats (Chapter 1,Report 3);and,
3.assist in describing the hydraulic conditions of each stage
monitoring station at side channel,slough (upland and side)
and tributary study locations (Chapter 1,Report 3;Chapter 7,
Report 3).
2
-
--
-
'1"'"
I
I
I
r
..-
-
2.0 METHODS
2.1 Site Selection
2.1.1 Thalweg Profile Surveys
During the 1983 open water field season thalweg profiles were surveyed
at sites listed in Table 2-1 and Figure 2-1.Thalweg profiles were
developed for all sites where passage conditions were evaluated.
2.1.2 Gross Sectional Profile Surveys
Cross sectional data were collected during the 1983 open water season at
locations presented in Table 2-1 and Figure 2-1.Survey data were
collected at each stage monitoring station (staff gage site)located in
side channel,slough and tributary study sites.These data were
collected to support the passage investigations study (Chapter 6,Report
3),the stage/discharge investigations study (Chapter 1,Report 3),the
hydraulic modeling study (Chapter 7,Report 3),and the spawning habitat
evaluation study (Chapter 7,Report 3).
2.2 Field Data Collection
2.2.1 Thalweg Data Collection Procedures
Thalweg survey data were collected along the entire length of the slough
or side channel using the standard surveying techniques of differential
leveling.Points of significant morphological features such as tops and
bottoms of riffles and pools were noted as thalweg points.Information
collected for each thalweg point included streambed elevation,water
surface elevation,substrate,and distance between thalweg points.The
specific techniques and procedures used to collect thalweg survey data
are presented in the FY84 ADF&G Procedures Manual (ADF&G 1984).
Substrate was assessed visually at each thalweg point using the classi-
fication system presented in Table 2-2.
2.2.2 Cross Sectional Data Collection Procedures
For most study sites,cross sectional profiles were developed using
survey data collected at transects within selected study sites.Cross
sectional information included streambed elevations,water surface
elevations,and horizontal distance from bank headpin.The survey
techniques and procedures used in the collection of cross sectional data
are presented in the ADF&G FY84 Procedures Manual,(ADF&G 1984).
Cross sectional profiles of Indian River and Portage Creek were
constructed from streamflow measurement data.Water surface elevations
and hori lonta 1 di stances were recorded at each flow measurement poi nt
along a transect.The streambed elevations were derived by subtracting
the depth of the water column from the water surface elevation recorded
at each flow measurement point.Flow measurement techni ques and data
collection techniques are presented in the ADF&G FY84 Procedures Manual
(ADF&G 1984).
3
Table 2-1.
Site
Channel geometry study sites in side channel,side
slough,and upland slough habitats of the Susitna River
during the 1983 open water season.
River Mile
Side Channels
Mainstem 2 Side Channel
Side Channel 10
Upper Side Channel 11
Side Channel 21
Side Sloughs
Whiskers Creek Slough
8
8A
9
9A
11
16
16B
20
21
22
Upland Sloughs
6A
10
19
Tributaries
Fourth of July Creek
Gold Creek
Indian River
Portage Creek
4
114.4
133.8
136.2
140.6
101.2
113.6
125.3
128.3
133.2
135.3
137.7
137.9
140.1
141.8
144.3
112.3
133.8
140.0
131.1
136.8
138.6
148.8
-
-
SIDE CHANNEL.SLOUGH AND TRIBUTARY
CHANNEL GEOMETRY STUDY SITES
I TALKEETNA -DEVIL CANYON l
Whlskers Cr••"
SlouQh
o
!
MILES
10
I
.-
-
~,
Figure 2-1.Locations of channel geometry study sites in side
channel,slough,and tributary habitats of the
Susitna River during the 1983 open water season.
5
Table 2-2.Substrate classification system used during the 1983 open
water season
Silt
Sand
Fine Gravel
Gauge Gravel
Rubble
Cobble
Boul der
6
1/4 - 1 in
1 - 3 in
3 - 5 in
5-10 in
10 in
_.
-
-.
--
-
-
-i
....
-
2.3 Analytical Approach
2.3.1 Thalweg Profile Study Analysis
Thalweg profiles consist of a series of elevations of the deepest part
of a stream channel and the corresponding water surface elevation
.determined for each thalweg point.Thalweg profiles transverse the
entire length of the study site with the thalweg survey data plotted as
streambed elevations and water surface elevations.
Water surface elevations determined from staff gage readings and the
corresponding mainstem Susitna River discharge at Gold Creek (USGS
gaging station 15292000)were also plotted on the thalweg figures.The
water surface elevations illustrated represent the range of water
surface elevations observed during the 1983 open water season.
Areas of backwater were determined from the water surface elevation
profiles at various mainstem Susitna River discharges at Gold Creek
(USGS gagi ng station 15292000)and the channel geometry of the study
site.
Streambed gradients of the study sites are determined by dividing the
difference between the thalweg (streambed)elevation of the most down-
stream portion of the thalweg profile (usually the mouth of the side
channel or slough)and the thalweg elevation at the most upstream
portion (head)by the length of the thalweg survey.The general
substrate composition of the channel is illustrated beneath the thalweg
profi 1e.
Mainstem gradients corresponding to the study sites were determined by
dividing the difference between the known elevation of the upstream
Lower River Cross Section (LRX)and the elevation of the LRX just
downstream of the study site by the distance between the points.
The general substrate compositon of the channel is illustrated beneath
the thalweg profile.
Thalweg profiles are used to evaluate potential passage problems in the
study sites as determined by the depth of water within the study channel
corresponding to various mainstem Susitna River discharges.
2.3.2 Cross Sectional Profile Study Analysis
Cross sectional survey data consists of a series of elevations perpen-
dicular to the stream channel,beginning from the left bank (looking
upstream)continuing to the right bank,including every major change in
channel topography.Data were graphed as streambed e1 evati on versus
horizontal distance.Included in the cross sectional profiles of side
channel sand sloughs (si de and upl and)are a seri es of water surface
e1 evati ons determi ned from staff gage read;ngs and the corresponding
mainstem Susitna River discharge recorded at Gold Creek (USGS gaging
station 15292000).Illustrated on the cross sectional profiles of
triburary discharge stations are water surface elevations determined
from staff gage readings and the corresponding streamflow of the
7
tributary.The water surface elevations illustrated on the cross
sections represent the range of water surface elevations observed during
the 1983 open water season.
Cross sectional profiles are used.to support modeling studies and to
assist in determining the hydraulic conditions governing the study site.
8
-
-
..-
3.0 RESULTS
Thalweg and cross sectional profiles developed from survey data
collected in the Tal keetna to Devi 1 Canyon reach of the Susitna River
are presented according to the following habitat types,:side channel,
slough (side and upland),and tributary.
3.1 Side Channel Habitats
Survey data used in the development of thalweg profiles were collected
at four side channels in the Ta"lkeetna to Devil Canyon reach of the
Susitna River during the 1983 open water season.The thalweg data
recorded are presented in Appendix Tables 2-A-l to 2-A-5.The cross
sectional survey data were collected at five side channel s and are
listed in Appendix Tables 2-B-l to 2-B-17.
Thalweg profiles and cross sectional profiles produced for study sites
in side channel habitats are presented below by site.
3.1.1 Mainstem 2 Side Channel (RM 114.4)
Mainstem 2 Side Channel (RM 114.4)located on the east bank of the
Susitna River,is a V-shaped channel approximately one mile long.
Approximately 1,600 upstream of the mouth the northwest (left)channel
is joined by the northeast (right)channel.Each channel is separated
from the mainstem by a large vegetated island.
The thalweg profiles of Mainstem 2 Side Channel (Figure 2-2),were
developed from survey data collected during a non-breaching mainstem
discharge of 9,080 cfs and an estimated side channel flow of less than 1
cfs.Substrate in the northwest channel is primarily silt and sand in
the backwater area,and gravel or rubble in the upper portion.Cobble
and boulder substrate predominate in the northeast channel.
The backwater area in the northwest channel extends upstream at least
1,200 feet at mainstem discharges between 16,000 and 21,700 cfs (USGS
gaging station 15292000).At a mainstem discharge of 31,700 cfs the
backwater area in the northwest channel increases to approximately 2,000
feet upstream.The backwater area is reduced to approximately 800 feet
into the northwest channel at a mainstem discharge of 9,080 cfs.In the
northeast channel very li ttl e backwater effect has been observed over
the full range of mainstem discharge occurring during 1983.
The gradient of the northwest and northeast channels is 10.2 and 12.5
ft/mi respectively.The corresponding mainstem Susitna River gradient
is 9.2 ft/mi .
Cross sectional profiles developed for Mainstem 2 Side Channel are
presented in Figure 2-3.Each of the seven sites corresponds to the
location of a staff gage (Table 2-3).
3.1.2 Side Channel 10 (RM 133.8)
Side Channel 10 (RM 133.8)located on the west bank of the Susitna
River,is approximately 0.5 mi long and is separated from the mainstem
9
MAINSTEM 2 THALWEG PROFILE
UAINSTEM 2
fJPIIOfIU nUDY Alli.o'
.A ..TRlAN.IO "..fIOll
IURYlY DA.n:,83tY.lZB
WAIMSlCY Q la.Slid "••II!>~.OHO I;h
IIT~Q'::~~~~:~~=:=::t ~~"::IU"'"
IUIITNA lWEI IUCH GRAD"NT,'i_Z 11/",i
lITE GUOIUT,::::::::~:.~::~:
-WATU tURFACE ~DAn;Of SUIVlY
L...JaILT/IAND
E5J 4MA'IiL '''UBIL[
1m CO.Il''eOuUln
-WATER aURfACE 'ROM STAGE DATA
41Hoo
60+00
oIloiooo
iliDtOO
~+oo
aoioo
5OtoO
4'tOO
25+00
40400
20too
5TREAMSEP $TAT ION Uu')
'StOO
luao
30100 '
IOtOO
4.'
4.0
47.
~47'
Z
0
~>472"l
'"'"470
"'"I-
4"
4"
0:00 s:oo
4.'~NORTHEaST CHANNEL
464 (RIGHT CHANNEL)
4.'
%480-1 ~"l~O cu
~418
j:..
~474
~
tI::472
I-
470
4••
4"il:oloo115';00 2.64.00
f-'o
STREAMBED STATION U .., I
Figure 2-2.Streambed (thalweg)'profile of ~Iainstem 2 Side Channel (RM 114.4)and water
surface elevations corresponding to various mainstem Susitna River discharges
at Gold Creek (USGS gaging station 1529200).
J -l J I 'I ~I 1 J }.1 J l j J 'I.')i>'
]1 --l -1 -1 1 )1 ,J l
550 400 4$0
,;
....................~'8,IOOch
/
ACKWATER
I ..tel LOWE~I:4S9..GAGE .•..84~
Z ..so
0
S ...e
>
"82III
...J
III 41.
STAff GAGE
III
D.ADf aG CROSS
~
1---1 SECTION
III:47.....'DO~
"70 I
114.4We
1"1""1'-,,,.,,
0
HORIZONTAL DISTANCE Ifeell
MOUTH
GAGE 114.4W6
491..•"s"..UPPER BACKWATER
GAGE 1/4.457
4 7 0',iii ,iii $I •iii i i • i
47'~r .J1,700c~.
482
100 150 200 2$0 $00 350 400 450
'-4iIiiilI::~--I".OO&h
o
~0
S ..
>~
III
III
~
III:...474~..........L/"7.Z~Oc'.
100 150 200 250 aDO 350 400 4$050
HORIZONTAL DISTANCE Ifeetl HORIZONTAL DiSTANCE Ifeet I
Figure 2-3.Cross sectional profiles of the staff gage sites in Mainstem 2 Side Channel
(RM 114.4)and water surface elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS gaging station 15292000).
4811 HE CHANNEL Q SITE
~GAGE 114.4S8•~..4
Z 4.0
0
j:...o:t>III 411...
III
III 418~
:J
II:474...
410
~eo ,00 ,io 200 ao 1100 300 400 4eono400400
~;;J 11,100.'.
..................~:;7 ::::::~:
4.81 NW CHANNEL Q SITE
~GAGE 114.4S5••,.,
~
Z 4'0
0
S '88
>III 4U....
III
III 418,
~a:414...
410 .
100 2eo JOO000'80 200
HORIZONTAL DISTANCE ,"."HORIZONTAL DISTANCE "..II
400400000JOG
1 III,JOOe..
aa1eOOcl@
4881 NE CHANNEL HEAD
~GAGE 114.4HI•484~
Z 480
0
S ...
>!j 482
III...418,
::>
II:414...
410
~200200100'DO.0
NW CHANNEL HEAD
GAGE 114.4H3
6-.......~~/1__~-..,7••'"
"...........II,eoO!:'.
,iii iii iii i ./1 i I X i I I iii iii J iii I I I I i
Ei50 7 0 7 0 800 8&0 900 0 1000 1050 1100 I1'O
......
N
498
~494•:490
z
0 4 ••'j:
o:t 48:!>III....47'III
III
::>410
'"I-
'70
I>
HORIZONTAL DISTANCE'18.'1 HORIZONTAL DISTANCE ""11
Figure 2-3 (continued).Cross sectional profiles of the staff gage sites in Mainstem 2 Side Channel
(RM 114.4)and water surface elevations corresponding to,various mainstem
Susitna River discharges at Gold Creek (USGS gaging station 1529200).
I J J ,•~•..~J l I ••~l J
Table 2-3.Cross sectional profile sites in Mainstem 2 Side Channel (RM
114.4),1983.
Staff Date
Site Gage Obtained Agency
If"'"Mouth 114.4W6 9/22/83 ADF&G
Lower Backwater 114.459 9/22/83 ADF&G
Upper Backwater 114.4S7 9/22/83 ADF&G
NE Channel-'Discharge Station 114.458 7/04.83 ADF&G
NW Channel
Discharge Station 114.4S5 8/06/83 ADF&G
NE Channel Head 114.4H1 9/23/83 ADF&G
"~NW Channel Head 114.4H3 9/24/83 ADF&G
;""'"'
-13
by a large gravel bar.Slough 10 enters Side Channel 10 approximately
379 feet upstream from the mouth of the side channel.
Survey data collected for the development of the thalweg profile (Figure
2-4)of Side Channel 10 was recorded on two occasions both during
non-breaching rna instem di scharges.Survey data for stations -3+20 to
3+79 were recorded at a Susitna River discharge of 18,600 cfs (USGS
gaging station 15292000).Stations 5+62 to 26+87 were surveyed during a
mainstem discharge of 12,200 cfs.Side Channel 10 flow was estimated to
be less than 1 cfs on both survey dates.The backwater pool area
illustrated in the thalweg profile consists of a thick layer of silt and
sand.Alternating pools and riffles occur upstream of the backwater
area.Substrate is primarily cobble/boulder or gravel/rubble with silt
deposited in the pool areas.
The backwater area extends approximately 1,200 feet upstream of the
mouth area at mainstem discharge greater than 18,600 cfs.At a mainstem
discharge of approximately 12,200 cfs,a reduced area of backwater
occurs extendi ng upstream approximately 400 ft above the mouth.The
gradient of Side Channel 10 is approximately 22.3 ft/mi,while the
gradient of the adjacent mainstem area is 9.0 ft/mi.
During the 1983 season,cross sectional data were collected at six
locations in Side Channel 10 (Table 2-4).The surveys which were
conducted in support of the physical habitat modeling study are
presented in Chapter 7.Cross sections of the mouth and head of Side
Channel 10 are presented in Figure 2-5.
3.1.3 Upper Side Channel 11 (RM 136.2)
Upper Side Channel 11 (RM 136.2)located on the east bank of the Susitna
River,is a single channel approximately 0.4 mi in length and is separ-
ated from the mainstem by a well vegetated island.Approximately 1,400
feet upstream from the mouth,Upper Side Channel 11 is connected with
the head of Slough 11.
The backwater area in upper Side Channel 11 extends approximately 450 to
500 ft into the side channel with corresponding mainstem discharges of
11,400 to 31,700 cfs (Figure 2-6).Thalweg survey data were collected
duri ng a breachi ng rna i nstem di scharge of 18,900 cfs and an estimated
side channel flow of 55 cfs.
Above the backwater area,Upper Side Channel 11 consists of a series of
long riffle,s and pools.Silt and sand deposits occur in the backwater
and pool areas.Cobble and boulder substrate predominate in the riffle
areas.
The gradient of Upper Side Channel 11 is approximately 23.6 ft/mi and
the corresponding mainstem gradient is 16.ft/mi.
Cross sectional survey data were collected at five staff gage locations
in Upper Side Channel 11 (Table 2-5).Cross sections developed from
data collected at the head and mouth gages are presented in Figure 2-7.
14
-
-
1 J I -1 1 -1 1 1 J 1 1
......
(J"J
SIDE C.HANNEl-10
&a P,ul,t.'lIll111,A'M
I!:.51.10_101'51"11,",
SIDE CHANNEL 10 THAlWEG PROFILE
iI/NYU DAn,8101Il)/UO'li -'-'WAtE:ll IUlllf.lU ON C1AT!CII IUIIIIVU
."...,SUM II til'Or,lll C,.....j.'1,600/11.1:00 ell _IULll ....Ng'IT~II;<I ell 1::3 llIAYEL '"IJ"U:
IUII'N"IlIVr.R IlIACH liRAQIENT'I.OII/IN m cO.'U:IIDUUIEfl...'f GIlAllIEN1,U,Sfo'.i -w..nl IURt"Allf fIlO..,UliE DATA
STAEAMIJED STATION "..II
20;00
Figure 2-4.Streambed (thalweg)profile of Side Channel 10 (RM 133.8)and water surface
elevations corresponding to various malnstem Susitna River discharges at Gold
Creek (USGS gaging station 1529200).
Table 2-4.Cross sectional profile sites in Side Channel 10 (RM
133.8),1983.
·16
SIDE CHANNEL.10
120 140"160 180 200 220204060BO
HORIZONTAL DISTANCE (feet)
MOUTH
GAGE 133.8W!5
]---------------,.~-2.~OOOc.,.
"1------------'7"'--21,IOOds
l5O-"",~---------:::~::'---_I..,"C?O.f'
666
664
-662..660~.,..
6SBZ
2 6S6~«>6S4
1&1
....I 6S21&1
1&1"6:::l
Q:
~648
646
644
0"-
-
666
664
662-660•:!
66B
Z
0 666
~«664>
III 6S2....I
1&1
1&1 660
:::l
Q:648
~
646
644
0
HEAD
GAGE 133.8H4
20 40 60 BO 100 120 140 160 ISO 200 220 240 2llO 2BO 300 320 340 360 3l!O
HORIZONTAL DISTANCE (feen
Fi~ure 2-5.Cross sectional profiles of the staff gage sites in
Side Channel 10 (RM 133.8)and water surface elevations
corresponding to various mainstem Susitna River discharges
at Gold Creek (USGS gaging station 152900)
"17
UPPER SIDE CHANNEL II
THALWEG PROFILE
......
co
665
660
..
D-
zo
!:t>675
Ul
J
Ul
Ul
::J
II:
I-
670
UPPER SIDE CHANNEL \I
______sus/rNA
,.,100ctl ~
21.900 eta
16,000 l:h
12,2:00 tta -#
11,400 ell
2 3
STUDY TRANSECT LOCATIONS IADF II G MODELING STUDY,19631
SURVEY DATI!:,830120
MAINSTEII 11101 Gold Cro.U.16.600.1.
SITE II:55 GIl
SUSITNA RIVEIl REACH GRADIENT,16.61t/ml
SITE GRADIENT.23.61t1mi
--WATER SURFACE ON DATE OF SURVEY
Il1!l'!iiSILT/SAND
~COBBLE /BOULDER
--WATER SUIlFACE FRO II STAGE DATA
--~----
-ltOO OtOO 6tOO 10i-00 16+00 20tOO
STREAMBED STATION (fool)
Figure 2-6.Streambed (thalweg)profile of Upper Side Channel 11 (RM 136.2)and water surface
elevations corresponding to various mainstem Susitna River discharges at Gold
Creek (USGS gaging station 1529200).
J I J ...~!.J ,~~11 J I !J l J I J."
Table 2-5.Cross sectional profile sites in Upper Side Channel 11
(RM 136.2),1983.
Staff Date
Site Gage Obtained Agency
~Mouth,ADF&G Model 136.2W3 7/20/83 ADF&G
Transect 1
ADF&G Modell 136.2S4 1983 ADF&G
Transect 2
-ADF&G Modell 136.255 1983 ADF&G
Transect 3
ADF&G Modell 136.251 1983 ADF&GIf'~Transect 4
Q Site
Head 136.2H2 7/18/83 ADF&G
1 Cross section presented in Chapter 7.
-
19
--••..
"lI90
6n
688
MOUTH
GAGE 136.2W3
UPPER SIDE
CHANNEL II
C.STA~~GA••
I-I.&D~••C_S
SECTiONo_
L...;-m-I
CANru.••.ele'
67lS
eT
672 ....._...._...,._...,-,...,...,..."l""'".,...,...,..'T.....,._..,_-,~....,
a 20 40 lIO 80 100 120 140 Ilia 180 200
HORIZONTAL DISTANCE"(f8et)
690 HEAD
GAGE 136.2H2
688 3r.'OOch-..686 1.,IOOcfl•145.0001:11......684
Z
0
~882
<II:>6801&1
oJ
1&1 678
1&1
~676II:
~
674
672~..........-_.,....,....,.."""I""..,...,....,.~po-.,.."I"'""'"T"'''''''I""-r.......,-_,..........,
880 900 920 940 960 980 1000 1020 1040 1060 1080 lIOO
HORIZONTAL DISTANCE (feet)
Figure 2-7.Cross sectional profiles of the staff gage sites in
Upper Side Channel 11 (RM 136.2)and water surface
elevations corresponding to various rilainstem Susitna
River discharges at Gold Creek (USGS gaging station
1529200).
20
-.
I
-
,...-
-
-
Cross sectional profiles of the habitat modeling locations are presented
in Chapter 7.The cross section of Upper Side Channel 11 gage 136.2H2
is restricted to that portion of the channel which is generally breached
during the open water season.
3.1.4 Side Channel 21 (RM 140.6)
Side Channel 21 (RM 140.6)is a relatively straight,single channel,
approximately 0.9 mi 1eng and is located on the south bank of the
Susitna River.It is separated from the mainstem by a series of well
vegetated islands and gravel bars.At sufficient mainstem discharge,
turbid mainstem water enters the side channel through several
intermittent channels.The mouth of Side Slough 21 flows directly into
the upper portion of Side Channel 21.
The thalweg profile of Side Channel 21 (Figure 2-8)shows that in
general,pools are located in the mouth and head areas.Beginning from
station -50+00,the backwater area extends approximately 1500 ft into
the side channel at mainstem discharges exceeding 16,000 cfs.The
thalweg figure was developed from data recorded during a non-breaching
mainstem ~ischarge of 7,800 cfs and an estimated side channel flow of 5
cfs.Substrate in Side Channel 21 is predominantly cobble/boulder with
silt/sand deposits in the mouth and pool areas.
The gradient of Side Channel 21 is 12.4 ft/mi and the corresponding
mainstem gradient is 16.6 ft/mi.
Cross sectional data was recorded at 10 sites within Side Channel 21
during the 1983 open wat~r season (Table 2-6).Cross sections
corresponding to the locations of staff gages are presented in Figure
2-9.Cross sections developed in support of the habitat modeling study
are presented in Chapter 7.
3.2 Side Slough Habitats
Survey data necessary for the development of thalweg profil es were
collected at ten side sloughs in the Talkeetna to Devil Canyon reach of
the Susitna River.The thalweg data recorded are listed in Appendix
Tables 2-A-6 to 2-A-13.Cross sectional surveys were conducted at nine
side sloughs.The cross section data are presented in Appendix Tables
2-B-18 to 2-B-49.
Thalweg profiles and cross sectional profiles produced for study sites
in side slough habitats are presented below by site.
3.2.1 Whiskers Creek Side Slough (RM 101.2)
Whiskers Creek Side Slough (RM 101.2)located on the west bank of the
Susitna River,is a single channel approximately 0.6 mile long.The
slo~gh is separated from the mainstem by a well vegetated island.
Whi skers Creek enters the slough approximately 1,200 feet upstream of
the slough mouth.
21
N
N
SiDE CHANNEL 21
Q -PROfiLE STUDY AREA
&\~STREAMBED STATION
760
766
760
~
~
746
zo;:::
~...
~740...
:>
It:
I-
1>6
730
/
I 2 ,4 6
liTUOY TR ....NSfer LOtAflOriS
IAOfBG MODELI~G STuPT.195~1
SIDE CHANNEL 21
THALWEG PROFILE
SURVEY 0",1£:82.1014 --WATER SURFACE ON DATE OF SURVn
~AINSTE"Q 101 Gold Cr..Il~'7,800 ell c:J SILT/SAND
SITE Q:'<:,.~COBBLe.I IOULOii,:R
SU$lTNA RIVER REACH GftADIENT:16.6 fl/mi --WATER SURFAcE fROM STAGE DATA
SITE GRADIEHliI2.4 'I/mi
1150-
,..
J,«;.,•
STUDY TRAHnel LOCATiONS
lAD"'''G MODELIKG STUDY,198U
-50+00 -!HOO 0'00
Figure 2-8.Streambed (thalweg)profile of Side Channel 21 (RM 140.6)and water surface
elevations corresponding to various mainstem Susitna River discharges at Gold
Creek (USGS gaging station 1529200).
J J 1 -~l I ..~;,:~~J I .J I J .J J •j J
Table 2-6.Cross sectional profile sites in Side Channel 21 (RM
140.6),1983.
Staff Date
Site Gage Obtained Agency
~
Mouth 140.6W1 9/12/83 ADF&G
ADF&G Modell 1983 2 ADF&G
Transect 1
ADF&G Modell 1983 2 ADF&G-Transect 2
ADF&G Modell 1983 2 ADF&G
Transect 3
ADF&G Model,140.654 1983 2 ADF&G
Lower Q Site
I"'"'Transect 4
ADF&G Modell 1983 2 ADF&G
Transect 5
Mi d-Channe 1 .140.652 9/13/83 ADF&G
Channel A5 Head 140.653 7/11/82 RM~
Consultants
r-Upper Q Site 140.657 9/13/83 ADF&G
Station
r Channel A6 Head 140.6H5 7/11/82 R&M
Consultants
1 Cross section presented in Chapter 7.
2 No staff gage station located at this site.
23
Tt.+__....._,.......r--......_"'"T"............."'!':"......~"""'!..~~~~~-~~
HORIZONTAL DIST.,tCE "••U
"0 MOUTH
GAeE 140••WI
TOO.111.
Z 1<0
S!
i -~1<0....
"0:n...
"t
Tt.
oo ...
SIDlE CHANMIL 2.1
TOO
".
CHANNEL AS
OAO'l140.8."3
-
-.
TOO LOWER 0 SITE
SASE 140.•••
TIO
~111
Z TO.
S!
!C T..i:i...
T"....la.ooo ..."1'lI.""'lrl..T.10.""'"..
Tit
Tt.Tt·+................-.-'"I'IO...,-...,-....-,...,_.-........-_........_..
oo KlO I"ZOO UD '*'310 40Q
HORIZONTAL DISTANCI (te.tl
TOO
T"
:TIt.-~
i
~..
~0:,..
UPPER 0 'ITE
liIAGE 140._87
HDftlZOMTAL DISTANCI U ••t I
TOO lllD CHANNEL
GAO£,1~.S2.
100.
Zq..
~
d...::>..,....
".
.._...
".11.10".,,,
TOO
".
'It
CItANNIlL ••
SAllE 10CUH,
U"OOO.,..
..e,OOO'.1
"-__..........~J "._."
II,toOt'"
HO'R1ZOf!llTAL DISTANCE It••n
Tt·+--.........'......-'"I'IO...-.......,-...I"'""-.......-....,..,,,;'-<-...1'",....-.....,-.-."I';......-."'lj·0.....,7Jo
HORIZONTAL DiSTANCE""un
Figure 2-9.Cross sectional profiles of the staff gage sites in Side
Channel 21 (RM 140.6)and water surface elevations
corresponding to various ~ainstem Susitna River discharges
at Gold Creek (USGS gaging station 1529200)
24
-
-,
I
A backwater pool,illustrated in the thalweg profile (Figure 2-10)
extends at least 500 feet into the channel at mainstem discharges
greater than 12,200 cfs.At a mainstem discharge exceeding 24,000 cfs
the backwater area increases to at least 1,000 feet.The thalweg figure
was developed from data recorded during a non-breaching mainstem dis-
charge of 9,080 cfs and an estimated slough flow of less than 2 cfs.
Substrate in the lower slough is primarily gravel,while rubble/cobble
predominate in the upper slough areas.
The gradient of Whiskers Creek Side Slough is approximately 9.2 ft/mi
while the adjacent mainstem gradient is 4.9 ft/mi.
Cross sectional survey data were collected at three staff gage lDcations
in Whiskers Creek Side Slough (Table 2-7).The resulting cross sections
are presented in Figure 2-11.
3.2.2 Side Slough 8 (RM 113.6)
Side Slough 8 (RM 113.6),known also as Lane Creek Slough,is located on
the east bank of the Susitna River.The slough is approximately 0.4
mile long and is separated from the mainstem by a well vegetated gravel
bar.An area of backwater occurs at the mouth during periods of
moderate to high mainstem flows.However,no thalweg or stage data were
recorded to determine the extent of the backwater area and corresponding
mainstem discharges.
During the 1983 open water season cross sectional survey data were
recorded at three staff gage locations and at a site located below the
mouth (Table 2-8).The cross sectional profiles are presented in Figure
2-12.
3.2.3 Side Slough 8A (RM 126.2)
Side Slough 8A (RM 126.2)is located on the east bank of the Susitna
River.The slough is approximately two miles long and is separated from
the mainstem by a,large vegetated gravel bar.Approximately 2,500 ft
upstream of the mouth,the slough divides into two forks:the northeast
(right)channel and the northwest (left)channel.A beaver dam is
located upstream approximately 2,000 feet from the mouth.A series of
beaver dams are also found upstream in the northeast channel.
The backwater area in Side Slough 8A extends approximately 1,000 feet
into the slough from the mouth during mainstem discharges as low as
10,000 cfs (Figure 2-13).At mainstem discharges exceeding 31,000 cfs
backwater extends at 1east 1,400 ft.upstream from the mouth.The
tha 1weg profil e extends from the mouth to the head of the northeast
channel.Data for stations -3+74 to 38+23 were collected at a non-
breaching mainstem discharge of 6,750 cfs with an estimated slough flow
of 20 cfs.Stations 38+73 to 106+63 were surveyed during a non-
breaching mainstem discharge of 7,110 cfs and an estimated slough flow
of 20 cfs.Thalweg survey data were not collected in the northwest
(left)channel.
25
WHISKERS CREEK SLOUGH
THALWEG PROFILE
WHISKERS CREEK SlOU~H
!l :;:=~;~[~"~;rT~O-:A ...~
SUIIYIEY PAn::15092.
MAINSTEM Q tol 6014 Cr••'.,8.080 cl.
liTE 0 =<2 GI.
IUalTNA RIYER IIUCK CiRAOliHT,4.9 tllmi
SITE:GaAOI£NTI '.2 Il/II\i
--"'AUR SURfACE ON DAn:Of IUIIVIEY
SO.AVEL I .UIILIellOtlLl1••ULDIR .
---O~PT"ntl.....na
-WATE~SURfACE:FROiI 8YAGl:DATA
>70
24,000 cis
21,600 ch15,600 ch-----
12,200 d.
!lI,IIOO 4lh------------------~------------------=======:;
..ouTHOfl
SL()~
:;366
=z
!1.....>...
.J 360......
:>
0:...
N
O'l
DiDO 5+00 10+00 l!;Jtoa 20tOO 25+00 50+00
STREAMBED STATION "eet)
Figure 2-10.Streambed (thalweg)profile of Whiskers Creek Side Slough (Rr~101.2)and
water surface elevations corresponding to various mainstem Susitna River
discharges at Gold Creek (USGS gaging station 1529200).
I ~;1 J I .~l ~~1I J I 1 J J •I )J...~
Table 2-7.Cross sectional profile sites in Whiskers Creek Side
Slough (RM 101.2),1983.
Staff Date
Site Gage Obtained Agency.-Mouth 101.2W1 9/11/83 ADF&G
Discharge Station 101.253 7/03/83 ADF&G
Head 101.2H5 7/03/83 ADF&G
-
....
~,
27
HEAD
GAGE IOl.2H5
'\:::J IIIIOUS!"fl
~ll.IDDchl
140 16012010080604020
WHiSKERS CREEK 380
SLOUGH -3786S~lia:;7iI----IAOF "'G GflOSS
~376SECTION
o 1.1l -374L--..J
ZUIT
lA"...1 ••111 0
S 372
>370III
.J 368ILl
ILl 366:>
It:364I-
'....."..,~......."..I 362
360
0
HORIZONTAL DISTANCE (feet!
140 16012010080604020
\.<:~z~'.:~:::
Q STATION
GAGE 101.2S3
380
378
•376
.~
374
z
0 372
j:
q;370;>-
ILl 368.J
W
ILl 366
:>
It:364
I-
362
360
I
0160140120100806040
'\.'"===::::~----•.440ch
20
MOUTH
GAGE 101.2WI
Nco
380
-378
;376::.
Z 374
Q 372I-q;
370>ILl
.J 368
ILl
ILl 366
::>
It:364....
362
360 ,
0
HORIZONTAL DISTANCE 1t8etl HORIZONTAL DISTANCE (f.et!
Figure 2-11.Cross sectional profiles of the staff gage sites in Whiskers Creek Side
Slough (RM 101.2)and water surface elevations corresponding to various
mainstem Susitna River discharges at Gold Creek (USGS gaging station
1529200).
I t I 1 I .~1 l ~-1 ~I )I )J I ..~
Table 2-8.Cross sectional profile sites in Side Slough 8 (RM
113.6),1983.
Staff Date
Site Gage Obtained Agency-1BelowMouth 9/12/83 ADF&G
Mouth 113.6W8 7/05/83 ADF&G
Discharge Station 113.6S2 7/05/83 ADF&G
Head 113.6H4 7/05/83 ADF&G
1 No staff gage station located at this site .
....
....
29
__SUSIrNA iI/VCII-.,,:V'
SIDE 5LOUGH iii
o n"'"IAiI..-::nlt:lllU
~
1.l...~~:"'.1
...
~
MOUTH
''''lIE UI.8WI
r -1I.'oacr•~~...._111
...
2i
~
.J......
"'"..
HEAD
''''GIE 115.8H4
'"
wo ..,40 "0 .10 200 220 240
HORllOIiT,AL DISTANC';u."u
..10 100 IIlO 140 "0
HORIZONTAL DISTA.NCE crnl~
...
Q SITE
GAGE:1I~.BS2
!
,"'
IILOW MOUTH (AI
~~~:~:=:::
"~
;;j...
"l!:
4(;0''iii iii Iii 'j ,I 'iii iii
----..10 100 120 .40 leo 110 200 UU
HORIZONTAL DI5TANCE I r"l)
..~o ~•i 'i i , i , ,iii i ,iii • i ; I g
10 ~120 ~l~IW ~~~
HORIZOIiTAL DI$UNCi {fun
Figure 2-12.Cross sectional profiles of the staff gage sites in Side
Slough 8 (RM 113.6)and water surface elevations corresponding
to various mainstem Susitna River discharges at Gold Creek
(USGS gaging station 1529200).
)J J J 1 I 1 1 )~.1 I I ~..J J 1 ~I
-1 1 -I I "1 I ]J 1 I ]j ]I
SLOUGH 8A THALWEG PROFILE
W
l-'
.n;
.!670
z
~~565
~...
'50 ADfle GAGE
I2s.n..
IUflYIT OaT':IItJOl~1&111015
.....I...TI...G '"IoIlI CrIMI>7.110/Ii,7I0 "'"
IITI:Q 1'.11,80 d,
IU.IT••RIVIR RIE,I,GM ,,,APIINY,....III.
"1'1 UADIIENT,11.5 11I..t
-WATU IURf'lOl OW PATI 01 .....vl..
D ••U/....ND
~GUYIL/"U .....r.
_to'IIU'IDULDU
---N,l"'.lll111_TED
-"UIUII IilUR'ACf fROM ''''Gf PAT"
5~O\oO otcio''D:O~I i 10:00 .',,100 I ~O!Oo'fat);)i I ';Oto~;16100 .aJoO ":.0'.00''10100 i aJ~i i;o100 .i e.loo I 10100 i 711~•'.0100 edoc'.0100'i 'I~i .0&.00".QIl•.io i i 110'.00
STREAMBED STATION (lootl
Figure 2-13.Streambed (thalweg)profile of Side Slough 8A (RM 125.3)and water surface elevations
corresponding to various mainstem Susitna River discharges at Gold Creek (USGS gaging
station 1529200).
Gravel and rubble are the predominant substrate types in the lower
slough and cobble/boulder predominate in the upper slough areas.The
backwater area and the beaver dam pools are primarily silt and sand.
Substrate in the northwest fork is mainly rubble/cobble.
The gradient of the slough is 11.5 ft/mi while the corresponding
mainstem gradient is 9.2 ft/mi.
Cross sectional data were collected at seventeen locations in Side
Slough 8A during the 1983 open water season (Tabl e 2-9).The surveys
whi ch were conducted to support the model ing study are presented in
Chapter 7.Cross sections surveyed at six staff gage locations are
presented in Figure 2-14.
3.2.4 Side Slough 9 {RM 128.3}
Side Slough 9 is approximately 1.2 miles long and is located on the east
bank of the Susitna River.The slough is separated from the mainstem by
a large vegetated island.Two small tributaries located approximately
500 and 3.000 ft upstream from the mouth flow into the slough.Near the
head.Slough 9 is joined by a small upland slough referred to as Slough
9B.
Data for the development of the thalweg profile of Slough 9 (Figure
2-15)were collected on three occasions.Stations -8+76 to 14+32 were
surveyed during a mainstem discharge of 12.500 cfs and an estimated
slough flow of 8 cfs.Data were collected at stations 16+47 to 33+57 at
a mainstem discharge of 14.400 and an estimated slough flow of 8 cfs.
The remaining stations were surveyed at a mainstem discharge of 7,950
and an estimated slough flow of 8 cfs.
The backwater area extends at 1east 500 feet upstream at ma i nstem
di scharges exceedi ng 15.200 cfs.At hi gher di scharges the backwater
area is increased.Substrate in the backwater areas is primarily
composed of shifting sand or silt bars.Upstream of the backwater area
the substrate is primarily gravel/rubble and cobble/boulder with silt
deposits in the pool areas.
The gradient of Slough 9 is 13.8 ft/mi while the corresponding mainstem
gradient is 8.7 ft/mi.
Cross sectional survey data were collected at ten locations in Slough 9
{Table 2-10}.Cross sections of habitat modeling transects are pre-
sented in Chapter 7.The cross secti ons correspondi ng to three staff
gage locations are presented in Figure 2-16.
3.2.5 Side Slough 9A {RM 133.2}
Side Slough 9A {RM 133.2}is approximately 3.300 ft long and is located
on the east bank of the Susitna River.The slough is separated"from the
mainstem by a large vegetated island.
The thalweg profile data of Slough 9A were collected during a non-
breaching mainstem discharge of 9,400 cfs and an estimated slough flow
32
-
-
-
"""
~Table 2-9.Cross sectional profile sites in Side Slough 8A (RM
125.3),1983 •
..-
Staff Date
Site Gage Obtained Agency
Mouth 125.3W5 10/19/83 ADF&G
Upper Backwater 125.3S6 7/18/83 ADF&G
Lower Slough 8A 125.3S4 7/18/83 ADF&G,-Discharge Station
NW Channel Q Site 125.3S3 7/18/83 ADF&G
ADF&G Modell 2 1983 ADF&G
Transect 1
ADF&G Modell 2 1983 ADF&G
Transect 2
ADF&G Modell 2 1983 ADF&G
Transect 3
AD F&G Mode 11 2 1983 ADF&G
Transect 4
ADF&G Modell 2 1983 ADF&G
"""Transect 5
ADF&G Modell 2 1983 ADF&G
Transect 6
ADF&G Modell 2 1983 ADF&G
Transect 7
ADF&G Modell 2 1983 ADF&G
Transect 8
pwt 2ADF&G Modell 1983 ADF&G
Transect 9
ADF&G Modell 2 1983 ADF&G
Transect 10
33
Table 2-9 (Continued).
-
Staff Date
Site Gage Obtained Agency
ADF&G Modell 2 1983 ADF&G
Transect 11
NE Channel Head 125.3H7 8/4/83 ADF&G -NW Channel Head 125.3S3 7/18/83 ADF&G
1 Cross section presented in Chapter 7.
2 No staff gage station located at this site.
34
j -_.•..]1 1 )1 ]]1 1 )1 j 1~
SIDE
SLOUGH SA
Ii.STAff GAGr:
.............D'aa CROSS
SECTION
o 1000
~I.""•••.,.e,.,
,,£~
:~.,.
NIVEN_
/
w
U'1
484 MOUTH
GAGE 125.3W5
484 UPPER BACKWATER
GAGE 125.356
480 480
160 180 200 220 240 2410 28010012014080604020o
464
472
4418
456',i , i ,iii ,i , i 8 i •I i j ,i • , •!g , ,i
j 418
zo
5>III
..I
III
III
:>
It:.....460
-.
220 240 2410 280200
I
160 110'00 120 140804104020
•~--'I.DOOch
~_--IS.IOOII"
............--'.llOIl"
~----
••4741~
Z
0 472
j:
of>488
III
..I
III
484
IaI J~.:>
It:.....480
4541
I0
HORIZONTAL DISTANCE (tut)HORIZONTAL DISTANCE (tut)
Figure 2-14.Cross sectional profiles of the staff gage sites in Side Slough8A (RM 125.3)
and water surface elevations corresponding to various mainstem Susitna River
discharges at Gold Creek (USGS gaging station 1529200).
464
480
!476
zo 472
i=
~>468
~
I1J
U4
I1J
:::l
0:I-460
LOWER Q SITE
GAGE 125.3S4
484-.NW CHANNEL HEAD
-GAGE 125.3H2
480-••478~
Z
4721
J It,OOO cf.
0 17,400 a'i
i=~>468~
III
414
III
:::l
0:480I-
, g iii',,i4561 :i , ,ii',i i .I I I • I • I •406'•iii i I g i , i g iii 'i gig i 9 , ,,i i 9 i
o 20 40 60 80 100 120 140 160 180 200 220 240 280 280 o 20 40 80 80 100 120 140 160 180 200 220 240 280 280
HORIZONTAL DISTANCE (full HORIZONTAL DISTANC,E (fa811
w
(J)
464
472
480
NE CHANNEL HEAD
484-.GAGE 125.3H7
j 476
zo
i=
~>468
~
III
I1J
:::l
0:I-460
484~NW CHANNEL Q SITE
.GAGE 125.3S3
480..:476-z
0 472
i=<t.>466
I1J
..I
I1J
464
I1J
:::l
0:
I-460
456 1 :i •iii ,iii :iii ii'I •i 'i 6 , ,i &,
o 20 40 60 80 100 120 140 160 180 200 220 240 260 280
456'iii , ,i •iii iii i • ,g i • i g ,gig ft g i
o 20 40 60 80 100 120 140 160 180 200 220 240 260 280
HOR IZONTAL DISTANCE (f88t!HORIZONTAL DISTANCE (full
Figure 2-14 (continued).Cross sectional profiles of the staff gage sites in Side Slough 8A
(RM 125.3)and water surface elevations corresponding to various
mainstem Susitna River discharges at Gold Creek (USGS gaging station
1529200).
J J J ]j I "I J j J .1 I J J )~]
D B ..~--1 J 1 J 1 1 'I -)1
SLOUGH 9 THALWEG PROFILE
o
r;-
SURVEY OATE;820824/820812/821012
MAlt/STEM Q 10'Gold Croak),12,500114,40011,950 ofo
SITE Q (..."8 01.
SUSITNA RIVER REACH GRAOIENT.8.111/."
SITE GRADIENT;13.8 It'ml •
--WATER SURFACE ON OATE OF SURVEY
c:::::J liLT'UNOI•.;...:,;...·3 GRAVEL I RUBBLE.
~COBBLe ,BOULDER
--WATER SURFACE fROM STAGE OATA
610
&OIl
590
~
z
0600
~
ILl
-'ILl
~l5elIl =~
I-22,100 <l.~~
.;~1ti6t .......~dfff,/ffi
W
"'-J
60tQQ5lltOOllOiOO45<0040t003lltOOlIOtOO2lltOO20i0015<0010t005<000'00-5<00
*I i j I I j·_~·-;·-i I IADF8.0 MOOEUtiG SrUDY.196iU
-IOtOO iii • ,j I I I I iii i •iii iii Iii »iii iii Iii i i »i iii Iii ,ii'i i •I • • • •Iii i •i i • , i
STREAMBED STATION (fBBt)
Figure 2-15.Streambed (thalweg)profile of Side Slough 9 (RM 128.3)and water surface elevations
corresponding to various mainstem Susitna River discharges at Gold Creek (USGS gaging
station 1529200).
Table 2-10.Cross sectional profile sites in Side Slough 9 (RM
128.3),1983.
~
Staff Date
Site Gage Obtained Agency
Mouth 128.3W3 9/14/83 ADF&G ,~
ADF&G Modell 2 8/3/83 ADF&G
Transect 1 "'"
ADF&G Modell 2 1983 ADF&G
Transect 2
ADF&G Mode,l 2 1983 ADF&G
Transect 4 -ADF&G Mode,l 128.351 1983 ADF&G
Transect 6
Q Station -
ADF&G Modell 2 1983 ADF&G
Transect 7
ADF&G Modell 2 1983 ADF&G
Transect 8
~
ADF&G Modell 2 1983 ADF&G
Transect 9
ADF&G Modell 2 "sa1983ADF&G
Transect 10
Head l28.3H3 8/23/83 ADF&G -,
1 Cross section presented in Chapter 7.
2 No staff gage station located at this site.
38
~-
-
j 1 ])1 i »II I j -J 1 J )
588'.iii i ;i , i i •i , • , ,iii , i
iilU
SIDE
SLOUGH 9
A STAfF GAGE
.....-.AOFaG CROSS
SECTION
'----------''111
612
';60B
.:
604zo
i=600«>III
oJ 596
III
III
;:l 592
0::
I-
Q SITE
GAGE 128.3H2
L:::I ~::::::::~ID.100c:',
o 20 40 60 80 100 120 140 160 leo 200
HORIZONTAL DISTANCE (r..11
w
~
HEAD
GAGE 128.3H2
612
5B8 1 ii'i •iii ;iii •iii .,iii •iii.II •I I I ~,i 8
o 20 40 60 80 100 120 140 160 180 ZOO 220 240 360 380 400 420
~'"'1~:--....."""===~~~~=........-----....._=---_//~0«=",100".
>'~~~
IIIiii 596...
~592
I-
592
566
0 20 40 60 60 'DO 120 140 160 180 200
612,MOUTH
GAGE 128.3W3
I
~606
.:-604z
'2
t--600«>....
....J
IIJ
....
::>
D:
f-
HORIZONTAL DISTANCE (feel I HORIZONTAL DISTANCE (feet)
Figure 2-16.Cross sectional profiles of the staff gage sites in Side Slough 9 (RM
128.3)and water surface elevations corresponding to various mainstem
Susitna River discharges at Gold Creek (USGS gaging station 1529200).
of 5 cfs.The thalweg profile of Slough 9A is presented in Figure 2-17.
Although a backwater area has been observed at Slough 9A,data necessary
to determine the extent of the backwater area have not been collected.
The mouth (backwater area)is composed primarily of silt and sand.
Above the backwater area the slough is characterized by a series of
riffles and pools.Although cobble/boulder is the predominant
substrate,gravel and rubble are found in the riffle areas.Silt/sand
deposits are contained in the pool areas.
The gradient of Side Slough 9A is 15.7 ft/mi and the adjacent mainstem
gradient is 11.1 ft/mi.
Cross sectional survey data were not collected at Side Slough 9A.
3.2.6 Side Slough 11 (RM 135.7)
Side Slough 11 (RM 135.7)is located on the east bank of the Susitna
River and is approximately one mile long.The slough is separated from
the mainstem by a large vegetated island.The head and mouth of Slough
11 are joined by side channels of the mainstem Susitna River.
The thalweg profile (Figure 2-18)of Slough 11 was developed from data
collected at a non-breaching mainstem discharge of 6,600 cfs and an
estimated slough flow of 3 cfs.At mainstem discharges between 10,600
and 37,000 cfs the backwater area extends approximately 200 ft upstream.
Substrate in the backwater area is mainly gravel/rubble with silt and
sand deposits.Above the backwater area,substrate in Side Slough 11 is
predominantly gravel/rubble.The upper portion of the slough is
composed primarily of cobble/boulder substrate.
The gradient of Slough 11 is 19.8 ft/mi while the corresponding mainstem
gradient is 10.3 ft/mi.
Cross sectional profile data were collected at three staff gage loca-
tions in Side Slough 11 (Table 2-11).The cross sectional profiles are
presented in Figure 2-19.
3.2.7 Side Sloughs 16/16B (RM 137.7)
Side Sloughs 16 and 16B (RM 137.7)are located on the west bank of the
Susitna River.The mouth of Slough 16B is joined by the head of Slough
16.The Slough 16/16B complex is approximately 0.6 miles long.Each
slough is separated from the mainstem by a large gravel bar and a well
vegetated island.
One thalweg profile of the Slough 16/16B complex was developed (Figure
2-20).The thalweg survey data were collected during a non-breaching
mainstem discharge of 16,500 cfs and an estimated slough flow of less
than 1 cfs.At this time,a backwater area was observed extending
approximately 600 feet upstream from the mouth of Slough 16.No stage
and correspondi ng di scharge data were coll ected to further defi ne the
40
"'"'
i J 1 i
SlOUGH 9A
1 j ~l J )1 J ~l
SLOUGH 9A THALWEG PROFILE
+:-
~-•••.:
z
0
;:::•••":-..
oJ..
...
:::I •••It....
C STUDY PROfiLE AREA
411Af"MnO ITATI"'.
SURVEY DATl:8309Z9
U,AINSTi"W Q lat Gol4 Crllll),8.40q ,Ito
OIYE Q hat),5 cia
susiTNA.RlvlR REACH GRADIENT I 1I.I't1",i
Bill GRADllNT:16.1 tt/",i
--WAlER SURFACE.ON DATE Of SURVU
c:J SILT I SAND
181I ...VEL I RU ••LE
I8BI COili'Lll BOULDER
- --DEPTH lSTIW"TED
0+00 '+00 10+00 '''00 21»00 u+oo 50-1-00
STREAMBED STATION I'",I
Figure 2-17.Streambed (thalweg)profile of Side Slough 9A (RM 133.2)and water surface
elevations corresponding to various mainstem Susitna River discharges at Gold
Creek (USGS gaging station 1529200).
SLOUGH II THALWEG PROFILE
685
SLOUGH II
rEl PROfiLE STUDY AREA
.6.sTREAM BED STATION
SURVEY DATE:821017
MAINSTEN Q (a'Gold C,,,k).6,660 ch
SITE Q 1..11,3 cl.
SUSITNA RIVER REACH GRADIENT'10.3 fl m'
SITE GRADIENT,19.8 111m'
--WATER SURFACE ON DATE OF SURVEY
P:~Y'I SILT I SAND
(;-.:;:::!I GRAVEL I RUBBLE
~COBBLE I BOULDER
--WATER SURFACE FROM STAGE DATA
-Po
N
680
G>
.2!
-675
Za
t-
<I:>
W
..J
L&l 670
W::>
0:
t-
665
d.~.,(:1527,000 cis .':'::.....~.:.~:.
~fs .':..::.:':-:•
10,600 t:h--:-:r<~[f;;;;;;;':....'"
50+0045-+0040"-0035+0030-10025"-0020+0015+0010+005-1000-100-5-100
660 I 1 •__.__•I
-IO-+O~'iii iii ii'• , ,I 'i •iii ••iii iii iii iii iii iii iii Iii d •ii'i •iii iii
STREAMBED STATION lIeet)
Figure 2-18.Streambed (thalweg)profile of Side Slough 11 (RM 135.7)and water surface elevations
corresponding to various mainstem Susitna River discharges at Gold Creek (USGS gaging
station 1529200).
I !1 )J I J J J )I .J J..~I I I J
Table 2-11.Cross sectional profile sites in Side Slough 11 (RM
135.7),1983.
Staff Date
Site Gage Obtained Agency
~
Mouth 135.3Wl 10/19/83 ADF&G
Discharge Station 135.3S6 6/29/83 ADF&G
Head 135.3H3 7/28/82 R&M
Consultants
-
-
43
SIDE
SLOUGH II
.6 .u"'CII:
....-...,u eftOIinCTlo",. ...
L..;m-J......."'....'..
.92~Q SITE.GAGE 835.3S6
'"l "4
Zl
0 ,eo
S>'7'III
...I
III
III '72
:;)
It:...,.,
I"0 ao 40 .0
-11,200a.a~1,,'OOCIftl
.........'0••00..'
10 100 120 140 110 110 200
HORIZONTAL DISTANCE (le.ll
~
~
HORIZONTAL DISTANCE (,..ll
B84 '.iii iii i 'i i j •••,i 4 i : i •ij i Jig i i A 4 l ij iii ii',&i 3 i 4 Ioro~10 10 ~~~__~~~~~~~
HORIZONTAL DISTANCE If..tl
HEAD
GAGE 136.3H3
"2..,
i "4:.
~110
t=~If.
!j
III
III '72
:;)
It:..............J 1f.IOO d................7 '1.100."
-----,;lIP ':1:::::~,
MOUTH
GAGE 135.3WI
692
'"
~•:.81.
z
o '110S
>87'III
...I
i&J IT2
III
i.....,
Figure 2-19.Cross sectional profiles of the staff gage sites in Side Slough 11 (RM 135.7)and
water surface elevations corresponding to various mainstem Susitna River discharges
at Gold Creek (USGS gaging station 1529200).
1 I J )I 1 J )j ~J J ~I I ••i I
-1]1 -I 1 J 1 ,)t J "1 j 1
SLOUGH i6/16B
THALWEG PROFILE
SLOUGH 16/1611 t
?Ii
'50105
13 PRDflLE STuDY AfIIEAIASTRIUIIBEDS1Al"ON
SURVEY D4TE",B)0111
MAINST£M Q (01 "old C"..I:16,5oo,.h
SirE Q:<leta
SUSITNA RIVU REACH GRAOIENT,10.9 fI/mi
SITE GRI-OIEN1::tg~~:~~~~I;.~I~~~i
--WATER SURFACE ON OATE OF SURVEY
E.r:d BILT/SAND
mIl GRAVEL /RUBBLE
r;am COBBLE /BOULDER
~
()1
105..
'"0
100~
"'..J
"'~
II:695..
OtOO 5t-OO 10+00 15+00-~(HOO 251'00 )OtOO
Figure 2-20.
STREAMBED STATION lteet)
Streambed (thalweg)profile of Side Slough 16/16B (RM 137.7)and surveyed water
surface elevation corresponding to a mainstem Susitna River discharge of 16,500
cfs at Gold Creek (USGS gaging station 1529200).
backwater effects which occur in Side Slough 16.A backwater area has
not been observed at the mouth of Side Slough 16B.
Substrate in the backwater area of Slough 16 is primarily silt and sand.
The upper portion of Slough 16,and Slough 16B are characterized by a
series of pools and riffles.Substrate is composed mainly of gravel and
rubble,however,cobble/boulder are found in some areas.The pool areas
are deposited with silt and sand.
The gradient of Slough 16 is 9.9 ft/mi,while Slough 16B has a gradient
of 17.2 ft/mi.The gradient of the mainstem adjacent to the Slough
16/16B complex is 10.9 ft/mi.
Cross sectional profile data were collected at only two staff gage
locations in Slough 16B (Table 2-12).The resultant figures are
presented in Figure 2-21.Cross section surveys were not conducted at
Slough 16.
3.2.8 Side Slough 20 (RM 140.2)
Side Slough 20 (RM 140.2)located on the south bank of the Susitna River
is a single channel slough approximately 0.5 mi long.The slough is
separated from the mainstem Susitna River by a large vegetated island.
Two tributaries flow into Slough 20.Waterfall Creek enters approxi-
mately 1,500 feet upstream from the mouth,and a small unnamed tributary
enters near the head of the slough.
The thalweg profile (Figure 2-22)of Slough 20 was developed from data
collected during a non-breaching mainstem discharge of 18,600 cfs and a
slough flow of 5 cfs.At mainstem discharges exceeding 8,480 cfs the
backwater area extends approximately 300 feet into the slough.The
backwater area increases at higher mainstem discharges.Silt and sand
predominate in the backwater area of Side Slough 20.Above the
backwater area,Side Slough 20 consists of alternating pools and
riffles.Substrate is composed of gravel/rubble with areas of
cobble/boulder at the head.Pools contain deposits of silt and sand.
The gradient of Side Slough 20 is 13.5 ft/mi and the corresponding
mainstem gradient is 13.4 ft/mi.
Cross sectional surveys were conducted in 1982 by R&M Consul tants at
three staff gage locations (Table 2-13).The cross sections are
presented in Figure 2-23.
3.2.9 Side Slough 21 (RM 141.8)
Side Slough 21 located on the south bank of the Susitna River,is
approximately 3,000 ft long.The slough is separated from the mainstem
by a large vegetated gravel bar.Approximately 1,500 feet upstream from
the mouth,Slough 21 divides into two forks:a northwest (left)channel
and a northeast (right)channel.The mouth of Slough 21 flows directly
into the head of Side Channel 21 where a pool is formed (Figure 2-24).
46
-
-
~,
-
,~,
Table 2-12.Cross sectional profile sites in Side Slough 16B (RM
137.9),1982 .
I
.-
Staff Date
Site Gage Obtained Agency
Discharge Station 138.0S5 7/24/82 R&M
Consultants
Head 138.0H3 7/22/82 R&M
Consultants
-
-
"'"",
47
SIDE SLOUGH 168
a.STAFF GAG!
~'DF II G CRO$!
Sl:CTfDN
~uo
'-rnr-'
IJl••••••I ••••a
_J4I",rflfA 1I1V-11f-
I ~i
714 Q STATION
GAGE las.oss
712
710 -•.e
701
z
2 701~<>704IIJ
-l
III 702
III
J _Z8,ZOOct.II:700 --11.7DDc.h~""'\
ne
n.
0 20 40 60 BO 100 120 '40 160 110 200 .,
HORIZONTAL DISTANCE (feet I
7'4 HEAD
GAGE las.OHa
712
710
0;
.:!701 -Z
S!7011
~Z~,2.00c.fI;<>704
IIJ 20,ZOOc.fD -,-l
IIJ 102
IIJ
J 700a:
l-
691 """\
B91 I
0 20 40 110 10 100 120 140 160 110 200
HORIZONTAL DISTANCE (feet)
~,
Figure 2-21.Cross sectional profiles of the staff gage sites in Side
Slough 168 (RM 137.9)and water surface elevations
corresponding to various mainstem Susitna River discharges
at Gold Creek (USGS gaging station 1529200).
48
1 )J J j J 1 J 1 j ])1 J 1
SLOUGH 20 \..1 SLOUGH 20 THALWEG PROFILE
.po
\D
735
---SU S /1"4'4
".'-,
-TIY~I9..............
J40_~E&
SURVEY'DATE::630115
"'I"STEW Q 101 Gold C".kl:IB.60D ct,
SITE Q:15 et.
SUSITNA RIVI[R RE:ACH GRADIENT:13.4 fl/mi
SITE GRADIENT:13.15 tl/mi
--WATER SURfACE:ON DATE:Of 5URYE'W'o SILT/SANO
~GRAVEll RUBBLE
~COSBlE:I BOULDER
--WATER SUIUAC[FROM STAGE DATA
730
'"125
:::>
0:...
720
0':00 5+"00 IO-tOO Hi+OO ZOtOO 25tOO 30tOO
Figure 2-22.
STREAMBED STATION (Ieet)
Streambed (thalweg)profile of Side Slough 20 (RM 140.2)and water surface
elevations corresponding to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200).
Table 2-13.Cross sectional profile sites in Side Slough 20 (RM
140.2),1982.
50
~,
"""
-
1 )1 1 ))J 1 J J 1 I ~J "ji
~SUSlrNA RIVER _________
740 1 HEAD
738 GAGE 140lH3
~•13_•~
Z 1~4
!2
1321 -------I-.........-::::;I 3Z,500 ttl
oC ...J 2Z.S00cf.
>~21,500'"
III 7>0
..J
III 128
III
~lZU
0:
I-12.
122
100 120 140 180 180 200 220~o 40 10 80o
."~~~~'~~';;h '20'
.,.....
$140,1
A STAff /iAlilHCROSSHCfloH
~---!..J.
IIU1..._....,
HORIZONTAL DISTANCE U ••"
1401 Q SITE
lU GAGE 140.185
'=•138•~
Z 134
0
~lU
III 730
..J
III lui \I 32,eiOO cf.I 17,OOOtt•
_32,500 c',III
126 \=---'8,480 cf.~
0:
17.000ch I-
8,480cr.124
122
tTl
I-'
1.01 MOUTH
7>8 GAGE 140.IW4
!736
z n.
0
S 132
>...no
..J...120...
~no0:
I-
12.
122 ,I
0 20 40 60 ~100 120 140 I~180 ~2~o 20 40 60 80 100 120 140 180 180 200 220
HORIZONTAL DISTANCE If..,)HORIZONTAL DISTANCE u..n
Figure 2-23.Cross sectional profiles of the staff gage sites in Side Slough 20 (RM 140.2)
and water surface elevations corresponding to various mainstem Susitna River
discharges at Gold Creek (USGS gaging station 1529200).
SLOUGH 21
THALWEG PROFILE
SLOUGH 21
m-PROf ILl!STUll'll AREA.a -STREAMBED STATION
//SURVE~DATE,821014
MAINSTEM Q (at Gold CruU;1.800 d,
SITE 0,5 ell
SUSITIIA RIVER REACH GRADIENT,12.1 111m.
SiTE GRADIENT,22.9 111m;
--WATER SURfACE ON DATE Of SURVEY
_8ILT/SAND
1m CD88LE I BOULDER
--WATER SURfACE fROM STAGE DATA
155..,SLOUGH l!1 NORTHWEST
I LEfT CHANNEI-l
U1
N
150
145
u
~
zo
~140
>...
..J......
~
0:735....
730
I Z :I"eo 6.l'II
STUDY TRANSECT l-OCATIONS
(AOf a Ii MOOELING STUDY,'982)
IAOfftG GAGE'
140.652
1••.:
zo
~750
"....
..J......
;>
'"....
•iii iii iii I •74:i If iii •iii I
725 'i ,I I iii Iii ,iii i'iii i I I \iii Iii j Iii iii i •i ,iii iii iii
-15fOO -IOtOO -5+00 OtOO ~tOO 10..,00 l~tOO
STREAMBED STATION 1,..11
20tOO 25tOO 30tOO
Figure 2-24.Streambed (thalweg)profile of Side Slough 21 (RM 141.8)and water surface
elevations corresponding to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200).
1 I },J J I ))j J cJ I I J I I I }
.-
-
-
Thalweg survey data of Side Slough 21 were collected during a mainstem
discharge of 7,800 and an estimated slough flow of 5 cfs.No backwater
has been observed in Side Slough 21.Cobble and boulder are the
predominant substrate types found in Slough 21.The pool areas contain
deposits of silt and sand.
The gradi ent of Si de Slough 21 is 22.9 ft/mi,whi 1e the correspondi ng
mainstem gradient is 12.1 ft/mi.
Cross sectional survey data were collected at eight locations in Side
Slough 21 (Table 2-14).Cross sectional surveys conducted in support of
the physical habitat modeling study are presented in Chapter 7.Cross
sections which correspond to four staff gage locations are presented in
Figure 2-25.
3.2.10 Side Slough 22 (RM 144.2)
Side Slough 22 (RM 144.2)is approximately 0.5 mi long and is located on
the north bank of the Susitna River.The slough is separated from the
mainstem Susitna River by a vegetated island.A small tributary flows
into the slough approximately 2,000 ft upstream from the slough mouth.
The thalweg profile of Slough 22 was developed from data collected at a
non-breaching mainstem discharge of 16,400 cfs and slough flow of 3 cfs
(Figure 2-26).A long riffle extending approximately 300 ft upstream of
the mouth of Slough 22.The next 1,100 ft is characterized by two long,
deep pools.Above the pools,the slough gradi ent increases to form a
riffle area separatig two shallow pools.
An area of backwater extends above the first riffle to the second large
pool,approximately 1,400 ft,at mainstem discharges greater than 23,000
cfs.Cobble and boulder predominate throughout the slough with deposits
of gravel/rubble found in the riffle areas.The pool areas contain sand
and silt.
The overall gradient of Side Slough 22 is 15.0 ft/mi and the corre-
sponding mainstem gradient is 11.5 ft/mi.
Survey data were collected at three staff gage locations in Side Slough
22 (Table 2-15).The resultant cross sectional figures are presented in
Figure 2-27.
3.3 Upland Slough Habitats
Thalweg profile survey data were collected in three upland sloughs in
the Tal keetna to Devil Canyon reach of the Susitna River.The survey
data are presented in Appendix Tables 2-A-14 to 2-A-17.
Two upland sloughs were surveyed for the collection of cross sectional
data.These data are presented in Appendix Tables 2-B-50 and 2-8-54.
The thalweg profile figures and cross sections are presented below by
site.
53
Table 2-14.Cross sectional profile sites in Side Slough 21 (RM 141.8),
1982,1983.-
ADF&G Modell 2 ..
1983 ADF&G
Transect 3
ADF&G Modell 2 ~1983 ADF&G
Transect 4
ADF&G Modell 2 1983 ADF&G ~
Transect 5
ADF&G Mode 11 2 1983 ADF&G
Transect 6
ADF&G Modell 2 1983 ADF&G
Transect 7
Mouth 142.0W5 5/17/83 ADF&G
~~
Discharge Station 142.056 5/17/83 ADF&G
NW Channel Head 142.0H3 7/11/82 R&M
Consultants
NE Channel Head 142.0H1 7/11/82 R&M
Consultants -,
1 Cross section presented in Chapter 7.
2 No staff gage station located at this site.
~
54 ~I
1
U"1
U"1
1
_1&4
!
i5
~
~..
~t-
"}
MOUTH
GAGE 142.0We
•0
Q SlTE
GAG IE 142.0$8
"1 )
...tloOO'"",_DO",
11.1....
HORIZONTAL DISTANCE "(I ..U
",-.1,n:=u:
1
~
",
!
~
S
~
~..:>
~
i5
S
~....
~t-
1
,..
1
BIDI:
.""uGH 2:1
t::.n ..,"'"
l----J,I.....II C.Q'~•"MC1'la.
~
HIM HEAD
ClAGE 142.0H5
HORIZONTAL DISTANC~!full
HE HEAD
BAel 142.0HI
i
........lIe
11.,10011'
j
~,OOlltlll11,;_,"
l ]s
HQRIZONTAL Q'STAHCE Iful)
...nt',.I I ,i , ,iii i
800 ~o ~~~~~"0 MO ~
HORIZONTAL DiSTANCE (tun
Figure 2-25.Cross sectional profiles of the staff gage sites in Side Slough 21
(RM 141.8)and water surface elevati6ns corresponding to vartous
mainstem Susitna River discharges at Gold Creek (USGS gaging station
1529200).
SLOUGH 22 THALWEG PROFILE
---Sus/rNA HI VcR ---
G)144.15
SURVEY DATE,630716
MAINSTEM Q (Df Gald Cr••IIi):t6}400 eh
SiTE Do 3.to
SUSITNA R'VER REACH GIIAD'ENT'11.5 tt/m;
SiTE GRADIENT,'5.0 film;
--IUTEA SURFACE ON DATE Of SURVEY
E[J SILT/UNO
I'Z3 GRAVEL I RUBBLEmCOBBLEIBOULDER
--WATER SURFACE FROM STAGE DATA
Ul
(j)
....
z
Q......>
W
..J
W
'"~
'"....
785
28,200 tff,
780
I -_.- -----"':':":"':"':'l"~';,~J1
77.1 ii,i
STREAMBED STATION 0 ••1)
20;00 25 tOO 30tOO
Figure 2-26.Streambed (thalweg)profile of Side Slough 22 (RM 144.2)and water surface
elevations corresponding to various mainstem Susitna River discharges at
Gold Creek (USGS gaging station 1529200).
I J .1 J •J ,t ~••"I I J
I~
Table 2-15.Cross sectional profile sites in Side Slough 22 (RM 144.2),
1982,1983.
57
~
SiDE SLOUGH 22
A n ....,..Ill:
i--ItI~'IU·O"
o IUO
1.......;m-'
1.,.1
$14'.,
~$"$JTIiA NH/CIl-
U1
00
MOUTH
11l1....J GAGE 144.~W3
!'"
100
z "00;:..>.........
~
'"....
110 ux..00 iOO i!SO 300 ..0 .00 4io tOO "0 IiOQ
HORIZONTAL DISTANCE (,..n
?iii]Q SllE
784 GAGE 144.356.10.
If.-..0
Z ,..5!
I-,....>.."......,....
~no'"..110
,..
'0 100'100 lOO 25Q )00 350 400 480 1500 no .00
HORIZONTAL DISTANCE 0 ..11
200 2$0 "00 UQ ..00 do aoo U,J soc
HORIZONTAL DISTANCE (luU
1 \=::;;0-'\,"....luG 41'1
--II,rOO"6
7&"1 HEAD
10.GAGE 144.3H2....
If.
700
Z
"00;:
"0..>..........,....
::>"0'"..110
'"'0 100 I~O176',Iii iii iii I 'iii iii Iii i i j I
'0 100 I~O ZOO 210 JOO 360 400 4150 11.00 UO 500
HORIZONTAL DISTANCE (tUt)
186..."IUD-SLOUGH
GAGE 144.3S4
..0
..lia:.
zo 781;::..>
OJ..
III 18ft
~
'"..110
Figure 2-27.Cross sectional profiles of the staff gage·sites in Side Slough 22
(RM 144.2)and water surface elevations corresponding to various
mainstem Susitna River discharges at Gold Creek (USGS gaging station
1529200).
J J I Y J .J J I .W •J ~«J ~I J
-
-
-
3.3.1 Upland Slough 6A (RM 112.3)
Upland Slough 6A (RM 112.3)located on the west bank of the Susitna
River,is approximately 1,500 ft long.Approximately 1,200 ft upstream
from the mouth,the slough divides into two forks:a northwest (left)
channel and a northeast (right)channel.A beaver dam is located in
both channels approximately 1,300 ft from the mouth.
The thalweg profile (Figure 2-28)of Upland Slough 6A was constructed
from data collected during a mainstem discharge of 11 ,600 cfs and an
estimated slough flow of less than 1 cfs.A backwater area extends from
the mouth approximately 1,200 feet upstream at mainstem discharges as
low as 0,600 cfs.Substrate in Slough 6A is composed primarily of silt
and sand.'
The gradient of Slough 6A ;s 6.0 ft/m;and the adjacent mainstem
gradient is 10.6 ft/mi.
Cross sectional survey data were collected at two staff gage locations
in Slough 6A (Table 2-16).The cross sectional profiles are presented
in Fi gure 2-29.
3.3.2 Upland Slough 10 (RM 133.8)
Upland Slough 10 (RM 133.8)is located on the west bank of the Susitna
River.Approximately 300 ft from the mouth,Slough 10 divides into two
forks,a northeast (right)channel and a northwest (left)channel.The
northeast channel is approximately 1,000 feet long while the northwest
channel is approximately 1,500 feet in length.Slough 10 flows directly
into Side Channel 10 approximately 400 feet upstream from the mouth of
the side channel.
The thalweg profile (Figure 2-30)of Upland Slough 10 was developed from
survey data collected during a mainstem Susitna River discharge of
12,200 cfs and estimated slough flow of 1ess than 1 cfs.A backwater
area in the northwest channel extends approximately 1,000 ft upstream
from the slough mouth at a mainstem discharge of 12,200 cfs.A
backwater area approximately 300 ft in length was observed in the
northeast channel during the same mainstem discharge.No stage data
were collected to further quantify the extent of the backwater areas at
various mainstem discharges.
Both the northeast and northwest channels are a series of pools and
riffles.Substrate in the northwest channel is boulder/cobble with
deposits of silt and sand in the riffle and pool areas.The northeast
channel is characterized by boulder/cobble with thick d~posits of silt
and sand.
The gradient of the northwest channel is 13.5 ft/mi,while the northeast
channel gradient is 21.8 ft/mi.The corresponding mainstem gradient is
8.9 ft/mi.
Cross sectional survey data were not collected in Slough 10.
59
-SUSlTfiA "WE"-
SLOUGH 6A THALWEG PROFILE
nOUGH 6A
rJJ PROfiLE STUDY AREAe.slREAM8EU slATlON.
$112
",,'1.':~'.:~.""~"':'~."'l"
"''''::.;1,
SURVEY DATE,B50950
IIAItISTEM Q I.,G.ld Cr..k"11,600 .1.
SITE Q 1••Il'~I ,I.
SUSITNA RIVER REACH GRADIENT,10.6 film;
SITE GRAillENT,6.0 II/mi
--WATER SURfACE ON DATE Of SURVEY
C]SILT/SAND
rz:J GR AVEL I RUBBLE
--WATER SURfACE fROM STAGE DATA
ua bEfT CH&~~J!_
___8Iav,r
D...
I
I
I
I
I
I
I
I
40a.....RIGHT CHANNliL
IO.600c:h------------~------~----------~----------------
Z6,OOOch ------------------------------------_
21,700.::11--·
1.,.00,10 ./
400
101
;:)
'"I-
...o
l-
4:>
101 ~oo
J
101
:...
Olo
"--B •••"Da ..
~u wattr B"f'.C.
400
.,,'
0+00 0 ..00 IOtOO 14+00
STREAMBED STATION I tut I
Figure 2-28.Streambed (thalweg)profile of Upland Slough 6A (RM 112.3)and water surface
elevations corresponding to various mainstem Susitna River discharges at Gold
Creek (USGS gaging station 1529200).
'J :I j .1 J J I ••J ,J J.
--
J J J J J
Table 2-16.Cross sectional profil e sites in Upland Slough 6A (RM
112.3),1983.
"""'"
Staff Date
Site Gage Obtained Agency
Mouth 112.3W1 7/5/83 ADF&G
Backwater 112.3S3 9/10/83 ADF&G
-
.-
61
120
~
.....rO.c
\
10080
-SiJs/rNA R/VER-
HORIZONTAL DISTANCE (feet)
,;;;;;;;:::=::::;:;::::::::======::;;::;2:-:S1~7ODofll__I.~at.
"'""---.....,r----IOtSOOch
A STA~~IAU
H::~t,Z.C-.-t ,
••IT
UPLAND SLOUGH 6A
470 BACKWATER
48 GAGE 1t 2.383..•~
z
S!
~c>...
..J -JI.7ooeh...--1_,IOOd.
1&1 45 --.a.eaoc'":l
ll::414~
452
450
0 20 40 50 80 100 120
HORIZONTAL DISTANCE (f••t)
..70
468--•41111•-484
Z
52 482
~~480
1&1
..J 4581&1
1&1 458
:l
ll::454~
452
450
0 20 40 80
Figure 2-29.Cross sectional profiles of the staff gage sites in Upland
Slough 6A (RM 112.3)and water surface elevations corresponding
to various mainstem Susitna River discharoes at Gold Creek
(USGS gaging station 1529200),-
62
J I }1 1 1 1 -fi Ii
sURVEY OAT£,6309U --WAT£R SURFAC£ON DATE OF SURVEY
M"'JNST~M Q (af Gold Cr..ld;12,200 cfs ~SILT/SAND
SITE Q:<:I eft G GRAVEL I RUa&LE
SU5ITNA RIVER REACH GRA.PIENT:9.D ft/mi ~COBBLE:I BOULDER
SITE GRADIENT;NORTHUST cHANNEL:21.8 "/1lI1
NOftTHWEST CHANNEL:I ).!Io tt/ml
SLOUGH 10 NORTHEAsT
(RIGHT CHANNEL I
SLOUGH 10 THALWEG PROFILE
647 , , .Iii iii iii
j
~660
!:t~
~
o
SL.OU<!I!JQ.
o Profil_Study Areo
/
O'l
W
e+oo 10tOO
STREAMBED STATION (I..tI
15.00
!650
Z
0;:
'">...
.J...
W
:::>a:
I-
645
SLOUGH 10 NORTHWEST
(LEfT CHANNELl
4+00 5tOO 10tOO 16.00 20+00
STREAMBED STATiON lfoell
Figure 2-30.Streambed (thalweg)profile of Upland Slough 10 (RM 133.8)and surveyed water
surface elevation corresponding to a mainstem Susitna River discharge of 12,200
cfs at Gold Creek (USGS gaging station 1529200).
3.3.3 Upland Slough 19 (RM 140.0)
Upland Slough 19 (RM 140.0)is approximately 1,000 ft long and is
located on the east bank of the Susitna River.A side channel of the
Susitna River connects the slough with the mainstem ..
A thalweg profile was developed in Slough 19 (Figure 2-31)during a
mainstem discharge of 10,300 cfs and slough flow less than 1 cfs.At
mainstem discharges exceeding 10,700 cfs,the backwater area extends
approximately 300 feet up from the slough mouth.
Substrate in the backwater area consists of silt and sand.Upstream of
the backwater area the substrate is composed of gravel/rubble or cobble/-
boulder.
The gradient of Upland Slough 19 is 16.9 ft/mi and the adjacent mainstem
gradient is 14.1 ft/mi.
Cross sectional survey data were collected at three staff gage locations
in Upland Slough 19 (Table 2-17).The cross sectional profiles are
presented in Figure 2-32.
3.4 Tributary Habitats
Cross sectional survey data were collected at discharge sites located at
four tributaries in the Talkeetna to Devil Canyon reach of the Susitna
River.The survey data are presented in Appendix Tbles 2-8-55 to
2-8-58.Cross sectional profiles are presented below by site.
3.4.1 Fourth of July Creek (RM 131.1)
Fourth of July Creek (RM 131.1)is a steep gradient,clear water stream
with a narrow streambed channel.A cross sectional profile of the
discharge station is presented in Figure 2-33.
3.4.2 Gold Creek (RM 136.8)
Gold Creek is located on the east bank of the Susitna River.It can be
characterized as a steep gradient,fast running stream with many pool
and riffle areas.A cross sectional profile developed for the discharge
station in Gold Creek is presented in Figure 2-34..
3.4.3 Indian River (RM 138.6)
Indian River (Figure 2-1)is located on the east bank of the Susitna
River.The channel is highly braided from the mouth to an area approxi-
mately one mile upstream.A cross sectional profile of the discharge
station in Indian River was developed from streamflow measurement data
(Figure 2-35).The stage/discharge investigations of Indian River
(Chapter 1)indicate that substantial bedload movement occurred at the
discharge station in 1983.
64
-
-
-
-
-
1 1 i ))~.1 ~-J ---j
SLOUGH 19
THALWEG PROFILE
SURVEY DATE·,810926
MAINSTEM Q (01 Gold Creek),10,300 eta
SITE Q,<I efs
SUSITNA RIVER REACH GRADIENT'14.1 ftlmi
SITE GRADIENT:16.9 film;
-WATER SURFACE ON DATE OF SURVEY
li;\%i;WJ£:it SILT I SAN D
1':";'~iJ GRAVEL I RUBBLE
F.1~!~M COBBLE I BOULDER
--WATER SURFACE FROM STAGE AREA
l!l140
RIVER -__SUS I rNA
[;j PROFILE STUDY "RU
/1;,STRE"MBED ST"T10N
SLOUGH III
I
C':~-~C'~::'~'."M....·'·....i···"··...'"'\......,..•.,:.J.:lJi';;..;..y~J
125
-••...
O'l
<.TI
z
o
~
ct>
III
--'
III
III
:J
a:
~
26,800cf.~
20 900 cis 1'.1/...·.~li!!..:."I "-.•,~.l n'l
720-1 17,000 cis --
715
OtOO 5+00 tOtOO
STREAMBED STATION (flit)
Figure 2-31.Streambed (thalweg)profile of Upland Slough 19 (RM 140.0)and water surface
elevations corresponding to various mainstem Susitna River discharges at Gold
Creek (USGS gaging station 1529200).
Table 2-17.Cross sectional profile sites within Upland Slough 19 (RM
140.0),1983.
Staff Date ~
Site Gage Obtained Agency
Access 140.OVn 9/14/83 ADF&G
Below Mouth 140.053 9/14/83 ADF&G
Discharge Station 140.054 9/14/83 ADF&G p"
-
'"""
66
I +1 1 -J ])]J l -1
liD16010104020
BELOW MOUTH
GAGE 14O.0S3
r-J '1.1000'•==-............---:c:::::....10.TOO ...
--I /-8,100 •••
752
110
i 721::;
Z 721
0
~72.
IaI
712
....
l&I 720
IaI 711::.
II:~7'1
714
b
IOPLANDSLOUGH19
lJt.STAFf UIN.i&JIUli
.........AOF eG '''OSSSEctION
~'••,,::.1.:'1'1'-_--SUS ITNA RIVER-
HORIZONTAL DISTANCE (teel)
0'\
"'.J
112 ACCESS 112]Q SITE
730 GAGE 14O.0WI 730 GAGE 140.054
•721 •721~~
Z 726 726Z00
i=724 724 •I-4:4:>722 >722IaIIII....720 ....
IaI IaI 720
III 711 IaI 711:)::.
II:716 II:
l-I-718
714 714
0 20 40 10 10 100 120 0 20 40 10 10 100 Iilo
HORIZONTAL DISTANCE ifill)HORIZONTAL DISTANCE Ifeel)
Figure 2-32.Cross sectional profiles of the staff gage sites in Upland Slough 19 (RM 140.0)and water
surface elevations corresponding to various mainstem SusitnaRiver discharges at Gold
Creek (USGS gaging station 1529200).
-
4th OF JULY CR .
.0.STAFF GAGE
t--tAOFliG CROSS
SECTION
1 2jO
-
-
-
3530252015105
\-..,__!lUi ch
~;::============::j--16.4 ch,--2.2cfl
Q SITE
GAGE 131.ITI
o
622
620....,.---r----.,....---r---..,..--....,~-.....,r_--.,
624
626
628
630
zo
I-
<C>LL1
..J
LL1
LL1
~
0:::
I-
-
--4D
4D....
HORIZONTAL DISTANCE (feet)
Figure 2-33.Cross sectional profile of the discharge station
in Fourth of July Creek (RM 131.1)and water
surface elevations corresponding to various
st reamfl ows .
68 -
f
"
r
~I
~
I
I
GOLD CREEK
6 STAFF GAGE
......--tADFlIIG CROSS
SECTION \
704 Q SITE
GAGE 136.8TI--702G
CD--Z 7000
I-
<{
>,~LU 698..J
LU
LU -153.6 ch
::>696 58.0 cfl
0::34.1 ch
I-
7060504030zo10
694-+__..,.__..,.--...,..--""""--"",,,,--.,..--..
o
HORIZONTAL DISTANCE (feet)
Figure 2-34.Cross sectional profile of the discharge station in
Gold Creek (RM 136.8)and water surface elevations
correspondi!ng to various streamflows.
69
INDIAN RIVER
ll.STAFF GAGE
~ADFaG CROSS
SECTION
a 100
I I
FEET
I A"roa.Soo'o)
-
....
Q SITE
GAGE 138.6T2
....-,.-4t19.0Gh
It====================-::f 173.0ch'---97.9cf.
zo
t-<C 848
>LIJ
~
LIJ
LIJ
:)
0:846
t-
eSI
-G eeo
a:l--
o 10 20 30 40 50 60 70 80 90 100
HORIZONTAL DISTANCE (feet)
Figure 2-35.Cross sectional profile of the discharge station in
,Indian River (RM 138.6)and water surface elevations
corresponding to various streamfiows.-
70 -
-
~
I
r-
,I
,-
....
!
3.4.4 Portage Creek (RM 148.9)
Portage Creek is located on the north bank of the Susitna River.It is
a large,fast running tributary with many pool and riffle areas.A
cross sectional prof"ile of the discharge station was developed from
streamflow measurement data (Figure 2-36).
3.5 General Results
Figure 2-37 is a gradient profile of the reach of the Susitna River from
Talkeetna to Devil Canyon and includes the locations of the channel
geometry study sites.This profile was developed form data collected by
R&M Consultants in 1982 (R&M,1982).
Table 2-18 lists the gradients of the thalweg profile study sites,the
adjacent mainstem Susitna River gradients,and the gradients of the
backwater areas within the study sites.Also included are the ranges
of the backwater areas observed and the corresponding range of mainstem
Susitna River discharges.
71
PORTAGE CREEK
t::J.STAFF GAGE
,---,ADF8JG CROSS
~SECTION
o ZIIO,1
~EET
CAptlr•••S••lo)
~,
-
267.0 ct.
~-----------------------....---1088.0 ctl
789.0 cis
843 Q SiTE
GAG E 148.aT I-842CD
CD--Z 841
0
....840«>1Ll
-'
1Ll 839
L&.I
:::::l 838a:....
837 ......--....-.,..-.....-....,.--,....-.,..-..,.-...,.--,....-..,
o 10 20 30 40 50 60 70 80 90 100 _.
HORIZONTAL DISTANCE (feet)
Figure 2-36.Cross sectional profile of the discharge station in
Portage Creek (RM 148.8)and water surface elevations
corresponding to various streamflows.
72
1 J ~~1 j ~C~~~-J -~~1 ~~...~~J ~I ~~---=-..:.1tI ~~~~~:JI,
......,
w
900
800
700....
Gl
Gl...
zoi=600
<l:>W
.....l
W
w 500
;:)a::
I--
400
300
WHISKERSfSWJ.H'....."ITI
fS:U.GH 6A I U)
MAINSTEM]I (SC)
SUSITNA RIVER GRADIENT
Middle Reach
L.-.J DI,tance from Head to Mouth
Relative to Su,ltna River Mile
SC -Side Channel
U -Upland Slough
S -Side Slough
T -Tributary
145140135125130
RIVER MILE
120115110105
200-1 I I I I I I I I !I I I
98 100
Figure 2-37.Gradient profile of the Middle Reach of the Susitna River (Talkeetna to Portage Creek).
TABLE 2-18.Summary of site gradients,adjacent mainstem Susitna River gradients,and backwater areas in side channels and sloughs
(side and upland)corresponding to mainstem discharges,1983.
RANGE OF
OBSERVED CORRESPONDING
BACKWATER AREA RANGE OF
SITE MAl NSTEM GRADIENT OF FROM MOUTH MAl NSTEM
GRADIENT GRADIENT BACKWATER AREA OF STUDY SITE DISCHARGE
SITE RM (H/MI)(FT IMI )(FTlMI)(FT)(CFS)
Mainstem 2 Side Channel -NW 114.4 10.2 9.2 6.33 800 -2,000 9,000 -31,700
Mainstem 2 Side Channel -NE 114.4 12.5 9.2 --No backwater area observed
Side Channel 10 133.8 22.3 9.0 22.4 400 -1,200 12,200 -22,700
Upper Side Channel 11 136.2 23.6 16.6 24.4 5001 11,400 -31,700
Side Channel 21 140.6 12.4 16.6 9.5 1,5001 16,000 -33,000
......,
Whiskers Creek Side Slough 101.2 9.2 4.9 9.5 500 -1,000 12,200 -31,800.j::::.
Side Slough 8A 125.3 11.5 9.3 10.8 1,000 -1,400 10,600 -31,000
Side Slough 9 128.3 13.8 8.7 12.4 5001 15,200 -22,700
Side Slough 9A 133.2 15.7 11.1 --No data
Side Slough 11 135.3 19.8 10.3 17.0 200 1 10,600 -32,000
Side Slough 16 137.7 9.9 10.9 6.9 600 16,5002
Side Slough 16B 137.9 17 .2 10.9 --No backwater area observed
Side Slough 20 140.1 13.5 13.4 26.1 300 1 8,480 -32,000
Side Slough 21 141.8 22.9 12.1 --No backwater area observed
Side Slough 22 144.3 15.0 11.5 9.6 1,4001 22,900 -28,000
Upland Slough 6A 112.3 6.0 10.6 10.6 1,2001 10,600 -26,000
Upland Slough 10 NE 133.8 21.8 9.0 20.2 300 2 12,2002
Upland Slough 10 NW 133.8 13.5 9.0 2.6 1,0002 12,2002
Upland Slough 19 140.0 16.9 14.1 1.0 3001 10,300 -26,800
Backwater area restricted over a range of mainstem discharges.
2 Observation limited to single mainstem discharge with backwater area noted during thalweg survey •
J I J I .J I 1 J I ••J J •J I ~.I J,'J3..
-
,~
4.0 DISCUSSION
Channel geometry data have been collected since 1982 at 21 side channel,
upland and side slough,and tributary habitats located in the middle
reach of the Susitna River.These data were collected to describe the
relative channel characteristics of these study sites.This data
supports the evaluation of passage conditions (Sautner et al.1984)and
spawning (Vincent-Lang et al.1984)and rearing (Schmidt et al.1984)
habitat modeling within these study sites and the evaluation of mainstem
di scharge effects on the hydraul ic conditi ons of these study sites
(Quane et al.1984).
Thalweg profiles,depicting the streambed gradient and substrate
composition,were constructed for four side channel and 13 upland and
side sloughs.Generally,upland and side sloughs were found to have
less gradients than do side channels.Ranges and means of gradients
measured at study slough and side channels are 6.0-22.9 ft/mi and 14.8
ft/mi and 10.2 to 23.6 ft/mi and 16.2 ft/mi,respectively (Table 2-18).
Additionally,substrates in upland and side sloughs are smaller than
substrate observed in side channels.
Water surface elevations obtained at high,medium,and low mainstem
discharges were illustrated on the thalweg profile of each study site to
depict the presence and extent of backwater as a function of mainstem
discharge at each study site.Backwater was observed to occur during
evaluated discharges at all but two of the study sites (Side Sloughs 168
and 21).Backwater areas,extending up tq 1,500 ft,were found to occur
at the remaining 15 slough and side channel study sites (Table 2-18).
Cross section profile,illustrating the cross sectional channel
characteristics of slough and side channel study sites,were also
constructed for selected stage and discharge monitoring stations within
study sites.These profiles were used to validate assumptions used in
the derivation of rating curves.Additionally,water surface
elevations,obtained from stage reading at high,medium,and low flows,
were superimposed on each cross section profile to graphically depict
the response of wetted surface area to changes in mainstem discharge at
each study site.
75
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5.0 GLOSSARY
Backwater Area - A reach of stream with reduced or no velocity and a
rise in stage resulting from a hydraul ic 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.
Clearwater Plume -the extension of the clearwater of a tributary into
the turbid mainstem at and below the confluenceof the two.Due to
the different densities of the mainstem and tributary waters,these
two water bodies do not readily mix,causing a clearly def-ined
clearwater extension of the tributary along the river bank at end
below the actual confluence.Size of the plume is a function of
tributary flow and mainstem discharge.
Datapod - A dual channel,electronic instrument capable of simul-
taneously measuring and recording from each channel on a continuous
basis.Datapods have been used to monitor stage,temperature and
dissolved gas concentrations.
Discharge -Discharge,or streamflow,is defined as the volume rate of
flow of water passing a specific location for a specific point in
time.Dimensions are usually expressed as cubic feet per second
(cfs).For the purpose of this report discharge will refer specif-
ically to mainstem habitat and streamflow for side channel,slough
and tributary habitats.
DSM - A non-volatile,ultraviolet (UV)erasable,solid state data
storage module capable of storing approximately 3 months of stage,
temperature or dissolved gas concentration data.
Gaging Station - A location which has been established for monitoring
stage,flow and/or discharge.
Habitat -The surrounding environmental conditions to which a particular
species and 1ife stage of fish responds both behaviorally and
physiologically.
Head -The upstream or point of origin of a lotic water body.
Lower Reach (of the Susitna River)-The segment of the Susitna River
between Cook In 1et and the Chu 1itna Ri ver confl uence.(See also
middle reach and upper reach).
Mainstem Habitat -Consists of those portions of the Susitna River that
normally convey water throughout the year.Both single and multi-
ple channel reaches are included in this habitat category.Ground-
water and tributary inflow appear to be inconsequential contribu-
tors to the overall characteristics of mainstem habitat.Mainstem
habitat is typically characterized by high water velocities and
well armored streambeds.Substrates generally consi st of boul der
76
and cobble size materials with interstitial spaces filled with a
grout-like mixture of small gravels and glacial sands.Suspended
sediment concentrations and turbidity are high during summer due to
the influence of glacial melt-water.Discharges recede in early
fall and the mainstem clears appreciably in October.An ice cover
forms on the river in late November or December.
Mean Daily Discharge -The computed mean mainstem discharge per 24 hour
period for a USGS gaging station.
Middle Reach (of the Susitna River)-The segment of the Susitna River
between the Chulitna River confluence and Devil Canyon.(See also
lower reach and upper reach).
Monitoring Station - A station set up for the collection of a particular
data base.
Mouth -The downstream confl uence of a loti c water body with another
water body.
Overtopping -See breaching.
Peripheral Habitats -Aquatic habitats adjacent to the mainstem Susitna
River habitat (e.g.side channel,side slough,upland slough,
tributary mouth and/or tributary habitats).
Side Channel Habitat -Consists of those portions of the Susitna River
that normally convey water during the open water season but become
appreciably dewatered during periods of low mainstem discharge.
Side channel habitat 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 typical-
ly lower than the mean monthly water surface elevations of the
mainstem Susitna River observed during June,July,and August.
Side channel habitats are characterized by shallower depths,lower
velocities and smaller streambed materials than the adjacent
habitat of the mainstem river.
Side Slough Habitat -is located in overflow channels 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 well vegetated bars.An exposed alluvial berm often
separates the head of the slough from mainstem discharge or side
channel flows.The controlling 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
77
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type.The water surface elevation of the Susitna River generally
causes a backwater to extend well up into the slough from its lower
end.Even though this substantial backwater exists,the sloughs
function hydraulically very much like small stream systems and
severa 1 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 si de sloughs duri ng summer months are princi pa lly a functi on of
air temperature,solar radiation,and the temperature of the local
runoff.
Stage -The height of the water surface above an established 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 habitats whereas discharge denotes streamflow
in mainstem habitats.See Discharge.
Tributary Habitat -Consists of the full complement of hydraulic and
morphologic conditions that occur in the tributaries.Their
seasonal flow,sediment,and thermal regimes reflect the inte-
gration of the hydrology,geology,and climate of the tributary
drainage.The physical attributes of tributary habitat are not
dependent on mainstem conditions.
Tributary Mouth Habitat -Extends from the uppermost point in the
tributary influenced by mainstem Susitna River or slough backwater
effects to the downstream extent of the tributary plume which
extends into the mainstem Susitna River or slough..
Upland Slough Habitat -Differs from side slough habitat in that the
upstream end of the slough does not interconnect with the surface
waters of the mainstem Susitna River or its side channels even at
high mainstem discharges.These sloughs are characterized by the
presence of beaver dams and an accumul ati on of si It covering the
substrate resul ting from the absence of mainstem scouring dis-
charges.
Upper Reach (of the Susitna River)-The segment of the Susitna River
between Devil Canyon and the headwaters (See also lower reach and
middle reach).
USGS Water Year -The USGS water year runs from October to September and
the years designation is determined by the end of the period.The
1983 water year occurs from October 1 of 1982 to September 30 of
1983.
78
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6.0 CONTRIBUTORS
PROJECT LEADER
Aquatic Habitat and Instream Flow
Project Leader
PRIMARY AUTHORS
REPORT COORDINATORS
EDITORS
DATA PROCESSING
DATA COLLECTION
DRAFTING
TYPING
79
Christopher Estes
Tim Quane
Isaac Queral
Theresa Keklak
Don Seagren
Douglas Vincent-Lang
Tim Quane
Camille Stephens
Theresa Keklak
Douglas Vincent-Lang
Camille Stephens
Theresa Keklak
Allen Bingham
Aquatic Habitat
Staff
Sa 11 y Donovan
Carol Hepler
Skeers Word
Processing
F
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7.0 ACKNOWLEDGEMENTS
Funding for this study was provided by the State of Alaska,Alaska Power
Authority.Input into study design was provided by E.W.Trihey &
Associates.
80
,"i'"
8.0 LITERATURE CITED
Alaska Department of Fish and Game (ADF&G).1982.Susitna Hydro
Aquatic Studies t Phase II,Basic Data Report;Vol.4:Aquatic
Habitat and Instream Flow Studi es,Parts I and 11.Anchorage,
Alaska.Prepared for Acres American t Anchorage,Alaska.
1983.Aquatic Studies Procedures Manual.Phase II.Prepared for
------Acres American,Inc.,Anchorage t Alaska.
Quane,T.,P.Morrow,and T.Withrow.1984.Chapter 1:Stage and
discharge investigations.In Report No.3:Aquatic Habitat and
Instream Flow Investigations (t~ay -October 1983).C.Estes and D.
Vincent-Lang,eds.Alaska Department of Fish and Game,Susitna
Hydro Aquatic Studies.Anchorage,Alaska.
Hydro-
Inc.,
Sus itna Hydroe 1ect ri c Proj ect:
Prepared for Acres American,
R&M Consultants,Inc.1982.
graphic Surveys Report.
Anchorage,Alaska.
Sautner,J.,L.Vining,and L.Rundquist.1984.Chapter 6:An
evaluation of passage conditions for adult salmon in sloughs and
side channels of the middle Susitna River.In Report No.3:
Aquati c Habitat and Instream Flow Investi gati ons (May -October
1983).C.Estes and D.Vincent-Lang,eds.Alaska Department of
Fish and Game,Susitna Hydro Aquatic Studie~.Anchorage,Alaska.
....
Schmidt,D.,S.Hale,D.Crawford,and P.Suchanek.1984.Report No.
2:Resi dent and juvenile anadromous fi sh i nvesti gati ons (May -
October 1983).Alaska Department of Fish and Game,Susitna Hydro
Aquatic Studies.Anchorage,Alaska.
Vincent-Lang,D.,A.Hoffmann,A.Bingham,C.Estes.D.Hilliard,C.
Steward,E.Tri hey ,and S.Crumley.1984.Chapter 7:An
evaluation of chum and sockeye salmon spawning habitat in sloughs
and side channels of the middle Susitna River.In Report No.3:
Aquatic Habitat and Instream Flow Investi gati ons (May -October
1983).C.Estes and D.Vincent-Lang,eds.Alaska Department of
Fish and Game,Susitna Hydro Aquatic Studies.Anchorage,Alaska.
U.S.Geological Survey (USGS).1982.Water Resources Data for Alaska:
Water Year 1982.USGS Water -Data Report AK-82-1.Anchorage.
Alaska .
81
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9.0 APPENDICES
"'-._---'
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9.0 APPENDICES
82
TERMS USED IN THALWEG AND CROSS SECTIONAL DATA TABLES
Bench Mark -That point in the immediate vicinity of the study site
(i.e.,head pin,nail in tree ba?e or ground)which is
assigned an elevation (usually 100 feet)from which
relative elevations of headpins,the water surface and
stream bed were determined.All bench marks are surveyed
into project datum to obtain true elevation.
Comments -Unique or important characteristics of the channel at a
particular station (i.e.,riffle,pool,staff gage
location,modeling transect location,etc.)
Depth -
r
Dewatered -
Distance -
LWE -
LWS -
Point -
RWE -
RWS -.-
Station -
Substrate -
The distance from the water surface of the surface to the
substrate at the point where the thalweg elevation was
surveyed.
No water present at time of thalweg survey.At higher
flows,water may be present.
The linear measurement between two points or stations.
Left bank water edge
Left bank water surface
Refers to a station where an elevation was determined and
is numbered from the mouth upstream.
Right bank water edge
Right bank water surface
The upstream (positive)or downstream (negative)distance
referenced from the month of a slough.The mouth is
assigned the station 0+00 (note that this definition
differs from that used in cross-section tables).
The predominant particle size in the immediate area where
the thalweg elevation was surveyed based on the following
criteria (Modified Wentworth Scale).
SI -Silt (very fine particles)
SA -Sand (fine particles)
SG -Small gravel (0.25"to 1"diameters)
LG -Large gravel (1"to 3"diameters)
RU -Rubble (3"to 5"diameters)
CO -Cobble (5"to 10"diameters)
BO -Boulder (10"diameters and greater)
Thalweg Elevation -The elevation of the lowest point in a cross
section at a particular station.
TBM -
Thalweg -
TR -
WSEL -
Temporary bench mark (see definition for bench mark).
The line following the deepest part or middle of the bed
or channel of a river or stream (Arnette,J.J.1975).
The baisc definition has been expanded to include sloughs
and side channels.
ADF&G modeling study transect
Water surface elevation.
,lIIili'fM!,
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~:
~-
.-
Appendix 2-A
LIST OF APPENDIX A TABLES
Table Page
2-A-l Data used to develop the streambed (thalweg)
profile of Mainstem 2,Side Channel -Northwest
(Left)Channel (RM 114.4),1983 •..•..•••..•....•..•.2-A-l
2-A-2 Data used to develop the streambed (thalweg)
profile of Mainstem 2 Side Channel -Northeast
(right)Channel (RM 114.4),1983 ..••......•••.••.•.•2-A-3
2-A-3 Data used to develop the streambed (thalweg)
profile of Side Channel 10 (RM 133.8),1983 ..•..•.•.2-A-8
,~2-A-4 Data used to develop the streambed (thalweg)
profile of Upper Side Channel 11 (RM 136.2),
1983 ..........................................................................2-A-12
2-A-5 Data used to develop the streambed (thalweg)
profile of Side Channel 21 (RM 140.6),1982 .........2-A-14
1""'.2-A-6 Data used to develop the streambed (thalweg)
profile of Whiskers Creek Side Slough (RM
101.2 ),1983 ...............................................................................2-A-19
2-A-7 Data used to develop the streambed (thalweg)
profile of Side Slough 8A (RM 125.3),1982 ..•....•.•2-A-21
f"""2-A-8 Data used to develop the streambed (thalweg)
profile of Side Slough 9 (RM 128.3),1982 ..•...•....2-A-26
2:"'A-9 Data used to develop the streambed (thalweg)
profile of Side Slough 9A (RM 128.3),1983 ..........2-A-29
2-A-I0 Data used to develop the streambed (thalweg)
profile of Side Slough 11 (RM 135.3),1982 ......•...2-A-32
2-A-11 Data used to develop the streambed (thalweg)-profile of Side Slough 16/168 (RM 137.7),1983 ......2-A-35
2-A-12 Data used to develop the streambed (thalweg)
profile of Side Slough 20 (RM 140.1),1983 ..........2-A-39
2-A-13 Data used to develop the streambed (thalweg)
profile of Side Slough 21 (RM 141.8),1982 ...•.•....2-A-43
r-
2-A-14 Data used to develop the streambed (thalweg)
profile of Side Slough 22 (RM 144.3),1983 ....•.....2-A-45
2-A-15 Data used to develop the streambed (thalweg)
profile of Upland Slough 6A (RM 112.3),1983.•......2-A-48
I"""
LIST OF APPENDIX A TABLES (Continued)
Table
-
-
2-A-16
2-A-17
2-A-18
Data used to-develop the streambed (thalweg)
profile of Upland Slough 10 -Northwest (left)
Channel (RM 133.8),1983 •..•..••.••.•...•.••.....•..
Data used to develop the streambed (thalweg)
profile of Upland Slough 10 -Northeast (right)
Channel (RM 133.8),1983 •••.•..••.•...•.••.•...•••.•
Data used to develop the streambed (thalweg)
profile of Upland Slough 19 (RM 140.0),1983 •••...••
2-A-50
2-A-53
2-A-57
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Appendix Table 2-A-1.Data used to develop the streambed (thalweg)profile of Mainstem 2 -Northwest
(left)Channel (RM 114.4)t 1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)1ill (ft)Substrate Comments
1 -1 +21 471.86 2.99 474.85 CORU Mainstem
121
2 o +00 472.61 2.17 474.78 SICO Mouth of Mainstem II,Backwater
100
3 1 +06 473.74 0.90 474.64 SI High point in backwater pool
185
4 2 +91 472.47 2.03 474.50 SICO Backwater
308
5 5 +99 472.47 2.07 474.54 SICO Backwater pool
N 197I
~6 7 +96 472.08 2.44 474.52 SICO Backwater poolI
I-'"30
7 8 +26 473.60 0.82 474.42 SI Riffle/backwater
276
8 11 +02 474.45 0.36 474.81 RUCO Pool/riffle
58
9 11 +60 473.66 1.17 474.83 LGCO Pool at Gage 114.4 S7 t mid pool
79
10 12 +39 474.53 0.32 474.85 LGCO Riffle/pool
147
11 13 +86 475.82 0.39 476.21 RUCO Pool/riffle
150
12 15 +36 473.48 2.74 476.22 RULG Pool
77
13 16 +13 474.21 2.01 476.22 RUCO Pool,right channel joins at
34 this point
14 16 +47 475.74 0.47 476.26 RUCO Riffle/pool
272
15 19 +19 476.30 0.39 476.69 RULG Pool/riffle
99
Appendix Table 2-A-l.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)1lli iftl Substrate COl1V11ents
16 20 +18 475.88 0.80 476.68 RULG Pool
88
17 21 +06 476.32 0.28 476.60 RULG Riffle/pool
214
18 23 +20 477.11 0.37 477 .48 LGRU Ri ffle
184
19 25 +04 478.34 0.36 478.70 LGRU Pool/riffle
327
20 28 +91 477.29 1.44 478.73 RULG Pool
417
N 21 33 +08 478.32 0.27 478.59 LGRU Riffle/poolI»232I
N 22 35 +40 478.60 0.35 478.95 CORU Pool/riffle
359
23 38 +99 477.66 1.14 478.80 RUCO Pool
354
24 41 +53 477.11 1.71 478.82 RUCO Pool
50
25 42 +03 478.61 0.22 478.83 CORU Ri ffl e/poo 1
38
26 42 +41 479.09 0.30 479.39 CORU
61
27 43 +02 481.09 0.00 481.09 CORU High point
50
28 43 +52 480.90 0.00 480.90 CORU At gage 114.4 H3B
54
29 44 +06 480.30 0.38 480.68 RUCO Edge of solid ice
35
30 44 +41 478.85 1.85 480.70 RUCO Mainstem,head of left fork
I I J .J I J J J I .1 J I _1 .I I J ;)
-1 )1 '}1 J --»1 J 1 "-I 1 I }
Appendix Table 2-A-2.Data used to develop the streambed (thalweg)profile of Mainstem 2 -Northeast
(right)Channel (RM 114.4),1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft ).llil Substrate Comments
1 16 +13 474.21 2.01 476.22 RUCO Mouth of right channel
60
2 16 +73 475.63 0.57 476.20 LGCO
12
3 16 +85 475.94 0.27 476.18 LGCO
28
4 17 +13 475.13 0.97 476.10 LGCO
35
5 17 +48 474.09 2.00 476.09 LGCO
78
N 6 18 +26 473.29 2.85 476.14 LGCO
I 43:t:-
I 7 18 +69 473.85 2.30 476.15 LGCOw
18
8 18 +87 473.41 2.75 476.16 COLG
18
9 19 +05 475.77 0.40 476.17 COLG
16
10 19 +21 476.63 0.15 476.78 COLG
32
11 19 +53 477.20 0.15 477.35 COLG
111
12 20 +64 477 .65 0.10 477 .75 COLG
54
13 21 +18 477.17 0.60 477.77 COLG
39
14 21 +57 477 .46 0.30 477 .76 COLG
60
15 22 +17 476.82 0.95 477.77 COLG
67
Appendix Table 2-A-2.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)lftl Elevation (ft)(ft)(ft)Substrate Comments
16 22 +84 477.32 0.40 477 .22 COLG
106
17 23 +90 477 .35 0.40 477 .75 COLG
117
18 25 +07 477 .38 0.45 477 .83 COLG
36
19 25 +43 477 .24 0.52 477 •76 COLG
87
20 26 +30 475.87 1.90 477.77 COLG
95
21 27 +25 476.32 1.40 477.72 LG
N 12I
)::0 22 27 +37 476.77 1.00 477.77 LGI
.po 9
23 27 +46 477 .35 0.42 477 .70 LG
34
24 27 +80 477.72 0.05 477.77 LG
68
25 28 +48 476.69 0.95 477 .64 COLG
162
26 30 +10 475.44 2.20 477 .64 SASG
86
27 30 +96 474.48 3.20 477 .68 SACO
112
28 32 +08 475.05 2.65 477 •70 LGSG
177
29 33 +85 478.77 0.00 478.77 COLG
77
30 34 +62 478.30 0.10 478.40 COLG
170
g !I I I J J I D I §I o~~J .~~J
1 1 -]J J J -J 1 J --1 --9 ]
Appendix Table 2-A-2.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft) (ft)'l.f!l Substrate Comments
31 36 +32 477 .62 0.80 478.42 COLG
71
32 37 +03 477 .92 0.50 478.42 COLG
15
33 37 +18 478.38 0.20 478.58 COLG
13
34 37 +31 478.29 0.29 478.58 COLG
52
35 37 +83 478.65 0.10 478.75 COLG
63
36 38 +46 479.55 0.10 479.65 COLG
N 74
I 37 39 +20 479.67 0.10 479.77 COLG::t:>
I 13In
38 39 +33 479.62 0.15 479.77 BOCa
83
39 40 +16 479.28 0.50 479.78 BOCO
132
40 41 +48 478.47 1.32 479.79 BOCa
59
41 42 +07 478.81 1.00 479.81 BOCa.47
42 42 +54 478.40 1.40 479.80 BOca
42
43 42 +96 478.84 0.95 479.79 BOCO
140
44 44 +36 479.33 0.40 479.73 BOCa
98
45 45 +34 479.71 0.00 479.71 BOCO
135
46 46 +69 480.25 0.00 480.25 BOca
63
Appendix Table 2-A-2.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)iliL (ft)Substrate Corrunents
47 47 +32 480.51 0.00 480.51 BOCO
16
48 47 +48 480.68 0.00 480.68 BOca
11
49 47 +59 480.14 0.40 480.54 BOCO
58
50 48 +17 480.05 0.41 480.46 BOCO
26
51 48 +43 479.83 0.64 480.47 BOCO
24
52 48 +67 481.54 0.00 481.54 BOCO
N 53I
):0-53 49 +20 481.00 0.00 481.00 BOCOI
Q)114
54 50 +34 481.12 0.00 481.12 BOCO
305
55 53 +39 482.71 0.00 482.71 BOCO
161
56 55 +00 482.59 0.00 482.59 BOCO
141
57 56 +41 482.77 0.00 482.77 BOCO
57
58 56 +98 482.65 0.00 482.65 BOCO
41
59 57 +39 482.55 0.10 482.65 BOCO
27
60 57 +66 482.42 0.25 482.67 BOCO
41
61 58 +07 482.55 0.12 482.67 BOCO
19
I j j J J "I J I I ,I 1 I ~I J J I ,
-J "I 1 )1 ]1 -l
I'\>
I
):;-
I
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Appendix Table 2-A-2.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft) (ft)Substrate Comments
62 58 +26 481.80 0.89 482.69 BOCO
14
63 58 +40 482.61 0.00 482.61 BOCO
6
64 58 +46 483.84 0.00 483.84 BOCO
142
65 59 +88 484.55 0.00 484.55 BOca
Appendix Table 2-A-3.Data used to develop the streambed thalweg profile of Side Channel 10 (RM 133.8),
1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Corrunents
1 -3 +29 644.26 5.40 649.66 SIBO Mainstem
134
2 -1 +95 645.63 4.16 649.79 SIBO Mainstem
195
3 o +00 645.29 4.57 649.86 SIBO Mouth at Gage 133.8 W5A,
84 Pool -backwater
4 o +84 645.10 4.67 649.77 SIBO Pool -backwater
96
5 1 +80 647.20 2.66 649.86 SIBO Pool -backwater
N 53
I 6 2 +33 647.63 2.15 649.78 SIBO Pool -backwater)::0
I 23co
7 2 +56 647.34 2.49 649.83 SIBO Pool
-backwater
26
8 2 +82 647.55 2.28 649.83 SIBO Pool -backwater
22
9 3 +04 647.06 2.76 649.82 SIBO Pool -backwater
9
10 3 +13 647.40 2.44 649.84 SISA Pool -backwater
11
11 3 +24 647.98 1.82 649.80 SISA Pool -backwater
14
12 3 +38 649.07 0.77 649.84 CO Riffle
41
I J J •J J J •a .1 I .~~I J ,J
]1 1 )J )1 J }...j »
Appendix Table 2-A-3.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft) (ft)(ft)Substrate Corrunents
13 3 +79 647.67 2.18 649.85 CO
183
14 5 +62 650.67 0.51 651.18 SILT Pool
185
15 7 +47 650.69 0.51 651.20
64
16 8 +11 650.57 0.63 6,51.20 Backwater pool
115
17 9 +26 649.85 1.36 651.21
85
18 10 +11 650.32 0.90 651.22 CO
N 197
I 19 12 +08 650.42 0.83 651.25 Bottom riffle:x::-
I 81\D
20 12 +89 651.04 0.28 651.32 Bottom next riffle
18
21 13 +07 651.33 0.31 651.64 Top of riffle
52
22 13 +59 652.02 0.22 652.24 Top of riffle
154
23 15 +13 652.05 0.36 ,652.41 Bottom of riffle
52
24 15 +65 652.46 0.36 652.82 Top riffle
73
25 16 +38 651.19 1.66 652.85
35
26 16 +73 650.72 2.12 652.84 Bottom pool
35
27 17 +08 652.36 0.49 652.85 Bottom of riffle
28
Appendix Table 2-A-3.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)if!l Substrate Comments
28 17 +36 652.67 0.45 653.12 Top of riffle
32
29 17 +68 648.94 4.22 653.16 Bottom of pool
38
30 18 +06 652.26 0.93 653.19 Bottom of riffle
10
31 18 +16 653.11 0.30 653.41 Top riffle
74
32 18 +90 651.81 1.68 653.49 Pool
46
33 19 +36 651.85 1.63 653.48 Pool
N 21
I 34 19 +57 652.85 0.65 653.50 Pool):;>
I 40I-'
0 35 19 +97 651.13 2.39 653.52 Pool
62
36 20 +59 653.16 0.35 653.51 Bottom of riffle
27
37 20 +86 654.24 0.25 654.49 Top of riffle/TR4
131
38 22 +17 654.06 0.54 654.60 Pool
52
39 22 +69 653.35 1.24 654.59 Pool
52
40 23 +21 652.91 1.65 654.56 FHU TR5
32
41 23 +53 652.77 1.79 654.56 Pool
94
42 24 +47 654.11 0.43 654.54 Bottom of log jam
5
I J t I I ,J .I 11 .~J I )..~I i .J J ~.;'fI
1 1 -C]1 -cl )!-1 1
Appendix Table 2-A-3.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft) (ft)ilil Substrate Conunents
43 24 +52 654.53 0.58 655.11 Top of log jam/bottom of riffle
20
44 24 +72 655.28 0.40 655.68 Top of riffle
13
45 24 +85 655.30 0.40 655.70 Pool lower
58
46 25 +43 654.86 0.85 655.71 Pool mid
56
47 25 +99 655.24·0.47 655.71 Pool/riffle
40
48 26 +39 655.80 0.46 656.26 Riffl e/pool
N 24
I 49 26 +63 655.94 0.35 676.29 Pool bottom:l:>
I 24............50 26 +87 656.62 0.09 656.71 Head-barely breached
Appendix Table 2-A-4.Data used to develop the streambed (thalweg)profile of Upper Side Channel 11 (RM
136.2),1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
1 1 +75 675.68 2.35 678.03 SISA Backwater
0
2 1 +01 674.81 3.25 678.06 SISA Backwater
74
3 o +21 674.73 3.35 678.08 SISA Backwater
80
4 o +00 674.32 3.70 678.02 CO Backwater
21
5 o +62 674.64 3.40 678.04 CO Bottom of riffle
62
N 6 o +81 674.40 3.60 678.00 CO Bottom of riffle
I 19)::-
I 7 1 +31 674.79 3.23 678.02 SICO End backwater.......
N 50
8 1 +54 675.60 2.40 678.00 SICO End backwater
23
9 2 +31 676.60 1.50 678.10 SICO
77
10 3 +75 676.05 2.00 678.05 SICO
144
11 4 +32 676.06 2.00 678.06 SICO Bottom of riffle
57
12 4 +85 677.05 1.00 678.05 SICO Mid riffle
53
13 6 +37 678.71 0.85 679.56 SICO Top riffle
152
14 7 +19 678.76 1.00 679.76 SOCO Small riffle area
82
15 8 +55 679.66 0.90 680.56 COBO Riffle
136
J I ,)J J )]•.1 I 1 I I I I J I J
--I
Appendix Table 2-A-4.(Continued)
]--1 1 )j I )l
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft) (ft)(ft)Substrate Comments
16 10 +12 680.50 0.65 681.15 COBO Top of riffle
157
17 11 +43 680.08 1.30 681.38 COBO Top of riffle
131
18 12 +08 679.42 1.95 681.37 COBO Top of pool
65
19 13 +73 680.56 1.35 681.91 COBO Mid riffle
165
20 14 +30 681.73 1.18 682.92 COBO Riffle
57
21 15 +41 681.91 1.38 683.29 COBO RiffleN111I
)::>22 16 +84 682.55 1.32 683.87 COBO RiffleI
I-'143w
23 17 +77 682.71 1.35 684.06 COBO Riffle
93
24 19 +24 682.22 1.50 683.72 COBO Riffle
147
25 19 +95 683.91 1.25 685.16 COBO Riffle
71
26 20 +80 684.45 1.11 685.56 COBO Top of riffle
85
27 21 +69 684.04 1.66 685.70 LGBO Mid pool at head
89
28 22 +32 684.31 1.42 685.73 SISA
63
Appendix Table 2-A-5.Data used to develop the streambed (thalweg)profile of Side Channel 21 (RM 140.6),
1982.
Distance Station Thalweg Depth WSEL
Point (ft)iftl Elevation (ft)illl li!l Substrate Comments
1 -51 +68 731.05 0.40 731.45 Mouth
46
2 -51 +22 730.95 0.45 731.40 Bar at mouth
41
3 -50 +81 730.15 1.35 731.50 Bottom of riffle
24
4 -50 +57 730.55 1.05 731.60 Riffle
26
5 -50 +31 731.15 0.75 731.90 Top of riffle
74
N 6 -49 +57 731.65 0.30 731.95 PoolI
):>200I......7 -47 +57 730.25 1.70 731.95 Pool~
90
8 -46 +67 730.70 1.25 731.95 Top of pool
2
9 -46 +65 731.25 0.70 731.95 Top of pool
108
10 -45 +57 731.50 0.45 731.95 Top of pool
61
11 -44 +96 731.50 0.60 732.10 Bottom of run
58
12 -44 +38 731.65 0.60 732.25 Top of run
17
13 -44 +21 732.40 0.20 732.60 Riffle
11
14 -44 +10 732.10 0.55 732.65 Top of riffle
28
15 -43 +82 731.30 1.35 732.65 Pool
53
16 -43 +29 731.85 0.80 732.65 Top of pool
88
17 -42 +41 732.05 0.65 732.70 Run
126
J .~I J !,.1 J )••I !;t J i J I "
1
Appendix Table 2-A-5.(Continued)
]1 J -)I ]I
Distance Station Thalweg Depth WSEL
Point illl .litl Elevation (ft)(ft)(ft)Substrate Comments
18 -41 +15 732.55 0.50 733.05 Run
130
19 -39 +85 731.05 2.05 733.10 Pool
146
20 -38 +39 731.45 1.65 733.10 Top of pool
20
21 -38 +19 731.55 1.55 733.10 Top of pool
31
22 -37 +88 732.75 0.35 733.10 Top of pool
87
N 23 -37 +01 733.65 0.50 734.15 Riffle
I 82)::>
24 -36 +19 734.55 0.25 734.80 Top of riffleI......
0"1 45
25 -35 +74 734.85 0.60 735.45 Top of riffle
66
26 -35 +08 734.90 0.70 735.60 Pool
80
27 -34 +28 735.20 0.40 735.60 Pool
38
28 -33 +90 735.35 0.35 735.70 Top of pool
37
29 -33 +53 735.90 0.40 736.30 Top of riffle
62
30 -32 +91 735.40 0.95 736.35 Pool
91
31 -32 +00 736.00 0.35 736.35 Pool
87
32 -31 +13 736.10 0.70 736.80 Run
39
33 -30 +74 736.10 0.80 736.90 Pool
67
34 -30 +07 736.00 0.90 736.90 Pool
57
Appendix Table 2-A-5.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate COllJl1ents
35 -29 +50 736.55 0.50 737.05 Top of pool
9
36 -29 +41 736.85 0.45 737.30 Top of riffle
53
37 -28 +88 737.05 0.40 737.45 Bottom of riffle
47
38 -28 +41 737.10 0.65 737.75 Riffle
85
39 -27 +56 737.50 0.35 737.85 Riffle
48
40 -27 +08 737.50 0.55 738.05 Riffle
N 42
I 41 -26 +66 737.80 0.45 738.25):.
I 33........
O"l 42 -26 +33 737.35 0.95 738.30 Boulder run
19
43 -26 +14 737.85 0.45 738.30 Boulder run
22
44 -25 +92 737.35 0.10 738.45 Boulder run
75
45 -25 +17 737.90 0.60 738.50 Top run
63
46 -24 +54 738.10 0.45 738.55 Pool
31
47 -24 +23 737.55 1.00 738.55 Pool
101
48 -23 +22 738.05 0.55 738.60 Top of pool
63
49 -22 +59 738.55 0.25 738.80 Bottom of riffle
100
50 -21 +59 738.60 0.45 739.05 Riffle
113
51 -20 +46 739.30 0.25 739.55 Riffle
87
,J t J I J I 1 J J )J !J 01 I I J
1 I '1 ])J 1 1 )J 1 ')~
Appendix Table 2-A-5.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)1ftl Substrate Conunents
52 -19 +59 739.45 0.55 740.00 Riffle
95
53 -18 +64 740.20 0.30 740.50 Riffle
108
54 -17 +56 740.85 0.50 741.35 Riffle
88
55 -16 +68 741.60 0.50 742.10 Riffle
96
56 -15 +72 742.10 0.55 742.75 Riffle
82
57 -14 +90 742.25 0.50 742.75 Riffle
N 70I
):>0 58 -14 +20 742.00 0.85 742.85 RunI......90'J
59 -13 +30 742.55 0.30 742.85 Run
128
60 -12 +02 742.15 0.75 742.90 Top of run
80
61 -11 +22 742.20 0.80 743.00 Pool
103
62 -10 +19 742.65 0.35 743.00 Pool
163
63 -8 +56 742.70 0.30 743.00 Top,of pool
54
64 -8 +02 742.55 0.70 743.25 Run
73
65 -7 +29 742.75 0.80 743.55 Run
63
66 -6 +66 743.65 0.40 744.05 Run
32
67 -6 +34 743.40 0.75 744.15 Run
152
68 -4 +82 743.05 1.20 744.25 1982/TR-3'
97
Appendi~Table 2-A-5.(Continued)
Distance Station Thalweg Depth WSEL
Point if!l (ft)Elevation (ft)litl illl Substrate Comments
69 -3 +85 742.00 2.25 744.25 1982/TR-4
141
70 -2 +44 743.65 0.68 744.35 1982/TR-5.from cross section
60 survey data
71 -1 +84 744.10 0.51 744.60 1982/TR-6.from cross section
89 survey data
72 -0 +95 743.25 1.58 744.80 1982/TR-7.from cross section
95 survey data
Channel A-6
N
I 1 -8 +56 742.70 0.30 743.00)::-
I 26.......
0:>2 -8 +30 741.80 1.20 743.00
73
3 -7 +57 742.80 0.20 743.00
53
4 -7 +04 743.80 0.20 744.00
61
5 -6 +43 743.85 0.55 744.40
112
6 -5 +31 743.50 0.90 744.40
133
7 -3 +98 744.50 0.00 744.50 Dewatered
179
8 -2 +19 747.21 0.00 747.21 Dewatered
70
9 -1 +49 747.44 0.00 747.44 Dewatered
I I J J I ,J .1 c!}~)j J J J ,,J I
1 1 I 1 1 j 1 1 I 1
Appendix Table 2-A-6.Data used to develop the streambed (thalweg)profile of Whiskers Creek Side Slough
(RM 101.2),1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft) (ft)Substrate Comments
1 o +00 361.87 1.06 362.93 LGRU Mainstem/slough confluence
236
2 2 +·36 362.15 0.99 363.14 LGRU Deep spot in run (near mouth
209 at gage)
3 4 +45 361.96 1.45 363.41 LGRU Deep spot in run
77
4 5 +22 363.06 0.52 363.58 LGRU Mid-run
95
5 6 +17 364.29 0.19 364.48 LGRU Mi d-run
N 131
I 6 7 +48 364.63 0.40 365.03 LGRU Riffle/pool
)::-73I
I-'7 8 +21 363.35 1.73 365.08 LGRU Pool\.0
52
8 8 +73 364.36 0.74 365.10 LGRU Pool/riffle
35
9 9 +08 365.10 0.31 365.41 LGRU Riffle/pool
292
10 12 +00 363.20 2.25 .365.45 LGRU Below ice at creek mouth
152 Pool lower 1/3
11 13 +52 363.97 1.45 365.42 RUCO Above ic~,pool upper 1/3
111
12 14 +63 365.02 0.42 365.44 RUCO Pool/riffle
20
13 14 +83 365.56 0.25 365.81 RUCO Riffle/pool
296
14 17 +79 362.73 3.00 365.73 RUCO Pool frozen over -depth esti-
366 mated -top of ice surveyed
15 21 +45 365.47 0.32 365.79 RUCO Poo 1/riffl e
106
Appendix Table 2-A-6.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
16 22 +51 366.38 0.20 366.58 RUCO Riffle/pool
213
17 24 +64 363.46 3.00 366.46 RUCO Pool -frozen over -estimated
118 depth -top of ice surveyed
18 25 +82 366.33 0.20 366.53 RUCO Forks converge -begin of pool
295
19 28 +77 366.80 0.30 367.10 RUCO Top of ice -depth estimated
63 R&M,cross section
20 29 +40 366.97 0.00 366.97 RUCO Low point at head dry
N
I
)::-
I
N
0
J J .,5 J J §J •J J I I I ]J I I'''1
J -)-]J J J 1 -1 )I )1 j
Appendix Table 2-A-7.Data used to develop the streambed (thalweg)profile of Slough 8A (RM 125.3),1982.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
1 -3 +74 558.60 1.05 559.65 Riffle
74
2 -3 +00 559.40 0.35 559.75 Top of riffle
75
3 -2 +25 558.95 0.85 559.80 Backwater
75
4 -1 +50 558.40 1.40 559.80 Backwater
50
5 -1 +00 557.85 2.05 559.90 Backwater
63
N 6 -0 +37 559.40 0.50 559.90 Backwater
I 37)::>
I 7 o +00 558.50 1.45 559.95 MouthN
I-'133
8 1 +33 556.95 3.00 559.95 Pool
6
9 1 +39 559.30 0.70 560.00 Head of pool
50
10 1 +89 559.95 0.20 560.15 Top of pool
113
11 3 +02 560.60 0.35 560.95 Top of riffle
107
12 4 +09 559.70 1.25 560.95 Pool
74
13 4 +83 560.40 0.55 560.95 Pool
114
14 5 +97 560.05 0.90 560.95 Pool
151
15 7 +48 560.05 0.90 560.95 Pool
112
16 8 +60 560.15 0.80 560.95 Pool
53
17 9 +13 559.70 1.25 560.95 Pool
144
Appendix Table 2-A-7.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft) (ft)Substrate Comments
18 10 +57 560.55 0.40 560.95 Pool
22
19 10 +79 560.75 0.20 560.95 Top of pool
18
20 10 +97 561.15 0.20 561.35 Top of riffle
37
21 11 +34 560.85 0.55 561.40 Run
43
22 11+77 561.05 0.45 561.50 Run
43
N 23 12 +20 561.00 0.55 561.55 Run
I 40~
N 24 12 +60 561.50 0.20 561.70 Bottom of riffle
N 20
25 12 +80 562.05 0.60 562.65 Bottom of pool
72
26 13 +52 562.05 0.65 562.70 Pool
24
27 13 +76 562.40 0.30 562.70 Pool
7
28 13 +83 562.40 0.40 562.80 Run
41
29 14 +24 562.15 0.70 562.85 Run
15
30 14 +39 562.60 0.40 563.00
36
31 14 +75 562.80 0.35 563.15
47
32 15 +22 563.00 0.40 563.40
123
33 16 +45 563.50 0.20 563.70
244
34 18 +89 563.60 0.30 563.90
10
J J •1 J .I J I I ,I i J J )J J J J
C
C
.I C
-1 1 ._)1 J J i ]1 )j ]
Appendix Table 2-A-7.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
35 18 +99 563.50 2.00 565.50 Top of dam
156
36 20 +55 563.00 2.50 565.50
150
37 22 +05 559.50 4.00 565.50 Right bank
269
38 24 +74 563.50 2.00 565.50 Pool
132
39 26 +06 562.50 3.00 565.50 Pool
208
40 28 +14 564.00 2.00 565.75 Water's edge
N 111
I 41 29 +25 563.75 2.00 565.75):>
J 90Nw42 30 +15 564.55 1.23 565.78
132
43 31 +47 564.05 2.31 566.36
89
44 32 +36 561.25 5.13 566.35
66
45 33 +02 565.60 0.76 566.35
41
46 33 +43 565.70 0.79 566.45
103
47 34 +46 565.85 0.95 566.80
176
48 36 +22 566.15 1.29 567.45
113
49 37 +35 566.30 1.16 567.45
88
50 38 +23 565.45 1.98 567.45
50
51 38 +73 566.60 0.43 567.05 Bottom of riffle
131
Appendix Table 2-A-7.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft).li.tl (ft)Substrate Comments
52 40 +04 568.40 0.16 568.60 Top of ri ffl e
185
53 41 +89 567.80 0.82 568.60 Top of pool
44
54 42 +33 568.35 0.56 568.90 Top of riffle
140
55 43 +73 568.25 0.84 569.10 Top of pool
45
56 44 +18 569.10 0.64 569.75 Top of riffle
69
57 44 +87 567.80 1.95 569.75 Pool
N 67
I 58 45 +54 569.15 0.60 569.75 Top of pool)::-
I 35N
.j::o.59 45 +89 569.15 0.64 569.80 Bottom of riffle
71
60 46 +60 570.15 0.58 569.75 Top of riffl e
159
61 48 +19 570.05 0.79 570.80 Pool
151
62 49 +70 569.60 1.27 570.85 Pool
178
63 51 +48 570.55 0.32 570.85 Riffle
116
64 52 +64 570.20 0.74 570.90
340
65 56 +04 567.90 3.00 567.95 Frozen,depth estimated
331
66 59 +35 567.90 3.00 567.50 Frozen,depth estimated
291
67 62 +26 570.40 0.50 570.90
178
68 64 +04 570.95 0.35 571.30
178
J J I .J I J I t I J J !!I J J J J
)-..1 1 1 ]1 J I
Appendix Table 2-A-7.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)illl Substrate Comments
69 65 +82 571.90
365
70 69 +47 571.25 0.97 572.25
217
71 71 +64 573.80 ----Dewatered
290
72 74 +54 573.70 0.24 573.95
170
73 76 +24 573.15 ----Dewatered
293
74 79 +17 575.35 ----Dewatered
N 339
I 75 82 +56 576.45 Dewatered):>----
I 120N
U"1 76 83 +76 575.05 Dewatered----
975
77 93 +51 576.15 ----Dewatered
1012
78 103 +63 579.20 ----Dewatered
300
79 106 +63 580.25 ----Dewatered
Appendix Table 2-A-8.Data used to develop the streambed (thalweg)profile of Slough 9 (RM 128.3),1982.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)Jitl (ft)Substrate Comments
1 -8 +76 588.10 1.11 589.20
62
2 -8 +14 588.00 1.22 589.20
65
3 -7 +49 588.40 0.83 589.25
142
4 -6 +07 589.00 0.62 589.60
53
5 -5 +54 588.90 0.88 589.80
96
6 -4 +58 589.45 0.45 589.85
N 82I
)::>7 -3 +77 589.60 0.34 589.95I
N 145O'l
8 -2 +32 589.20 0.77 589.95
206
9 -0 +26 588.05 1.96 589.95
26
10 o +00 588.30 1.67 589.95 Mouth,WSEL estimated
274
11 2 +74 588.45 1.58 590.00
245
12 5 +19 587.85 2.07 589.95
7
13 5 +26 589.80 0.18 590.00
114
14 6 +40 589.80 0.38 590.20
98
15 7 +38 591.00 0.25 591.25
143
16 8 +81 591.85 0.22 592.00
146
I J B J J i .J I !.~I .~!I J I I J
i ~l 1 I )-1 J 1 -,1 1 1 i
Appendix Table 2-A-8.(Continued)
Distance Station Thalweg Depth WSEL
Point illl (ft)Elevation (ft)illl (ft)Substrate Comments
17 10 +27 591.70 0.42 592.10
105
18 11 +32 591.20 0.93 592.15
300
19 14 +32 591.50 0.67 592.15
215
20 16 +47 591.40 0.90 592.30 1982/TR-l,WSEL estimated from
290 cross section data.
21 19 +37 591.80 0.70 592.50 1982/TR-2,WSEL estimated from
168 cross section data.
22 21 +05 591.80 0.80 592.60 1982/TR-3,WSEL estimated from
N 28 cross section data.
I 23 21 +33 592.40 0.30 592.70 1982/TR-4,WSEL estimated from~
I 41 cross section data.N
.......24 21 +74 592.10 0.90 593.0 1982/TR-5,WSEL estimated from
91 cross section data.
25 22 +65 592.00 1.30 593.30 1982/TR-6,WSEL estimated from
116 cross section data.
26 23 +81 592.40 0.90 593.30 1982/TR-7,WSEL estimated from
187 cross section data.
27 25 +68 590.80 2.60 593.40 1982/TR-8,WSEL estimated from
138 cross section data.
28 27 +06 590.00 3.40 593.40 1982/TR-9,WSEL estimated from
158 cross section data.
29 28 +64 589.80 3.70 593.50 1982/TR-I0,WSEL estimated from
152 cross section data.
30 30 +16 591.85 1.25 593.10
123
31 31 +39 592.75 0.40 593.15
94
32 32 +33 593.65 0.48 594.15
124
Appendix Table 2-A-8.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft).illl Elevation (ft)(ft)Jill Substrate Conunents
33 33 +57 594.40 0.42 594.80
173
34 35 +30 595.10 0.20 595.30
294
35 38 +24 596.10 0.20 596.30
290
36 41 +14 597.00 0.35 597.30
184
37 42 +98 597.10 0.20 597.30
202
38 46 +00 597.35 0.20 597.55
N 183
I 39 46 +83 598.25 0.10 598.35):>
I 145N
00 40 48 +28 599 ..85 0.35 600.20
295
41 51 +23 600.20 0.20 600.40
241
42 53 +64 601.20 0.00 601.20 Dewatered
177
43 55 +41 600.85 0.00 600.85 Dewatered
168
44 57 +09 601.65 0.00 601.65 Dewatered
248
45 59 +57 602.40 0.00 602.40 Dewatered
145
46 61 +02 602.60 0.00 602.60 Dewatered
149
47 62 +51 604.60 0.00 604.60 Head,dewatered
J J .J J I }J J •~I .~J J J .1 l J
'I I 1 I -.-J ~I J
Appendix Table 2-A-9.Data used to develop the streambed (thalweg)profile of Side Slough 9A~1983.
Distance Station Thalweg Depth WSEL
Point illl (ft)Elevation (ft)(ft)iftl Substrate Comments
1 -2 +40 639.72 0.42 640.14 COSA
63
2 -1 +77 639.49 0.70 640.19 COSA
52
3 -1 +25 639.51 0.75 640.26 COSA
71
4 -0 +54 639.77 0.60 640.37 COSA
54
5 o +00 639.44 0.90 640.34 COSA Mouth of Slough
81
6 o +81 640.04 0.45 640.49 COSA
N 67
I 7 1 +48 640.46 0.30 640.76 COSA)::>
!36N
1.0 8 1 +84 639.52 1.30 640.82 COSA
36
9 2 +20 640.23 0.60 640.83 COSA
31
10 2 +51 640.35 0.60 640.95 COSA
60
11 3 +11 641.78 0.30 642.08 COSA
68
12 3 +79 641.36 0.80 642.16 COSA
27
13 4 +06 641.99 0.45 642.44 COSA
46
14 4 +52 642.35 0.50 642.85 COSA
29
15 4 +81 642.55 0.40 642.95 COSA
33
Appendix Table 2-A-9.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)J.itl Elevation (ft)(ft)(ft)Substrate Comments
16 5 +14 642.44 0.60 643.04 COSA
1
17 5 +15 642.77 0.35 643.12 COSA
22
18 5 +37 643.27 0.25 643.52 COSA
50
19 5 +87 643.46 0.20 '643.66 COSA
40
20 6 +27 643.62 0.30 643.92 COSA Mid-riffle/run
60
21 6 +87 643.82 0.30 644.12 Pool/riffle
N 133,22 8 +20 644.13 3.00 644.13 Estimated depth -deep pool):>
I 50 WSEL surveyedw
0 23 8 +70 642.32 1.83 644.15 Riffl e/pool
53
24 9 +23 644.78 0.19 644.97 Begin riffle/across from beaver
135 lodge
25 10 +58 640.51 4.50 645.01 Estimated depth -deep pool
66 WSEL surveyed
26 11 +24 644.11 0.90 645.01 Shallow point
153
27 12 +77 642.01 3.00 645.01 Estimated depth -deep pool
55 WSEL surveyed
28 13 +32 643.44 1.56 645.00 High point
254
29 15 +86 643.42 1.62 645.04 Deep point/pool
51
30 16 +37 644.49 0.53 645.02 Riffle/pool
38
I J )I J J J J J ]I I j I I J
1 -J )i J "I I J 1 -j 1 !1 1
Appendix Table 2-A-9.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments--
31 16 +75 645.09 0.38 645.47 Pool/riffle
108
32 17 +83 642.71 2.85 645.56 Deep point
69
33 18 +52 644.98 0.58 645.56 Riffle pool
49
34 19 +01 645.55 0.47 646.02 Bend in slough
136
35 20 +37 646.84 0.48 647.32 Pool riffle
159
36 21 +96 645.21 2.16 647.37 Deep point in pool
N 113I37 23 +09 646.83 0.56 647.39 High point in pool)::>
I 61w
........38 23 +70 645.97 1.41 647.38 Deep point in pool
118
39 24 +88 646.75 0.63 647.38 Riffle/pool
15
40 25 +03 647.13 0.48 647.61 Poo 1/riffl e
22
41 25 +25 646.42 1.16 647.58 Deep point in pool
35
42 25 +60 647.32 0.26 647.58 Riffle/pool
70
43 26 +30 647.85 0.29 648.14 Pool/riffle
320
44 29 +50 647.27 0.90 648.17 Deep point in pool
129
45 30 +79 647.96 0.24 648.20 Riffle/pool
179
46 32 +58 649.11 0.26 649.37 Slough branches from this point,
High point,Head of slough
Appendix Table 2-A-I0.Data used to develop the streambed (thalweg)profile of Slough 11 (RM 135.3),1982.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
1 -7 +09 662.80 1.70 664.50 Below mouth
165
2 -5 +44 664.00 0.52 664.50 Below mouth
300
3 -2 +44 665.30 0.50 665.80 Below mouth
115
4 -1 +29 665.15 1.03 666.15 Below mouth
129
5 o +00 665.45 0.85 666.30 Mouth
171
6 1 +71 666.00 0.37 666.35 Top of pool
N 137I
):>7 3 +08 667.90 0.49 668.40 Top of riffleIw212N
8 5 +20 667.55 0.90 668.45 Top of pool,depth estimated
72
9 5 +92 668.30 0.33 668.65 Top of riffle
235
10 8 +27 668.25 0.45 668.70 Top of pool
124
11 9 +51 668.95 0.55 669.50 Top of riffle
157
12 11 +08 669.25 0.43 669.70 Top of pool
94
13 12 +02 670.00 0.44 670.45 Top of riffle
325
14 15 +27 669.80 0.91 670.70 At R&M well
79
15 16 +06 670.50 0.21 670.70 Top of pool
35
16 16 +41 670.75 0.30 671.05 Top of riffle
218
17 18 +59 669.65 1.32 671.00 Pool
139
J ])I ~1 J .I I 1 !I !)l I )J
]1
Appendix Table 2-A-I0.(Continued)
-J ,\-'!I -f
Distance Station Thalweg Depth WSEL
Point .illl J.ill El evation (ft).illl (ft)Substrate Comments
18 19 +98 671.05 0.27 671.30 Top of pool
51
19 20 +49 673.15 0.24 673.35 Top of riffle
117
20 21 +66 673.55 Ice 673.55 Pool
300
21 24 +66 673.05 0.51 673.55 Top of pool
56
22 25 +22 674.30 0.28 674.55 Top of riffle
241
23 27 +63 674.40 0.25 674.65 Top of pool
N 48
I 24 28 +11 675.15 0.25 675.40 Top of riffle)::>
I 300ww25 31 +11 675.45 0.00 675.45 Pool,dewatered
300
26 34 +11 675.35 0.00 675.35 Top of pool,dewatered
302
27 37 +13 677 .30 0.00 677.30 Dewatered
128
28 38 +41 682.80 0.00 682.80 Channel,dewatered
154
29 39 +95 679.75 0.00 679.75 Channel,dewatered
100
30 40 +95 682.55 0.00 682.55 Mound,dewatered
190
31 42 +85 680.70 0.00 680.70 Mound,dewatered
211
32 44 +96 680.25 0.00 680.25 Bottom of pool,dewatered
106
33 46 +02 680.40 0.00 680.40 Top of pool,dewatered
68
N
I
);:.
I
W
-Po
Appendix Table 2-A-I0.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Corrunents
34 46 +70 682.80 0.00 682.80 Mound,dewatered
177
35 48 +47 681.35 0.00 681.35 Bottom of pool,dewatered
139
36 49 +86 681.35 0.00 681.35 Top of pool,dewatered
123
37 51 +09 684.60 0.00 684.60 Head,dewatered
;~m )I J J I ~1 l J J I I ]1 )I J
j ..J 1 ]1 1 j ~_.J -._-j
Appendix Table 2-A-11.Data used to develop the streambed profile (thalweg)of Side Slough 16/16B (RM
137.7),1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
1 -0+84 694.33 2.53 696.86 RUSI Mainstem
84
2 o +00 695.51 1.38 696.89 SI High point end of sand spit
168
3 1 +68 694.60 2.30 696.90 SICO Low point in backwater
45
4 2 +13 695.02 1.89 696.91 COSI Low point in backwater
88
5 3 +01 695.59 1.28 696.87 RUSI Pool/backwater
183
N 6 4 +84 695.80 1.12 696.92 SGLG Low point in pool
I 22):>
w 7 5 +06 696.71 0.23 696.94 SGLG Run/poolU124
8 5 +30 695.87 1.02 696.89 SGLG Low point in run
43
9 5 +73 696.26 0.75 697.01 sasg Riffle/run
118
10 6 +91 697.63 0.25 697.88 SGRU Pool/riffle
107
11 7 +98 695.93 2.07 698.00 SGSI Low point in pool
222
12 10 +20 697.88 0.15 698.03 RUCO Mainstem LWE
26
13 10 +46 698.34 0.00 698.34 LGCO High point,dewatered
42
14 10 +88 696.44 1.55 697.99 SACO Low point in pool
21
15 11 +09 697.59 0.40 697.99 SGRU Riffle/pool mouth 168
27 Head 16
Appendix Table 2-A-11.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
16 11 +36 697.89 0.25 698.14 SGLG Poo 1/riffl e
43
17 11 +79 696.77 1.38 698.15 SISG Staff gage 138.0W1
42
18 12 +21 696.74 1.42 698.16 COSI Low point in pool
78
19 12 +99 696.74 1.41 698.15 RULG Low point in pool
21
20 13 +20 697.62 0.55 698.17 SALG High point in pool
21
21 13 +41 696.64 1.52 698.16 SASG Low point in pool
N 12I
)::.22 13 +53 697.76 0.42 698.18 SALG Run/poolIw200'1
23 13 +73 697.87 0.32 698.19 SA High point in run
23
24 13 +96 697.93 0.30 698.23 SGLG Riffle/run
30
25 14 +26 698.81 0.10 698.91 SGLG Poo 1/riffl e
118
26 15 +44 697.75 1.18 698.93 COLG Low point in pool
41
27 15 +85 698.46 0.45 698.91 COLG Run/Pool
52
28 16 +37 698.49 0.43 698.92 RUSG Riffle/run
91
29 17 +28 699.91 0.10 700.01 SGRU Run/riffle
16.
30 17 +44 699.51 0.53 700.04 RULG Low point in run
51
J I ~j !_J J J )J ,!-~:I J m J ,J
J j 1 J 1 )J
Appendix Table 2-A-11.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate COlTUllents
31 17 +95 699.72 0.31 700.03 LGCO Pool/run
32
32 18 +27 699.31 0.74 700.05 LGSG Staff gage 138.0 S58
13
33 18 +40 699.18 0.87 700.05 SARU Low point in poool
36
34 18 +76 699.73 0.30 700.03 LGSG Run/pool
47
35 19 +23 699.79 0.26 700.05 RUSG Ri ffle/run
19
36 19 +42 700.03 0.27 700.30 RUSH Run/riffle
N 132
I 37 20 +74 700.30 0.28 700.58 RUCO Riffle/run;p
I 33w......,38 21 +07 700.51 0.31 700.82 eORU Run/riffle
87
39 21 +94 700.32 0.54 700.86 RUeO Low point in run
15
40 22 +09 700.58 0.29 700.87 RUeO Riffle/run
138
41 23 +47 701.38 0.15 701.53 RULG Run/riffle
30
42 23 +77 700.84 0.68 701.52 LGSG Low point in run
20
43 23 +97 701.31 0.21 701.52 LGSG Riffle/run
71
44 24 +68 702.60 0.01 702.61 RUeO Run/riffle
34
45 25 +02 702.07 0.54 702.61 RULG Low point in run
30
Appendix Table 2-A-11.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)iill (ft)Substrate Comments
46 25 +32 702.19 0.42 702.61 RULG Poo 1/run
81
47 26 +13 701.63 0.94 702.57 LGRU Low point in pool
55
48 26 +68 702.47 0.10 702.57 LGRU Riffle/pool
87
49 27 +55 703.23 0.01 703.24 LGRU High point
26
50 27 +81 702.93 0.28 703.21 LGSG Low point in small pool
29
51 28 +10 703.26 0.00 703.26 SGRU High point,dewatered
N 12I;r;:.52 28 +22 702.86 0.46 703.32 SGRU Low point in small pool,
w 26co
53 28 +48 703.31 0.00 703.31 SGLG High point,dewatered
33
54 28 +81 702.70 0.38 703.08 SGLG Low point in small pool
22
55 29 +03 703.18 0.00 703.18 LGRU High point,dewatered
58
56 29 +61 703.62 0.00 703.62 CORU High point,dewatered
44
57 30 +05 702.57 0.62 703.19 CORU Mainstem
I I I I ~J i i )J I )]!.1 !j )1
-1 l i I ]1 ].J 1 I 1
Appendix Table 2-A-12.Data used to develop the streambed (thalweg)profile of Side Slough 20 (RM
140.1)~1983.,
Distance Station Thalwe~Depth WSEL
Point (ft) (ft)Elevation (ft)(ft) (ft)Substrate Comments
1 o +00 722.33 2.00 724.33 CORU Mainstem
17
2 o +17 722.79 1.77 724.56 SI Mouth high point
13
3 o +30 722.62 1.95 724.57 SI Low point in backwater
41
4 o +71 723.37 1.22 '724.59 SI High point in run
27
5 o +98 723.15 1.46 724.61 SIRU Low point in run
30
N 6 1 +28 723.51 1.10 724.61 RULG High point in run
I 20)::>
I 7 1 +48 723.30 1.33 724.63 LGSl Low point in runw
\.0 31
8 1 +79 723.54 1.08 724.62 RUSl Staff gage 140.1 W4C
59
9 2 +38 723.55 1.07 724.62 LGRU Low point in run
46
10 2 +84 724.11 0.54 724.65 LGSG Riffl e/run
66
11 3 +50 724.57 0.39 724.96 LGRU Mid-riffle
33
12 3 +83 724.50 0.67 725.17 COLG Run/riffle
47
13 4 +30 724.10 1.09 725.19 RULG Low point in run
30
14 4 +60 724.33 0.85 725.18 LGSA Riffle/run
110
15 5 +70 724.84 0.39 725.23 RUSG Mid-riffle
79
Appendix Table 2-A-12.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
~~49 724.52 0.79 725.31 CORU Run/riffle
103
17 7 +52 724;46 0.90 725.36 RULG Pool/run
14
18 7 +66 723.89 1.48 725.37 RUBO Low point in pool
69
19 8 +35 724.94 0.43 725.37 SGLG Riffle/pool
50
20 8 +85 724.61 0.87 725.48 RULG Steel/shallow riffle
29
21 9 +14 726.13 0.30 726.43 LGCO High point n riffle
15
N 22 9 +29 725.99 0.61 726.60 LGRU Run/riffleI
):>225I+:>23 11 +54 725.60 1.13 726.73 LGSG Staff gage 140.1 S5Ba
12
24 11 +66 725.89 0.83 726.72 LGSG Riffle/run
68
25 12 +34 726.19 0.86 727.05 LGRU Low point in riffle
44
26 12 +78 726.79 0.48 727.27 SGLG Run/riffle
99
27 13+77 726.56 0.74 727.30 LGRU Low point in run
24
28 14 +01 726.62 0.69 727.31 LGRU Riffle/run
36
29 14 +37 727.20 0.40 727.60 RUC1 Poo 1/riffl e
64
30 15 +01 725.22 2.38 727.60 SIRU Waterfall creek enters
57
31 15 +58 724.16 3.45 727.61 SI Low point in pool
169
I I J J 1 J J ,1 I J l I I J ~.~,)
j 1 J Cl 1 J -.O C]----1 1 -1 J
Appendix Table 2-A-12.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
32 17 +27 726.15 1.46 727.61 SICO High point in pool
107
33 18 +34 725.69 1.92 727.61 SICO Low point in pool
105
34 19 +39 725.81 1.80 727.61 SICO Low point in pool
94
35 20 +33 725.18 2.45 727.63 RUCO Riffle/pool
25
36 20 +58 726.76 0.27 728.03 LGRU Run/riffle
176
37 22 +34 728.10 0.06 728.26 SALG High point in run
N 123I
);:>38 23 +57 727.90 0.45 728.35 LGRU Low point in runI
.j:::.39I--'
39 23 +96 728.21 0.17 728.38 LGCO High point in run
22
40 24 +18 727.87 0.57 728.44 LGCO Low point in run
25
41 24 +43 728.09 0.39 ·728.48 RULG Riffle/run
21
42 24 +64 728.68 0.29 728.97 RULG Run/riffle
55
43 25 +19 728.47 0.59 729.06 CORU Low point in run
108
44 26 +27 728.96 0.42 729.38 COLG Pool/run
81
45 27 +08 728.50 0.91 729.41 LGCO Low point in pool
21
46 27 +29 729.16 0.26 729.42 SGLG Riffle/pool
10
47 27 +39 729.69 0.19 729.88 LGRU Pool/riffle
17
Appendix Table 2-A-12.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft) (ft)Elevation (ft)(ft)(ft)Substrate Comments
48 27 +56 729.23 0.65 729.88 COLG Tributary enters
51
49 28 +97 727.79 2.10 729.89 RULG Low point in pool
6
50 28 +13 729.01 0.90 729.91 RULG High point in pool
14
51 28 +27 728.52 1.38 729.90 RULG Low point in pool
33
52 28 +60 729.85 0.08 729.93 RULG Head of pool
25
53 28 +85 729.32 0.74 730.06 RULG Small pool in riffle
N 24I
):>54 29 +09 730.03 0.04 730.07 LGSG High pointI
+=-14N55 29 +23 729.89 0.22 730.11 LGSG Small pool in riffle
60
56 29 +83 730.27 0.00 730.27 CORU Pool/riffle,dewatered
36
57 30 +19 729.52 0.77 730.29 COSI Low point in pool
31
58 30 +50 730.15 0.15 730.30 RULG Head of slough
30 Head of pool
59 30 +80 730.39 0.00 730.39 RUCO High point,dewatered
91
60 31 +71 729.75 0.54 730.29 CORU Mainstem
J !I ~.J ,I J I l J J I ]_I J J I
)J -,1 :-~-1 ]J ~S i -1 --1 --1 1 1 1jj
Appendix Table 2-A-13.Data used to develop the streambed (thalweg)profile of Side Slough 21 (RM 141.8),
1982.
Distance Station Thalweg Depth WSEL
Point (ft)1!tl Elevation (ft)(ft)(ft)Substrate Comments
1 o +00 743.15 ----1981/TR-13
82
2 o +82 743.45 ----1981/TR-12
118
3 2 +00 743.85 ----1981/TR-ll
126
4 3 +26 744.10 ----1981/TR-I0
314
5 6 +40 744.80 ----1981/TR-9
204
N 6 8 +44 745.55 ----1981/TR-8I
)::>214I
+=0 7 10 +58 746.30 ----1981/TR-7w139
8 11 +97 747.06 ----1981/TR-6,point between left
106 and right forks,from this
point thalweg is measured up .
left fork.
9 13 +03 747.75 ----1981/TR-5
206
10 15 +09 749.65 ----1981/TR-4
212
11 17 +21 748.30 ----1981/TR-3
440
12 21 +61 752.10 ----1981/TR-2
297
13 24 +58 753.80 ----1981/TR-l
Appendix Table 2-A-13.(Continued)
Distance Station Thalweg Depth WSEL
Point .llil (ft)Elevation (ft)(ft)(ft)Substrate Comments
Right Fork
1 11 +97 747.06 0.3 747.36 Depth estimated
50
2 12 +47 747.04 0.3 747.34 Depth estimated
124
3 13 +71 747.18 0.3 747.48 Depth estimated
63
4 14 +34 748.74 Riffle
126
5 15 +60 749.48 Pool
N 152I
);:.6 17 +12 748.84 PoolI....110....7 18 +22 749.98 Dewatered
186
8 20 +08 750.84 Dewatered
176
9 21 +84 752.78 Dewatered
224
10 24 +08 753.26 Dewatered
194
11 26 +02 754.06 Dewatered
247
12 28 +49 755.54 Dewatered
I ]J t 1 J ~J J J l I I J J J I J !
-)1 J J 1 j j jj --1 -)1 ]
Appendix Table 2-A-14.Data used to develop the streambed (thalweg)profile of Side Slough 22 (RM 144.3),
1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
1 -0 +40 777.79 1.4 779.19 CO Mainstem
40
2 o +00 778.91 0.30 779.21 BOCO Riffle/backwater
141
3 1 +41 779.57 0.65 780.22 COBO Run/riffle
162
4 3 +03 779.52 0.77 780.29 COBO Pool/run
346
5 6 +49 776.25 4.08 780.33 SI Low point in pool
116
N 6 7 +65 777.74 2.57 780.31 SICO High point in poolI
;J;;-16I
~7 7 +81 777.56 2.75 780.31 SI Low point in pool0140
8 8 +21 778.88 1.40 780.28 SI Mid-point
156
9 9 +77 779.24 1.06 780.30 SICO Low point in pool
41
10 10 +18 779.95 0.34 780.29 SI Run/pool
55
11 10 +73 779.75 0.60 780.35 COSI Ri ffl e/run
13
12 10 +86 780.06 0.35 780.41 COBO Staff gage 144.3 S4C
13
13 10 +99 780.11 0.39 780.50 CaBO Pool/riffle
251
14 13 +50 777.29 3.23 780.52 SICO Low point in pool
21
15 13 +71 778.12 2.41 780.53 SACO Channels converge
34
Appendix Table 2-A-14.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Corrunents
16 14 +05 780.32 0.20 780.52 SALG Riffl e/pool
40
17 14 +45 780.64 0.27 780.91 SGRU Gradient change
88
18 15 +33 782.33 0.12 782.45 BOLG Bend
95
19 16 +28 782.49 0.33 782.82 COLG Riffle divides
254
20 18 +82 782.42 0.66 783.08 COBO Pool/riffle
143
21 20 +25 781.25 1.85 783.10 RUCO Low point in pool
N 7I
)::>22 20 +32 781.73 1.37 783.10 COBOI
.j:::o 34O"l 23 20 +66 782.62 0.48 783.10 CORU Riffle/pool
9
24 20 +75 782.73 0.43 783.16 CORU Staff gage
107
25 21 +82 783.41 0.30 783.71 RUSO Spring fed fork of slough enters
40
26 22 +22 784.66 0.00 784.66 BORU High point,dewatered
3
27 22 +35 784.28 0.00 784.28 BORU Low point,dewatered
10
28 22 +35 784.47 0.00 784.47 CORU Bend,dewatered
52
29 22 +87 784.55 0.00 784.55 CORU Low point,dewatered
63
30 23 +50 786.02 0.00 786.02 CORU High point,dewatered
55
J I J 1 1 J J .1 .~!)
"
1 I J .~!1
-J -1 1 j 1 1 .]11 -J
Appendix Table 2-A-14.(Continued)
Distance Station Thalweg Depth ~JSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
31 24 +05 785.84 0.00 785.84 CORU High point,dewatered
29
32 24 +34 785.66 0.00 785.67 BORU low point in pool,dewatered
43
33 24 +77 787.17 0.00 787.17 CORU Bend,dewatered
109
34 25 +86 787.91 0.00 787.91 CORU High point,dewatered
121
35 27 +70 786.06 0.87 786.93 COBO Low point in pool
19
36 27 +26 787.00 0.00 787.00 COBO High point,dewatered
N 29,
27 +55 786.45 0.42 786.87 SIBO Low point in pool)::>37I
+::0 30........38 27 +85 787.17 0.00 787.17 SICO High point,dewatered
22
39 28 +07 785.96 0.95 786.91 SIBO Low point in pool
32
40 28 +39 787.45 0.00 787.45 CORU High point
32
41 28 +71 787.00 0.00 787.00 SA ~tainstem LWE
9
42 28 +80 786.08 0.96 787.04 COSA Mainstem
Appendix Table 2-A-15.Data used to develop the streambed (thalweg)profile of Upland Slough 6A (RM
112.3),1983.
Distance Station Thalweg Depth WSEl
Point (ft)(ft)Elevation (ft)1!:tl (ft)Substrate Comments
1 o +00 452.75 3.05 455.80 SI Mouth
34
2 o +34 453.09 2.84 455.93 SI Transect at staff gages
109
3 1 +43 453.45 2.47 455.92 SI RJ-TR1
256
4 3 +99 453.97 2.00 455.97 SI RJ-TR2
120
5 5 +19 453.35 2.50 455.85 51 RJ-TR3
N 99
I 6 6 +18 452.62 3.58 456.20 51 RJ-TR4:I:-
I 80-l:::>co 7 6 +98 452.37 3.44 455.81 SI RJ-TR5
103
8 8 +01 451.27 4.72 455.99 SI RJ-TR6
123
9 9 +24 451.88 4.02 455.90 SI RJ-TR7
179
10 11 +03 450.76 5.14 455.90 SI RJ-TR8
105
11 12 +08 454.13 1.86 455.99 SI RJ-TR9
95
12 13 +03 456.07 0.39 456.45 SI left fork bottom of dam
7
13 13 +10 458.64 0.00 458.64 lOGS left fork -top of dam
J J J ,1 I J !J !I J I J }~J J ~
1 j 1 ]~)--._)1 ---1 )1 )I -1 ]
Appendix Table 2-A-15.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Conments
Right Channel
llA 12 +08 454.13 1.86 455.99 SI RJ-TR9
17
12A 12 +25 454.36 1.53 455.89 SI Mouth of right fork
17
13A 12 +42 455.25 0.74 455.99 LGSG Top of gravel bar
18 downstream of dam
14A 12 +60 454.64 1.50 456.10 SI Right fork -bottom of dam
7
N 15A 12 +67 458.72 0.00 458.72 LOGS Right fork -top of damI
~
I
+:::>
~
Appendix Table 2-A-16.Data used to develop the streambed (thalweg)profile of Upland Slough 10 -North-
west (left)Channel (RM 133.8),1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft).llil Substrate Comments
1 3 +79 647.67 2.18 649.85 CO Pool -backwater,
12 sidechannel junction
2 3 +91 646.98 2.83 649.81 CO Pool/backwater/deep hole
26
3 4 +17 649.08 0.78 649.86 CO Bottom of run/backwater
71
4 4 +88 648.73 1.20 649.93 CO Top of run/backwater
55
5 5 +43 648.42 1.50 649.92 CO Pool/backwater
48
N 6 5 +91 647.97 1.96 649.93 SrSA Pool/backwaterI»45I
U1 7 6 +36 648.15 1.77 649.92 SISA Pool/backwater0
70
8 7 +06 648.80 1.10 649.90 SrSA Pool/backwater
36
9 7 +42 648.25 1.68 649.93 SrSA Pool/backwater
54
10 7 +96 647.74 2.20 649.94 SISA Pool/backwater end of log
18 right fork of Slough 10
starts here
11 8 +24 647.54 2.48 650.02 SrSA Pool
36
12 8 +50 647.75 2.27 650.02 SrSA Deephole -pool
19
13 8 +69 649.00 1.02 650.02 SrSA Pool
41
14 9 +10 648.64 1.39 650.03 SrSA Pool
20
15 9 +30 648.89 1.14 650.03 SARU Pool
55
]J .~I I J ]J t I .~J J I I J I I I
]1 ))1 1 j »
Appendix Table 2-A-16.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)1m 1f.!l Substrate Comments
16 9 +85 648.64 1.38 650.02 SABO Pool
48
17 10 +33 648.85 1.17 650.02 SABO Pool
94
18 11 +27 647.72 2.30 650.02 SABO Pool
43
19 11 +70 648.15 1.86 650.01 SACO Pool
3
20 11 +73 647.95 2.06 650.01 SACO Pool
37
21 12 +10 648.31 1.71 650.02 SACO Pool
N 37I
):>22 12 +47 648.46 1.57 650.03 SACO PoolI
U1 49t-'
23 12 +96 647.78 2.22 650.00 SI Pool
50
24 13 +46 648.01 2.00 650.00 SI Pool
61
25 14 +07 648.07 1.93 650.00 SICO Pool
64
26 14 +71 648.20 1.80 650.00 SILG Pool
20
27 14 +91 647.87 2.13 650.00 SILG Pool (mainstem backwater from
80 this point to the mouth
28 15 +71 649.00 1.07 650.07 BOca Bottom riffle
66
29 16 +37 649.65 1.16 650.81 SICO End of pool/top of riffle
81
30 17 +18 649.24 1.58 650.82 SICO Mid pool
71
Appendix Table 2-A-16.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)iftl (ft)Substrate Comments
31 17 +89 649.75 1.08 650.83 COBO Bottom of riffle/top of pool
6
32 17 +95 650.39 0.65 651.04 COBO End of pool/top of riffle
52
33 18 +47 649.33 1.72 651.05 SICO Pool
32
34 18 +79 650.61 0.46 651.07 COLG Bottom riffle
32
35 19 +11 650.86 0.56 651.42 COLG R&M Q Station
N
):>
I
U"I
N
J .,J I j _,J i E .1 ~I ,Ji J ;I I I .~
i •i ]-1
Appendix Table 2-A-17.Data used to develop the streambed (thalweg)profile of Upland Slough 10-Northeast
(Right)Channel (RM 133.8),1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft )Elevation (ft)1ill.(ft)Substrate Comments
1 7 +96 647.74 2.20 649.94 SISA Pool/backwater,end of log
8
2 8 +04 648.22 1.72 649.94 SI
18
3 8 +22 648.58 1.36 649.94 SIBO
24
4 8 +46 648.74 1.20 649.94 SIBO
49
5 8 +95 648.73 1.20 694.93 SIBO
20
N 6 9 +15 648.66 1.27 649.93 SIBO Numerous decaying logsI»15I
Ul 7 9 +30 648.89 1.04 649.93 SIBOw
13
8 9 +43 649.05 0.88 649.93 SIBO
21
9 9 +64 649.16 0.89 649.94 SIBO
36
10 10 +00 648.75 0.78 649.94 SIBO
10
11 10+10 648.91 1.19 649.94 SIBO
21
12 10 +31 649.14 1.04 649.95 5180
24
13 10 +55 649.14 0.82 649.96 SIBO
19
14 10 +74 649.38 0.58 649.96 SIBO
22
15 10 +96 649.34 0.64 649.98 SIBO
22
Appendix Table 2-A-17.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
16 11 +18 649.79 0.38 650.17 5180
23
17 11 +41 649.79 0.42 650.21 5180
18
18 11 +59 649.43 0.80 650.23 5180
14
19 11 +73 649.84 0.39 650.23 5180
'11
20 11 +84 649.61 0.66 650.27 SI80
30
21 12 +14 649.60 0.72 650.32 5180
N 30I
):>22 12 +44 649.88 0.55 650.43 5180I
01 17+:0-
23 12 +61 650.00 0.46 650.46 5180 30 fry in pool near
24 log across slough
24 12 +85 650.00 0.53 650.53 5180
12
25 12 +97 650.27 0.35 650.62 5180
42
26 13 +39 650.35 0.47 650.82 SI80
42
27 13 +81 650.86 0.22 651.08 5180
34
28 14 +15 650.96 0.24 651.20 5180
16
29 14 +31 650.91 0.30 651.21 SI80
23
30 14 +54 650.53 0.72 651.25 SIBO
27
j J }I !I .1 j I J I I J .1 J J I J I
-1 »i J 1 )1 1
Appendix Table 2-A~17.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft) (ft) (ft)Substrate Comments
31 14 +81 650.44 0.82 651.26 S180
28
32 15 +09 650.37 0.89 651.26 SIBO
23
33 15 +32 650.66 0.64 651.30 S180
24
34 15 +56 650.49 0.85 651.34 S180
26
35 15 +82 650.45 0.89 651.34 S180
22
36 16 +04 650.58 0.75 651.33 S180
N 28I
)::>37 16 +32 650.23 1.10 651.33 S180I
U1 25U138 16 +57 650.87 0.48 651.35 51BO
14
39 16 +71 651.02 0.33 651.35 SIBO
23
40 16 +94 650.82 0.56 651.38 5180 Bank seepage -bear kill
19 chum salmon
41 17 +13 650.48 0.90 651.38 SIBO
18
42 17 +31 650.08 1.32 651.40 S180
14
43 17 +45 650.71 0.70 651.41 S180
18
44 17 +63 649.99 1.41 651.40 5180
23
45 17 +86 650.60 0.80 651.40 SIBO
15
N
I»
I
U1
0)
Appendix Table 2-A-17.(Continued)
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft) (ft)Substrate Comments
46 18 +01 650.99 0.40 651.39 SIBO
12
47 18 +13 650.77 0.60 651.37 S180
12
48 18 +25 651.99 S180 Elevation of nail placed on log
as T8M
.1 I t I i J I t I I I J 1 J .J .1 .J I ]
1~1 1 1 --1 -1 i
Appendix Table 2-A-18.Data used to develop the streambed (thalweg)profile of Upland Slough 19 (RM
140.0),1983.
Distance Station Thalweg Depth WSEL
Point (ft)(ft)Elevation (ft)(ft)(ft)Substrate Comments
1 o +00 718.79 0.39 719.18 SISA Mouth of slough
79
2 a +79 718.77 0.46 719.23 SISA
100
3 1 +79 718.58 0.68 719.26 SISA
105
4 2 +84 718.81 0.71 719.52 SISA
127
5 4 +11 719.58 0.57 720.15 LGRU
216
N 6 6 +27 720.32 0.51 720.83 LGRU
I 103::x:-
l 7 7 +30 721.15 0.12 721.27 CaBOU1
-...J 141
8 8 +71 722.01 0.00 722.01 CaBO Dewatered
61
9 9 +32 721.88 0.14 722.02 CaBO
55
10 9 +87 721.95 0.03 721.98 CaBO
...-.-...•••#
r
Appendix 2-B
LIST OF APPENDIX B TABLES
Table
-
I'"'"
I
I
-
1--
I
2-B-l
2-B-2
2-B-3
2-B-4
2-8-5
2-8-6
2-8-7
2-8-8
2-8-9
2-8-10
2-8-11
2-8-12
Cross sectional elevations of Mainstem 2 Side
Channel -mouth,staff gage 114.4W6.Surveyed
by ADF&G on September 22,1983 ••.•••..••.•••••..•...
Cross sectional elevations of Mainstem 2 Side
Channel -lower backwater,staff gage 114.4S9.
Surveyed by ADF&G on September 22,1983 .•.•....••.••
Cross sectional elevations of Mainstem 2 Side
Channel -upper backwater,staff gage 114.4S7.
Surveyed by ADF&G on September 22,1983 •••....•..•..
Cross sectional elevations of Mainstem 2 Side
Channel -Northwest channel Q site,staff gage
114.4S5.Surveyed by ADF&G on August 6,1983 ..•....
Cross sectional elevations of Mainstem 2 -
Northwest channel head,staff gage 114.4H3.
Surveyed by ADF&G on September 24,1983 ...•....•....
Cross sectional elevations of Mainstem 2 Side
Channel -Northwest channel Q site,staff gage
114.4S8.Surveyed by ADF&G on July 4,1983 ......••.
Cross sectional elevations of Mainstem 2 Side
Channel -Northwest channel head,staff gage
114.4H1.Surveyed by ADF&G on September 23,
1983 It
Cross sectional elevations of Side Channel 10 -
mouth,staff gage 133.8W5.Surveyed by ADF&G
on July 17,1983 .
Cross sectional elevations of Side Channel 10 -
head,staff gage 133.8H4.Surveyed by ADF&G on
September 11,1983 .
Cross sectional elevations of Upper Side
Channel 11 -mouth,staff gage 136.2W3.
Surveyed by ADF&G on July 20,1983 ...............•..
Cross sectional elevations of Upper Side
Channel 11 -head,staff gage 136.2H2.Survey-
ed by ADF&G on July 18,1983 ..•..........•.........•
Cross sectional elevations of Side Channel 21 -
mouth,staff gage 140.6Wl.Surveyed by ADF&G
on September 12,1983 .
i
2-8-1
2-8-2
2-8-3
2-B-4
2-8-5
2-8-7
2-8-8
2-8-9
2-8-10
2-8-11
2-8-12
2-B-13
LIST OF APPENDIX B TABLES (Continued)
Table
2-8-13
2-B-14
2-8-15
2-B-16
2-B-17
2-8-18
2-8-19
2-B-20
2-8-21
2-8-22
2-B-23
2-B-24
2-8-25
Cross sectional elevations of Side Channel 21 -
lower Q site,staff gage 140.6S4.Surveyed by
ADF&G on September 12,1983 .••....•.•..•.•..•••••...
Cross sectional elevations of Side Channel 21 -
mid channel,staff gage 140.6S2.Surveyed by
ADF&G on September 12,1983 .•.•.•••......•.•....•...
Cross sectional elevations of Side Channel 21 -
A5 Head,staff gage 140.6S3.Surveyed by R&M
i n 1982 0 II ..
Cross sectional elevations of Side Channel 21 -
upper Q site,staff gage 140.6S7.Surveyed by
ADF&G on September 13,1983 ...•••....•..••..........
Cross sectional elevations of Side Channel 21 -
A6 head,staff gage 140.6H5.Surveyed by R&M
i n 1982 II ~.."
Cross sectional elevations of Whiskers Side
Slough -mouth,staff gage 101.2W1.Surveyed
by ADF&G on September 11,1983 ••••..•..••..•........
Cross sectional elevations of Whiskers Side
Slough -Q site,staff gage 101.2S3.Surveyed
by ADF&G on July 3,1983 •..••..•..•..•..•.......•.•.
Cross sectional elevations of Whiskers Side
Slough -head,staff gage 101.2H5.Surveyed by
ADF&G on July 3,1983 "0.
Cross sectional elevations of Side Slough 8 -
below mouth,staff gage 113.6W8.Surveyed by
ADF&G on September 12,1983 ....•....••.•....•....••.
Cross sectional elevations of Side Slough 8 -
mouth,staff gage 113.6W8.Surveyed by ADF&G
on July 5,1983 .
Cross sectional elevations of Side Slough 8 -Q
site,staff gage 113.6S2.Surveyed by ADF&G on
July 5,1983 ..5 •••••"•••••••••••••••••••••8 ••••••••0
Cross sectional elevations of Side Slough 8 -
head,staff gage 113.6H4.Surveyed by ADF&G on
July 5,.1983 ..
Cross sectional elevations of Side Slough 8A -
mouth,staff gage 125.3W5.Surveyed by ADF&G
on October 19,1983 .
ii
2-B-14
2-8-15
2-8-16
2-B-17
2-8-18
2-B-19
2-B-20
2-B-21
2-8-22
2-B-23
2-8-24
2-B-25
2-8-26
....
LIST OF APPENDIX B TABLES (Continued)
-
i""'",
....
2-B-26
2-B-27
2-B-28
2-B-29
2-8-30
2-B-31
2-B-32
2-8-33
2-B-34
2-B-35
2-B-36
2-B-37
2-B-38
Cross sectional elevations of Side Slough 8A -
upper backwater~staff gage 125.3S6.Surveyed
by ADF&G on July 18,1983 •••.•..•.•.••••.•...••••.•.
Cross sectional elevations of Side Slough 8A -
lower Q site,staff gage 125.3S4.Surveyed by
ADF&G on July 18,1983 •••.••.••••••.•••••.•....•.•..
Cross sectional elevations of Side Slough 8A -
Northwest channel Q site~staff gage 125.3S3.
Surveyed by ADF&G on July 18,1983 •••.•..•...••••..•
Cross sectional elevations of Side Slough 8A -
Northwest channel head,staff gage 125.3H2.
Surveyed by ADF&G on May 15,1983 •••..•...••........
Cross sectional elevations of Side Slough 8A -
Northwest channel head,staff gage 125.3H7.
Surveyed by ADF&G on August 4,1983 •••.......•......
Cross sectional elevations of Side Slough 9 -
mouth,staff gage 128.3W3.Surveyed by ADF&G
on September 14,1983 .
Cross sectional elevations of Side Slough 9 -Q
site~staff gage 128.3S1.Surveyed by-ADF&G on
August 3,1983 1111
Cross sectional elevations of Side Slough 9 -
head~staff gage 128.3H2.Surveyed by ADF&G on
A~gust 23,1983 .
Cross sectional elevations of Side Slough 11 -
mouth~staff gage 135.3W1.Surveyed by ADF&G
on October 19,1983 .
Cross sectional elevations of Side Slough 11 -
Q site~staff gage 135.3S6.Surveyed by ADF&G
on June 29,1983 ..
Cross sectional elevations of Side Slough 11 -
head,staff gage 135.3H3.Surveyed by R&M in
1982 O8 CI ..
Cross sectional elevations of Side Slough 16B -
Q site~staff gage 138.0S5.Surveyed by R&M in
1982 ..
Cross sectional elevations of Side Slough 168 -
head~staff gage 138.0H3.Surveyed by R&M in
1982 ..
; i i
2-B-27
2-B-28
2-B-29
2-B-30
2-B-31
2-B-32
2-8-33
2-8-34
2-B-35
2-B-36
2-B-37
2-B-38
2-8-39
LIST OF APPENDIX B TABLES (Continued)
2-B-39
2-B-40
2-B-41
2-B-42
2-B-43
2-B-44
2-B-45
2-B-46
2-B-47
2-B-48
2-B-49
2-B-50
2-B-51
Cross sectional elevations of Side Slough 20
mouth,staff gage 140.1W4.Surveyed by R&M in
1982 (II '0 III • • •05 II III 4l'II ..It e ..e II ill 0 III
Cross sectional elevations of Side Slough 20 -
Q site,staff gage 140.1S5.Surveyed by R&M in
1982 II e ..III G ..f)0 III III 0 &l ..II •ill'III (I D II II!8 "III (,II
Cross sectional elevations of Side Slough 20 -
head,staff gage 140.1H3.Surveyed by R&M in
1982 G II III '5 ..
Cross sectional elevations of Side Slough 21 -
mouth,staff gage 142.DW5.Surveyed by ADF&G
on May 17,1983 ••..........•.......11I ••••••••0 •••••••
Cross sectional elevations of Side Slough 21 -
Q site,staff gage 142.0S6.Surveyed by ADF&G
an May 17,1983 ..;.II III -0 II ..
Cross sectional elevations of Side Slough 21 -
Northwest head,staff gage 142.0H3.Surveyed
by R&M i n 1982 III Ii'..
Cross sectional elevations of Side Slough 21 -
Northeast head,staff gage 142.0H1.Surveyed
by RM in 1982 .....•....••..00 •••••••••••••••••••••11 ••
Cross sectional elevations of Side Slough 22 -
mouth,staff gage 144.3W3.Surveyed by ADF&G
on September 15,1983 .
Cross sectional elevations of Side Slough 22 -
mid Slough,staff gage 144.3S4.Surveyed by
R&M in
1982 III oil ..
Cross sectional elevations of Side Slough 22 -
Q site,staff gage 144.3S6.Surveyed by R&M in
1982 ..
Cross sectional elevations of Side Slough 22 -
head,staff gage 144.3H2.Surveyed by ADF&G on
September 15,1983 II .
Cross sectional elevations of Upland Slough 6A
-mouth,staff gage 112.3Wl.Surveyed by ADF&G
on J u1y 5,1983 ..
Cross sectional elevations of Upland Slough 6A
-backwater,staff gage 112.3S3.Surveyed by
ADF&G on September 12,1983 ....•..•..•..•.....•.....
iv
2-B-40
2-B-41
2-8-42
2-B-43
2-B-44
2-B-45
2-8-46
2-8-47
2-B-48
2-B-49
2-B-50
2-B-51
2-8-52
.....
-
-
~,
-
~,
-.
LIST OF APPENDIX B TABLES (Continued)
....
-
2-B-52
2-B-53
2-B-54
2-8-55
2-B-56
2-8-57
2-8-58
Cross sectional elevations of Upland Slough 19
-access,staff gage 140.0W1.Surveyed by
ADF&G on September 14,1983 .•.......•...•.•.•...•...
Cross sectional elevations of Upland Slough 19
below mouth,staff gage 140.0S3.Surveyed by
ADF&G on September 14,1983 .....•..••....•.....•....
Cross sectional elevations of Upland Slough 19
- Q site,staff gage 140.0S4.Surveyed by
ADF&G on September 14,1983 .•....•..........•......."
Cross sectional elevations of Fourth of July
Creek -Q site,staff gage 131.1T1.Surveyed
by ADF&G on July 3,1983 ........•...............•...
Cross sectional elevations of Gold Creek -Q
site,staff gage 136.8T1.Surveyed by ADF&G on
May 16,1983 'II ..
Cross sectional elevations of Indian River -Q
site,staff gage 136.8T2.Surveyed by ADF&G
1983 stream flow data c •••••••••••••
Cross sectional elevations of Portage Creek -Q
site,staff gage 148.8T1.Surveyed by ADF&G
1983 stream flow data .
v
2-B-53
2-8-54
2-8-55
2-8-56
2-8-57
2-B-58
2-8-60
Appendix Table 2-B-1.Cross sectional elevations of
Mainstem 2 Side Channel -mouth,
staff gage 114.4W6.Surveyed by
ADF&G on September 22,1983.
I""'"
,
STATION
0.0
0.0
4.6
10.9
13 .6
ELEVATION
483.86
483.49
482.83
480.89
478.79
DESCRIPTION
LBHP 114.46LB ADF&G
GROUND BY LBHP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK
..-33.6 477 .20
61.6 476.69
88.6 475.73
108.6 475.31
135.6 474.98 LEW
-------------------------------------------------------------------
17 2.1
198.6
224.6
244.6
267.6
293.6
311.6
316.6
333.1
338.6
474.54
473.91
473.23
472.73
472.47
472.66
472.58
472.37
471.73
473.00
351.6 474.30
356.3 474.97 RE~"
370.6 475.58,....
388.6 475.16
407.3 475.92 BOTTOM OF LEFT BA~~
409.1 477.91 TOP OF RIGHT BANK
417.2 479.99
....424.4 484.19 TOP OF RIGHT BANK
441.2 485.27 GROUND BY RBHP
441.2 485.47 RBHP ADF&G ALCAP 114.4W6RB
2-B-1
Appendix Table 2-B-2.Cross sectional elevations of Mainstem 2
Side Channel -lower backwater,staff gage
114.459.Surveyed by ADF&G on
September 22.1983.
STATION
0.0
0.0
2.5
6.5
11.6
ELEVATION
483.84
483.50
483.49
481.93
478.42
DESCRIPTIon
LBHP 114.489LB ALCAP ADF&G
GROUND BY LBRP
TOP OF LEFT BANK
MID BANK
BOTTOM OF BANK
-
26.0 476.78
54.5 475.61 ~
78.5 475.65
122.5 475.65
146.6 475.15 LEW
165.5
183.5
199.5
213.5
237.5
250.5
267.5
288.5
298.5
319.5
328.1
342.5
362.5
376.5
382.5
387.1
392.3
398.0
398.0
474.25
473.38
472.76
472.88
472.47
472.52
473.00
473.97
474.18
474.58
475.05
476.16
477 .60
479.91
480.60
482.96
485.23
486.10
486.48
REW
BOTTON OF RIGHT BANK
~UD-BANK
TOP OF RIGHT BANK
GROUND BY RBRP
RBHP ADF&G ALCAP 114.489RB
2-8-2
-
.-
Appendix Table 2-8-3.Cross sectional elevations of Mainstem 2
Side Channel -upper backwater,staff gage
114.457.Surveyed by ADF&G on
September 22,1983 •
STATION
0.0
0.0
4.5
11.8
3LO
ELEVATION
484.93
484.46
484.41
480.05
477 .84
DESCRIPTION
LBHP 114.4S7LB ADF&G ALCAP
GROUND BY LBHP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK
-------------------------------------------------------------------
47.0
65.0
79.2
111.0
128.5
476.36
475.91
475.27
474.20
473.60
LEW
-------------------------------------------------------------------
142.8
152.6
163.6
180.0
206.0
227.8
243.2
271.7
297.0
322.8
473.33
473.55
474.57
474.58
474.10
474.40
475.23
475.64
476.69
476.53
REW
-------------------------------------------------------------------
350.0
372.4
379.0
395.0
404.2
411.4
411.4
476.22
476.92
479.26
480.10
484.07
483.93
484.66
BOTTOM OF RIGHT BANK
VEGETATION
VEGETATION
TOP OF RIGHT BANK
GROUND BY RIGHT BANK
114.4S7RB ADF&G REBAR
2-8-3
Appendix Table 2-B-4.Cross sectional elevations of Mainstem 2
Side Channel -Northwest channel Q site,
staff gage 114.4S5.Surveyed by ADF&G
on August 6,1983.
~-----------------------------------------------------------------~STATION
0.0
0.0
13 .3
19.0
26.5
ELEVATION
489.37
488.96
489.06
483.64
483.05
DESCRIPTION
LBHP ADF&G ALCAP 114.4S5LB
GROUND BY LBHP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK
-------------------------------------------------------------------
35.0
59.0
73.4
90.0
98.0
483.40
484.11
483.45
483.40
483.89
107.0 483.59
129.0 483.72 -130.5 482.34
144.0 481.23
153.0 483.10
""'"
164.2 483.32
169.8 482.29
181.0 482.46 ~
192.0 481.52 LEW
200.0 480.96
~
217.0 480.20
246.0 479.45
265.0 478.33
282.0 478.67 ~
324.0 479.14
376.0
379.0
385.0
395.0
395.0
481.59
482.21
487.27
487.62
487.97
REW
BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK
GROUND BY RBHP
RBHP ADF&G ALCAP 114.4S5RB
2-8-4
Appendix Table 2-B-5.Cross sectional elevations of Mainstem 2 -
Northwest channel head,staff gage 114.4H3.
Surveyed by ADF&G on September 24,1983.
-STATION
0.0
0.0
13 .7
21.5
24.1
37.3
48.0
76.0
102.4
134.0
177 .9
184.9
227.8
254.0
296.8
339.0
392.0
436.0
493.0
541.7
595.6
649.0
678.0
714.0
767.0
ELEVATION
487.68
487.20
487.23
486.35
484.41
484.35
485.43
484.47
485.09
485.15
483.37
484.03
483.59
483.50
483.77
483.83
483.58
483.24
482.73
482.65
482.94
482.74
482.39
482.04
481.92
DESCRIPTION
LBHP ADF&G ALCAP 114.4H3LB
GROUND BY LBHP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK
LWE
2-8-5
Appendix Table 2-B-5.continued.
,~
STATION ELEVATION DESCRIPTION
~,
792.0 481.18
830.0 481.00
870.0 480.96
903.0 481.95 ~
937.0 482.59 RWE
979.0
1017.0
1059.0
1083.0
1093.0
1105.0
1118.0
1118.0
482.38
484.42
483.09
484.14
485.79
487.24
487.52
487.98
BOTTOM OF RIGHT BANK
NID RIGHT BANK
TOP OF RIGHT BANK
GROUND BY RBHP
RBHP ADF&G ALCAP 114.4H3RB
2-B-6
-
-
Appendix Table 2-B-6.Cross sectional elevations of Mainstem 2
Side Channel -Northeast channel Q site,
at staff gage 114.488.Surveyed by ADF&G
on July 4,1983.
-------------------------------------------------------------------
STATION ELEVATION DESCRIPTION
--------------------------------------------------------------------!0.0 488.73 TOP OF LEFT BANK
10.0 484.27 BOTTOM OF LEFT BANK
24.0 483.91
.~48.0 481.92
50.0 480.41 LEW
-
-!
....
I
60.0
72.0
82.0
93.0
101.0
104.0
125.0
135.0
143.0
148.0
158.0
168.0
172.0
478.94
479.12
478.98
478.71
478.86
479.11
479.52
480.54
480.75
483.54
485.24
485.31
488.98
REW
BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK
2-B-7
Appendix Table 2-B-7.Cross sectional elevations of Mainstem 2
Side Channel -Northeast channel head.
staff gage ll4.4H1.Surveyed by ADF&G
on September 23.1983.
~---------------------------------------------------------------~--STATIOU
0.0
0.0
15.6
21.6
26.6
43.7
80.0
118.0
170.0
227.0
412.6
428.0
443.5
455.0
471.0
477 .5
ELEVATION
490.54
490.17
489.85
487.48
485.57
485.90
486.11
485.93
485.46
485.92
485.74
486.26
487.58
491.29
499.43
498.69
499.07
DESCRIPTION
LBHP 114.4HILB
GROUND BY LBHP
TOP OF LEFT BANK
MID BANK
BOTTOM OF RIGHT BANK
MID-BANK
TOP OF RIGHT BANK
GROUND BY RBHP
RBHP 114.4HIRB
2-8-8
~,
"'"
-
Appendix Table 2-B-8.Cross sectional elevations of Side
Channel 10 -mouth,staff gage 133.8W5.
Surveyed by ADF&G on July 17,1983.
-------------------------------------------------------------------
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
-
i
0.0
6.5
24.0
31.0
55.0
108.0
148.0
205.0
205.0
650.90
650.81
646.08
645.41
646 .44
650 .82
654.46
655.14
655.28
CLIFF
LEW
REW
TOP OF BANK
GB
RBHP ALCAP ADF&G 133.8WRB 83
,-
I
-
----------------------~--------------------------------------------
2-8-9
Appendix Table 2-B-9.Cross sectional elevations of Side Channel
10 -head,staff gage 133.8H4.Surveyed by
ADF&G on September 11,1983.
-------------------------------------------------------------------
STATION
0.0
0.0
3.0
5.0
23.0
81.0
96.0
120.0
135.0
152.0
ELEVATION
661.29
660.93
660.20
658.14
658.11
657.14
656.65
656.33
656.25
657.46
DESCRIPTION
LBHP ALCAP ADF&G 134.3HLB83
GB
TOP LEFT BANK
BOTTOl'l OF BANK
~,
-------------------------------------------------------------------
178.0
206.0
227.0
260.0
270.0
285.0
300.0
310.0
320.0
330.0
350.0
360.0
366.0
366.0
657.67
657.21
656.23
657.06
656.37
656.20
656.98
657.03
657.54
658.79
659.02
659.61
659.64
660.73
TOP OF RIGHT BANK
GB
RBHP ALCAP ADF&G 134.3HRB83
2-8-10
Appendix Table 2-B-I0.Cross sectional elevations of Upper
Side Channel 11 -mouth,staff gage
136.2W3.Surveyed by ADF&G on
July 20,1983.
-------------------------------------------------------------------
STATION
0.0
0.0
51.0
73.5
92.0
119.0
130.0
149.0
166.0
185.0
ELEVATION
682.31
682.01
680.53
677 .90
674.58
676.88
676.72
676.58
676.99
676.05
DESCRIPTION
LBHP ALCAP ADF&G 136.2WLB 83
GROUND AT ALCAP
EDGE OF VEGETATION
LEW
THALWEG
188.0 675.69 BOTTOIo!OF RB
196.0 677 .95 RWE
208.0 684.35 TOP BANK VEGETATION
214.5 684.68 GROUND AT ALCAP
.-214.5 685.00 RBHP ALCAP ADF&G 136.2WRB 83
~
!
2-8-11
Appendix Table 2-B-11 Cross sectional elevations of Upper
Side Channel 11 -head,staff gage
136.2H2.Surveyed by ADF&G on
July 18,1983.
STATION ELEVATION DESCRIPTION
------------------------------~------------------------------------
0.0
0.0
2.0
5.5
60.5
125.5
198.5
361.5
455.5
582.5
635.5
822.5
896.5
935.5
975.5
991.5
1017.5
1037.5
1051.9
1051.9
691.28
691.04
691.25
686.23
685.12
685.80
685.62
685.97
686.88
686.74
686.68
686.83
686.07
685.05
684.50
685.91
685.96
687.66
691.09
691.38
LBHP ALCAP ADF&G 136.5HLB 83
GROUND BY ALCAP
VEGETATION TOP OF BANK
BOTTOM OF LEFT BA~~
SPARSE VEGETATION
REW
BOTTOM
THALWEG
LEW
BOTTmI
EDGE OF VEGETATION
TOP OF BANK
RBHP ALCAP ADF&G 136.5HRB 83
2-B-12
~,
-
Appendix Table 2-B-12.Cross sectional elevations of Side
Channel 21 -mouth,staff gage 140.6W1.
Surveyed by ADF&G on September 12,1983.
STATION ELEVATION DESCRIPTION
r 0.0 736.13 LBHP ALCAP ADF&G 140.6W1LB
I 0.0 735.71 GROUND BY ALCAP
15.0 734.48 MID-BANK
19.0 735.23
41.0 733.03 EDGE OF VEGETATION
47.0 731.63 BOTTQIol OF BANK
53.0 731.53
63.0 731.87
105.0 731.53-131.0 730.66
156.0
165.0
180.0
203.0
218.0
241.0
293.0
310.0
346.0
387.0
729.99
729.59
729.76
729.79
729.44
729.22
729.39
729.38
729.79
730.62
LWE
RWE
F'402.0 732.19 BOTTON OF RIGHT BANK
415.0 735.17 MID-BANK
421.0 '735.74 TOP OF RIGHT BANK
436.0 738.00 GROUND BY ALCAP
436.0 738.41 RBHP ALCAP 140.6W1RB
2-B-13
.-
Appendix Table 2-B-13.Cross sectional elevations of Side
Channel 21 -lower Q site.staff
gage 140.6S4.Surveyed by ADF&G on
September 12.1983.
------------------------------------------------------~-~---------~STATION
0.0
0.0
16.0
26.0
39.0
ELEVATION
742.26
741.99
740.01
739.10
737.32
DESCRIPTION
LBHP ADF&G ALCAP 140.6S4LB
GROUND BY ALCAP
MID-BANK
BOTTOM OF LEFT BANK
68.0 736.17 LEW
~
87.0 735.62
117.0 734.89
144.0 735.99
172.0 736.19
197.0
229.0
260.0
277 .0
289.0
293.0
294.0
294.0
735.77
736.44
737.31
737.33
737.80
741.43
745.18
745.91
REW
EDGE OF VEGETATION
MID-BANK
GROUND BY ALCAP
RBHP ADF&G ALCAP 140.6S4RB
2-B-14
-
-
Appendix Table 2-B-14.Cross sectional elevations of Side
Channel 21 -mid -channel,staff
gage 140.652.Surveyed by ADF&G on
September 13,1983.
r
STATION
0.0
0.0
15.0
21.0
30.0
ELEVATION
747.48
747.82
746.27
744.02
742.97
DESCRIPTION
LBHP ALCAP 140.652LB
GROUND BY ALCAP
TOP OF LEFT BANK EDGE OF VEGETATION
BOTTOM OF BANK
-------------------------------------------------------------------
....
44.0
81.0
114.0
170.0
174.0
190.0
195.0
209.0
223.0
231.0
251.0
286.0
302.0
340 .0
350.0
350.0
744.03
744.53
743.78
742.98
742.59
742.19
742.59
742.05
742.27
741.59
742.09
742.19
742.83
744.29
752.72
753.45
LEW
REW
BOTTOM OF RIGHT BANK
GROUND BY ALCAP
RBHP ALCAP l40.6S2RB
2-8-15
Appendix Table 2-B-15.Cross sectional elevations of Side
Channel 21 -AS head,staff gage
140.6S3.Surveyed by R&M in 1982.
-------------------------------------------------------------------
-
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
0.0
8.0
12.0
21.0
32.0
751.27
751.03
746 .20
745.80
744.10
LBHP R&M ALCAP 141.7A5RB
TOP OF LEFT BANK
-------------------------------------------------------------------
40.0
44.0
56.0
68.0
88.0
116.0
119.0
124.0
144.0
744.00
743.80
743.10
743.90
744.20
746.23
746.75
750.10
7 SO .18
BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK
RBHP R&M ALCAP l4l.7ASLB
2-B-16
~-
-
Appendix Table 2-B-16.Cross sectional elevations of Side
Channel 21 -upper Q site,staff
gage 140.6S7.Surveyed by ADF&G on
September 13,1983.
....
STATION
0.0
0.0
26.0
37.0
67.0
ELEVATION
751.78
751 .48
751.33
749.03
746.27
DESCRIPTION
LBHP ALCAP 140.6S7LB
GROUND BY ALCAP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK
93.0 744.29 LEW
113.0 743.26
143.0 744.42 REW
~..177 .0 745.37
219.0 747.09
250.0
260.0
270.0
299.0
305.0
320.0
324.0
334.0
342.0
347.0
347.0
746.91
744.75
744.19
743.23
743.55
743.43
744.23
745.32
749.01
749.85
750.49
LEW
REW
BOTTOM OF RIGHT BA~~
TOP OF RIGHT BANK
GROUND BY RBHP
RBHP ALCAP 140.6S7RB
2-8-17
Appendix Table 2-B-17.Cross sectional elevations of Side
Channel 21 -A6 head,staff gage
140.6H5.Surveyed by R&M in 1982.~I,
STATION
0.0
18.0
27.0
48.0
60.0
ELEVATION
753.04
752.15
746.55
745.15
746.35
DESCRIPTION
LBHP R&M ALCAP 141.8A6RB
TOP OF LEFT BANK
BOTTOM OF LEFT BANK
66.0 746.85
78.0 746.35 LEW
84.0 746.55 -,REW
116.0 747.85 BREAK
138.0 747.35 TOP OF LOW BANK
158.0
169.0
197.0
218.0
285.0
299.0
341.0
390.0
438.0
482.0
744.95
746.65
744.95
747.15
749.05
747.95
749.15
749.05
749.25
748.95
BOTTON OF BANK """
-
526.0 748.65
556.0 748.45 LEW
574.0 748.35
59500 748.25
617.0 748.15 !ii!lWc'l
636.0
660.0
679.0
695.0
706.0
717.0
748 .05
748.35
748.45
748.75
752.65
753.45
BOTTOM OF RIGHT BANK
REW
TOP OF RIGHT BANK
RBRP R&M ALCAP 141.8A6LB
2-8-18
-
-
-
Appendix Table 2-B-18.Cross sectional elevations of Whiskers Creek
Side Slough -mouth»staff gage 101.2Wl.
Surveyed by ADF&G on September 11»1983.
-------------------------------------------------------------------
STATION
0.0
0.0
9.0
14.0
20.0
24.2
38.0
50.0
60.0
70.0
80.0
85.0
90.0
96.0
105.0
ELEVATION
370.02
369.90
368.44
366.36
365.33
363.43
362.49
362.14
362.44
362.09
362.41
362.56
362.42
362.24
362.25
DESCRIPTION
LBHP R&M ALCAP 101.2WIRB
GROUND BY HEADPIN
TOP OF LEFT BANK
MID BANK
EDGE OF VEGETATION
LEW
-------------------------------------------------------------------
r
I
111.0
114.4
119.2
126.5
133.0
133.0
362.61
363.45
365.89
366.57
370.22
370.41
REW
EDGE OF VEGETATION
MID BANK
GROUND BY HEADPIN
RBHP R&M ALCAP 101.2W1LB
2-8-19
Appendix Table 2-B-19.Cross sectional elevations of Whiskers Creek
Side Slough -Q site,staff gage 101.253.
Surveyed by ADF&G on July 3,1983.
--------------------------------------------~~----------~----------STATION
0.0
2.0
09.0
16.0
19.0
ELEVATION
373.21
371.68
369.08
367.42
366.19
DESCRIPTION
HIGH BANK
TOE
LEW
~,
31.0 364.63
38.0 364.21 THALWEG ~
44.0 364.25
50.0 364.37
55.0 364.55
66.0
76.0
84.0
95.0
105.0
125.0
365.33
366.11
368.03
368.16
370.38
370.93
REW
EDGE OF VEGETATION
RBHP R&M ALCAP 101.4S3LB
HIGH BANK
2-B-20
-
.~
Appendix Table 2-B~20.Cross sectional elevations of
Whiskers Creek Side Slough -head,
staff gage 101.2H5.Surveyed by
ADF&G on July 3,1983.
,....
I
,~
STATION
42.0
48.0
64.0
74.0
80.0
85.0
91.0
98.0
108.0
119.0
128.0
142.0
147.0
152.0
ELEVATION
367.42
366.48
368.39
369.98
369.42
368.16
367.62
367.81
367.46
367.33
367.44
368.25
368.27
374.14
DESCRIPTION
LEW
REW
LEW
REW
TOE
HIGH BANK
2-8-21
Appendix Table 2-B-21.Cross sectional elevations of Side
Slough 8 -below mouth,staff gage
113.6W8.Surveyed by ADF&G on September
12,1983.
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
0.0
0.0
5.3
10.8
12.2
16.7
19.7
22.7
25.9
32.7
44.7
49.7
55.2
66.7
71.7
78.7
93.0
93.0
471.23
470.79
470.49
466.70
465.83
466.01
466.29
466.31
466.71
467.00
467.36
467.75
467.28
466.96
467.42
469.09
469.85
470.33
LBHP ADF&G REBAR
GROUND BY LBHP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK.LEW
CHANNEL BOTTOH
REW
BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK
GROUND BY RBHP
RBHP ADF&G REBAR
2-8-22
"'"
-
-
"""
I"'"
,
Appendix Table 2-B-22.Cross sectional elevations of Side
Slough 8 -mouth,staff gage 113.6W8.
Surveyed by ADF&G on July 5,1983.
STATION ELEVATION DESCRIPTION
f"'"0.0 471.11 LEFT HIGH BANK,7.0 470.81
11.0 468.96 LEW
15.0 466.37
19.0 465.85
25.0
34.0
41.0
51.0
74.4
100.0
112.0
467.58
468.42
468.93
469.63
470.19
470.26
470.84
REW
EDGE OF VEGETATION
2-8-23
Appendix Table 2-B-23.Cross sectional elevations of Side
Slough 8 -Q site.staff gage 113.652.
Surveyed by ADF&G on July 5,1983.
--------------------------------------------------~----------------
STATION ELEVATION DESCRIPTION
---------------------------------------------------------------~---
0.0
13 .0
26.0
30.0
31.0
36.0
43.0
52.0
57.0
61.0
64.0
72.0
77 .0
470.97
470.78
470.76
468.94
468.06
467.40
4fJ7.36
467.46
467.74
468.92
470.25
470.76
471.02
EDGE OF VEGETATION
TOP OF BANK
LEW
BOTTOM OF BANK
MIDSTREAM
BOTTOM OF BANK
REW
TOP OF RIGHT BANK
EDGE OF VEGETATION
2-8-24
,~
...'
-
-
"""
Appendix Table 2-B-24.Cross sectional elevations of Side
Slough 8 -head t staff gage 113.6H4.
Surveyed by ADF&G on July 5 t 1983.
-------------------------------------------------------------------
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
0.0
0.0
15.0
22.0
36.0
476.23
476.57
475.76
475.10
475.90
LBHP R&M ALCAP 114.1H1 RB
GROUND BY ALCAP
HIGH BANK
-------------------------------------------------------------------
55.0
71.0
82.0
95.0
101.0
476.08
475.73
475.95
475.56
475.73
-------------------------------------------------------------------108.0
110.0
122.0
140.0
151.0
153.0
160.0
178.0
196.0
205.0
208.0
216.0
229.0
235.0
237.0
476.13
475.13
475.97
475.47
475.00
474.41
474.92
474.53
474".12
474.05
472.96
472.53
481.34
481.73
481.85
THALWEG
HIGH BANK
RBHP R&M ALCAP 114.1HlLB
2-8-25
Appendix Table 2-B-25.Cross sectional elevations of Side Slough
8A -mouth,staff gage 12S.3W5.Surveyed by
ADF&G on October 19,1983.
-----------------------------------------~-------------------------STATION ELEVATION DESCRIPTION
-----------------------~-------------------------------------------
0.0
0.0
8.0
14.0
16.0
566.01
565.82
563.99
563.25
562.49
LBHP R&M ALCAP 12S.2WIRB
GROUND BY LBHP ALCAP
MID LEFT BANK
BOTTOM OF LEFT BANK
-------------------------------------------------------------------
30.0 561 ~34 LEW
52.0 560.68
61.0 560.69
81.0 560.11
106.0 559.67
~
------------------------------~--~----------------~----------------113.0
118.0
137.0
156.0
165.0
170.0
175.0
177 .0
178.0
179.0
184.0
189.0
189.0
559.12
559.25
558.93
558.62
558.93
559.26
560.61
561.36
562.22
566.21
567.57
568.37
568.54
REW
BOTTOM OF RIGHT BANK
MID-BANK
TOP OF RIGHT BANK
GROUND BY RBRP
RBHP R&M ALCAP 125.2W1LB
2-8-26
-
MJl!'oI,
-
-
,~
Appendix Table 2-B-26.Cross sectional elevations of Side Slough
8A -upper backwater,staff gage 125.3S6.
Surveyed by ADF&G on July 18,1983.
f'"''STATION
0.0
0.0
3.0
13.0
28.0
ELEVATION
570.07
569.82
569.73
564.95
564.73
DESCRIPTION
LBHP ADF&G ALCAP 125.3S6LB
GROUND BY ALCAP
TOP OF LEFT BANK
MID-BANK
EDGE OF VEGETATION
32.0 563.77
33.0 563.33
40.0 562.93 LWE
62.0 561.05
94.0 561.52
-~I
132.0 562.29
155.0 561.49
"...170.0 562.88 RWE
171.0 563.86 BOTTON OF RIGHT BANK
187.0 564.75 HID-BANK-197.0
206.0
206.0
566.77
567.53
567.95
TOP OF RIGHT BANK
GROUND BY RB ALCAP
RBHP ADF&G ALCAP 125.3S6RB
2-8-27
Appendix Table 2-B-27.Cross sectional elevations of Side
Slough SA -lower Q site,staff
gage 125.3S4.Surveyed by ADF&G on
Ju 1y 18,1983.
~---------------------------------------~------------~-------------
...,
STATION ELEVATION DESCRIPTION
-~-------------------------------------------~-~-----~-------------
0.0
0.0
10.0
12.0
19.0
23 .0
26.0
38.0
50.0
52.0
54.0
68.0
85.0
87.0
101.0
567.97
567.44
566.12
564.20
564.50
564.26
565.71
565.72
564.84
563.51
562.99
563.25
563.53
563.88
565.98
LBHP ADF&G ALCAP 125.3S4LB
GROUND BY ALCAP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK
DRY STREAM BED
BOTTml OF RIGHT BANK
HIGH BANK
MID-GRAVEL BAR
HIGH BANK
BOTTOM OF LEFT BANK
RWE
BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK
.....
----------------~------------------------------~-------------------
126.0
167.0
171.0
175.0
177 .0
185.0
199.0
215.0
226.0
235.0
239.0
239.0
566.41
565.93
564.55
564.02
563.61
562.91
563.55
565.45
565.26
568.38
568.89
569.28
MID-ISLAND
TOP OF LEFT BANK
MID-BANK
BOTTOM OF LEFT BANK
LWE
RWE
EDGE OF VEGETATION
MID-BANK
TOP OF BANK
GROUND BY ALCAP
RBHP 125.354 ADF&G ALCAP
2-B-28
-
i~
Appendix Table 2-B-28.Cross sectional elevations of Side Slough
8A -northwest channel Q site,staff gage
125.3S3.Surveyed by ADF&G on July 18,1983.
STATION ELEVATION DESCRIPTION
-0.0 573.32 LBHP ADF&G ALCAP 125.3S3LB
0.0 572.90 GROUND BY ALCAP
9.0 573.06 TOP OF LEFT BANK
16.0 570.13 MID BANK
22.0 568.48 BOTTOM OF BANK
-------------------------------------------------------------------
25.0
29.0
35.0
44.0
64.0
69.0
71.0
82.0
95.0
122.0
122.0
566.61
566.15
565.81
565.70
566.03
566.34
567.19
568.61
570.70
571.47
572.08
LWE
RWE
EDGE OF VEGETATION
BOTTOM OF BANK
MID-BANK
TOP OF BANK
GROUND BY ALCAP
RBHP ADF&G ALCAP 125.38LB
-------------------------------------------------------------------
2-B-29
-------------------------------------------------------~-~-~-------
Appendix Table 2-B-29.Cross sectional elevations of Side
Slough 8A -Northwest channel head,
staff gage IZ5.3H2.Surveyed by ADF&G
on May 15,198~.
STATION
0.0
0.0
66.0
100.0
135.0
172.0
232.0
260.0
279.0
ELEVATION
577.11
575.46
574.29
574.23
573.55
573.18
573.11
573.92
582.40
DESCRIPTION
LBRP R&M ALCAP 126.1H4RB
EDGE OF VEGETATION
EDGE OF VEGETATION
RBHP REBAR
2-8-30
~,
-
-
~,
Appendix Table 2-B-30.Cross sectional elevations of Side
Slough 8A -Northeast channel head,
staff gage 125.3H7.Surveyed by ADF&G
on August 4,1983.
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
0.0
0.0
16.5
20.0
24.0
36.0
50.0
54.0
56.0
60.0
583.87
583.52
583.48
580.33
579.30
578.98
578.99
580.33
579.75
578.51
LBHP ADF&G REBAR
GROUND BY LBHP
TOP OF LEFT BANK
MID-BANK
BOTTQ!tl OF BANK
----------------------------------~--------------------------------
62.5 577.80
67.0 579.28
75.5 579.46
86.0 579.64
97.0 579.59
103.0
108.0
119.0
126.0
132.0
140 .0
151.0
168.0
180.0
187.0
200.0
209.0
225.0
234.0
247.8
260.0
271.0
294.5
294.5
578.97
578.05
578.33
577 .37
577 .98
577 .95
577 .18
577 .39
577 .06
577 .12
577.13
577 .31
577 .19
577.60
578.39
579.33
579.10
579.96
580.28
GROUND BY RBHP
RBHP ADF&G REBAR
2-B-31
Appendix Table 2-B-31.Cross sectional elevations of Side Slough
9 -mouth,staff gage 128.3W3.Surveyed by
ADF&G on September 14,1983.
.
------------------------------------------------------------~------
STATION ELEVATION DESCRIPTION ~,
0.0 592.59 LBHP ADF&G REBAR
0.0 591.38 GROUND BY LBHP
3.0 591.36 TOP OF SAND BAR
4.7 590.68
6.3 589.96 LEW ~
10.0 589.62
17.0 589.84
31.0 589.82
41.0 589.63
49.0 589.44 -59.0 589.76
64.7 590.01 REW
74.0 591.96 -~78.4 592.71 BOTTOM OF RIGHT BANK
78.8 595.29 TOP OF RIGHT BANK
93.0
93.0
596.03
596.44
GROUND BY RBHP
RBHP ADF&G ALCAP 128.3W3RB
2-B-32 -
Appendix Table 2-B-32.Cross sectional elevations of Side
Slough 9 -Q site,staff gage 128.3S1.
Surveyed by ADF&G on August 3,1983.
-------------------------------------------------------------------
-------------------------------------------------------------------,....
-
STATION
0.0
0.0
5.0
8.0
11.5
ELEVATION
600.15
599.45
597.49
596.30
593.72
DESCRIPTION
ADF&G REBAR LBHP
GROUND BY LBRP
loUD-BANK
BOTTml OF LEFT BANK
21.0 593.70
,.".41.0 594.08
76.0 593.73
97.8 593.59 LWE
110.0 592.93
-
130.0
148.0
155.7
166.4
168.3
171.0
192.3
192.3
592.57
592.48
593.59
595.35
597.03
598.18
599.67
600.20
RWE
EDGE OF VEGETATION
MID-BANK
TOP OF RIGHT BANK
GROUND BY RBRP
ADF&G REBAR RBRP
2-B-33
Appendix Table 2-B-33.Cross sectional elevations of Side
Slough 9 -head,staff gage 128.3H2.
Surveyed by ADF&G on August 23,1983.
-~-----------------------------------------~~------~---------------
-------------------------------------------------------------------
STATION
0.0
0.0
15.0
25.0
31.0
36.0
46.0
61.0
68.0
78.0
94.0
108.0
122.0
134.0
138.0
ELEVATION
604.97
604.50
604.77
604.45
603.99
603.94
604.11
603.86
603.68
604.01
603.91
604.17
604.09
604.22
604.00
DESCRIPTION
ADF&G REBAR LBHP
GROUND BY LBHP
LWE
~,
-
-
152.0 604.69 -
169.0 604.38
175.0 604.63 RWE
194.0 604.93
210.0 604.63
220.0
250.0
259.0
272.0
289.0
311.0
336.0
360.0
370.0
385.0
391.0
409.0
412.0
416.0
416.0
604.28
605.38
605.59
605.20
605.51
605.50
605.10
604.35
602.69
610.84
602.67
604.00
607.90
608.19
608.68
LWE
RWE
BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK.EDGE OF VEGETATION
GROUND BY RBHP
ADF&G REBAR RBHP
2-B-34
-
-
-
Appendix Table 2-B-34.Cross sectional elevations of Side
Slough 11 -mouth,staff gage 135.3Wl.
Surveyed by ADF&G on October 19,1983.
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
0.0
0.0
3.0
16.5
41.0
64.4
83.4
107.6
114.8
120.0
672.77
672.57
670.96
670.42
669.14
668.15
667.45
667.64
667.38
666.60
LBHP ALCAP R&M 135.5WILB
GB
TOP OF LEFT BANK.EDGE VEGETATION
MIDDLE BANK
BOTTON OF LOW BANK
126.5 666.30 LWE
133.2 665.81-137.0 665.61
144.0 665.83
148.4 665.45
-
154.0
155.7
162.2
173.5
184.6
186.6
186.6
665.75
666.31
666.88
667.78
669.24
671.97
674.00
RWE
BOTTOM OF LOW BANK
MIDDLE BANK
BANK
BANK
2-8-35
Appendix Table 2-B-35.Cross sectional elevations of Side
Slough 11 - Q site,staff gage 135.356.
Surveyed by ADF&G on June 29,1983.
--------------------------------------------------------------~----
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
0.0
0.0
11.5
23 .5
43.6
674.36
674.06
673.69
674.19
673.04
LBHP ALCAP R&M 135.7S2RB
GB
72.0 672.19
98.0 671.53 ~
107.6 670.74 LEW
118.7 670.71
125.6 669.77 THALWEG
129.9
147.3
162.6
669.83
670.78
674.27
REW
MIDDLE OF HIGH BANK
2-8-36
-
-
Appendix Table 2-B-36.Cross sectional elevations of Side
Slough 11 -head.staff gage l35.3H3.
Surveyed by R&M in 1982.
-------------------------------------------------------------------
STATION ELEVATION DESCRIPTION
-------------------------------------------------------------------
0.0
13 .0
21.0
31.0
40.0
688.67
688.10
685.30
684.80
684.90
LBHP ALCAP R&M LRX44
TOP BANK
BOTTOM OF BANK
53.0 685.10
65.0 684.90
79.0 684.70
90.0 684.90
98.0 684.00
108.0
116.0
129.0
140 .0
154.0
168.0
182.0
197.0
213.0
229.0
246.0
263.0
280.0
292.0
299.0
307.0
684.20
685.50
685.40
685.60
685.70
685.60
685.10
685.80
686.60
687.30
687.70
688.30
688.80
689.00
689.70
689.36
TOP OF BANK
GB
RBHP ALCAP l36.5R4LB
2-8-37
Appendix Table 2-B-37.Cross sectional elevations of Side Slough
16B -Q site,staff gage 138.085.
Surveyed by R&M in 1982.
-------------------------------------------------------------------
STATION
0.0
7.0
10.0
32.0
39.0
46.0
53.0
61.0
67.0
78.0
84.0
ELEVATION
706.50
704.87
703.27
700.98
699.97
699.77
699.67
699.87
699.67
705.37
705.62
DESCRIPTION
LBHP R&M ALCAP l38.0S3RB
RBHP R&M ALCAP 138.083LB
2-8-38
~I
Appendix Table 2-B-38.Cross sectional elevations of Side
Slough 16B -head,staff gage 138.0H3.
Surveyed by R&M in 1982.
STATION
0.0
5.0
7.0
21.0
29.0
ELEVATION
708.22
707.00
704.14
703.64
703.40
DESCRIPTION
LBHP ADF&G REBAR RB
41.0 703.10
53.0 703.10
66.0 703.00
80.0 703.30
94.0 703.48
-
-
""'"i
107.0
126.0
149.0
173.0
187.0
195.0
703.70
703.70
704.10
704.70
704.60
708.86 RBHP ADF &G ALCAP LB
2-8-39
.------------------------------------------------~------------------
Appendix Table 2-B-39.Cross sectional elevations of Side
Slough 20 -mouth,staff gage 140.1W4.
Surveyed by R&M in 1982.
STATION ELEVATION DESCRIPTION
~l,
-
0.0 733.76 LBHP R&M ALCAP LRX-53 LB
11.0 732.58
22.0 732.38
27.0 131.58 TOP BANK
30.0 129.48 BOTTOM OF LEFT BANK -
38.0
54.0
75.0
78.0
89.0
109.0
114.0
121.0
128.0
136.0
142.0
148.0
154.0
161.0
168.0
176.0
189.0
201.0
209.0
727.88
726.98
727.08
125.63
125.48
724.98
124.42
122.92
123.12
723.62
124.02
124.32
124.72
124.82
124.92
125.02
125.51
121.22
128.14 RBHP R&M ALCAP 140.lWl RB
2-B-40
--
-
~,
-,
-
Appendix Table 2-B-40.Cross sectional elevations of
5ide Slough 20 -Q site,staff
gage 140.155.Surveyed by R&M in 1982.
--
STATION
0.0
4.0
9.0
13 .0
18.0
22.0
27.0
31.0
36.0
41.0
ELEVATION
732.20
731.70
727.48
726.40
726.00
726.00
726.10
726.10
726.50
726.50
DESCRIPTION
RBHP R&M ALCAP 14O.252LB
TOP BANK
46.0 726.60
51.0 726.80
57.0 726.90
61.0 727.10
66.0 727.20
-
"...
70.0
74.0
79.0
727.48
728.40
729.66 LBHP R&M ALCAP 140.252RB
2-8-41
Appendix Table 2-B-41.Cross sectional elevations of Side
Slough 20 -head,staff gage 140.1H3.
Surveyed by R&M in 1982.
----------------------~--------------------------------------------
i\IO'Ilii
STATION
0.0
15.0
32.0
47.0
59.0
71.0
79.0
84.0
93.0
102.0
ELEVATION
734.25
733.90
733.10
732.80
732.40
732.10
731.73
731.50
731.30
731.10
DESCRIPTION
RBHP R&M ALCAP 140.6H3LB
~I
--~----------------------------------------------------------------110.0 731.00
117.0 730.60
123.0 730.50 -~129.0 730.50 BOTTOM
134.0 731.71
141.0 737.33 LEHP R&M ALCAP 140.6H3RB
2-8-42
tlG'lP,
-
Appendix Table 2-B-42.Cross sectional elevations of Side
Slough 21 -mouths staff gage 142.0W5.
Surveyed by ADF&G on May 17)1983 •
.-------------------------------------------------------------------
-
-I
1
STATION
0.0
9.0
32.0
54.0
85.0
99.0
120.0
130.0
ELEVATION
751.49
744.21
743.55
742.82
742.62
744.36
744.47
750.97
DESCRIPTION
LBHP REBAR ADF&G 1981 LBHP8
BOTTOM OF LEFT BANK
RBHP REBAR ADF&G 1981 RBHP8
2-8-43
Appendix Table 2-B-43.Cross sectional elevations of Side
Slough 21 -Q site,staff gage 142.056.
Surveyed by ADF&G on May 17,1983.
STATION
0.0
19.0
42.0
86.0
90.7
109.0
116.3
ELEVATION
751.21
745.89
746.18
744.92
744.31
744.88
751.61
DESCRIPTION
LBHP ALCAP 141.9S8RB
BOTTOM OF BANK
LEW
REW BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK
2-B-44
.....
-
-
-
-
-
-
Appendix Table 2-B-44.Cross sectional elevations of Side
Slough 21 -Northwest head,staff
gage 142.0H3.Surveyed by R&M in 1982.
-------------------------------------------------------------------
STATION ELEVATION DESCRIPTION
-0.0 759.26 LBHP R&M LRX-56
0.0 758.34 GROUND BY LRX-56
26.0 755.34
39.0 754.74
55.0 754.94
-------------------------------------------------------------------
63.0
74.0
106.0
136.0
158.0
756.61
754.84
755.34
754.64
756.21-------------------------------------------------------------------
-
161.0
198.0
754.84
755.44
2-8-45
Appendix Table 2-B-45.Cross sectional elevations of Side
Slough 21 -Northwest head,staff
gage 142.0H1.Surveyed by R&M in 1982.
STATION
795.0
831.0
867.0
893.0
928.0
929.0
952.0
957.0
977 .0
ELEVATION
757.01
756.81
757.01
756.71
755.67
755.61
757.11
756.68
761.38
DESCRIPTION
BOTTOH OF RIGHT BANK
TOP OF RIGHT BANK
2-8-46
-
-
-
-
Appendix Table 2-B-46.Cross sectional elevations of Side
Slough 22 -mouth,staff gage 144.3W3.
Surveyed by ADF&G on September 15,1983.
"'"STATION
0.0
0.0
13 .0
50.0
66.0
ELEVATION
787.62
787.23
781.77
780.76
780.37
DESCRIPTION
LBHP ADF&G REBAR
GROUND BY ALCAP
BOTTOM OF LEFT BANK
LEW
-------------------------------------------------------------------
71.0 780.01-92.0 779.77
115.0 779.74
132.0 780.34
168.0 780.35 REW
I"""
I
190.0
228.0
266.0
300.0
331.0
379.0
405.0
410.0
443.0
498.0
513.0
523.0
525.0
530.0
560.0
575.0
576.0
576.0
781.03
781.61
781.68
781.77
781.61
781.63
781.72
783.85
783.86
784.27
782.73
782.82
783.92
784.07
782.37
782.78
782.75
784.11
EDGE OF VEGETATION
BOTTOM OF RIGHT BANK
GROUND BY RBHP
RBHP ADF&G REBAR
2-B-47
Appendix Table 2-B-47.Cross sectional elevations of
Side Slough 22 -mid-slough~staff
gage 144.3S4.Surveyed by R&M in 1982.
-
STATION ELEVATION DESCRIPTION
0.0 785.16 LBHP R&M ALCAP 144.4S2RB
10.0 784.19
23.0 784.35 TOP OF LEFT BANK
33.0 780.78 ~
38.0 779.57 BOTTOM
43.0
50.0
55.0
65.0
82.0
96.0
100.0
110.0
779.22
778.89
777.66
778.52
780.94
784.72
787.25
787.56
BOTTOM
BOTTOM
TOP OF RIGHT BANK
RBHP ADF&G 144.3S4A
2-8-48
-
-
Appendix Table 2-B-48.Cross sectional elevations of Side
Slough 22 -Q site,staff gage 144.386.
Surveyed by R&M in 1982.
STATION
0.0
3.0
5.0
17 .0
21.0
ELEVATION
789.54
788.57
785.88
783.72
783.43
DESCRIPTION
LBHP ALCAP 144.6S3RB
TOP LEFT BANK
TOE.BOTTOM OF LEFT BA~~
25.0 783.24
30.0 783.21
35.0 783.21
40.0 782.86
45.0 782.90
.-
-
53.0
71.0
82.0
110.0
783.74
785.29
788.89
789.54 RBHP ADF&G REBAR 3 LB
2-B-49
Appendix Table 2-B-49.Cross sectional elevations of Side
Slough 22 -head,staff gage 144.3H2.
Surveyed by ADF&G on September 15,1983.
-------------------------------------------------------------------
~-
-
STATION
0.0
0.0
13.0
19.0
33.0
54.0
76.0
90.0
105.0
115.0
127.0
135.0
152.0
159.0
169.0
,184.0
191.0
203.0
218.0
232.0
237.0
263.0
265.0
ELEVATION
790.07
791.19
790.58
789.78
788.72
788.96
788.02
787.79
786.78
786.35
787.16
788.87
789.55
789.25
787.85
788.97
787.54
788.68
790.21
791.45
793.53
793.39
795.00
DESCRIPTION
LBHP REBAR ADF&G
GROUND BY LBHP
EDGE OF VEGETATION
EDGE OF VEGETATION
BOTTOM OF RIGHT BANK
TOP OF RIGHT BANK
GROUND BY RBHP
RBHP SPIKE IN COTTONWOOOD
2-B-50
-
-
-
Appendix Table 2-B-50.Cross sectional elevations of
Upland Slough 6A -mouth,staff
gage 112.3Wl.Surveyed by ADF&G on
July 5,1983.
-
STATION
0.0
10.0
16.0
21.0
27.0
ELEVATION
467.29
467.51
466.50
459.61
457.51
DESCRIPTION
LEFT BANK
TOE
-------------------------------------------------------------------
-
42.0
56.0
69.0
71.0
83.0
88.0
94.0
102.0
112.0
120.0
457.23
457.35
456.77
455.96
452.16
452.54
453.42
456.28
457.28
458.64
LEW
REW
RIGHT HIGH BANK
2-8-51
Appendix Table 2-B-51.Cross sectional elevations of Upland
Slough 6A -backwater,staff gage 112.353.
Surveyed by ADF&G on September 12,1983.
STATION
0.0
0.0
10.6
16.6
17 .6
ELEVATION
460.16
459.66
458.30
455.65
455.29
DESCRIPTION
LBHP ALCAP 112.3S3LB
GROUND BY ALCAP
TOP OF LEFT BANK
BOTTOM OF LEFT BANK AND LEW -
19.6 454.62
24.6 454.68
28.6 455.09
30.6 453.84
32.6 453.71
36.6
38.6
39.6
42.3
45.0
45.3
52.2
52.2
453.56
453.93
454.42
455.65
455.82
457.55
458.19
458.88
REW
BOTTml OF LEFT BANK
TOP OF RIGHT BANK
GROUND BY RBHP
RBHP ADF&G REBAR
2-8-52
Appendix Table 2-B-52.Cross sectional elevations of
Upland Slough 19 -access,staff
gage 140.0W1.Surveyed by ADF&G
on September 14,1983.
-------------------------------------------------------------------""'"I
STATION ELEVATION DESCRIPTION
~"'X
0.0 719.57 MAINSTEM REW
20.0 720.37 GRAVEL BAR
27.0 719.94 GRAVEL BAR
.~56.0 719.72 GRAVEL BAR
59.0 720.36 SAND BAR
-------------------------------------------------------------------
!"""\
!!
88.0
98.0
100.0
103.0
109.0
111.0
117.0
117.0
719.95
718.61
718.03
718.64
720.25
721.00
724.52
724.71
SAND BAR
LEW
THAL\o1EG
REW
BOTTOM OF BANK EDGE OF VEGETATION
GROUND BY ALCAP
RBHP ALCAP ADF&G 140.0W1RB
2-8-53
Appendix Table 2-B-53.Cross sectional elevations of Upland
Slough 19 -below mouth,staff
gage 140.0S3.Surveyed by ADF&G on
September 14,1983.
-------------------------------------------------------------------
-
-
....
STATION
0.0
15.0
28.0
38.0
48.0
ELEVATION
719.97
720.55
720.31
719.96
720.42
DESCRIPTION
MAINSTEM LE\ll
-
75.0 720.09 -81.0 719.75
95.0 719.85
105.0 720.02
120.0 719.11 LEW
135.0 717.01
142.0 716.80 THALWEG -,
150.0 718.16
156.0 717.74
165.0 719.03 -.
------------------------------------------------~------------------
168.0
169.0
176.0
176.0
719.38
722.32
722.87
723.23
BOTTOM OF BANK
TOP OF BANK EDGE OF VEGETATION
GROUND BY ALCAP
RBHP ALCAP ADF&G 140.0S3RB 83
2-8-54
-
....
-
Appendix Table 2-B-54.Cross sectional elevations of Upland
Slough 19 -Q site,staff gage 140.084.
Surveyed by ADF&G on September 14,1983.
-------------------------------------------------------------------
STATION
0.0
0.0
6.0
10.0
11.'0
ELEVATION
724.52
724.25
721.84
720.81
720.02
DESCRIPTION
LBHP ALCAP ADF&G 140.0S4LB 83
GROUND BY ALCAP
MIDDLE BANK
BOTTmI OF BANK
LEW
16.0 719.68 THALWEG
18.0 719.65
21.0 720.02 REW
30.0 720.35
33.0 721.86 TOP OF BERM VEGETATION
,....
.....
36.0
38.0
42.0
44.0
52.0
71.0
71.0
720.01
719.45
719.99
721.61
722.43
724.94
725.22
LEW
BOTTOM OF POOL
REW
TOP OF BANK EDGE OF VEGETATION
MIDDLE OF BAl>.'K
GROUMG BY ALCAP
RBHP ALCAP ADF&G l40.084RB 83
2-B-55
I I
Appendix Table 2-B-55.Cross sectional elevations of 4th
of July Creek -Q site,staff gage 13l.1T1.
Surveyed by ADF&G on July 3»1983.
-
STATION
0.0
0.0
3.0
4.5
7.0
ELEVATION
627.69
627.47
626.46
624.79
623.93
DESCRIPTION
LBHP R&M ALCAP 131.1T3LB
GROUND BY ALCAP
TOP OF LEFT BANK
LWE .....
10.0 622.39
13.0 624.09 .~
16.0 623.27
19.0 623.30
22.0 623.41
~.-------------------------------------------------------------------
25.5 624.41
25.5 624.77 RWE
27.0 627.06 TOP OF RIGHT BANK """"31.0 627.98 GROUND BY ALCAP
31.0 628.54 RBHP R&M REBAR
2-B-56
Appendix Table 2-B-56.Cross sectional elevations of Gold
Creek -Q site.staff gage 136.8Tl.
Surveyed by ADF&G on May 16,1983.
--------------------------------------------------~----------------
-
-
STATION
0.0
11.0
20.0
28.0
32.0
41.0
54.0
61.0
ELEVATION
699.81
700.69
695.82
695.09
694.99
695.71
698.16
698.87
DESCRIPTION
RBHP R&M ALCAP GOLD CREEK 136.8T2RB 1982
TOP BANK
LEW
BOTTON
TOP OF BANK
LBHP R&M ALCAP GOLD CREEK 136.8T2LB
2-B-57>
I I
Appendix Table 2-B-57.Cross sectional elevations of Indian
River -Q site,staff gage 138.6T2.
Developed from ADF&G 1983 streamflow data.
STATION
0.0
0.4
0.6
1.6
1.6
ELEVATION
847.49
847.49
846.99
846.59
847.28
DESCRIPTION
LEW
2.4 846.69
5.1 846.48
5.8 846.49
6.1 846.73
8.9 845.84
-------------------------------------------------------------------
10.0
10.1
11.9
14.1
14.2
846.39
846.48
845.79
846.28
846.09
14.9 845.67
18.0 845.99
20.9 845.49
22.1 845.86
23.9 845.39
26.1 845.83
26.4 845.89
27.9 845.09
30.1 845.68
30.6 845.79
33.9
34.1
34.8
36.9
38.1
41.9
43.2
46.1
46.9
47.4
845.49
845.33
845.99
846.19
846.08
846.29
846.29
846.46
846.31
846.19
2-B-58 -
Appendix Table 2-B-57.continued.
STATION
51.6
51.9
55.6
55.8
56.5
ELEVATION
846.29
846.19
846.38
846.19
846.29
DESCRIPTION
59.6 846.28
60.0 846.19
61.9 845.61
63.6 845.78
64.2 845.99
66.9 845.09
70.0 846.18
71.9 845.49
72.2 846.09
75.0 845.99
75.6 846.99
79.6 846.93
80.2 846.69
81.6 847.28
81.9 847.27
-
82.9
83.2
847.49
847.49 REW
2-8-59
I I
Appendix Table 2-B-58.Cross sectional elevations of Portage Creek -
Q site,staff gage 148.8T1.Developed from
ADF&G 1983 streamflow data.
-------------------------------------------------------------------
-
STATION ELEVATION DESCRIPTION
0.0 841.33 LEW
1.8 840.94
5.0 839.54
8.0 838.83
10.0 838.54 ~I
13.0 838.73
15.0 838.44
18.0 838.73
20.0 838.74
23.0 838.53-------------------------------------------------------------------
25.0
28.0
30.0
33.0
35.0
838.44
838.53
838.44
838.53
838.14
38.0 838.33
40.0 838.14
43.0 838.33
44.0 838.14
48.0 838.14
52.0
53.0
56.0
58.0
60.0
838.14
838.03
837.94
838.53
838.34
2-B-60
-
-
Appendix Table 2-B-58.continued.
-------------------------------------------------------------------
......
-
.....
-
STATION
63.0
64.0
68.0
72.0
73.0
76.0
78.0
80.0
83.0
84.0
88.0
92.0
95.0
ELEVATION
837.93
837.64
837.79
837.74
838.13
837.84
837.33
837.74
836.83
837.74
837.34
838.74
841.33 REW
DESCRIPTION
2-8-61