HomeMy WebLinkAboutAPA3560FOR THE
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A
'1'1!ABLE B
WATANA STUDY
PHASE I
CONCEPTUAL PLANNING •••
CONSIDERATIONS.~~·e~
FIXED-WING VERSUS ROTARY WING
USAGE PLAN ... &oo~~·~
COST ANALYSES ..... .;; ... 0 •
ING 9 ..
LABORATORY TEST SUMMARY.OQQ·~
.. ..
l -AUGER
2
FIGURE 6 -
STRIP
& ~1~ST EXTENSI
TYPICA-L GRAINS!
RUNYJAY
.. "' "
......
CURVE
1
3
9
12
15
19
20
23
23
32
34
A
Phase
cos
and
es
Watana
li
ts construct an
The cost
s te s
the a str
s
ew concurrence
act
fi
of cost est and the
t
act encompass the
, cost and schedule control,
control and the of a set
detai these the conclus and
ec~oiJtt:mienaa t-ions the Team now
a
at
The natt..ra 1 st
sand~ small amounts
sect and
l)ue the silt content
rstr
t,e
favors a
to
i
mater
over
at
are
a
11
s p
per 1 a.
3ree of
o:r t
s two
FY ts
s after Alaska Power
the i
the Phase II and
Act ies n ..
l'ili tiy 11 d i two subtasks., The firs
act vi ties such as a deta led f
of a mobilization and
,f a detailed ion cost est mate and t
T'.h.e second sub task 11 include prepara acti iti
a contract of preparat on
ls., , schedule and cost controlp quali
control of a f as built details
estimated cost of providing the subtask activi
000, th a dura ion of 3
t me, the es ed cost and schedul;
ual a ..!.. l be
ta e ion activi ies can i l
and author zat a.r grant.
i are in
izat
be to 7,
, to i
are ect
Authorizat
mini ze poss ic due
muif! 90 al Venture
a izat s soon I
ies A.uthori
i
i
i
i i
i
i
a
s
r
t
s
tC'
rstr nlet tive 1
( rather BLN
rements .. The natural
rstr is relati t
te ith a ia for of a cost
tr
Presented below is discuss on the site t
programs:
1,.
The ls invest ion of the airstr was ::shed
ion th the nter Geotechnical The winter
invest ive and di urbance that
would ve oc-ed if a spr ng program \¥as emented ..
used was a ile moufited on a sel lex
A four nch drill t atta to a
f a providing a means of e
f nat of 1 enti cat on
A -f' -"'-f holes were drilled a ai.rstr
al to an of five G as shown in
, Th~ Boring these holes are in ...,e X
of ill a disturbed
affecting identification and classification, and i ted
to recover material no than 1 - 1 1/2" in size.
were recovered and in tic bags for labora
i sture content and saved in
cloth for ion test later on ..
bor results of the drill program, as shown in FigurEs 2
3 have determ that an organic soil layer of 0-2 feet in
covers most of the airstr An area of deep ics is
loca d j t north of centerline at station 36+00: and a very wet
and c area is located between station 41+ and tat
nor et of frozen was located just th 0
on 36+00 at a of 3-5 fee ..
ng material s a s 1 sand material th
amounts of 1 .. i material ill be the irst st 1
ial"
t
true scale
i ,500 s
and west ,000
is
amounts
ine
as close
between
11 be
f the !-· s
excavati t
the
on
on
north
of
1
t
r
s
s f
face
e
ests "~ere formE:~d
three
es were located i
the ests
the
ens ion
cate
ion
tes e
an add l
c content tests were per to evaluate the heavy
content
at
cons
the
locat
densi
content of
ion
are
Procto.c
along the a
data discussed
.
"'
material for airstrip found
tests were for
The results icated a
33 pcf at an ium
, the low
wou be a
sand which would allow for a well ith a
ng ial thus ing low maintenanceo The s 1
the Watana S te is a al ~~i t"h an sumed
1 and whit:h s
al, There discussi w 11 fol te~r in
the ion surface treatment
Fol of ite inves ga on and labora
taking thes factors into idera i
i li St activities were i i •a of the
are ented in t Sect on to low
c
e
Utili
Feas
i
E ..
the data obtained from the site investigation programs,
activities were initiated. These activities
planni , construction considerations, soil
cement surfacing, runway expansion cost and schedule consider-
at The ls of each of these~ activities follows:
1 ..
where the airstr is located is
th nor s ng essions and hills.. To a in
the tion of the airstr
to follow the natural
runway has been
ma
the availabili
cons
of equ
bulldozer and a one c c
allowing for str i as
ion i preparation of the airstrip is
at the site there is a D-7
end loader. Due to the
1 mi ions available site equ t to prepare the airstrip, and
to disturb the east amount of and pass ble the
ai tr has, been to fi feet ide with ten foot
sh.oulders
F e~ 5 ed ical airstrip section The soi
ized sur ing is an i d sc ed later in the repor 0
The
sur
avai
to
ditches run both s s the runway and
f at nts in
ditches are to drai the a
1
that the surface can be used as soon as poss e a
The str surface is to be at 2~; in the
rect to create dra free st:trface water.
mater can not :t
excavat f lter ic 11 be used to s lize
2e t airstr is summer~ extra
ion must the exist ng and equipmen
a
t.e
small and a small roller must be i
runway 1 be 1
rna er
the front-end
1
and
is 11 gene
ll pc
ion o the str pQ Earthwork and
ted to the
and move
i ith t~e
loader
nsi
1
ili c the D-7
it es of
ion of mater a
bulldozer smal
ted compac
ed
Tt,e
mater
mater
used as f
a
fi
construct
of
11 be to and blade the c
to the e
cut is
I of 5,3 c is l
s to be 1 rema c
fi cut stat to
1 between stat to 37+00 where the t
ear er the ~ the materi s are
materials are a
airstr use during
October). Labora
th
wet
amounts of
whi
ience gained dur the past
has shown conclusi
years in the
that soils can be
the addition of relat small
The
e surfaci
reduc
lizec....
materi
main-e
1 xture results in a
ng addit 1
cos s"
t
i to
crown
ing a soil cement surfacing in the first foot of
Watana airstrip would provide a hard surface and
at the
th a 2%
ide very good drainage characteristics. Due to
settling and load the stabilized soil will eventual
a type mater that could be as
t
dur normal maintenance of the airstrip and if
i
the factors that account for successful of
~ 1-cement as a sur is careful predeterminat of
icat eng~neer control factors in the labora and their
To the amount of cement required, a program
in p.cogress at and Lawson°S la.bora
is
Site ls, r en tat of the airstrip ion materials were
to the for visual exam ina ion and evaluation
1 was then classified by the AASHO so that the
Indus Standard empirical and chctrts made Portland
Cement Associ tion can be used for the short cut method The shor
cut method is based on standard soil and provides trial mix
ecommendations to he reduce the time needed to perform ious
tests
Due to
test
The
ning the theoretical soil cement rat from size
ics, soil cement inders are then prepared in
s for wet-dry tests, thaw tests and ive
eaks at 7 days, 28 days, and days ..
t required for the completion of this phase o1: the
th~:: results of 1 stabilization test program 11 be
, as a supplementary report as soon as the results are
a
ili
descr
A ma
above is considered to be a
expansion may be required before
construct of the dam ns.. To the airstr to z:our
would require ing the temporary airstrip from
station 0+00 to station 40+00o The soil between station 0+00 and
14+00 11 requ remedial treatment of a soft foundation area and
require the minor use of ma earth moving equ to
excavate and a constant sl~pe airstripo
If stil airstr is required to support the camp
construction activitiesu the east extension can
ing a runway of si thousand feet is area of
require major earth\vor to take care of the ·.Ne
ft between station 1+50 nd station 47+00 Also needed
a saux:ce o::
It to
5 ..
and grav so that
a land surfnce
alrstr
ttl
details previously GlS
can
the conceptual planni
cost and schedule est were Est.unates
were.based upon preparat of two types of prelin,inar:·}
a of which are 2, 70 foot., The de:f~ni tion
each these of strips are defined below:
The nter stri is to be prepar to the standard
without a runway surfacing. Preparation is based
the avai li of a D-7 Dozeri a frontend loadero a sma
motor and a small rollero The dozer and loader ~re alr
a the s t A small motor and roller wil have o be
mobilized he1i to the site pr or to the start of
t o:n.,
ion acti ities i 1
dr i feature ..
ze closing up the sur
is envisioned that with
of
te
fences and
i
serv ce to the Watana
, is to be
1cstr can :not be ed ..
main enance o
dur
i~d heli
order tude cost for the p:reparat on
:is est to be ,000 This estimate is
7-man 1t::ons truct team on each shift, two shifts
ili standard rates
durati thir is calculated
li:F!;at the cost of materia s and istical
thi estimate cost.,
r
f
s of
a
are
t must be noted at this time that airstr prepar tion acti ~~ es
cannot be s ted until tti irements
B
The year round strip is proposed to be pr
mens discussed above the add
1 unway s facing. Prepara
the inter str described
zed so s faci
e
to the
a one
s ba
i
so
ce
s
i
:f
i s f
s di s
s
s a
0
Four fixed-wing tr per week from to
Watana th personnel and luggage.
One tr per week from to !ria tana with
s ies and fre
Two fuel lifts of 100,000 gallons il &
November) ..
0
usage with hi maintenance factor.
40% of fli s are able to use the strip The
remainder use helicopter service.
fixed-ing tr ps per week from Anchorage to
Watana with personnel, luggage and s ies as
possible).,
Remainder of f i ts are fixed-ing o Ta keetna,
r tana as desc bed n de 1 Case
bel
0 Local Watana helicopter support field act
11 be equal in all cases and is therefore not
considered in the cost comparison~
o Use of 1983 costs-unescalated.
ies
o Four fixed-wing trips per week from Anchorage to Watana
with personnel and luggage
o One trip per week from Anchorage to Watana with
0
0
ies and freight$
Two fuel lifts of 100 00 lons each~
Local Watana heli support of field activi ies
will be equal in all cases and is therefore not
considered in the cost comparison@
o Use 1983 costs-unescalated
6
f
s
er -s
t r cos s
i
t t
a
o 2 400 quarter -work hour cost for
(str open)
0
0 ,000 cunstruction ~st
$ 2 :600 per G~arter transport cos s
0 75,000 lift costs
0 $ 32,400 per qua -t'l/ork cos for a vel
0 o construct on t
0 50,600 quar t nspor ts
0 7 f'OO haul cos
400 q er wor¥: for
la o the e st case
6.,.
ana is of these relationsh indicates that the ent 1
earned savings from fixed-wing ce to the camp 11 ful equal
the ,000 (;:O.hstruction cost the nter str after 11 months
usage .. In the same , the br evr-n nt the
round strip is found to be 17 months.
t=ven point is r , the winter strip accrues
over the icopter case at an average rate of ,000 per
r round str
case at an average rate
accrues
0,000 per
ngs over the helicopter
tak 11 1these
into cons
the total savings a
tion. If the strip is built this Jul 198
to
imately
il 198 the construct on
nter str is ile the t
the year round strip is lso approximat
At this t mec sis must be gi
during break up and fr ] winte str
weather the as umed usage pa ern cou d
heli er usage case thus increa i
year round st ip provi es a much i r e
overa 1 cost sav ngs as ll
The accumul ted cost ech of s thr
es in the table 1
i
ts
s
1 sc~vings
7 000
r a
the
5
Fuel Haul
(summer
Cost-Travel
Cumulative Costs
Maintenance
Cost-Travel
Cumulative Costs
Fuel Haul
Maintenance
Workhour Cost-Travel
Cuwulative
Fuel Haul
!."-Travel
Costs
AIRSTRIP STUDY
-0-
-0-
50 600
-0-
-0-
-0-
,600
-o-
of
4/S6
Win tel."
40:t
30,000 ~i~tenance (Q~~~~~
Workhour Cos·t-Travel
Costs
(winter)
Cost-Travel
Costs
Operation
from to 4/86
AIRSTRIP STUDY COSTS
$ 26,600
18,000
50,600
-().,·
$ 50,
171,000
-().. ..
2 of
from 7/83 to 4/86
$ 1,.675,000
$ 1, 685,000
$ 2 152
BRJ:w< EVEN
o The winter
at the rate of
will amount to
from to 6
usage as a base:
breaks even in cost in 11 months ( 6/84), and accumulates
,000 each year thereafter , the total accumulate.d
477
The year round breaks even in cost :!.n 17 months ( ), and accumulates
at rate of $ 000 each year thereafter. By 11 the total accumulated
will amount to$ 467,000.
of either fixed the \'llatana Site this summ.er
use the
1
C!RI
2
3 ..
CIRI
FAA
Intent to
5 ..
6.. Wetla~:d
ion COE
TABLE A
Watana Base C4mo-~rot~e;ed Airstrip
Permits and U:;e Authorizations
Inc .. APA Agreeme1t In effect
APA A.ca~eemer1t: In effect
select)
Purchase
Form 7480-l 21-30
Form 5280-l up to 30
10 days
Will
e:Ktension
require
e:Ktension
(1expi.res
1/1/84)
upon Native
definition of
subsurface
or
surface use ..
11,
Reasonable
Assurance
Clearance
COE
TABLE A
watana Base
Permits and Land Use ..................... u .. .s. • ..:..u ........ _,,._;;;;JJ
est .. 30
to I.UQ.,L.I,,j.I..Q..I.4.&.!'U~
State water
est 30
nol;e Wa tana Base
None
has a ...... ,~ ......... -~..
issued to
CIR:-H&lSJ"
1980
and archae-
clearance
recommended ..
should
ar.y cultural
resources be
must b.e
ion
TABLF
SIEVE. ANAlYSIS (1)/o)
t:OB&lf GRAVEl. SA1'1D SllT/CLt..Y
4
9 53 .. 9
3 l :38 .. 6 39
18 ..
44 .. 5
55 37 .. 7
9 .. 4 48 .. 2
12 .. 7
TABLE B
7 2 .. 1
.2
T.A.BLE E
PARTICLE SIZE ANAlYSiS
S!EV:? ANALYSIS (~/o) I
o~
COBSL RAVEL SAJ\ID SILT/CLAY ~ ~t; x :E~
SM 10 .. 8 58 .. 8 30 .. 4
16 .. 5 52 .. 1 31 .. 5
9 .. 8 4 .. 6 35,6
20 .. 0 52 1 27 .. 9
5 .. 4 54 .. 4 39m7 yes 23 .. 5
8 .. 5 52 39 .. 5
16 .. 8
s:
TABLE B
PARTIClE SIZE ANAlYS':,
15.6 62 .. 8 31..6
SM 3 .. 0 51" 31
SM 57 .. .;;c .. 6
29 .. 1
A HERBERG
liMITS
tl. P.L
21..3
11 .. 0
37 .. 6
.72
TABLE B
PARTICLE SIZE ANAlYSlS
7 .. 2
5
ATTERBERG
LIMITS
1113,234,000
1113,2.33,000
N3,Z32.,000
eAS5 AIRSTRIP AUGER BORINGS DRILLED BY HARDliiiG
LAWSON ASSOC. APR!~ 1983.
oMC5 MAN CAMP BORINGS DRILLED BY HARDING LAWSON
ASSOC. APRIL 1983.
ALASKA POWER AUTHORiTY
i-·--
3USITNA HYDROELECTRIC PROJECT
WATANA AIRSTRIP
AUGER BORING LOCATION PLAN
Figure 1
;~
1==:;;,,=:1 API'IIOVU> 'l OATe I I CO!m!ACT N\-,APA~t$K~ ANCtl<li\ii.O£, AIA'>IIA Al'll.l6,t11&5 ·I
20+0('
TOP OF l'"<ADE ~
MAIN AIRSTRIP "',._
22>00 24t00 26+00 28+00
STATION
AIRSTRIP CENTERLiNE
MAIN AIRSTR!P (2,500')
SCALE· t • 100' HOR
t"• 2' VERT.
30+00 32+00
PBQEILE "o-o•
(SECTION 75' NORTH OF CENTERLINE)
GRAY
StJ
2266
2264
2262
2260
2258
2254
34+00 36t00 38+00
GRAY AS I I
SM PT
40•oo
MANY BO:ULDERS AHO COBBlES
A"t -OR NEAR SUAFACE
\
LEGEND
AtRSTRfP CENTERLINE
WEST EXTENSION ( 1 .400')
10•00
z
0
~ ~ w
....I w
2284
2282
2260
2.278
2276
2274
2272
2270
2268
2266
2264
2262
2260
2252
2250
SCALE' I" • 100' HOR
1" • g' VERT,
AS21&50
A$22&51
liA»V 90ULOERS
I<EAA SWlfJ\CE
WATANA AIRSTRIP
SOlL BORING
~OFILES
SECTtON.S
U. s. Shndud Sieve Numben Hydrometer
uu I • ··~~ . ~~-I
. -,--1-~ ----:--
90 I :go
I I """ I
80
-r-1--:---,------I~~
!BO -1-· --~
f--c-f--c-·---!--~-1-
'>
171 ro -----!------
I --t-1-
;o -----I-1----1--
-·-=~ 16
----!-------1-----:----1---r-
)0 !-------i-50
1-
~0 .,. ___ ----t! -_ _s ~ " -r--r-~ -~ ,_
'U\ r----L ---i\ I ---1-30 '"'"' 1\' -~~ -r--·---:---i-1--1--~-~ ---1---
w -------t-1-~~ ~---· -
--1-1-· -,_
" --1-
2 11!2 1 J/~ I '2 3/S 10 20 40 60 SOlOOHOlOO 271.1 100
10 ----1-----------1-t-c----r r-----~-~ 10 r::~-t:::---~. 1-'·----·-~---
__ ,_ --·!-------I-1--r----~---
_,, __
0.001° 1, 100 ~0 10 5 l 0.5 ('.·, 0.05 O.Ol 0.005
Gr~ln Size ln Mill !meters
I I GRAVEl I SA!IO I _l!IHS ~!lJ I Coana I Flm; I Coerse I llcdlum Fine 51 t Slru
No. ______ _
Oa t e APR~::_._! 9 B 3 _________ ---·--·-
TYPlCi'i.L GRAIN SIZE CURVES
TYPICAL RUNWAY SECTION
NTS
REMOVE ALL PEAT BUT DO NOT
EXCEED TWO FEET. IN AREA OF
DEEP PEAT PLACE FILTER FAPRIC
ON REMAINING PEAT.
WATANA AIRSTRiP
COMPARISON OF CASE ;;;:; ,
-LEG£ N D-
7/63 !0/83 1/84 4/84 7/84 !0/84 1/85 4/85 7/85
I) ACCUMULATED SAVINGS
lf!INTER STRIP I 41'7, 400
A.LASi<A POWER AUTHORITY
R3TRIP
ECONOMiC COMPARISONS
APA-C-SK-6
10/85 1/BG 4
1980
SUSITNA HYDROELECTRIC PROJECI
PLAN OF STUDY
TASK 2
SURVEYS AND SITE FACl UTI ES
SUBT ASK 2.03
R£SUPPL Y AND EMERGENCY SERVICES
A RSTRIP LOCA-:-iQI\j STUDY
Prepared For:
SK;\ POWER .'>.UTHORITY
nd
ACR'=S AMERICAN, •. ~CORPORATF:D
Prep..1red 8 v:
R C 0 i'·J S U L T ,'\NT S , ,
TABLE OF CONTENTS
SECTl.ON
A. Introduction 1
8. Location Parameters 2
c. Approa..:h 5
D. Analysis 5
E. Recommendations 7
F. Quantity Estimates ~ \"Jatana Airstrip 8
G. Construction Cost Estimates 9
TABLES AND EXH 8:TS
T::~ble I -Dimensional Standards 1 Basic and Gener·a! 4
Transport .t,irports
Exhibits Map 10
2 Layout Plan -Alternate A
3 C:an View Alternate A
4 ProfH,~ A 13
5 Typicai Cr·oss
7 Drill
8 \vin'i Rose
.....
A. INTRODUCTION
This Study was done as an integral part of the larger Susitna
Hydroelectric Project studies. The Susitna Hydroelectric Project
includes proposals for 011e or more :arge hyJroelectric dams on the
upper Susitna River between the Parks Highway near Talkeetna
and the De11ali 1·1ighway. Site locations for two major dams are
being studied. The site identified as 11 Watana Dam 11 is the further-
est upstream site. Winter access is possible on the North side of
the river near the Watana site.
During the winter of 1979/80 a forty man base camp was moved in
using a 11 Roligon 11 train from the Denali Highway. This camp is
focated on relativety level terrain North of the Susitno. River a
short distance upstream from the Watana site. Crews have been
working out of this camp since the early spring of 1980 and con··
tinuous field operations are exJ:'eCted well into 1982 ;: nd beyond.
The camp h.as been labeled 11 Watana Cdmp 01 •
Access to W-<itana Camp at this time is possible by helicopter on a
year round basis and by Roligon during winter months. it is
difficult to anticipate supply requirements with sufficient accuracy
to allow resupply by Ro!igon on an annual basis. Resupply by
helicopter is difficult .:nd mu more costly than if fixed wing
aircraft could be used. In addition personnel access could be
provided much more economically by fixed wing aircraft.
A determination has been mac;~ that ~dequate landing facilities for
fixed wing aircraft should be provided near Watana Camp. The
pLirpose of this location study is to detehline the best location for
a runway capable of handl:ng fixed wing aircraft up to and in-
ct7fding the Twin Otter.
susl4/a
4. In order reduce the permit requirements Watana Camp was
located on fnlet Regional Corporation land rather than
SLM land. It was felt that, if the runway for the
Twin Otter should also be confined to Cook Inlet Regional
land.
5. The orientation of a runway should always be determined, as
much as by the prevailing winds. Wind data was
available from the camp weather station.
6. Wet land encrdchment is always a consideration from an
Construction on wet areas is gen-
comp!ex and than on wt;!l drained soHs.
It is desirabie to choose an with a mini-
mum of water or,obfenr~s.
7. Available soils data has been included as a parameter. Soil
logs from barrow exploration were availabie and were
cor.sidered. The location of available material sources and the
of native materials for construction have
!mioaj::ts on project costs.
8. WhHe not specified FAA criteria for a General Transport
runway is assumed to control. Basic demensions are shown in
Table 1. Maximum runway grades are not to exceed 2%.
Exhibit 4 shows the primary cross-sec1:ional requirements.
susi4/a -3-
TABLE I
DIMENSIONAL STANDARDS
ITEM
Runway I.ength
Width-Runway
.. Tax.it~ay
-Runway Safety
Ares.
Runway.Centerline to
-Ta"X:{way Center-
line
-AirpLane Parking
Area
·Pa:rallel Runway
Taxi\Jay Centerline t:o 1
-Airplane Parking!
Area
-Fixed or Hovabla
F
G
Obstacle !
·Parallel Taxiway J
B 1ilding Restriction
Line to
Center-
K
!..
15'
40'/3
150* 300' 300'
275' 300f 475'
250'
50'
As Pe Curren FAA Criteri
J
too•
300 1
75 f
175 1
100'
200 1
350'
100'
PRECISION RUf,~AY
FOR BASIC OR
GENERAL TRANSPORT
As requ i rE!d by
critical airplane
1.50 1
40'
500'
400'
650 1
200 1
300 1
. 750 1
200
I~ Letters are keyed to those shown as dimensions on Figure 3.
/2 Transport Column A is to be used only at those low activity sites
an existing utility runwayt having no anticipated need for an
instrument: procedu-ce of any kind, is extende-d for business jets.
For all other transport airports use Column B.
Make straight ta:<iway srctions 50 feet when ni with a wheel trend
over 25 feet will use the airport. A width of feet will be required
for a.irptc.nes with tread over 35 feet. l'!ake curved sectio11s confor:m
Figure 8.
Taken from FAA AC 150/5300-6
-4-
C. APPROACH
Work began in tate Augus~ with a detailed analysis of wind
data accumulated the weather stations at Watana Camp. The!
winds are out of the North East such that an orientation
of North 60° East will good wind coverage under most
weather conditions. The wind data is shown on Exhibit 8.
With the winds documented and the
1:).
and dimensions chose from FAA Advisory Circul¢rs the selection of
aiternative locations could be made. Contour mapping gt" "'rated
by the Corps of Engineers on a scale of 1 11 =200 1 with 5 tour
intervals was IJsed. Two potential runway sites were ide .. ~. ed on
close to Watana Camp. Alternate A is the contour
South of camp as close as dimensions in Table 1 will allow.
Alternate 8 is on a low North of camp at about the same
distance. There were no other locations apparent that were close
to Watana Camp.
Each alternative was reviewed to determine how well each control-
ling parameter was satisfied. Alternative A appears to be the
preferred location from this review. A field trip was made to
review each alternative. Alternative A was flagged in the field for
review by the Archeological team. :he Archeolugical review team
cleared the Alternative A location.
0. ANALYSIS
In many respect both alternatives were essentially equal.
8oth alternatives were selected to fit FAA criteria in an effort to
provide the safest possible facility
susi4/a -5-
Soils are essentially identical. Both locations lay within an area
which has been identified as a potential material source far the
dam. Alternate A is located a1ong the edge of the borrow area
and would have less impact on use of the barrow area than would
alternate B.
There is only minor differences in the amounts of wet land that
wm be effected by either alternative if extended to dimensions
for the C-130. A portion of alternate A can be developed
to handle the Twin Otter without encroachment on
obvious wet lands or a need for drainage provisions other than
carefut surface ....... '"'""'',.."..,
Alternate A can be entirely on Cook Inlet Regional
l<:.~nd. This is true not only for the first stage Twin
Otter but for the C-130 capability also if length can be
held to 5600 feet. Alternate 8 on the other hand is located
Alternate A is positioned so close to Watana Camp that an aircraft
parking and i.lreas can be provided adjacent to the existing
fuel storage area and the camp warehouse. This will for
easy servicing and unloading of aircraft.
Grades are such that if alternate B were selected an access road
of approximately one-half mite would be necessary to move fuel to
planes or personnel and freight from planes. From a logistic stand
point alternate A has a major advantage over alter·nate 8.
The principal advantage of alternate B over alternate A deals with
the clear zone surface on the Westerly approach. This approach is
over the North end of the Watana Dam. The approach to alternate
B provide!: a very comfortable clearance of hundr-ed feet
over what may be a active construction area if the dam is
built. Alternate A provides minimum verticle clearance over the
susi4/a -6-
potential construction area. If a runway capable of serving C-130
aircrCJft is ever:tually bu:L Of' alternate A careful consideration
must be givt.."'' to potent!al conflicts between construction equipment
and the clear zone surface fer the Westerly approach. An accept~
able dear zone can be maintained for alternate A in any rase.
When alf parameters are considered alternate A is the more
attractive alternate for the following reasons:
1. Best access to Watana Camp;
2. least expensive construction to serve the Otter aircraft;
3. Minimal drainage problerr.s with the first stage of con-
stuction;
4. Minimal interference with potential material source for the
dam.
E. RECOMMENDATIONS
The preferred location of a runway to provide for Twin Otter
service to Watana Camp is fairly clearcut. It is recommended that
a 2500 foot runway be const,..ucted using a portion of alternate A
as shown on Exhibit 2, 3, and 4. This initial runway should be
constructed at the highest elevation consist$ht with balanced earth
work in order to keep construction costs for this temporary facility
to a minimum. The finished runway and safety area should be
graded to drain to e><isting natural drainages. in addition, care
should be taken so as not to create any areas that will trap snow.
Organic soils should be removed from the runway prism as depths
to sound m2terial are minimal. Consideration should be given to
providing a crushed aggregate surface on the runway itself.
There will be occas~ions when aircraft may choose to use the
facility during marginal weather condition.5. For this reason lhe
use of retro-reflective runway markers is recommended. These
devises are on alternative to low intensity runway lights that do
not require power.
susi4/a -7··
F. QUANTITY ESTII\IlATES-WATANA A!RSTRIP
Item I.
;; 18:519 c.y.
U _::oa . 2 for contingency -use ~JQ.Q c. y.
Item Z.
~ 88,888 c.y. use 90,000 c.y.
Item 3.
Safety Area = 271778 s.y.
= 13,333 s.y.
Area
Item
] (1.05) = 7136 cy say 7200 c.y.
:!:
susi4/a -8-
G. ESTIMATE
i 00
721000
i...S.
Total
2100
--r--·---~-----
0-t-00 IDtOO 2.0t00 40-tCO
I
t
I
I
Sl
Sl
Sl
Sl
Sl
~J\rERif,L
SILT
Ice, U-4 5', \'r
ac :! 5'
4. 5'
Ice, 4.5'-6'
l'
TRACE ORGA.:.'ac rt~TERT AL, . :, • -6
· ~tle Visible Ice, 6'-20
3ANDY SILTY GfAVEL
Gray-Brown
A~~er Refusal ~t 20'
\~ATER TABLE NOT
Ccbbl1~s 0·· s'
GRA',TLLY Si:..ND
SILTY SiUWY GRAVEL
Gray
. 5'
------·-------29•
0. H.
0. -o.s•l-1.
GRAVEL
~3 _____ ,,_--l. 5'
SILTY SANDY G~~VEL
aro1"n
ScdttF>.rea Cobbles, 1] S'-30.5'
Ice as layers
and Coa tin'JS, '-· 20, Vc+Vs
Ice, 20'-2 3' ,
Lens:::s f
ible Ice,
. 5', N
Refusal
HC HATS!-:IAL
BOULDER
SANDY SILTY GRAVE::..
Gray
D c• -· .. ...)
l. 5'
Scattered Cobbles, 8'-15'
SUSITNA JOINT VENTURE
No
Fe<alure
Co,ordma!.es: N -----------------
Angle (from Hori<~:mtal) _ _d:.!:::'.:._ _____ _
Eleering
Date Started ___ .L.,e. .•• 'fr'~L...;e:..:::~------
Da!e Completed .-...L...~~~""""-··--------G·ound-Water Elevation
r
SUSITNA JOINT VENTURE
Boring N~
F'eature Bearing _ ·----·-·----.---.----
Coordinates: N --------------Date Star~ed -------1-,,?-liL/c_l.i.::=f _______ _
Date Completed __ ..L,F-'ii!:....4'--"'""-''--------
!3/lowN
C n'10J.Jr)
r
l3£ouJt-t,s#
Sheet
D a 1 e --'-·-.L--""-,.t-1..~'--
Ground Elevation ---·--"'•-"'~-"CL--"----'-=---
Rock Eleve·
Total Depth
Ground-Water Elevation ___________ _
SUSITNA JOINT VENTURE
Angle (!rom Hc•rizonlal:f -~-~Z!:,-!_ ____ _ Ground Elevation ---------------------
Bearing Rock Eleva lion -----,------· ____ _
Date Started ___ ..:._f.::.,.~:-L.f-~.t.~----------~ Total Depth
Completed
Sheet
Dale ____ ,c.,:-'-"-·'--"'---"--
SUSITNA JOINT VENTURE
Ground Elevation
Rock
Ground-Water Elevation_
SUSIT:'IIA JOINT VENTURE
Angle (from Horizontai) _ __2Q ______ Ground Elevation-----------
Feature Bearing
Coordinates: N ---------------Date Siarted ---L-,.L.!:"'-rf--4::::=::--------
E Date Completed _--L,,:;...::""-""'-"":
Rock Elevation ----=-·----------
Total Depth
Ground-Water Elevation_-------
SUSITNA JOii ,. VENTURE
SUSITNA JOINT VIEt\ITURE
£I.Qrlng No
FE1ature
Coo,dinates: N
Angle (from Horizonta 1 ____ ___L__=------Grounr' O::iavation __
Bec..-ing Rc";K Elevation ---·--_______ _
Date Started _______ ...£..~~~_:.:._ _______ _ To ai Dept., ____ -•L--=-----------
Gre>t.'ld-Water Elevation _________ _
FI-CA2 3
l?/our..tJt:/2-5 !7T
S J 12P4e.,,r::
-
-
-
SI.:SJTNA JOINT VENTURE
Boring Angle (from nc.<~.LUII!ci,I __ ~L:::-.::__ ______ _
Bearing
Coordinates: N ______________ Date Started __ L..L~·'-T'c~----------------
Da,e Complett:d ----=..c;L:_.;:::,L.Jl~:.. ___ _
Sheet
Dale _...f___J__;.~L....J.L..>L __
Ground Elevation --------------
Rock El'?vation ---------------
Tota: Oepf'l ________________ _
Ground-Water Elevation _________ _
Angle ifrom Ho,ri:c,onlai) __ ~J.~-----
Bea•ing
Started -~-~~-;,::;..Jt_,;>!_::::::: _______ ~
Boring (from Horizontall----~----· Ground Elevation·------------
Bearing
SUSITNA JOINT VENTURE
Total
Ground-Water Elevation ___ z_c; ____ _
Ground Elevation--··-------· __
Elevation----------------
____L£_0.-~-.
Ur<DW1d·W<IIer El<>valior _ 7 o
SUSITNA JOINT VEt·;T'JRE
Angle (from Pic•rizon:talj:_. ____ :;~~---·---
Beedng
Date Starteo .... -~-L""-'--+L-f::-'==c-----·-··-···--
Date Completed --!.+..L.-'~--""'--------·-
Sheet
Date _ .. L-L../-•'-"-''-"-·--
Ground Elevat•on -·-------·----------
Rock Elevation --------··-····--·--···----
Tolal Depth
Ground-Water Elevation-·· -----··-·---
Grou,~d Elevation ----------~----
Roc~ E'eval;on ------------________ _
Tct:"l Oilpth
Date Completed Gro•.J~ld-Water Elevat1011 ------------
Ground ~"leva!lon ---·-----------
Rock Elevation --·-----------------------
Tolal Depth ____ .L'f! _ _Q ______ _
Ground-Water El,!'latwn -------------·-
Angle (!rom Hclrizontal:i ___ _L~--------·-
Bearing
Da I e Started ________ _:._ .L-r..L.L..;,: .:::o:_. ---·-·---
Date Completed ·--...:::,t:=rL.J-"'-'5.'"",~-
G;our.d Elevation---------·--
Rock Elevation ---------·~--------
Total Depth
Ground-Water ElevatiOn ___ .? 0 ____ _
Sheet
Date _L,f.~__J_..L;;~"--
Bonng Angie (lrom Hc,rizontai;I _ _;;:__Q _____________ _ Ground El!:.vation
Beanng Rock Elevation ----------,-~-----·-__ _
Date Started _____ ..:::z.=,t----h-..L.·¥--=:::. __ _ Total Depth
Date Completed Ground-Water E1evation ___________ _
Ground Elevat'on ·-··---·~·---~-----
Rock
To!ai
Ground-Water Eieva;tion --·---------
SUS!TNA JOINT VENTURE
SUS/INA ~'CJINT l/E' ' 1E
SUSiTNA JOINT VENTURE
Sneer
Date _.::=:z:_,~~~""-
!CUSITNA JOINT VENTURE
Date Completed
Soli Description
SUSITNA JOINT VENTURE
8oring
Coordinates: N ·-·---------------·--Data Started
Ground Elevat1on __ -·---·-----
Rock Elevation -·------·---····--~~ -·--·--·---·
,i Deptn ·---·-·---'-~ --=:.... -··-----·-·--
und·Water Elevation __ . _________ _
Sheet
Oate --'--+~.,.c.,lf'-"""'"''"-
SUSITNA JOiNT VENTURE
Ground Elevation -----------·--
Ruck Elevat1on ________ ,.-----·-·--·-
Totai Depth
Ground·Water Eleva lion _______ _
JOINT VENTURE
o!
Shea!
Dale . ~L...<'-.1<--"-'"""-.::.,_
of
Date
Date Co1mp:le!E!d _:c..Lc.,:_.~~•="'--~----~------
Bonng
Fea1ure
Coord1na1es N ------~----------~
Ground Elevation ~----· --·--·----·--
.lock Elavalion . ····-·-····~--····-----·--·· __ _
Total Deptr-,
Ground-Water Elevatl<ln ------------__
SUSITNA JOINT VENTURf
Angle
Be>ar1ng
Dale
SUSJTNA JOINT VENTUC!E
Feature B~ar;ng
Date CompletPd
Ar oe !YeA.e
5
SUSITNA JOINT VENTURE
Bormg No
Feature
Angle (from t·'or:z·:;nta:)
Bet.rmg
Soil Descripiion
Date
(i= -c.)
I
I
Si.JSiTNA J'OINT VENTURE
Ground Elevat10n
Rock. E!evat;or
Dale Completeo
Soil D€-script10n
1/ c)
il
SUSITNA J(l/NT VENTURE
Ang:e (from Hoflzontali
8ear1ng
Description
Si_.,SITNA ,IQINT VENT/HiE
Angie (from hor:zont?i' Ground
Beanng Rock EIG'I3!10n
Dale Completed Ground \/Vater
Description
-c)
SUSITNA JOINT VENTURE
Bear1r.g
D:~te Cornpietea
Soli Description
/.<.. T'7
Grouru E;evat,or, __
Rock E:eva!1on
Date
SUSITNA .,Q/NT VENTURE
Bonng Ang:a (~rom Hor:zonta:
Beartng
Soil Description
r
G10und Elevat1on _
Rock Elevattor _ ---------------------------Z§ ___________ _
Ground-Water Elevat1on __ _
L
Angle (from Hc•rizon!al'i ____ _z.~----·----
Bearing
Date Started ____ ..::_L::.;t._'-<:.t-.;,"-'""'---
Dale CoMpleted _ _::::_,!.;L~Je~-----
Grourd Elevation------·------
Rock Eleva~>on --------------------
Total Depth
Ground-Water Elevation _________ _
Angle (from Hc,rizon!al'~-----t..::::~----······-
Bea • .ng
Date Started _
Dale Completed
Ground
Rock Elevation -----------~-------
Total Def)th
Ground-Water Elevation_-----------
Angle (trom Horizl::mta:) __ 2~::_ ______ _
Bearing
Date Starled
Grou'ld E~evation ------------
Rock Elevation -------·-----·---·--
Total Depth
Grouncl-'Nater Elevation-----------
!'iAN CANP BORING
LOGS
SUS!..,.NA JOINT VENTURE
No
Featuro
Coordmates. N --·----·--------
Anyle (from Hc•rizonlai:~---_:;~·----·---
Bc.arirog
Date Started ___ J.:...Liis~LL..:¥-:.::o..-------·-
Date Complsted --..C.~·i!..L.o.....:z._. ____ _
fi'AMAI u= -c}
:C2·'t
Ground Elevatlcm --------·-------·-
Rock Elevation
Total Depth
Ground-Water Elevation. ________ _
/?Cli./A. 06".4,/JS /i-T
S'(rJ.;:;,~ACE
SUSITNA JOINT VENTURE
Angle (from '"lo·rizon·tal]l ___ ::.tJL __________ _
Bearing
Coordinates: N ----------__ Date Started ___ .....:...C-.L-Y:..L.>~"""-------
D"lte Completed _____ .!:.L....Ct.<'.a:,.;;;z. _________ .
Ground Elevation _
Ro...,,.; Elevali::>n
Totai Depth
Ground-Water E!€Nalion __________ _
Angle (I rom Hc•rizontal:! _ _::;~~---------
Bearing
Date Started -----L-1---~""-'71"4::--------
Date Completed _______ _u:...o,::<!::..£;~'---
Ground E!ev::llion -------------
Rock Elevation-·.,--;--:::---------
Total Depn,
Ground-Water Elevation ___ --------
SUSITNA JOINT VENTURE
Date Stanec __ :.L.LJ. ... ~Lk"'"'-L~----
Date Compieted --·-'c,.t:.-'-"-"-~~-·---
r
Ground Elev<
Rock Elevation ---------·-------
Totai Depth
Grouno-Wat~~r Elevation--------
IL R~
SUS!TNA ,/CHNT •!ENTURE
SUSITNA JOINT v'ENTUR€
Feature
Coordinate:>: N
Angle (lrom Hor;z.onliai), ___ _L~----··-----
Bearing
Dale St.ar!ed ____ :_,:::.,.c ___ ~,4r'-=-'~--,:------
Date Completed ___ ..L..L..=:L'-~::::_..,.:::. ______ _
Ground Elevation ____________ _
Rock Elevation ------------
Total Depth
Ground-Water Elewa!ion
____ ol ___ _
SUSITNA JOINT VENTURE
Angle tfr0m Hc•rizon·tal)i __ ~:::_ ________ _
Bearing
Comdinal_;s: N ----------·------· Date S~arteJ __
D<..!"l Completed _
Ground
Rock E!ev<,tion ·-·---·----------------
Total Depth
G~ound-1/\laler Elevation __________ ._
Retained
fN
11----------------------------·---·--------·----·---------------·------··---
Class ·i fica ti on
1-z
:..w
f-z
0 u
ASSOCIATES
\~A TAM DAM
Tare \·Jei ght 50 .,
Total Sample HT
Spe~ci fi c
Gravity (G)
WORK SHEEL.-PARTICLE SIZE ANALYSIS
OGILSON t:AoRASS _SIEVE OHYDROMETER
Jar #
Weight
Retained
Ho l e fl s '). 1
TOTAL SAMPLE
Retained
Cc
HARil!NG LAWSON ~ rr>:nrH ~iTr.-.
ENGINEERS. GHitOSISTS & GECPIHSICISTS
Job
No . ..12.fl 32,00 3. 08 . j WORK SHEET-PARTICLE SIZE ANALYSIS
Date LJ / o; }83 OGILSON [JBRASS SIEVE OHYOROMETER
Project WATANA DAH Hole AS J. 3
~"' ry /JT Tota 1 TOTAL SAMPLE Sample & Tare Jt..lt.G,o ~o-_.;.------4-!..-!........;;;..;..;;....t-----------------__ , ______ --'~
Tare I·Jei ght I
Total Sample HT
Moisture Content
-10 r~aterial
gram£ Jar· #
Cum. ~n
Ret.
l~ei ght
Retained
HYDROMETER SAMPLE
LL ----PI
Corrected Weight of
Sample
Temp.
o C. K
cohol
Agent
% of Total
Passino
ENG!flHJIS, GEOlOGISTS & GEO!'i!YSIC!STS
U. S. Standard Sieve NUmbers Hydrometer
1100
90
80
--L 70
60 ...
.&:
~
Ill :m
50 1:1
!;
40 ~ -..
"' lllO
~
30 of
20
HARDING ASSOCIAUS
U. s. Stan~:hrd Sieve Openings In Inches U. s. StandArd Sieve !!limbers
1
12 9 6 l 2 11/2 ' 3L4 l/2 3/B 4 10 20 00 . . 1=F-.,~ I'
90 --~r-...
~p....
8 " !)
7 --
-
'
5
4 I -
-
30
20
0 so 10
Hydrom11:ter
40 60 so 100140 200 270 . .
I
~.
I'~
~..:r,
['...
~ --'&
I
I o.os
100
90
80
70
m
I
60 ~ ::;:
1!11 .,.
50 A'
I.
""
40 ~ .... =
I
~
30 .f
20
10
HARDING LAWSON ASSOC!A US
U!Sifim!S, liEill.ll!iiSiS & llEi!PIIi'Si&ISlS
)
I
Classification
Standard Sieve Openings In !nc:hes U. s. Standard Slew: tliAml:lers Hydrometer
ASSOCI!\ US
WORK SHEE!;, PARTICLE SIZE ANALYSIS
OGILSON c:.~BRASS SIEVE OHYDROMETER
WATANA 8At1
\·JT Representative
Sample
Dia. HM
a =
Jar #
Weight
Retained
Hole A-S ~~ '
TOTAL S.AMPLE
Retained
Depth)-
P,myl Alcoho1
Drops: _
Passin
Agent
% of Tota1
Passing
HARDING LAWSON
E!IGIRHRS, GEOlOGISTS & GHIPHTSiCISTS
U, S. Sttmclud Sfeve Opentngs In U. S. Standard S1eve NUmbers
Tare
Total
Height
Retained RE~tai
ASSOCIATES
i .
l )
IJ. s. Standard Sleve Openings In Inches IJ. S. Standud Sieve Wi:mbers Hydrometer
12 g ~I 3 2 11/2 ' 3/ll 1/2 318 o:mf{ . . I
go I
I 80 [ 1---r-·
70
I
60
~
0
-·
40 -·-
......... ____ -f---
--,---·
--··-
r-· r-
100 50 \0
L I GRJ\l/El
I Coarse J Fln~
4 l 20 40 60 so 100140 20~ :o -10
1 r r--...~ 1 .
0
L I I
I ~~m[ I
"l !'\._. -I ~
"' l ---
--
-
-
--
I I -I
l I
s
Grain She L l IP,et!;;
0.1
I ~AN!l_ I I Coarse ! Hedtum Fhn~ I
--1---90
80
I
l ·--70
I
lc
i jV
i
-
I !SO
' ·~
~~ -· 40
1-t+-T: 30
I
0.05
11 20 ·-1-----
II ~~10
JJ.
0.01 0.005 IJ.O ll
FmE.s
~ I~ _.!:.!!.!~.
J
~hy Shes!
HARI.mm lAWSON ~SSOCIATES
EWSIIiWlS. liEOLOGISTS !! 6f.lli'II1Sl!:ISJS
T•«i~sf .. .-ed +vw: tl'fD· tl.,-4" +o '>•ev~ s~_,"-1 "'""' i""-u .v"'1
Z fiJr"'
c
~-~t,_,_,,_,_ft<*w-J,-~,-"""'""_-lb. __ , __ ,_, __ .~. ___ , _____ , ___ , ___ ~,~-·--~~------~-i No . _li') 3Z. 00 :LJ!Jl ----------
----------~----------·---! Da t e __ g_::_.L\____:_j_l_ _______ _
1.1. s.
80
70
60 ~
.;':'
~· :lll
..
"' IS ... ..
~
~ <!> "'·
•; ' =====t:====t:====:t==:.:c===! e\.,_:
Hydrooeter
Temp.
0 C. K
#
Weignt
Retained
HAP.Oifut ASSOCIA!ES
Elt!:ll!tl::!lS, GHIU!~!SU IH1filli'll'i!!il:15>1~
( ,e·rJ
Weight
Reta
%
Retained
in !J. S. Standard Sieve fiumb::!rs
1/?. 3/8
'>' .1:.
"' ';
:ll:!
~
I ...
--!
·~
"' ~
tf.
><
L c: z
>-;-
u
;---
1/
<
':
70..-----
Notes !. Adrlitionai Tests
SOli.
lABORATORY COMPACTION TEST
698
M.AXIMUM CRY
OPTIMUM MOISTURE
Cheek Point
WCPk Soturotion =
{
\
90% Saturation =
of wet soi 1 in ond
volume= 1/30 eu.
6
.0662
ASSOCIATES
~:~tnt,ut~l»t;) & GEDPIUSICISTS
LAoORATORY COMF-ACTION
\0 20 30
l\..\OlSnJRE CONTENT %
SOIL ')Oto "A
OASTM 698
0 Other
N\AXIMUM DRY
OPTIMUM MOISTURE
..&. ~ield Check Point
90th Saturation (G5 =
(*For weight of wet soil In grams and
volume = 1/30 cu. ft}
.0662
HARDING lAWSON ASSOCIATES
EliGI&EEfiS. G£0UlGISTS ll GE!IPHYSICJS•s
cl.
ii::::l:::::::::t:~~::::t:::::::::!:::::::::!:::::::::1:::::::t:::::~f-~·l
~~gent
% of Total
Passino
b fN
i.JI J
__ /