GEOTECHNICAL - dot.alaska.govdot.alaska.gov/nreg/projects/Z631790000/1990_kiana_geotech.pdf · GENERAL RECOMMENDATIONS 1, should be kept lower than the runway to prevent snow drifting

PREPARED BY:

GEOTECHNICAL REPORT KIANA AIRPORT RECONSTRUCTION

PROJECT NO. A I P 03-02-0146-01/64762 NORTHERN REGION

JUNE 1990

Engineer ing Geolog is t

EDITED B Y :

S r . Engineering Geolog is t

REVIEWED BY:

MONTE. K. WEAVER, P.E. Chief o f Geotechnical Services

APPROVED BY:

PAUL W . MIS’IEREK, P.E. Engineering Services

C O N T E N T S

PAGE

INTRODUCTION. ........................................................ 2

LOCATION ............................................................. 2

GEOLOGY AND TOPOGRAPHY.. ............................................. 2

CLIMATOLOGY.. ........................................................ 3

GENERAL MATERIAL S I T E INFORMATION.. .................................. 3

GENERAL RECOMMENDATIONS. ............................................. 4

STATION TO STATION RECOMMENDATIONS RUNWAY ............................ 5

APRON RECOMMENDATIONS. ............................................... I S O I L S TESTING REPORT, CENTERLINE.. ................................... 10

PLAN AND PROFILE ..................................................... 12

S O I L S TESTING REPORT, APRON .......................................... 15

LAYOUT PLAN, APRON.. .................................................. 20

BORROW S I T E 1. ....................................................... 21

S O I L S TESTING REPORT, BORROW ......................................... 2 2

BORROW S I T E 2 ......................................................... 2 4

S O I L S TESTING REPORT, BORROW.. ....................................... 26

BORROW S I T E 3 . . . . . . . . . . . ............................................. 28

S O I L S TESTING REPORT, BORROW.. ....................................... 29

BORROW S I T E 4 . . ...................................................... 31

S O I L S TESTING REPORT., ................................................ 3 2

REFERENCES.. .......................................................... 34

"

I L L U S T R A T I O N S

PAGE

FIGURE 1 . LOCATION MAP ................................................. 1

FIGURE 2 . UNIFIED SOILS CLASSIFICATION SYSTEM .......................... 8

FIGURE 3 . LOG EXPLANATION .............................................. 9

FIGURE 4 . VICINITY MAP, BORROW SITE 1 .................................. 23



FIGURE 7 . VICINITY MAP . BORROW SITE 4 ................................... 33

.

LOCATION MAP NO SCALE

V I C I N I T Y MA?

I I

. -L-

a03 BAKER ME,MORIAL AIRPORT KIAP!A, ALASKA

I ,.> ,' , F I G U R E 1 I

STATE CF ALASKA OE?ARTIENT OF TRANSPD2T.4 TiOh '

AND PU6L IC FQCIL I T i E S ENGINEERING GEOLOGY U N I T

pa K I A N A A IRPORT CAT LOCATION SKETCi

/ /'

/ i /

/~ /'

/ HRL PROJECT NO.: 64762 \ 'APPROVED:

i~ C i i E :

GEOTECHNICAL REPORT KIANA AIRPORT RECONSTRUCTION

NORTHERN REGION

INTRODUCTION

The Alaska Department o f Transpor ta t ion and Pub l ic F a c i l i t i e s (DOT&PF) proposes several improvements t o the Kiana A i r p o r t . These i nc lude lengthening and widening t h e main runway, a 2500 f o o t long by 4 f o o t deep c u t along c e n t e r l i n e t o improve the s i g h t distance, the cons t ruc t i on o f a new taxiway and apron w i t h a connect ing access road, and t h e upgrading o f t h e e x i s t i n g a i r p o r t 1 i g h t i n g system.

PROJECT NO. A I P 03-02-0146-01/64762

A t the request o f C ind ie L i t t l e , P ro jec t Manager, engineer ing geology personnel i n v e s t i g a t e d t h e s o i l p r o f i l e , t h e general phys ica l p rope r t i es o f t h e s o i l s , and l oca ted poss ib le sources o f borrow mate r ia l . This r e p o r t descr ibes t h e i n fo rma t ion obta ined i n t h e f i e l d and l abo ra to ry and makes geotechnical recommendations f o r use i n t h e design and cons t ruc t i on o f t h e p r o j e c t .

The f i e l d work was done from September 27 t o October 2 , 1989 under t h e superv is ion o f P. Ondra, Engineering Geologist , who located, logged, and sampled t h e t e s t holes. A track-mounted Mobi le 8-24 d r i l l was used t o d r i l l a t o t a l o f 45 t e s t holes i n the v i c i n i t y o f the proposed improvements and i n t h e i n v e s t i g a t i o n o f 2 nearby s i l t , sand and g r a v e l l y sand borrow s i t e s . The d r i l l was equipped w i t h 4- inch diameter, con t i nuous- f l i gh t , so l i d - s tem auger and was operated by T. Johnson, D r i l l e r , and J. Nelson, D r i l l e r ' s Helper. Samples were taken d i r e c t l y from the auger f l i g h t and v i s u a l l y descr ibed by t h e engineer ing geo log i s t i n the f i e l d . A grab sample was obta ined about 3 m i l e s downstream from near Okok Po in t as a poss ib le source o f a l l u v i a l g rave l . A second sample o f a l l u v i a l gravel was taken from t h e t e r r a c e depos i t about 4 mi les upstream on the east s ide o f the Squ i r re l River . A t o t a l o f 46 samples were t ranspor ted t o the Northern Region Ma te r ia l s Laboratory f o r ana lys is and t e s t i n g . inc luded i n t h i s repo r t . i n t h e publ ished by t h e Engineering Geology Sect ion o f the Sta te o f Alaska, DOT/PF, Centra l Region, Anchorage, Alaska.

LOCAT I ON

Kiana i s l oca ted approximately 60 a i r - m i l e s eas t o f Kotzebue a t t h e conf luence o f t h e Kobuk and Squ i r re l Rivers. The v i l l a g e and a i r p o r t a re on a b l u f f about 80 f e e t h igh on the n o r t h bank o f the Kobuk River .

GEOLOGY AND TOPOGRAPHY

The p r o j e c t i s l oca ted i n t h e Kobuk-Selawik Lowland sec t i on o f t h e Western Alaska physiographic province. This area i s a f l a t , poo r l y dra ined expanse o f meandering r i v e r s , numerous lakes, and swampy t e r r a i n . The lowland i s

Logs o f t h e t e s t holes and r e s u l t s o f the l abo ra to ry t e s t i n g are Add i t iona l in fo rmat ion f o r t h i s p r o j e c t can be found

M a t e r i a l s I n v e s t l a a t i g n repo r t , Tom O t t l e y , October 1979,

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bordered by the' Ba i rd Mountains t o the nor th, which reach an e l e v a t i o n o f 4700 f ee t , and by t h e Waring Mountains t o the south, which reach an e l e v a t i o n o f 2000 fee t .

The v i l l a g e o f Kiana l i e s c lose t o the nor th-western edge o f a l a r g e s t r u c t u r a l depression t h a t i s c a l l e d t h e Kobuk-Koyukuk Basin. conta ins r e l a t i v e l y recent beds o f vo lcan ic and sedimentary rocks, and var ious thicknesses o f Quaternary f i l l , such as g l a c i a l t i l l and a l luv ium. The t i l l cons i s t s o f sand and s i l t m ix tu res w i t h cobbles and boulders.

The topography i n t h e immediate v i c i n i t y o f Kiana cons is ts o f low, swampy stream v a l l e y s and r o l l i n g h i l l s . two mountain ranges; Mountains t o t h e south. (Permafrost). Deep seasonal f r o s t i s a l s o common. The e n t i r e area i s under la in by p e r e n n i a l l y f rozen ground.

CLIMATOLOGY

Kiana i s l oca ted i n t h e t r a n s i t i o n a l c l i m a t i c zone which i s charac ter ized by long c o l d w in te rs and cool summers. and -54*F i n w i n t e r have been recorded. . P r e v a i l i n g winds are e a s t e r l y i n w i n t e r and wes te r l y i n summer. A t l a s o f Alaskq and a r e considered app l icab le t o t h e p r o j e c t area:

Mean Annual P r e c i p i t a t i o n . . ..................... 16 Mean Annual Snowfal l , inches.. ................. 55 Mean Annual Temperature, degrees F ............. Thawing Index, degree days ..................... Freezing Index, degree days .................... Design Freezing Index (1 year i n IO), degree days

Th is bas in

The r i v e r meander b e l t i s contained w i t h i n the Ba i rd Mountains t o t h e n o r t h and t h e Waring

Temperature extremes o f 87pF i n summer

The f o l l o w i n g data are from t h e Environmental

22.5 1750 6000 6900

GENERAL MATERIAL SITE INFORMATION

A f i e l d i n v e s t i g a t i o n o f p o t e n t i a l ma te r i a l s sources f o r t h i s p r o j e c t was conducted a f t e r t h e a i r p o r t i nves t i ga t i on . The same personnel and equipment were used t o i n v e s t i g a t e Borrow S i t e s I and 2 loca ted near the present a i r p o r t . Borrow S i t e s 1 and 2 are poss ib le sources o f embankment ma te r ia l con ta in ing s i l t , f i n e sand, and t races of g rave l . t o use t h i s m a t e r i a l .

Borrow S i t e s 3 and 4 are poss ib le ma te r ia l sources l oca ted away from t h e v i l l a g e o f Kiana and con ta in a l l u v i a l sand and grave l . may be s u i t a b l e f o r Aggregate Surface Course. t h e pas t as a source o f Aggregate Surface Course. t o produce t h e requ i red aggregates. See t e s t ho le l ogs and l abo ra to ry t e s t r e s u l t s .

Processing may be necessary

Samples i n d i c a t e they Borrow s i t e 3 has been used i n

Processing may be necessary

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GENERAL RECOMMENDATIONS

1, should be kept lower than t h e runway t o prevent snow d r i f t i n g problems.

2 . A l l f rozen ma te r ia l should be thawed and d r i e d t o near t h e optimum moisture p r i o r t o use.

3 . i n t h e Borrow area t o i n - p lace i n the embankment.

4. g ranu lar su r fac ing ma te r ia l t o prevent contaminat ion o f t h e granu lar borrow mate r ia l w i t h s i l t .

5 . Construct embankment slopes no steeper than 3 h o r i z o n t a l t o 1 v e r t i c a l .

6. Provide f o r adequate drainage o f t h e embankment and grade t h e d i t ches t o prevent water from ponding a t t h e t o e o f the embankment. D i tches constructed i n e r o d i b l e s o i l s , w i t h a g rad ien t steeper than 2 percent, w i l l r e q u i r e d i t c h eros ion p r o t e c t i o n . A minimum 8 inch th ickness o f sand and gravel f o r d i t c h p r o t e c t i o n i s recommended. w i l l r e t a r d eros ion.

Waste excavat ion should be placed along the n o r t h s ide o f the runway, but

Expect a s h r i n k f a c t o r o f 25 percent i n volume of t h e s i l t f rom i n - p l a c e

Place a g e o t e x t i l e f i l t e r f a b r i c between t h e s i l t embankment s o i l s and

Seeding o f a l l exposed slopes i n s i l t o r f i n e sand

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STATION TO STATION DE SCRIPTION S AND RECOMMENDATIONS

luNb!Kl

s T Y 0

DESCRIPTION

This sec t i on s t a r t s on t h e o l d c leared zone a t the west end o f t h e e x i s t i n g runway and extends t o S t a t i o n 34tOO on the proposed runway. The t e r r a i n i s a west and south s lop ing h i l l s i d e t h a t was c leared adjacent t o t h e ruiiway i n the past b u t now supports grasses and w i l l o w brush t o 6 f e e t t a l l . A t r a i l runs through t h i s area a t the west end o f t h e runway t o a borrow source ‘ar ther west. Drainage i s poor, w i t h water ponding i n t h e d i t ches on both i i des o f t h e runway embankment.

The runway and s a f e t y area embankments are composed o f about 2 f e e t o f s i l t y g r a v e l l y sand over a sandy s i l t foundat ion. A water t a b l e was founli 4 f e e t below t h e ground sur face beyond t h e west end o f t h e runway embankmeiit. No f r e e water was found below t h e embankment bu t f rozen ground was not3d s t a r t i n g a t depths of 7 f e e t and extending t o a t l e a s t t h e depths explored. The waste berms on both sides o f the runway cons i s t o f 2 t o 2.5 f e e t o f peat i v e r a sandy s i l t . The ma te r ia l i s f rozen s t a r t i n g a t depths o f 2.5 t o 3 fee t below t h e sur face o f the berm and was found t o be f rozen a t l e a s t t o t h e ,depths explored. These berms b lock sur face drainage.

RECOMMENDATIONS

1. Clear a l l sur face vegeta t ion from the area o f t h e new embankment, and f l a t t e n o r remove t h e berms on both sides o f the e x i s t i n g runway. measures w i l l reduce snow accumulation and improve drainage.

2. Remove and s t o c k p i l e t h e granu lar su r fac ing ma te r ia l from t h e e x i s t i n g embankment. Granular ma te r i a l i s scarce and should be conserved.

3. Construct t h e new embankment w i t h Borrow Embankment m a t e r i a l . Place a separat ion g e o t e x t i l e over t h e embankment before ove r lay ing i t . Overlay t h e new embankment w i t h 12 inches o f t h e e x i s t i n g granu lar su r fac ing ma te r ia l and a t l e a s t 6 inches o f Aggregate Surface Course.

STATION 34tOO TO STATION 60+00

DESCRIPTION

This sec t i on cons i s t s o f the main runway through a proposed c u t sect ion. The runway i s l oca ted on a slope t h a t descends towards t h e Squ i r re l R i ve r t o t h e east (ahead). A taxiway t o t h e e x i s t i n g apron leaves t h e south s ide o f t h e runway a t S t a t i o n 41t10.

The runway embankment i s genera l l y composed o f 1.5 t o 2.0 f e e t o f a s i l t y g r a v e l l y sand over a sandy s i l t t h a t i s between 3 and 4 f e e t t h i c k . Because the under ly ing foundat ion ma te r ia l i s a lso a sandy s i l t , i t i s d i f f i c u l t i n many l o c a t i o n s t o d i f f e r e n t i a t e between t h e bottom o f the embankment and t h e t o p o f t h e foundat ion.

These

Frozen ground was found s t a r t i n g a t depths o f 6 t o 7.5

- 5 -

f e e t below t h e sur face and extends a t l e a s t t o t h e depths explored. A water t a b l e was found i n two t e s t holes a t depths o f 5 and 6 f e e t below the ground s u r f ace.

RECOMMENDAT I OMS

1. proposed cu t .

2. embankment.

3 . ' Cut down t o t h e proposed grade. The sandy s i l t ma te r i a l produced by t h e c u t i s s u i t a b l e f o r use as Embankment ma te r ia l , however f rozen ma te r ia l may have t o be thawed and dra ined t o below optimum moisture t o a l l ow i t t o be used.

4. Place a separat ion g e o t e x t i l e before cons t ruc t i ng t h e raw embankment.

5. Construct t h e new embankment w i t h a minimum o f 12 inches o f t h e e x i s t i n g granu lar su r fac ing ma te r ia l and top w i t h a t l e a s t 6 inches o f Aggregate Surface Course.

6. F l a t t e n the c u t slopes t o a t l e a s t 9: l t o prevent snow d r i f t i n g .

7. Assure p o s i t i v e l o n g i t u d i n a l drainage by cons t ruc t i ng t h e d i t ches on each s ide o f the runway a t l e a s t 3 f e e t deep.

otoo TO STATION 67tOO (E.O.P.1

Clear and s t r i p a l l surface organics and berms from t h e area o f the

Remove and save the granu lar sur fac ing mater ia l from the e x i s t i n g

DESCRIPTION

This sec t i on i s t h e east end o f the main runway where a t o t a l ove r lay i s proposed. The t e r r a i n i s s t i l l eastward-sloping.

The runway embankment i s genera l l y composed o f 1.5 t o 2.0 f e e t o f a s i l t y g r a v e l l y sand over a sandy s i l t foundat ion. Frozen ground was genera l l y found s t a r t i n g a t a depth o f about 7 f e e t below the sur face and extended a t l e a s t t o the depths explored.

RECOMMENDATIONS

1 . Clear t h e sur face vegeta t ion from t h e area o f t h e new embankment.

2. Remove t h e berms on both sides o f the runway t o improve drainage and reduce snow d r i f t i n g .

3 . Remove and save t h e granu lar sur fac ing ma te r ia l from t h e e x i s t i n g embankment.

4. Place a separat ion g e o t e x t i l e before beginning embankment cons t ruc t ion .

5. Construct t h e new embankment w i t h Borrow Embankment m a t e r i a l . new embankment w i t h 12 inches o f the e x i s t i n g granu lar su r fac ing ma te r ia l and

Overlay the

-6-

t o p w i t h a t l e a s t 6 inches o f Aggregate Surface Course.

mat! DESCRIPTION

The e x i s t i n g 250 f o o t by 400 f o o t apron l i e s t o the south o f the main runway a t S t a t i o n 41t10. An e x i s t i n g taxiway connects t h e apron t o the runway. Proposed new l o c a t i o n areas inc lude the undisturbed t e r r a i n west o f the e x i s t i n g apron and undisturbed t e r r a i n n o r t h o f t h e west end o f t h e runway.

The e x i s t i n g apron embankment i s genera l l y composed o f a 2 i nch t o 4 i nch l a y e r o f s i l t y g r a v e l l y sand over a 6 t o 7 f o o t t h i c k embankment o f s i l t y sand/sandy s i l t . sandy s i l t s . the sur face o f t h e embankment.

The proposed apron extension area t o t h e west o f t h e e x i s t i n g apron l i e s on southwest s lop ing t e r r a i n . Th is area i s hummocky and poo r l y d ra ined w i t h numerous areas o f s tanding water. Vegetat ion commonly cons i s t s o f grass tussocks, and spruce t rees t o 6 inches i n diameter spaced 2 t o 20 f e e t apar t on an organic mat ranging from 0.5 t o 1.5 f e e t t h i c k . commonly c o n s i s t o f sandy s i l t . Frozen ground was found s t a r t i n g a t a depth o f 1.5 f e e t and extended t o the depths explored. 'genera l l y i c e - r i c h down t o depths o f 4 t o 6 f e e t below t h e surface.

The proposed apron area on t h e n o r t h s ide o f t h e runway i s a l so poor ly -dra ined hummocky t e r r a i n . Vegetat ion genera l l y cons is ts o f grass tussocks, and spruce t r e e s t o 3 inches i n diameter spaced 10 t o 20 f e e t apart , on an organic mat 1.5 t o 3.0 f e e t t h i c k . Foundation ma te r ia l s c o n s i s t o f t c e - r i c h sandy s i l t . Two t e s t holes penetrated i c e 5 f e e t t h i c k . Frozen ground was genera l l y found a t a depth o f 1 t o 2 f e e t and extended t o t h e depths explored.

RECOMMENDATIONS

Extend t h e e x i s t i n g apron t o t h e west.

1. Hand c l e a r brush and t r e e s from t h e extension area bu t leave the organ ic mat i n t a c t . Brush and t rees smal ler than 4 inches i n diameter can be placed i n an even l a y e r below t h e embankment.

2. Construct t h e new embankment w i t h a minimum o f 36 inches o f Borrow Embankment ma te r ia l and over lay w i t h a t l e a s t 6 inches o f Aggregate Surface Course.

Foundation ma te r ia l s cons i s t o f i c e - r i c h organic s i l t s and Frozen ground was found s t a r t i n g a t depths o f 7 t o 8 f e e t below

,

Foundation ma te r ia l s

The foundat ion s o i l s were

-7-

Soil Classification

Gmup Namc? Group Symbol

CouvGraincd Soils Gravels C l a n Gravels C u r 4 a n d I ~ C c s 3 ~ GW Wcll-pdcd gravel'; Mom than SO % m u i d on No. More than SO % of coarse frar-

lion rcmncd on No. 4 YCVC

Lesrlhrn 5 96 G w C

Gravels with Fins F i n a classify as ML or MH GM Silw mvdFGn

GP Pcorly graded gravel? 200 SIevc Cu < 4 and/or I =- Cc > 3E

...-.- I.. .- I" .... I F i n a classify as CL or CH GC

Sands Clean Sands Cu r 6 and 1 5 CCI 3' sw WcU-gnded sand' 50 % or mom of warn fraction h s s than 5 % fins"

pazrcr No. 4 dcvc C ~ < 6 a o d / o r I > C c > 3 ~

Sands with Fina F i n a darrifv as ML or MH SM Silty sand'"'

SP Pwrly p d e d and '

. I - FincGiained Soils 2 71 sieve m

50 % or more pam the No. 200

I N 03

a

More than 12 % find' F i n a c l w as CL or CH sc Clayey and'"' i

Silts and Clays inorganic PI > 7 and plots on or abovc 'A" l i d CL h n c l a y Liquid limit ksr than 50

organic

PI C 4 or plots k l o w -A" l ing ML S i l t U '

Liquid limit - ovcn dried Lisuid limit - not dricd

Organic ciayLw" OL Omnicril?

0.75

Silts and Clays inorganic Liquid limit 50 or mom

PI plols on or above -A" line CH F a t c l a y

PI plots below 'A" line MH E l a n i c s i l ~

organic Organic c l a y ' Omnic r i 1 F . Q

OH Liquid limii.'- ovcn dried Liouid limit - not dried

< 0.75 I~~~~ ~ ~~

~~ ~~~~. ~~~~ ~~~~~

Hi& organic soils Primarily organic mattcr. dark in color. and organic odor PT Peat .. .

' If soil contains I5 to 29 % plus No. 200. add -with sand"

' llsoil contains r 30 % plus No. 200. prcdominantlysand.

"If soil conwins z 30 % plus No. 200. pdominantly

or -wilh gravcl." whichever is predominant.

add 'sandy" 10 group namc.

gnvcl . add -gravelly" to group namc.

A Bawd on the matcrial pasing the 3411. (75-mm) sicvc. ( D d Dm X Dlo ' If field sample mncained cobbles or bouldcrs, or both. ~ - c Cu = DdDio C C =

add 'with cobbla or bouldcrs. or both- to group name. Gravels with 5 to I2 % f i n a require dual symbols GW-GM wll-graded gnvel with silt GWGC well-graded g n v e l with clay GP-GM poorly graded gravel with silt SC-SM. . . " PI 2 4 and plots on or above -A- line. GP-GC poorly graded gravel with clay

SW-SM well-graded sand with sill SW-SC well-gradcd sand with clay SP-SM poorly graded sand with silt SP-SC poorly graded sand wilh clay

?If soil contains z I 5 % sand. add 'with sand" 10 group

If ha classify as CL-ML UY dual symbol GCGM. or

" If fines arc organic. add -with organic fines' 10 gmup

' IF soil conlains z I S % gravel. add -with gravcl" to group

'If Alterberg limits plot in hatched area. soil is a CL-ML

namc.

PI < 4 or plots bclow "A" line.

PI plols below 'A" line. *Sands with 5 to I2 % f ina rawire dual symbols: namc.

namc.

silty clay.

'PI plots on or above'A" line. '

UNIFIED SOIL CLASSIFICATION SYSTEM (BASED ON ASTM D-2487)

BASIC MATERIAL SYMBOLS ORGANICS (Org)

CLAY (C11

ANGULAR FRAGMENTS

COLLUVIUM (COll) 01

BEDROCK (ax). a o t t

BEDROCK (8x1. hard

*at MIXTURE OF ROCK FRAGMENTS I N SILT AN0 SANO MATRIX.

NOTE: SIQNIFICANT MIXTURES ARE SHOWN BY COMBINING SYMBOLS.

SIZE DEFINITIONS BOULDERS t10' coaaLEs 3' TO 10' GRAVEL 110 TO 3' (AOUNOED) AN5.FRAQS. +lO TO 3' (ANGULAR) S A M 1200 TO +fO SILT HINUS 1200 (P.I.10 OR LESS1 N A Y MINUS 1200 (P.I.>lO)

TEST RESULTS -1-200 - X PASSINQ $200 SIEVE N.M.2 - NATURAL MOISTURE O R O . 2 - ORQANIC CONTENT L.A., - COS ANOELES ABRASION OEO., - OEOAIDATION P.1.- - FLASTIC I N O U

UISC - T r . - TRACE (0-6%) 61. - SLI5HTLY l7-12W w/, - WITH UNSPECIFIED AHOUNl X' t ls - CRYSTALS

TYPICAL LOG YEAR LOGGED 88-69 NUMBER OATE LOGGED 16 JUN HONTH LOGGED

N BLOW COUNT INDICATES SAMPLE TAKEN WITH STANDARD PENETRATION TEST (1.4'I.D..2.0'O.D. SAMPLER DRIVEN WITH 140 LB. HAMMER, 30' FREE FAL

PLAN VIEW SYMBOLS 8 POWER AUGER TEST HOLE (T.H.I

@ 0 EXPOSED MATERIAL f PROBE

0 E OOZER/BACKHOE TEST TRENCH (T.T.1

HAND AUGER TEST HOLE (T.H.)

HAND OUG TEST P IT (T.P.1 BLASTEO TEST PIT (T.P.1

XXXXX WASTE BERH

BANK

'yxv SWAHP - TREELINE

COLOR By - BLACK O r - ORANOE 81 - BLUE Rd - RED _. _ _ ~ _ Bn - BROWN Tn TAN On - OREEN Wh - WHITE 5y - ORAY

MOISTURE

Damp - OPTIMUM* WET - > OPTIMUM*

R Y < OPTIMUH*

* OPTIMUM MOISTURE FOR HAXIHUH OWSITY

FIGURE 3

- 9.-

STATE OF ALASKA - NORTHERN REGION DEPARTMENT OF TRANSPORTATION AND PUBLIC FACILITIES

SOILS TESTING REPORT

PLASTIC INDEX CLASSIFICATION SOIL DESCRIPTION NATURAL MOISTURE

SP.GR. (COARSE) MAX DRY DENSITY OPTIMUM MOISTURE L.A. ABRASION DEGRADATION FACTOR

e, according 10 Alaska Test Melhcd T-7.

- 1 0 -


SOILS TESTWG REPORT

PROJECT NAME: KIANA AIRPORT IMPROVEMENTS PROJECT NUMBER: AIP-3-02-0146-01/64762 SOURCE Centerline SAMPLED BYC P.Ondra

PUSTlC INDEX CLASSIFICATION SOIL DESCRIPTION NATURAL MOISTURE

SP.GR. (COARSm MAX DRY DENSIN OPTIMUM MOISTURE L.A. ABRASION DEGRADAllON FACTOR

89-5 2-4 52tDD

Rt. 40.5 89-2355 9-28-89

101 9!

91 9: 9. 9: e! 5!

NV NP ML

SaSt

KIA0

' - Gradation is based on material passing the 3 inch sieve, according l o Alaska Test Method T-7. See graphic logs lor amount 01 +3 inch malerial, if any.

-11-

a "I

@ f a W z

~J

I

- H

89-5 89-9 89-7


S O U TESTING REPORT

SI// - Clay I Clay Slze 02mm I I

P u s n c / N o m CLASSlFlCA TlON SOIL DESCRlPTlON NATURAL MOlSTURE

SP.GR. (COARS@ MAX DRY DENSITY OPTIMUM MOISTURE L.A. ABRASION DEGRADATION FACTOR SODiUM SULF. (CRSE)

K I M

' - Gradation is based on material passing the 3 inch sieve, according to Alaska Test Method T-7. See graphic logs for amount of +3 inch material, if any.

-1 3-

I

SAMPLE 89-2352

55 60 65 75 75



PROJECT NAME: KIANA AIRPORT IMPROVEMENTS PROJECT NUMBER: AlP-3-02-0146-01/64762 SOURCE: Centerline

Clay Size 02mm 1 1 I 005mm

LlOUlD LIMIT PUSTIC INDLY ClASSIFICAnON SOIL DESCRlPTlON NATURAL MOISTURE SP.GR (FINE) SP.GR. (COARSE) MAX DRY DENSITY OPnMUM MOISTiJRE L.A. ABRASION DEGRADATION FACTOR SODIUM SULF. (CRSE) SODIUM SULF. (FINE) ORGANICS REMARKS

1' - Gradation is based on material oassina the 3 Inch sieve. accordlna to Alaska Test Method T-7.

NV NV NV NP NP NP

ML ML ML SaSi SaSi SaSl SaSl SaSi SaSl

77.7 30 8 35.9 1011.8 100.0 69 4

--

100 99 95

64

NV NP M Sa

I See graphic IOQS for amount of ;3 inchinaterial. i f any. '

-

- 1 5 -

STATE OF ALASKA - NORTHERN. REGION DEPARTMENT OF TRANSPORTATION AND PUBLIC FACILITIES


pusnc INOEX CLASSIFICA TlON SOIL OESCRlPTlON NANRAL MOISTURE

SP.GR. (COARSE) MAX DRY DENSIN OPTMUM MOISTURE L.A. ABRASION DEGRADATION FACTOR SODIUM SULF. (CRSR SODIUM SULF. (FINa

NV NP OL

Ice wl OL

204.5

16.9

K I M 6 - Ofadation is based on material passing the 3 lnch sieva, aCC0rdhg to Alaska Test Method T-7. See graphic logs for amount of +3 inch rnaterlal, If any.

- 1 6 -



PROJECT NAME: PRWECT NUMBER: AiP-3-02-0146-01/64762 SOURCE: Centerline SAMPLED BY: P Ondra

Kt ANA AIRPORT IMPROVEMENTS

AV #lo n I . ? O O . I : . . 0 0 . , I. I

.005mm I I I I I NV NV LlOUlD LIMIT NV NV I I

p u s n c INDEX CulSSIFlCA TlON SOIL DESCRIPTION NATURAL MOISTURE SP.GR. (FINQ SP.GR. (COARSE) MAX DRY DENSITY OPTIMUM MOISTURE LA. ABRASION DEGRADATION FACTOR SODIUM SULF. (CRSE) SODIUM SULF. (FINE) ORGANICS REMARKS

' -Gradation is based on material passing Ihe 3 inch sieve, according to Alaska Test Method T-7. See graphic logs lor amount 01 e3 inch material. il any.

- 1 7 -


REGIONAL MATERIALS LAB

AGGREGATE TEST REPORT

1 SIEVE I REG. I F I E L D ~ SPEC I

PROJECT: KIANA AIRPORT PROJECT#: AIP3-02-0146-01 SAMPLE OF: Fill

TESTHOLE: 89-12 STATION: 38+00 OFFSR: Lt.28.5 DEPTH: 0-1.5

TEST 1 REG. I IEL

LAB #: 89-2366 FIELD #: 89-2366

SIZE

ACCEPTANCE: ASSURANCE:

DATESAMPLED: ' 9-28-89 INFORMATION: XXXX DA TE TESTED: 9-28-89

LAB LAB

SANO EOUIV T-12 CALIF BEARING SPECIAL TEST

2 4 6 8 1 0 1 2 96 MOISTURE

TEST I REG. /FIELD/

I LAB I LAB OVERSIZE

FINEAGG

96 ORGANICS

FEE I PLOT OF I 147

142

137

132

127

SIGNATURE:

TED C. HARWOOD REGIONAL LAB SUPERVISOR

ACCEPTABLE:- UNACCEPTABLE:- CONFORMS TO SPECIFICATIONS: YES:- NO:- NA:-

SIGNATURE' a w m o : CHIEF CONST CNO

DIBTRI~UTION: Pnnxcr i i m QA w s . R~O~DNIL LALI

4.w QUALIN ASSURANCE INSPECTOR

DROUPCMIEF ..-- --, CRVCUC .----- ,QA INOP

- 1 8 -


REGIONAL MATERIALS LAB

AGGREGATE TEST REPORT

PROJECT: KIANA AIRPORT LAB#: 89-2362 PROJECT#; AIP:3-02-0146-01 FIELD #: 89-2362 SAMPLEOF: Fill

TESTHOLE: 89-9 ACCEPTANCE: STATION: 44+00 ASSURANCE: OFFSfl: R1.35 DATESAMPLED: 9-28-89 INFORMATION: xxxx DEPTH: 0-2 DATE TESTED:

TEST I REG. /FIELD

% ORGANICS

I PLOT OF I

143

138

133

128 - SAND EQUIV 2 4 6 8 1 0 1 2 T-12 %MOISTURE CALIF BEARING SPECIAL TEST - REMARKS:

SIGNATURE:

TED C. HARWOOD REGIONAL LAB SUPERVISOR

ACCEPTABLE:- UNACCEPTABLE:- CONFORMS TO SPECIFICATIONS: YES:- NO:- NA:-

SIGNATURE: QUALITY ASSURANCE INSPECTOR

- 1 9 -

;:-:, :",,6'-s>. 5.76 ea-24 89-22 84-23 83-16 B9-:53 89-20 89-21 e0-17

0-0-1.0 12' O r g mat 1-0-1.5 Bn Or? S1LT

- 0.0-i.0 12' O r aa t 1.0-4.0 GY sa D ~ L T

( i c e - r i m 1 4 . o - i i . o ~ y Sa SILT 1.5-6.0 Gy Sa SiLT

SAHPLE 89-2375 l i c e - r i m 1 15.0-6.01 6.0-i1.0 Gy Sa SILT HL. 64%-200

0.0-1.0 :2- Org mat 0~0-0.5 6' Org mat 0 . 0 - 1 ~ 0 12' 0-5 ma: 1.0-1.5 Bn Cr; S ILT ..0-1.5 Bn Org SILT

1.5-2.0 Bn Org Siii 1.5-5.0 Gy Sa SILT l ice- r i c h i 1 c e- r i c h?

SAM?_? 89-2372 2.0-5.0 d y Sa SiLi HL. 581-200 "-35.9% 12.5-3.0) l i c e- r i c h )

SAMXE 89-2373 13.0-4.01

? 0-1.0 12- org ma:

SAHPLE 85-23

NH-38.9X NU-37. 8% (9.0-10 .Ol

1.0-11.0 Gy Sa SiLT 0.5-ll.0 Gj Sa SILT SAHPLE 89-2370 15.0-6.01 HL. 50%-ZOO NH-30.B%

NU-104~6% SAHPLE 85-2374

( 4 . 0 - 5 . 0 ) HL. 721-200 NM=:OOX NU-69.4%

l i c e- r i c h l SAM?LE 89-2363 (2 -5-3.01 NM-77.7%

5.0-11.OGy Sa SILT 5.0-11.0Gy Sa SILT

83-31 89-32 69-30 0.0-0.33GY Si Gr SAND. 0.0-0.5 Org mat

0.5-1.0 Bn PEAT 1.0-3.0 ICE. <50% silt 1.0-3.0 Bn o r g . SILT.

SAMPLE 81-2382 l i c e- r i c h 1 12.0-3.01 3.0-5.0 GY S i SAND

IF i l I )

IF i l11 SAHPLE 89-2381 (2 .O-3 -01 OL. 56%-200 l i c e- r i c h ) SH. 30%-200 NM=204.5: SAHPLE 89-22

0.33-6.0 Gy Si SAND,

81-25 89-26 89-27 89-26

6 . 0

Gy Si G r SAND. 1.0-2.0 Bn Org SILT f ig11 E

I F i l l I :e. 0.16-7.5 GY S i SAND. 0.16-6.0 Y 1 SAND

woo0 p i e c e s a t 6.0 SAMPLE 853-2379 SAMPLE 89-2379 15.0-5.01 10.5-6.01 10.5-5.01 SM. 422-200 SM. 42%-200 NH-20.5% NM 12.0-3.0) 7.5-9.0 Gy Sa SILT, -11.7%

seam a t 7.5 SAMPLE 89-2380

HL. 51%-200 NH=15.9 ORG. 16.9% (4.0-5.01 6.0-6.5 En Org SILT 3.0-4.5 ICE SH. 44%-200

0.0-1.0 12 '0 rg mat 0.0-1.0 12' Org mat L O - 1 . 5 Gy Sa SILT 1.5-5.0 Gy Sa SILT

l i c e- r i c h l SAHPLE 89-2377 12 ~ 0-3.01 HL. 82%-200 NM= 79.0%

2.0-6.0 Gy Sa SiLT l i c e- r i c h 1 SAHPLE 89-2376 12.0-3.01 NW.=81.71

6.0-11.0 Gy Sa SILT

7.0-8.0 Bn Org SILT. 4.5-11.OGy sa SILT NM=57.B% 8.5-7.5 Bn Org SILT.

~~

5.0-11.0 Gy Sa SILT l i c e- r i c h 1 l i c e- r i c h 1 6.0-9.0 Gy Sa SiLl w e t ( i c e - r i c h )

5.0-11.0 Gv sa SILl

8.0-9.0 Bn Org SILT l i c e- r i c h )

-

ALTERNATE - APRON ARE, 89-36 e

89-33 89-32

-63

89-35 89-36 7 - 89-33 80-34

0.0-1.0 Org ma: 0.0-1.0 Org m a t 0.0-0.16 Org mat ?.0-1.5 Bn Org SILT 1.0-1.5 Bn Org SILT 0.16-2.0 Bn PEAT

6.0-11.0 ICE ~ 5 0 % sift SAMPLE EO-2385 l i c e - r i c h t o 1.5-7.5 Gy Sa SiLT. 2.0-4.0 GY Sa SILT. L 2.5-3.5 Bn Org SILT ~5-6.0 Gy Sa 5"'.

l i c e- r i c h 1 l i c e- r i c h ) 4.0-11.OGy Sa SILT.

HL. 78-200 l ice-rlcnl

l i c e - r i c h 1

14.0-5.01

NH=92.7%

SAMPLE 85-2385 11.0-15.0 Gy S I L T . 15.0-6.01 7.01 HL. 86%-200 "Z74.9Z

0.0-1.0 Org m a t 1.0-2.0 Bn Org SILT 2.0- 5.0 Gy Sa SiLi

l i c e- r i c n i 5.0-l1.OGy Sa SILT,_

SAMPLE 8C-z:34 6.0-7.01 HL. 72%-200 NM=40.7'.

89-17 E3

89-18 63

._- 89-20

63

89-22 63

rcn Cn IJU J U

200 100 0 100 200 400

U"". -. o* 7.5-12.0 ICE <50% s i l t 12.0-15. OGv SILT^

5.5-11.0 Gy Sa SILT

. - . !PROJECT NC.: 8 ~ 7 5 2 -~ -

I

I - r I STATE OF ALASKA I DE?ARTMENT OF TRANS?ORTA TION AND PUBLIC F A C I L I T I E S

I ENGINEERING GEOLOGY UNTT - . ~ - . OAT& PO { KIANA AIRPOR~

APfiON LAYOUT PLAN

IOe'E: 2/14i90 SCALE' AS SLtL-'. 5 . : -

BORROW S I T E 1

LOCATION AND ACCESS

This s i t e i s loca ted on the s ide o f a h i l l approximately 500 f e e t west o f the e x i s t i n g runway. A t r a i l extends f rom the west end o f the runway t o the s i t e .

OESCRI PTION

The s i t e has been c u t i n t o the s ide o f a h i l l s l op ing down from t h e west end o f t h e runway. excavated 1 t o 5 f e e t deep. Ava i l ab le mater ia l cons is ts o f 4 t o 6 f e e t o f s i l t y sand over a sandy s i l t .

CLEARING AND STRIPPING

The s i t e was c leared and s t r i pped i n t h e past . The area east o f t h e e x i s t i n g work area has been c leared but no t s t r ipped.

WATER TABLE

No water t a b l e was noted i n the t e s t holes i n t h i s s i t e .

FROZEN GROUND

Frozen ground was found s t a r t i n g a t depths o f 7 . 0 t o 7 . 5 f e e t below t h e sur face o f t h e s i t e and extended t o the depths explored.

LAND STATUS

This s i t e i s l oca ted on a i r p o r t proper ty .

QUALITY OF MATERIALS

Sampling i n d i c a t e s the f i n e sand and s i l t i n t h i s s i t e may be s u i t a b l e f o r use as Borrow Embankment ma te r ia l . The na tu ra l moisture o f the unfrozen m a t e r i a l was 14.3 and 21.5 percent and i n the f rozen m a t e r i a l was 34.9 and 36.3 percent . Laboratory t e s t s showed t h e optimum moisture content t o be 11.4 and 12 .7 percent, so d r y i n g o f the ma te r ia l t o near optimum moisture w i l l be necessary i f t h i s ma te r i a l i s t o be used.

MINING PLAN GUIDELINES

Place a l l waste along the n o r t h s ide o f t h e s i t e . Slope t h e f l o o r o f the work area t o d r a i n t o the west. A volume l o s s o f approximately 25 percent should be a n t i c i p a t e d when t h i s ma te r i a l i s compacted i n t o embankments.

An e x i s t i n g work area 300 f e e t l ong by 300 f e e t wide has been

- 2 1 -


SOILS TESTWC REPORT

PLASTIC INDEX CLASSIFICA TION SOIL DESCRIPTION NATURAL MOISTURE

~

SP.GR. (COARSQ MAX DRY DENSITY OPTIMUM MOISTURE LA. ABRASION DEGRADATION FACTOR SODIUM SULF. (CRSE)

1 KIA07

- Gradation is based on material passing the 3 inch sieve, according to Atasca Test Meihod T-7. See graphc logs for amount of .3 inch material. if any.

- 2 2 -

VICINITY MAP

pa - CAT

VERTICAL APPROVED: HRL

2/$4/SO SCALE DATE'

SCALE: i" i MILE PROTRACTED T IBN. RBW

KATEEL RIVER MERIDIAN USGS SELAWIK (D3), ALASKA

BORROW SITE I

PROJECT NO.: 64782

SCALE A 8 WDYN

88-38 0.0-4.0 Oy Si SAND

SAMPLE 89-2387 (0.0-3.0) 8M. 2iX-200 NM-21.5X

4.0-18.00 88 SILT wet (ice-rich below 12.0) SAMPLE 69-2386 16.0-7.01 ML 6lX-200 NW-38.3X

89-39 0.0-1l.OOy 51 SIN0

wet a t 4.0 SAMPLE 89-2389 (0. 0-3.0) 6M. 20%-200 NM (2.0-3.0) -14.3X more a l l t at 6 (ica-rich a t 8.01

(9.0-1i . 01 SAMPLE 89-2390

ML, 4111-200 NH-34.9X .

\-

SCALE I N FEET

200 100 0 i o0 200 400

- - - - - * - - - -

STATE OF ALASKA

- 2 3 -

BORROW S I T E 2

LOCATION AND ACCESS

This s i t e i s l oca ted about 0 .3 m i l e no r t h o f the east end o f the e x i s t i n g runway. runway t o the s i t e . i s c u r r e n t l y unsu i tab le f o r veh i c l e t r a v e l .

DESCRIPTION

This borrow s i t e has been c u t i n t o a se r ies o f th ree r idges t h a t descend from a h i l l s i d e t o t he west and drop s teep ly o f f t o t he Squ i r r e l R iver f l o o d p l a i n t o t he east . The s i t e cons is ts o f th ree separate e x i s t i n g work areas about 200 f e e t apar t . The work areas are each 500 t o 600 f e e t l ong by 150 t o 200 f e e t wide and are p a r a l l e l t o each o ther on the elongate s ides. t he th ree work areas are near ground l e v e l on the east end and have been excavated 5 t o 10 f e e t below t he surrounding ground on the west end.

Ava i l ab l e ma te r i a l cons is ts o f a s i l t y sand w i t h seams o f sandy s i l t and g r a v e l l y sand.


The work areas o f the s i t e have been c leared and s t r i pped i n t he past w i t h a l l waste ma te r i a l p laced a t the east end o f the work areas ( t h e downhi l l ends).

WATER TABLE

A water t a b l e was found a t depths o f 3 t o 5 f e e t a t t he west end o f the s i t e bu t was no t found a t the east end o f the s i t e . Because o f t he steep slopes i n the s i t e s t h i s water t a b l e i s probably water moving over the f rozen l aye rs and down t he slope.

FROZEN GROUND

Frozen ground was found s t a r t i n g a t depths o f 6 t o 8 f e e t below t h e surface and extended t o the depths explored.

LAND STATUS

This s i t e i s l oca ted on land owned by the Nana Regional Corporat ion.


Samples o f t he f i n e sand and s i l t i n t h i s s i t e i n d i c a t e i t may be s u i t a b l e f o r use as Borrow Embankment mate r ia l . The na tu ra l moistures o f t he unfrozen ma te r i a l was 15.4 and 21.2 percent, and 32.5 percent i n t he f rozen ma te r i a l . Laboratory t e s t s showed t he optimum moisture content t o be 11.6 and 12.6 percent; so, d r y i ng o f the mate r ia l t o near optimum mois ture w i l l be necessary i f i t i s t o be used.

An access road runs from the v i l l a g e around t he east end o f the This access road i s badly washed out i n several spots and

The f l o o r s of

- 2 4 -


If the site i s used:

Install culverts at all washouts and upgrade the current access road as necessary.

Place all waste along the east side o f the site. Construct ditches along the western sides of the existing work areas. This will allow drainage to the natural gullies along the northern and southern sides of the work areas and prevent erosion of the pit floors. This may be helpful in reducing moisture in the material toe. A volume loss of approximately 25 percent should be anticipated when the material is compacted into embankments.

Continue excavating the site deeper and to the west.

- 2 5.-



LA8 NO.

I I

. . .. .. .. ' - Gradation is based on materlai passing the 3 inch sieve, according to AiaskaTest Method T-7.

See oraohic Ioos for arnaunl of +3 inch material. if any.

- 2 6 -

.

I STATE OF ALASKA DEPARTMENT OF TRANSPORTATION

O U I AND PUBLIC F A C I L I T I E S 5 1 1 ENGINEERING GEOLOGY UNIT

- 2 7 -

.

BORROW SITE 3

Th is s i t e i s a grave l bar located on the no r t h bank o f the Kobuk River about 4 mi les downstream from Kiana. The l o c a l name f o r t h i s s i t e i s Okok Poin t . Access t o t h i s s i t e i s by boat i n the summer and by i ce- road i n t he w in te r .

DESCRIPTION

Okok Po in t i s a grave l bar t h a t i s approximately .5 m i l e long and 50 t o 60 Feet wide depending on the l e v e l o f the r i v e r . Ava i lab le m a t e r i a l cons is ts o f a g r a v e l l y sand and s i l t y sandy gravel w i t h cobbles and boulders up t o 2 f e e t i n diameter. Th is ma te r i a l was found t o bottom ou t a t a d e p t h -o f 2.5 f e e t a t a t e s t p i t dug near t he waters edge bu t was a t l e a s t 3 f e e t t h i c k a t another p i t dug h igher up on the bank. Judging by in fo rmat ion f r o m the 1979 ma te r i a l s i nves t i ga t i on , we est imate the sand and grave l t o range from 2 . 5 t o 5 f e e t t h i c k . Th is s i t e was used t o prov ide su r fac ing mate r ia l f o r the 1980 runway su r f ac i ng p r o j e c t .


Clear ing and s t r i p p i n g i s no t expected t o be necessary a t t h i s s i t e .

WATER TABLE

The water t a b l e i s approximately a t t he same l e v e l a s t he water i n the r i v e r and f l u c t u a t e s accord ing ly .

FROZEN GROUND

Perenn ia l l y f rozen ground i s no t expected t o be present a t t h i s s i t e w i t h i n the channel. However excavat ion i n t o the bank may uncover f rozen ma te r i a l .

LAND STATUS

The p o r t i o n o f t h i s s i t e below o rd ina ry h igh water belongs t o the S ta te o f Alaska. Upland areas are owned by Nat ive C o r p o r a t i o n s o r i n d i v i d u a l s .


The sample o f sand and grave l ava i l ab l e i n t h i s s i t e i n d i c a t e i t may be s u i t a b l e f o r use as Borrow Embankment mate r ia l and Aggregate Surface Course ma te r i a l .


This s i t e was excavated dur ing t he w in te r months when the r i v e r i s a t i t s lowest l e v e l and the mate r ia l cou ld be hauled by t r u c k over t he r i v e r i c e . Prov is ions may have t o be made t o s t ockp i l e t h i s mate r ia l near the e x i s t i n g runway.

Min ing ou ts ide t he channel above the o rd ina ry h igh water l i n e w i l l r e q u i r e coord ina t ing w i t h the upland land owners who have i nd i ca ted concerns about poss ib le erosion. Mining below o rd ina ry h igh w a t e r w i t h i n the channel w i l l r e q u i r e permi ts from s t a t e and federa l agencies.

- 2 8 -



PROJECT NAME: KIANA AIRPORT iMPROVEMENTS PROJECT NUMBER: AIP-3-02-0146-01164762 SOURCE: Borrow SAMPLED BY: P.Ondra

OFFSET (FEET) U B N O . '

DATESAMPLED I 10-1-89 I 10-1-89 1 PERCENT PASSING' I 5 2

WlOO 6 13 I I Silt - Clay #200 I 4 1 9 )

2ASSIFICA TlON Sol1 DESCRIPTION VAWRAL MOISTURE SP.GR. (FIN@ SP. GR. (COARSE) WAX DRY DENSITY 3PTIMUM MOISTURE !.A. ABRASION XGRA DA TlON FACTOR SODIUM S U M (CRSE)

K I M

' - Gradation is based on material passing the 3 inch sieve. accordlng to Alaska Test Method T-7. See graphic logs lor amount of t3 inch material. If any.

- 2 9 -

.

T C L n U .( U \ 0 U

c: U \

.c + \ Y L + \

r

r

VICINITY MAP SCALE: 1’ 1 MILE

PROTRACTED TIBN. ABW KATEEL RIVER MERIDIAN

USES SELAWIK (03 ) . ALASKA

OKOK POINT SAMPLE 89-2394 (0.0-2.01

G r SAND SW. 4%-200 LA, 34 DEG, 46

SAMPLE 89-2395 (0.0-1.5) Si Sa GRAVEL GW-GM, 9%-200 LA, 34 DEG, 41

/-7

-30-

BORROW S I T E 4

LOCATION AND ACCESS

This s i t e i s l oca ted about 3 mi les upstream from K iana along t h e Squ i r re l River . The s i t e i s loca ted 0.5 m i l e east o f the r i v e r bank. There i s no c u r r e n t access road t o t h i s s i t e .

DESCRIPTION

This s i t e i s on a rounded k n o l l upslope f r o m the S q u i r r e l R i ve r . The k n o l l i s about 600 f e e t long by 325 f e e t wide and r i s e s t o 30 f e e t above the surrounding t e r r a i n .

Ava i l ab le ma te r ia l t o a depth o f 4 f e e t cons is ts o f a g r a v e l l y sand and sandy gravel w i t h occasional cobbles t o 4 inches i n diameter.


This s i t e conta ins sparse vegeta t ion on an organic mat genera l l y l e s s than 4 inches t h i c k . through t h e organic m a t i n several l oca t i ons .

WATER TABLE

The water t a b l e was no t seen t o a depth o f f o u r f e e t i n the hand-dug t e s t hole.

FROZEN GROUND

Frozen ground was no t i d e n t i f i e d w i t h i n the top 4 f e e t o f t h i s s i t e but should be expected a t depth w i t h i n t h i s s i t e .

LAND STATUS

This s i t e i s l oca ted on land owned by a n a t i v e a l l o t t e e .


The two samples from t h i s s i t e i n d i c a t e the ma te r ia l may be s u i t a b l e f o r use as Borrow Embankment ma te r ia l and Aggregate Surface course.


This s i t e i s c u r r e n t l y undeveloped and a 0.5 t o 0.75 m i l e access road across very swampy t e r r a i n would have t o be constructed t o reach t h e banks o f t h e Squ i r re l River . t h a t t h e ma te r ia l could be hauled by t r u c k over the r i v e r i ce . Prov is ions would have t o be made t o s t o c k p i l e t h i s ma te r i a l near the e x i s t i n g runway.

Po r t i ons o f t h i s s i t e are encumbered by poss ib le archeological s i t e s . west 4) . The engineer w i l l de l i nea te the area where mining a c t i v i t i e s can proceed w i thou t f u r t h e r archeological m i t i g a t i o n .

The sand and gravel l i e d i r e c t l y below t h e organic mat and show

Th is s i t e would have t o be mined du r ing t h e w i n t e r months so

(The

.

.

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SOILS TESTINQ REPORT

PROJECT NAME KIANA AIRPORT IMPROVEMENTS PROJECT NUMEER: Alp-3-02-0146-01164762 SOURCE: Borrow SAMPLED BY: P.Ondra

PLASTIC INDEX CLASSIFICATION SOIL DESCRIPTION NATURAL MOISTURE

SP.GR. (COARSR MAX DRY DENSITY OPTIMUM MOISTURE LA. ABRASION DEGRADATION FACTOR SODIUM SULF. (CRSE)

' - Gradation is based on material passing the 3 Inch siwe. according lo Alaska Test Method T-7. See graphic logs for amount of +3 inch material, If any.

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a

VICINITY MAP SCALE: 1" = 1 MILE

PROTRACTED TIEN. R8W KATEEL RIVER MERIDIAN

USGS SELAWIK (03). ALASKA

SQUIRREL RIVER SAMPLE 89-2396 (0.0-2.0)

Sa GRAVEL GW. 4%-200

I

SAMPLE 09- 2397 [O.O-i.5) Si G r SAND sn-sM. 11%-200 LA , 40 DEG. 46

BORAOW S I T E 4

I STATE OF ALASKA DEPARTMENT OF TRANSPORTATION

AND PUBLIC FACJL ITIES ENGINEERSNG GEOLOGY UNIT

BORAOW SITE 4 OAT*: PO

0FiAWt.t CAT

APPROVEU MIL PROJECT NO.: 84781

SCALE IN FEET

50-00

D A T E 2/14/80 SCALE: A 8 SHOW

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REFERENCES Hartman, C.W., and Johnson, P.R., 1984, Environmental Atlas of Alaska, 2d

Pavey, D.R., 1973, Kiana Materials Investigation, Existing Alignment and

Ottley, Tom., 1979, Engineering Geology and Soils Report, Kiana Materials

Edition, University o f Alaska, Institute o f Water Resources, 9 5 p .

Borrow Site, Division of Aviation, Alaska Dept. of Public Works, 17.p.

Investigation, Engineering Geology Section, Division o f Aviation, South Central Region, 53p.

Transportation and Public Facilities, Division of Standards and Technical Services, Materials Section, Anchorage,

Airports, Alaska Department o f Transportation and Public Facilities.

P.rofessiona1 Paper 482, U.S. Government Printing Office, Washington, D.C., 325p., Supplement 72p.

Staff, 1983, Geotechnlcal Procedures Manual, Alaska Department of

58p.

-, 1983, General Contract Provisions and Construction Specifications for

Wahrhaftig, Clyde, 1965, Physiographic Divisions of Alaska, Geological Survey

..

.

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Documents

GEOTECHNICAL - dot.alaska.govdot.alaska.gov/nreg/projects/Z631790000/1990_kiana_geotech.pdf · GENERAL RECOMMENDATIONS 1, should be kept lower than the runway to prevent snow drifting