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Page 1: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas
Page 2: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

SUBSTRUCTURE INV~TIGATION FOR

~RO~OSED BRIDGES ACROSS SOUADABSCOOK STREAM

INT~"'RSTA'rE HIGffilAY SYSTEM

H.AI1J:.DEN t l1AINE

state Hight-lay' CommissionSolIs Division

MAY 1961

Page 3: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

HAMPDENPENOBSCOT COUNTYPROJECT NO. 1-95-7(14)

EAST BRIDGE, SOUADABSCOOK STREAM

1961

TO HERMON...

LOCAT/ON MAPSco/~ I": 1 Mile

KEY MAP

TO

HAMPDEN

Page 4: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

TEXT-.Faf5~

Introduction 1

General Conditions ISUBSTRUCTURE: DE;TAILS

North Bq~tnd Lane.-

Abutment No o I 4

.fier ~o. 1 5

.fier No. 2 5Abutment No. 2 6

South Bound Lane

Abutment No. I ?Ilier No.1 8

Pier No.2 8

Abutment No. 2 9Drainage Channel 10

Summary 11

ILLUSTlt'd'IONS

Boring NotesBoring Detail Sheets

Boring AB-9, AB-IO, AB-ll, AB-12

Boring AB-14, AB-l5, AB-l6, AB-l?Boring AB-20, AB-2l, AB-22, AB-23

Boring AB-24, AB-25, AB-26. .!B-2? t

011-42. CB-43Plan of River Area?rofile along Centerline with rod soundingsrlan, ~ofiles, Transverse Sections

1 & 2

34

5

6

?8

9

Page 5: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

I'lTRODUCTIOH.-.,. • -_.....,.....·'1--.,

A subsurfac~ investigation has been compled;ec1 foX' the

proposed su"bst:::"U,..-;ture \.1,uits for the two bridges reqt'.ir-sd to

c;!Jrry tue Il'lter'state Bl~:lu;ay across the e~st seotion cf the

Souadabsc()ok Stream for both -the North and South bound lanes ..

This location is the tnir.d crossing of the Souadabscook

Stream necessitated by locat~ng the Interstate to the

sou~herly portion of the large and extensive bogs within

the area. ~he southern alignment affords better subsurface

soil eonditions~

2:ighteen "borings were made at the proposecl substructure

locatio~6 and fiye so~dlngs were made along the proposed new

channel.. These borings \'1ere complet~d in March and May

of this year. }reliminary subsoil data was obtained by the

geology (~rm'iS during the winters of 1959 and 1960.

Boring notes are shown on Sheets 1 and 2, while the details

for the eighteen. borings are shown on Sheets 3 through 6

(inelusive)~ A plan showing the flow of the stream is shown

on Sheet 7 while stream cross sections along the centerline

o~ the nortb.bcn..o.o. B.nd southbound lanes as determined by

rod soundings ~re shown on Sheet 8~ The general plan of

the proposed cr.ossing together with transfers and centerline

12:('ofi1es 1e ft and right of both north and south bound lanes

are ShO'Non on 3~eet 9~

GEN~RAL CONDITIONS... "_.I1.~ ... go __

In locating the Interstate Highway between Newport

and Bangor, it .. as necessary to transverse a large and

extensi'T6 swam.p area north a.nd south ot' Hermon Pond. In the:.

final location u it was proved that the beau alignment ~

Page 6: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

' .....,-

I

soils wise, was to the south of He~no~ Pond crossing slightly

to the no~th q~ Eammond rond and passing well to the south of

the so called, Il extensive," Herm.on Bog. In this southerly

alignment, the new centerline is adjacent to the existing

Bog Road and the second two locations are required since

the Souadabscook Stream flows to the north in an ox-bow ­

like fashion with the centerlines piercing the bow. This

~~?ort covers the easternmost crossing of the Souadabscook

. Stream. Soils reports will be completed shortly for the

Center and West crossing of this stream.

The oouadabscook Stream begins at Etna Pond and flows

southeasterly picking up flow from Harvey Stream, Tracey

Brook, Hill Broo~1 and Black Stream enroute into Hermon Pond

~here the flow is picked up from Tracey ~ond and Ben Annis Pond

baf'ore it continues into Hammond Pond. In sl'1inging tram

George's £ond by \llieeler'g Stream which extends north to

Hermon Center and the Hermon Bog area. Southeast or the

proposed crossing of the Sou~dabacookStream, ledge outcrops

were observed within the stream bed and extensive outcrops

were noted 2000 fee~ dow~stream from the proposed crossing.

These ledge outcrops indicate the probable reason why the

wet and boe:ro· areas have been developed in that the dammed-up

water has resulted from the shallow ledge outcrops. No

heavy flows should be expected within this stream. However,

the draina~e area serviced by the stream is extensive and it

was noted that the high water elevation of 130.5 was reached

in the flood of 1936 as well as 1955, with normal spring

elevation water annually running between elevation 120 and

l23~ ThUS, scour is not one of the critical factors for the

SUbstructure units within this bridge loeat~on.

-2-

Page 7: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

'The shallow ledge sUI'face which WEI.S mentioned 'GO lie

in this s1;rearr, soutihorly of the crossing \lTas p::'i..cked up in

all th!c 'borings within the area. This shallow ledge surface

piers can be placed directly on the ledge surface with

a minimum of clearing of the overburden. Behind the bridge

abutments') the grade line ~"ide6 at about elevation 1;6. Since

the ground elevation at the southerly abutment is at elevation

125, and the northerly abutment is below elevation 120,

fills will be completed behind the propose~ bridge abutments.

It is believed that it is more economical to o~ive piles

through the approach fills into the underlying material

and support the bridge substructures through end bearing

piles on ledge.

At the present c~ossing, it was noted that the cross

section area was much larger along the south bound crossing

than at the north bound crossing. This is attributed to

the more scourable material being encountered along this

south bound lane. In excavation for the new drainage channel,

the deepest elevation of this stream was noted to be at

els'Vation 108 on the north end of the south bound lane.. The

ledge surface was encountered along the proposed channel in

the ~icinity of elevation 115. It is believed that if the

ledge surface is cleaned off within the proposed drainage

channel and the embankments on the easterly side of the

stream are well compacted, no serious difficulty should

arise provided the substructures for the piers are placed

directly on the le~ge surface.

An examlnaticn:of 'the existing slopes of the stream·

-~-

Page 8: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

snmt7s t:.!E,(~: thEl granular sand and :t"ock lies on. a 1: 1 slope

because 02 their denseness, but these \-lill tend to remain

on a 2: 1 slope ....!ith tjime. Unfc1rtunately, the underlyj.ng

clays are sort ,;:.no 7(,:Z:':1. serlsi-l;ive and at present., rem.ain ona near 5:1 slope. The material is very sensitive to remculding

as the rIate·r content '"'las at ·the liquid limit· of the soil.

This means that the material will aot as a liqUid if

remoulded or disturbed. Eurther complications arise sinoe

the stream 1s a secon~ary source of water ror the town of

Hampden four miles dO\instream, and this clay would take

over tl,'lelve .hours to settle out of suspension.. .Part of

the stream is in rapids but if the average was 3 m.p.h.,

this w.o~ld meaU that some silting would probably arise.

Thus, a minimum of disturbance is required.

The ledge within the area was noted to be of phyllite

with allowable bearing values of 10 tons per square foot

since so.~e of tois ledge may be fractured due to weathering

and also ~ since the footingF :for the bridge will be

placed withln W8.ter without de-·watering,.

SUBSTHUCIIURE: L8TAIL~)...,"",..~__. .,,:~•._,r__- ...~. .

Abutment No •. 1: Borings AB -11 and A-B -12 were made~,---

on the left and right ends of the proposed sUbstructure

:for Abutment No. 1 at Stat;ion 3587+25. The details for

these two "borings are shov..'!l on Sheet 3 with theitransv'erse

and centerline "profiTes s:.howIlon Sheet.9. As can be seen. .. ' .. '

.,~

on the latter profile, ledge was· encountered in the vicinity

of elevation 114 with an overburden of 10.5 feet of dense

gravelly silt noted in ~oring 11 and with 8~ feet of the

-4-

Page 9: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

same material located on the right except ~wo feet of weathered

siltY' clay was noted to lie on top in Boring 12. Since the

finished grade on the north bound lane 1s at elevation 136~1

and the grquud surface along centerline is that· of elevation

125. it will probably be more economical to complete the

approach fill and drive piles through the f111 into the dense

gravelly silt. It 1s believed that piles can be driven to

the ledge surrace, however oceas~ionally, piles may be stopped

by boulders in the d~nse gravel17 silt. Steel or cast-in­

place concrete piles s~ould prove satisfactory and wooden

piles are not recomme~ded since t4e ground wat~r t~ble will

be low.

1-'ier No, 1: Borings AB-9 and AB.10 were made on

centerline and ~o the left of the pr9pos~d location of £ler

No. 1 at Station 3557+62. The det#111s for these ·two borings

are shown on 'Sheet 3 while the transverse section and

centerline profiles are shown'on Sheet 9. The proposed

location of ~ier No. 1 1s on land, however, it 1s proposed

to excavate the drainage chaD~el to' the vicinity or elevation

114. The ledge sur~ace was encountered in these two borings

at elevation 112.5 and 111 .. 5 with the overburden being the

same gravelly silt previously encounter~d at the Abutmento

It 1~ therefore recommended that the add1tional 1 to 2 feet

o£ m~terial be completely removed and the tooting tor the }iers

be placed directly on the ledge. If the footings are placed

within the water and not de-watered, then allo'llable bearing

for the ledge would be 10 tons per square foote

Pier No.2: Boring AJ!-24, A B-27and O,,!-42 were

made at the left· and right ends of the. pro'posed .. locatlon of

-5-

Page 10: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

Pier No. 2 at Station 3558+15. the details tor these two

borings ara· shown on Sheet 6 while the transvorse section

and centerline profiles are shown on Sheet' 9. As can be

seen on the deta:tls for these three borings 9 tJ.,i.ere is but

2 to 2.5 feet of overburden at the substruct~e units. Five

teet of ledge was cored in each boring. It was noted that

the percent recovery was low alon~ the left side in Doring

AB-24 and a higher recovery was noted on the right. Since

the channel will be at this proposed led~e elevation, it is

recommended that the substructure for the ~ier be placed

directly on the ledge surfaoe. Allowable bearings for tne

ledge ~urtace would be 10 tons per square foot.

AP.P:tmE.!nt No. ~: Borings AB-25 and AB-26 were made on

the lett and right ends respectively. ot Abutment No. 2at

Station 3558+55. The details for these two borings are shown

on Sheet 6 while the transverse section and centerline profiles

are shown on Sheet 9. 'fu1le the ledge surface was encountered

at approximately the same elevation in both borings, the

bori~gs indicated that there was five to six and one-half

feet of overburden being classified as a gray silty sand

and roeks. Abutment No. 2 is within the present stream area

and it is proposed to fill in the stream to the e.ast of the

Abutment. A maximum fill is proposed· along centerline behind

the Abutment of 16.3 ~eet. Since it will ·be more economical

to place th~ approach fill and drive piles, steel or

cast-in-place concrete piles driven to the ledge surface

are recommended. Twenty (20) and twenty-five (25) tons pile

loads could be used. Granular't111 must be used in the river.

-6-

Page 11: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

'i:;he rlght a..D.d left; ends respectiv'ely, of the propoB03d location

of Abutmel~ rlo. 1. ~he details for these two borings are

shown on Sheet 4 while the transverse section and centerline

profj.les are shown OD. Sheet 9. Boring AD-I? encountered the

ledge surface at ele'l'Tation 119.9 overlain by four fee"c of

pebbly sands.. ITO\'le"rcr, Bor:l,nE; .'\:8-16 encountered an eight

feot deposit or soft bro\~ silty clay overlying t~ree £eet

of silty sands j~ turn resting Oll the ledge surface at elevation

11;$.;. The finisbed grade elevation of the·sollth bound

lane 1s at elevation 136.3 and the present ground surface

'at elevati.on 124 or a fill of t"/elva feet is proposed behind

the abutment. l lh5.s depooit of soft bro\YD. clay will cause

some minor settlement. This brown clay is underlian by a

gre:y clay with black spots ~t3 noted in the Boring AB-15

at kier No.1. This g~ay clay is soft and should be expected

to undergo some settlement as well as being troublesome sinco

it~ angle of rapose,~xistingtisprobably near 5:1 although

comr-utfiJd'ralu!f;;B !ire of :3; 1. This the front of the a'bt4tment

may be diff'icu.lt; to stabilize and it may be more economical

to excavate the material along the ri~t side from an area

twenty feet Gn either side of centerline from ~ier 1 to

a point 25 feet behind the Abutment and replace the material

with a granular fill. In this manner" a more stable slope

could be maintained. ~urther details are included under

"Drainage Channel '1 :1n this report. It is therefore recommended

that since it will 0<1 more economical to place the approach

-7-

Page 12: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

fill first, piles are recommended to support the substructure

ot the Abutment. Steel or cast-tn-place concrete piles would

be recommended. Because of a fluctuation of the ground water

table, wooden piles are not recommended.

:E:ier No,_, 1: Borings AB-14 and AB-15 were made to the

lett and right ends, respectively, of the proposed location

ot·~ier No.1. The d~tai16 for these two borings are shown

on Sheet 4 ~1le the t~ansverse section and centerline

profiles are sllownon Sheet 9. Ledge was encountered 011

the lett side at elevation 115.3 witu ~ teet ot medium density

pebbly sands. On the right side, however. the ledge surtace

again d:r,opped down to elevation 108.3 with the same gray'

silty clay being encountere~only the. deposit was l~ teet

. thick with the top four feat being partly weathered. Five (5)

feet of pebbly sands and gravelly silts were noted to lie

between the ledge surface in the clay. The proposed elevation

of the drainage channel 1s at elevation 114; but since ledge

was encountered in Boring AB-14 at 115.3, it is believed

sUfficient flow would be secured it the 'overburden was stripped

to t'his elevation. Since excavation tor the channel will

be at ledge on the left and but seven teet deeper oathe right side, it is believed that the tooting should be

placed directly on the ledge surface. ~e difference in

elevations of the ledge may require some structural ledge

excavation•

.r1er No.2: BoriD~s AB-20 and AB-2l were made on

the right and lett ends, resp.ectivell't ot the proposed

location of ~ier No. 2. ~he details for these two borings

are shownoD Sheet 5 \11hile the transverse sections and centerline

Page 13: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

" .;. ....., ~ -, '-

profiles are shown on Sheet 9. The ledge surface encountered

in these two borings more nearly coincided with the ledge

surface encountered at Boring AB-15 with the elevations at

1080 2 and l06D9~ respectively. The stream elevation was

at 121.4 this spring and the proposed channel elevation is

at 114. As c~ be seen on the transverse sections, gray

silty clay overlies the granular soils in both these borings

and since the ground surtace is in tho vicinity of elevation

115. it would take but ei~~t teet to get down to the ledge

surface. Since the flow of water will be increased and

these soils are seourable, it is believed that inSUfficient

thickness of cover exists for the use of piles. It is

rec~mmended that the eight feet of soil be excavated and the

footing placed directly on the ledge surface. Allowable

bearings values for the ledge would be ten tons per square

foot.

~butment No.2: Borings AB-22 and AB-23 were m':lde on·

the lett and right ends, respectively, of the proposed location

of Abutment No.2. The details for these two bor~s are

shown on Sheets 5 and the transverse sections and centerline

profiles are shown on Sheet 9. ~h1s proposed locat1on or

the Abutment is within the existing stream area and two to

three feet of granular soils were noted to overlie ~he ledge

surtace. At tAe time of the borings there was ten teet of

water above the bottom or the stream bed. It 1s proposed

to place a fill along centerline to the east or the abunent

to elevation 136.~. Since the ground stream bed is at

elevation 111 to 112. this means a fill of twenty-four to

twenty-f'.-.:~re teet is propo'sed. It therefore, appears more

-9-

Page 14: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

economical to place the approach till and drive piles through

the fill into the shallow ledge surface. Steel or east­

in-place oono~ete piles would be recommended. The approaoh

fill placed in water should be aa4e-. with free draining

materials. Wooden piles are not recommended.

Drainage Channel: It is proposed to relooate the streaa

between the two sets of ~iers on each bridge. As can be

seen on Oheet 8. the cross section area ~~ the south bound

lane is substantially larger than the cross sectional area

of the stream along the north bound lane. The mE.dtimum depth

ot the stream bed along the south bound lane is at elevation

108. It is proposed to construct a new drainage ohannel

near elevation 114. riers 1 and 2 would be constructed .

within the channel area and the baokslopes ot 'both the. tills ..'-.

extending away from the footings such that earth pressures

do not build up against the bases. Since a good portion of

the.drainage channel will be within the west bank of the

present river, an additional boring was made along the

proposed centerline to the left of ~ier No.1" on the south

bound lane and to the right ot l-'ier No. 2 on the north bound

lane. These borings indicated that to the left ot the south

bound lane the ledge elevation was at high ot elevation 115.3

with the overburden a granular silty sand. It is believed that

since the stream elevation on the north bound centerline is

presently well above elevation 115. sufficient flow per

cross sectional area could be recorded it the overburden

1s cleared oft to the ledge surtace or to elevation 114.

Between the south bound and the north bound lanes.

excavation should encounter a layer ot clay underlaiD by a

dense density gravelly silt. The Clay deposit is weathered

-10-

Page 15: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

or brown colored and or medium consistency near the surtace.

With depth, however, black spots with blue clay indicate

a sensitive material. This was confirmed when water contents

of this material were found to be at the liquid limit of

the Boil. Since the liquid limit is defined as the water

content above which a soil will act as a liquid if disturbed

(remoulded), the slopes of the material may cause diffi~u1t7.

On the present ~ross sectional areas ot the stream on

Sheet 8, the slopes sUbmerged were observed to be 1:1, 2:1,

and 5:1. the 1:1 and 2:1 slopes are believed to be the

gravelly silt with rocks which lie on the surface where as

the 5:1 slope is of the sott clay. A 2:1 submerged slope

would be recommended for the granular silt and design wise,

a ,:1 for the clay would have appeared satisfactory had

not the c~oss sections been made. Fortunately, only a smail

amount of this material lies within the highway fill sections

under the sO\1th bound lane, and thus it is believed the

western slope between the two centerlines can be SUbstantially

flattened without materially effactlng the highways.

A furthe~_?~rf1cUlt7 o~ this project will be the

suspension of the clays in the stream flowing downs'tream

where four miles below the crossing, is a secondary water

source for the town of Hampden. ~~e silt size particles

should not cuase any d1fficu~ties. The Shallow ledge surface

downstream together with a dry summer would minimize all

dis'turbances.

SUMMARY

It is proposed to complete a drainage channel on the

western bank of the existing stream and construct the

-11-

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--' ..

approach till on the easterly side within the present stream

area. The new channel ~oss sectional area will be slightly

larger than the existing cross sectional area at the north

bowid lane. Severe scour at depth should not occur since

ledge outcrops were noted within the stream bed but a short

distance downstream from the proposed crossing.

A deposit of medium consistency changing to so~t consistency .

clay was noted to extend along the right side of the

Abui;ment 1 and Pier 1 on the south bound lane. Since this

ma~erial is well above the proposed excavation grade and

a fill: of twelve feet is proposed behind the abutment, it

is recommended that the clay material 'be removed

completely £rom within the Abutment and r~er location prior

to ciompletion of the approach till. In this manner, once

the drainage channel is excavated, the ·back slopes should

be stable. Since the ledge surface was noted to lie

above elevation 115 to the· left of the south bound lane,

it is recommended that the overburden be stripped and the

channel placed directly on this ledge surface. ihis ledge

surface was SUbstantially lower than the eXisting bottom

of the stream bed as noted (~long the north bound lane· as

shown on Sheet 8.

Between the south bound and north bound lanes, excavation

for the drainage channel on une west bank of the present

stream should encounter blue soft clay. It is recommended

that this excavated material not be allowed to be

stockpiled on the ~est ot the channel since this would

induce shearing of "the clay into the excavated channel. The

granular s01ls should remain on a 2:1 submerged slope, but

-12..·

Page 17: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

the soft clay tends to remain on a 5:1 slope. Fortunately.

most or the soft clay 1s between the two lines and thus the

channel can be substantially widened between lanes without

effecting the highwa~or substructure units.

Since fills are proposed behind the two Abutments -of

_twelve and over 'twen'ty-tour teet, it is believed it will be

more economical to place the approach tills and then drive

piles thrOUgh 'the fills into the underlying soils penetrating

directly on the ledge ,surface. Steel or cast-in-place

concrete piles would be recommended with an allowable pile

load of twenty to t_nt1-five tons.

Since the two piers on both bridges would require but

shallow excavati~n to reach the le~ge surface, it is

recommended that the substructure tor the piers be placed

directly on 'the ledge surface. The water is five to ten

feet deep and these footings may be placed directly on the

ledge surface without de-water~. The~e is insufficient

cover at the proposed pier locations for piles. Some

difficulty should be anticipated along the south bound lane

at .k-ier No. I due to a change in ledge elevations. Allowable

values for the ledge surface would be ten tons per square

foot. If the ledge is exposed and round to be sound, the

allowable values could be increased to fifteen tons per

square foot.

Respectfu117 yours,

~/IIJ--¥-+-._Frederi Boyce, Jr.Soils Engineer

FMB:jr

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.._-------------_._---

#SHeET /

BORING NOTES LOG SHEETS DETAIL SHEETS

1. All samples and vanes are madeahead of casing.

2. Scales and. casing size IlS notedon drawing8.

3. Ground water table indicated thu8'

4. Number of blow. of 2751 hammerfalling 18 inches required to driveextra heavy casing one foot thus I

Il~al)

5. Location and designation of "dry"eampl es taken in S&H sampler ,*12908indioated thus:

6. Location and designation of "dry"samples taken in 211 O.D. 16 gaoseamless tubing indicated thus:

C})H-O-C-------II7. Looation end designation of "dry"

samples tnken in Ji" O.D. 16 ~.seamless tubing indicated thus:

8. Looation and designation of washsamples indicated thul.

9. Unsuocessful attempts to secure drysample indicated thus, followed bytype of sampler:

10. Looation of field vane test indicatedthUI: 00

11. Number of blows of 275* hammer falling 0 II15" required to drive spoon or tubing 20 f------'__,.

one foot indicated thus:- (Graphical)

12. Sampling spoon or seaml.s. tubingdriven by statio weight of drillrods and 2751 hammer indioated thus~

13. Ji" OpD. "dry" samples taken ,...1thphton sampler.

14. Natural water oontents, given as __ I Iperoent of dry weight are indioated 31%200-- ----:-Jthus:

Graphical

15. Bottom of boring indioated thus:I116. Refusal of drill rods or ORsing in-

tiioated thus:

11. Peroent recovery of rock oore bydiamond bit thus:

__ ----------------------------------.......1

Page 19: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

'.

\,-'\ .'\,

\\

'.\','

I, ,\'<,.,,'

r

Shea.r Notes:

1. Field vane shear strengths indicated thus r

2. Laboratory vane shear stren~ths indicated thus:

J. One half unoonf'inpd ooml'll'8soive stren~h8 indicatedthus: r

4. Strengths bey-ond range of '1)lot indicated 8,t righted~e of nlot by numerical vR1ues and eyobo1e thus:

5. Field vane shear strengths in e~ce.8 of ca~aoity

of equi~ment indicated thuI:

6. " Laboratory vane shear strengths in exoeu of

Ca.UR,City of equlnr.lent (1.0 T/sf) indicated thU8:

7. Field ~ane shear strengths in eycess of eanacityof eq'.l1.uroent and beyond range of '1)lot bdt eated .atright edge of ~]ot thus:

8. Laboratory VAne fthe8r strength in excess ofca~acity of equinment (l.OT/sf) and beyondrange ot ~lot indicated at right edge ot ulot thus:

Water Content Note.:

1. Natural waterc~ntents, ~l"n as nercent of dr,rwei~t. are indice.ted thus:

2. Plastic and liquid limite are iJ1,UCRtsd thus:

j. Ignition 10ssee are given a8 '1)~roent of dryweight.

•x

o

1.50(~

l.oo(+)X

o

~-- -x

1, /~ ••

,,'

Page 20: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas
Page 21: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

DRIVING RESISTA NCE. (BlowslFtJ /

BORING NO. Afi-/Z (~Cosing)Sto*3'~t=78 / 7..::>-/L.T fib /V8L

:> 20 40 60

1<

1/

DRIVING RESISTANCE(BlowsIFt)

BORING NO. AB-/t2t .~ gi"Casing)Sto.3.5':56 -r86 /~.5:Lr~ /\/BL.

o 20 ~. 00

£1 /2. .!,/

/0 :-+,,-f--i,~+f.-"++-+++-+-f-Hf-+4-+-+-I-+++++++-+-+-I-H-H-++-++-H

//.5 /

r- c:

2L71::tl""'tt/:ttt~~t:tI::t::::tt!!h.~~~~~ ..~~w..u~.r ~~ IL r~

//.5

\ I".k. '7

'\

/OF. ,.

)

12([)

20

~ r'"r+-t-+-t-t-+-t-+-t+++-+-t-l--t-f-Hf+-+-t-+++++++H-f--+-I--+-!-+-l-l

/C. #

.. '"

I

I -I

I ., I

I

iI

II I i I I

I

I . I i I iii i I I

Maine State Highway CommissionDETAILED SOIL STRATIFICATIONa

CONSISTENCY DATA ~BORING NO(S) A~- /4. /-c /~<!I/7 ~

L.A~"':J7 ~£/"'--'A//H/-:jR/.rI_F~

..L~~A/?~V£/1/ /N/L::..~/A/c ~

Scole:I"=5' A j ;c::::;c:;/

Soils Engineering Lab. ' -'U. of M.

Page 22: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas
Page 23: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

DRIVING RESISTA NeE( Blows / Ft. )

BORING NO.AB-24Sta..3£5Br//

~ 20

DRIVING RESISTANCE(Blows/Ft) /"

BORING NO.AB-2Z (22 Casing)-Sto. 3.,£5&7=/9 /SRT~ /VaL.. P/e:-,RNo·.2

o ~~) 40 60I I I ''1-++-++-t+++t-t+++HH++HH-+++i-++-t-H-t-+-t-H-+-t-t-H ,

// ~ . s'

1 !

1£/ v ..-:g

\ v v

! ! ;

I i I, '

/0 ~: ,...j

~ i !

\' i II i iI

, i

//( .I"! D

1\

/ /-.5 Ic /

i I ~.:!'I+-++++++++-++++++++++++++++++++-++++++++~~I"I~I'I'~;I>,

... ...

.ii\i

'} }Sll} '116

1/5-

Ii

--"

~I J :<

I'

IlEI. '.-:I.IO,I"il

,I

j. 'I' )'IAl / /; ~

--It-+++-+++-++t-t-+-H-t--<I-+-+-!--+-H-++-+-+++++++-++--!-++-4+{I

, i

, ! ' ! ',

II

I' I IillI II I I I

H-t-t-'r-t--"t-t-t-+-t-+-t-t-t---t-t-+t-+-t+-t-+t+--+-++-++L+-l_'--~--+-l-fiii I I I I

I ! I i II I i ~ ,I ,!

H-i +--,t+-t-+-t-+-+++--+--+--+--+-+-+--++++++++-+++++++++-+-+-++-+1I I I ' I I I 1 I

I I

Ii I II II i ' I i I

i

i, I I I

I II ! iiii

Ilii I Iii'Ul;lliiliiL i I II j~4t+Hlii!j I,r l !, I' Iii! i,l i II

I 1 • l j iIi ! I I !! ' i ~ l' I 1 i' 'I' I I' I I II ! i I . :, '_' . L !, \ iii I ! 1 i, ' I, +-++', ' i i \

! " tt I' '!' -rr, .;-- . ', i ,I i I I, ' iiI 1 i !, Iii i I I 1 Iii! !i I ! III i I ill ill II! I I!T

I 'I i 'I

i I

II

I ': ! !! ! " I! I, I I:

j'l-+-'-+-t-I-+-+-+-+-+-H--i, , !! I !! I 'I 1, i'!' ',i' Ii', ' I

i I! I ii' i' ! !! ,i 'i

Maine State Highway CommissionDETAILED SOIL STRATIFICATION

CONStSTE~gPJ~ACL3_43" l1~::~;%§f~~3~~~£;V I/VZZi?S7A7e m

ISCale: ,Ii'= 5' do"..."/ /90/

ISoils Engineering Lab. r U. of M

Page 24: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

Sheet No.7

N

Note:

L edye Loced·,cmsB Q.1ed Oh Ai,. Pho'f'o Ihi'eJ-I'H!'fQtiohS

SOUADABSCOOK RIVER

EAST BRANCH

LEDGE LOCATIONS

Scale: r= 1000' Ap,.iI FI./

(/. ", M.

Page 25: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

f.50 ,..3558

NORTH80UND t.

r50 1"50

~~~ _~~ ~ SOUTH..§f?-f!,,!q__~_

.,j

=­~:_-

~j.~r-----'~ I ~~.JtR R~·"""V R-'~

R ~.

_lOS

MAINE STATE HIGHWAY COMMISSION

SOUADAB5COOX RIVER

EAST BRANCH BR/Oe£

PROFII.ENORTHBOUND t SOUTHBOUNO G..5cQ/e: #ONZOl'rf'Q! r'JO'

Apl-il/16/J/e,,""icQ/ /".J'

~oi!.$ Eh9;A~el"i"9LOb. I/. or /If.

Page 26: SUBSTRUCTURE - Maine · SUbstructure units within this bridge loeat~on.-2-'The shallow ledge sUI'face which WEI.S mentioned 'GO lie in this s1;rearr, soutihorly of the crossing \lTas

@CB-43."\~ ~ . >...•,,,.,~

Sheet No. 9

,

SHEET I TOTALNO. SHEETS

I:: ~... ~

MAINE

PIER #2

lNB

B. P. R. I STATE I PROJECT NUMBERREG. NO.

~~----~~~._~--~

-~--~~--~~-~-~-----~-~­....-..---..---------~~---~~~~--~-----"-"'--'~~---­

~------~---~~----~----~

SECTIONS

110

115

120

125

130

100

105

lNB

I

TRANSVERSE

ABUTMENT #. I

t.. 58

I

N

)(~o~.t.

'\t.. '~I(

'b

!v~\~~

Sout

NB t. Abut. # 2_. 3558 + 55 i

&\9~

S'J~~~

<::>(J

~B-J

QAB-IS

OAB-19

NB Cl. Abut. # ISta. 3557 + 25 ± • B.M. ELEVATION 127.01 ~ __ ':"'" ~ _

NB t. Pier # I \ CB _42\-JSta. 3557 t 62 ±

B '- Pier ** I

Northbound Lane

S8 t. Abut. =** I

BRIDGE NO.SURVEY­PLOT-

STATE HIGHWAY COMMISSIONBRIDGE DIVISION

DESIGN­TRACE­CHECK-

--~~~~ -- ......----- - - - - -~

~~

--~-~--~------~~--­~~--~~~---~~-~~-­

--~--~~--------~_.~-~-~~---~~--_.----._...-.-----'--"-----------~~-----------------,-------_._-~------

HAMPDEN

PENOBSCOT COUNTY

IN THE TOWN OF

SOUADABSCOOK STREAM BRIDGEEAST

----~----~~~::::::::::::::.~-:::::::::.-...------

lNB

- -~.~~=--...~~~~~~~::::::::::::=::~::::~

_. _. "_. , -~- - ----

I ••,...~ ...._.. • •• - I

100

115

125

120

130

110

105

lNB

I

WATER ELEVATION

SPRING 1961, 121.421

HIGH WATER ELEVATION

1936 a 1955, 130.51

PIER # I .. ----,

-..;;I"::':::':':: ;:".!:::: :;:.:.\'.'~::': •:"~1.~:I-··.:".:.::: "~:--;;~I~:::::"'::;......: ; : :: ., ~ .' .: .

~:.,</:~.;i~t~ :f~~}\;j~}i~t1~~r~{}R{:~~~~ {1~(~}1~ i~t~m~~~ !jiJ}[

. GR" .' '•.•.. DENSE RAY ESIDUAL. .:;:':::: ;:; j:;':' "j

. ·.::";":tGRAVEL.LY .sILT ".:~.).-=w \. R.. ::::::::.: ~ '. ······1···:·:·;····;~:·:7/:", •••.;:.~.:•••• :.:.;;::.::.:••.:";:.••e,,::.:..:.;. :~: ::.::.:::-::..... l-........•~ .. ~ : ' .. ::"::~)l....._•• '!"'.;."_•• " .:•• _ ••_0":. '",.".::: __ ••••••~ y

AB-19

t. 5B

II ~A~B~-~9;;;r;;;;;;;;;;::::::j

"\

.oi"

3558

3558

NORTHBOUND LANE

,~·.I·,·,'!"" '. DENSE. GRAy...." - . ''f,,,d,'..::'C.'~:::~.!;::~~.:~ ::: ;:~. ,.. ~__ .·~~'·~k·-~~~~,;:~:{:~'''~':::~':'::.~ .; RESIDUAl- :.: ,;AB- 25• • ..... 0 •••••••• '.. eo t:-, >"'l;-"'~'~"~;~-' 0i.~::~)~:}f '(~~C:X.r.~.~~,~-:~~~:;}: AB- 24=-- ;:;},;i.·'C..~A

{?:}~/.:.~~:~ :~:;://JU~:J~?(rr:;::~:~<.;-,------=.··"X: ?+r:;;;W:K:r~; ;~m;: ~f!\;1'':JWJ:m~f;j\~JW) j!}~

3551

3557

PROFILES

125

110

110

115

100

120

100

105

105

120

115

125

-----------~~---

.~-~----~­----~~~-

3558

3558

CENTERLINE

AB-15

SOUTHBOUND LANE

3557

3557

FOUNDATION SURVEY

SHEET OF AUGUSTA, MAINEc. B. co .. NO. 379 24027