REV06255

• Permit No: C1996083
• IBM Index Class Name: Revision
• Doc Date: 10/18/2002
• Doc Name: Addendum to Geotechnical Data Report - Bruce Park Dam
• From: GEI Consultants, Inc.
• Type & Sequence: TR22
• Media Type: D
• Archive: No

HOLE NO.
GEOLOGICAL LOG OF DRILL HOLE

GEI Consultants, Inc. BL_'oIA
'ROJECT NAME Bruce Park Dam
Middle of PROJECT NO. 99292 SHEET 1 OF 2
.OCATION
GROUND SURFACE ELEV. (FT) +)- 8230 TREND PLUNGE 90
Landslide
)ATE STARTED/FINISHED 11-28-01 / 11-29-01 DRILLED BY Heliport Drilling LOGGED BY ERF
3ROUNDWATER EL. DATE OVERBURDEN DEPTH (FT) 14'5 TOTAL DEP7H (FT) 29.5
NOTES S EE L EGE ND) Q ~
Z a Z >
w
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U O
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n 30
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w r~
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w > ^
^ -_
Z-Zr > t- > u w w w r z r w w y z w
"
ozdz w z V ~ ¢ z o a ~ o z a ~ o:
~~o° ? a ~ ¢ ~ ° = z ~ a
z ~ w ° a

Estimated
failure
surface at
74.5'
bash an
na
recovery
u
H4 4,5 2 1.5 13 3 .8 <.1 H7 44 33

i

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i
i
i
i
i
i
i
i
H-2 5 5 5 14 3 .7 .3 H6 ~ 100 10
i
H7 ~

i

H-3 5 2.5 2.5 12 1 2.5 2.5 H6 ~ 50 50
H7 ~
i

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H4 5 3.8 1.6 19 15 18 <.1 H7 .: 75 32
15 dap lmnt
150ep ~aM
15 Uep+wm
15 Uep pim
Is aeo io~m
Fe.
meManiral
OreakS
H-5
I 5 5
i 5
~ 9 3 3.i
~ 1 HS
I ,;
~~ 100 t0
ENGINEERING AND GEOLOGICAL
DESCRIPTION AND CLASSIFICATION
0.74.5: CLAY -Mostly medium plastic fines, about 15-20 % wid
graded sand and gravel, subangular to subrounded grains, very
stiff, slightly moist, radish brown (CL) [GLACIAL DEPOSITS]
4.5-9.5: CLAY -Mostly medium plastic fines, about 20% medium
grained sand, subangular grains, with less than 5% gravel,
subangular grams. very stiff, slightly mors2, red (CL) tGLAC7AL
DEPOSITS]
6.0-9.5: Increasing sand contenl,30-60 % sand and 20 % gravel at
bottom o/rnterval, wrdety gratled, subangular.
- 7.5: Color change from red to grey.
9.5-14.5: CLAY -Mostly medium plastic fines, with 2-3" layers
having increased gravel content to 30%, very stiff, moist, gray
tan with retl and black streaks. (CL) [GLACIAL DEPOSITS[
-Bottom 1' black with a few small cobbles
14.5-29.5: SANDSTONE -Mostly santl, fine to
[Mesa
- 14.5: Few gravel piews at top of run