PERMFILE119249

• Permit No: C1981071
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 20 ROADS GEOTECHNICAL INVESTIGATIONS
• Media Type: D
• Archive: No

•

C~
J
0 TH13 TH-14
15/I2 ~ 41/12
5 WC=10.7
DD=116
H
W
w 18/12 50/9
LL
= 10 WC=12.7
~ DD=121
4
UC=21750
15
r
20
r
JOB NO. 5664 c
31/12 ~~50/7
16/12 1~7 50/8
~DGS

W
LL
:
a
w
0
OF EXPLORATORY BORINGS
LEGEND, I
© CLAY, STIFF TO VERY STIFF, MOIST TO VERY MOIST, BROWN,
GRAY, GRAVEL TRACE (CL)
CLAY, SILTY, SOFT TO MEDIUM STIFF, MOIST TO VERY MOIST, GRAY,
© BROWN, RUST, MOTTLED (CL-ML)
CLAYSTONE BEDROCK, MEDIUM HARD ITO HARD, BLOCKY, SLIGHTLY MOIST
TO MOIST, BROWN, GRAY, RUST
SANDSTONE BEDROCK, HARD TO VERi HARD, SLIGHTLY MOIST, BROWN,
® LIGHT BROWN
BEDROCK SHALE, VERY HARD, BLOCKY, SLIGHTLY MOIST TO MOIST,
GRAY, DARK GRAY
® WEATFERED BEDROCK, SANDSTONE/CLAYSTGNE, VERY STIFF, VERY MOIST,
BROWN, RUST, GRAY
® IdTERBEDDED BEDROCK, SANDSTONE/CLAYSTONE, MEDIUM HARD TO HARD,
MOIST, GRAY, BROWN
DRIVE SAMPLE. THE SYMBOL 16/12 INDICATES THAT 16 BLOWS OF A 140
POWD HAMMER FALLING 30 INCHES WERE REQUIRED TO DRIVE A 2.5 INCH
O.D. SAMPLER 12 INCHES.
1
INDICATES DEPTH TO WATER MEASLRED 1 DAY AFTER DRILLING.
T INDICATES PRACTICAL DRILL RSG REFUSAL USING A MUDEL CME-45.
I
NOTES:
1. THE BORINGS WERE DRILLED AUGUST 1, 2 AND 3, 1979 USING A 4-INCH
DIAMETER CONTINUOUS FLIGHT POW~R AUGER.
2. THESE LOGS ARE SUBJECT TO THE EXPLANATIONS, LIMITATIONS AND
CONCLUSIONS AS CONTAINED IN THE REPORT.
3. WC INDICATES NATURAL MOISTURE IICQJTENT (X)
DD INDICATES DRY DENSITY (PCFI
UC INDICATES UNCONFINED COMPRESSIVE STRENGTH (PSF)
LL lNDICA TES LIQUID LIMI7 (X)~
PI INDICATES PLASTICITY INDEX (X)
FIG. 9