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GEOTECHNICAL DATA REPORT
Transcript of GEOTECHNICAL DATA REPORT
| NEVADA DEPARTMENT OF TRANSPORTATION | MATERIALS DIVISION |
| GEOTECHNICAL SECTION | 1263 S STEWART ST, CARSON CITY, NEVADA 89712 |
GEOTECHNICAL DATA REPORT
I-80/SR439 RADIO TOWER WASHOE COUNTY, NEVADA
DECEMBER 2020
STATE OF NEVADA
DEPARTMENT OF TRANSPORTATION
MATERIALS DIVISION
GEOTECHNICAL SECTION
GEOTECHNICAL DATA REPORT
I-80/SR439 RADIO TOWER
WASHOE COUNTY, NEVADA
DECEMBER 2020
Prepared by:
Kyle Jermstad, P.E. Principal Geotechnical Engineer
Reviewed by:
Jeff Palmer, P.E. Principal Geotechnical Engineer
Reviewed by:
Mike Griswold, P.E. Chief Geotechnical Engineer
Contents
Introduction ................................................................................................................ 1
1.1 Project Description ............................................................................................................. 1
1.2 Purpose and Scope of Work ............................................................................................... 1
2. Field Exploration and Laboratory Testing .......................................................... 2
2.1 Field Exploration ................................................................................................................. 2
2.2 Geotechnical Laboratory Testing........................................................................................ 2
3. Site and Subsurface Conditions ......................................................................... 3
3.1 Site Conditions.................................................................................................................... 3
3.2 Subsurface Conditions ....................................................................................................... 3
3.2.1 General Geology and Faulting ......................................................................................... 3
3.2.2 Subsurface Materials ....................................................................................................... 3
3.2.3 Groundwater Conditions .................................................................................................. 3
4. References ........................................................................................................ 4
5. Limitations .......................................................................................................... 5
Appendices A Figures
B Logs of Borings
C Laboratory Test Results
D Sample Photographs
I-80/SR439 Radio Tower Geotechnical Data Report 1
Introduction
1.1 Project Description
The Nevada Department of Transportation (NDOT) plans to construct a radio tower and associated fiber
hut near the intersection of Interstate 80 (I-80) and State Route 439 (SR 439), east of the town Patrick.
This geotechnical data report presents the information obtained from our geotechnical exploration for the
proposed tower.
The project Vicinity Map and Exploration Map are shown in Appendix A on Figures A-1 and A-2,
respectively.
1.2 Purpose and Scope of Work
The purpose of this investigation is to provide subsurface data for the project site from a geotechnical
perspective, for the proposed tower foundation. The main objectives of the investigation were to
characterize the subsurface materials, document our findings in this report. The investigation was
conducted in accordance with American Association of State Highway and Traffic Administration
(AASHTO) and Federal Highway Administration (FHWA) guidelines.
The scope of our geotechnical investigation includes the following:
A review of published geologic and geotechnical information pertaining to the site vicinity;
A field exploration consisting of drilling one boring to a maximum depth of approximately 40 feet
below ground surface (bgs) to obtain information about the subsurface conditions for the
proposed tower foundation in the geotechnical data report;
Performing geotechnical laboratory testing on select soil samples collected from the borings; and
Preparation of this report.
I-80/SR439 Radio Tower Geotechnical Data Report 2
2. Field Exploration and Laboratory Testing
2.1 Field Exploration
One boring was drilled on December 2, 2020 at the approximate location shown on the Exploration Map
to a maximum depth of approximately 40 feet bgs. The boring was drilled utilizing a truck-mounted
Diedrich D-120 drill rig equipped with six-inch diameter hollow stem augers. Samples were collected
using Standard Penetration Test (SPT) samplers driven by an automatic hammer with a weight of 140
pounds and a drop of 30 inches.
The number of blows required to drive the sampler were recorded for each 6-inch interval of the 18-inch
drive. The cumulative blow count for the bottom 12 inches of drive is presented in the boring logs. The
blow counts presented in the logs are uncorrected and are shown as they were recorded in the field. Both
the samples and drill cuttings were visually classified in the field based on the Unified Soil Classification
System (USCS) in general accordance with ASTM D2488.
The subsurface conditions encountered are summarized in Section 3.2. Logs of the borings were
prepared based on the field logging and the results of laboratory testing in general accordance with ASTM
D2487. The boring logs are presented in Appendix B. A previous boring by NDOT was drilled on March
14, 2018 at the approximate location shown on the Exploration Map and the logs are included as
supplemental information in Appendix B.
2.2 Geotechnical Laboratory Testing
Laboratory testing was conducted on select soil samples recovered during the field exploration. Tests
conducted include the following:
Method of Test Sieve Analysis of Coarse and Fine Aggregate (Nev. T206);
Method of Test for Determining the Liquid Limit, Plastic Limit, and Plasticity Index of Soil (Nev.
T210, T211, and T212);
Geotechnical laboratory test results are presented in Appendix C.
I-80/SR439 Radio Tower Geotechnical Data Report 3
3. Site and Subsurface Conditions
3.1 Site Conditions
The site is located approximately 1 mile west of the intersection of I-80 and SR 439 in Washoe County,
Nevada. At the time of our exploration, the surrounding topography consisted of Truckee River floodplain
and industrial properties. Within the project limits the ground surface consisted of the highway
embankment fill slope with an approximate 2H:1V inclination. The boring location was located beyond the
toe of the fill slope in native soils vegetated with sagebrush. To the south of NDOT right of way fence, a
stockpile approximately 140-feet long by 30-feet wide was present at the time of our exploration. The
height of the stockpile varied from approximately 10-feet tall at the west end to 4-feet tall at the east end.
Underground utilities were located within the project site for the purposes of this exploration.
3.2 Subsurface Conditions
3.2.1 General Geology and Faulting
The site is located within the Basin and Range geomorphic province, in the Truckee River canyon north of
the Virginia Range and south of Pah Rah Range. The site area is mapped as being comprised of
Quaternary alluvium. The nearest active fault with historic movement (last 150 years) is the Olinghouse
fault zone, located approximately 1½ miles to the north. Other active faults nearby include the Rainbow
Mountain fault zone located approximately 45 miles to the east.
3.2.2 Subsurface Materials
The results of our field exploration and laboratory analyses indicate approximately 7 feet of very loose to
very dense light brown silty SAND (SM) with gravel and boulders. Beneath the silty SAND, light brown
SAND (SP-SM) was encountered to a depth of approximately 16½ feet bgs. Brown sandy lean CLAY (CL)
was encountered beneath the SAND to a depth of approximately 26 feet bgs. Beneath the CLAY, brown
clayey SAND (SC) was encountered to a depth of approximately 31 feet bgs, underlain by red-brown
SAND (SC-SW) the maximum depth explored, approximately 40 feet bgs.
3.2.3 Groundwater Conditions
Groundwater was encountered at 31 feet bgs at the time of our exploration.
I-80/SR439 Radio Tower Geotechnical Data Report 4
4. References
American Association of State Highway and Transportation Officials (AASHTO), 2017, “LRFD Bridge
Design Specifications, 8th Edition”
Kakata, K. John, et al, 1982, “Quaternary Fault Map of the Basin and Range and Rio Grande Rift
Provinces, Western United States, Department of the Interior United States Geological Survey”
Loehr, Erik, et al, 2016, “FHWA NHI-16-072 Geotechnical Site Characterization”
Mayne, W. Paul, et al, 2002, “FHWA-NHI-01-031 Subsurface Investigation Manual”
Nevada Department of Transportation (NDOT), 2008, “Structures Manual”
Sabatini, P.J., et al, 2002, “FHWA-IF-02-034 Evaluation of Soil and Rock Properties”
Stewart, John H., and Carlson, John E., 1978, “Geologic map of Nevada, Nevada Bureau of Mines and
Geology, scale 1:500,00.”
U.S. Geologic Survey, October 8, 2019, U.S. Seismic Design Maps,
https://earthquake.usgs.gov/ws/designmaps/
I-80/SR439 Radio Tower Geotechnical Data Report 5
5. Limitations
This report has been prepared by NDOT Geotechnical Section under the supervision of those whose
signatures appear herein. The interpretation of data, findings, and recommendations presented in this
report were developed from our geotechnical investigation.
If the proposed project is modified or relocated, or if the subsurface conditions found during construction
differ from those described in this report, NDOT Geotechnical Section should be contacted immediately to
assess the new information or changed conditions and determine if our recommendations need revision.
Appendix A
Figures
Figure A-1 Vicinity Map
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure A-2 Exploration Map
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Appendix B
Logs of Borings
KEY TO BORING LOGS
USCS GROUP TYPICAL SOIL DESCRIPTION
GW GP GC SW SP SM SC ML
CL OL
MH CH OH CS PT
Well graded gravels, gravel-sand mixtures, little o r no fines Poorly graded gravels, gravel-sand mixtures, little or no fines Clayey gravels, poorly graded gravel-sand-clay mixt ures Well graded sands, gravelly sands, little or no fin es Poorly graded sands, gravelly sands, little or no f ines Silty sands, poorly graded sand-silt mixtures Clayey sands, poorly graded sand-clay mixtures Inorganic silts and very fine sands, rock flour, si lty or clayey fine sands with slight plasticity Inorganic clays of low to medium plasticity, gravel ly clays, sandy clays, silty clays, lean clays Organic silts and organic silt-clays of low plastic ity Inorganic silts, micaceous or diatomaceous fine san dy or silty soils, elastic silts Inorganic clays of high plasticity, fat clays Organic clays of medium to high plasticity Claystone/Siltstone Peat and other highly organic soils
MOISTURE CONDITION CRITERIA SOIL CEMENTATION CRI TERIA
Description Criteria Description Criteria Dry Absence of moisture, dusty, Weak Crumbles o r breaks with handling or little dry to touch. finger pressure. Moist Damp, no visible free water. Moderate Crum bles or breaks with considerable finger pressure Wet Visible free water, usually below
groundwater tab le. Strong Won ’t break or crumble w/finger pressure
Groundwater Elevation Symbols
Blow counts on Calif. Modified
Sampler (N CMS) can be converted
to NSPT by: (NCMS)(0.62) = NSPT
Blow counts from Automatic Hammer can be converted to Standard SPT N60
by: Rig # 1627: (N SPT)(1.2) =N60 Rig # 1082: (N SPT)(1.45) =N60
TEST ABBREVIATIONS
CD CONSOLIDATED DRAINED CH CHEMICAL (CORROSIVENESS) CM COMPACTION CU CONSOLIDATED UNDRAINED D DISPERSIVE SOILS DS DIRECT SHEAR E EXPANSIVE SOIL G SPECIFIC GRAVITY H HYDROMETER HC HYDRO-COLLAPSE K PERMEABILITY
O ORGANIC CONTENT OC CONSOLIDATION PI PLASTICITY INDEX RQD ROCK QUALITY DESIGNATION RV R-VALUE S SIEVE ANALYSIS SL SHRINKAGE LIMIT U UNCONFINED COMPRESSION UU UNCONSOLIDATED UNDRAINED UW UNIT WEIGHT W MOISTURE CONTENT
SAMPLER NOTATION
CMS CALIF. MODIFIED SAMPLER 1
CPT CONE PENETRATION TEST CS CONTINUOUS SAMPLER2
CSS CALIFORNIA SPLIT SPOON P PUSHED (NOT DRIVEN) PB PITCHER BARREL RC ROCK CORE3
SH SHELBY TUBE 4
SPT STANDARD PENETRATION TEST TP TEST PIT 1- I.D.= 2.421 inch
2- I.D.=3.228 inch with tube; 3.50 inch w/o tube 3- NXB I.D.= 1.875 inch
4- I.D.= 2.875 inch
SOIL COLOR DESIGNATIONS ARE FROM THE MUNSELL SOIL C OLOR CHART.
EXAMPLE: (7.5 YR 5/3) BROWN
Revised June 2018
PARTICLE SIZE LIMITS CLAY SILT SAND GRAVEL COBBLES BOULDERS
FINE MEDIUM COARSE FINE COARSE
.002 mm #200 #40 #10 #4 ¾ inch 3 inch 12 inch
STANDARD PENETRATION CLASSIFICATION * GRANULAR SOIL CLAYEY SOIL
BLOWS/FT DENSITY BLOWS/FT CONSISTENCY
0 - 4
5 – 10
11 - 30 31 - 50
OVER 50
VERY LOOSE
LOOSE
MEDIUM DENSE DENSE
VERY DENSE
0 - 1 VERY SOFT
2 - 4 SOFT
5 - 8 MEDIUM STIFF 9 - 15 STIFF
16 - 30 VERY STIFF
31 - 60 HARD OVER 60 VERY HARD
*Standard Penetration Test (N) 140 lb hammer 30-inch free fall on 2-inch O.D. x 1.4 inch I.D. sa mpler.
Top 2 ft very loose
Light brown silty SAND (SM) with gravel, fine-tocoarse-grained sand, fine to coarse subrounded gravel,dry, very dense
Light brown SAND (SP-SM), fine-to medium-grainedsand, trace silt and fine angular gravel, dry, mediumdense
Brown sandy CLAY (CL), medium plasticity, fine-tomedium-grained sand, moist, very stiff
64
53
98
99
100
100 31
Rig chatter 3' -5'Likely smallboulder
Rig chatter 6.5' -7'Likely smallboulder
13
22
20
28
19
2-1
2-2
2-3
2-4
2-5
2-6
1022
Refusal
824
Refusal
71111
81010
91315
5712
23
13
8
7
9
85
DATE
LOCATION
B-2 (US80)
I-80 Radio Tower
12/2/20
12/2/20BORING LOG
E.A. #
BORING 6" HSA
OPERATOR T. Sawin
N/A
N/A
PROJECT
METHOD
39.56686°N
ENGINEER K. Jermstad
119.49949°W
DRILL RIG
LONGITUDE
Diedrich D-120 (1082)
BACKFILLED
Materials Division
Geotechnical Section
1263 S. Stewart St
Carson City, NV 89712
START DATE
END DATE
12/2/2020Yes
Washoe County, NV
SHEET 1 OF 2
HAMMER Automatic
TOTAL DEPTH ft 40GROUND ELEV. ft
START DATE LATITUDE
StandardPenetrationTest
USCS SiltySand
USCSPoorly-gradedSand with Silt
USCS LowPlasticityClay
USCS ClayeySand
USCSWell-gradedSand withClay
SM
AR
T S
OIL
LO
G U
S50
TO
WE
RS
.GP
J N
DO
T S
MA
RT
LO
G 2
018
.10
.10.
GD
T 1
2/10
/20
12/02 ATD
DATE TIME DEPTHft
ELEV.ft
GROUNDWATER LEVEL
31
DE
PT
H(f
t)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
ELE
V.
(ft)
GR
AP
HIC
LOG
% P
AS
SIN
GN
O.4
LIQ
UID
LIM
IT
REMARKSMATERIALDESCRIPTION
PLA
ST
ICIT
YIN
DE
X
BLO
WS
/ 6"
SA
MP
LE N
O.
Unc
orre
cted
N V
alue
Rec
over
y(%
)
TY
PE
% P
AS
SIN
GN
O.2
00
SM
SP-SM
CL
Brown clayey SAND (SC), fine-to medium-grained sand,medium plasticity, moist
Red brown SAND (SW-SC), fine-to coarse-grained sand,wet
Boring terminated at 40 ft BGS, groundwaterencountered at 31 ft BGS
100
100
96
98No samplestaken beneathgroundwatertable
18
43
2-7
2-7shoe
2-8
2-8shoe
3513
51825
79
44
38
9
DATE
LOCATION
B-2 (US80)
I-80 Radio Tower
12/2/20
12/2/20BORING LOG
E.A. #
BORING 6" HSA
OPERATOR T. Sawin
N/A
N/A
PROJECT
METHOD
39.56686°N
ENGINEER K. Jermstad
119.49949°W
DRILL RIG
LONGITUDE
Diedrich D-120 (1082)
BACKFILLED
Materials Division
Geotechnical Section
1263 S. Stewart St
Carson City, NV 89712
START DATE
END DATE
12/2/2020Yes
Washoe County, NV
SHEET 2 OF 2
HAMMER Automatic
TOTAL DEPTH ft 40GROUND ELEV. ft
START DATE LATITUDE
StandardPenetrationTest
USCS SiltySand
USCSPoorly-gradedSand with Silt
USCS LowPlasticityClay
USCS ClayeySand
USCSWell-gradedSand withClay
SM
AR
T S
OIL
LO
G U
S50
TO
WE
RS
.GP
J N
DO
T S
MA
RT
LO
G 2
018
.10
.10.
GD
T 1
2/10
/20
12/02 ATD
DATE TIME DEPTHft
ELEV.ft
GROUNDWATER LEVEL
31
DE
PT
H(f
t)
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
ELE
V.
(ft)
GR
AP
HIC
LOG
% P
AS
SIN
GN
O.4
LIQ
UID
LIM
IT
REMARKSMATERIALDESCRIPTION
PLA
ST
ICIT
YIN
DE
X
BLO
WS
/ 6"
SA
MP
LE N
O.
Unc
orre
cted
N V
alue
Rec
over
y(%
)
TY
PE
% P
AS
SIN
GN
O.2
00
CL
SC
SW-SC
0.50
5.50
7.50
11.00
16.00
22.50
Dietrich 120#1082
sampler coredcobbles andgravels
sampler coredand brokecobbles andgravels
sampler coredand brokecobbles andgravels, keeperpushed 1-footinto samplerrounded cobblesand coarsegravel cuttings
SM
GPGM
SM
GM
SPSM
GP
Gravelled surface treatment
SILTY SAND WITH GRAVEL Dense, dry,tannish brown, red sandstone and blackvesicular gravel
POORLY GRADED GRAVEL WITH SILTAND SAND Very dense, dry, grayish brown,cobbles
SILTY SAND Medium dense, moist, brown
SILTY GRAVEL WITH SAND Very dense,moist, black, cobbles
POORLY GRADED SAND WITH SILT Dense,moist, brown, and mixed colors with minor mica
POORLY GRADED GRAVEL WITH SANDVery dense, moist, grayish black, cobbles
A
B
C
D
E
F
G
H
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
51018
113328
6718
144338
264532
71214
91314
28refusal/4"
20
66
14
86
90
24
26
refusal/4"
80
80
87
73
60
80
87
0
M, S, LL,PL, PI
M, S, LL,PL, PI, Ch
M, S, LL,PL, PI
M, S, LL,PL, PI
M, S
M, S, LL,PL, PI
M, S, LL,PL, PI
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
13.5
15.0
16.5
18.0
19.5
21.0
24.0
24.8
Hollow Stem Auger
Yes
USCSGroupLast
1 footDEPTH
(ft)ELEV.
(ft)
DATE
REMARKSBLOW COUNT
LAB TESTS6 inchIncrements
4258.0
4253.0
4248.0
4243.0
GROUNDWATER LEVEL
EXPLORATION LOG
4263.00 (ft)
LOCATION
BORING
E.A. #
4234.0
GROUND ELEV.
HAMMER DROP SYSTEM
LE 776 + 536 RCallaghanDeitrich 120 #1082Altamirano
5
10
15
20
START DATE
END DATE
JOB DESCRIPTION
5
10
15
20
BACKFILLED
3/14/18
ELEV. ft
3/14/18
TYPE
SAMPLE
Auto
DEPTH ft
DATE
TC-1
DRILLINGMETHOD
Tracy-Clark at I-80
PercentRecov'd
MATERIAL DESCRIPTION
Box Extension
3/14/18 29.00
NO.
STATION
OFFSET
ENGINEER
EQUIPMENT
OPERATOR
3/14/18
SHEET 1 OF 2
NV
_DO
T T
RA
CY
_CLA
RK
SW
WIN
GW
ALL
.GP
J N
EV
AD
A D
OT
FR
OM
PR
OJE
CT
.GD
T
11/1
7/20
26.00
29.20
32.00
34.50
GP
CLML
SM
SP
POORLY GRADED GRAVEL WITH SANDVery dense, moist, grayish black, cobbles
SILTY CLAY WITH SAND Very stiff, wet,brown
SILTY SAND Very dense, saturated, brown
POORLY GRADED SAND WITH GRAVELDense, saturated, dark brown, and mixed colorswith mica
B.O.H.
IA
IB
J
SPT
SPT
SPT
7
2333
1425
46
8
100
100
87
M, S, LL,PL, PIM, S, LL,PL, PI
M, S, LL,PL, PI
28.5
29.0
30.0
33.0
34.5
Hollow Stem Auger
Yes
USCSGroupLast
1 footDEPTH
(ft)ELEV.
(ft)
DATE
REMARKSBLOW COUNT
LAB TESTS6 inchIncrements
4233.0
4228.0
4223.0
4218.0
GROUNDWATER LEVEL
EXPLORATION LOG
4263.00 (ft)
LOCATION
BORING
E.A. #
4234.0
GROUND ELEV.
HAMMER DROP SYSTEM
LE 776 + 536 RCallaghanDeitrich 120 #1082Altamirano
30
35
40
45
START DATE
END DATE
JOB DESCRIPTION
30
35
40
45
BACKFILLED
3/14/18
ELEV. ft
3/14/18
TYPE
SAMPLE
Auto
DEPTH ft
DATE
TC-1
DRILLINGMETHOD
Tracy-Clark at I-80
PercentRecov'd
MATERIAL DESCRIPTION
Box Extension
3/14/18 29.00
NO.
STATION
OFFSET
ENGINEER
EQUIPMENT
OPERATOR
3/14/18
SHEET 2 OF 2
NV
_DO
T T
RA
CY
_CLA
RK
SW
WIN
GW
ALL
.GP
J N
EV
AD
A D
OT
FR
OM
PR
OJE
CT
.GD
T
11/1
7/20
Appendix C
Laboratory Test Results
Appendix D
Sample Photographs
Figure D-1 Sample 2-1 (2.5'-4')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure D-2 Sample 2-2 (5'-7.5')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure D-3 Sample 2-3 (7.5'-9')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure D-4 Sample 2-4 (10'-11.5')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure D-5 Sample 2-5 (15'-16.5')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure D-6 Sample 2-6 (20'-21.5')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure D-7 Sample 2-7 (25'-26.5')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
Figure D-8 Sample 2-8 (30'-31.5')
Location: Washoe County, NV
Project Name: I-80 Radio Tower
EA Number: N/A
1263 South Stewart Street
Carson City, Nevada 89712
Phone: (775) 888-7440
Fax: (775) 888-7201
NEVADA DEPARTMENT OF TRANSPORTATION
Materials Division Geotechnical Section
1263 Stewart St, Carson City, NV 89712