GEOTECHNICAL REPORT US 95 WIDENING ANN ROAD

Transcription

1 GEOTECHNICAL REPORT US 95 WIDENING ANN ROAD to KYLE CANYON ROAD Package 2 E.A January 212 MATERIALS DIVISION

2 STATE OF NEVADA DEPARTMENT OF TRANSPORTATION MATERIALS DIVISION GEOTECHNICAL SECTION GEOTECHNICAL REPORT US 95 WIDENING ANN ROAD to KYLE CANYON ROAD Package 2 E.A January 212 LAS VEGAS, NEVADA Prepared by: Dana Boomhower Senior Geotechnical Engineer Reviewed by: Jeff Palmer, Ph.D., P.E. Principal Geotechnical Engineer Approved by: Reid Kaiser, P.E. Chief Materials Engineer ii

3 TABLE OF CONTENTS INTRODUCTION...1 General...1 Purpose and Scope...1 PROJECT DESCRIPTION...1 GEOLOGIC CONDITIONS and SEISMICITY...2 FIELD INVESTIGATION...2 LABORATORY ANALYSIS...4 DISCUSSION...5 RECOMMENDATIONS...5 Excavation...5 Foundations...5 Soundwalls...6 REFERENCES...7 APPENDICES APPENDIX A... Project Location Area Map... Borehole Location Sheets APPENDIX B... Boring Log Key... Boring Logs APPENDIX C... Soil Particle Size Distribution Sheets (Gradation Curves)... Consolidation Test Report Sheets... Test Result Summary Sheets iii

4 INTRODUCTION General This report has been prepared for the proposed soundwalls along US 95 between Ann Road and Durango Drive in Las Vegas, Nevada. A site plan for the project is presented as the Project Location Area Map in Appendix A. For a more detailed description, see the construction plans. Purpose and Scope The purpose of this report is to provide information regarding the subsurface soil conditions at the proposed project site. This report also provides geotechnical design recommendations for the structure foundations proposed for this project. The scope of this report consists primarily of geotechnical investigation, analysis, and recommendations for both design and construction. The investigation included gathering information obtained from previous subsurface explorations, soil sampling, and analysis of field and laboratory testing data. This report includes boring logs and summaries of test results from both the field investigations and laboratory testing. These may be found in appendices B and C, respectively. PROJECT DESCRIPTION The project site is located in the city of Las Vegas in Clark County. US 95 runs southeast to northwest at the location of the proposed soundwalls. Preliminary plans indicate the majority of the proposed soundwalls, which total approximately 44 feet, will be designed as concrete cantilever walls on shallow continuous footings. The soundwalls are planned for the east side of US 95 between Ann Road and Durango Drive. 1

5 GEOLOGIC CONDITIONS and SEISMICITY The site is founded primarily in older alluvial fan deposits (Qoa) 1. These deposits are generally tan and light to medium brown clayey sands and sandy clays with some gravel (See Photos 1 and 2). The proposed soundwall locations lie between approximately 236 and 256 feet of elevation and slopes gently downward to the southeast. The site is located approximately 5 miles southwest of the Las Vegas Valley Shear Zone and 8 miles east-northeast of the Keystone thrust fault. 2 These faults are no longer considered active. There are several small compaction fault scarps approximately 2 miles southeast of the site 3. Photos 1 and 2. Soil Samples from Boreholes ASW-2 and ASW-7 FIELD INVESTIGATION The Geotechnical Section conducted subsurface investigations at the proposed project site in June and July of 211. Subsurface soil conditions were explored in the investigation by drilling nineteen boreholes placed near the proposed locations for soundwalls. The approximate location of each borehole is shown on the Borehole Location sheet in Appendix A. Drilling was accomplished with a Diedrich D-12 drill rig equipped for soil sampling, using 6-inch hollow stem auger on boreholes ASW-1 through ASW-19 (See Photo 3). Soil s and standard penetration resistance values (N-Values) were obtained utilizing the Standard Penetration Test () procedure as set forth in AASHTO test number T26. 2

6 Boreholes ASW-1 through ASW-19 were drilled to depths between 6.3 feet and 26.5 feet. Surface elevations were obtained for the borehole locations by surveying from a known elevation point. Groundwater was not encountered during drilling in any of the boreholes. The uncorrected blow counts are shown on the boring logs in Appendix B. All soil s were classified, both visually and using laboratory data, using the Unified Soil Classification System (USCS) described in ASTM test number D2487. Photo 3. Drill Rig Set Up on Borehole ASW-17 3

7 LABORATORY ANALYSIS Laboratory tests were performed on the s collected from the boreholes. The testing program consisted of sieve analyses, moisture and unit weight, Atterberg limits, consolidation tests, and chemical analyses (chlorides, resistivity, and ph). The results of this testing program show that the soils consist primarily of clayey and silty sands and gravels (See Photo 4). Very few s of known volume were taken due to the dense, hard condition of the soils. Dry unit weights from 7 s ranged from 78.2 pounds per cubic foot (pcf) for ASW-8 C1 (sandy lean clay), to pcf for ASW-6 B2 (silty gravel with sand). Further information is presented in the summaries of test results in Appendix C. Photo 4. Soil Sample ASW-7 G (Clayey Gravel with Sand) 4

8 DISCUSSION During drilling of the 19 boreholes, 135 s were attempted. Of these 135 attempted s, 53% of them met with refusal, with no recovery. This indicates very hard, very dense soils, as well as the presence of cobbles and cemented soils (caliche), which are known to exist in the area. The very dense granular soils are well suited for spread footings for soundwalls. Following the field investigation and laboratory testing, the soils were identified as primarily very dense clayey and silty sands and gravels (78%), and medium stiff to very hard clays (22%). Boreholes ASW-1 through ASW-19 were drilled for soundwalls that run along both the northbound and southbound lanes of US 95, between Ann Road and the interchange at CC-215. Liquefaction is unlikely to occur due to soil density, as well as the depth of the water table and low seismic accelerations experienced in the region. RECOMMENDATIONS Excavation All excavation shall be performed in accordance with the NDOT 21 Standard Specifications for Road and Bridge Construction 4. All permanent slopes should be constructed to lie at a maximum of 2:1 (Horiz:Vert) slope. The contractor shall be responsible for all necessary shoring for any excavation and/or construction. Variable site conditions include the possibility of encountering very soft soils, caliche, boulders, or other adverse soil conditions. Foundations The very dense and cemented soils at the site are well suited for shallow foundations, such as spread or strip footings. Spread footings for soundwalls placed in native soil and embankments have a factored bearing resistance 5 of 4 psf (4 ksf). 5

9 Sound Walls The in-situ soil parameters for the sound walls along US 95 are as follows: Cohesion (c) = psf Soil Friction Angle (φ) = 32 Soil Unit Weight (γ)= 11 pcf 6

10 REFERENCES 1. Geologic Map of Clark County, Nevada, Bulletin 62, Plate 1; Nevada Bureau of Mines and Geology, Tectonic Map of Clark County, Nevada; Bulletin 62, Plate 5, Nevada Bureau of Mines, Las Vegas NW Quadrangle Geologic Map; Nevada Bureau of Mines and Geology, 1987, Map 3Dg. 4. Standard Specifications for Road and Bridge Construction, State of Nevada Department of Transportation, AASHTO LRFD Bridge Design Specifications, 5th edition, 21. 7

11 APPENDIX A Project Location Area Map Borehole Location Sheets

12

13 ASW-2 ASW-8 ASW-4 ASW-6 ASW-1 ASW-3 ASW-9 ASW-5 ASW-17 ASW-7 ASW-16 BOREHOLE LOCATIONS

14 APPENDIX B Boring Log Key Boring Logs

15 KEY TO BORING LOGS PARTICLE SIZE LIMITS CLAY SILT SAND GRAVEL COBBLES BOULDERS FINE MEDIUM COARSE FINE COARSE.2 mm #2 #1 ¾ inch 3 inch 12 inch USCS GROUP GW GP GC SW SP SM SC ML CL OL MH CH OH PT TYPICAL SOIL DESCRIPTION Well graded gravels, gravel-sand mixtures, little or no fines Poorly graded gravels, gravel-sand mixtures, little or no fines Clayey gravels, poorly graded gravel-sand-clay mixtures Well graded sands, gravelly sands, little or no fines Poorly graded sands, gravelly sands, little or no fines Silty sands, poorly graded sand-silt mixtures Clayey sands, poorly graded sand-clay mixtures Inorganic silts and very fine sands, rock flour, silty or clayey fine sands with slight plasticity Inorganic clays of low to medium plasticity, gravelly clays, sandy clays, silty clays, lean clays Organic silts and organic silt-clays of low plasticity Inorganic silts, micaceous or diatomaceous fine sandy or silty soils, elastic silts Inorganic clays of high plasticity, fat clays Organic clays of medium to high plasticity Peat and other highly organic soils MOISTURE CONDITION CRITERIA SOIL CEMENTATION CRITERIA Description Criteria Description Criteria Dry Absence of moisture, dusty, Weak Crumbles or breaks with handling or little dry to touch. finger pressure. Moist Damp, no visible free water. Moderate Crumbles or breaks with considerable Wet Visible free water, usually below finger pressure. groundwater table. Strong Won t break or crumble w/finger pressure Groundwater Elevation Symbols STANDARD PENETRATION CLASSIFICATION * (after Peck, et al., 1974) GRANULAR SOIL CLAYEY SOIL BLOWS/FT DENSITY BLOWS/FT CONSISTENCY N OVER 5 VERY LOOSE LOOSE MEDIUM DENSE DENSE VERY DENSE * N6-values are only reliable for sands, and should serve only as estimates for other materials such as gravels, silts and clays. N6-1 VERY SOFT 2-4 SOFT 5-8 MEDIUM STIFF 9-15 STIFF 16-3 VERY STIFF 31-6 HARD OVER 6 VERY HARD California Modified Sampler field blow counts (NCMS field) for (6< NCMS field <5) can be converted to N field by: (NCMS field)(.62) = N field field blow counts (N field) can be converted to N6 by: (N field)(etr/6) =N6 ETR = Energy Transfer Ratio Field blow counts from 14 lb hammer with 3 inch free fall 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 SOIL COLOR DESIGNATIONS ARE FROM THE MUNSELL SOIL/ROCK COLOR CHARTS. EXAMPLE: (7.5 YR 5/3) BROWN Revised June 211 SAMPLER NOTATION CMS CALIF. MODIFIED SAMPLER 1 CPT CONE PENETRATION TEST CS CONTINUOUS SAMPLER 2 PB PITCHER BARREL RC ROCK CORE 3 SH SHELBY TUBE 4 STANDARD PENETRATION TEST 5 TP TEST PIT 1- I.D.= inch 2- I.D.=3.228 inch with tube; 3.5 inch w/o tube 3- NXB I.D.= inch 4- I.D.= inch 5- I.D.= inch, O.D.= 2. inch

16 EXPLORATION LOG START DATE 6/2/11 END DATE 6/2/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-1 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/2/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A GC CLAYEY GRAVEL with SAND White to light tan, dry, very dense B C 15/.1' /.1' 1 87 CL 5.7 SANDY LEAN CLAY Light tan, dry to damp, stiff (B) Last 1 blows - no progress. No Hard drilling 5.' to 6.5' D E F CMS 15/.1' /.1' SC GC CLAYEY SAND with GRAVEL Light tan to tan, damp, medium stiff CLAYEY GRAVEL with SAND Tan, dry to damp, hard (D) Last 1 blows - no progress. No Hard drilling 1.' to 11.'. (E) Drove r 1.6' G CLAYEY SAND with GRAVEL Tan, dry to damp, hard NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H SC 26.5 CLAYEY SAND with GRAVEL Light tan to tan, damp, hard B.O.H. Hard drilling 22.' to 23.'.

17 EXPLORATION LOG START DATE 6/21/11 END DATE 6/21/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-2 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/21/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B CL LEAN CLAY Tan, dry to damp, medium stiff GRAVELLY LEAN CLAY with SAND Tan, dry to damp, very stiff (A) Drove r 1.6' C D 1/.1' /.1' CLAYEY GRAVEL with SAND Light tan, dry to damp, dense (C) 1 blows - no progress. No Hard drilling 7.5' to 8.5' E CLAYEY GRAVEL with SAND Light tan, dry to damp, dense F CLAYEY GRAVEL with SAND Light tan, dry to damp, dense GC G CLAYEY GRAVEL with SAND Light tan, dry to damp, dense NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H CLAYEY GRAVEL with SAND Light tan to white, dry to damp, very dense B.O.H.

18 EXPLORATION LOG START DATE 6/21/11 END DATE 6/21/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-3 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/21/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A SANDY LEAN CLAY Light tan, dry to damp, medium dense B C 1/.1' /.1' CL SANDY LEAN CLAY Light to medium brown, damp, stiff (B) 1 blows - no progress. No (C) Drove r 1.6' D SANDY LEAN CLAY Light to medium brown, damp, very stiff E F SANDY LEAN CLAY with GRAVEL Light to medium brown, dry to damp, hard CLAYEY SAND with GRAVEL Light to medium brown, dry to damp, hard SC G CLAYEY SAND Light to medium brown, dry to damp, hard NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H CH SANDY FAT CLAY Mottled white to light tan, dry, very stiff B.O.H.

19 EXPLORATION LOG START DATE 6/21/11 END DATE 6/21/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-4 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/21/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A LEAN CLAY with SAND Light tan, dry, stiff B CL LEAN CLAY with SAND Light tan, dry, stiff (B) 5 blows - no progress C LEAN CLAY with SAND Medium brown with light brown inclusions, dry to damp, medium dense D E LEAN CLAY with SAND Medium brown with light brown inclusions, dry to damp, medium dense CLAYEY SAND with GRAVEL Light tan to brown, dry, very dense F SC CLAYEY SAND with GRAVEL Light tan to brown, dry, dense G CL SANDY LEAN CLAY Medium tan to light tan, dry, hard, lightly cemented at tip NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H CH SANDY FAT CLAY Light to medium reddish brown, dry to damp, dense, with light tan nodules B.O.H.

20 EXPLORATION LOG START DATE 6/22/11 END DATE 6/22/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-5 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/22/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A SILTY SAND with GRAVEL Light tan, dry, medium dense B SILTY SAND with GRAVEL Light tan, dry, dense C SM SILTY SAND with GRAVEL Light tan, dry, very dense D 5/.3' 5/.3' (D) No E F 15/.1' 2/.2' 15/.1' 2/.2' (E) Last 1 blows - no progress. No (F) Last 1 blows - no progress. No G 54 5/.3' 5/.3' 63 FAT CLAY Light greenish white to light tan, dry to damp, very hard CH NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H FAT CLAY with SAND Light greenish white to light tan, dry to damp, very hard B.O.H.

21 EXPLORATION LOG START DATE 6/22/11 END DATE 6/22/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-6 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/22/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A SILTY GRAVEL with SAND Light tan to light reddish brown, dry, medium dense B CMS /.1' 25/.1' 81 SILTY GRAVEL with SAND Light tan, dry, very dense (B) Last 1 blows - no progress C D E F 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' GM 17.5 (C) Last 1 blows - no progress. No (D) Last 1 blows - no progress. No (E) Last 1 blows - no progress. No (F) Last 1 blows - no progress. No G /.2' 3/.2' 1 SANDY FAT CLAY Light tan, dry, very dense CH NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H SANDY FAT CLAY Light tan to medium brown, dry to damp, very hard B.O.H.

22 EXPLORATION LOG START DATE 6/22/11 END DATE 6/22/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-7 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/22/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B C D /.1' /.1' GM GP GM SILTY GRAVEL with SAND Light to medium brown, dry, very dense POORLY GRADED GRAVEL with SILT and SAND Medium brown, dry to damp, medium dense POORLY GRADED GRAVEL with SILT and SAND Light to medium brown, dry, very dense CLAYEY GRAVEL with SAND Light to medium brown, dry, very dense (D) Last 1 blows - no progress E 25/.2' 25/.2' (E) Last 1 blows - no progress. No GC F CLAYEY GRAVEL with SAND Light tan, dry to damp, very dense NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ G /.4' 5/.4' CLAYEY GRAVEL with SAND Light tan, dry to damp, very dense B.O.H.

23 EXPLORATION LOG START DATE 6/23/11 END DATE 6/23/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-8 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/23/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B CMS ML 4.5 SILT Medium brown, damp, medium stiff LEAN CLAY with SAND Medium brown to light greenish gray, damp, stiff (A) Drove r 1.6' C CMS CL SANDY LEAN CLAY Medium grayish brown, damp, stiff, vesicular D SANDY LEAN CLAY Light greenish gray to mottled tan and medium brown, damp, stiff E CLAYEY SAND with GRAVEL Light tan, dry to damp, medium dense SC F CLAYEY SAND with GRAVEL Light tan to light reddish brown, dry, dense NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ G GC CLAYEY GRAVEL with SAND Light reddish brown to white, dry, very hard B.O.H.

24 EXPLORATION LOG START DATE 6/23/11 END DATE 6/23/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-9 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 6/23/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A LEAN CLAY Light to medium brown, dry, loose B C CL LEAN CLAY Medium brown, dry, medium dense SANDY LEAN CLAY Light tan to greenish white to white, dry, hard D SANDY LEAN CLAY Light greenish gray mottled with white, dry, hard, lightly cemented E CLAYEY SAND with GRAVEL Light tan, dry, dense SC F CLAYEY SAND with GRAVEL Light tan, dry, dense NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ G GC CLAYEY GRAVEL with SAND Light tan to white, dry, stiff, lightly cemented B.O.H.

25 EXPLORATION LOG START DATE 7/18/11 END DATE 7/18/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-1 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/18/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A /.3' 5/.3' 85 GM SILTY GRAVEL with SAND Light tan, dry, very dense B 5/.4' 5/.4' 6.4 (B) No C 5/.3' 5/.3' (C) No D 47 5/.2' 5/.2' SILTY CLAYEY GRAVEL with SAND Light tan, dry to damp, very dense E F 15/.1' 15/.1' 15/.1' 15/.1' GC GM 17.5 (E) Last 1 blows - no progress. No (F) Last 1 blows - no progress. No G 15/.1' 15/.1' (G) Last 1 blows - no progress. No NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H 5/.4' 5/.4' 25.4 B.O.H. (H) No

26 EXPLORATION LOG START DATE 7/19/11 END DATE 7/19/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-11 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/19/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B C 2/.1' 2/.1' 5/.4' 2/.1' 2/.1' 5/.4' 1 SC CLAYEY SAND with GRAVEL Light tan, dry, very dense (A) Last 1 blows - no progress. No (B) Last 1 blows - no progress. No D E F 2/.2' 15/.1' 15/.1' 2/.2' 15/.1' 15/.1' 13.5 (D) Last 1 blows - no progress. No (E) Last 1 blows - no progress. No (F) Last 1 blows - no progress. No G 2/.2' 2/.2' (G) Last 1 blows - no progress. No NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H 15/.1' 15/.1' 25.1 B.O.H. (H) Last 1 blows - no progress. No

27 EXPLORATION LOG START DATE 7/19/11 END DATE 7/19/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-12 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Left Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/19/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A CLAYEY GRAVEL with SAND White to tan, dry to damp, dense B CLAYEY GRAVEL with SAND White to tan, dry to damp, dense C CLAYEY GRAVEL with SAND Light tan, damp, dense D E GC CLAYEY GRAVEL with SAND Tan, damp, medium dense CLAYEY GRAVEL with SAND Tan, damp, dense F CLAYEY GRAVEL with SAND Tan, damp, dense G CLAYEY GRAVEL with SAND Tan, damp, dense (G) Rock in r shoe. NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H 5/.4' 5/.4' 1 SC SM SILTY CLAYEY SAND with GRAVEL Tan, damp, very dense B.O.H.

28 EXPLORATION LOG START DATE 7/19/11 END DATE 7/19/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-13 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Left Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/19/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B /.3' 42 1/.3' 87 8 GC GP GC CLAYEY GRAVEL with SAND Light tan, dry to damp, dense POORLY GRADED GRAVEL with CLAY and SAND Light tan, dry to damp, very dense B.O.H. (B) Last 5 blows - no progress. Drilled 25 minutes up to 5 psi down pressure - very little progress NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/

29 EXPLORATION LOG START DATE 7/19/11 END DATE 7/19/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-14 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Left Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/19/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B 15/.1' 42 1/ 15/.1' 1/ 8 SC CLAYEY SAND with GRAVEL White to light tan, dry, very dense (A) Last 1 blows - no progress. No 7. B.O.H. Drilled 2 minutes up to 3 psi down pressure - very little progress NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/

30 EXPLORATION LOG START DATE 7/19/11 END DATE 7/19/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-15 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Left Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/19/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A GP GM POORLY GRADED GRAVEL with SILT and SAND White to light tan, dry, very dense B C D E 15/.1' 11/.1' 15/.1' 2/.3' 15/.1' 11/.1' 15/.1' 2/.3' 11.3 (B) Last 1 blows - no progress. No (C) Last 1 blows - no progress. No (D) Last 1 blows - no progress. No (E) Last 1 blows - no progress. No SP SC F 5/.3' 5/.3' 1 POORLY GRADED SAND with SILTY CLAY and GRAVEL White to light tan, dry, very dense NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ G 15/.1' 15/.1' 25.1 B.O.H. (G) Last 1 blows - no progress. No

31 EXPLORATION LOG START DATE 7/2/11 END DATE 7/2/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-16 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Left Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/2/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B GM SILTY GRAVEL with SAND Light to medium reddish brown, dry, dense to very dense SILTY GRAVEL with SAND Light to medium tan, dry to damp, very dense C D E F 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' 15/.1' 8.8 (C) Last 1 blows - no progress. No (D) Last 1 blows - no progress. No (E) Last 1 blows - no progress. No (F) Last 1 blows - no progress. No G 15/.1' 15/.1' (G) Last 1 blows - no progress. No NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H 15/.1' 15/.1' 25.1 B.O.H. (H) Last 1 blows - no progress. No

32 EXPLORATION LOG START DATE 7/2/11 END DATE 7/2/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-17 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Left Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/2/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B C D E F /.1' 3/.2' 15/.1' 3/.2' 15/.1' 29 15/.1' 3/.2' 15/.1' 3/.2' 15/.1' 73 SC SM 8.8 SILTY CLAYEY SAND with GRAVEL Light to medium brown, dry, dense (B) Last 1 blows - no progress. No (C) Last 1 blows - no progress. No (D) Last 1 blows - no progress. No (E) Last 1 blows - no progress. No (F) Last 1 blows - no progress. No G 1/.1' 1/.1' (G) Last 1 blows - no progress. No NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H 1/.1' 1/.1' 25.1 B.O.H. (H) Last 1 blows - no progress. No

33 EXPLORATION LOG START DATE 7/2/11 END DATE 7/2/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-18 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/2/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A 5/.4' 5/.4' 1 GC GM 4. SILTY CLAYEY GRAVEL with SAND Light tan, dry, very dense B C D E /.1' 1/.1' 47 5/.3' 42 15/.1' 1/.1' 5/.3' 87 GP GC GC 8.8 POORLY GRADED GRAVEL with CLAY and SAND Light to medium brown, dry to damp, dense CLAYEY GRAVEL with SAND White to light tan, dry, very dense (C) Last 1 blows - no progress. No (D) Last 1 blows - no progress. No F 1/.1' 1/.1' 17.5 (F) Last 1 blows - no progress. No G 1/.1' 1/.1' (G) Last 1 blows - no progress. No NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H 3/.3' 3/.3' 25.3 B.O.H. (H) Last 1 blows - no progress. No

34 EXPLORATION LOG START DATE 7/21/11 END DATE 7/21/11 JOB DESCRIPTION US 95 Soundwalls LOCATION North of Ann Road BORING ASW-19 E.A. # GROUNDWATER LEVEL GROUND ELEV (ft) DATE DEPTH ft ELEV. ft HAMMER DROP SYSTEM Automatic STATION OFFSET ENGINEER EQUIPMENT OPERATOR DRILLING METHOD BACKFILLED "XP" ' Right Boomhower Diedrich D-12 Pypkowski 6" H.S.A. Yes DATE SHEET 1 OF 1 7/21/211 ELEV. (ft) DEPTH (ft) SAMPLE BLOW COUNT 6 inch Last NO. TYPE Increments 1 foot Percent Recov'd LAB TESTS USCS Group MATERIAL DESCRIPTION Light tan sandy gravel, dry REMARKS A B C D E F /.1' 1/.1' 1/.1' 1/.1' 2/.1' 23 1/.1' 1/.1' 1/.1' 1/.1' 2/.1' 73 GM 8.8 SILTY GRAVEL with SAND Light to medium brown, dry to damp, very stiff (B) Last 1 blows - no progress. No Very hard drilling at 5.1'. (C) Last 1 blows - no progress. No (D) Last 1 blows - no progress. No (E) Last 1 blows - no progress. No (F) Last 1 blows - no progress. No G 1/.1' 1/.1' (G) Last 1 blows - no progress. No NV_DOT GINT FILES.GPJ NV_DOT.GDT 8/21/ H 1/.1' 1/.1' 25.1 B.O.H. (H) Last 1 blows - no progress. No

35 APPENDIX C Soil Particle Size Distribution Sheets Consolidation Test Report Sheets Test Result Summary Sheets

36 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-6(4) CL A-6(8) SC A-6(2) 14 3 SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey gravel with sand 1" /4" sandy lean clay 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-1 Depth: ' Sample Number: A Source of Sample: ASW-1 Depth: ' Sample Number: C Source of Sample: ASW-1 Depth: ' Sample Number: E Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL clayey sand with gravel REMARKS: Figure

37 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-6(2) GC-GM A-4() 2 26 SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey gravel with sand 1.5" " SIEVE ONLY 3/4" /2" /8" silty clayey gravel D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-1 Depth: ' Sample Number: F1 Source of Sample: ASW-1 Depth: ' Sample Number: F2 Source of Sample: ASW-1 Depth: ' Sample Number: F3 Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

38 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC A-6(4) SC A-7-6(13) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey sand with gravel 1" 1. 3/4" clayey sand with gravel 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-1 Depth: ' Sample Number: G Source of Sample: ASW-1 Depth: ' Sample Number: H REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

39 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-4(9) CL A-6(4) GC A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number lean clay 1.5" 1. 1" gravelly lean clay with sand 3/4" /2" /8" clayey gravel with sand D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-2 Depth: ' Sample Number: A Source of Sample: ASW-2 Depth: ' Sample Number: B Source of Sample: ASW-2 Depth: ' Sample Number: D Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

40 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-6(1) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number SIEVE ONLY 1.5" 1. 1" clayey gravel with sand 3/4" /2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-2 Depth: ' Sample Number: E Source of Sample: ASW-2 Depth: ' Sample Number: F REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

41 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-7-5(12) 36 9 SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number SIEVE ONLY 1.5" 1. 1" clayey gravel with sand 3/4" /2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-2 Depth: ' Sample Number: G Source of Sample: ASW-2 Depth: ' Sample Number: H REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

42 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-4(4) CL A-6(6) CL A-6(4) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number sandy lean clay 3/4" 1. 1/2" sandy lean clay 3/8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-3 Depth: ' Sample Number: A Source of Sample: ASW-3 Depth: ' Sample Number: C Source of Sample: ASW-3 Depth: ' Sample Number: D Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL sandy lean clay REMARKS: Figure

43 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-4(1) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number sandy lean clay with gravel 1" 1. 3/4" SIEVE ONLY 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-3 Depth: ' Sample Number: E Source of Sample: ASW-3 Depth: ' Sample Number: F REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

44 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC A-6(2) CH A-7-6(12) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey sand 1" 1. 3/4" sandy fat clay 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-3 Depth: ' Sample Number: G Source of Sample: ASW-3 Depth: ' Sample Number: H REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

45 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-6(12) CL A-6(1) CL A-6(8) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number lean clay with sand 3/4" /2" lean clay with sand 3/8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-4 Depth: ' Sample Number: A Source of Sample: ASW-4 Depth: ' Sample Number: B Source of Sample: ASW-4 Depth: ' Sample Number: C Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL lean clay with sand REMARKS: Figure

46 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC A-2-6() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number SIEVE ONLY 1.5" 1. 1" clayey sand with gravel 3/4" /2" /8" SIEVE ONLY D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-4 Depth: ' Sample Number: D Source of Sample: ASW-4 Depth: ' Sample Number: E Source of Sample: ASW-4 Depth: ' Sample Number: F Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

47 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-6(6) CH A-7-6(12) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number sandy lean clay 3/4" 1. 1/2" sandy fat clay 3/8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-4 Depth: ' Sample Number: G Source of Sample: ASW-4 Depth: ' Sample Number: H REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

48 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SM A-2-4() NP SM A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silty sand with gravel 1.5" 1. 1" silty sand with gravel 3/4" /2" /8" SIEVE ONLY D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-5 Depth: ' Sample Number: A Source of Sample: ASW-5 Depth: ' Sample Number: B Source of Sample: ASW-5 Depth: ' Sample Number: C Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

49 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CH A-7-5(58) CH A-7-6(34) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number fat clay 1/2" 1. 3/8" 99. fat clay with sand D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-5 Depth: ' Sample Number: G Source of Sample: ASW-5 Depth: ' Sample Number: H REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

50 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GM A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silty gravel with sand 1.5" " SIEVE ONLY 3/4" /2" /8" SIEVE ONLY D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-6 Depth: ' Sample Number: A Source of Sample: ASW-6 Depth: ' Sample Number: B1 Source of Sample: ASW-6 Depth: ' Sample Number: B2 Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

51 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CH A-7-6(11) CH A-7-6(34) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number sandy fat clay 1/2" 1. 3/8" fat clay D 6 D 3 D GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-6 Depth: ' Sample Number: G Source of Sample: ASW-6 Depth: ' Sample Number: H REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

52 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GP-GM A-1-a SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number SIEVE ONLY 1.5" " /4" /2" /8" SIEVE ONLY D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-7 Depth: ' Sample Number: A Source of Sample: ASW-7 Depth: ' Sample Number: B Source of Sample: ASW-7 Depth: ' Sample Number: C Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL poorly graded gravel with silt and sand REMARKS: Figure

53 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-2-4() GC A-2-7(1) GC A-2-7(2) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey gravel with sand 1.5" " clayey gravel with sand 3/4" /2" /8" clayey gravel with sand D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-7 Depth: ' Sample Number: D Source of Sample: ASW-7 Depth: ' Sample Number: F Source of Sample: ASW-7 Depth: ' Sample Number: G Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

54 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL ML A-7-5(13) CL A-6(13) CL A-6(18) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silt 1/2" /8" lean clay D 6 D 3 D 1 GRAIN SIZE.68 COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-8 Depth: ' Sample Number: A Source of Sample: ASW-8 Depth: ' Sample Number: B1 Source of Sample: ASW-8 Depth: ' Sample Number: B2 Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL lean clay REMARKS: Figure

55 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-6(15) CL A-7-6(2) CL A-7-6(19) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number lean clay with sand 1/2" 1. 3/8" 99.3 lean clay with sand D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-8 Depth: ' Sample Number: B3 Source of Sample: ASW-8 Depth: ' Sample Number: B4 Source of Sample: ASW-8 Depth: ' Sample Number: C1 Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL-5-11 lean clay with sand REMARKS: Figure

56 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-6(14) CL A-6(14) CL A-7-6(1) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number sandy lean clay 3/4" 1. 1/2" 97.8 sandy lean clay 3/8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS.896 NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-8 Depth: ' Sample Number: C2 Source of Sample: ASW-8 Depth: ' Sample Number: C3 Source of Sample: ASW-8 Depth: ' Sample Number: D Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL sandy lean clay REMARKS: Figure

57 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC A-2-6(1) GC A-2-7(2) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number SIEVE ONLY 1.5" 1. 1" clayey sand with gravel 3/4" /2" /8" clayey gravel with sand D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-8 Depth: ' Sample Number: E Source of Sample: ASW-8 Depth: ' Sample Number: F Source of Sample: ASW-8 Depth: ' Sample Number: G Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

58 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-6(19) CL A-6(7) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number SIEVE ONLY 3/4" 1. 1/2" 96.5 lean clay 3/8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-9 Depth: ' Sample Number: A Source of Sample: ASW-9 Depth: ' Sample Number: B Source of Sample: ASW-9 Depth: ' Sample Number: C Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL sandy lean clay REMARKS: Figure

59 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL CL A-7-6(18) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number sandy lean clay 1" 1. 3/4" 9.8 SIEVE ONLY 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-9 Depth: ' Sample Number: D Source of Sample: ASW-9 Depth: ' Sample Number: E REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

60 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC A-2-6(1) GC A-7-6(1) SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey sand with gravel 1" /4" clayey gravel with sand 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-9 Depth: ' Sample Number: F Source of Sample: ASW-9 Depth: ' Sample Number: G REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

61 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GM A-1-a GC-GM A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silty gravel with sand 1.5" 1. 1" /4" /2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-1 Depth: ' Sample Number: A Source of Sample: ASW-1 Depth: ' Sample Number: D silty clayey gravel with sand REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

62 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC A-2-6() 2 34 SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey sand with gravel 3/4" 1. 1/2" /8" 83.1 D 6 D 3 D GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-11 Depth: ' Sample Number: C REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

63 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-2-4() GC A-2-6() GC A-2-6() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey gravel with sand 1" /4" clayey gravel with sand 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-12 Depth: ' Sample Number: A Source of Sample: ASW-12 Depth: ' Sample Number: B Source of Sample: ASW-12 Depth: ' Sample Number: C Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL clayey gravel with sand REMARKS: Figure

64 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-2-6() GC A-2-6() GC A-2-6() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey gravel with sand 1.5" 1. 1" clayey gravel with sand 3/4" /2" /8" clayey gravel with sand D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-12 Depth: ' Sample Number: D Source of Sample: ASW-12 Depth: ' Sample Number: E Source of Sample: ASW-12 Depth: ' Sample Number: F Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL REMARKS: Figure

65 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-2-6() SC-SM A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey gravel with sand 1.5" 1. 1" 83.9 silty, clayey sand with gravel 3/4" /2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-12 Depth: ' Sample Number: G Source of Sample: ASW-12 Depth: ' Sample Number: H REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

66 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC A-2-6() GP-GC A-2-6() 2 31 SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey gravel with sand 1.5" 1. 1" /4" /2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-13 Depth: ' Sample Number: A Source of Sample: ASW-13 Depth: ' Sample Number: B poorly graded gravel with clay and sand REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

67 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number clayey sand with gravel 3/4" 1. 1/2" /8" 75.1 D 6 D 3 D GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-14 Depth: ' Sample Number: B REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

68 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GP-GM A-1-a NP SP-SC A-1-a SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number poorly graded gravel with silt and sand 1" 1. 3/4" poorly graded sand with siltyclay and gravel 1/2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-15 Depth: ' Sample Number: A Source of Sample: ASW-15 Depth: ' Sample Number: F REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

69 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GM A-1-a GM A-1-a NP 18 SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silty gravel with sand 1.5" 1. 1" silty gravel with sand 3/4" /2" /8" D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-16 Depth: ' Sample Number: A Source of Sample: ASW-16 Depth: ' Sample Number: B REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

70 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL SC-SM A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silty, clayey sand with gravel 3/4" 1. 1/2" /8" 84.8 D 6 D 3 D GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-17 Depth: ' Sample Number: A REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

71 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GC-GM A-1-b GP-GC A-2-4() GC A-2-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silty clayey gravel with sand 1.5" 1. 1" /4" /2" /8" clayey gravel with sand D 6 D 3 D 1 GRAIN SIZE COEFFICIENTS NEVADA DEPARTMENT OF TRANSPORTATION #1 #16 #5 #1 # C c C u Source of Sample: ASW-18 Depth: ' Sample Number: A Source of Sample: ASW-18 Depth: ' Sample Number: B Source of Sample: ASW-18 Depth: ' Sample Number: E Client: Project: Project No.: D. Boomhower US 95 Soundwalls EA 73627, FL poorly graded gravel with clay and sand REMARKS: Figure

72 Particle Size Distribution Report 1 6 in. 3 in. 2 in. 1½ in. 1 in. ¾ in. ½ in. 3/8 in. #1 #2 #3 #6 #1 #14 # PERCENT FINER GRAIN SIZE - mm. +3" % GRAVEL % SAND % SILT % CLAY USCS AASHTO PL LL GM A-4() SIEVE PERCENT FINER SIEVE PERCENT FINER Material Description inches number silty gravel with sand 1" 1. 3/4" /2" /8" 78.1 D 6 D 3 D GRAIN SIZE COEFFICIENTS #1 #16 #5 #1 # C c C u Source of Sample: ASW-19 Depth: ' Sample Number: A REMARKS: NEVADA DEPARTMENT OF TRANSPORTATION Client: Project: D. Boomhower US 95 Soundwalls Project No.: EA 73627, FL-5-11 Figure

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