DEPARTMENT OF TRANSPORTATION DIVISION: MATERIALS REPORT COVER SHEET. Soil Survey Report March 29, 2015 Matthew G. Moore, P.E.

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1 LD-40 /12/09 DEPARTMENT OF TRANSPORTATION DIVISION: MATERIALS REPORT COVER SHEET Soil Survey Report March 29, 201 Matthew G. Moore, P.E. VDOT (Division) or Company Name Insert Location, Virginia Insert Technical Discipline VDOT Materials - Culpeper District Culpeper, Virginia Geotechnical Engineering VDOT (Division) or Company Name Insert Location, Virginia Insert Technical Discipline Responsible for Pages Responsible for Pages 1 to 3 Responsible for Pages Project Description From: 0.09 Miles East of Route 100 To: Route 1070 Project UPC No.: 10049

Charles A. Kilpatrick, P.E. Commissioner DEPARTMENT OF TRANSPORTATION 101 Orange Road Culpeper, Virginia 22701 March 29, 201 Project: 01-030-737, P101 UPC #: 10049 From: 0.09 mi. E. of Rte.

2 Charles A. Kilpatrick, P.E. Commissioner DEPARTMENT OF TRANSPORTATION 101 Orange Road Culpeper, Virginia March 29, 201 Project: , P101 UPC #: From: 0.09 mi. E. of Rte. 100 To: Rte Length: 0.1 mi. To: Culpeper District Location & Design Subject: Soil Survey Report, Route 1 Schoolhouse Road, This soil survey report is based on a total of seven (7) soil borings performed on March 9, 201. The borings were extended to a maximum depth of.0 feet below existing surface elevations. The purpose of the project is to improve or change the alignment of Route 1 without added capacity. According to Integrated Project Management (IPM) system information, the project is currently scheduled for construction November 201. Soil Description, Groundwater & Observations Below the existing pavement structure, strata described and/or classified as clay (CL) was encountered. Auger refusal, possibly indicating the top of rock, was encountered at boring location B- at approximately 4.0 feet below the existing surface elevation. Groundwater was not encountered. Descriptions of strata are provided on the attached boring logs. Existing Pavement Structure At the boring locations, the existing pavement structure consisted of asphalt concrete layers ranging between 4.0 and.0 inches and underlying base type aggregate ranging between 4.0 and.0 inches. The pavement structure material thicknesses are show on the attached boring logs. WE KEEP VIRGINIA MOVING

3 Soil Survey Report VDOT Project No , P101, UPC# March 29, 201 Page 2 of 3 Pavement Structure Recommendations New Pavement Route 1 Mainline For Surface: Use 1. inches of Asphalt Concrete, Type SM-9.A. For Base: Use 4.0 inches of Asphalt Concrete, Type BM-A. For Subbase: Use. inches of Aggregate Base, Type I, Size No. 21-B. Existing Pavement Route 1 Mainline Mill 1. inches and replace with 1. inches Asphalt Concrete, Type SM-9.A. The AASHTO Guide for Design of Pavement Structures (1993) was used to determine the pavement structure recommendations above (new pavement and overlay). A 20-year design life,,000 psi subgrade resilient modulus, assumed % growth rate and traffic data obtained from VDOT Traffic Engineering Division (Year 2013, Jurisdiction Report 030) were used for calculations of new pavement structure design. A 10-year design life was used for the overlay design. Existing paved shoulder areas that will be exposed to long-term or post-construction mainline traffic should be demolished and replaced with new mainline pavement structure. UD-4 edge-drain and CD-2 under-drain should be constructed per VDOT Road and Bridge Standards with positive drainage to outlet pipes and daylight points. In lieu of edge-drain, pavement structure drainage can be provided by day-lighting the aggregate subbase. For crown sections, edge-drain should be placed along both sides of the pavement structure and along the low side, only, for superelevated sections. Earthwork & Materials Recommendations Regular Excavation & Borrow Soils from the planned regular excavation can be used for fill and backfill. Borrow soils should have a minimum CBR value of.0, maximum Liquid Limit () of 4 and maximum plasticity index of 20. Highly plastic clay was encountered and may need significant manipulation in order to achieve the moisture content(s) required for adequate compaction. It is recommended that the Contractor plan for having equipment available to disc and till the soils. Slopes All cut and fill slopes should be no steeper than a ratio of 2 horizontal to 1 vertical (2H:1V). Shrinkage Estimate Use % shrinkage factor for earthwork volume computations (borrow and regular excavation). Topsoil Use.0-inch depth for calculation of topsoil removal. Ditch lines, and other areas where soil and debris can accumulate, may need to be considered with, or part of, topsoil removal in fill areas. WE KEEP VIRGINIA MOVING

4 Soil Survey Report VDOT Project No , P101, UPC# March 29, 201 Page 3 of 3 Rock Auger refusal was encountered at boring location B- at approximately 4.0 feet below the existing surface elevation and may indicate the tope of rock. Based on comparison of the planned cut depths with the auger refusal elevation, rock excavation is not anticipated. Auger refusal was not encountered at any of the other boring locations. Unsuitable Subgrade Soil material unsuitable for proposed subgrade was not encountered within the borings. Source of Materials Aggregates Two sources for aggregate material, located within the Culpeper District and near to the project location, are provided below along with recent test results data of selected products. Luck Stone Bealton Aggregate Base Material, Type I, Size No. 21-A maximum dry density 13. lbs. /cu. ft. at 4.% optimum moisture content. Aggregate Base Material, Type I, Size No. 21-B maximum dry density 11.9 lbs. / cu. ft. at 4.7% optimum moisture content. Vulcan Materials - Warrenton Aggregate Base Material, Type I, Size No. 21-A maximum dry density lbs. / cu. ft. at.9% optimum moisture content. Aggregate Base Material, Type I, Size No. 21-B maximum dry density 13.3 lbs. / cu. ft. at.% optimum moisture content. For Open-Graded Aggregate, Size No. 7, a unit weight of 10.0 lbs. / cu. ft. is recommended for quantity calculations. Matthew G. Moore. P.E. Geotechnical/Pavement Engineer Culpeper District Materials Attachments: Boring Logs (7 Pages) Boring Location Plan (2 Pages) WE KEEP VIRGINIA MOVING

7 LEGEND Date(s) Drilled: 3/9/201-3/9/201 NOT ENCOUNTERED DURING DRIING FIELD DESCRIPTION OF 0.0 / / / 29 Red to brown, LEAN CLAY, contains aggregate, very stiff, moist CL 2.2 / 290. Red to brown, LEAN CLAY, hard, moist CL Boring terminated at 3.7 feet ,P101,R201,C01 STATION: SURFACE ELEVATION: 29 ft B-1 OFFSET: ' Right of CL FINES CONTENT -#200 (%) SPT_LOGB:ROUTE 1 SCHOOLHOUSE RD.GPJ: :01212:3/30/1 REMARKS: Rig Type: CME-4C. Copyright 201, Commonwealth of Virginia B-1

8 LEGEND ,P101,R201,C01 STATION: SURFACE ELEVATION: 29.0 ft Date(s) Drilled: 3/9/201-3/9/201 NOT ENCOUNTERED DURING DRIING FIELD DESCRIPTION OF 0.0 / / / Brown, LEAN CLAY, contains aggregate, hard, moist CL 1. / 29.2 Brown, LEAN CLAY, very hard, moist CL B-2 OFFSET: ' Left of CL 11.4 FINES CONTENT -#200 (%) / SAME, CL / 4.7 Boring terminated at 4.7 feet SPT_LOGB:ROUTE 1 SCHOOLHOUSE RD.GPJ: :01212:3/30/1 REMARKS: Rig Type: CME-4C. Copyright 201, Commonwealth of Virginia B-2

9 LEGEND Date(s) Drilled: 3/9/201-3/9/201 NOT ENCOUNTERED DURING DRIING FIELD DESCRIPTION OF 0.0 / / / 30.2 Brown, LEAN CLAY, contains aggregate, stiff, moist CL / SAME, CL 3. / 302. SAME, very stiff CL Boring terminated at.0 feet ,P101,R201,C01 STATION: SURFACE ELEVATION: 30.0 ft B-3 OFFSET: ' Right of CL FINES CONTENT -#200 (%) SPT_LOGB:ROUTE 1 SCHOOLHOUSE RD.GPJ: :01212:3/30/1 REMARKS: Rig Type: CME-4C. Copyright 201, Commonwealth of Virginia B-3

10 LEGEND Date(s) Drilled: 3/9/201-3/9/201 NOT ENCOUNTERED DURING DRIING FIELD DESCRIPTION OF 0.0 / / / Brown to gray, LEAN CLAY, contains aggregate base, stiff, moist CL / 30 SAME, CL Boring terminated at 4.0 feet ,P101,R201,C01 STATION: SURFACE ELEVATION: 30.0 ft B-4 OFFSET: ' Left of CL 1. FINES CONTENT -#200 (%) SPT_LOGB:ROUTE 1 SCHOOLHOUSE RD.GPJ: :01212:3/30/1 REMARKS: Rig Type: CME-4C. Copyright 201, Commonwealth of Virginia B-4

11 LEGEND ,P101,R201,C01 STATION: 304+ SURFACE ELEVATION: 30 ft Date(s) Drilled: 3/9/201-3/9/201 NOT ENCOUNTERED DURING DRIING FIELD DESCRIPTION OF 0.0 / / / 30 Brown to gray, LEAN CLAY, contains aggregate base, very stiff, moist CL B- OFFSET: ' Left of CL FINES CONTENT -#200 (%) / 300. SAME, hard CL Boring terminated at 3.7 feet Auger refusal at 4.2 feet. SPT_LOGB:ROUTE 1 SCHOOLHOUSE RD.GPJ: :01212:3/30/1 REMARKS: Rig Type: CME-4C. Copyright 201, Commonwealth of Virginia B-

12 LEGEND Date(s) Drilled: 3/9/201-3/9/201 NOT ENCOUNTERED DURING DRIING FIELD DESCRIPTION OF 0.0 / / / 29. Brown, LEAN CLAY, contains aggregate base, very stiff, moist CL 2.2 / 297. SAME, very hard CL ,P101,R201,C01 STATION: SURFACE ELEVATION: ft B- OFFSET: ' Right of CL Boring terminated at 4.2 feet SPT_LOG:ROUTE 1 SCHOOLHOUSE RD.GPJ: :01212:3/30/1 REMARKS: Rig Type: CME-4C. Copyright 201, Commonwealth of Virginia B-

13 LEGEND ,P101,R201,C01 STATION: 30+0 SURFACE ELEVATION: ft Date(s) Drilled: 3/9/201-3/9/201 NOT ENCOUNTERED DURING DRIING FIELD DESCRIPTION OF 0.0 / / / Brown, LEAN CLAY, contains aggregate base, hard, moist CL B-7 OFFSET: ' Left of CL / SAME, CL / SAME, CL Boring terminated at 4. feet SPT_LOG:ROUTE 1 SCHOOLHOUSE RD.GPJ: :01212:3/30/1 REMARKS: Rig Type: CME-4C. Copyright 201, Commonwealth of Virginia B-7

DEPARTMENT OF TRANSPORTATION DIVISION: MATERIALS REPORT COVER SHEET. Revised Soil Survey Report November 24, 2015 Matthew G. Moore, P.E.

LD-0 /12/09 DEPARTMENT OF TRANSPORTATION DIVISION: MATERIALS REPORT COVER SHEET Revised Soil Survey Report November 2, 201 Matthew G. Moore, P.E. VDOT (Division) or Company Name Insert Location, Virginia