B08_Att_18_Geotechnical_Report_CLIN_20-38.pdf

REPORT COVER PAGE

Geotechnical Data Report

GETT: Rehabilitation of Various Routes at Gettysburg National Military Park Gettysburg, Adams County, Pennsylvania

March 31, 2020 Terracon Project No. JD195236

Prepared for:

VHB

Richmond, Virginia

Prepared by:

Terracon Consultants, Inc.

Ashburn, Virginia

Terracon Consultants, Inc. 19955 Highland Vista Dr, Ste 170 Ashburn, Virg in ia 20147 P (703) 726 8030 F (703) 726 8032 terracon.com

REPORT COVER LET TER T O SIGN

March 31, 2020

VHB

115 South 15th Street Richmond, Virginia 23219

Attn: Mr. Tyson Rosser/Director of Transportation Engineering P: (757) 233-3241 E: TRosser@VHB.com

Re: Geotechnical Data Report GETT: Rehabilitation of Various Routes at Gettysburg National Military Park Gettysburg National Military Park Gettysburg, Adams County, Pennsylvania Terracon Project No. JD195236

Dear Mr. Rosser:

We have completed the Geotechnical Data services for the above referenced project. This study was performed in general accordance with Terracon Proposal No. PJD195236 dated September 16, 2019. This report presents the findings of the subsurface exploration and provides laboratory testing for the proposed project.

We appreciate the opportunity to be of service to you on this project. If you have any questions concerning this report or if we may be of further service, please contact us.

Sincerely, Terracon Consultants, Inc.

Braque Mathson, EIT Deniz Karadeniz, PhD, PG, PE Senior Project Manager Senior Engineer

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REPORT TOPICS

INTRODUCTION

SITE CONDITIONS

PROJECT DESCRIPTION

GEOTECHNICAL CHARACTERIZATION

GEOLOGIC OVERVIEW

GROUNDWATER

PAVEMENT

GENERAL COMMENTS

Note: This report was originally delivered in a web-based format. Orange Bold text in the report indicates a referenced section heading. The PDF version also includes hyperlinks which direct the reader to that section and clicking on the GeoReport logo will bring you back to this page. For more interactive features, please view your project online at client.terracon.com.

ATTACHMENTS

EXPLORATION AND TESTING PROCEDURES

SITE LOCATION AND EXPLORATION PLANS

EXPLORATION RESULTS

SUPPORTING INFORMATION

Note: Refer to each individual Attachment for a listing of contents.

http://client.terracon.com/

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INTRODUC TION

Geotechnical Data Report GETT: Rehabilitation of Various Routes at Gettysburg National

Military Park Gettysburg National Military Park

Gettysburg, Adams County, Pennsylvania Terracon Project No. JD195236

March 31, 2020

INTRODUCTION

This report presents the results of our subsurface exploration and laboratory testing performed for the proposed road improvements at the subject project. The geotechnical engineering Scope of Services for this project included the advancement of 15 Kessler Dynamic Cone Penetrometer (DCP) tests to depths ranging from approximately refusal to 30 inches below existing site grades and collecting 24 asphalt cores.

Maps showing the site and boring locations are shown in the Site Location and Exploration Plan sections, respectively. The results of the laboratory testing performed on soil samples obtained from the site during the field exploration are included on the boring logs and DCP test data logs in the Exploration Results section.

SITE CONDITIONS

The following description of site conditions is derived from our site visit in association with the field exploration and our review of publicly available geologic and topographic maps.

Item Description

Parcel Information

The project is located at four roads: Route 200 (US Cavalry Avenue), Route 201 (Confederate Cavalry Avenue – Gregg Avenue), Route 15 (North Sickles Avenue), and Route 12 (South Confederate Avenue – Sykes Avenue) located in the Gettysburg National Military Park in Gettysburg, Adams County, Pennsylvania. See Site Location

Existing Improvements Paved roads and grassland.

Existing Topography (Google Earth)

Approximate elevation ranges of the roads:

■ Route 200 – EL 550 to EL 556

■ Route 201 – EL 541 to EL 620

■ Route 15 – EL 565 to EL 575

■ Route 12 – EL 475 to EL 650

GETT: Rehabilitation of Various Routes at Gettysburg National Military Park Gettysburg, Adams County, Pennsylvania March 31, 2020 ■ Terracon Project No. JD195236

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We also collected photographs of the asphalt pavement cores at the time of our field exploration program. Representative photos are provided in our Exploration Results.

PROJECT DESCRIPTION

Our initial understanding of the project was provided in our proposal and was discussed during project planning. A period of collaboration has transpired since the project was initiated, and our final understanding of the project conditions is as follows:

Item Description

Information Provided Scope of services (SOS) dated 5/1/2019 and boring location chart provided on 11/27/2019.

Project Description The areas are existing two-lane paved asphalt roadway. The roadway has been patched numerous times with asphalt and concrete.

Proposed Construction Repair or replacement of the existing road to handle the average daily traffic.

Proposed Elevation Similar to the current elevation.

Estimated Start of Construction 2020

GEOTECHNICAL CHARACTERIZATION

We have developed a general characterization of the subsurface conditions based upon our review of the subsurface exploration, laboratory data, geologic setting and our understanding of the project. Conditions encountered at each exploration point are indicated on the individual logs.

The individual logs can be found in the Exploration Results section of this report.

As part of our analyses, we identified the following model layers within the subsurface profile.

Model Layer Layer Name General Description

1 Existing Fill

Brown, gray, dark gray, black, dark red, fine to coarse, SILTY

SAND WITH GRAVEL (SM), SILTY GRAVEL WITH SAND (GM),

CLAYEY GRAVEL WITH SAND (GC), loose to medium dense, moist

2 Residual

Red, dark red-brown, mottled brown with light olive, gray, dark gray, fine to coarse, SANDY LEAN CLAY (CL), GRAVELLY LEAN CLAY (CL), FAT CLAY WITH SAND (CH), SANDY SILT (ML), stiff, moist

Gettysburg, Adams County, Pennsylvania March 31, 2020 ■ Terracon Project No. JD195236

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GEOLOGIC OVERVIEW

The Gettysburg NMP Road Rehabilitation project site lies within the Gettysburg-Newark Lowland Section of the Piedmont Physiographic Province of Pennsylvania. Specifically, the site is located in the Gettysburg Basin, a fault bounded basin, or graben (dropped block), that is one of a series of rift basins that comprise the Newark Supergroup rocks. Regionally, the various basins of the Newark Supegroup run from northeast to southwest, parallel with the eastern edge of the Appalachian Mountains, and are the result of tectonic activity associated with the break-up (rifting) of the super-continent of Pangaea during the Triassic and Early Jurassic Geologic Periods. Over time, the Gettysburg Basin filled with lacustrine (lake bed) and alluvial fan deposits, a result of the erosion of the Appalachian Mountains to the west. Subsequent erosion of these deposits exposed a sequence of non-durable siltstones and shales in the central portion of the basin and conglomerates and sandstones along the margins. These sedimentary deposits were periodically intruded by igneous magma forming sills and dikes of diabase. Surrounding these intrusions are zones of contact metamorphism, or aureoles, where the heat and pressure from the intruding igneous body recrystallized the host material into more durable rock types (e.g. quartzite, metasiltstone, greywacke, etc.), usually referred to as hornfels. In general, the hornfels are more durable than their parent material. The final episode of igneous activity occurred during the Early Jurassic Period, when flows of basalt were extruded onto the surface. Thermally altered rocks are also associated with the basalt flows, but are not as extensive as the intrusion associated hornfels.

The project concerns the planned rehabilitation of four individual road segments within the environs of Gettysburg NMP, specifically:

1. Route 200 (US Cavalry Avenue also known as E. Cavalry Avenue)

2. Route 201 (Confederate Cavalry Avenue/Gregg Avenue)

3. Route 15 (North Sickles Avenue)

4. Route 12 (South Confederate-Sykes Avenue)

Route 200, Route 201, and Route 15, and the westernmost 1,200-feet of Route 12, are mapped as entirely underlain by the Gettysburg Formation, a sedimentary unit consisting of reddish-brown to maroon silty mudstone and shale, with thin strata of interbedded sandstone and several thin beds of impure limestone. The Gettysburg Formation is dated to the Triassic Geologic Period. The majority of Route 12 is mapped as diabase bedrock dating from the early Jurassic Geologic Period. Observations of surface bedrock exposures compared favorably with the mapped geology as consisting of gray or light buff, medium to coarse-grained diabase bedrock.

The diabase in the location is a large sheet that extends across Adams County from northeast to southwest. The diabase is resistant to erosion, and forms the chain of small hills at the Gettysburg battlefield including Cemetery Ridge, Culps Hill, and the Round Tops.

The soils underlying Route 200, Route 201, and Route 15, and the western 1,200-feet of Route 12 are mapped as colluvium and residuum derived from Triassic shale. These soils tend to range

Gettysburg, Adams County, Pennsylvania March 31, 2020 ■ Terracon Project No. JD195236

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The General Comments section provides an understanding of the report limitations.

GROUNDWATER

Groundwater level observations were made in the field during drilling of the 15 DCP tests. The holes were 4.75 inches to 55 inches in depth or auger refusal as measured from the top of asphalt.

Groundwater was not encountered in the holes at the time of our exploration.

The groundwater observations presented herein are considered to be an indication of the groundwater levels at the dates and times indicated. Where more impervious silt and clay soils are encountered, the amount of water seepage into the borings is limited, and it is generally not possible to establish the location of the groundwater table through short term water level observations. Also, fluctuations in groundwater levels should be expected with seasons of the year, construction activity, changes to surface grades, precipitation, or other similar factors.

PAVEMENT

A total of 24 asphalt pavement cores were obtained from each borehole. Below are the ranges of the thicknesses of the pavement and subbase when encountered.

■ Route 200 – Asphalt thickness ranged from 4.75 to 6.25 inches or auger refusal; Subbase thickness ranged from 0 to 4.0 inches.

■ Route 201 – Asphalt thickness ranged from 5.25 to 7.0 inches or auger refusal; Subbase thickness ranged from 0 to 18.0 inches.

■ Route 15 – Asphalt thickness ranged from 6.5 to 7.5 inches or auger refusal; Subbase was not encountered.

■ Route 12 – Asphalt thickness ranged from 5.25 to 9.0 inches or auger refusal; the park did not want the subbase material to be disturbed; therefore the subbase material was not measured.

The asphalt core pictures are in in the Exploration Results section.

Gettysburg, Adams County, Pennsylvania March 31, 2020 ■ Terracon Project No. JD195236

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Kessler DCP blowcounts were utilized to estimate an average California Bearing Ratio (CBR) within 30-inch below subgrade when no refusal encountered. There were seven locations (B- 03, B-04, B-5, B-07, B-08, B-14, and B-15) where the DCP encountered refusal and was not able to be advanced into the subgrade. DCP results and estimated average CBR values are provided in the Exploration Results section.

DCP ID

Asphalt

Thickness (Inches)A

Subbase Thickness (Inches)B

*Start Depth (Inches)A+B

*Bottom Depth

(Inches) DCP Remarks

B-01 4.75 2 6.75 36.75 No refusal B-02 6.25 4 10.25 40.25 No refusal B-03 4.75 0 4.75 4.75 Refusal B-04 5.25 0 5.25 5.25 Refusal B-05 5.75 0 5.75 5.75 Refusal B-06 7.0 18 25 55 No refusal B-07 7.0 12 19 19 Refusal B-08 5.75 0 5.75 33.25 Refusal B-09 6.25 0 6.25 36.25 No refusal B-10 5.75 12 17.75 47.75 No refusal B-11 5.25 0 5.25 35.25 No refusal B-12 5.5 0 5.5 35.5 No refusal B-13 7.5 0 7.5 37.5 No refusal B-14 6.5 0 6.5 6.5 Refusal B-15 7.5 0 7.5 7.5 Refusal

* Measured from top of asphalt.

GENERAL COMMENTS

Our opinions are based upon our understanding of the project, the geotechnical conditions in the area, and the data obtained from our site exploration. Natural variations will occur between exploration point locations or due to the modifying effects of construction or weather. The nature and extent of such variations may not become evident until during construction. If variations appear, we can provide further evaluation and supplemental recommendations.

Our Scope of Services does not include either specifically or by implication any environmental or biological (e.g., mold, fungi, bacteria) assessment of the site or identification or prevention of pollutants, hazardous materials or conditions. If the owner is concerned about the potential for such contamination or pollution, other studies should be undertaken.

Gettysburg, Adams County, Pennsylvania March 31, 2020 ■ Terracon Project No. JD195236

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Our services and any correspondence or collaboration through this system are intended for the sole benefit and exclusive use of our client for specific application to the project discussed and are accomplished in accordance with generally accepted geotechnical engineering practices with no third-party beneficiaries intended. Any third-party access to services or correspondence is solely for information purposes to support the services provided by Terracon to our client.

Reliance upon the services and any work product is limited to our client, and is not intended for third parties. Any use or reliance of the provided information by third parties is done solely at their own risk. No warranties, either express or implied, are intended or made.

Site characteristics as provided are for design purposes and not to estimate excavation cost. Any use of our report in that regard is done at the sole risk of the excavating cost estimator as there may be variations on the site that are not apparent in the data that could significantly impact excavation cost. Any parties charged with estimating excavation costs should seek their own site characterization for specific purposes to obtain the specific level of detail necessary for costing.

Site safety, and cost estimating including, excavation support, and dewatering requirements/design are the responsibility of others. If changes in the nature, design, or location of the project are planned, our conclusions and recommendations shall not be considered valid unless we review the changes and either verify or modify our conclusions in writing.

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ATTACHMENTS

GETT: Rehabilitation of Various Routes at Gettysburg National Military Park ■ Gettysburg, Adams County, Pennsylvania March 31, 2020 ■ Terracon Project No. JD195236

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EXPLORATION AND TESTING PROCEDURES

Field Exploration

Number of Test Holes DCP Depth Planned Location

15 (DCP) 4.75 to 55 inches as measured from top of asphalt or auger refusal

Pavement

9 Asphalt cores ONLY Pavement

Boring Layout and Elevations: Unless otherwise noted, Terracon personnel provided the boring layout. Coordinates were obtained with a handheld GPS unit (estimated horizontal accuracy of about ±10 feet) and approximate elevations were obtained by interpolation from Google Earth. If elevations and a more precise boring layout are desired, we recommend borings be surveyed following completion of fieldwork.

Subsurface Exploration Procedures: The Kessler Dynamic Cone Penetrometer (DCP) sampling procedure, a standard 5/8-inch diameter rod was driven into the ground by a 17.6-pound hammer falling a distance of 22.6 inches. The number of blows required to advance the 0.79 inch cone every 2 inches (50 millimeters) is recorded. The DCP values, are indicated on the DCP Test Data logs at the test depths. We observed and recorded groundwater levels during drilling and sampling. For safety purposes, all borings were backfilled with auger cuttings after their completion. Pavements were patched with Aquaphalt and/or pre-mixed concrete, as appropriate.

The sampling depths, penetration distances, and other sampling information was recorded on the DCP test data logs. The samples were placed in appropriate containers and taken to our soil laboratory for testing and classification by a Geotechnical Engineer. Our exploration team prepared field logs as part of the drilling operations. These field logs included visual classifications of the materials encountered during drilling and our interpretation of the subsurface conditions between samples. Final DCP logs were prepared from the field logs. The final DCP logs represent the Geotechnical Engineer's interpretation of the field logs and include modifications based on observations and tests of the samples in our laboratory.

Laboratory Testing

The project engineer reviewed the field data and assigned laboratory tests to understand the engineering properties of the various soil strata, as necessary, for this project. Procedural standards noted below are for reference to methodology in general. In some cases, variations to methods were applied because of local practice or professional judgment. Standards noted below include reference to other, related standards. Such references are not necessarily applicable to describe the specific test performed.

GETT: Rehabilitation of Various Routes at Gettysburg National Military Park ■ Gettysburg, Adams County, Pennsylvania March 31, 2020 ■ Terracon Project No. JD195236

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■ ASTM D2216 Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass

■ ASTM D4318 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils

■ ASTM D422 Standard Test Method for Particle-Size Analysis of Soils

The laboratory testing program often included examination of soil samples by an engineer. Based on the material’s texture and plasticity, we described and classified the soil samples in accordance with the Unified Soil Classification System.

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SITE LOCATION AND EXPLORATION PLANS

Contents:

Site Location Plan (6 pages) Exploration Plan (6 pages)

Note: All attachments are one page unless noted above.

SITE LOCATION

Gettysburg National Military Park Rehabilitation MSA #33944-16 ■ Gettysburg, PA March 31, 2020 ■ Terracon Project No. JD195236

TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY

QUADRANGLES INCLUDE: GETTYSBURG, PA (1/1/1994).

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

SITE

dkaradeniz Text Box

SITE LOCATION - ROUTE 200

bdmathson Polygon Line bdmathson Text Box Route 200 (US Cavalry Avenue)

EXPLORATION PLAN

March 31, 2020 ■ Terracon Project No. JD195236

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

AERIAL PHOTOGRAPHY PROVIDED

BY MICROSOFT BING MAPS

dkaradeniz

EXPLORATION PLAN - ROUTE 200

March 31, 2020 ■ Terracon Project No. JD195236

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT

INTENDED FOR CONSTRUCTION PURPOSES

TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY

QUADRANGLES INCLUDE: GETTYSBURG, PA (1/1/1994).

SITE

bdmathson Text Box

SITE LOCATION - ROUTE 201

bdmathson Polygon Line bdmathson

Route 201 (Confederate Cavalry Avenue – Gregg Avenue)

March 31, 2020 ■ Terracon Project No. JD195236

AERIAL PHOTOGRAPHY PROVIDED BY

MICROSOFT BING MAPS

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT

INTENDED FOR CONSTRUCTION PURPOSES

bdmathson

EXPLORATION PLAN - ROUTE 201

March 31, 2020 ■ Terracon Project No. JD195236

TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY

QUADRANGLES INCLUDE: GETTYSBURG, PA (1/1/1994).

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

SITE

bdmathson Text Box

SITE LOCATION - ROUTE 201

bdmathson Polygon Line bdmathson Polygon Line bdmathson

Route 201 (Confederate Cavalry Avenue – Gregg Avenue)

March 31, 2020 ■ Terracon Project No. JD195236

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

AERIAL PHOTOGRAPHY PROVIDED

BY MICROSOFT BING MAPS

bdmathson

EXPLORATION PLAN - ROUTE 201

March 31, 2020 ■ Terracon Project No. JD195236

TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY

QUADRANGLES INCLUDE: FAIRFIELD, PA (1/1/1994) and GETTYSBURG, PA

(1/1/1994).

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

SITE

bdmathson Text Box

SITE LOCATION - ROUTE 15

bdmathson Polygon Line bdmathson

Route 15 (North Sickles Avenue)

March 31, 2020 ■ Terracon Project No. JD195236

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

AERIAL PHOTOGRAPHY PROVIDED

BY MICROSOFT BING MAPS

bdmathson

EXPLORATION PLAN - ROUTE 15

March 31, 2020 ■ Terracon Project No. JD195236

TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY

QUADRANGLES INCLUDE: FAIRFIELD, PA (1/1/1994) and GETTYSBURG, PA

(1/1/1994).

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

SITE

bdmathson Text Box

SITE LOCATION - ROUTE 12

bdmathson Polygon Line bdmathson

Route 12 (South Confederate Avenue – Sykes Avenue)

March 31, 2020 ■ Terracon Project No. JD195236

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

AERIAL PHOTOGRAPHY PROVIDED

BY MICROSOFT BING MAPS

bdmathson

EXPLORATION PLAN - ROUTE 12

March 31, 2020 ■ Terracon Project No. JD195236

TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY

QUADRANGLES INCLUDE: FAIRFIELD, PA (1/1/1994) and GETTYSBURG, PA

(1/1/1994).

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

SITE

bdmathson Text Box

SITE LOCATION - ROUTE 12

bdmathson Polygon Line bdmathson

Route 12 (South Confederate Avenue – Sykes Avenue)

March 31, 2020 ■ Terracon Project No. JD195236

DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS

NOT INTENDED FOR CONSTRUCTION PURPOSES

AERIAL PHOTOGRAPHY PROVIDED

BY MICROSOFT BING MAPS

bdmathson

EXPLORATION PLAN - ROUTE 12

EXPLORATION RESULTS

Contents:

Pavement Core Photograph (24 pages) DCP Test Data (B-01, B-02, B-06, B-08 through B-13) Laboratory Test Results includes Atterberg Limits, and Grain Size Distribution (20 pages)

Project Number: JD195236

Project Name: GETT: Rehabilitation of Various Roads at Gettysburg National Military Park

Project Location: Gettysburg, Pennsylvania

Road Name Boring #

Total Asphalt

Thickness (inch)

Subbase

Thickness (inch)

Subbase Material

Total in

Place1 (inches)

US Cavalry Ave (Route 200) B-01 4.75 2.00

Crushed Aggregate

6.75

1. Borehole Thickness – Measured from the Subgrade (soil) to the Top of the Asphalt.

Surface Mix Thickness

(Inches) = 2.0 Moderate stripping from

0 to 2.0 inches

Severe stripping from

2.0 to 4.75 inches

Base Mix Thickness

(Inches) = 2.75

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) US Cavalry Ave

(Route 200) B-02 6.25 4.00 Crushed

Aggregate 10.25

(Inches) = 2.5 Little to no stripping from

0 to 2.5 inches

Severe stripping from

2.5 to 6.25 inches

(Inches) = 3.75

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) US Cavalry Ave

(Route 200) B-03 4.75 N/E N/A 4.75

2. N/E = None encountered, N/A = Not applicable

(Inches) = 2.0

(Inches) = 2.75

(Inches) = 1.75

Little to no stripping from

0 to 2.0 inches

Little to moderate stripping from

2.0 to 4.75 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) Gregg Ave (Route 201) B-04 5.25 N/E N/A 5.25

(Inches) = 2.25

(Inches) = 3.0

Little to moderate stripping from

0 to 2.25 inches

Little to no stripping from

2.25 to 5.25 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) Gregg Ave (Route 201) B-05 5.75 N/E N/A 5.75

(Inches) = 3.25

Little to moderate stripping from

0 to 2.5 inches

Little stripping from

2.5 to 5.75 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches)

Gregg Ave (Route 201) B-06 7.00 18.00

Crushed Aggregate

25.0

(Inches) = 2.25

(Inches) = 4.75

Moderate stripping from

0 to 2.25 inches

Little stripping from

2.5 to 7.0 inches

Debonding from

2.0 to 2.5 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches)

Gregg Ave (Route 201) B-07 7.00 12.00

Crushed Aggregate

19.0

0 to 2.25 inches

Surface Mix Thickness

(Inches) = 2.25

Moderate stripping from

2.25 to 7.0 inches

(Inches) = 4.75

Project Name: Gettysburg National Military Park

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) Gregg Ave (Route 201) B-08 5.75 N/E N/A 5.75

0 to 2.25 inches Surface Mix Thickness

(Inches) = 1.75

Little stripping from

2.25 to 5.75 inches

Base Mix Thickness

(Inches) = 3.75

Wear Layer Thickness

(Inches) = 0.25

1.75 to 2.25 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) Gregg Ave (Route 201) B-09 6.25 N/E N/A 6.25

Little stripping from

0 to 2.5 inches

Moderate stripping from

2.5 to 6.25 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches)

Gregg Ave (Route 201) B-10 5.75 12.00

Crushed Aggregate

17.75

Wear Layer Thickness

(Inches) = 0.25

Little to moderate stripping from

0 to 2.5 inches

Severe stripping from

2.5 to 5.75 inches

Base Mix Thickness

(Inches) = 3.75

(Inches) = 0.25-2.5

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) Gregg Ave (Route 201) B-11 5.25 N/E N/A 5.25

Moderate stripping from

0 to 1.5 inches

Severe stripping from

2.5 to 5.25 inches

Base Mix Thickness

(Inches) = 2.75

1.5 to 2.5 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) Gregg Ave (Route 201) B-12 5.5 N/E N/A 5.5

Little to moderate stripping from

0 to 3.75 inches

Moderate stripping from

3.75 to 5.0 inches

(Inches) = 3.0

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) N Sickles Ave

(Route 15) B-13 7.50 N/E N/A 7.5

0 to 0.5 inches

Little to no stripping from

2.5 to 6.0 inches

Base Mix Thickness

(Inches) = 3.5

Surface Mix Thickness

(Inches) = 4.0

Little stripping from

6.0 to 7.5 inches

Tension cracks from

1.25 to 2.25 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) N Sickles Ave

(Route 15) B-14 6.50 N/E N/A 6.5

0 to 1.25 inches Surface Mix observed through entire core.

Little stripping from

3.0 to 6.5 inches

1.75 to 3.0 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) N Sickles Ave

(Route 15) B-15 7.50 N/E N/A 7.5

Surface Mix observed through entire core.

0 to 2.75 inches

Little to moderate stripping from

2.75 to 3.25 inches

4.0 to 4.5 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-16 8.75 -- -- 8.75

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

(Inches) = 5.75

Little to no stripping from

0 to 1.5 inches

Severe stripping from

5.25 to 8.75 inches

Little stripping from

1.5 to 3.0 inches

Moderate stripping from

3.0 to 5.25 inches

Debonding from

2.75 to 3.25 inches

Base Mix Thickness

(Inches) = 3.0 Debonding from

7.0 to 7.75 inches

DRAFT

Project Name: GETT: Rehabilitation of Various Roads at Gettysburg National Military Park

Pavement Core Photograph

Road Name Boring # Total Asphalt

Thickness (inch)

Subbase Thickness

(inch) Subbase Material

Total in Place1

(inch) S Confederate

Ave B-17 7.75 -- -- 7.75

2. Subbase material was not recovered.

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-18 7.00 -- -- 7.0

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

(Inches) = 5.25

Little to no stripping from

0 to 2.0 inches

Severe stripping from

5.25 to 7.0 inches

Moderate stripping from

3.25 to 5.25 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-19 7.25 -- -- 7.25

1. Borehole Thickness – Measured from the Subgrade (soil) to the Top of the Asphalt.

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

Surface Mix Thickness

(Inches) = 4.75

Little to no stripping from

0 to 1.25 inches

Severe stripping from

4.5 to 7.25 inches

Moderate stripping from

1.25 to 4.5 inches

Debonding from

2.5 to 3.0 inches

4.5 to 5.0 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-20 5.25 -- -- 5.25

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

No stripping from

0 to 1.5 inches

Moderate stripping from

1.5 to 5.25 inches

3.25 to 3.75 inches

Project Name: Gettysburg National Military

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-21 8.0 -- -- 8.0

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

0 to 1.5 inches

Surface Mix observed through entire core.

Little to no stripping from

3.0 to 5.5 inches

Little to moderate stripping from

1.5 to 3.0 inches

Moderate to severe stripping from

5.5 to 8.0 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-22 5.50 -- -- 5.5

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

0 to 2.5 inches

Surface Mix observed through entire core.

Little to moderate stripping from

2.5 to 4.5 inches

Debonding from

3.75 to 4.75 inches

4.5 to 5.5 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-23 5.50 -- -- 5.5

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

0 to 1.5 inches

1.5 to 5.5 inches

3.25 to 3.75 inches

Thickness (inch)

Subbase Thickness

(inch)

Subbase Material

Total in Place1

(inches) S Confederate Ave

(Route 12) B-24 9.0 -- -- 9.0

2. Per the parks request the subbase material was not to be disturbed; therefore it was not measured.

0 to 5.25 inches Surface Mix Thickness

(Inches) = 5.25

Debonding from

2.75 to 3.5 inches

Severe stripping from

5.25 to 9.0 inches

DCP TEST DATA

Project: JD195236 Date: 6-Dec-19 Location: B-01 Soil Type(s): Lean Clay (CL)

Avg. CBR = 5%

No. of Accumulative Blows Penetration

(mm)*

0 171 CL

2 220 CL

2 270 CL

3 320 CL

2 370 CL

2 420 CL

1 470 CL

1 520 CL

1 570 CL

2 620 CL

1 670 CL

1 720 CL

3 770 CL

4 820 CL

3 870 CL

5 920 CL

USCS

Classification

*The DCP readings start below the asphalt and subbase at 6.75 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

,m m

Location: B-02 Soil Type(s): Sandy Lean Clay with Gravel (CL)

Avg. CBR = 9%

No. of Accumulative Blows Penetration

(mm)*

0 260 CL

4 310 CL

3 360 CL

2 410 CL

2 460 CL

1 510 CL

2 560 CL

3 610 CL

4 660 CL

2 710 CL

5 760 CL

4 810 CL

6 860 CL

5 910 CL

5 960 CL

6 1010 CL

*The DCP readings start below the asphalt and subbase at 10.25 inches.

USCS

Classification

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-03 **Soil Type(s): Non recovered

#Avg. CBR = N/A

No. of Accumulative Blows Penetration

(mm)*

#N/A = not applicable due to DCP refusal on rock.

DCP Refusal

*The DCP readings start below the asphalt at 4.75 inches.

**Soil was not able to be recovered due to the refusal of the DCP.

USCS

Classification

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Project: JD195236 Date: 5-Dec-19 Location: B-04 **Soil Type(s): Non recovered

#Avg. CBR = N/A

No. of Accumulative Blows Penetration

(mm)*

**Soil was not able to be recovered due to the refusal of the DCP.

#N/A = not applicable due to DCP refusal on rock.

DCP Refusal

*The DCP readings start below the asphalt at 5.25 inches.

USCS

Classification

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-05 **Soil Type(s): Non recovered

#Avg. CBR = N/A

No. of Accumulative Blows Penetration

(mm)*

**Soil was not able to be recovered due to the refusal of the DCP.

#N/A = not applicable due to DCP refusal on rock.

DCP Refusal

*The DCP readings start below the asphalt at 5.75 inches.

USCS

Classification

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-06 Soil Type(s): Silty Gravel with Sand (GM)

Avg. CBR = 15%

No. of Accumulative Blows Penetration

(mm)*

0 635 GM

13 685 GM

10 735 GM

3 785 GM

2 835 GM

3 885 GM

2 935 GM

3 985 GM

2 1035 GM

3 1085 GM

4 1135 GM

5 1185 GM

5 1235 GM

4 1285 GM

7 1335 GM

13 1385 GM

USCS

Classification

*The DCP readings start below the asphalt and subbase at 25.0 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-07 **Soil Type(s): Non recovered

#Avg. CBR = N/A

No. of Accumulative Blows Penetration

(mm)*

#N/A = not applicable due to DCP refusal on rock.

DCP Refusal

USCS

Classification

*The DCP readings start below the asphalt and subbase at 19.0 inches.

**Soil was not able to be recovered due to the refusal of the DCP.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-08 Soil Type(s): Clayey Sand (SC)

Avg. CBR = 15% (Refusal)

No. of Accumulative Blows Penetration

(mm)*

0 146 SC

5 195 SC

4 245 SC

2 295 SC

3 345 SC

2 395 SC

3 445 SC

4 495 SC

8 545 SC

11 595 SC

13 645 SC

14 695 SC

20 745 SC

25 795 SC

30 845 SC

USCS

Classification

DCP Refusal

*The DCP readings start below the asphalt at 5.75 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-09 Soil Type(s): Silt with Sand (ML)

Avg. CBR = 10%

No. of Accumulative Blows Penetration

(mm)*

0 159 ML

3 210 ML

4 260 ML

4 310 ML

2 360 ML

3 410 ML

2 460 ML

3 510 ML

2 560 ML

2 610 ML

2 660 ML

2 710 ML

3 760 ML

3 810 ML

3 860 ML

3 910 ML

USCS

Classification

*The DCP readings start below the asphalt at 6.25 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-10 Soil Type(s): Clayey Gravel with Sand (GC)

Avg. CBR = 12%

No. of Accumulative Blows Penetration

(mm)*

0 451 GC

3 500 GC

3 550 GC

5 600 GC

3 650 GC

2 700 GC

2 750 GC

2 800 GC

4 850 GC

8 900 GC

11 950 GC

13 1000 GC

19 1050 GC

15 1100 GC

11 1150 GC

12 1200 GC

USCS

Classification

*The DCP readings start below the asphalt and subbase at 17.75 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-11 Soil Type(s): Gravelly Lean Clay (CL)

Avg. CBR = 10%

No. of Accumulative Blows Penetration

(mm)*

0 133 CL

5 185 CL

2 235 CL

2 285 CL

2 335 CL

1 385 CL

3 435 CL

3 485 CL

5 535 CL

5 585 CL

4 635 CL

6 685 CL

7 735 CL

8 785 CL

10 835 CL

8 885 CL

USCS

Classification

*The DCP readings start below the asphalt at 5.25 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-12 Soil Type(s): Fat Clay with Sand (CH)

Avg. CBR = 18%

No. of Accumulative Blows Penetration

(mm)*

0 140 CH

4 190 CH

2 240 CH

2 290 CH

2 340 CH

2 390 CH

3 440 CH

3 490 CH

2 540 CH

3 590 CH

4 640 CH

5 690 CH

8 740 CH

10 790 CH

15 840 CH

14 890 CH

USCS

Classification

*The DCP readings start below the asphalt at 5.5 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-13 Soil Type(s): Lean Clay with Sand (CL)

Avg. CBR = 15%

No. of Accumulative Blows Penetration

(mm)*

0 190 CL

6 240 CL

2 290 CL

3 340 CL

4 390 CL

4 440 CL

6 490 CL

6 540 CL

6 590 CL

7 640 CL

6 690 CL

8 740 CL

6 790 CL

7 840 CL

6 890 CL

9 940 CL

USCS

Classification

*The DCP readings start below the asphalt at 7.5 inches.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-14 **Soil Type(s): Non recovered

#Avg. CBR = N/A

No. of Accumulative Blows Penetration

(mm)*

#N/A = not applicable due to DCP refusal on rock.

USCS

Classification

DCP Refusal

*The DCP readings start below the asphalt at 6.5 inches.

**Soil was not able to be recovered due to the refusal of the DCP.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

D

EP

TH

Location: B-15 **Soil Type(s): Non recovered

#Avg. CBR = N/A

No. of Accumulative Blows Penetration

(mm)*

#N/A = not applicable due to DCP refusal on rock.

USCS

Classification

DCP Refusal

*The DCP readings start below the asphalt at 7.5 inches.

**Soil was not able to be recovered due to the refusal of the DCP.

0.1 1.0 10.0 100.0

0.1 1.0 10.0 100.0

D

EP

TH

,i n.

CBR

DE

PT

H

0 20 40 60 80 100

CH

o r

OH

CL

OL

ML or OL

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-1

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R T

A

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-01

LL

82230

Boring ID Depth PL PI

0.4 - 2.4 CL SANDY LEAN CLAY

DescriptionUSCSFines

66.7

CL-ML

bdmathson

6.75 - 28.75

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-2

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-02

LL

172138

Boring ID Depth PIPL

0.5 - 2.5 CL SANDY LEAN CLAY with GRAVEL

DescriptionUSCSFines

62.4

CL-ML

bdmathson

10.25 - 30.0

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-3

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-06

LL

NPNPNP

Boring ID Depth PIPL

2.1 - 4.1 GM SILTY GRAVEL with SAND

DescriptionUSCSFines

26.8

CL-ML

bdmathson

25.0 - 49.0

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-4

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-07

LL

51722

Boring ID Depth PIPL

0.6 - 1.6 GP-GC POORLY GRADED GRAVEL with SILTY CLAY and SAND

DescriptionUSCSFines

11.3

CL-ML

bdmathson

6.75 - 18.0

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-5

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-08

LL

112334

Boring ID Depth PIPL

1.5 - 3.5 SC CLAYEY SAND

DescriptionUSCSFines

21.7

CL-ML

bdmathson

5.75 - 17.75

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-6

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-09

LL

102535

Boring ID Depth PIPL

1.5 - 3.5 ML SILT with SAND

DescriptionUSCSFines

70.6

CL-ML

bdmathson

18.5 - 35.0

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-7

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-10

LL

142135

Boring ID Depth PIPL

1.5 - 3.5 GC CLAYEY GRAVEL with SAND

DescriptionUSCSFines

47.5

CL-ML

bdmathson

17.75 - 41.25

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-8

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-11

LL

272148

Boring ID Depth PIPL

1.4 - 3.4 CL GRAVELLY LEAN CLAY

DescriptionUSCSFines

64.0

CL-ML

bdmathson

5.25 - 17.25

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-9

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-12

LL

322456

Boring ID Depth PIPL

0.5 - 2.5 CH FAT CLAY with SAND

DescriptionUSCSFines

73.7

CL-ML

bdmathson

5.5 - 29.5

0 20 40 60 80 100

CH

MH or OH

"U " L ine

"A " L ine

ATTERBERG LIMITS RESULTS

ASTM D4318

P L A S T I C I T Y

I N D E X

LIQUID LIMIT

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-10

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

T E

R B

E R

G L

IM

IT

S J

D

G E

T T

Y S

B U

R G

N A

T

IO

N A

L M

IL

IT

A R

Y P

A R

K R

E H

A B

A N

D G

E T

T Y

S B

U R

G V

IS

IT

O R

S C

E N

T E

R C

O M

B

IN

E D

.G P

J T

E R

R A

C O

N _D

A T

A T

E M

P

LA

T E

.G D

T

/1 9/

B-13

LL

182543

Boring ID Depth PIPL

0.6 - 2.6 CL LEAN CLAY with SAND

DescriptionUSCSFines

75.1

CL-ML

bdmathson

7.5 - 31.25

0.0010.010.1110100

3/4 1/23/8 30 403 60

HYDROMETERU.S. SIEVE OPENING IN INCHES

16 20

U.S. SIEVE NUMBERS

44 10063 2 10 14 506 2001.5 81 140

P E

R C

E N

T F

IN

E

R B

Y W

E

IG

H T

P E

R C

E N

T C

O A

R S

E R

B Y

W E

IG

H

T

GRAIN SIZE DISTRIBUTION

ASTM D422 / ASTM C136

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-1

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

G R

A

IN

S

IZ

E : U

S C

S

J D

G

E T

T Y

S B

U R

G N

A T

IO

N

A L

M

IL

IT

A

R Y

P A

R K

R E

H A

B A

N D

G E

T T

Y S

B U

R G

V

IS

IT

O

R S

C E

N T

E R

C O

M B

IN

E

D .G

P J

T E

R R

A C

O N

_D A

T A

T E

M P

LA

T

E .G

D T

/1

9/

D30

% SAND% GRAVEL% COBBLES

COEFFICIENTS

coarse

BORING ID

CU

SOIL DESCRIPTION

66.7

REMARKS

GRAIN SIZE

DEPTH

SILT OR CLAYCOBBLES

GRAVEL SAND

mediumfine coarse fine

SieveSieveSieve

100.0 97.1 89.54 79.29 73.42 71.14 69.68 68.62 66.75

% Finer% Finer% Finer

% SILT

CC

D10

22.80.0B-01

USCS% CLAY% FINES

D60

0.4 - 2.4 10.5

SANDY LEAN CLAY (CL)

CL

3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 bdmathson Typewriter

6.75 - 28.75

0.0010.010.1110100

3/4 1/23/8 30 403 60

HYDROMETERU.S. SIEVE OPENING IN INCHES

16 20

U.S. SIEVE NUMBERS

44 10063 2 10 14 506 2001.5 81 140

P E

R C

E N

T F

IN

E

R B

Y W

E

IG

H T

P E

R C

E N

T C

O A

R S

E R

B Y

W E

IG

H

T

GRAIN SIZE DISTRIBUTION

ASTM D422 / ASTM C136

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-2

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

A

IN

S

IZ

E : U

S C

S

J D

G

E T

T Y

S B

U R

G N

A T

IO

N

A L

M

IL

IT

A

R Y

P A

R K

R E

H A

B A

N D

G E

T T

Y S

B U

R G

V

IS

IT

O

R S

C E

N T

E R

C O

M B

IN

E

D .G

P J

T E

R R

A C

O N

_D A

T A

T E

M P

LA

T

E .G

D T

/1

9/

D30

% SAND% GRAVEL% COBBLES

COEFFICIENTS

coarse

BORING ID

CU

SOIL DESCRIPTION

62.4

REMARKS

GRAIN SIZE

DEPTH

SILT OR CLAYCOBBLES

GRAVEL SAND

mediumfine coarse fine

SieveSieveSieve

100.0 92.56 83.28 74.81 69.5 66.6 64.89 63.58 62.35

% Finer% Finer% Finer

% SILT

CC

D10

20.90.0B-02

USCS% CLAY% FINES

D60

0.5 - 2.5 16.7

SANDY LEAN CLAY with GRAVEL (CL)

CL

3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 bdmathson

10.25 - 30.0

0.0010.010.1110100

3/4 1/23/8 30 403 60

HYDROMETERU.S. SIEVE OPENING IN INCHES

16 20

U.S. SIEVE NUMBERS

44 10063 2 10 14 506 2001.5 81 140

P E

R C

E N

T F

IN

E

R B

Y W

E

IG

H T

P E

R C

E N

T C

O A

R S

E R

B Y

W E

IG

H

T

GRAIN SIZE DISTRIBUTION

ASTM D422 / ASTM C136

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-3

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

A

IN

S

IZ

E : U

S C

S

J D

G

E T

T Y

S B

U R

G N

A T

IO

N

A L

M

IL

IT

A

R Y

P A

R K

R E

H A

B A

N D

G E

T T

Y S

B U

R G

V

IS

IT

O

R S

C E

N T

E R

C O

M B

IN

E

D .G

P J

T E

R R

A C

O N

_D A

T A

T E

M P

LA

T

E .G

D T

/1

9/

D30

% SAND% GRAVEL% COBBLES

COEFFICIENTS

coarse

BORING ID

CU

SOIL DESCRIPTION

26.8

REMARKS

GRAIN SIZE

DEPTH

SILT OR CLAYCOBBLES

GRAVEL SAND

mediumfine coarse fine

SieveSieveSieve

100.0 59.74 57.19 48.07 41.29 35.8 32.57 30.68 29.13 26.81

% Finer% Finer% Finer

% SILT

CC

D10

19.084

0.2

21.30.0B-06

USCS% CLAY% FINES

D60

2.1 - 4.1 51.9

SILTY GRAVEL with SAND (GM)

GM

1 1/2" 3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 bdmathson

25.0 - 49.0

0.0010.010.1110100

3/4 1/23/8 30 403 60

HYDROMETERU.S. SIEVE OPENING IN INCHES

16 20

U.S. SIEVE NUMBERS

44 10063 2 10 14 506 2001.5 81 140

P E

R C

E N

T F

IN

E

R B

Y W

E

IG

H T

P E

R C

E N

T C

O A

R S

E R

B Y

W E

IG

H

T

GRAIN SIZE DISTRIBUTION

ASTM D422 / ASTM C136

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-4

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

A

IN

S

IZ

E : U

S C

S

J D

G

E T

T Y

S B

U R

G N

A T

IO

N

A L

M

IL

IT

A

R Y

P A

R K

R E

H A

B A

N D

G E

T T

Y S

B U

R G

V

IS

IT

O

R S

C E

N T

E R

C O

M B

IN

E

D .G

P J

T E

R R

A C

O N

_D A

T A

T E

M P

LA

T

E .G

D T

/1

9/

D30

% SAND% GRAVEL% COBBLES

COEFFICIENTS

coarse

BORING ID

154.44CU

SOIL DESCRIPTION

11.3

REMARKS

GRAIN SIZE

DEPTH

SILT OR CLAYCOBBLES

GRAVEL SAND

mediumfine coarse fine

SieveSieveSieve

100.0 75.07 65.6 47.59 33.85 23.79 18.76 15.81 13.59 11.34

% Finer% Finer% Finer

% SILT

CC

D10

5.47

7.657

1.441

36.20.0B-07

USCS% CLAY% FINES

D60

0.6 - 1.6 52.4

POORLY GRADED GRAVEL with SILTY CLAY and SAND (GP-GC)

GP-GC

1 1/2" 3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 bdmathson

6.75 - 18.0

0.0010.010.1110100

3/4 1/23/8 30 403 60

HYDROMETERU.S. SIEVE OPENING IN INCHES

16 20

U.S. SIEVE NUMBERS

44 10063 2 10 14 506 2001.5 81 140

P E

R C

E N

T F

IN

E

R B

Y W

E

IG

H T

P E

R C

E N

T C

O A

R S

E R

B Y

W E

IG

H

T

GRAIN SIZE DISTRIBUTION

ASTM D422 / ASTM C136

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-5

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

A

IN

S

IZ

E : U

S C

S

J D

G

E T

T Y

S B

U R

G N

A T

IO

N

A L

M

IL

IT

A

R Y

P A

R K

R E

H A

B A

N D

G E

T T

Y S

B U

R G

V

IS

IT

O

R S

C E

N T

E R

C O

M B

IN

E

D .G

P J

T E

R R

A C

O N

_D A

T A

T E

M P

LA

T

E .G

D T

/1

9/

D30

% SAND% GRAVEL% COBBLES

COEFFICIENTS

coarse

BORING ID

CU

SOIL DESCRIPTION

21.7

REMARKS

GRAIN SIZE

DEPTH

SILT OR CLAYCOBBLES

GRAVEL SAND

mediumfine coarse fine

SieveSieveSieve

100.0 98.62 90.45 71.87 52.69 38.79 30.59 25.3 21.67

% Finer% Finer% Finer

% SILT

CC

D10

1.178

0.236

68.80.0B-08

USCS% CLAY% FINES

D60

1.5 - 3.5 9.6

CLAYEY SAND (SC)

SC

3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 bdmathson

5.75 - 17.75

0.0010.010.1110100

3/4 1/23/8 30 403 60

HYDROMETERU.S. SIEVE OPENING IN INCHES

16 20

U.S. SIEVE NUMBERS

44 10063 2 10 14 506 2001.5 81 140

P E

R C

E N

T F

IN

E

R B

Y W

E

IG

H T

P E

R C

E N

T C

O A

R S

E R

B Y

W E

IG

H

T

GRAIN SIZE DISTRIBUTION

ASTM D422 / ASTM C136

PROJECT NUMBER: JD195236

PROJECT: Gettysburg National Military Park

Rehabilitation of Various Routes

SITE: 1195 Baltimore Pike Gettysburg, PA

CLIENT: VHB Inc Richmond, VA

EXHIBIT: B-6

19955 Highland Vista Dr Ste 170 Ashburn, VA

LA

B

O R

A T

O R

Y T

E S

T S

A R

E N

O T

V A

LI

D

IF

S

E P

A R

A T

E D

F R

O M

O R

IG

IN

A L

R E

P O

R

A

IN

S

IZ

E : U

S C

S

J D

G

E T

T Y

S B

U R

G N

A T

IO

N

A L

M

IL

IT

A

R Y

P A

R K

R E

H A

B A

N D

G E

T T

Y S

B U

R G

V

IS

IT

O

R S

C E

N T

E R

C O

M B

IN

E

D .G

P J

T E

R R

A C

O N

_D A

T A

T E

M P

LA

T

E .G

D T

/1

9/

D30

% SAND% GRAVEL% COBBLES

COEFFICIENTS

coarse

BORING ID

CU

SOIL DESCRIPTION

70.6

REMARKS

GRAIN SIZE

DEPTH

SILT OR CLAYCOBBLES

GRAVEL SAND

mediumfine coarse fine

SieveSieveSieve

100.0 97.45 90.78 82.31 76.87 74.42 73.12 71.97 70.64

% Finer% Finer% Finer

% SILT

CC

D10

20.10.0B-09

USCS% CLAY% FINES

D60

1.5 - 3.5 9.2

SILT with SAND (ML)

ML

3/4" 3/8" #4 #10 #20 #40…