B.08.02 MCSF-BI_GDR_FY20_Final.pdf

SECTION 00 31 32

Geotechnical Data Report for

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging

38-Foot Project Duval County, Florida

Prepared by

Geosystems Branch

Engineering Division

Jacksonville District Corps of Engineers

October 2019

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project Duval County, Florida

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GEOTECHNICAL DATA REPORT

Table of Contents

1 SCOPE

2 CHARACTER OF MATERIALS

2.1 The Local Geology

2.2 Materials Encountered

3 DEFINITIONS

3.1 Definitions of Basic Terms

3.2 Current Logging Terms

3.3 Previous Logging Terms

3.4 Testing and Procedure Methods

4 GEOTECHNICAL DATA

4.1 Summary of Field Investigations

4.2 Summary of Index Testing Data

4.3 Summary of Additional Laboratory Testing Data

4.4 Boring Log Notes

4.5 Inspection of Recovered Materials

4.6 Boring Logs

4.7 Laboratory Testing Data

List of Tables

Table 1. Available Boring Data Table 2. Available Vibracore Data Table 3. Available Surficial Samples Data Table 4: Index Testing Available for this Project Table 5. Available Sedimentation Rate Data

List of Plates

Plate 1. Vicinity Map Plate 2. Location of Field Investigations Plate 3. Location of Field Investigations

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GEOTECHNICAL DATA REPORT

1 SCOPE

The information provided in this section encompasses the geotechnical field investigations available for this project. The investigations consist of borings. The associated boring logs and laboratory data are presented in paragraphs 4.6 and 4.7, respectively. A character of materials paragraph is included to provide a comprehensive description of the materials utilizing both recent and historical knowledge of the project area. Also included in this section are definitions of terms and boring log notes, which provide additional explanation of the boring logs and drilling techniques.

Items discussed in the character of materials paragraph may not appear explicitly on the boring logs. Based on historic knowledge of the project area, the character of materials paragraph includes items that supplement the data documented by the boring logs. When reviewing the boring logs, use all of the data on the logs, including the materials description, legend, and blow counts. When evaluating the subsurface conditions, use all of the data, including the character of materials paragraph and boring logs.

During the solicitation period, any questions that pertain to the information provided in this section should be addressed to the contract specialist identified in Block 9 of SF1442. After contract award, questions should be addressed to the appointed ACO/COR, which will coordinate with Geotechnical Branch.

2 CHARACTER OF MATERIALS

2.1 THE LOCAL GEOLOGY

The sediments which occur in the project area are of Holocene and Pleistocene age (10 kya to 2.6 mya). These were deposited during the formation of marine terraces and beach ridges and blanket all of Duval County. They were deposited on a slightly irregular, undulating surface of upper Miocene or Pliocene aged (2.6 to 23 mya) deposits.

The sediments consist primarily of tan to yellow, medium to fine grained quartz sand, which are locally stained rusty brown or red due to iron oxide. Locally there are thin gray sandy clay beds that in places contain mollusk shells, particularly near the coast. The thickness of these sediments ranges from less than 10 feet in the St. Johns River valley to about 100 feet in western Duval County. The sediments are thickest below the ridges and in places where they overlie depressions in the upper surface of the upper Miocene or Pliocene deposits.

The areas adjacent to the St. Johns River that are being dredged in this project are mostly the Holocene and Pleistocene deposits that are mentioned above. The channel cuts into sediments of Miocene or Pliocene age which occur below dredge depth for this project.

2.2 MATERIALS ENCOUNTERED

Recent investigations using core boring and vibracore methods, surface samples, and historical knowledge of the project area were used to describe the character of the material to be dredged.

The borings and surficial samples included in this GDR were collected in 2005, 2008, 2009, and 2017. The material in the channel consists of shoaled material deposited since the last dredging event in 2019, and includes silt, clay, shell and fine to medium grained quartz sand in various thicknesses.

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The materials within the dredge template presented on the boring logs and sediment gradation curves have been removed during previous dredging events, with subsequent shoaling of similar material. The boring logs still provide valid information about the character of materials in and below the dredge template, including the side slopes, and, thus, indicate what type of dredge material can be expected during dredging. Based on past dredging events, occasional gravel to cobble sized pieces of moderately hard, weathered limestone and sandstone, may be encountered. Larger rock, up to boulder size, and debris is present beneath the dredge template.

In-situ rock, if encountered, is not required to be dredged.

A concrete sill is located within the project area at an elevation of -37.6 feet MLLW, which is within the required project dredge depth. A construction event to remove the concrete sill to a depth of -47 feet MLLW will begin in 2020. Discrete mounds of rock generated from removal of the sill may be present in the vicinity of the sill below -38 feet MLLW.

3 DEFINITIONS

Definitions not explicitly indicated in the sections below are typical industry standard definitions from their respective ASTMs.

3.1 DEFINITIONS OF BASIC TERMS

Carbonate – Soil component that reacts with HCl of an indeterminate origin (shell, rock, etc.).

Fill – Material that has been placed by man, described with all soil characteristics.

Layer – Rock or soil with a thickness of 6 inches or less.

Lens – A geologic deposit of variable thickness, which disappears laterally in all directions and cannot be correlated to adjacent borings.

Rock – A naturally occurring substance composed of one or more minerals bound together. This geologic term includes a range of engineering properties: strength, hardness, permeability, weathering, and discontinuity. These properties are noted or can be inferred from the boring logs as blow counts, penetration rate, RQD, hardness, etc.

Shell – Material composed of predominantly (>75%) coarse-grained sand to gravel-sized whole or broken shell.

3.2 CURRENT LOGGING TERMS

Definition of terms used on boring logs dated since 2000:

Banded - 0.02' (6 mm) to 0.1' (3.0 cm).

Boulder-Sized – Particles greater than 12 inches in diameter.

Cavity - Voids greater than the diameter of the core.

Coarse Grained - Grain diameter greater than 0.079" (2 mm) for sedimentary rocks or 0.197" (5

mm) for igneous or metamorphic rocks.

Coarse Grained Sand-Sized – Less than 10 percent of fine and medium grained sand sizes are present.

Coarse Gravel-Sized – Particles greater than 3/4 of an inch but less than 3 inches in diameter.

Cobble-Sized – Particles greater than 3 inches but less than 12 inches in diameter.

Decomposed – Applicable to saprolitic rock; rock is essentially reduced to a soil with a relic rock texture; can be molded or crumbled by hand.

Dipping (Dip) - 20 to 45 degrees.

Discontinue – Particles were present within the unit above but are no longer present.

Fine Grained - Grain diameter between 0.004" (0.1 mm) and 0.016" (0.4 mm) for sedimentary rocks or 0.039" (1 mm) for igneous or metamorphic rocks.

Fine Grained Sand-Sized - Less than 10 percent of medium and coarse grained sand sizes are present.

Fine Gravel-Sized – Particles greater than No. 4 sieve but less than 3/4 of an inch in diameter.

Flat (Dip) - 0 to 20 degrees.

Fossiliferous – Greater than 40 percent fossils.

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Hard (Hardness) - Difficult to scratch with a knife (cannot be pitted with a geology hammer, but can be chipped with moderate blows of the hammer).

Highly Fractured - Spacing 0.3' (9.1 cm) to 1' (30.5 cm).

Highly Weathered - Entire section is discolored; alteration is greater than 50%; some areas of slightly weathered rock are present; some minerals are leached away; retains only a fraction of its original strength (wet strength usually lower than dry strength).

Intact – Spacing greater than 6' (1.8 m).

Intensely Fractured - Spacing less than 0.3' (9.1 cm).

Massive – Over 3' (0.9 m) thick.

Medium-Bedded - 0.3' (9.1 cm) to 1' (30.5 cm) thick.

Medium Grained - Grain diameters between 0.016" (0.4 mm) to 0.079" (2 mm) for sedimentary rocks or 0.039" (1 mm) to 0.197" (5 mm) for igneous or metamorphic rocks.

Medium Grained Sand-Sized - Less than 10 percent of fine and coarse grained sand sizes are present.

Moderately Fractured - Spacing 1' (30.5 cm) to 3' (0.9 m).

Moderately Hard (Hardness) - Can be scratched easily with a knife, but cannot be scratched by a fingernail (can be pitted with moderate blows of a geology hammer).

Moderately Open (Fracture Aperture) - 0.020" (0.5 mm) to 0.098" (2.5 mm).

Moderately Weathered - Discoloration is evident; surface is pitted and altered, with alterations penetrating well below rock surfaces; 10% to 50% of the rock is altered; strength is noticeably less than unweathered rock.

Non-fossiliferous – No observed fossils.

Open (Fracture Aperture) - 0.098" (2.5 mm) to 0.394" (10 mm).

Pitted - Voids 0.039" (1mm) to 0.236" (6mm) in diameter.

Porous - Voids less than 0.039" (1mm) in diameter.

Slightly Fractured - Spacing 3' (0.9 m) to 6' (1.8 m).

Slightly Weathered - Superficial discoloration, alteration and/or discoloration along discontinuities;

less than 10% of the rock volume is altered; strength is essentially unaffected.

Soft (Hardness) - Can be scratched with a fingernail (cannot be crumbled between fingers, but can be easily pitted with light blows of a geology hammer).

Solid - Absence of voids.

Sparsely Fossiliferous – Less than 40 percent fossils.

Steeply Dipping (Dip) - 45 to 90 degrees.

Thick-Bedded – 1' (30.5 cm) to 3' (0.9 m) thick.

Thin-Bedded - 0.1' (3.0 cm) to 0.3' (9.1 cm) thick.

Thin Parting - Paper thin to 0.002' (0.6 mm).

Tight (Fracture Aperture) - 0.004" (0.1 mm) to 0.020" (0.5 mm).

Unweathered - No evidence of any mechanical or chemical alteration.

Very Fine Grained - Grain diameter less than 0.004" (0.1 mm); individual grains or crystals are too small to be seen with the naked eye.

Very Hard (Hardness) - Cannot be scratched with a knife (chips can be broken off only with heavy blows of a geology hammer).

Very Soft (Hardness) - Can be deformed by hand (has a rock-like character, but can be easily broken by hand).

Very Tight (Fracture Aperture) - less than 0.004" (0.1 mm).

Very Wide (Fracture Aperture) - 0.394" (10 mm) to 0.984" (25 mm).

Vuggy - Voids 0.236" (6mm) to the diameter of the core.

3.3 PREVIOUS LOGGING TERMS

Definition of terms used on boring logs dated before 2000:

Dense – Equivalent to SPT N-value of 30 to 50.

Incompetent – Rock that disintegrates while coring; weak.

Indurated – Rock or soil hardened or consolidated by pressure or cementation. Very difficult to break by hand.

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Poorly-Indurated – See semi-indurated.

Seam – Rock or soil with average thickness of 2 to 3 inches.

Semi-Indurated – Rock or soil with a lesser degree of hardening or consolidation by pressure or cementation. Crumbles with little effort by hand.

3.4 TESTING AND PROCEDURE METHODS

Test/Procedure Method Abrasion Resistance of Large-Size Coarse Aggregate, Los Angeles Machine ASTM C535

Abrasion Resistance of Small-Size Coarse Aggregate, Los Angeles Machine ASTM C131

Air Content by the Pressure Method ASTM C231 Air Content by the Volumetric Method ASTM C173 Air-Entraining Admixtures for Concrete ASTM C233 Atterberg Limits, wet preparation method, test method a multipoint ASTM D4318 Bulk Specific Gravity of Bituminous Mixtures ASTM D2726 Capping Cylindrical Concrete Specimens ASTM C617 Carbonate Content ASTM D4373 Compaction: 4" Mold, Modified Proctor ASTM D1557 Compaction: 4" Mold, Standard Proctor ASTM D698 Compaction: 6" Mold, Modified Proctor ASTM D1557 Compaction: 6" Mold, Standard Proctor ASTM D698 Compressive Strength of Cast in Place Concrete Cylinders ASTM C873 Compressive Strength of Cylindrical Concrete Specimens (Set of 4) ASTM C39 Compressive Strength of Lightweight Concrete ASTM C495 Consolidation, each load of rebound increment with complete time ASTM D2435

Density and Water Content of Soil by Nuclear Methods (Minimum 4) ASTM D2922/D3017

Density of Bituminous Concrete in Place by Nuclear Methods (Minimum 4) ASTM D2950

Density of Soil in Place by the Sand-Cone Method ASTM D1556 Direct Shear ASTM D3080 Drilled Cores and Sawed Beams of Concrete ASTM C42 Extraction of Bituminous Paving Mixtures ASTM D2172 Freezing and Thawing (up to 55 cycles) ASTM D5312 Grain size sieve Analysis ASTM D422 Hydrometer Analysis ASTM D422 Making and Curing Concrete Test Specimens in the Field (Set of 6) ASTM C31 Making and Curing Concrete Test Specimens in the Lab (Set of 4) ASTM C192 Marshall Resistance to Plastic Flow (Set of 3) ASTM D1559 Material Passing No. 200 Sieve ASTM D1140 Modulus of Elasticity ASTM D3148 Moisture Content ASTM D2216

Munsell Color Munsell Soil Color Charts

Organic Content, Test Method C ASTM D2974 Organic Impurities in Fine Aggregate ASTM C40 Permeability: Constant Head Permeability ASTM D2434 Permeability: Falling Head Permeability ASTM D5084

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Test/Procedure Method Petrographic Examination ASTM C295 Sampling Aggregate (Minimum 4 hours) ASTM D75 Sampling Freshly Mixed Concrete ASTM C172 Sedimentation Rate No ASTM Sieve Analysis of Aggregate ASTM C136 Slump of Hydraulic-Cement Concrete ASTM C143 Soil Classification (Boring logs) ASTM D 2488 Specific Gravity and Absorption of Fine Aggregate ASTM C128 Specific Gravity for Rock ASTM C127 Specific Gravity for Soil ASTM D854

SPLITTING TENSILE STRENGTH ASTM D3967

Splitting Tensile Strength of Concrete Cylinders ASTM C496 Subsample Preparation ASTM D4220, Group B ASTM D4220, Sulfate Soundness ASTM C88 Total Evaporable Moisture Content ASTM C566 Triaxial Compression Test for Rock with Strain Gages or LVDTs (per confining pressure) ASTM D2664

Triaxial compression: Consolidated Undrained (CU) Triaxial Compression Test R Test with Pore Pressure Measurements (per confining pressure)

ASTM D4767

Triaxial compression: Unconsolidated Undrained (UU) Triaxial Compression Test Q Test with Pore Pressure Measurements (per confining pressure)

ASTM D2850

Unbonded Caps for Compressive Strength ASTM C1231 Unconfined Compressive Strength for Rock Greater than 9,000 psi with Strain ASTM D2938

Unconfined Compressive Strength for Rock up to 9,000 psi with Strain ASTM D2938

Unconfined Compressive Strength for Soil ASTM D2166 Unit Weight and Absorption ASTM C127 Unit Weight of Aggregate ASTM C29 - Visual Percent Shell No ASTM Wetting and Drying ASTM D5313

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4 GEOTECHNICAL DATA

4.1 SUMMARY OF FIELD INVESTIGATIONS

The tables below summarize the field investigations data set available for this project.

Table 1. Available Boring Data

Sample Designation

State Plane, FL-East, NAD83 Available for Inspection

Project Location X Y

CB-BIMC08-1 490515 2205814 ✓

US MCSF-

Blount Island

Channel

CB-BIMC08-2 490630 2206137 ✓

CB-BIMC08-3 491101 2205619 ✓

CB-BIMC08-4 491180 2205690 ✓

CB-BIMC08-5 491065 2205488 ✓

CB-BIMC08-6 491397 2205305 ✓

CB-BIMC08-7 491879 2205343 ✓

CB-BIMC08-8 492139 2204806 ✓

CB-BIMC08-9 492796 2204793 ✓

CB-BIMC08-10 493065 2204206 ✓

CB-BIMC08-11 493547 2204244 ✓

CB-BIMC08-12 493825 2203728 ✓

CB-BIMC08-13 494429 2203695 ✓

CB-BIMC08-14 493903 2203566 ✓

CB-BIMC09-22 490567 2205805 ✓

CB-BIMC09-23 490916 2205651 ✓

CB-BIMC09-24 491213 2205367 ✓

CB-BIMC09-25 491440 2205235 ✓

CB-BIMC09-26 491780 2205011 ✓

CB-BIMC09-27 491085 2206065 ✓

CB-BIMC09-28 491425 2205831 ✓

CB-BIMC09-29 491669 2205557 ✓

CB-BIMCT17-01 490718 2205860 ✓

CB-BIMCT17-02 491695 2205270 ✓

CB-BIMCT17-03 492444 2204986 ✓

CB-BIMCT17-04 492550 2204542 ✓

CB-BIMCT17-05 492991 2204577 ✓

CB-BIMCT17-06 493357 2204008 ✓

CB-BIMCT17-07 493602 2203635 ✓

CB-BIMCT17-08 493714 2203406 ✓

CB-BIMCT17-09 493963 2204056 ✓

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State Plane, FL-East, NAD83 Available for Inspection

Project Location X Y

CB-BIMCT17-10 494468 2204173 ✓ US MCSF-

Blount Island

Channel

CB-BIMCT17-11 494939 2203786 ✓

CB-BIMCT17-12 494499 2203308 ✓

* Coordinates presented correspond to the project coordinate system and datum

Table 2. Available Vibracore Data

Designation

State Plane, FL-East, NAD83

Available for

Inspection Project

Location X Y

VB-BIMC08-1 490886 2205909 ✓

US MCSF-

Blount Island

Channel

VB-BIMC08-2 491990 2205158 ✓

VB-BIMC08-3 493323 2204189 ✓

VB-BIMC08-4 494685 2203378 ✓

* Coordinates presented correspond to the project coordinate system and datum

Table 3. Available Surficial Samples Data

State Plane, FL-East, NAD83 Project Location X Y

GS-BIMC05-1 490681 2206092

US MCSF-

Blount Island

Channel

GS-BIMC05-2 491353 2205714

GS-BIMC05-3 492000 2205440

GS-BIMC05-4 492682 2205153

GS-BIMC05-5 492724 2204800

GS-BIMC05-6 493319 2204675

GS-BIMC05-7 493518 2204139

GS-BIMC05-8 494333 2204267

GS-BIMC05-9 494155 2203692

GS-BIMC05-10 494988 2203738

* Coordinates presented correspond to the project coordinate system and datum

4.2 SUMMARY OF INDEX TESTING DATA

The table below summarizes the index testing available for this project.

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Table 4: Index Testing Available for this Project

Boring

Sample Number USCS LL PL PI Org % Visual

Shell %

CO3

% wn GS Munsell

Color

GS-BIMC05-1 1D MH

GS-BIMC05-2 2D MH

GS-BIMC05-3 3D MH

GS-BIMC05-4 4D 0H

GS-BIMC05-5 5D MH

GS-BIMC05-6 6D MH

GS-BIMC05-7 7D SM

GS-BIMC05-8 8D 0H

GS-BIMC05-9 9D SP-SM

GS-BIMC05-10 10D SP-SM

CB-BIMC08-1

1 OH 228 60 168 15 271.2 10Y 3/1

2 SP-SM 2.63 2.5Y 6/3

4 SM 2.5Y 5/3

6 MH 2.5Y 5/6

CB-BIMC08-2

1 OH 228 65 163 2.62 N 3/

4 SM 10YR 7/4

CB-BIMC08-3

1 OH 202 59 143 N 3/

3 SP-SM 4 5 10YR 6/2

CB-BIMC08-6

2 SM 0 0 NP 5Y 4/1

3 SM 5Y 4/1

5 SP-SM 5Y 4/2

CB-BIMC08-7 3 SM 5Y 4/2

CB-BIMC08-8

1 OH 3 0 N 3/

4 SP-SM 2.64 5Y 4/2

CB-BIMC08-9 1 OH 152 55 97 10 197.8 2.59 N 3/

CB-BIMC08-10

1 SM 5Y 4/1

2 SM 5Y 3/1

4 CH 77 26 51 10Y 6/1

CB-BIMC08-11

1 OH 135 49 86 159.9 N 3/

3 CL 45 21 24 2.78 5GY 6/1

CB-BIMC08-12 1 SP-SM 30 23 7 10Y 3/1

CB-BIMC08-13

1 SC 29 22 7 5Y 4/3

3 SM 2.69 2.5Y6/4

6 SC 2.5Y 7/3

CB-BIMC09-22

4 SM 10YR 4/6

5 SM 10YR 5/6

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Sample Number USCS LL PL PI Org % Visual

Shell %

CO3

% wn GS Munsell

Color

6 SM 10YR 5/4

CB-BIMC09-23

4 SP-SM 10YR 5/2

5 SM 10YR 5/3

6 SP-SM 10YR 6/2

CB-BIMC09-24

1 SM 1.8 5Y 4/2

3 SP-SM 5Y 4/3

4 SP-SM 5Y 4/3

CB-BIMC09-25

2 SM 5Y 4/3

3 SP-SM 5Y 4/3

4 SP-SM 5Y 4/3

CB-BIMC09-26

1 CH 211 63 148 13.9 5Y 3/1

2 SP-SM 5Y 4/2

3 SP-SM 5Y 4/3

5 SP-SM 5Y 4/2

CB-BIMC09-27

2 SM 5Y 5/1

3 SC 72 26 46 5Y 4/2

5 SP 5Y 7/1

7 CH 207 46 161 5Y 4/4

CB-BIMC09-28

1 CH 244 72 172 17 5Y 3/1

3 SP 5Y 7/2

4 SP 0 0 NP 5Y 6/2

CB-BIMCT17-01

1 CL 5Y 3/2

3 SP-SM 5Y 5/2

4 SM 2.5Y 6/4

CB-BIMCT17-02 1 CL 5Y 3/2

2 SP-SM 5Y 4/2

CB-BIMCT17-03 4 CL 5Y 3/2

CB-BIMCT17-04 2 CL 5Y 4/2

4 SP 5Y 5/2

CB-BIMCT17-06 2 SM 2.5Y 3/3

3 SP-SM 2.5Y 4/3

CB-BIMCT17-07

2 SP-SM 2.5Y 6/2

8 SP-SM 2.5Y 4/2

10 CL 5Y 3/2

13 CH 5Y 3/1

CB-BIMCT17-08

4 SC 5Y 3/2

10 SP-SM 5Y 4/2

13 SC 5Y 3/1

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Sample Number USCS LL PL PI Org % Visual

Shell %

CO3

% wn GS Munsell

Color

CB-BIMCT17-09

1 SC 2.5Y 4/2

2 CH 5Y 4/3

4 SM 2.5Y 7/4

CB-BIMCT17-10 2 CL 5Y 3/2

5 SP 2.5Y 5/3

CB-BIMCT17-11 4 SP 2.5Y 4/2

CB-BIMCT17-12 2 SC 2.5Y 7/3

USCS: Unified Soil Classification System; LL: liquid limit; PL: plastic limit; PI: Plastic Index; Org %: Organic Content;

CO3%: Carbonate Content; wn: moisture content; Gs: specific gravity

4.3 SUMMARY OF ADDITIONAL LABORATORY TESTING DATA

Sedimentation rate curves were obtained for the subset including samples from GS-BIMC05-1D through GS-BIMC05-10D, VB-BIMC08-1, and VB-BIMC08-2. Test data sheets are included in paragraph 4.7.

Table 5. Available Sedimentation Rate Data

Boring Number Sample

Depth (feet) USCS Sedimentation Rate

Final Concentration (g/L) GS-BIMC05 1D Surficial MH 645 GS-BIMC05 2D Surficial MH 606 GS-BIMC05 3D Surficial MH 556 GS-BIMC05 4D Surficial 0H 870 GS-BIMC05 5D Surficial MH 435 GS-BIMC05 6D Surficial MH 588 GS-BIMC05 7D Surficial SM 800 GS-BIMC05 8D Surficial 0H 667 GS-BIMC05 9D Surficial SP-SM 1053 GS-BIMC05 10D Surficial SP-SM 1111

VB-BIMC08-1 1 2.0-2.5 CH 543.48

VB-BIMC08-2 1 2.5-3.0 CH 854.70

4.4 BORING LOG NOTES

Borings CB-BIMC08-1 through CB-BIMC08-3, CB-BIMC08-6 through CB-BIMC08-14, CB- BIMC09-22 through CB-BIMC09-28, and CB-BIMCT17-1 through CB-BIMCT17-12 were driven using the Standard Penetration Test (SPT) procedure with a 140 pound hammer with a 30-inch drop using a 2.0 foot split spoon (1 3/8-inch I.D. and 2-inch O.D.). Borings were advanced in 18-inch intervals, or until refusal was encountered. Refusal is defined as a total of 50 blows of the hammer within any 6- inch increment, a total of 100 blows within any 1-foot increment, or no observed advance of the sampler after 10 successive blows of the hammer. When refusal was encountered, the borings were continued with a 4-inch by 5 1/2-inch diameter core barrel until the rate of penetration indicated softer material, at which point the SPT procedure was resumed.

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Borings CB-BIMC08-4 and CB-BIMC08-5, located on the concrete sill, were also advanced with a 4-inch by 5 1/2-inch diameter core barrel.

Vibracore borings VB-BIMC08-1 through VB-BIMC08-4 were sampled using an Alpine style, pneumatic vertical hammer, vibracore drilling apparatus having a continuous 20-foot by 3 or 3 1/2-inch core barrel with clear plastic core liner until refusal was encountered. Refusal is defined as no additional penetration of the vibracore with two minutes of additional effort applied to penetrate through the resistant layer at maximum vibration.

Sediment surface samples GS-BIMC05-1 through GS-BIMC05-10 were collected with a clam shell sampler.

4.5 INSPECTION OF RECOVERED MATERIALS

The material recovered from borings marked with a checkmark in Table 1 and Table 2 is available for inspection by prospective offerors at the Corps of Engineers District warehouse listed below:

Address: 3077 Talleyrand Avenue Jacksonville, 32206 Florida Hours: 7:00 am to 2:30 pm

The recovered materials will be available for inspection during normal business hours as noted above, except Federal holidays, during the entire bid period. Prospective offerors shall notify the project geologist at 904-232-1054 or Chief, Geology and Explorations Section at 904-232-1617 at least four (4) working days before the visit.

The following information will be required to schedule the visit:

(1) Project title;

(2) Specific borings or entire set which are to be viewed;

(3) Date, time, and duration of the visit;

(4) Name of the person(s) and company to view the borings; and

(5) Point of contact and phone number regarding the visit.

Prospective offerors shall record their material examination visit in a record book maintained at the inspection site.

It is strongly suggested that prospective offerors view the samples before submitting their bid.

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0 1,500 3,000750 Feet

Legend Channel Framework

Channel Boundary Center Line Station Marker

Project Location

Cedar Key

Jacksonville

St. Augustine

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT, CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

1BUN

JLC

JLC

20 Aug 18

Dsn by:

Marine Corps Support Facility Blount Island

O&M Geotechnical Data Report

Geotechnical Drawings

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VB-BIMC08-2

VB-BIMC08-1

CB-BIMC08-8

CB-BIMC08-7

CB-BIMC08-6

CB-BIMC08-5

CB-BIMC08-4

CB-BIMC08-3

CB-BIMC08-2

CB-BIMC08-1

CB-BIMC09-29

CB-BIMC09-28

CB-BIMC09-27

CB-BIMC09-26

CB-BIMC09-25

CB-BIMC09-24

CB-BIMC09-23

CB-BIMC09-22

CB-BIMCT17-02

CB-BIMCT17-01

GS-BIMC05-3

GS-BIMC05-2

GS-BIMC05-1

Legend Geotechnical Samples !H Core Boring - SPT !O Vibracore !? Surficial

Channel Framework Channel Boundary Center Line Station Marker Sill "

0 200 400100 Feet

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT, CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

2BUN

JLC

JLC

20 Aug 18

Dsn by:

Marine Corps Support Facility Blount Island

O&M Geotechnical Data Report

Geotechnical Drawings

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 15

!H

!H !H

!H

!O

!O

!H

!H !H

!H

!H

!H

!H

!H

!H

!H

!?GS-BIMC05-9

GS-BIMC05-8

GS-BIMC05-7

GS-BIMC05-6

GS-BIMC05-5

GS-BIMC05-4

GS-BIMC05-10

VB-BIMC08-4

VB-BIMC08-3

CB-BIMC08-9

CB-BIMC08-14

CB-BIMC08-13

CB-BIMC08-12

CB-BIMC08-11

CB-BIMC08-10

CB-BIMCT17-12

CB-BIMCT17-11

CB-BIMCT17-10

CB-BIMCT17-09

CB-BIMCT17-08

CB-BIMCT17-07

CB-BIMCT17-06

CB-BIMCT17-05

CB-BIMCT17-04

CB-BIMCT17-03

Legend Geotechnical Samples !H Core Boring - SPT !O Vibracore !? Surficial

Channel Framework Channel Boundary Center Line Station Marker "

0 300 600150 Feet

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT, CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

3BUN

JLC

JLC

20 Aug 18

Dsn by:

Marine Corps Support Facility Blount Island

O&M Geotechnical Data Report

Geotechnical Drawings

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 16

4.7 BORING LOGS

Applicable boring logs are presented on the following pages.

The borings presented in this section are available historic borings within the project area. Most of the materials within the project template presented on the boring logs have been removed by previous dredging events with subsequent shoaling of similar materials. The current elevations of the materials at these locations are shown on the contract drawings.

While the Government’s borings are representative of subsurface conditions at their respective locations and vertical reaches, local variations in the characteristics of the subsurface materials of this region are to be expected. Accordingly, prospective offerors shall form their own conclusions from the examination of the recovered materials prior to submission of their offer.

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 17

S t a t e

P l a n e

F L E a s t

N A D

D s i g n a t i o n

X

Y

E l e v a t i

M L L W

D s c r i p t i

G

B I M C i l t i n o r g a n i c l i t t l e c l a y t r a c e f i g r a i n e d q u a r t z s a n d g r a y

M H

B I M C l t i n o r g a n i c l i t t l e c l a y t r a c e f i a i n e d q u a r t z s a n d g r a y

M

B I M C l t i n o r g a n i c l i t t l e c l a y t r a c e f i a i n e d q u a r t z s a n d g r a y

M

B I M C l t o r g a n i c l i t t l e c l a y t r a c e f i n e g r a i n d q u a r t z s a n d g r a y

O

B I M C l t i n o r g a n i c l i t t l e c l a y t r a c e f i a i n e d q u a r t z s a n d g r a y

M

B I M C l t i n o r g a n i c l i t t l e c l a y t r a c e f i a i n e d q u a r t z s a n d g r a y

M

B I M C a n d s i l t y f i n e g r a i n e d q u a r t z s o m e s i l t a y

S

B I M C l t o r g a n i c l i t t l e c l a y t r a c e f i n e g r a i n a r t z s a n d g r a y

O

B I M C n d p o o r l y g r a d e d s o m e s i l t f i n e g r a i n a r t z g r a y

S P S

B I M C n d p o o r l y g r a d e d s o m e s i l t f i n e g r a i n a r t z g r a y

S P S

E l e v a t i o n b a s e d o n p r e d i c t e d t i d s

38-Foot Project

00 31 32 - Page 18

-45.9

-38.1

-40.1

-40.6

-44.1

-44.6

-38.1-38.1

-41.1

-45.6

-45.97.8

0.0

3.0

7.5

0.0

H

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

CLAY, fat, high plasticity, very soft, wet, 5Y 2.5/1 black (CH)

SAND, poorly-graded, mostly fine to coarse-grained sand-sized quartz, trace angular sand to gravel-sized shell up to 3/4", wet, 5Y 7/2 light gray (SP)

LIMESTONE, fossiliferous, moderately hard, highly weathered, very fine grained, solid, 5Y 7/2 light gray

BORING TERMINATED IN REFUSAL

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Vibracore Borings Were Sampled With An Alpine 271 Pneumatic Powered Unit Using A 3 7/8" Clear Lexan Liner To Termination Depth Specified.

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 2.0/2.5 CH*

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-BIMC08-1

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-BIMC08-1

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine Vibracore Unit

Bob Momberger, Geologist

South Atlantic

N/A

2007D16B

Alpine Ocean Seismic, Inc.

MCSF Blount Island Mil Dredge Marine Corps Terminal Channel

06-13-08

-38.1 Ft.

100 %

Tidal

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 490,885 Y = 2,205,909

Challenge Engineering & Testing, Inc.

7.8 Ft.

Jacksonville District

06-13-08

N/A

JUN 02

SAJ FORM 1836

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 19

2 6.0/6.5 SP*

*Lab visual classification based on gradation curve. No Atterberg limits.

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

MCSF Blount Island Mil Dredge NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-38.1 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 490,885 Y = 2,205,909

VB-BIMC08-1

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 20

-46.6

-39.6

-42.1

-42.6

-44.6

-45.1

-39.6-39.6

-43.6

-46.1

-46.67.0

0.0

4.0

6.5

0.0

H W

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

CLAY, fat, high plasticity, very soft, wet, 5Y 2.5/1 black (CH)

SAND, silty, mostly fine-grained sand-sized quartz, little silt, wet, 5Y 5/3 olive (SM)

LIMESTONE, fossiliferous, moderately hard, highly weathered, very fine grained, solid, 5Y 5/3 olive

BORING TERMINATED IN REFUSAL

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Vibracore Borings Were Sampled With An Alpine 271 Pneumatic Powered Unit Using A 3 7/8" Clear Lexan Liner To Termination Depth Specified.

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 2.5/3.0 CH*

2 5.0/5.5 SM*

*Lab visual classification based on gradation

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-BIMC08-2

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-BIMC08-2

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine Vibracore Unit

Bob Momberger, Geologist

South Atlantic

N/A

2007D16B

Alpine Ocean Seismic, Inc.

MCSF Blount Island Mil Dredge Marine Corps Terminal Channel

06-13-08

-39.6 Ft.

100 %

Tidal

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 491,990 Y = 2,205,158

Challenge Engineering & Testing, Inc.

7.0 Ft.

Jacksonville District

06-13-08

N/A

JUN 02

SAJ FORM 1836

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 21 curve. No Atterberg limits.

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

MCSF Blount Island Mil Dredge NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-39.6 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 491,990 Y = 2,205,158

VB-BIMC08-2

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 22

-43.8

-37.2

-39.7

-40.2

-42.7

-43.2

-37.2-37.2

-39.7

-42.2

-43.7

100 -43.86.6

0.0

2.5

5.0

6.5

0.0

M od er at el y

W ea th er ed H

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SAND, silty, mostly fine-grained sand-sized quartz, some silt, trace angular shell up to 3/8", wet, 5Y 4/3 olive (SM)

SANDSTONE, sparsely fossiliferous, very soft, moderately weathered, fine-grained, solid, 5Y 6/4 pale olive

SAND, silty, mostly fine-grained sand-sized quartz, some silt, trace angular shell up to 1/8", wet, weak cementation, 5Y 4/1 dark gray (SM)

LIMESTONE, fossiliferous, moderately hard, highly weathered, very fine grained, solid, 5Y 4/1 dark gray

BORING TERMINATED IN REFUSAL

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Vibracore Borings Were Sampled With An Alpine 271 Pneumatic Powered Unit Using A 3 7/8" Clear Lexan Liner To Termination Depth Specified.

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 2.5/3.0 SM*

2 5.5/6.0 SM*

*Lab visual classification based on gradation

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-BIMC08-3

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-BIMC08-3

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine Vibracore Unit

Bob Momberger, Geologist

South Atlantic

N/A

2007D16B

Alpine Ocean Seismic, Inc.

MCSF Blount Island Mil Dredge Marine Corps Terminal Channel

06-13-08

-37.2 Ft.

100 %

Tidal

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 493,323 Y = 2,204,189

Challenge Engineering & Testing, Inc.

6.6 Ft.

Jacksonville District

06-13-08

N/A

JUN 02

SAJ FORM 1836

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 23 curve. No Atterberg limits.

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

MCSF Blount Island Mil Dredge NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-37.2 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 493,323 Y = 2,204,189

VB-BIMC08-3

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 24

-46.3

-37.8 -38.0 -38.5

-41.8

-42.3

-37.8-37.8 -38.1

-46.38.5

0.0 0.3 0.0

M od er at el y

W ea th er ed

Vibracore Vibracore

Vibracore

Vibracore

Vibracore

SAND, silty, mostly fine-grained sand-sized quartz, some silt, wet, 2.5Y 4/3 olive brown

(SM)

LIMESTONE, fossiliferous, very soft, moderately weathered, aphanitic, pitted, clay filled pits, 2.5Y 8/2 pale yellow

BORING TERMINATED IN REFUSAL

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Vibracore Borings Were Sampled With An Alpine 271 Pneumatic Powered Unit Using A 3 7/8" Clear Lexan Liner To Termination Depth Specified.

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-BIMC08-4

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-BIMC08-4

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine Vibracore Unit

Bob Momberger, Geologist

South Atlantic

N/A

2007D16B

Alpine Ocean Seismic, Inc.

MCSF Blount Island Mil Dredge Marine Corps Terminal Channel

06-13-08

-37.8 Ft.

100 %

Tidal

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 494,685 Y = 2,203,378

Challenge Engineering & Testing, Inc.

8.5 Ft.

Jacksonville District

06-13-08

N/A

JUN 02

SAJ FORM 1836

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 25

1 0.2/0.7 SM*

2 4.0/4.5 SM*

*Lab visual classification based on gradation curve. No Atterberg limits.

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

MCSF Blount Island Mil Dredge NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-37.8 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 494,685 Y = 2,203,378

VB-BIMC08-4

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 26

RQD

-35.8

-43.9

-46.0

-47.5

-48.0

-50.3

Free Fall of Sampler

SPT Sampler

SPT Sampler

SPT Sampler

4 x 5-1/2" Diamond Impregnated Bit DT = 13 mins HP = 300 psi

DFR = 95 %

SPT Sampler

BOX

NR

CLAY, fat, high plasticity, very soft, few fine-grained sand-sized quartz, wet, N 2.5/ black (CH)

SAND, silty, mostly fine to medium-grained sand-sized quartz, some silt, 5Y 6/2 light olive gray (SM)

At El. -45.8 Ft., trace medium-grained sand-sized shell

SAND, poorly-graded with silt, mostly fine to coarse-grained sand-sized quartz, few silt, 2.5Y 7/2 light gray (SP-SM)

SANDSTONE, non-fossiliferous, moderately hard, unweathered, fine grained, intact, solid, 2.5Y 6/2 light brownish gray

SANDSTONE, hard, 2.5Y 6/1 gray

At El. -50.0 Ft., broken due to drill action SAND, clayey, 10YR 6/1 gray (SC)

-35.8-35.8

-43.9

-47.0

-48.0

-49.5

-50.3

0.0

8.1

11.2

12.2

13.7

14.5

0.0

U nw ea th er e d

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

CB-BIMC08-1

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

CB-BIMC08-1

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 490,515 Y = 2,205,814

MLLW

CME-55 (barge-mounted)

N/A

N/A

Corps of Engineers - CESAM

19.0 Ft.

Jacksonville District

10-13-08

South Atlantic

N/A

Charlie Brown

US Marine Corps Support Facility - Blount Island

Deepening & Sill Removal

10-13-08

-35.8 Ft.

45 %

Marianne Gruber, Geologist

SAJ FORM 1836

JUN 02

(Continued)

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 27

-51.8

-53.3

-54.8

SPT Sampler

SPT Sampler

SPT Sampler

NR

NR

NR

At El. -51.3 Ft., layer of clay

At El. -51.7 Ft., 10YR 8/1 white SANDSTONE, silicious, sparsely fossiliferous, moderately hard, fine grained, broken due to drill action, 10YR 7/2 light gray

At El. -53.3 Ft., highly weathered

SILTSTONE, very fine grained, thin bedding, flat bedding orientation, 2.5Y 7/1 light gray

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.0/19.0 OH

2 8.1/19.0 SP-SM*

4 11.2/19.0 SM*

6 14.5/19.0 MH*

*Lab visual classification based on gradation curve

SAMPLE LABORATORY

DEPTH SOIL TESTING RESULT UNIT

0.0 Atterberg (PI) 168

0.0 Water Content 271 %

0.0 Unit Weight / pcf

140# hammer w/30" drop used with 2.0' split spoon (1-3/8" I.D. x 2" O.D.).

Abbreviations:

-51.8

-54.4

-54.8 19.0

16.0

18.6

H ig hl y

W ea th

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

US Marine Corps Support Facility - Blount Island

-35.8 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 490,515 Y = 2,205,814

CB-BIMC08-1

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 28

-35.0

-43.4

-45.4

-46.9

-48.4

-49.9

Free Fall of Sampler

Overwashed

SPT Sampler

SPT Sampler

SPT Sampler

NR

CLAY, fat, high plasticity, very soft, trace fine-grained sand-sized quartz, wet, N 2.5/ black (CH)

SAND, poorly-graded with silt, mostly fine to coarse-grained sand-sized quartz, trace clay, 2.5Y 6/1 gray (SP-SM)

SAND, silty, mostly fine to medium-grained sand-sized quartz, 5Y 6/3 pale olive (SM) From El. -47.2 to -47.3 Ft., layer of sandstone, 5Y 7/2 light gray SILTSTONE, highly weathered, broken due to drill action, 5Y 6/2 light olive gray SAND, poorly-graded with silt, mostly fine to coarse-grained sand-sized quartz, 5Y 8/1 white (SP-SM)

From El. -49.6 to -49.7 Ft., layer of

-35.0-35.0

-45.4

-46.6

-47.5

-48.4

-49.9

0.0

10.4

11.6

12.5

13.4

14.9

0.0

H W

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

CB-BIMC08-2

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

CB-BIMC08-2

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 490,630 Y = 2,206,137

MLLW

CME-55 (barge-mounted)

N/A

N/A

Corps of Engineers - CESAM

20.5 Ft.

Jacksonville District

10-14-08

South Atlantic

N/A

Charlie Brown

US Marine Corps Support Facility - Blount Island

Deepening & Sill Removal

10-14-08

-35.0 Ft.

48 %

Mariane Gruber, Geologist

SAJ FORM 1836

JUN 02

(Continued)

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 29

RQD

-51.4

-55.5

SPT Sampler

4 x 5-1/2" Diamond Impregnated Bit DT = 8 mins HP = 300 psi

DFR = 0 %

BOX

sandstone SANDSTONE, silicious, highly weathered, 5Y 7/1 light gray

At El. -51.4 Ft., coarse grained, 5Y 7/2 light gray

SAND, clayey, some fine to coarse gravel-sized sandstone, 5Y 5/1 gray (SC) SANDSTONE, silicious, sparsely fossiliferous, hard, moderately weathered, fine grained, porous, 2.5Y 8/1 white

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.0/20.5 OH

4 13.4/20.5 SM*

*Lab visual classification based on gradation curve

SAMPLE LABORATORY

DEPTH SOIL TESTING RESULT UNIT

0.0 Atterberg (PI) 163

140# hammer w/30" drop used with 2.0' split spoon (1-3/8" I.D. x 2" O.D.).

Abbreviations:

-52.4

-52.9

-55.5 20.5

17.4

17.9

H ig hl y

W ea th er ed M od er at el y W ea th er ed

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

US Marine Corps Support Facility - Blount Island

-35.0 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 490,630 Y = 2,206,137

CB-BIMC08-2

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 30

RQD

-38.8

-43.5

-45.5

-47.0

-48.5

-50.0

-51.5

-52.0

Free Fall of Sampler

Free Fall of Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

SPT Sampler

4 x 5-1/2" Diamond Impregnated Bit DT = 5 mins HP = 125 psi

DFR = 50 %

BOX

CLAY, fat, high plasticity, very soft, wet, N 2.5/ black (CH)

SAND, poorly-graded, mostly medium-grained sand-sized quartz, few angular fine gravel-sized shell, dry, 5Y 6/1 gray (SP) From El. -46.6 to -46.7 Ft., strong cementation

At El. -51.1 Ft., 5Y 3/1 very dark gray At El. -51.4 Ft., layer of sandstone CLAY, lean, low plasticity, firm, dry, 5Y 5/1 gray (CL) SANDSTONE, silicious, fossiliferous, moderately hard, slightly weathered, fine grained, intact, vuggy, 2.5Y 6/3 light yellowish brown

-38.8-38.8

-45.9

-51.7

-52.2

0.0

7.1

12.9

13.4

0.0

S l.

W ea th er ed

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

CB-BIMC08-3

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

CB-BIMC08-3

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 491,101 Y = 2,205,619

MLLW

CME-55 (barge-mounted)

N/A

N/A

Corps of Engineers - CESAM

16.2 Ft.

Jacksonville District

10-21-08

South Atlantic

N/A

Ricky Brown

US Marine Corps Support Facility - Blount Island

Deepening & Sill Removal

10-21-08

-38.8 Ft.

60 %

Jase Ousley, Geologist

SAJ FORM 1836

JUN 02

(Continued)

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 31

-55.0

4 x 5-1/2" Diamond Impregnated Bit DT = 5 mins HP = 125 psi

DFR = 50 %

BOX

NOTES:

1. USACE Jacksonville is the custodian for these original files.

2. Soils are field visually classified in accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.0/16.2 OH

3 8.2/16.2 SP-SM*

*Lab visual classification based on gradation curve

SAMPLE LABORATORY

DEPTH SOIL TESTING RESULT UNIT

0.0 Atterberg (PI) 143

140# hammer w/30" drop used with 2.0' split spoon (1-3/8" I.D. x 2" O.D.).

Abbreviations:

-55.0 16.2

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

US Marine Corps Support Facility - Blount Island

-38.8 Ft.

State Plane, FLE (U.S. Ft.)

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 491,101 Y = 2,205,619

CB-BIMC08-3

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

.5

F T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

U.S. Marine Corps Support Facility Blount Island Maintenance Dredging 38-Foot Project

00 31 32 - Page 32

-37.5

-40.1

-44.8

-49.7

4 x 5-1/2" Diamond Impregnated Bit DT = 14 mins HP = 250 psi

DFR = 10 %

4 x 5-1/2" Diamond Impregnated Bit DT = 25 mins HP = 250 psi

DFR = 70 %

4 x 5-1/2" Diamond Impregnated Bit DT = 33 mins HP = 250 psi

DFR = 75 %

4 x 5-1/2" Diamond Impregnated Bit DT = 17 mins HP = 200 psi

DFR = 75 %

BOX

BOX

CONCRETE

At El. -45.1 Ft., pour lift

-37.5-37.5

-52.3

0.0

14.8

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

CB-BIMC08-4

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

CB-BIMC08-4

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

State Plane, FLE (U.S. Ft.)

X = 491,180 Y = 2,205,690

MLLW

CME-55 (barge-mounted)