B.08 W912EP24B0008_GDR_FY24_final.pdf

SECTION 00 31 32

Geotechnical Data Report for

Marine Corps Support Facility – Blount Island Maintenance Dredging Duval County, Florida

Prepared by

Geosystems Branch

Engineering Division

Jacksonville District Corps of Engineers

December 2023

Marine Corps Support Facility – Blount Island Maintenance Dredging 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

2.2.1 Channel

2.2.2 Berths 3 and 4

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 Plate 4. 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 the Geosystems Branch.

2 CHARACTER OF MATERIALS

2.1 THE LOCAL GEOLOGY

The local geology of the project area is characterized by Pleistocene and Holocene age, marine terrace and beach ridge sediments, which were deposited on an irregular and undulating surface.

The thickness of these deposits can be up to 10 feet in the St. Johns River valley. The deposits are thickest below the ridges and in places where they overlie depressions. The deposits consist primarily of tan to yellow, medium to fine grained quartz sands, which are locally stained rusty brown or red due to iron oxide. Locally thin gray sandy clay beds, which contain occasional mollusk shells, are present, particularly near the coast.

Beneath these sediments, the Pliocene age Cypresshead Formation is encountered which typically consists of tan or light gray quartz sand, shell, and clayey sand/sandy clay. The Miocene age Charlton Member of the Coosawhatchie Formation underlies the Pliocene age sands in the project area. Contained within the Hawthorn Group, the Charlton Member includes limestone, dolostone, clay, and phosphates. The thickness of the Miocene age Charlton Member and the Pliocene age deposits ranges from as little as 25 feet to more than 130 feet in the project area.

The Miocene age Hawthorn Group consists mainly of dark gray and olive green sandy to silty clay, clayey sand, clay, sandy limestone, and dolostone., The lithology of the unit is distinguished by the presence of significant percentages of black phosphate sand, granules, and pebbles. The Hawthorn Group ranges in thickness from about 250 feet to as much as 500 feet in the project area

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.

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The borings and surficial samples included in this GDR were collected in 2005, 2008, 2009, 2017, 2020, and 2022.

2.2.1 Channel

The material in the channel consists of shoaled material deposited since the last dredging event in 2020, and includes primarily silt and clay, trace shell, and few to little very fine to medium grained quartz sand in various thicknesses. The materials within the dredge template presented on the boring logs and sediment gradation curves before 2023 have been removed during previous dredging events, with subsequent shoaling of similar material. Over-dredging has occurred during previous dredging events. 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.

Prior dredging contracts encountered loose rock and debris in the allowable overdepth throughout the channel. The loose rock consisted of moderately hard, weathered limestone and sandstone, ranging from gravel to boulder-sized stones. Debris and rubble in excess of 6 inches, including concrete and concrete with rebar, have also been encountered.

Given the demolition and removal work conducted on the sill in 2020, the Contractor should anticipate encountering loose rocks, concrete, concrete with rebar, and other associated debris, including large, boulder-sized material in excess of 6 inches, while dredging the allowable overdepth from station 5+75 to station 8+57.6. In-situ rock, if encountered, is not required to be dredged.

The remnants of a concrete sill are located within the project area at an elevation of -47 feet MLLW, which is below the required project depth and allowable overdepth project limit. The sill was partially removed to a depth of -47 feet MLLW during a recent construction contract that was completed in 2020. It should be noted that borings CB-BIMC08-4 and CB-BIMC08-5 were collected in 2008 before the concrete sill was removed and are not indicative of the present subsurface conditions above -47 feet MLLW; the borings are indicative of subsurface conditions below -47 feet MLLW.

2.2.2 Berths 3 and 4

The materials encountered in Berths 3 and 4 are not native materials (in situ) and primarily consist of silt, clay, shell, and fine to medium grained quartz sand; rocks and concrete debris (ranging from gravel to boulder size) are not shown on the logs but are visible within the dredge template at low tide and should be anticipated to be encountered throughout the dredge template.

The Contractor should anticipate encountering loose rocks, concrete, concrete with rebar, and other unacceptable material or associated debris and trash, including large, boulder-sized material in excess of 6 inches.

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, Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 4 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.

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).

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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.

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

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Test/Procedure Method

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

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

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Test/Procedure Method

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

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-BIMC08-5R 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 ✓

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Sample Designation

State Plane, FL-East, NAD83 Available for

Inspection

Project Location

X Y

CB-BIMC09-27 491085 2206065 ✓

US MCSF-

Blount Island

Channel

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 ✓

CB-BIMCT17-10 494468 2204173 ✓

CB-BIMCT17-11 494939 2203786 ✓

CB-BIMCT17-12 494499 2203308 ✓

CB-BIMCT22-1 490529 2205912 ✓

CB-BIMCT22-2 490791 2206074 ✓

CB-BIMCT22-3 490742 2205674 ✓

CB-BIMCT22-4 491162 2205927 ✓

CB-BIMCT22-5 491397 2205562 ✓

CB-BIMCT22-6 491664 2205197 ✓

CB-BIMCT22-7 492076 2205086 ✓

CB-BIMCT22-8 492481 2204721 ✓

CB-BIMCT22-9 492481 2204612 ✓

CB-BIMCT22-10 492950 2204464 ✓

CB-BIMCT22-11 493284 2204390 ✓

CB-BIMCT22-12 493392 2204026 ✓

CB-BIMCT22-13 493953 2203987 ✓

CB-BIMCT22-14 494235 2203549 ✓

CB-BIMCT22-15 494521 2203257 ✓

CB-BIMCT22-16 494887 2203291 ✓

CB-BIMCT-20-1 491505 2205117 ✓

Berth 3 CB-BIMCT-20-2 491593 2205061 ✓

CB-BIMCT-20-3 491702 2204990 ✓

CB-BIMCT-20-4 491792 2205546 ✓

Berth 4 CB-BIMCT-20-5 491986 2205453 ✓

CB-BIMCT-20-6 492153 2205379 ✓

* Coordinates presented correspond to the project coordinate system and datum

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Table 2. Available Vibracore Data

Sample 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

Sample Designation

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

US MCSF-Blount Island Channel

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.

Table 4: Index Testing Available for this Project

Boring Designation

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

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Boring

Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

wn GS Munsell Color

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

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

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Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

wn GS Munsell Color

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

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

CB-BIMCT20-01

1 MH 154 60 94 10.9 152 5Y 3/2

3 GP 2.5Y 4/2

4 SP-SM 2.5Y 5/2

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Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

wn GS Munsell Color

CB-BIMCT20-02

3 SP-SM 2.5Y 4/1

7 SP 2.5Y 4/1

11 SP 2.5Y 4/1

14 SP-SM 5Y 6/2

CB-BIMCT20-03

3 SP-SM 5Y 4/1

4 SP-SM 5Y 4/1

CB-BIMCT20-04 1&2 Limestone 146 52 94 11.5 83.3 5Y 2.5/1

CB-BIMCT20-05

4 SP 5Y 5/1

12 SP 2.5Y 5/2

15 SP 2.5Y 4/1

CB-BIMCT20-

1 SP-SM 2.5Y 3/1

4&6 SP 5Y 4/1

11&12 SP-SM 2.5Y 4/1

CB-BIMCT22-1

S3 CL 15.8 2.5Y 3/1

S4 SM 2.65 2.5Y 5/1

S10 CL 38 21 17 2.5Y 6/2

CB-BIMCT22-2

S3 ML 12.3 2.5Y 3/1

S4 SP-SM 2.66 10YR 6/2

S7 LIMESTONE 2.67 10YR 7/3

S8 SC 42 21 21 2.5Y 6/2

CB-BIMCT22-3

S2 SP-SM 10YR 5/2

S3 SP-SM 5 10YR 5/2

CB-BIMCT22-4

S3 CL 15.9 2.5Y 3/1

S6 SP-SM 5 10YR 6/2

S9 SM 2.65 2.5Y 5/4

S11 CL 2.5Y 5/2

CB-BIMCT22-5 S4 SC 0 2.5Y 6/2

CB-BIMCT22-6

S1 ML 13.2 2.5Y 3/1

S3 SP-SM 0 2.5Y 3/2

S5 SP-SC 0 2.5Y 3/2

CB-BIMCT22-7 S4 SM 2.5Y 3/2

CB-BIMCT22-8

S2 ML 12 2.5Y 3/1

S5 SP-SM 2.5Y 4/2

S6 SC 2.5Y 5/2

S12 CL 47 16 31 2.5Y 3/2

CB-BIMCT22-9

S3 SC 2.5Y 3/2

S6 SP-SM 2.5Y 4/2

CB-BIMCT22-10 S5 ML 49 28 21 2.65 5GY 5/1

CB-BIMCT22-11

S4 CH 2.71 5GY 5/1

S8 LIMESTONE 5GY 5/1

CB-BIMCT22-12 S7 CH 55 33 22 2.67 5GY 5/1

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 13

Sample Number

USCS LL PL PI

Org

Visual Shell

CO3

wn GS Munsell Color

CB-BIMCT22-13

S2 SM 8.7 2.5Y 3/1

S3 CH 2.67 5GY 5/1

S7 SM 10 10YR 7/2

CB-BIMCT22-14

S1 SC 5 2.5Y 5/2

S2 CL 32 22 10 10YR 8/2

S12 SP 2.57 10YR 7/2

CB-BIMCT22-15

S2 SC 10YR 8/4

S4 SC 0 10YR 7/2

S8 SP-SM 2.62 10YR 7/2

CB-BIMCT22-16

S2 SC 27 21 6 10YR 7/2

S4 SC 10 10YR 7/2

S9 SM 2.61 2.5Y 5/2

S14 SM 0 2.62 2.5Y 7/2

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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 14

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, CB-BIMCT17-1 through CB-BIMCT17-12, CB-BIMCT-20-1 through CB-BIMCT-20-6, and CB-BIMCT22-1 to CB-BIMCT22-16 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.

Borings CB-BIMC08-4 and CB-BIMC08-5R, located on the concrete sill, were 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.

00 31 32 - Page 15

X=490,739.7517

X=490,577.0814

X=490,424.0610

X=491,492.4726

X=491,646.9184

X=491,176.7818 X=491,418.0771

RGE. 292.5

RGE. 500

RGE. 707.5

RGE. 795.0

RGE. 500

RGE. 222.5

55+

36+

35+

34+

37+

40+

39+

38+

29+

28+

27+

30+

33+

32+

31+

50+

49+

48+

51+

54+

53+

52+

43+

42+

41+

44+

47+

46+

45+

8+0

7+0

6+0

9+0

12+

11+

10+

1+0

2+0

5+0

4+0

3+0

22+

21+

20+

23+

26+

25+

24+

15+

14+

13+

16+

19+

18+

17+

X=495,370.75

X=495,256.33

X=494,786.29

56+

X=495,141.91

PLATE NO.

Marine Corps Support Facility Blount Island

Maintenance Dredging Duval County, Florida

GEOTECHNICAL

DRAWINGS

NOT FOR

CONSTRUCTION

Vicinity Map

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

Dwn by:

Ckd by:

Dated:

CEPJLC

JLC 7 Dec 2023

Dsn by:

Legend Channel Framework

Station Marker Channel Centerline Channel Limits Berth 3 and Berth 4

0 1,000 2,000500 Feet

Plate 2

Plate 3

Plate 4

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 16

X=490,577.0814

X=491,492.4726

X=491,646.9184

X=491,176.7818 X=491,418.0771

RGE. 795.0

RGE. 500

RGE. 222.5

8+0

7+0

6+0

9+0

12+

11+

10+

1+0

2+0

5+0

4+0

3+0

20+

15+

14+

13+

16+

19+

18+

17+

!H

!H

!H

!H

!H

!H !H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!H

!O

!O

!H

!H

!H

!H

!H

!H

!H

GS-BIMC05-3

GS-BIMC05-2

GS-BIMC05-1

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-BIMCT22-7

CB-BIMCT22-6

CB-BIMCT22-5R

CB-BIMCT22-4

CB-BIMCT22-3

CB-BIMCT22-2

CB-BIMCT22-1

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-BIMCT-20-6

CB-BIMCT-20-5

CB-BIMCT-20-4

CB-BIMCT-20-3

CB-BIMCT-20-2

CB-BIMCT-20-1

CB-BIMCT17-02

CB-BIMCT17-01

PLATE NO.

Marine Corps Support Facility Blount Island

Maintenance Dredging Duval County, Florida

GEOTECHNICAL

DRAWINGS

NOT FOR

CONSTRUCTION

Boring Location Map

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

Dwn by:

Ckd by:

Dated:

CEPJLC

JLC 7 Dec 2023

Dsn by:

Legend Channel Framework

Station Marker Channel Centerline Channel Limits Berth 3 and Berth 4

Sample Locations !H Core Boring (SPT) !? Surficial !O Vibracore ¯

0 200 400100 Feet

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 17

36+

35+

34+

37+

40+

39+

38+

29+

28+

27+

30+

33+

32+

31+

42+

41+

22+

21+

20+

23+

26+

25+

24+

!H

!H !H

!H

!H

!H

!H !H

!H

!H

!H

!H

!O

!H

!H

!H

!H

!H !H

GS-BIMC05-6

GS-BIMC05-5

GS-BIMC05-4

VB-BIMC08-3

CB-BIMC08-9

CB-BIMCT22-9

CB-BIMCT22-8

CB-BIMC08-14

CB-BIMC08-12

CB-BIMC08-11

CB-BIMC08-10

CB-BIMCT22-13

CB-BIMCT22-12

CB-BIMCT22-11CB-BIMCT22-10

CB-BIMCT17-09

CB-BIMCT17-08

CB-BIMCT17-07

CB-BIMCT17-06

CB-BIMCT17-05

CB-BIMCT17-04

CB-BIMCT17-03

GS-BIMC05-7

PLATE NO.

Marine Corps Support Facility Blount Island

Maintenance Dredging Duval County, Florida

GEOTECHNICAL

DRAWINGS

NOT FOR

CONSTRUCTION

Boring Location Map

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

Dwn by:

Ckd by:

Dated:

CEPJLC

JLC 7 Dec 2023

Dsn by:

Legend Channel Framework

Station Marker Channel Centerline Channel Limits

Sample Locations !H Core Boring (SPT) !? Surficial !O Vibracore ¯

0 200 400100 Feet

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 18

RGE. 292.5

RGE. 500

RGE. 707.5

55+

50+

49+

48+

51+

54+

53+

52+

43+

42+

41+

44+

47+

46+

45+

X=495,370.75

X=495,256.33

X=494,786.29

56+

!H

!H

!H

!H

!H

!O

!H

!H

!H !H

GS-BIMC05-9

GS-BIMC05-8

VB-BIMC08-4

GS-BIMC05-10

CB-BIMC08-13

CB-BIMCT22-16

CB-BIMCT22-15

CB-BIMCT22-14

CB-BIMCT17-12

CB-BIMCT17-11

CB-BIMCT17-10

PLATE NO.

Marine Corps Support Facility Blount Island

Maintenance Dredging Duval County, Florida

GEOTECHNICAL

DRAWINGS

NOT FOR

CONSTRUCTION

Boring Location Map

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT

CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

Dwn by:

Ckd by:

Dated:

CEPJLC

JLC 7 Dec 2023

Dsn by:

Legend Channel Framework

Station Marker Channel Centerline Channel Limits

Sample Locations !H Core Boring (SPT) !? Surficial !O Vibracore ¯

0 200 400100 Feet

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 19

4.6 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. 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.

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 20

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

00 31 32 - Page 21

-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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 22

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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 23

-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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 24 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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 25

-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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 26 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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 27

-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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 28

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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 29

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)

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 30

-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

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 31

-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)

Marine Corps Support Facility – Blount Island Maintenance Dredging

00 31 32 - Page 32

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,…