B.08 GDR, KBEC FY23 (W912EP22B0010).pdf

SECTION 00 31 32

Geotechnical Data Report for

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, Camden County, Georgia and Nassau County, Florida

Prepared by

Geosystems Branch

Engineering Division

Jacksonville District Corps of Engineers

March 2022

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, Camden County, Georgia and Nassau County, Florida

00 31 32 - 1

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Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 2

SECTION 00 31 32

GEOTECHNICAL DATA REPORT

Table of Contents

1 SCOPE

2 CHARACTER OF MATERIALS

2.1 Local Geology

2.2 Materials Encountered

2.2.1 Entrance Channel, Cut 1-N, Station 00+00 to Station 100+00

2.2.2 North Turning Basin, Entrance Channel, Cut 1-N

2.2.3 South Turning Basin, Entrance Channel, Cut 1-N

2.2.4 Entrance Channel, Cut 1-N, Station 100+00 to Station 200+00

2.2.5 North Settling Basin, Entrance Channel, Cut 1-N

2.2.6 South Settling Basin, Entrance Channel, Cut 1-N

2.2.7 Entrance Channel, Cut 1-N, Station 200+00 to Station 500+00

2.2.8 Range A, Station 0+000 to Station 8+000, Range A1, Station 8+000 to Station

10+000, and Range A2, Station 10+000 to Station 12+000, Inner Entrance Channel

2.2.9 Range B, Station 12+000 to Station 15+350, Inner Entrance Channel

2.2.10 Range C, Station 15+350 to Station 22+500, and Range D, Station 22+500 to

Station 30+750, Inner Entrance Channel

2.2.11 Range E, Station 30+750 to Station 31+800, Inner Entrance Channel

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 Vibracore Data Table 2. Available Surficial Samples Data Table 3: Index Testing Available for this Project Table 4. 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 Plate 5. Location of Field Investigations

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 3

Plate 6. Location of Field Investigations Plate 7. Location of Field Investigations Plate 8. Location of Field Investigations Plate 9. Location of Field Investigations

SECTION 00 31 32

GEOTECHNICAL DATA REPORT

1 SCOPE

The information provided in this section encompasses the geotechnical field investigations available for this project. The investigations consist of vibracore borings, and surficial samples.

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 Geosystems Branch.

2 CHARACTER OF MATERIALS

2.1 LOCAL GEOLOGY

The Kings Bay Entrance Channel (St. Mary's Inlet/Fernandina Harbor) separates Cumberland Island to the north from Amelia Island to the south and is part of southeast Georgia and northeast Florida coastal plain. Surficial sediments composed of sands, shell, soft silts and clays are Holocene (present to 12k years Before Present (BP)) and Pleistocene (12k to 1.8 million years ago (Mya)) in age. These surficial sediments represent barrier island and marsh/lagoon facies of numerous shoreline complexes. Sparse Pliocene (1.8 Mya to 5.3 Mya) siliciclastics underlie these Pleistocene sediments. Extensive deposits of the Miocene (5.3 Mya to 23.8 Mya) aged Hawthorn Group lie just under most surficial sediments in the Kings Bay Entrance Channel. The composition of the Hawthorn Group is highly variable, reflecting different depositional environments and repeated reworking of the sediment in response to sea level fluctuations on the shallow water shelf. The lithologies of the Hawthorn Group include limestone, dolomite, clay, and quartz sands with a notable quantity of phosphorite.

2.2 MATERIALS ENCOUNTERED

The Kings Bay Entrance Channel has been dredged to the maximum authorized depth with allowable over-depth multiple times over the life of the project. The most recent dredging of the Kings Bay Entrance Channel was last completed in 2022. Therefore, all shoaled materials are newly deposited in the channel through normal coastal processes occurring in and around inlets.

As such, all vibracores collected prior to the last dredging event are representative of the shoaled material.

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 4

The shallow sediments on the upland adjacent to Kings Bay Naval Submarine Base are typified as fine to medium-grained sands interbedded with silty and/or clayey fine sands that extend to a depth of at least 50 feet below ground level. It is anticipated that these upland materials will also be present in the shoaled maintenance dredging areas within Range C to Range E.

There will be material in the channel dredge template that has sloughed in from the side slopes, containing gravel to boulder-size rock fragments, clay balls, and remnants of relict shell beds. The overdepth will also contain gravel to boulder-sized rock fragments and stiff clays remaining from channel deepening. Rock is present below the required dredge depth. Rock will be encountered in the allowable over depth areas. Any in situ rock, if encountered, is not required to be dredged.

This is an active navigation channel and trash and debris, such as ropes, anchors, aluminum cans, and plastic bottles from navigation activities are likely to be present in the materials to be dredged.

The boring locations are shown in Plate 1 through Plate 9.

2.2.1 Entrance Channel, Cut 1-N, Station 00+00 to Station 100+00

The shoaled materials in this portion of the Entrance Channel consist of fine to medium sand-sized quartz with some silt, and varying amounts of sand to gravel-sized shell fragments. Whole and broken angular shell fragments ranging in size from sand to cobble-size greater than 3” have been present in previous dredging events.

The western portion of this reach of the channel was originally excavated in rock; therefore, rock fragments could be encountered when dredging to the lower elevations. Any in-situ rock, if encountered, is not required to be dredged. Additionally, occasional beds of oyster shells were encountered during historical explorations.

2.2.2 North Turning Basin, Entrance Channel, Cut 1-N

The shoaled material in this portion of the north turning basin is predominately poorly graded, fine to medium sand-sized quartz with varying amounts of shell and silt. Past dredging events have also encountered fine sand-sized to gravel-sized shell fragments and whole shells.

2.2.3 South Turning Basin, Entrance Channel, Cut 1-N

The shoaled material in this portion of the south turning basin is predominately poorly graded, fine to gravel-sized shell fragments and fine to medium-sized sand-sized quartz. Hard, in situ limestone exists below the shoaled materials at approximately -45 feet MLLW.

2.2.4 Entrance Channel, Cut 1-N, Station 100+00 to Station 200+00

The shoaled materials in this portion of the channel and settling basin consist predominately of poorly graded, fine to medium sand-sized quartz with minor silt and varying amounts of sand to gravel-sized shell fragments. Whole and broken angular shell fragments ranging in size from sand to cobbles have been present in previous dredging events.

Materials that shoal in this area have been placed on the beach for numerous annual dredging cycles.

2.2.5 North Settling Basin, Entrance Channel, Cut 1-N

The shoaled materials in this portion of the north settling basin are predominately poorly graded, fine to medium sand-size quartz with medium sand-sized to cobble sized shell.

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 5

2.2.6 South Settling Basin, Entrance Channel, Cut 1-N

The shoaled materials in this portion of the south settling basin range from poorly-graded to silty sand, fine sand-sized quartz with silt and fine sand-sized to cobble sized shell fragments.

2.2.7 Entrance Channel, Cut 1-N, Station 200+00 to Station 500+00

The shoaled materials in this portion of the channel are highly variable in composition and has historically been placed in the ocean dredged material disposal site (ODMDS). It has been determined that the material does not consistently meet beach/nearshore quality criteria. Shoaled materials vary from poorly-graded, medium to fine sand-sized quartz to silty sand, silt, and clay with few shell fragments. Whole and broken angular shell fragments vary from sand to cobble-size greater than 3”.

2.2.8 Range A, Station 0+000 to Station 8+000, Range A1, Station 8+000 to Station 10+000, and Range A2, Station 10+000 to Station 12+000, Inner Entrance Channel

The shoaled material in this portion of the channel is predominately fine to medium-grained sand-size quartz with variable amounts of sand to gravel-sized shell.

2.2.9 Range B, Station 12+000 to Station 15+350, Inner Entrance Channel

The shoaled material in this portion of the channel is predominately clayey sand and clay with gravel to cobble-size limestone fragments. At some locations, some gravel sized limestone fragments left behind by previous dredging events may also be encountered.

2.2.10 Range C, Station 15+350 to Station 22+500, and Range D, Station 22+500 to Station 30+750, Inner Entrance Channel

Depending on the location or depth, the materials to be dredged include fine to medium-grain sized sand, silt, and clay. Trace to little shell is present. At some locations, gravel to cobble sized limestone fragments left behind by previous dredging events may be encountered.

2.2.11 Range E, Station 30+750 to Station 31+800, Inner Entrance Channel

Depending on the location or depth, the materials to be dredged include fine to medium sand grain sized, silt, and clay. Trace to little shell is present. At some locations, gravel to cobble sized limestone fragments left behind by previous dredging events may be encountered.

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.

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 6

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).

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.

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 7

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 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

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 8

Test/Procedure Method

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

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

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 9

Test/Procedure Method

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 Vibracore Data

Designation State Plane, GA East, NAD 83 Available for

Inspection Location within Project Easting (X) Northing (Y)

VB-KB05-01 881330 258570

Cut 1-N, Stations 0+00 to 100+00

VB-KB05-03 882651 258297

VB-KB05-06 884072 258523

VB-KB05-07 886343 258365

VB-KB05-09 888825 258803

VB-KB05-10 889060 258477

VB-KB05-11 889153 258748

VB-KB05-12 889346 258931

VB-KB05-13 889434 258879

VB-KB05-14 890166 258604

VB-KB05-15 890348 258695

VB-KB15-31 884932 258396

VB-KBEC2021-04 882577 258203 ✓

VB-KBEC2021-05 883327 258296 ✓

VB-KBEC2021-06 884234 258334 ✓

VB-KBEC2021-07 885087 258374 ✓

VB-KBEC2021-08 888520 258637 ✓

VB-KBEC2021-09 889867 258766 ✓

VB-KB05-04 883238 258653

North Turning Basin

VB-KB05-08 887010 258936

VB-KB15-34 882264 258890

VB-KB15-57 884173 259005

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 10

Inspection Location within Project Easting (X) Northing (Y)

VB-KB05-02 882386 257861

South Turning Basin

VB-KB05-05 883257 257988

VB-KB15-32 883633 258078

VB-KB15-33 882382 257928

VB-KBEC2021-01 882045 258089 ✓

VB-KBEC2021-02 882280 257838 ✓

VB-KBEC2021-03 882685 257848 ✓

VB-KB05-16 896152 259027

Cut 1-N, Stations

100+00 to 200+00

VB-KB15-22 895817 259065 ✓

VB-KB15-24 894483 259093 ✓

VB-KB15-25 893478 259012 ✓

VB-KB15-27 892012 259055 ✓

VB-KBEC2021-10 891195 258950 ✓

VB-KBEC2021-11 892221 258669 ✓

VB-KBEC2021-13 893238 258730 ✓

VB-KBEC2021-15 894778 259075 ✓

VB-KBEC2021-17 895895 258953 ✓

VB-KBEC2021-19 896765 258840 ✓

VB-KBEC2021-21 897825 258936 ✓

VB-KBEC2021-23 898703 259079 ✓

VB-KBEC2021-25 899839 258999 ✓

VB-KB05-12A 892714 259265 ✓

North Settling Basin

VB-KB05-17 898234 259559

VB-KB05-18 900139 259535

VB-KB15-17 901810 259588 ✓

VB-KB15-21 898324 259575 ✓

VB-KB15-23 895092 259387 ✓

VB-KB15-26 893019 259303 ✓

VB-KBEC18-1 902405 259687 ✓

VB-KBEC18-2 899117 259536 ✓

VB-KBEC18-3 896956 259548 ✓

VB-KBEC2021-12 892922 259150 ✓

VB-KBEC2021-14 894032 259200 ✓

VB-KBEC2021-16 895648 259285 ✓

VB-KBEC2021-18 896602 259322 ✓

VB-KBEC2021-20 897521 259370 ✓

VB-KBEC2021-22 898518 259412 ✓

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 11

Inspection Location within Project Easting (X) Northing (Y)

VB-KBEC2021-24 899407 259445 ✓

VB-KBEC2021-26 900430 259499 ✓

VB-KBEC2021-28 901290 259546 ✓

VB-KBEC2021-31 902263 259586 ✓

VB-KBEC2021-34 903421 259630 ✓

VB-KB05-19 900365 258890

South Settling Basin

VB-KB05-21 902740 259069

VB-KB15-15 903356 259020 ✓

VB-KB15-18 901191 258920 ✓

VB-KB15-20 899729 258861 ✓

VB-KB05-20 902731 259547

Cut 1-N, Stations

200+00 to 500+00

VB-KB05-22 903032 259346

VB-KB05-23 903295 259585

VB-KB05-24 903628 259374

VB-KB05-25 914898 260091

VB-KB05-26 915119 260078

VB-KB05-27 918825 260264

VB-KB05-28 919697 260322

VB-KB05-29 920298 260346

VB-KB05-30 922704 260458

VB-KB05-31 927311 260669

VB-KB15-1 923792 260497

VB-KB15-2 922316 260442

VB-KB15-3 921224 260392

VB-KB15-4 919801 260327

VB-KB15-5 918865 260291

VB-KB15-6 916107 260152 ✓

VB-KB15-7 915946 259703 ✓

VB-KB15-8 913553 259648 ✓

VB-KB15-9 913550 260030 ✓

VB-KB15-10 911003 259916 ✓

VB-KB15-11 909806 259863 ✓

VB-KB15-12 907005 259742 ✓

VB-KB15-13 904598 259619 ✓

VB-KB15-14 904632 259186 ✓

VB-KB15-16 903213 259587 ✓

VB-KB15-19 901015 259458 ✓

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 12

Inspection Location within Project Easting (X) Northing (Y)

VB-KB15-51 902134 259094 ✓

VB-KB15-52 903955 259400 ✓

VB-KB15-53 927366 260677

VB-KB15-54 928660 260745

VB-KB15-55 929384 260771

VB-KB15-56 902765 259319 ✓

VB-KBEC2021-27 900869 259182 ✓

VB-KBEC2021-29 901581 259014 ✓

VB-KBEC2021-30 901802 259383 ✓

VB-KBEC2021-32 902632 259171 ✓

VB-KBEC2021-33 903295 259336 ✓

VB-KBEC2021-35 904167 259291 ✓

VB-KBEC2021-36 904790 259403 ✓

VB-KBEC2021-37 905609 259581 ✓

VB-KBEC2021-38 906296 259263 ✓

VB-KBEC2021-39 906787 259738 ✓

VB-KBEC2021-40 907406 259390 ✓

VB-KBEC2021-41 908159 259570 ✓

VB-KBEC2021-42 908810 259792 ✓

VB-KBEC2021-43 909463 259556 ✓

VB-KBEC2021-44 910728 259631 ✓

VB-KBEC2021-45 911767 259797 ✓

VB-KBEC2021-46 912539 259715 ✓

VB-KBEC2021-47 913165 259978 ✓

VB-KBEC2021-48 913825 259983 ✓

VB-KBEC12-A-1 878826 259465

Range A, Station 4+100 to 8+000

VB-KBEC12-A-2 877275 259621

VB-KB15-35 878600 259528

VB-KB15-36 876431 260048 ✓

VB-KB15-37 874305 261421 ✓

VB-KBEC2021-49 878277 259223 ✓

VB-KBEC2021-50 877459 259594 ✓

VB-KBEC2021-51 874555 261291 ✓

VB-KBEC2021-52 873658 261409 ✓

Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 13

Inspection Location within Project Easting (X) Northing (Y)

VB-KBEC12-A1-1 872530 262666

Range A1, Station 8+000 to 10+000

VB-KBEC12-A1-2 873167 262226

VB-KBIC13-10 872262 262832

VB-KB15-38 873544 261894 ✓

VB-KBEC2021-53 873243 261877 ✓

VB-KBEC2021-54 872739 262351 ✓

VB-KBEC2021-55 871518 264138 ✓

Range A2, Station

10+000 to 12+000

VB-KBEC12-B-1 870747 266706

Range B, Station

12+000 to 15+350

VB-KBEC12-B-2 870901 265713

VB-KBIC13-09 870707 266949

VB-KB15-41 870642 266830

VB-KBEC2021-56 870990 265243 ✓

VB-KBEC2021-57 870801 266144 ✓

VB-KBEC2021-58 870606 267383 ✓

VB-KBEC12-C-1 870271 273938

Range C, Station

15+350 to 22+500

VB-KBEC12-C-2 870236 271654

VB-KBIC13-08 870285 272306

VB-KB15-42 870288 271184

VB-KB15-43 870460 274230

VB-KB15-44 870292 274828

VB-KB15-50 870079 268483

VB-KB15-58 870366 272970

VB-KB15-67 870703 271790

VB-KBEC2021-59 870494 268125 ✓

VB-KBEC2021-60 870212 271084 ✓

VB-KBEC2021-61 870291 272161 ✓

VB-KBEC2021-62 870296 273561 ✓

VB-KBEC2021-63 870229 274558 ✓

VB-KBIC13-05 869836 278778

Range D, Station

22+700 to 30+750

VB-KBIC13-06 870317 278686

VB-KBIC13-07 870179 276129

VB-KB15-45 869860 278725 ✓

VB-KB15-59 870339 275707

VB-KB15-60 870097 277345

VB-KB15-64 869557 283005

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 14

Inspection Location within Project Easting (X) Northing (Y)

VB-KB15-65 869853 281256

VB-KB15-66 870696 276245

VB-KB15-W1 870817 275952

VB-KB15-W2 870303 279061

VB-KB15-W3 869786 282211

VB-KBEC2021-64 870200 275313 ✓

VB-KBEC2021-65 870105 276889 ✓

VB-KBEC2021-66 870052 277783 ✓

VB-KBEC2021-67 870172 278519 ✓

VB-KBEC2021-68 869861 279497 ✓

VB-KBEC2021-69 869680 280472 ✓

VB-KBEC2021-70 869637 281297 ✓

VB-KBEC2021-71 869516 282083 ✓

VB-KBEC2021-72 869614 282888 ✓

VB-KBIC13-03 868545 283068

Range E, Station

30+750 to 31+800

VB-KB15-46 868586 283137 ✓

VB-KBEC2021-73 869229 283115 ✓

VB-KBEC2021-74 868746 283442 ✓

VB-KBEC2021-75 869093 283933 ✓

* Coordinates presented correspond to the project coordinate system and datum

Table 2. Available Surficial Samples Data

State Plane, GA East, NAD 83

Location within Project Easting (X) Northing (Y)

SS-KBEC09-2 884249 258269

Cut 1-N, Stations 0+00 to 100+00 SS-KBEC09-5 889560 258503

SS-KBEC09-6 890142 258949

SS-KBEC09-4 887346 259195 North Turning Basin

SS-KBEC09-1 882825 257916 South Turning Basin SS-KBEC09-3 886899 258062

SS-KBEC09-7 891617 259019

Cut 1-N, Stations 100+00 to 200+00

SS-KBEC09-8 892466 258676

SS-KBEC09-11 896018 258961

SS-KBEC09-14 900720 259005

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 15

Location within Project Easting (X) Northing (Y)

SS-KBEC09-9 893138 259298

North Settling Basin

SS-KBEC09-10 894673 259376

SS-KBEC09-12 898331 259640

SS-KBEC09-13 899497 259534

SS-KBEC09-15 901296 259615

SS-KBEC09-18 902733 259654

SS-KBEC09-21 903384 259671

SS-KBEC09-19 902780 258995 South Settling

Basin SS-KBEC09-22 903363 258997

SS-KBEC09-16 901626 259077

Cut 1-N, Stations 200+00 to 500+00

SS-KBEC09-17 902401 259079

SS-KBEC09-20 903185 259333

SS-KBEC09-23 903730 259553

SS-KBEC09-24 903857 259170

SS-KBEC09-25 904664 259635

SS-KBEC09-26 906074 259701

SS-KBEC09-27 906102 259262

SS-KBEC09-28 907010 259715

SS-KBEC09-29 908198 259362

SS-KBEC09-30 909191 259841

SS-KBEC09-31 910196 259471

SS-KBEC09-32 911202 259899

SS-KBEC09-33 912199 259544

Cut 1-N, Stations 200+00 to 500+00

SS-KBEC09-34 913198 259999

SS-KBEC09-35 914944 260080

SS-KBEC09-36 917321 260182

SS-KBEC09-37 918843 260290

SS-KBEC09-38 919755 260329

SS-KBEC09-39 922618 260452

SS-KBEC09-40 923777 260518

SS-KBEC09-41 927384 260675

GS-KBC03-1 870726 265008 Range B, Station

12+000 to 15+350 GS-KBC03-2 870446 266483

00 31 32 - 16

Location within Project Easting (X) Northing (Y)

GS-KBC03-3 870336 267947

Range C, Station 15+350 to 22+500

GS-KBC03-4 870336 269442

GS-KBC03-5 870438 270939

GS-KBC03-6 870535 272436

GS-KBC03-7 870634 273934

GS-KBC03-10 870280 274343

GS-KBC03-8 870201 275760

Range D, Station 22+500 to 30+750

GS-KBC03-9 870599 275426

GS-KBC03-11 870358 276910

GS-KBC03-12 870117 278391

* 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 3: Index Testing Available for this Project

Boring Designation

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

GS-KBC03-1 SP 17 4 grayish brown GS-KBC03-2 SP 9 2.5 grayish brown GS-KBC03-3 SP 9 2 gray GS-KBC03-4 SP 6 2.5 brown GS-KBC03-5 SP 2 3 grayish brown GS-KBC03-6 SC 0 32 grayish brown GS-KBC03-7 SC 1 23 gray GS-KBC03-8 SP 1 3 grayish brown GS-KBC03-9 SC 4 23 grayish brown GS-KBC03-10 SC 0 12 dark gray GS-KBC03-11 SC 3 15 dark gray GS-KBC03-12 SP-SC 7 8 light brown GS-KBC03-13 SP 6 3.2 gray GS-KBC03-14 SP-SC 1 5.5 grayish brown

SS-KBEC09-1 SP 70 10YR 5/3

SS-KBEC09-2 SP 84 10YR 5/3

SS-KBEC09-3 SP 59 10YR 5/2

SS-KBEC09-4 SP 58 10YR 5/2

SS-KBEC09-5 SP 62 10YR 5/1

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 17

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

SS-KBEC09-5 SP 58 10YR 5/2

SS-KBEC09-6 SP 36 10YR 5/1

SS-KBEC09-7 SP 51 10YR 5/2

SS-KBEC09-8 SP 39 10YR 5/1

SS-KBEC09-9 SP 59 10YR 5/2

SS-KBEC09-10 SP 54 10YR 5/1

SS-KBEC09-11 SP 46 10YR 5/1

SS-KBEC09-12 SP 30 5GY 3/1

SS-KBEC09-13 SP 83 10YR 5/3

SS-KBEC09-14 SP 6 5Y 4/1

SS-KBEC09-15 SP 11 10YR 5/1

SS-KBEC09-16 SM 5BG 3/1

SS-KBEC09-17 SM 5BG 3/1

SS-KBEC09-18 SP 17 10YR 5/1

SS-KBEC09-19 SM 10Y 3/1

SS-KBEC09-20 SM 10Y 2.5/1

SS-KBEC09-21 SP 1 10YR 5/1

SS-KBEC09-22 SM 10Y 2.5/1

SS-KBEC09-23 SM 10Y 3/1

SS-KBEC09-24 MH 10Y 2.5/1

SS-KBEC09-25 MH 5GY 3/1

SS-KBEC09-26 MH 5GY 2.5/1

SS-KBEC09-27 MH 5GY 2.5/1

SS-KBEC09-28 MH 5GY 2.5/1

SS-KBEC09-29 MH 5GY 2.5/1

SS-KBEC09-30 MH 5GY 3/1

SS-KBEC09-31 MH 5GY 3/1

SS-KBEC09-32 MH 5GY 2.5/1

SS-KBEC09-33 MH 5GY 2.5/1

SS-KBEC09-34 MH 5GY 2.5/1

SS-KBEC09-35 SM N 2.5/

SS-KBEC09-36 SP-SM 6 5Y 3/1

SS-KBEC09-37 SP 3 10Y 3/1

SS-KBEC09-38 SP 7 10G 4/1

SS-KBEC09-39 SP 15 10G 5/1

SS-KBEC09-40 SP 13 10G 5/1

SS-KBEC09-41 SP 2 10Y 4/1

VB-KB05-03 1 SP-SM 1 10.79 10Y 6/1

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 18

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KB05-04 1 SP-SM 22 9.91 10Y 6/1

VB-KB05-05 1 SP-SM 31 11.88 2.5Y 6/2

VB-KB05-06 1 GP 15 4.23 10Y 6/1

VB-KB05-07 1 SP 39 0.96 2.5Y 6/2

VB-KB05-08 1 SP 40 1.3 2.5Y 6/2

VB-KB05-09 1 SP 42 1.3 2.5Y 5/4

VB-KB05-10 1 SP 36 0.61 2.5Y 6/2

VB-KB05-11 1 SP 44 1.56 2.5Y 6/2

VB-KB05-12 1 SP 46 0.91 2.5Y 5/4

VB-KB05-12A 1 SP 42 0.97 2.5Y 6/2

VB-KB05-13 1 SP 38 2.59 2.5Y 5/4

VB-KB05-14 1 SP 35 1.94 2.5Y 6/2

VB-KB05-15 1 SP 41 1.06 2.5Y 5/4

VB-KB05-16 1 SP 35 1.76 2.5Y 5/4

VB-KB05-17 1 SP 29 2.1 10Y 5/1

VB-KB05-18 1 SP 23 1.41 2.5Y 5/2

VB-KB05-19 1 SP 18 3 2.5Y 7/1

VB-KB05-20 1 SP 8 1.57 2.5Y 7/1

VB-KB05-21 1 MH 5 53.89 N 3/

VB-KB05-22 1 SM 10 14.09 10Y 4/1

VB-KB05-23 1 SP 10 3.39 10Y 5/1

VB-KB05-24 1 SM 8 20.71 N 3/

VB-KB05-25 1 SM 8 43.13 N 3/

VB-KB05-26 1 MH 4 68.89 N 3/

VB-KB05-27 1 SP 5 1.95 10Y 6/1

VB-KB05-28 1 SP 12 1.88 10Y 6/1

VB-KB05-28 2 SP 10 3.45 10Y 6/1

VB-KB05-29 1 SP 12 2.63 10Y 6/1

VB-KB05-29 2 SP 21 4.37 10Y 5/1

VB-KB05-30 1 SP 16 1.72 10Y 6/1

VB-KB05-30 2 SP 32 1.73 10Y 5/1

VB-KB05-31 1 SP 12 1.64 10Y 6/1

VB-KBEC12-A-1 1 SP 31 1.11 5Y 6/2

VB-KBEC12-A1-1 1 SC 0.6 20.86 2.5Y 5/4

VB-KBEC12-A1-1 2 SP-SM 0 5.05 5Y 5/1

VB-KBEC12-A1-2 1 SP-SM 2.8 9.15 5Y 4/1

VB-KBEC12-A1-2 2 SM 8.9 20.5 5Y 4/3

VB-KBEC12-A1-2 3 SM 34.67 5Y 4/1

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 19

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC12-A-2 1 SP-SM 19.6 11.18 5Y 4/1

VB-KBEC12-B-1 1 SP-SM 2.4 9.96 2.5Y 4/1

VB-KBEC12-B-2 1 SP 12 3.57 5Y 5/2

VB-KBEC12-C-1 1 SM 0 15.31 5Y 3/1

VB-KBEC12-C-1 2 SM 44.58 5Y 3/1

VB-KBEC12-C-2 1 SP 1.1 0.99 5Y 5/1

VB-KBEC12-C-2 2 SM 0.3 13.5 5Y 4/1

VB-KBEC12-C-2 3 SM 14.92 5Y 5/1

VB-KBEC12-C-2 4 SM 17.83 5Y 4/1

VB-KBIC13-03 1 SC 0.7 25.54 2.5Y 3/2

VB-KBIC13-03 2 OH 0.4 95.01 10YR 3/2

VB-KBIC13-05 1 SW 2.9 0.49 10YR 5/6

VB-KBIC13-05 2 SC 2 29.7 2.5Y 3/1

VB-KBIC13-05 3 SP 0.4 1.65 2.5Y 6/1

VB-KBIC13-05 4 SW 24.3 1.81 2.5Y 4/1

VB-KBIC13-06 1 SW 7.14 2.5 2.5Y 5/4

VB-KBIC13-06 2 SC 1.6 20.97 10YR 3/2

VB-KBIC13-06 3 SW 13.1 3.18 10YR 6/2

VB-KBIC13-07 1 SP 2.4 1.79 10YR 5/6

VB-KBIC13-07 2 SC 1.1 28.31 10YR 3/2

VB-KBIC13-07 3 SP-SM 0.6 6.43 10YR 5/1

VB-KBIC13-08 1 SP-SM 1 6.59 5G 3/3

VB-KBIC13-08 2 SP-SM 0.2 6.92 5G 3/2

VB-KBIC13-08 3 SC 1.7 46.9 10YR 3/2

VB-KBIC13-09 1 SP 4.5 2.81 10YR 5/4

VB-KBIC13-09 2 SM 2.6 23.8 2.5Y 4/2

VB-KBIC13-09 3 SP 2.4 2.64 2.5Y 5/4

VB-KBIC13-09 4 SC 0.8 42.72 2.5Y 3/1

VB-KBIC13-09 5 SP 2.1 4.4 2.5Y 7/2

VB-KBIC13-10 1 SP 7 0.59 2.5Y 5/6

VB-KBIC13-10 2 SW 8.7 3.91 2.5Y 4/2

VB-KBIC13-10 3 SW-SC 0.1 5.76

VB-KB15-1 1 SP-SC 14.2 5.2 5GY 4/1

VB-KB15-2 1 SM 10.7 18.47 10Y 4/2

VB-KB15-11 1 MH 0 62.66 N 3/

VB-KB15-13 1 SM 0 42.1 10Y 3/1

VB-KB15-15 1 SM 0 36.65 5Y 5/2

VB-KB15-16 1 SM 0.8 15.04 5Y 4/2

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 20

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KB15-17 1 SW 7.1 1.47 5Y 7/2

VB-KB15-17 2 SW 9 0.48 5Y 7/2

VB-KB15-18 1 SP 6.3 2.97 5Y 5/2

VB-KB15-19 1 SW 17.2 2.6 5Y 5/2

VB-KB15-19 2 SM 1.4 12.74 5Y 4/2

VB-KB15-21 1 SW 19.5 1.44 5Y 7/2

VB-KB15-26 1 SW 40.6 1.04 5Y 6/2

VB-KB15-32 1 SM 0.4 17.96 N 7/

VB-KB15-32 2 SM 0.1 13.12 N 7/

VB-KB15-33 1 SM 0.2 14.08 5Y 7/2

VB-KB15-33 2 SM 0.3 12.06 5Y 4/2

VB-KB15-38 1 SW 4 3.25 5Y 4/2

VB-KB15-41 1 SC 0 18.32 10Y 5/1

VB-KB15-43 1 SP-SM 0 8.74 5Y 4/2

VB-KB15-46 1 CH 0 66.28 N 3/

VB-KB15-47 1 SM 0.5 17.09 5Y 4/2

VB-KB15-54 1 SP-SM 1.5 6.83 10Y 6/1

VB-KB15-58 1 SP 0 3.52 5Y 4/2

VB-KB15-58 2 SP-SM 0 5.68 N 5/

VB-KB15-65 1 SP 4.5 2.4 5Y 5/2

VB-KB15-W3 1 SP-SM 2.5 5.59 5Y 7/2

VB-KBEC18-1 1 SP 34.3 0.98 2.5Y 4/1

VB-KBEC18-1 2 SP 39.2 2.28 5Y 3/1

VB-KBEC18-1 3 SP 13.4 1.08 5Y 5/2

VB-KBEC18-1 4 SP 24.9 1.11 2.5Y 4/1

VB-KBEC18-2 1 SP 48.1 1.52 10YR 4/1

VB-KBEC18-2 2 SP 34.7 1.63 2.5Y 5/1

VB-KBEC18-2 3 SP 38.3 2.57 5Y 4/1

VB-KBEC18-2 4 SC 13.8 31.16 10Y 4/1

VB-KBEC18-3 1 Limestone 5.6 9.42 2.5Y 5/1

VB-KBEC18-3 2 Limestone 1.1 37.74 10YR 7/1

VB-KBEC18-3 3 Limestone 0 31.32 10Y 7/1

VB-KBEC2021-01 1 SP 0 1.60 10YR 6/1

VB-KBEC2021-02 1 Shell 35 0.10 10YR 7/3

VB-KBEC2021-02 2 Shell 25 1.93 10YR 7/3

VB-KBEC2021-02 3 Shell 25 1.69 10YR 7/3

VB-KBEC2021-02 4 Shell 40 3.36 10YR 7/3

VB-KBEC2021-03 1 Shell 45 3.85 10YR 7/3

VB-KBEC2021-03 2 Shell 45 4.18 10YR 7/3

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 21

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC2021-03 3 Shell 25 4.81 10YR 7/3

VB-KBEC2021-03 4 Shell 30 8.56 10YR 7/3

VB-KBEC2021-03 5 SP-SC 10 7.68 10YR 6/1

VB-KBEC2021-04 1 SC 5 11.97 10YR 6/2

VB-KBEC2021-04 2 SP-SC 10 5.71 10YR 6/2

VB-KBEC2021-05 1 Shell 35 4.11 10YR 6/2

VB-KBEC2021-05 2 Shell 35 4.90 10YR 6/2

VB-KBEC2021-06 1 Shell 65 0.62 10YR 7/3

VB-KBEC2021-06 2 SP-SM 0 5.22 5Y 3/2

VB-KBEC2021-06 3 SM 0 13.85 5Y 3/2

VB-KBEC2021-07 1 Shell 55 2.80 10YR 7/3

VB-KBEC2021-07 2 SM 25 19.01 10YR 6/2

VB-KBEC2021-07 3 Shell 45 5.48 10YR 7/3

VB-KBEC2021-08 1 Shell 55 1.75 10YR 6/2

VB-KBEC2021-08 2 SP 30 2.42 10YR 5/1

VB-KBEC2021-08 3 CH 0 74.94 10YR 4/1

VB-KBEC2021-08 4 SP 0 4.65 10YR 5/1

VB-KBEC2021-08 5 SP-SC 0 8.45 5Y 4/1

VB-KBEC2021-09 1 SP-SM 5 4.91 10YR 5/1

VB-KBEC2021-09 2 SP-SM 0 4.55 10YR 5/1

VB-KBEC2021-09 3 SP-SM 0 5.41 10YR 5/1

VB-KBEC2021-10 1 SP 15 3.10 10YR 5/1

VB-KBEC2021-10 2 Shell 30 2.72 10YR 5/1

VB-KBEC2021-10 3 SP-SC 0 4.88 5Y 4/1

VB-KBEC2021-10 4 SP 0 3.55 5Y 4/1

VB-KBEC2021-11 1 SP-SM 5 5.12 5Y 4/1

VB-KBEC2021-11 2 SP-SM 0 8.78 5Y 4/1

VB-KBEC2021-11 3 SP 0 2.22 5Y 4/1

VB-KBEC2021-12 1 SP-SM 5 7.68 10YR 5/1

VB-KBEC2021-12 2 Shell 35 8.42 10YR 5/1

VB-KBEC2021-12 3 Shell 30 2.90 10YR 5/1

VB-KBEC2021-12 4 Shell 55 4.11 10YR 5/1

VB-KBEC2021-12 5 SP-SC 20 6.19 5Y 4/1

VB-KBEC2021-13 1 SP 20 1.05 10YR 5/1

VB-KBEC2021-13 2 Shell 35 0.89 10YR 5/1

VB-KBEC2021-13 3 SP-SM 0 7.12 5Y 4/1

VB-KBEC2021-13 4 SP-SC 0 5.18 5Y 4/1

VB-KBEC2021-14 1 SP 30 2.59 10YR 5/1

VB-KBEC2021-14 2 SP-SM 0 5.88 5Y 4/1

VB-KBEC2021-15 1 SP 25 2.39 10YR 6/2

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 22

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC2021-15 2 SP 25 3.54 10YR 6/2

VB-KBEC2021-16 1 SP-SM 20 6.59 10YR 6/2

VB-KBEC2021-16 2 SM 0 19.43 10YR 6/2

VB-KBEC2021-17 1 SP 25 2.30 10YR 6/2

VB-KBEC2021-17 2 SP 25 1.70 10YR 6/2

VB-KBEC2021-18 1 SP 20 1.87 10YR 5/1

VB-KBEC2021-19 1 Shell 45 4.85 10YR 6/2

VB-KBEC2021-20 1 SP 15 2.05 10YR 6/1

VB-KBEC2021-20 2 SP 20 1.86 10YR 6/1

VB-KBEC2021-20 3 SP 10 1.03 10YR 5/1

VB-KBEC2021-20 4 SP 0 1.81 10YR 5/1

VB-KBEC2021-21 1 SP 30 1.09 10YR 6/1

VB-KBEC2021-21 2 SP 25 1.36 10YR 6/1

VB-KBEC2021-21 3 SP-SM 30 5.67 10YR 5/1

VB-KBEC2021-21 4 SP-SM 0 6.59 10YR 5/1

VB-KBEC2021-21 5 SP 0 1.56 10YR 6/1

VB-KBEC2021-22 1 SP 10 0.95 10YR 5/1

VB-KBEC2021-22 2 SP 30 2.92 10YR 5/1

VB-KBEC2021-22 3 SC 0 16.80 10YR 5/1

VB-KBEC2021-22 4 CL 5 49.31 10YR 5/1

VB-KBEC2021-22 5 SC 0 21.31 10YR 4/1

VB-KBEC2021-22 6 SM 0 18.92 5Y 4/2

VB-KBEC2021-23 1 SP 10 1.56 10YR 6/2

VB-KBEC2021-23 2 SP 5 1.78 10YR 5/1

VB-KBEC2021-23 3 SP-SC 0 10.20 10YR 6/1

VB-KBEC2021-23 4 SP-SC 0 6.42 10YR 6/1

VB-KBEC2021-23 5 SC 0 21.68 5Y 3/2

VB-KBEC2021-24 1 SP 20 1.37 10YR 5/2

VB-KBEC2021-24 2 SP-SC 30 5.36 10YR 5/1

VB-KBEC2021-24 3 SP-SC 0 5.10 10YR 6/1

VB-KBEC2021-25 1 SP 5 2.05 10YR 5/1

VB-KBEC2021-25 2 SP-SC 0 7.35 10YR 5/1

VB-KBEC2021-26 1 SP 10 2.28 10YR 6/2

VB-KBEC2021-26 2 SP 20 1.23 10YR 6/2

VB-KBEC2021-26 3 CL 5 48.59 10YR 2/1

VB-KBEC2021-26 4 SM 15 13.47 10YR 5/1

VB-KBEC2021-26 5 SP 5 1.53 10YR 5/1

VB-KBEC2021-27 1 SP-SM 0 11.38 10YR 4/2

VB-KBEC2021-27 2 SP 5 2.39 10YR 5/2

VB-KBEC2021-28 1 SP 10 1.94 10YR 6/1

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 23

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC2021-28 2 SP 10 1.41 10YR 6/1

VB-KBEC2021-28 3 SP 5 4.32 10YR 6/1

VB-KBEC2021-28 4 SM 0 14.22 10YR 6/1

VB-KBEC2021-28 5 SP 0 3.38 10YR 6/1

VB-KBEC2021-28 6 SM 5 19.02 10YR 5/1

VB-KBEC2021-29 1 SM 0 18.86 10YR 3/1

VB-KBEC2021-29 2 SP 0 4.51 10YR 3/1

VB-KBEC2021-29 3 SM 0 12.37 10YR 3/1

VB-KBEC2021-29 4 SP-SC 0 5.20 10YR 6/1

VB-KBEC2021-29 5 SP 10 3.32 10YR 6/1

VB-KBEC2021-30 1 SP-SM 0 6.24 10YR 4/1

VB-KBEC2021-30 2 SP 0 2.44 10YR 4/1

VB-KBEC2021-30 3 SP-SC 10 6.35 10YR 5/1

VB-KBEC2021-30 4 SP 20 3.23 10YR 5/1

VB-KBEC2021-31 1 SP 10 3.42 10YR 4/1

VB-KBEC2021-31 2 SC 0 30.57 10YR 3/1

VB-KBEC2021-31 3 SP-SM 0 7.07 10YR 4/1

VB-KBEC2021-31 4 SP-SM 0 6.23 10YR 4/1

VB-KBEC2021-31 5 SM 0 28.97 10YR 4/1

VB-KBEC2021-31 6 SP 0 2.35 10YR 5/1

VB-KBEC2021-32 1 CH 69.73 10YR 2/1

VB-KBEC2021-32 2 SM 0 19.51 10YR 4/1

VB-KBEC2021-32 3 SP 50 4.45 10YR 4/1

VB-KBEC2021-32 4 SP 0 3.71 10YR 4/1

VB-KBEC2021-32 5 SP-SC 0 7.67 10YR 4/1

VB-KBEC2021-33 1 SP 0 2.97 10YR 4/2

VB-KBEC2021-33 2 SP-SM 0 9.49 10YR 3/2

VB-KBEC2021-33 3 SP-SC 0 10.60 10YR 5/2

VB-KBEC2021-33 4 SP-SC 0 10.60 10YR 5/2

VB-KBEC2021-33 5 SP-SC 20 6.22 10YR 5/2

VB-KBEC2021-34 1 SP 0 3.90 10YR 5/1

VB-KBEC2021-34 2 MH 0 74.74 10YR 2/1

VB-KBEC2021-34 3 SP 0 4.17 10YR 5/1

VB-KBEC2021-34 4 SM 0 14.60 10YR 3/1

VB-KBEC2021-34 5 SP 0 2.53 10YR 5/1

VB-KBEC2021-35 1 SM 0 22.93 10YR 3/2

VB-KBEC2021-35 2 SP-SM 0 7.32 10YR 4/2

VB-KBEC2021-35 3 SM 0 28.92 10YR 2/1

VB-KBEC2021-35 4 SM 0 16.63 10YR 4/2

VB-KBEC2021-35 5 SC 0 12.40 10YR 5/2

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 24

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC2021-36 1 SM 0 12.62 10YR 4/1

VB-KBEC2021-36 2 SM 0 16.35 10YR 4/1

VB-KBEC2021-36 3 SP-SC 25 6.10 10YR 4/2

VB-KBEC2021-37 1 SP-SM 0 7.30 10YR 4/1

VB-KBEC2021-37 2 SP 30 3.10 10YR 6/1

VB-KBEC2021-37 3 SP 20 0.01 10YR 6/1

VB-KBEC2021-38 1 CH 0 85.11 10YR 2/1

VB-KBEC2021-38 2 SM 0 14.53 10YR 3/1

VB-KBEC2021-38 3 SP-SM 40 7.23 10YR 6/1

VB-KBEC2021-38 4 SP 0 2.73 5Y 5/2

VB-KBEC2021-39 1 CH 0 65.65 10YR 3/1

VB-KBEC2021-39 2 SM 0 18.73 5Y 4/1

VB-KBEC2021-39 3 SM 0 20.67 5Y 5/1

VB-KBEC2021-39 4 SM 0 12.01 5Y 4/1

VB-KBEC2021-39 5 SC 5 14.16 5Y 4/1

VB-KBEC2021-39 6 SP-SM 25 5.86 5Y 5/1

VB-KBEC2021-40 1 SM 0 27.01 5Y 3/1

VB-KBEC2021-40 2 SM 0 11.09 5Y 5/1

VB-KBEC2021-40 3 CH 0 46.70 5Y 2.5/1

VB-KBEC2021-41 1 SM 0 31.30 10YR 3/1

VB-KBEC2021-41 2 SM 0 17.24 10YR 3/1

VB-KBEC2021-41 3 CH 0 86.92 10YR 3/2

VB-KBEC2021-41 4 SP 0 3.77 10YR 6/2

VB-KBEC2021-42 1 SM 0 36.78 10YR 2/1

VB-KBEC2021-42 2 SP 0 2.36 2.5Y 5/1

VB-KBEC2021-42 3 SP 0 4.74 2.5Y 5/1

VB-KBEC2021-42 4 SP 0 0.91 2.5Y 5/1

VB-KBEC2021-42 5 SP 0 1.86 2.5Y 5/1

VB-KBEC2021-43 1 SM 0 38.81 2.5Y 3/1

VB-KBEC2021-43 2 SM 0 30.36 2.5Y 3/1

VB-KBEC2021-43 3 SC 0 15.76 2.5Y 3/1

VB-KBEC2021-43 4 SP 5 2.33 2.5Y 6/1

VB-KBEC2021-44 1 ML 0 44.72 5Y 2.5/1

VB-KBEC2021-44 2 SP-SM 5 8.02 5Y 5/1

VB-KBEC2021-44 3 SC 0 15.87 5Y 3/2

VB-KBEC2021-45 1 SM 0 37.89 5Y 4/1

VB-KBEC2021-45 2 SM 5 15.36 5Y 5/1

VB-KBEC2021-45 3 SHELL 35 6.63 5Y 5/1

VB-KBEC2021-45 4 SP-SM 10 4.63 5Y 5/1

VB-KBEC2021-45 5 SM 0 19.71 2.5Y 4/1

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 25

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC2021-46 1 MH 57.40 10YR 2/1

VB-KBEC2021-46 2 SM 0 28.90 10YR 2/1

VB-KBEC2021-46 3 SM 0 17.46 10YR 6/1

VB-KBEC2021-47 1 SM 0 35.45 10YR 2/1

VB-KBEC2021-47 2 SP-SM 0 6.06 2.5Y 5/1

VB-KBEC2021-47 3 SP-SM 0 8.18 2.5Y 5/1

VB-KBEC2021-47 4 SP 0 3.39 2.5Y 5/1

VB-KBEC2021-47 5 SM 0 12.23 2.5Y 5/1

VB-KBEC2021-47 6 SP 0 2.36 2.5Y 5/1

VB-KBEC2021-48 1 ML 0 49.03 10YR 2/1

VB-KBEC2021-48 2 CL 51.91 10YR 5/1

VB-KBEC2021-48 3 SP-SC 5 9.24 10YR 5/1

VB-KBEC2021-48 4 SC 0 37.24 2.5Y 5/1

VB-KBEC2021-49 1 SP 30 1.02 10YR 4/1

VB-KBEC2021-49 2 SP 15 1.19 10YR 4/1

VB-KBEC2021-49 3 SP-SM 20 9.03 5Y 3/2

VB-KBEC2021-50 1 SP 25 0.99 10YR 4/1

VB-KBEC2021-50 2 SP 30 2.35 10YR 4/1

VB-KBEC2021-50 3 SP-SM 0 7.38 10YR 4/1

VB-KBEC2021-51 1 SP-SM 0 10.25 2.5Y 5/1

VB-KBEC2021-51 2 SP-SM 0 9.70 2.5Y 5/1

VB-KBEC2021-51 3 SP-SC 0 10.98 2.5Y 5/1

VB-KBEC2021-53 1 SP 5 2.48 10YR 5/1

VB-KBEC2021-53 2 SP 0 2.87 10YR 5/1

VB-KBEC2021-54 1 SP 5 1.65 10YR 5/2

VB-KBEC2021-54 2 SP 0 3.55 10YR 5/2

VB-KBEC2021-55 1 SP 0 1.44 10YR 6/2

VB-KBEC2021-55 2 SP 10 1.96 10YR 6/2

VB-KBEC2021-55 3 SP-SM 0 10.15 5Y 5/2

VB-KBEC2021-56 1 SP-SM 5 8.81 10YR 4/2

VB-KBEC2021-56 2 SP-SM 0 10.06 10YR 4/2

VB-KBEC2021-56 3 LIMESTONE 0 24.45 10YR 5/2

VB-KBEC2021-56 4 LIMESTONE 0 23.30 10YR 5/2

VB-KBEC2021-57 1 SM 0 16.89 10YR 5/1

VB-KBEC2021-58 1 SC 0 20.49 10YR 5/1

VB-KBEC2021-58 2 SP-SC 0 5.57 10YR 5/1

VB-KBEC2021-59 1 SP 0 2.27 10YR 5/1

VB-KBEC2021-59 2 SP 0 4.16 10YR 5/1

VB-KBEC2021-60 1 SP 0 3.02 10YR 4/1

VB-KBEC2021-60 2 SP-SM 0 8.54 10YR 4/1

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 26

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC2021-60 3 SP-SM 0 10.38 10YR 4/1

VB-KBEC2021-60 4 SM 0 17.77 10YR 4/1

VB-KBEC2021-60 5 SP 0 1.08 10YR 4/1

VB-KBEC2021-61 1 SP-SM 0 6.11 10YR 4/1

VB-KBEC2021-61 2 SP 0 1.49 10YR 4/1

VB-KBEC2021-61 3 SP 0 2.70 10YR 4/1

VB-KBEC2021-61 4 SP 0 1.51 10YR 6/1

VB-KBEC2021-62 1 SP 0 2.48 10YR 5/1

VB-KBEC2021-62 2 SP 0 4.05 10YR 5/1

VB-KBEC2021-62 3 SP-SM 0 7.27 10YR 6/1

VB-KBEC2021-62 4 SP-SM 0 4.48 10YR 6/1

VB-KBEC2021-62 5 SP-SM 0 4.94 10YR 6/1

VB-KBEC2021-63 1 SM 0 29.94 10YR 3/1

VB-KBEC2021-63 2 SP-SM 0 8.14 10YR 3/1

VB-KBEC2021-63 3 ML 0 83.64 10YR 2/1

VB-KBEC2021-63 4 SM 20 14.73 10YR 3/1

VB-KBEC2021-63 5 SP 0 1.07 10YR 5/1

VB-KBEC2021-64 1 SM 0 29.17 10YR 5/1

VB-KBEC2021-64 2 SP 0 2.57 10YR 5/1

VB-KBEC2021-64 3 SP-SM 0 10.41 10YR 4/1

VB-KBEC2021-64 4 ML 0 50.62 10YR 4/1

VB-KBEC2021-64 5 SP 0 4.36 10YR 4/1

VB-KBEC2021-64 6 SC 10 21.24 10YR 5/1

VB-KBEC2021-65 1 SM 0 17.64 10YR 5/1

VB-KBEC2021-65 2 SP 0 2.21 10YR 5/1

VB-KBEC2021-65 3 SP 0 2.39 10YR 6/1

VB-KBEC2021-65 4 MH 0 86.44 5GY 5/2

VB-KBEC2021-66 1 SP-SM 0 9.06 10YR 6/3

VB-KBEC2021-66 2 SP 0 3.71 10YR 6/1

VB-KBEC2021-67 1 SP-SM 5 8.94 10YR 5/1

VB-KBEC2021-67 2 SP-SM 15 9.34 10YR 5/1

VB-KBEC2021-67 3 SP-SM 10 7.41 10YR 5/1

VB-KBEC2021-67 4 SP-SM 10 8.41 10YR 5/1

VB-KBEC2021-68 1 SC 0 17.87 10YR 7/1

VB-KBEC2021-69 1 SP 0 1.46 10YR 7/2

VB-KBEC2021-69 2 SP 0 1.30 10YR 7/2

VB-KBEC2021-70 1 SP 0 2.66 10YR 5/1

VB-KBEC2021-70 2 SP 0 0.50 10YR 5/1

VB-KBEC2021-70 3 SM 0 12.15 10YR 5/1

VB-KBEC2021-71 1 SM 0 12.74 10YR 5/1

Naval Submarine Base Kings Bay, Entrance Channel, Maintenance Dredging, Cut-1N Through Range-E, 49, 45, and 44-Foot Project, 00 31 32 - 27

Sample Number

USCS

Percent Visual

Shell (%) Percent

Fines (%) Munsell Color

VB-KBEC2021-71 2 SM 0 13.28 10YR 5/1

VB-KBEC2021-71 3 SP 0 4.58 10YR 5/1

VB-KBEC2021-71 4 SP 0 4.20 10YR 5/1

VB-KBEC2021-72 1 SM 0 17.44 10YR 6/1

VB-KBEC2021-72 2 SM 0 11.96 10YR 6/1

VB-KBEC2021-72 3 SM 0 13.84 10YR 6/1

VB-KBEC2021-72 4 SP 0 3.59 10YR 5/1

VB-KBEC2021-72 5 SP 0 1.67 5Y 5/2

VB-KBEC2021-73 1 SM 0 12.99 10YR 6/1

VB-KBEC2021-73 2 SM 0 11.75 10YR 6/1

VB-KBEC2021-73 3 SP-SM 0 6.31 5Y 5/2

VB-KBEC2021-73 4 SP-SM 0 8.56 5Y 5/2

VB-KBEC2021-74 1 SM 0 28.35 10YR 5/1

VB-KBEC2021-74 2 SP-SM 0 7.42 10YR 5/1

VB-KBEC2021-75 1 SP 0 2.54 10YR 5/1

VB-KBEC2021-75 2 SP-SM 0 8.15 10YR 5/1

VB-KBEC2021-75 3 SP 0 3.22 10YR 5/1

4.3 SUMMARY OF ADDITIONAL LABORATORY TESTING DATA

Suspended-sediment sample testing were Test data sheets are included in paragraph 4.7.

Table 4. Available Sedimentation Rate Data

Boring Number Sample

Depth (feet)

USCS

Final concentration (in grams per liter, g/l)

GS-KBC03-2 2 Surface SP 1471 GS-KBC03-2 7 Surface SC 1020 GS-KBC03-2 12 Surface SP-SC 1852

4.4 BORING LOG NOTES

All vibracore borings 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.

Surficial samples GS-KBC03-01 to GS-KBC03-14 and SS-KBEC09-1 to SS-KBEC09-22 were taken using a clam shell bucket sampler.

4.5 INSPECTION OF RECOVERED MATERIALS

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

00 31 32 - 28

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 - 29

Legend Boundary Line Channel Boundary Line Center Line

³

0 1.5 30.75 Miles

Project Location

Plate 4Plate 3Plate 2Plate 7

Plate 9

Station 0+00

Station 100+00

Station 200+00

Station 300+00

Station 400+00

Station 500+00Station

10+000

Station 20+000

Station 30+000

Plate 5

Dwn by:

Ckd by:

Dated:

DEPARTMENT OF THE ARMY

JACKSONVILLE DISTRICT, CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

PLATE NO.

1CRS

JLC

JLC

26 MAR 19

Dsn by:

KING'S BAY ENTRANCE CHANNEL

O&M GEOTECHICAL DATA REPORT

Geotechnical Drawings Not for Construction

Plate 6

Plate 8

Naval Submarine Base Kings Bay, Entrance Channel,…