Mayport_O M_GDR_2016_final.pdf

SECTION 00 31 32

Geotechnical Data Report for

U.S. Naval Station Mayport

Maintenance Dredging

50-Foot Project

Prepared by

Geotechnical Branch

Engineering Division

Jacksonville District Corps of Engineers

21 April 2016

Table of Contents

1.1 SCOPE

1.2 CHARACTER OF MATERIALS

1.2.1 The Regional and Local Geology

1.2.2 Materials Encountered

1.3 DEFINITIONS

1.3.1 Definitions of Basic Terms

1.3.2 Current Logging Terms

1.3.3 Previous Logging Terms

1.3.4 Testing and Procedure Methods

1.4 GEOMECHANICAL DATA

1.4.1 Summary of Field Investigations

1.4.2 Summary of Index Testing Data

1.4.3 Boring Log Notes

1.4.4 Recovered Materials

1.4.5 Boring Logs

1.4.6 Laboratory Testing Data

List of Tables

Table 1. Available Vibracore Data Table 2. Index Testing Available for this Project

List of Plates

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

U.S. Naval Station Mayport, Maintenance Dredging, 50-foot Project

00 31 32-2

1.1 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 1.4.5 and 1.4.6, respectively. A character of materials paragraph is included to provide a comprehensive description of the materials utilizing both recent and historical knowledge of the project area. Also included in this section are definitions of terms and boring log notes, which provide additional explanation of the boring logs and drilling techniques.

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

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

1.2 CHARACTER OF MATERIALS

1.2.1 The Regional and Local Geology

NAVASTA Mayport and the surrounding vicinity fall within the coastal lowlands physiographic division of northeast Florida, which runs parallel to the coastline and extends from the Atlantic Ocean to just west of downtown Jacksonville.

The regional geology of the Mayport area is characterized by Holocene to Upper Miocene age surficial deposits underlain by sediments of the Hawthorn Group, and followed by Eocene siliciclastic sands and marine carbonate sediments.

The surficial deposits are composed of Holocene to Pleistocene age, marine terrace and beach ridge sediments consisting of sands, silts, clays, and shell beds, and Pliocene/Upper Miocene age, tan or light gray sand, shell, sandy clay, and limestone. Those sediments are approximately 70 feet thick.

Underneath these surficial deposits follow the sediments of the Miocene age Hawthorn Group. They consist mainly of dark gray and olive green sandy to silty clay, clayey sand, clay, and sandy limestone, and contain moderate to large amounts of black phosphate sand, granules, and pebbles. The Hawthorn Group ranges in thickness from about 250 feet to as much as 500 feet. Although the formation thickens generally to the northeast, it varies in thickness from place to place because of both an

U.S. Naval Station Mayport, 00 31 32-3 irregular upper and lower surface. The Hawthorn Group occurs at depths ranging from approximately 50 to 200 feet below land surface throughout Duval County.

1.2.2 Materials Encountered

Vibracore borings VB-MPH08-5 through VB-MPH08-83 were completed in 2008 and the material shown on the logs within the dredging template has been removed during the recent harbor deepening event which was completed in 2012. However, those borings still give comprehensive information of material types shoaling in the channel and also of the underlying sediments.

Vibracore borings VB-MP13-1 through VB-MP13-9 were completed in 2013 and show shoaling which has occurred since the harbor deepening. Most of the shoaling material shown on the logs and gradation curves has been removed during the last dredging event in 2014 with subsequent shoaling of similar materials thus providing still valid information about the materials within the dredge template.

The encountered sediments within the dredging template consist of interbedded layers of clay, silt, silty sand, sand with silt, poorly-graded sand, and shell.

Construction debris, trash, insitu coquina rock, hard and stiff clays were encountered during the recent harbor deepening; therefore leftovers and high spots with this type of material could be encountered in the overdepth and below. Insitu rock, if encountered, is not required to be dredged but the location is to be reported to the COR.

1.3 DEFINITIONS

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

1.3.1 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.

1.3.2 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.

U.S. Naval Station Mayport, 00 31 32-4

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).

U.S. Naval Station Mayport, 00 31 32-5

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.

1.3.3 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.

1.3.4 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

U.S. Naval Station Mayport, 00 31 32-6

Test/Procedure Method Compaction: 4" Mold, Standard Proctor ASTM D698 Compaction: 6" Mold, Modified Proctor ASTM D1557 Compaction: 6" Mold, Standard Proctor ASTM D698 Compressive Strength of Cast in Place Concrete Cylinders

ASTM C873

Compressive Strength of Cylindrical Concrete Specimens (Set of 4) ASTM C39

Compressive Strength of Lightweight Concrete ASTM C495 Consolidation, each load of rebound increment with complete time ASTM D2435

Density and Water Content of Soil by Nuclear Methods (Minimum 4)

ASTM

D2922/D3017

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

Density of Soil in Place by the Sand-Cone Method ASTM D1556 Direct Shear ASTM D3080 Drilled Cores and Sawed Beams of Concrete ASTM C42 Extraction of Bituminous Paving Mixtures ASTM D2172 Freezing and Thawing (up to 55 cycles) ASTM D5312 Grain size sieve Analysis ASTM D422 Hydrometer Analysis ASTM D422 Making and Curing Concrete Test Specimens in the Field (Set of 6) ASTM C31

Making and Curing Concrete Test Specimens in the Lab (Set of 4)

ASTM C192

Marshall Resistance to Plastic Flow (Set of 3) ASTM D1559 Material Passing No. 200 Sieve ASTM D1140 Modulus of Elasticity ASTM D3148 Moisture Content ASTM D2216

Munsell Color Munsell Soil Color Charts

Organic Content, Test Method C ASTM D2974 Organic Impurities in Fine Aggregate ASTM C40 Permeability: Constant Head Permeability ASTM D2434 Permeability: Falling Head Permeability ASTM D5084 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, U.S. Naval Station Mayport, 00 31 32-7

Test/Procedure Method Sulfate Soundness ASTM C88 Total Evaporable Moisture Content ASTM C566 Triaxial Compression Test for Rock with Strain Gages or LVDTs (per confining pressure) ASTM D2664

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

ASTM D4767

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

ASTM D2850

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

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

ASTM D2938

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

1.4 GEOMECHANICAL DATA

1.4.1 Summary of Field Investigations

The table below summarizes the field investigations data set available for this project.

Table 1. Available Vibracore Data

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

VB-MP13-1 525631 2203592

Mayport Turning Basin VB-MP13-2 526278 2203678

VB-MP13-3 526398 2204432

VB-MP13-4 528806 2203965 Mayport Approach Channel

VB-MP13-5 535014 2205087

Bar-Cut-3

VB-MP13-6 534612 2205642

VB-MP13-7 542969 2204844

VB-MP13-8 545468 2204540

VB-MP13-9 548323 2203510

VB-MPH08-5 525936 2204530

Mayport Turning Basin

VB-MPH08-7 526285 2203876

VB-MPH08-9 526606 2203294

VB-MPH08-10 526898 2204222

VB-MPH08-11 527507 2204534

VB-MPH08-12 527228 2203576

VB-MPH08-13 527020 2202950

VB-MPH08-14 527840 2203920

VB-MPH08-15 528386 2203815

Mayport Approach Channel

VB-MPH08-16 528809 2204311

U.S. Naval Station Mayport, 00 31 32-8

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

VB-MPH08-17 529360 2204049

Mayport Approach Channel VB-MPH08-18 529795 2204614

VB-MPH08-19 530353 2204305

VB-MPH08-20 530731 2204819

Mayport Approach Channel

VB-MPH08-21 531240 2204568

VB-MPH08-22 531676 2205049

VB-MPH08-23 532245 2204897

VB-MPH08-24 532983 2204998

VB-MPH08-25 533761 2205012

VB-MPH08-30 533683 2205236

Bar-Cut-3

VB-MPH08-32 534212 2205883

VB-MPH08-33 534276 2205353

VB-MPH08-34 534634 2205140

VB-MPH08-35 534943 2205424

VB-MPH08-36 535175 2205181

VB-MPH08-41 539213 2205270

VB-MPH08-42 539426 2204938

VB-MPH08-43 539611 2204514

VB-MPH08-44 539935 2204861

VB-MPH08-45 540244 2205165

VB-MPH08-46 540366 2204794

VB-MPH08-47 540641 2204440

VB-MPH08-48 540892 2204736

VB-MPH08-49 541181 2205080

VB-MPH08-50 541404 2204666

VB-MPH08-51 541612 2204235

VB-MPH08-52 541936 2204606

VB-MPH08-53 542205 2204909

VB-MPH08-54 542378 2204518

VB-MPH08-55 542621 2204159

VB-MPH08-56 542884 2204524

VB-MPH08-57 543175 2204834

VB-MPH08-58 543428 2204419

VB-MPH08-59 543592 2204081

VB-MPH08-60 543863 2204386

VB-MPH08-61 544169 2204694

VB-MPH08-62 544367 2204324

VB-MPH08-63 544597 2203972

VB-MPH08-64 544912 2204253

VB-MPH08-65 545208 2204571

VB-MPH08-66 545386 2204167

VB-MPH08-67 545607 2203809

VB-MPH08-68 545861 2204144

VB-MPH08-69 546162 2204453

VB-MPH08-70 546327 2204097

VB-MPH08-71 546576 2203739

VB-MPH08-72 546877 2204015

VB-MPH08-73 547216 2204329

VB-MPH08-74 547378 2203981

VB-MPH08-75 547588 2203582

VB-MPH08-76 547861 2203921

U.S. Naval Station Mayport, 00 31 32-9

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

VB-MPH08-77 548227 2204159

Bar-Cut-3

VB-MPH08-78 548372 2203775

VB-MPH08-79 548599 2203402

VB-MPH08-80 548922 2203698

VB-MPH08-81 549173 2204040

VB-MPH08-82 549351 2203680

VB-MPH08-83 549557 2203268

Coordinates presented correspond to the project coordinate system and datum

1.4.2 Summary of Index Testing Data

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

Table 2. Index Testing Available for this Project

Boring Designation

Sample

# USCS LL PL PI

Visual Shell

CO3

% GS

Munsell Color

VB-MP13-1

1 MH 0 N 4/

2 MH 0 N 4/

3 SP-SM 52 2.5Y 6/1

VB-MP13-2

1 MH 0 N 4/

2 SP-SM 8 10YR 5/1

3 MH 0 N 4/

4 SM 0 2.5Y 4/3

VB-MP13-3

1 MH 0 N 4/

2 MH 0 N 4/

VB-MP13-4

1 MH 0 N 4/

2 SP 0 2.5Y 3/1

VB-MP13-5

1 SP 62 2.5Y 5/2

2 SP-SM 5 N 5/

VB-MP13-6

1 SP 29 10YR 6/1

2 CH 0 10YR 4/1

VB-MP13-7

1 SM 7 5Y 5/2

2 SP 15 5Y 7/2

VB-MP13-8

1 SM 3 5Y 4/3

2 SM 5 5Y 4/1

VB-MP13-9

1 ML 4 N 4/1

2 SM 1 N 4/1

VB-MPH08-5

1 CH 0 5Y 3/2

2 SP-SM 0 5Y 4/3

3 SP 0 5Y 4/3

4 SP 0 5Y 4/3

VB-MPH08-7

1 CH 0 5Y 3/2

2 SM 0 5Y 5/2

3 SP-SM 0 5Y 4/2

4 SP-SM 0 5Y 4/2

VB-MPH08-9

1 CH 0 5Y 3/2

2 SM 5 2.5Y 8/4

3 SM 5 2.5Y 8/4

4 SP-SM 0 5Y 5/2

5 SP 0 5Y 5/2

U.S. Naval Station Mayport, 00 31 32-10

Boring

Sample

USCS LL PL PI

Visual Shell

CO3

GS

Munsell Color

VB-MPH08-10

1 CH 0 5Y 3/2

2 SM 0 5Y 4/2

3 SP-SM 0 2.6 5Y 4/2

4 SP 0 5Y 4/2

5 SP 0 5Y 7/2

VB-MPH08-11

1 CH 0 5Y 3/2

2 SP 0 5Y 4/2

3 SP 0 5Y 4/2

VB-MPH08-12

1 CH 67 17 50 0 2.25 5Y 3/2

2 CH 61 20 41 25 2.2 5Y 3/2

3 SP 80 2.5Y 7/6

4 SP 80 2.5Y 7/6

VB-MPH08-13

1 SM 5 2.5Y 7/3

2 SP-SM 0 2.5Y 3/2

3 SP 5 2.5Y 3/2

4 SP 0 2.5Y 3/2

VB-MPH08-14

1 CH 0 5Y 3/2

2 SP 80 2.5Y 8/2

3 SP-SM 0 2.5Y 6/6

4 SP 0 2.5Y 3/2

5 SP 0 2.5Y 3/2

VB-MPH08-15

1 CH 59 16 43 0 2.16 5Y 3/2

2 SM 10 2.5Y 7/3

3 SP 0 2.5Y 6/3

4 SP 0 5Y 4/2

5 SP 0 5Y 4/2

VB-MPH08-16

1 SM 0 5Y 4/3

2 SM 0 5Y 4/3

3 SP 90 2.67 5Y 6/2

4 SP 90 5Y 8/1

5 SP 0 5Y 8/2

VB-MPH08-17

1 CH 43 11 32 0 2.18 5Y 3/2

2 CH 0 5Y 3/2

VB-MPH08-18

1 SP-SM 0 2.1 5Y 8/1

2 SP 0 2.3 2.6 5Y 8/1

3 SP 0 1.4 5Y 8/1

4 SP 0 1.8 2.64 5Y 8/1

5 SP 0 5Y 8/1

VB-MPH08-19

1 CL 0 5.9 2.61 5Y 4/2

2 SP 0 1.1 5Y 8/1

3 SP 0 0.9 2.48 5Y 8/1

4 SP 0 2.6 5Y 8/1

5 SP 10 5Y 8/1

VB-MPH08-20

1 CH 0 5Y 3/2

2 CH 60 31 29 0 2.44 5Y 3/2

VB-MPH08-21

1 CH 0 5Y 3/2

2 CH 0 5Y 3/2

VB-MPH08-22

1 SM 0 1.6 2.62 2.5Y 8/1

2 SM 0 1.1 2.5Y 8/1

3 SM 0 2.5Y 8/1

VB-MPH08-23 1 MH 48 24 24 0 2.41 5Y 3/2

U.S. Naval Station Mayport, 00 31 32-11

Sample

USCS LL PL PI

Visual Shell

CO3

GS

Munsell Color

VB-MPH08-23 2 MH 0 5Y 3/2

VB-MPH08-24

1 SP-SM 5 2.5Y 3/2

2 SM 0 3 2.5 5Y 3/2

3 SP-SM 0 5Y 3/2

VB-MPH08-25

1 SP 50 30.7 2.68 5Y 8/2

2 SP 0 3.1 5Y 8/1

3 SP-SM 0 5Y 4/2

VB-MPH08-30

1 SM 0 16.2 5Y 4/3

2 SP-SM 0 5Y 4/3

3 SP-SM 0 5Y 4/3

VB-MPH08-32

1 SP-SM 0 5Y 5/3

2 SP-SM 0 5Y 5/3

3 SP-SM 0 5Y 5/3

4 SP-SM 0 5Y 5/3

5 SP-SM 5 5Y 5/3

VB-MPH08-33

1 SM 10 5Y 4/2

2 SP 25 5Y 8/2

3 SP-SM 35 5Y 6/1

4 SP 5 5Y 7/1

VB-MPH08-34

1 SP 75 5Y 8/2

2 SP 35 5Y 8/2

3 SP-SM 10 5Y 4/2

4 SM 10 5Y 4/3

VB-MPH08-35

1 SP 50 20.8 2.55 5Y 8/2

2 SP-SM 10 3.9 5Y 5/3

3 SP-SM 5 6.9 2.6 5Y 5/3

VB-MPH08-36

1 SP 5 8.7 5Y 7/1

2 SP-SM 0 6.9 2.5 5Y 5/2

3 SP-SM 0 7.5 5Y 5/2

4 SP-SM 0 5.6 2.54 5Y 5/2

VB-MPH08-40

1 CH 66 28 38 10 2.3 5Y 3/1

2 CH 5 5Y 3/1

VB-MPH08-41

1 CH 57 29 28 0 2.18 5Y 3/2

2 SM 0 5Y 8/1

3 SP 0 5Y 8/1

VB-MPH08-42

1 SP 0 5Y 8/1

2 SP 0 5Y 7/2

3 SP-SM 0 5Y 7/2

VB-MPH08-43

1 SP-SM 0 2.47 5Y 7/2

2 SP 0 1.4 5Y 8/1

3 SM 0 5Y 8/1

VB-MPH08-44

1 SP-SM 0 5Y 7/2

2 SM 0 5Y 8/1

3 SP 0 5Y 7/1

VB-MPH08-45

1 SM 5 5Y 5/2

2 SP-SM 0 5Y 8/1

3 SP-SM 0 5Y 8/1

4 SM 0 2.5YR 6/3

VB-MPH08-46

1 SM 0 5Y 6/3

2 SP 0 5Y 8/1

3 SP 0 5Y 8/1

U.S. Naval Station Mayport, 00 31 32-12

Sample

USCS LL PL PI

Visual Shell

CO3

GS

Munsell Color

VB-MPH08-47

1 SM 0 5Y 4/2

2 SM 0 5Y 4/2

3 SP 0 0.6 5Y 8/1

4 SP-SM 0 5Y 8/1

VB-MPH08-48

1 SM 29 13 16 0 2.6 5Y 3/1

2 SM 34 19 15 0 2.25 5Y 5/2

3 SP-SM 0 5Y 7/1

4 SM 0 5Y 7/1

VB-MPH08-49

1 SP 0 3.3 2.65 5Y 8/1

2 SP 0 5Y 8/1

3 SM 0 5Y 3/2

4 SM 0 5Y 3/2

5 SM 0 10Y 4/1

VB-MPH08-50

1 SM 5 5Y 4/3

2 CH 0 5Y 2.5/1

3 SP-SM 0 2.5Y 7/2

4 SP 0 5Y 8/1

VB-MPH08-51

1 SM 5 5Y 5/1

2 SM 15 5Y 5/1

3 SP-SM 5 2.55 5Y 5/1

4 ML 0 5Y 7/2

VB-MPH08-52

1 SP-SM 0 5Y 7/1

2 SM 5 5Y 3/2

3 SP-SM 0 5Y 8/1

4 SM 0 5Y 7/1

VB-MPH08-53

1 SP 0 2.6 5Y 7/1

2 SM 5 5Y 5/2

3 SP 0 5Y 5/2

4 SM 0 2.1 5Y 5/2

5 SP-SM 0 5Y 8/1

VB-MPH08-54

1 SM 5 5Y 7/1

2 SM 30 9 21 5 2.52 5Y 4/2

3 SM 0 5Y 6/2

4 ML 0 5Y 7/1

VB-MPH08-55

1 SM 10 5Y 4/1

2 SM 5 5Y 4/2

3 SM 5 5Y 4/2

4 SM 5 5Y 7/1

VB-MPH08-56

1 CL 0 2.5Y 2.5/1

2 SM 0 5Y 7/1

3 ML 10 5Y 4/2

4 SM 10 5Y 4/2

VB-MPH08-57

1 SP 0 3.1 5Y 7/1

2 SM 20 5Y 4/2

4 SM 5 5Y 4/2

3 SM 5 5Y 4/2

VB-MPH08-58

1 SM 0 5Y 2.5/1

2 SM 0 5Y 5/2

3 SM 5 5Y 5/2

4 SM 0 5Y 5/1

VB-MPH08-59 1 SM 26 4 22 0 2.51 5Y 3/2

U.S. Naval Station Mayport, 00 31 32-13

Sample

USCS LL PL PI

Visual Shell

CO3

GS

Munsell Color

VB-MPH08-59

2 SP 0 5Y 3/2

3 CL 60 18 42 0 2.39 5Y 3/2

VB-MPH08-60

1 SM 0 5Y 4/1

2 SM 25 5Y 3/1

3 ML 5 5Y 3/1

4 ML 0 5Y 3/1

VB-MPH08-61

1 SM 5 5Y 5/2

2 SP 0 5Y 7/1

3 SM 25 5Y 3/2

4 CL 43 17 26 5 2.27 5Y 3/2

5 CL 0 5Y 3/2

VB-MPH08-62

1 SM 5 5Y 6/1

2 SM 15 5Y 6/1

3 CH 15 5Y 2.5/1

4 CH 0 5Y 6/1

VB-MPH08-63

1 SM 0 5Y 2.5/1

2 SM 0 5Y 5/1

3 SM 5 5Y 5/1

4 CH 0 5Y 2.5/1

VB-MPH08-64

1 SM 5 5Y 2.5/1

2 SM 0 5Y 4/1

3 SM 5 5Y 4/1

4 CH 5 5Y 2.5/1

VB-MPH08-65

1 SP-SM 51 13 38 0 5Y 6/1

2 SM 0 5Y 5/1

3 SM 25 6 19 10 2.73 5Y 5/1

4 CH 10 5Y 2.5/1

VB-MPH08-66

1 SM 0 5Y 7/1

2 SM 0 5Y 5/2

3 SM 5 5Y 5/2

4 CH 10 5Y 2.5/1

5 CH 5 5Y 2.5/1

VB-MPH08-67

1 SM 5 5Y 5/1

2 SM 0 5Y 2.5/2

3 SM 5 5Y 4/1

4 SM 15 5Y 4/1

VB-MPH08-68

1 CH 0 2.5 5Y 2.5/1

2 SM 5 5Y 5/1

3 SP-SM 15 5Y 2.5/1

VB-MPH08-69

1 SM 0 5Y 6/2

2 CL 0 5Y 5/1

3 SM 15 5Y 5/1

VB-MPH08-70

1 SM 15 5Y 2.5/1

2 SM 5 5Y 6/1

3 SM 10 5Y 6/1

VB-MPH08-71

1 CH 0 5Y 2.5/1

2 SM 15 5Y 4/1

3 CL 10 5Y 4/1

VB-MPH08-72

1 CH 0 5Y 2.5/1

2 SM 15 5Y 4/1

3 SM 20 5Y 4/1

U.S. Naval Station Mayport, 00 31 32-14

Sample

USCS LL PL PI

Visual Shell

CO3

GS

Munsell Color

VB-MPH08-73

1 CH 34 10 24 0 2.52 5Y 2.5/1

2 SP-SM 5 5Y 3/2

3 CH 0 5Y 2.5/1

VB-MPH08-74

1 CL 5 5Y 3/1

2 SM 5 5Y 5/2

3 SM 10 5Y 5/2

VB-MPH08-75

1 CH 0 5Y 3/1

2 SM 10 5Y 4/3

3 SP-SM 25 5Y 4/3

VB-MPH08-76

1 SM 5 5Y 4/1

2 CL 48 16 32 5 2.37 5Y 4/1

3 SM 0 5Y 4/1

VB-MPH08-77

1 SM 5 5Y 3/1

2 SM 5 5Y 5/2

VB-MPH08-78

1 SM 5 5Y 3/1

2 SM 5 5Y 3/1

VB-MPH08-79

1 SM 10 5Y 3/1

2 SM 5 5Y 5/2

VB-MPH08-80

1 SM 37 14 23 5 2.52 5Y 3/1

2 SM 5 5Y 4/3

VB-MPH08-81

1 SM 10 5Y 3/2

2 SM 5 5Y 3/2

3 CH 0 5Y 3/1

VB-MPH08-82

1 CL 5 5Y 3/1

2 CL 0 5Y 3/1

VB-MPH08-83

1 SM 10 5Y 3/1

2 CL 5 5Y 3/1

USCS: Unified Soil Classification System; LL: liquid limit; PL: plastic limit; PI: Plastic Index; Org %: Organic Content; CO3%: Carbonate Content;

Gs: specific gravity

1.4.3 Boring Log Notes

All 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. The vibracore apparatus is equipped with a graph-type depth of penetration recorder.

1.4.4 Recovered Materials

The material recovered from VB-MP13-1 through VB-MP13-9 is available for inspection by prospective offerors at the Corps of Engineers District warehouse listed below:

Address: 3077 Talleyrand Avenue Jacksonville, Florida 32206

Hours: 7:00 am to 2:30 pm

U.S. Naval Station Mayport, 00 31 32-15

00 31 32-16

00 31 32-17

00 31 32-18

1.4.5 Boring Logs

Applicable boring logs are presented on the following pages.

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

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

U.S. Naval Station Mayport, 00 31 32-19

-49.8

-37.8

-40.8

-43.8

-47.8

-49.812.0

0.0

9.4

9.8 10.0

0.0-37.8-37.8

-47.2

-47.6 -47.8

Abbreviations:

SILT, inorganic-H, trace quartz, weak reaction with HCl, moist, N 4/ dark gray (MH)

At El. -45.7 Ft., few quartz, trace shell

At El. -46.5 Ft., trace quartz, discontinue shell

SAND, poorly-graded, mostly fine to coarse-grained sand-sized shell, little fine-grained sand-sized quartz, trace silt, trace limestone, strong reaction with HCl, moist, 10Y 7/1 light greenish gray (SP) SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, little fine to coarse-grained sand-sized shell, 2.5Y 6/1 gray

(SP)

SAND, poorly-graded with silt, mostly fine to coarse-grained sand-sized shell, some fine-grained sand-sized quartz, few silt, strong reaction with HCl, moist, 2.5Y 6/1 gray

(SP-SM)

At El. -48.5 Ft., 1.5" limestone piece

NOTES:

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-1

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-1

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-37.8 Ft.

N/A

NAD83

See Remarks

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

X = 525,631 Y = 2,203,593

MLLW

Corps of Engineers - CESAJ

12.0 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-20

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 3.0/3.2 MH*

2 6.0/6.2 MH*

3 10.0/10.2 SP-SM*

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell 3 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-37.8 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 525,631 Y = 2,203,593

VB-MP13-1

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-21

S

-53.9

-44.9

-45.4

-46.9

-48.9

-50.9

-53.99.0

0.0

1.0

2.0

3.7

4.8 4.9 5.3

6.0

0.0-44.9-44.9

-45.9

-46.9

-48.6

-49.7 -49.8 -50.2

-50.9

Abbreviations:

SILT, inorganic-H, trace fine-grained sand-sized quartz, weak reaction with HCl, moist, N 4/ dark gray (MH)

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, few sand to gravel-sized shell, trace silt, weak reaction with HCl, moist, 10YR 5/1 gray (SP) SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized quartz, few coarse-grained sand-sized shell, few silt, weak reaction with HCl, moist, 10YR 5/1 gray

(SP-SM)

SILT, inorganic-H, trace fine-grained sand-sized quartz, weak reaction with HCl, moist, N 4/ dark gray (MH)

SAND, poorly-graded with silt, some sand to gravel-sized limestone, little fine-grained sand-sized quartz, few fine to coarse-grained sand-sized shell, few silt, strong reaction with HCl, moist, 2.5Y 8/2 pale yellow (SP-SM) LIMESTONE, soft, slightly weathered, medium grained, intensely fractured, little fine-grained sand-sized quartz, trace silt, 2.5Y 7/4 pale yellow SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized quartz, few silt, trace shell, weak reaction with HCl, moist, 2.5Y 5/4 light olive brown (SP-SM) SAND, silty, mostly fine-grained sand-sized quartz, little silt, no reaction with HCl, moist, 2.5Y 4/3 olive brown (SM)

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 0.5/0.7 MH*

2 2.0/2.2 SP-SM*

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-2

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-2

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-44.9 Ft.

N/A

NAD83

See Remarks

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

X = 526,278 Y = 2,203,678

MLLW

Corps of Engineers - CESAJ

9.0 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-22

3 4.0/4.2 MH*

4 6.0/6.2 SM*

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell 3 Percent Visual Shell 4 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-44.9 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 526,278 Y = 2,203,678

VB-MP13-2

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-23

-52.6

-44.4

-47.4

-50.4

-52.68.2

0.00.0-44.4-44.4

Abbreviations:

SILT, inorganic-H, few fine-grained sand-sized quartz, no reaction with HCl, moist, N 4/ dark gray (MH)

From El. -52.1 to -52.3 Ft., little silt, fine to medium sand seam, 2.5Y 3/2 very dark grayish brown

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 3.0/3.2 MH*

2 6.0/6.2 MH*

*Lab visual classification based on gradation curve

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-3

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-3

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-44.4 Ft.

N/A

NAD83

See Remarks

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

X = 526,398 Y = 2,204,433

MLLW

Corps of Engineers - CESAJ

8.2 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-24

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-44.4 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 526,398 Y = 2,204,433

VB-MP13-3

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-25

-60.6

-50.5

-52.5

-55.5

-60.610.1

0.0

4.2

0.0-50.5-50.5

-54.7

Abbreviations:

SILT, inorganic-H, few fine-grained sand-sized quartz, weak reaction with HCl, moist, N 4/ dark gray (MH)

At El. -52.5 Ft., some fine-grained sand-sized quartz

At El. -54.4 Ft., little fine-grained sand-sized quartz, trace shell, 2.5Y 3/1 very dark gray SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, trace silt, trace shell, weak reaction with HCl, moist, 2.5Y 3/1 very dark gray (SP)

At El. -58.5 Ft., 2.5Y 3/2 very dark grayish brown

At El. -60.3 Ft., some fine to medium-grained sand-sized quartz, little fine-grained sand-sized limestone, little sand to gravel-sized shell, strong reaction with HCl, 5Y 6/3 pale olive

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-4

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-4

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-50.5 Ft.

N/A

NAD83

See Remarks

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

X = 528,806 Y = 2,203,966

MLLW

Corps of Engineers - CESAJ

10.1 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-26

ID DEPTH CLASSIFICATION

1 2.0/2.2 MH*

2 5.0/5.2 SP*

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-50.5 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 528,806 Y = 2,203,966

VB-MP13-4

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-27

-59.6

-49.6

-51.6

-54.6

-59.610.0

0.0

1.0

4.2

0.0-49.6-49.6

-50.6

-53.8

Abbreviations:

SAND, poorly-graded, mostly shell, strong reaction with HCl, moist, 2.5Y 5/3 light olive brown (SP)

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, some sand to gravel-sized shell, trace silt, 2.5Y 5/2 grayish brown (SP)

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few silt, few medium-grained sand-sized shell, weak reaction with HCl, moist, N 5/ gray (SP-SM)

At El. -57.0 Ft., trace limestone

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 2.0/2.2 SP*

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-5

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-5

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-49.6 Ft.

N/A

NAD83

See Remarks

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

X = 535,015 Y = 2,205,088

MLLW

Corps of Engineers - CESAJ

10.0 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-28

2 5.0/5.2 SP-SM*

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-49.6 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 535,015 Y = 2,205,088

VB-MP13-5

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-29

-57.1

-49.1

-51.1

-54.1

-57.18.0

0.0

3.9 4.1

0.0-49.1-49.1

-53.0 -53.2

Abbreviations:

SAND, poorly-graded, mostly fine to coarse-grained sand-sized quartz, little sand to gravel-sized shell up to 1/2", trace silt, strong reaction with HCl, moist, 10YR 6/1 gray (SP)

At El. -51.7 Ft., some shell

At El. -52.1 Ft., little shell

At El. -52.7 Ft., some shell SAND, silty, some fine to coarse-grained sand-sized quartz, little silt, little sand to gravel-sized shell up to 1/2", strong reaction with HCl, moist, 5Y 5/1 gray (SM) CLAY, fat, few fine-grained sand-sized quartz, no reaction with HCl, moist, 10Y 4/1 dark greenish gray (CH) At El. -54.1 Ft., trace fine-grained sand-sized quartz

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 2.0/2.2 SP*

2 5.0/5.2 CH*

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-6

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-6

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-49.1 Ft.

N/A

NAD83

See Remarks

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

X = 534,612 Y = 2,205,642

MLLW

Corps of Engineers - CESAJ

8.0 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-30

1 Percent Visual Shell 2 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-49.1 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 534,612 Y = 2,205,642

VB-MP13-6

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-31

-61.2

-49.4

-49.9

-52.4

-61.211.8

0.0 0.2

1.1 1.4

5.2

8.0 8.2

0.0-49.4-49.4 -49.6

-50.5 -50.8

-54.6

-57.4 -57.6

Abbreviations:

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, weak reaction with HCl, moist, 5Y 7/3 pale yellow (SP) SAND, silty, mostly fine-grained sand-sized quartz, little silt, weak reaction with HCl, moist, 5Y 5/2 olive gray (SM) At El. -50.4 Ft., some silt SILT, inorganic-H, little fine-grained sand-sized quartz, weak reaction with HCl, moist, 5Y 4/2 olive gray (MH) SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace silt, weak reaction with HCl, moist, 5Y 7/2 light gray (SP) At El. -52.4 Ft., little fine-grained sand-sized shell

SAND, silty, mostly fine-grained sand-sized quartz, little silt, no reaction with HCl, moist, 2.5" silt seam, 5Y 5/2 olive gray (SM)

At El. -55.6 Ft., some silt, 3.0" silt seam

SILT, inorganic-H, little fine-grained sand-sized quartz, weak reaction with HCl, moist, 5Y 3/2 dark olive gray (MH) SAND, silty, mostly fine-grained sand-sized quartz, little silt, weak reaction with HCl, moist, 5Y 4/1 dark gray (SM) At El. -59.2 Ft., some silt, trace shell, 10Y 4/1 dark greenish 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.

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-7

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-7

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-49.4 Ft.

N/A

NAD83

See Remarks

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

X = 542,969 Y = 2,204,844

MLLW

Corps of Engineers - CESAJ

11.8 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-32

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.5/0.7 SM*

2 3.0/3.2 SP*

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-49.4 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 542,969 Y = 2,204,844

VB-MP13-7

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-33

-60.7

-50.1

-51.1

-53.1

-60.710.6

0.0

1.0

4.9

0.0-50.1-50.1

-51.1

-55.0

Abbreviations:

SILT, inorganic-H, little fine-grained sand-sized quartz, weak reaction with HCl, moist, 5Y 4/3 olive (MH) At El. -50.3 Ft., little silt, 0.5" sand seam At El. -50.8 Ft., 1.0" sand seam SAND, silty, mostly fine-grained sand-sized quartz, little silt, trace shell, weak reaction with HCl, moist, 3.0" sand seam, 5Y 4/3 olive (SM) At El. -52.3 Ft., 5Y 4/2 olive gray

At El. -53.1 Ft., some silt, few medium-grained sand-sized shell, 5Y 4/1 dark gray

CLAY, fat, few fine-grained sand-sized quartz, weak reaction with HCl, moist, 10Y 4/1 dark greenish gray (CH)

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-8

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-8

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-50.1 Ft.

N/A

NAD83

See Remarks

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

X = 545,468 Y = 2,204,540

MLLW

Corps of Engineers - CESAJ

10.6 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-34

1 1.0/1.2 SM*

2 3.0/3.2 SM*

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-50.1 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 545,468 Y = 2,204,540

VB-MP13-8

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-35

-60.8

-49.8

-50.8

-52.8

-60.811.0

0.0

0.4

3.0

0.0-49.8-49.8

-50.2

-52.8

Abbreviations:

SAND, silty, mostly fine-grained sand-sized quartz, some silt, weak reaction with HCl, moist, 5Y 5/2 olive gray (SM) SILT, inorganic-L, some fine-grained sand-sized quartz, trace shell, weak reaction with HCl, moist, N 4/ dark gray (ML)

At El. -51.9 Ft., 1.5" sand seam, 5Y 5/2 olive gray

At El. -52.7 Ft., 5" sand seam SAND, silty, mostly fine-grained sand-sized quartz, little silt, trace shell, weak reaction with HCl, moist, N 4/ dark gray (SM)

At El. -57.4 Ft., some silt, trace shell, 10Y 4/1 dark greenish 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

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

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

VERTICAL

OF

VB-MP13-9

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

INCLINED

DIVISION INSTALLATION

VERTICAL

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-MP13-9

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

(Continued)

South Atlantic

N/A

6738-13-5275

Mayport Vibracoring 2013

Logging and Lab Analysis

06-18-13

-49.8 Ft.

N/A

NAD83

See Remarks

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

X = 548,323 Y = 2,203,510

MLLW

Corps of Engineers - CESAJ

11.0 Ft.

Jacksonville District

06-18-13

N/A

JUN 02

SAJ FORM 1836

U.S. Naval Station Mayport, 00 31 32-36

ID DEPTH CLASSIFICATION

1 1.0/1.2 ML*

2 3.0/3.2 SM*

/1.0 *

*Lab visual classification based on gradation curve

4. Additional Laboratory Testing

1 Percent Visual Shell 2 Percent Visual Shell

DEPTH

RQD

OR

UD

B

LO

W S

FT

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

N -V

A

LU

E

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF

ELEVATION TOP OF BORING

Boring Designation

Mayport Vibracoring 2013

-49.8 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 548,323 Y = 2,203,510

VB-MP13-9

INSTALLATION

LOCATION COORDINATES

NAD83

DRILLING LOG (Cont. Sheet)

MLLW

JUN 02

SAJ FORM 1836-A

U.S. Naval Station Mayport, 00 31 32-37

B O

X O

R S

A M

P

LE

CLASSIFICATION OF MATERIALS %

REC.ELEV.

B

LO

W S

FT

N -V

A

LU

E

LE

G

E N

D

SAND, poorly-graded, mostly medium-grained sand-sized quartz, wet, 5Y 4/3 olive (SP)

VB-MPH08-5

REMARKS

SAND, poorly-graded with silt, mostly medium-grained sand-sized quartz, trace silt, wet, 5Y 4/3 olive (SP-SM)

DEPTH

RQD

OR

UD

CLAY, fat, high plasticity, soft, wet, 5Y 3/2 dark olive gray (CH)

MANUAL HAMMER

DRILLING LOG

VERTICAL

17. TOTAL RECOVERY FOR BORING

Boring Designation

-42.4

10. COORDINATE SYSTEM/DATUM

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

-52.4

-42.4

-45.4

-45.9

-48.4

-48.9

-53.4

-53.9

-47.4

-56.9

-42.4 0.0

5.0

10.0

0.0

-56.4

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

OF

LOCATION COORDINATES

6. THICKNESS OF OVERBURDEN

VB-MPH08-5

4. NAME OF DRILLER

AUTO HAMMER

12. TOTAL SAMPLES

(Continued)

South Atlantic

COMPLETED

9. SIZE AND TYPE OF BIT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2007D16 0

20.0 Ft.

Jacksonville District

06-10-08

N/A

Bob Momberger, Geologist

JUN 02

SAJ FORM 1836

NAD83

18. SIGNATURE AND TITLE OF INSPECTOR

Alpine Ocean Seismic, Inc.

NAVSTA Mayport CVN Dredging

Mayport Turning Basin

06-10-08

-42.4 Ft.

Challenge Engineering &…