GIWW_Gordon_GDR2016-8march2016.pdf

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Naples to Gordon Pass, Florida, Maintenance Dredging, 10 and 12-Foot Project, Collier County, Florida
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W912EP-16-B-0003
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SECTION 00 31 32

Geotechnical Data Report for

Maintenance Dredging, 12-Foot Project, GIWW Naples Gordon Pass, Collier County, Florida.

Prepared by

Geotechnical Branch

Engineering Division

Jacksonville District Corps of Engineers

8 March 2016

Table of Contents

1.1 SCOPE

1.2 CHARACTER OF MATERIALS

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

Maintenance Dredging, 12-Foot Project, GIWW Naples Gordon Pass, Collier County, Florida

SECTION 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 Local Geology

Collier County is located in southwest Florida and covers approximately 2,032 square miles. Its boundaries are formed by Lee and Hendry Counties, on the north, and Monroe County on the south. The shoreline of Collier County is characterized by sandy barrier islands backed by shallow bays, marshes, and mangrove areas. Collier County lies within the Atlantic Coastal Plain physiographic province and is part of the terraced coastal lowlands physiographic region. The terraced coastal lowlands were formed during the Pleistocene epoch when a series of glacial periods, or ice ages, brought about drastic changes in sea level. As a result of these sea level fluctuations, the Florida peninsula was alternately covered and uncovered by shallow seas. During periods of high sea levels large amounts of sediment were deposited, such as the Pamlico Sand which underlays the recent coastal sediments in Collier County. The Pamlico Sand is composed of fine to medium grained quartz sand and is 10-15 feet thick. Underneath those sediments, hard limestone of the Anastasia Formation is present.

SECTION 00 31 32-3

1.2.2 Materials Encountered

GIWW Naples Gordon Pass has been dredged historically multiple times.

The last dredging event was in 2009. The borings include in this GDR were collected in 2008. Therefore the materials presented on the boring logs and sediment gradation curves have been removed with subsequent shoaling. However, the historic boring logs provide still valid information about the materials in and below the dredge template and they indicate what type of dredge material can be expected.

Based on materials encountered during previous dredging events and the historic borings, the materials to be dredged consist of poorly-graded quartz sand with variable amounts of silt and gravel-size to sand-size shell fragments. Trash and debris may be present in the materials to be dredged.

The project site vicinity is depicted on plate B-1. All sampling locations are depicted on Plate B-2 and listed in Table 1. Laboratory data for the project area is summarized in Table 2.

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.

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.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-4

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.

Steeply Dipping (Dip) - 45 to 90 degrees.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-5

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 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

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-6

Test/Procedure Method Consolidation, each load of rebound increment with complete time ASTM D2435

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

ASTM

D2922/D3017

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

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

Making and Curing Concrete Test Specimens in the Lab (Set of 4) ASTM C192

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

Munsell Color Munsell Soil Color Charts

Organic Content, Test Method C ASTM D2974 Organic Impurities in Fine Aggregate ASTM C40 Permeability: Constant Head Permeability ASTM D2434 Permeability: Falling Head Permeability ASTM D5084 Petrographic Examination ASTM C295 Sampling Aggregate (Minimum 4 hours) ASTM D75 Sampling Freshly Mixed Concrete ASTM C172 Sedimentation Rate No ASTM Sieve Analysis of Aggregate ASTM C136 Slump of Hydraulic-Cement Concrete ASTM C143 Soil Classification (Boring logs) ASTM D 2488 Specific Gravity and Absorption of Fine Aggregate ASTM C128 Specific Gravity for Rock ASTM C127 Specific Gravity for Soil ASTM D854

SPLITTING TENSILE STRENGTH ASTM D3967

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

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

ASTM D4767

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-7

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

ASTM D2850

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

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

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

1.4 GEOMECHANICAL DATA

1.4.1 Summary of Field Investigations

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

Table 1. Available Vibracore Data

Designation State Plane, FL-East, NAD83

Project Location X Y

VB-NGP08-1 390819 639722

Cut-1 VB-NGP08-2 391604 639834

VB-NGP08-3 392063 639935

VB-NGP08-4 394157 641214 Cut-2

VB-NGP08-5 394909 642032 Cut-3

VB-NGP08-6 397955 643934 Cut-7

* 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 Designation

USCS

Visual Shell

Carbonate Content %

VB-NGP08-1 1 SP 0 6.9

VB-NGP08-1 2 SP 5

VB-NGP08-2 1 SP 5 23

VB-NGP08-2 2 SM 0

VB-NGP08-3 1 SP 10 24.2

VB-NGP08-3 2 SP 25

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-8

Boring Designation

Sample Designation

USCS

Visual Shell

Carbonate Content %

VB-NGP08-4 1 SP 25 15.3

VB-NGP08-5 1 SP 10 18.2

VB-NGP08-5 2 SP 5

VB-NGP08-6 1 SP-SM 5 14.7

1.4.3 Boring Log Notes

Borings VB-NGP08-1 through VB-NGP08-6 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

1.4.4 Recovered Materials

The material recovered from borings VB-NGP08-1 through VB-NGP08-6 is not available for inspection.

SECTION 00 31 32-9

ORLANDO

COCOA

TAMPA

FT MYERS

LAKE

OKEECHOBEE

PALM

WEST

BEACH

MIAMI

KEY WEST

GULF OF MEXICO

ALABAMA

GEORGIA

JACKSONVILLE

TALLAHASSEE

PENSACOLA

A T L

A N

T

IC

O

C E

A N

LOCATION

PROJECT

SITE VICINITY MAP

B-1Ckd by:

Dwn by:

Dsn by:

DEPARTMENT OF THE ARMY

Dated:

PLATE

US Army Corps of Engineers

Jacksonville District

JACKSONVILLE DISTRICT, CORPS OF ENGINEERS

JACKSONVILLE, FLORIDA

BJS

CJB

BJS

COLLIER COUNTY, FLORIDA

FOR PERMIT APPLICATION

GEOTECHNICAL DRAWINGS

NAPLES TO GORDON PASS

GIWW

JUNE 2012

N

OF WORK

LOCATION

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-10

SECTION 00 31 32-11

1.4.5 Boring Logs

Applicable boring logs are presented on the following pages.

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.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-12

-24.8

-11.2

-12.2

-12.7

-14.2

-14.7

-11.2-11.2

-19.2

-22.6

-24.813.6

0.0

8.0

11.4

0.0

S lig ht ly

W ea th er e d

-22.8 11.6

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace angular sand to gravel-sized shell up to 1/2", wet, 5Y 8/1 white (SP)

SAND, silty, mostly fine-grained sand-sized quartz, some angular sand to gravel-sized shell up to 2", wet, 5Y 4/2 olive gray (SM)

LIMESTONE, sandy, moderately hard, slightly weathered, very fine grained, 5Y 7/2 light gray

NOTES:

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-NGP08-1

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-NGP08-1

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine 271 Vibracore Unit

V. J. Thompson III, Civil Engineer

South Atlantic

N/A

2007D19

Alpine Ocean Seismic, Inc.

NAPLES to BIG MARCO PASS

Naples to Gordon's Pass

07-02-08

-11.2 Ft.

86 %

Tidal

NAD83

See Remarks

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

X = 390,819 Y = 639,722

Challenge Engineering & Testing, Inc.

13.6 Ft.

Jacksonville District

07-02-08

N/A

JUN 02

SAJ FORM 1836

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-13

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

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

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 1.0/1.5 SP*

2 3.0/3.5 SP*

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

NAPLES to BIG MARCO PASS NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-11.2 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 390,819 Y = 639,722

VB-NGP08-1

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-14

-23.6

-9.8

-11.0

-11.5

-15.3

-15.8

-9.8-9.8

-14.8

-15.8

-20.1

-23.613.8

0.0

5.0

6.0

10.3

0.0

-21.6 11.8

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace angular sand to gravel-sized shell up to 3/8", wet, 5Y 8/1 white (SP)

SAND, silty, mostly fine-grained sand-sized quartz, few silt, wet, 5Y 5/2 olive gray (SM)

SAND, poorly-graded, mostly fine-grained sand-sized quartz, trace angular sand to gravel-sized shell up to 3/8", wet, 5Y 8/1 white (SP)

SAND, silty, mostly fine-grained sand-sized quartz, few silt, trace angular sand to gravel-sized shell up to 1/2", trace clay, wet, 5Y 5/2 olive gray (SM) At El. -21.3 Ft., few subrounded limestone up to 1"

NOTES:

1. USACE Jacksonville is the custodian for

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-NGP08-2

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-NGP08-2

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine 271 Vibracore Unit

V. J. Thompson III, Civil Engineer

South Atlantic

N/A

2007D19

Alpine Ocean Seismic, Inc.

NAPLES to BIG MARCO PASS

Naples to Gordon's Pass

07-02-08

-9.8 Ft.

86 %

Tidal

NAD83

See Remarks

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

X = 391,604 Y = 639,834

Challenge Engineering & Testing, Inc.

13.8 Ft.

Jacksonville District

07-02-08

N/A

JUN 02

SAJ FORM 1836

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-15 these original files.

accordance with the Unified Soils Classification System.

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

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 1.2/1.7 SP*

2 5.5/6.0 SM*

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

NAPLES to BIG MARCO PASS NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-9.8 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 391,604 Y = 639,834

VB-NGP08-2

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-16

-25.6

-11.2

-13.0

-13.5

-15.0

-15.5

-11.2-11.2

-19.2

-25.614.4

0.0

8.0

0.0

-23.9 12.7

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, few angular sand to gravel-sized shell up to 1", wet, 5Y 8/1 white (SP)

SAND, silty, mostly fine-grained sand-sized quartz, little silt, few angular sand to cobble-sized shell up to 3-1/2", wet, Oyster Shell, 5Y 4/2 olive gray (SM)

NOTES:

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-NGP08-3

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-NGP08-3

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine 271 Vibracore Unit

V. J. Thompson III, Civil Engineer

South Atlantic

N/A

2007D19

Alpine Ocean Seismic, Inc.

NAPLES to BIG MARCO PASS

Naples to Gordon's Pass

07-02-08

-11.2 Ft.

88 %

Tidal

NAD83

See Remarks

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

X = 392,063 Y = 639,935

Challenge Engineering & Testing, Inc.

14.4 Ft.

Jacksonville District

07-02-08

N/A

JUN 02

SAJ FORM 1836

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-17

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

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

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

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 1.8/2.3 SP*

2 3.8/4.3 SP*

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

NAPLES to BIG MARCO PASS NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-11.2 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 392,063 Y = 639,935

VB-NGP08-3

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-18

-26.8

-11.8

-12.8

-13.3

-11.8-11.8

-14.7

-15.2

-16.9

-19.5

-26.815.0

0.0

2.9

3.4

5.1

7.7

0.0

S W

-22.2 10.4

Vibracore

Vibracore

Vibracore

SAND, poorly-graded, mostly fine-grained sand-sized quartz, little angular sand to gravel-sized shell up to 2", wet, Oyster Shell, 2.5Y 7/2 light gray (SP)

LIMESTONE, sandy, hard, slightly weathered, very fine grained, pitted, shell filled pits, 5Y 6/2 light olive gray SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, little silt, wet, 5Y 5/2 olive gray (SP-SM)

SAND, silty, mostly fine-grained sand-sized quartz, some silt, little clay, wet, 5Y 5/3 olive

(SM)

SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized carbonate, little angular sand to gravel-sized shell up to 1/2", wet, moderate cementation, 5Y 7/2 light gray

(SP-SM)

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-NGP08-4

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-NGP08-4

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine 271 Vibracore Unit

V. J. Thompson III, Civil Engineer

South Atlantic

N/A

2007D19

Alpine Ocean Seismic, Inc.

NAPLES to BIG MARCO PASS

Naples to Gordon's Pass

07-02-08

-11.8 Ft.

69 %

Tidal

NAD83

See Remarks

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

X = 394,157 Y = 641,214

Challenge Engineering & Testing, Inc.

15.0 Ft.

Jacksonville District

07-02-08

N/A

JUN 02

SAJ FORM 1836

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-19

NOTES:

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

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

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

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 1.0/1.5 SP*

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

NAPLES to BIG MARCO PASS NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-11.8 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 394,157 Y = 641,214

VB-NGP08-4

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-20

-22.4

-8.9

-9.9

-10.4

-13.3

-13.8

-8.9-8.9

-16.4

-22.413.5

0.0

7.5

0.0

-20.8 11.9

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SAND, poorly-graded, mostly fine to medium-grained sand-sized quartz, few angular sand to gravel-sized shell up to 1/2", wet, 5Y 8/2 pale yellow (SP)

At El. -12.3 Ft., trace angular sand to gravel-sized shell up to 3/4", trace organic matter, wet, Decayed Wood, 2.5Y 7/2 light gray

At El. -13.8 Ft., few angular sand to gravel-sized shell up to 2", discontinue organic matter

SAND, poorly-graded with silt, mostly fine-grained sand-sized carbonate, few angular sand to gravel-sized shell up to 3", wet, strong cementation, 5Y 7/1 light gray

(SP-SM)

NOTES:

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-NGP08-5

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-NGP08-5

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine 271 Vibracore Unit

V. J. Thompson III, Civil Engineer

South Atlantic

N/A

2007D19

Alpine Ocean Seismic, Inc.

NAPLES to BIG MARCO PASS

Naples to Gordon's Pass

07-01-08

-8.9 Ft.

88 %

Tidal

NAD83

See Remarks

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

X = 394,909 Y = 642,032

Challenge Engineering & Testing, Inc.

13.5 Ft.

Jacksonville District

07-01-08

N/A

JUN 02

SAJ FORM 1836

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-21

Classification System.

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

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 1.0/1.5 SP*

2 4.4/4.9 SP*

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

NAPLES to BIG MARCO PASS NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-8.9 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 394,909 Y = 642,032

VB-NGP08-5

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-22

-23.2

-9.7

-10.7

-11.2

-9.7-9.7

-14.6

-23.213.5

0.0

4.9

0.0

-19.7 10.0

Vibracore

Vibracore

Vibracore

SAND, poorly-graded with silt, mostly fine-grained sand-sized quartz, few silt, wet, 5Y 6/2 light olive gray (SP-SM)

CLAY, lean, low plasticity, soft, few angular sand to gravel-sized shell up to 2", wet, 5Y 8/2 pale yellow (CL)

At El. -18.2 Ft., few carbonate, wet, moderate cementation

NOTES:

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

DIVISION INSTALLATION

VERTICAL

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-NGP08-6

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

VERTICAL

OF

VB-NGP08-6

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

INCLINED

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

(Continued)

MLLW

Alpine 271 Vibracore Unit

V. J. Thompson III, Civil Engineer

South Atlantic

N/A

2007D19

Alpine Ocean Seismic, Inc.

NAPLES to BIG MARCO PASS

Naples to Gordon's Pass

07-01-08

-9.7 Ft.

74 %

Tidal

NAD83

See Remarks

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

X = 397,955 Y = 643,934

Challenge Engineering & Testing, Inc.

13.5 Ft.

Jacksonville District

07-01-08

N/A

JUN 02

SAJ FORM 1836

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-23

Classification System.

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

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 1.0/1.5 SM*

1 1.0/1.5 SP-SM*

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

DEPTH

RQD

OR

UD

B

LO

W S

FT

N -V

A

LU

E

REMARKSCLASSIFICATION OF MATERIALS %

REC.

LE

G

E N

D

ELEV.

B O

X O

R S

A M

P

LE

ELEVATION TOP OF BORING

Boring Designation

NAPLES to BIG MARCO PASS NAD83

DRILLING LOG (Cont. Sheet)

MLLW

-9.7 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 397,955 Y = 643,934

VB-NGP08-6

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OF 2

INSTALLATION

LOCATION COORDINATES

JUN 02

SAJ FORM 1836-A

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-24

1.4.6 Laboratory Testing Data

Applicable laboratory testing data are presented on the following pages.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-25

0.

0.

0.

F

IN

E C

O A

R S

E M

E D

IU

M

F

IN

E

0.

JU

N

C O

B B

L E

S

PERCENT COARSER BY WEIGHT

0.

P L

LL

40 90

B O

R

IN

G E

LE

V

D A

T E

N A

P

LE

S to

B

IG

M A

R C

O P

A S

S

N ap le s to G or do n' s

P as s

G R

A V

E L

C O

A R

S E

0.

H Y

D R

O M

E T

E R

G R

A D

A T

IO

N

C U

R V

E S

-1 1.

F t., M

LL

W

8/

/2

P R

O

JE

C T

B O

R

IN

G N

O

PERCENT FINER BY WEIGHT

P I w n

O rg

G

S

7/

(e st

V B

-N G

P

-1

U . S

. S T

A N

D A

R D

S

IE

V E

O P

E N

IN

G

IN

IN

C H

E S

U . S

. S T

A N

D A

R D

S

IE

V E

N U

M B

E R

S

S A

J F

O R

M

S A

N D

V is ua l S he ll/

C O

S

IL

T O

R C

L A

Y

G R

A

IN

S

IZ

E

IN

M

IL

L

IM

E T

E R

S

S am pl e

N o.

M un se ll

C la ss if ic at io n

S A

N D

, p oo rly -g ra de d

S P

D ep th

1.

to

.5

F t.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-26

0.

0.

F

IN

E C

O A

R S

E M

E D

IU

M

F

IN

E

0.

JU

N

C O

B B

L E

S

PERCENT COARSER BY WEIGHT

0.

P L

LL

40 90

B O

R

IN

G E

LE

V

D A

T E

N A

P

LE

S to

B

IG

M A

R C

O P

A S

S

N ap le s to G or do n' s

P as s

G R

A V

E L

C O

A R

S E

0.

H Y

D R

O M

E T

E R

G R

A D

A T

IO

N

C U

R V

E S

-1 1.

F t., M

LL

W

8/

/2

P R

O

JE

C T

B O

R

IN

G N

O

PERCENT FINER BY WEIGHT

P I w n

O rg

G

S

(e st

V B

-N G

P

-1

U . S

. S T

A N

D A

R D

S

IE

V E

O P

E N

IN

G

IN

IN

C H

E S

U . S

. S T

A N

D A

R D

S

IE

V E

N U

M B

E R

S

S A

J F

O R

M

S A

N D

V is ua l S he ll/

C O

S

IL

T O

R C

L A

Y

G R

A

IN

S

IZ

E

IN

M

IL

L

IM

E T

E R

S

S am pl e

N o.

M un se ll

C la ss if ic at io n

S A

N D

, p oo rly -g ra de d

S P

D ep th

3.

to

.5

F t.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-27

0.

0.

F

IN

E C

O A

R S

E M

E D

IU

M

F

IN

E

0.

JU

N

C O

B B

L E

S

PERCENT COARSER BY WEIGHT

0.

P L

LL

40 90

B O

R

IN

G E

LE

V

D A

T E

N A

P

LE

S to

B

IG

M A

R C

O P

A S

S

N ap le s to G or do n' s

P as s

G R

A V

E L

C O

A R

S E

0.

H Y

D R

O M

E T

E R

G R

A D

A T

IO

N

C U

R V

E S

-9 .8

F t., M

LL

W

8/

/2

P R

O

JE

C T

B O

R

IN

G N

O

PERCENT FINER BY WEIGHT

P I w n

O rg

G

S

/5 es t)

V B

-N G

P

-2

U . S

. S T

A N

D A

R D

S

IE

V E

O P

E N

IN

G

IN

IN

C H

E S

U . S

. S T

A N

D A

R D

S

IE

V E

N U

M B

E R

S

S A

J F

O R

M

S A

N D

V is ua l S he ll/

C O

S

IL

T O

R C

L A

Y

G R

A

IN

S

IZ

E

IN

M

IL

L

IM

E T

E R

S

S am pl e

N o.

M un se ll

C la ss if ic at io n

S A

N D

, p oo rly -g ra de d

S P

D ep th

1.

to

.7

F t.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-28

0.

0.

F

IN

E C

O A

R S

E M

E D

IU

M

F

IN

E

0.

JU

N

C O

B B

L E

S

PERCENT COARSER BY WEIGHT

0.

P L

LL

40 90

B O

R

IN

G E

LE

V

D A

T E

N A

P

LE

S to

B

IG

M A

R C

O P

A S

S

N ap le s to G or do n' s

P as s

G R

A V

E L

C O

A R

S E

0.

H Y

D R

O M

E T

E R

G R

A D

A T

IO

N

C U

R V

E S

-9 .8

F t., M

LL

W

8/

/2

P R

O

JE

C T

B O

R

IN

G N

O

PERCENT FINER BY WEIGHT

P I w n

O rg

G

S

(e st

V B

-N G

P

-2

U . S

. S T

A N

D A

R D

S

IE

V E

O P

E N

IN

G

IN

IN

C H

E S

U . S

. S T

A N

D A

R D

S

IE

V E

N U

M B

E R

S

S A

J F

O R

M

S A

N D

V is ua l S he ll/

C O

S

IL

T O

R C

L A

Y

G R

A

IN

S

IZ

E

IN

M

IL

L

IM

E T

E R

S

S am pl e

N o.

M un se ll

C la ss if ic at io n

(S M

D ep th

5.

to

.0

F t.

Maintenance Dredging, 12-Foot Project, SECTION 00 31 32-29

0.

0.

F

IN

E C

O A

R S

E M

E D

IU

M

F

IN

E

0.

JU

N

C O

B B

L E

S

PERCENT COARSER BY WEIGHT

0.

P L

LL

40 90

B O

R

IN

G E

LE

V

D A

T E

N A

P

LE

S to

B

IG

M A

R C

O P

A S

S

N ap le s to G or do n' s

P as s

G R

A V

E L

C O

A R

S E

0.

H Y

D R

O M

E T

E R

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