B.08 Tampa_Hbr_O&M_GDRFY25_27Jan25.pdf

SECTION 00 31 32

Geotechnical Data Report for

Tampa Harbor Maintenance Dredging

Upper Channels and Cut-G (PT)

Hillsborough County, Florida

Prepared by

Geosystems Branch

Engineering Division

Jacksonville District Corps of Engineers

27 January 2025

GEOTECHNICAL DATA REPORT

Table of Contents

1 SCOPE

2 CHARACTER OF MATERIALS

2.1 Regional and local Geology

2.2 Materials Encountered

3 DEFINITIONS

3.1 Definitions of Basic Terms

3.2 Current Logging Terms

3.3 Previous Logging Terms

3.4 Testing and Procedure Methods

4 GEOTECHNICAL DATA

4.1 Summary of Field Investigations

4.2 Summary of Index Testing Data

4.3 Boring Log Notes

4.4 Inspection of Recovered Materials

4.5 Boring Logs

4.6 Laboratory Testing Data

4.7 Vibracore Penetration Reports

List of Tables

Table 1. Available Vibracore Data Table 2. Available Surficial Samples Data Table 3: Index Testing Available for this Project

List of Plates

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

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT) Hillsborough County, Florida

SECTION 00 31 32-2

GEOTECHNICAL DATA REPORT

1 SCOPE

The information provided in this section encompasses the geotechnical field investigations available for this project. The investigations consist of borings and surficial samples. The associated boring logs and laboratory data are presented in paragraph 4.5 and 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 the data on the logs, including the materials description, legend, and blow counts. When evaluating the subsurface conditions, use all the data, including the character of materials paragraph and boring logs.

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

2 CHARACTER OF MATERIALS

2.1 REGIONAL AND LOCAL GEOLOGY

Much of Florida's surface is covered by a series of interbedded limestone, dolostone, sand and clay units ranging from the Eocene to Holocene Epoch.

The local geology of Hillsborough Bay consists of an uppermost layer of undifferentiated Quaternary Period sediments - comprised of siliciclastics, organic sediments and freshwater carbonates. Those sediments range in thickness from approximately 30 to 80 feet and are underlain by the 50 ft. to 330 ft. thick, Oligocene/Pliocene deposits of the Hawthorn Group consisting of phosphatic siliciclastics (sand, silt, and clay) and carbonates. Underneath the Hawthorn group are limestones and dolostones of the Ocala Limestone and Eocene Avon Park formation.

2.2 MATERIALS ENCOUNTERED

Tampa Harbor has been dredged for maintenance historically multiple times. The last time the Upper Channels were dredged was in 2021 and Cut-G in 2015.

The materials to be dredged are described on logs and gradation curves from vibracores collected in 2019 and 2010, and subsurface samples collected 2012, 2017, and 2023. The materials collected prior to 2022 which is presented on the included boring logs and sediment gradation curves have been removed by previous dredging events. Similar material has shoaled in since.

The material to be dredged is composed of supersaturated silt with trace to some sand (ML/MH), clay (OH), silty sand (SM), and clayey sand (SC). Various amounts of sand to gravel-sized shell and limestone fragments are blended in the materials to be dredged.

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-3

Upper Sparkman Channel shoal materials are littered with shipyard type debris such as wire rope, metal beams/debris, etc. due to the dry dock activities. There is also sandblasting grit mixed within the shoal materials near the dry dock at Ybor channel. This grit behaves differently from the typical shoaling material when pumped and can cause abrasion to the equipment.

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

Sand to boulder-sized rock fragments are present beneath the overdepth and in the side slopes and can slough into the channel during dredging. Any in-situ rock, if encountered, is not required to be dredged.

The project site vicinity is depicted on Plate 1 and sampling locations are presented on Plates 2 and 3 and listed in Table 1 & 2. Laboratory data for the project area is summarized in Table 3.

Available Vibracore Penetration Reports are included in paragraph 4.7.

3 DEFINITIONS

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

3.1 DEFINITIONS OF BASIC TERMS

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

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

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

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

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

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

3.2 CURRENT LOGGING TERMS

Definition of terms used on boring logs dated since 2000:

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

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

Cavity - Voids greater than the diameter of the core.

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

mm) for igneous or metamorphic rocks.

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

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

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

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

Dipping (Dip) - 20 to 45 degrees.

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

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

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

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

Flat (Dip) - 0 to 20 degrees.

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-4

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 ft. (9.1 cm) to 1 ft. (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 ft. (1.8 m).

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

Massive – Over 3 ft. (0.9 m) thick.

Medium-Bedded - 0.3 ft. (9.1 cm) to 1 ft. (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 ft. (30.5 cm) to 3 ft. (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 ft. (0.9 m) to 6 ft. (1.8 m).

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

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

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

Solid - Absence of voids.

Sparsely Fossiliferous – Less than 40 percent fossils.

Steeply Dipping (Dip) - 45 to 90 degrees.

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

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

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

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

Unweathered - No evidence of any mechanical or chemical alteration.

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

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

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

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

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

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

3.3 PREVIOUS LOGGING TERMS

Definition of terms used on boring logs dated before 2000:

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

Incompetent – Rock that disintegrates while coring; weak.

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-5

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

Poorly-Indurated – See semi-indurated.

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

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

3.4 TESTING AND PROCEDURE METHODS

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

ASTM C535

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

ASTM C131

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

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

ASTM

D2922/D3017

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 D6913 Hydrometer Analysis ASTM D7928 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

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-6

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

SPLITTING TENSILE STRENGTH ASTM D3967

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

ASTM D2664

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

ASTM D4767

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

ASTM D2850

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

ASTM D7012

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

ASTM D7012

Unconfined Compressive Strength for Soil ASTM D7012 Unit Weight and Absorption ASTM C127 Unit Weight of Aggregate ASTM C29/C29M Visual Percent Shell No ASTM Wetting and Drying ASTM D5313

4 GEOTECHNICAL DATA

4.1 SUMMARY OF FIELD INVESTIGATIONS

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

Table 1. Available Vibracore Data

Designation State Plane, FL-West, NAD83

Project Location Available for Inspection X Y

VB-TH19-61A 514204 1297097 Cut D (HB) Yes

VB-TH19-62 514732 1298026

Cut C (HB))

Yes

VB-TH19-63B 514555 1298704 Yes

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-7

Designation State Plane, FL-West, NAD83

Project Location Available for Inspection X Y

VB-TH19-64 513894 1299545

Cut D (HB)

Yes

VB-TH19-65 513324 1300781 Yes

VB-TH19-66 511946 1303672 Yes

VB-TH19-67 511434 1304764 Yes

VB-TH19-68 517894 1297860

East Bay Channel

Yes

VB-TH19-69 517521 1299306 Yes

VB-TH19-70B 518299 1300796 Yes

VB-THG10-01 476173 1256427

Cut-G

No

VB-THG10-02 475214 1256584 No

VB-THG10-03 473289 1256914 No

Table 2. Available Surficial Samples Data

Designation State Plane, FL-West, NAD83

Project Location Available for Inspection X Y

GS-THG23-01 471395 1257100

Cut-G

No

GS-THG23-02 471578 1256950 No

GS-THG23-03 471735 1256870 No

GS-THG23-04 471810 1257550 No

GS-THG23-05 472420 1257170 No

GS-THG23-07 474716 1256300 No

GS-THG23-08 474413 1256720 No

GS-THbr17-03 511363 1304837 Cut-D (HB) No

GS-THbr17-08 517200 1307694 East Bay Channel Exten. No

GS-THbr17-10 518775 1301350 East Bay Channel No

GS-THbr17-16 515307 1297147

Cut-C (HB)

No

GS-THbr17-17 515020 1296730 No

GS-THbr17-18 514803 1296266 No

GS-THbr17-20 514249 1297782 No

GS-TBD12-1 514588 1298825

Cut-D (HB)

No

GS-TBD12-3 513986 1299334 No

GS-TBD12-4 513974 1300142 No

GS-TBD12-5 513553 1300238 No

GS-TBD12-6 513084 1301231 No

GS-TBD12-7 513243 1301653 No

GS-TBD12-8 513001 1302184 No

GS-TBD12-9 512648 1302125 No

GS-TBD12-10 512327 1302755 No

GS-TBD12-12 512166 1303893 No

GS-TBD12-13 511644 1304203 No

GS-HBY12-1 513328 1312439 Ybor Channel No

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-8

State Plane, FL-West, NAD83

Project Location Available for Inspection X Y

GS-HBY12-2 513097 1314543

Ybor Channel

No

GS-HBY12-3 513090 1314943 No

GS-HBY12-4 513422 1315732 No

GS-TBS12-1 511863 1305086

Lower Sparkman Channel

No

GS-TBS12-2 511374 1305045 No

GS-TBS12-3 511456 1306052 No

GS-TBS12-4 511843 1306413 No

GS-HBEB12-1 517911 1299915 East Bay Channel No

GS-HBEB12-5 517559 1307066 East Bay Channel Extension

No

GS-HBEB12-6 516954 1307899 No

GS-HBEB12-7 516456 1308399 No

GS-HBPS12-4 518034 1298339 Port Sutton No

4.2 SUMMARY OF INDEX TESTING DATA

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

Table 3: Index Testing Available for this Project

Boring Designation

Sample Desig-nation

USCS LL PL PI

Org

Visual Shell

Wn GS

Munsell Color

VB-TH19-61A 1 ML 0 10YR 3/1

VB-TH19-61A 2 ML 0 10YR 3/1

VB-TH19-62 1 ML 0 10YR 3/1

VB-TH19-62 2 ML 0 10YR 3/1

VB-TH19-63B 1 SM 0 10YR 3/1

VB-TH19-63B 2 SM 0 10YR 3/1

VB-TH19-64 1 SM 0 10YR 3/1

VB-TH19-64 2 ML 0 10YR 3/1

VB-TH19-65 1 ML 2 10YR 3/1

VB-TH19-65 2 ML 0 10YR 3/1

VB-TH19-66 1 SM 0 10YR 3/1

VB-TH19-66 2 SM 0 10YR 3/1

VB-TH19-67 1 SM 0 10YR 3/1

VB-TH19-67 2 SM 0 10YR 3/1

VB-TH19-68 1 SM 0 10YR 3/1

VB-TH19-68 2 ML 0 10YR 3/1

VB-TH19-69 1 SM 0 10YR 3/1

VB-TH19-69 2 ML 6 10YR 3/1

VB-TH19-70B 1 ML 0 10YR 3/1

VB-TH19-70B 2 SM 0 10YR 3/1

VB-THG10-01 1 OH 0 10YR 3/1

VB-THG10-02 1 OH 0 10YR 4/1

VB-THG10-03 1 OH 0 10YR 4/1

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-9

Boring

Sample Desig-nation

USCS LL PL PI

Org

Visual Shell

Wn GS

Munsell Color

GS-TBD12-1 1 MH 61 55 6 2.57 10YR 3/1

GS-TBD12-3 1 MH 2.61 10YR 3/1

GS-TBD12-8 1 SM 2.68 10YR 4/1

GS-TBD12-12 1 SM 10YR 4/1

GS-HBY12-1 1 MH 2.65 10YR 3/2

GS-HBY12-3 1 SM 2.64 10YR 3/1

GS-HBY12-4 1 MH 69 41 28 2.6 10YR 3/1

GS-TBS12-2 1 MH 2.56 10YR 3/1

GS-TBS12-4 1 MH 2.59 10YR 3/1

GS-HBEB12-1 1 MH 2.62 10YR 3/1

GS-HBEB12-4 1 MH 2.64 10YR 3/1

GS-THbr17-03 1 MH 10Y 3/1

GS-THbr17-06 1 MH 10Y 2.5/1

GS-THbr17-08 1 MH 10Y 3/1

GS-THbr17-10 1 MH 10Y 4/1

GS-THbr17-16 1 MH 10Y 3/1

GS-THbr17-17 1 MH 10Y 4/1

GS-THbr17-18 1 MH 10Y 4/1

GS-THbr17-20 1 MH 10Y 4/1

GS-THG23-01 S-1 SC 8 0 103.0 10YR 3/1

GS-THG23-02 S-1 SC 82 25 57 0 110.6 10YR 3/1

GS-THG23-03 S-1 SC 0 87.1 10YR 3/1

GS-THG23-04 S-1 OH-Clay 15 0 244.0 10YR 3/1

GS-THG23-05 S-1 OH-Clay 0 247.3 10YR 3/1

GS-THG23-07 S-1 SC 0 48.4 10YR 3/1

GS-THG23-08 S-1 OH-Clay 0 256.2 10YR 3/1 USCS: Unified Soil Classification System; LL: liquid limit; PL: plastic limit; PI: Plastic Index;

Org %: Organic Content; wn: moisture content; Gs: specific gravity

4.3 BORING LOG NOTES

All vibracore borings were sampled using an Alpine style, pneumatic vertical hammer, vibracore drilling apparatus having a continuous 20-foot by 3 or 3 1/2-inch core barrel with clear plastic core liner that was advanced until a depth of 20 feet was reached or 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.

Surface Samples from the 2012 & 2017 series, and GS-THG23-01- GS-THG23-05, GS-THG23- 07, and GS-THG23-08 were collected with an AMS 6”x6”x6” clam shell sampler which weighs approximately 25 pounds. The sampler was tied to nylon rope and mounted on a shipboard winch with pulley. During sampling, the clam shell was allowed to free-fall from the winch at the target location.

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-10

4.4 INSPECTION OF RECOVERED MATERIALS

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

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

The recovered materials will be available for inspection during normal business hours as noted above, except Federal holidays, during the entire bid period. Prospective offerors shall notify the Chief, Geology and Explorations Section at DLL-CESAJ-BoringRequest@usace.army.mil at least four (4) working days before the visit.

The following information will be required to schedule the visit:

(1) Project title;

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

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

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

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

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

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

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-11

I 'I Palm Harbor

I I Dunedin!

rwater

Largo

!693!

lsa4!

Pi�llas P'k

Holmes Beach

Date:

28 Nov. 2023 us Army Corps o.,;,,n.d By, BUN of Engineers •"l [Kawn Sy: BUN

Jacksonville District

Lake Ma@0alene o l

Hillsborough

River State Par,.

11 Temple l'errace jsa9I

Egypt Lake-ieto

St Petersbur PlATE J

HILLSBOROUGH COUNTY

Tampa Harbor Maintenance Dredging Upper Channels and Cut-G (PT)

Hillsborough County, Florida Vicinity Map

Brandon

Bloom· 0

PLATE NO.

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-12

GS-TBS12%

Corrine St

Bermuda Boulevard

GS-TBD12-1 � � Gatx Or

Airport

GS-TBD12-

gS-TBD�-8

GS-TBD'�-7

B-TH19-6'.�

GS-TBD12-4

H19-64

VB-TH1

0.38 0.75 1.5 Miles

B12-6 -08

2-5

McKay Bay Wildlife Refuge

Raleigh St

Hartford-St

Santa Fe Rd Santa f Rd

Legend

• Vibracore Borings

© Surficial Samples

-- Tampa Harbor Channel

Date:

28 Nov. 2023 us Army Corps De,ign•d By, BUN of Engineers � Dr-awn Sy: BUN Jacksonville District

I

Tampa Harbor Maintenance Dredging Upper Channels and Cut-G (PT)

Hillsborough County, Florida Locations of Field Investigations

PLATE NO.

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-13

GS-

0 0.300.75 1.5 Miles

Date:

28 Nov. 2023 us Army Corps o.,;,,n.d By, BUN of Engineers •"l [Kawn Sy: BUN

Jacksonville District

N

GS-THG23-05

UJ-__ VB-THG 10-03

- G23-08

Cut-G

Legend

• Vibracore Borings

© Surficial Samples

-- Tampa Harbor Channel

Tampa Harbor Maintenance Dredging Upper Channels and Cut-G (PT)

Hillsborough County, Florida Locations of Field Investigations

PLATE NO.

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-14

4.5 BORING LOGS

Applicable boring logs are presented on the following pages.

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

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

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-15

-41.0

-41.4

-42.4

-51.5

Vibracore

Vibracore

Vibracore

SILT, inorganic-L, mostly silt, some fine-grained sand-sized quartz, trace fine gravel-sized limestone, weak reaction with HCl, black 10YR 2/1 to, 10YR 3/1 very dark gray (ML)

SAND, poorly-graded with silt, mostly fine to medium-grained sand-sized quartz, few silt, trace fine to coarse-grained sand-sized shell, strong reaction with HCl, mottled with dark gray 10YR 4/1 sandy silt, 10YR 5/2 grayish brown

(SP-SM)

LIMESTONE, moderately hard, highly weathered, 10YR 7/1 light gray No Recovery light gray 10YR 7/1 limestone in bit

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

-41.0-41.0

-46.4

-47.2

-48.3

-51.5 10.5

0.0

5.4

6.2

7.3

0.0

H ig hl y

W ea th e re d

-47.3 6.3

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-61A

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-61A

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 514,204 Y = 1,297,097

MLLW

N/A

Corps of Engineers - CESAJ

10.5 Ft.

Jacksonville District

10-09-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019

Cut D (HB)

10-09-19

-41.0 Ft.

60 %

SAJ FORM 1836

JUN 02

(Continued)

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-16

1 0.4/0.6 ML*

2 1.4/1.6 ML*

*Lab visual classification based on gradation curve

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Tampa Harbor Vibracoring 2019

-41.0 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 514,204 Y = 1,297,097

VB-TH19-61A

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-17

-41.2

-41.6

-42.6

-47.6

Vibracore

Vibracore

Vibracore

SILT, inorganic-L, high plasticity, mostly silt, some fine-grained sand-sized quartz, weak reaction with HCl, 10YR 3/1 very dark gray

(ML)

LIMESTONE, soft, highly weathered, 10YR 8/1 white No Recovery

BORING TERMINATED IN REFUSAL

NOTES:

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

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

3. Limestone

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 ML*

2 1.4/1.6 ML*

*Lab visual classification based on gradation curve

-41.2-41.2

-46.2

-46.6

-47.6 6.4

0.0

5.0

5.4

0.0

H ig hl y

W ea

-46.6 5.4

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-62

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-62

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 514,732 Y = 1,298,026

MLLW

N/A

Corps of Engineers - CESAJ

6.4 Ft.

Jacksonville District

10-09-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019

Cut C (HB)

10-09-19

-41.2 Ft.

84 %

SAJ FORM 1836

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-18

-41.1

-41.5

-42.5

-48.0

Vibracore

Vibracore

Vibracore

SAND, silty, high plasticity, mostly fine-grained sand-sized quartz, some silt, weak reaction with HCl, 10YR 3/1 very dark gray (SM)

LIMESTONE, soft, highly weathered, 10YR 8/2 very pale brown No Recovery

BORING TERMINATED IN REFUSAL

NOTES:

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

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

3. Limestone

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 SM*

2 1.4/1.6 SM*

*Lab visual classification based on gradation curve

-41.1-41.1

-46.3

-46.8

-48.0 6.9

0.0

5.2

5.7

0.0

H ig hl y

W ea th

-46.8 5.7

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-63B

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-63B

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 514,555 Y = 1,298,704

MLLW

N/A

Corps of Engineers - CESAJ

6.9 Ft.

Jacksonville District

10-09-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019

Cut C (HB)

10-09-19

-41.1 Ft.

83 %

SAJ FORM 1836

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-19

-40.2

-40.6

-41.6

-47.1

Vibracore

Vibracore

Vibracore

SAND, silty, high plasticity, mostly fine-grained sand-sized quartz, some silt, no reaction with HCl, 10YR 3/1 very dark gray (SM)

SILT, inorganic-L, mostly silt, some fine to medium-grained sand-sized quartz, no reaction with HCl, 10YR 3/1 very dark gray (ML)

SAND, silty, mostly fine-grained sand-sized quartz, some silt, strong reaction with HCl, white 10YR 8/1 grading into, 10YR 6/3 pale brown (SM)

LIMESTONE, soft, highly weathered, white 10YR 8/1 grading into, 10YR 5/2 grayish brown No Recovery

BORING TERMINATED IN REFUSAL

NOTES:

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

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

3. Limestone

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 SM*

2 1.4/1.6 ML*

*Lab visual classification based on gradation curve

-40.2-40.2

-41.6

-43.3

-46.2 -46.5

-47.1 6.9

0.0

1.4

3.1

6.0 6.3

0.0

H W

-46.5 6.3

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-64

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-64

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 513,894 Y = 1,299,545

MLLW

N/A

Corps of Engineers - CESAJ

6.9 Ft.

Jacksonville District

10-09-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019 Cut D (HB)

10-09-19

-40.2 Ft.

91 %

SAJ FORM 1836

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-20

-41.1

-42.5

-46.4

Vibracore

Vibracore

Vibracore

SILT, inorganic-L, high plasticity, mostly silt, some fine-grained sand-sized sand, weak reaction with HCl, 10YR 3/1 very dark gray

(ML)

LIMESTONE, soft, highly weathered, 10YR 8/2 very pale brown

No Recovery

BORING TERMINATED IN REFUSAL

NOTES:

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

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

3. Limestone

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 ML*

2 1.4/1.6 ML*

*Lab visual classification based on gradation curve

-41.1-41.1

-44.1

-45.6

-46.4 5.3

0.0

3.0

4.5

0.0

H ig hl y

W ea th e re d

-45.6 4.5

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-65

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-65

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 513,324 Y = 1,300,781

MLLW

N/A

Corps of Engineers - CESAJ

5.3 Ft.

Jacksonville District

10-09-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019 Cut D (HB)

10-09-19

-41.1 Ft.

85 %

SAJ FORM 1836

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-21

-39.6

-40.0

-41.0

-43.8

Vibracore

Vibracore

Vibracore

SAND, silty, high plasticity, mostly fine-grained sand-sized quartz, some silt, weak reaction with HCl, 10YR 3/1 very dark gray (SM)

LIMESTONE, soft, decomposed, 10YR 8/1 white

No Recovery

BORING TERMINATED IN REFUSAL

NOTES:

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

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

3. Limestone

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 SM*

2 1.4/1.6 SM*

*Lab visual classification based on gradation curve

-39.6-39.6

-42.2

-43.1

-43.8 4.2

0.0

2.6

3.5

0.0

D ec om po se d

-43.1 3.5

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-66

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-66

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 511,946 Y = 1,303,672

MLLW

N/A

Corps of Engineers - CESAJ

4.2 Ft.

Jacksonville District

10-15-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019 Cut D (HB)

10-15-19

-39.6 Ft.

83 %

SAJ FORM 1836

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-22

-34.3

-34.7

-35.7

-40.5

Vibracore

Vibracore

Vibracore

SAND, silty, high plasticity, mostly fine to medium-grained sand-sized quartz, some silt, no reaction with HCl, two large shells from 4.2'

- 4.4', 10YR 3/1 very dark gray (SM)

LIMESTONE, soft, highly weathered, with interbedded sand with silt (SP-SM), white, 10YR 8/1 white No Recovery

BORING TERMINATED IN REFUSAL

NOTES:

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

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

3. Limestone

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 SM*

2 1.4/1.6 SM*

*Lab visual classification based on gradation curve

-34.3-34.3

-38.8

-39.3

-40.5 6.2

0.0

4.5

5.0

0.0

H ig hl y

W ea th

-39.3 5.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-67

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-67

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 511,434 Y = 1,304,764

MLLW

N/A

Corps of Engineers - CESAJ

6.2 Ft.

Jacksonville District

10-15-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019

Cut D (HB)

10-15-19

-34.3 Ft.

81 %

SAJ FORM 1836

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-23

-43.8

-44.2

-45.2

-54.4

Vibracore

Vibracore

Vibracore

SAND, silty, high plasticity, mostly fine-grained sand-sized quartz, some silt, no reaction with HCl, 10YR 3/1 very dark gray (SM)

SILT, inorganic-L, mostly silt, some fine to medium-grained sand-sized quartz, no reaction with HCl, 10YR 3/1 very dark gray (ML)

SAND, silty, mostly fine to medium-grained sand-sized quartz, some silt, weak reaction with HCl, 10YR 3/1 very dark gray (SM)

LIMESTONE, soft, highly weathered, with interbedded sandy silt layers, 10YR 8/2 very pale brown No Recovery

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

-43.8-43.8

-45.2

-52.0

-53.0

-53.8

-54.4 10.6

0.0

1.4

8.2

9.2

10.0

0.0

H ig hl y

W ea

-53.8 10.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-68

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-68

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 517,894 Y = 1,297,860

MLLW

N/A

Corps of Engineers - CESAJ

10.6 Ft.

Jacksonville District

10-15-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019

East Bay Ext. Channel

10-15-19

-43.8 Ft.

94 %

SAJ FORM 1836

JUN 02

(Continued)

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-24

1 0.4/0.6 SM*

2 1.4/1.6 ML*

*Lab visual classification based on gradation curve

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Tampa Harbor Vibracoring 2019

-43.8 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 517,894 Y = 1,297,860

VB-TH19-68

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-25

-41.9

-42.9

-54.4

Vibracore

Vibracore

Vibracore

SAND, silty, high plasticity, mostly fine-grained sand-sized quartz, some silt, weak reaction with HCl, 10YR 3/1 very dark gray (SM)

SILT, inorganic-L, mostly silt, some fine to medium-grained sand-sized quartz, few fine to coarse-grained sand-sized shelll, weak reaction with HCl, 10YR 3/1 very dark gray (ML)

SAND, silty, mostly fine to medium-grained sand-sized quartz, some silt, strong reaction with HCl, gray 10YR 5/1 grading into, 10YR 6/2 light brownish gray (SM)

From El. -50.6 to -51.1 Ft., few subangular to subrounded sand to gravel-sized limestone, 10YR 7/3 very pale brown LIMESTONE, soft, highly weathered, 10YR 7/1 light gray No Recovery

NOTES:

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

2. Soils are field visually classified in

-41.5-41.5

-42.9

-45.8

-51.1

-51.9

-54.4 12.9

0.0

1.4

4.3

9.6

10.4

0.0

H ig hl y

W ea th e re d

-51.9 10.4

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-69

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-69

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 517,521 Y = 1,299,306

MLLW

N/A

Corps of Engineers - CESAJ

12.9 Ft.

Jacksonville District

10-15-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019

East Bay Channel

10-15-19

-41.5 Ft.

81 %

SAJ FORM 1836

JUN 02

(Continued)

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-26

accordance with the Unified Soils Classification System.

3. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 SM*

2 1.4/1.6 ML*

*Lab visual classification based on gradation curve

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Tampa Harbor Vibracoring 2019

-41.5 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 517,521 Y = 1,299,306

VB-TH19-69

NAD83 MLLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-27

-41.7

-42.1

-43.1

-45.4

Vibracore

Vibracore

Vibracore

SILT, inorganic-L, high plasticity, mostly silt, some fine-grained sand-sized quartz, no reaction with HCl, 10YR 3/1 very dark gray

(ML)

SAND, silty, high plasticity, mostly fine to medium-grained sand-sized quartz, some silt, no reaction with HCl, 10YR 3/1 very dark gray

(SM)

From El. -44.8 to -45.1 Ft., 5Y 7/1 light gray LIMESTONE, soft, highly weathered, 10YR 7/2 light gray At El. -45.4 Ft.

BORING TERMINATED IN REFUSAL

NOTES:

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

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

3. Limestone

4. Laboratory Testing Results

SAMPLE SAMPLE LABORATORY

ID DEPTH CLASSIFICATION

1 0.4/0.6 ML*

2 1.4/1.6 SM*

*Lab visual classification based on gradation curve

-41.7-41.7

-43.1

-45.1 -45.4 3.7

0.0

1.4

3.4

0.0

H

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-TH19-70B

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-TH19-70B

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

See Remarks

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

X = 518,299 Y = 1,300,796

MLLW

N/A

Corps of Engineers - CESAJ

3.7 Ft.

Jacksonville District

10-15-19

South Atlantic

N/A

American Vibracore Inc.

Tampa Harbor Vibracoring 2019

Port Sutton

10-15-19

-41.7 Ft.

100 %

SAJ FORM 1836

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-28

-32.7

-35.7

-36.7 -37.0

-43.6

-45.1

-47.5

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

Vibracore

SILT, organic-H, high plasticity, very soft, mostly silt, little clay, few organic matter, wet, 10YR 3/1 very dark gray (OH)

SILT, inorganic-L, low plasticity, soft, mostly silt, little fine-grained sand-sized quartz, few fine to coarse-grained sand-sized shell, wet, 2.5YR 6/2 pale red (ML)

At El. -40.7 Ft., 10YR 6/6 brownish yellow

From El. -43.6 to -45.1 Ft., few 1" to 3" thick peat layers, 10YR 5/1 gray

-32.7-32.7

-37.0

0.0

4.3

0.0

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-THG10-01

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-THG10-01

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

3.5-Inch Vibracore

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

X = 476,173 Y = 1,256,427

MLW

AVS - Vibracore

N/A

Corps of Engineers - CESAJ

20.0 Ft.

Jacksonville District

02-25-10

South Atlantic

N/A

American Vibracore Services

Tampa Harbor O&M

Cut G

02-25-10

-32.7 Ft.

90 %

Daniel G. Blaydes, Geotechnical Engineer, SAJ FORM 1836

JUN 02

(Continued)

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-29

-52.7

Vibracore

Vibracore

From El. -47.5 to -52.7 Ft., few 4" to 7" thick peat layers

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 3.0/4.0 OH*

*Lab visual classification based on gradation curve

-52.7 20.0

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Tampa Harbor O&M

-32.7 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 476,173 Y = 1,256,427

VB-THG10-01

NAD83 MLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

SAJ FORM 1836-A

JUN 02

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-30

SILT, organic-H, high plasticity, very soft, mostly silt, few organic matter, trace clay, wet, 10YR 4/1 dark gray (OH)

SILT, inorganic-L, low plasticity, soft, mostly silt, little fine-grained sand-sized quartz, few fine to medium-grained sand-sized shell, trace clay, wet, 2.5Y 6/1 gray (ML)

At El. -45.0 Ft., 3" layer of organic silt and peat

At El. -46.7 Ft., 6" layer of organic silt and peat

-32.5-32.5

-38.6

0.0

6.1

0.0 -32.5

-36.5

-37.5

-38.6

Vibracore

Vibracore

Vibracore

Vibracore

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E

REMARKS

N -V

A L

U E

B L

O W

S

F

T

DEPTH

(ft)

ELEV.

(ft)

INCLINED

DIVISION INSTALLATION

VERTICAL

14. ELEVATION GROUND WATER

HORIZONTAL

1. PROJECT

15. DATE BORING

7. DEPTH DRILLED INTO ROCK

2. BORING DESIGNATION

STARTED

3. DRILLING AGENCY

13. TOTAL NUMBER CORE BOXES

Boring Designation

17. TOTAL RECOVERY FOR BORING

10. COORDINATE SYSTEM/DATUM

MANUAL HAMMER

DRILLING LOG

CONTRACTOR FILE NO.

11. MANUFACTURER'S DESIGNATION OF DRILL

COMPLETED

18. SIGNATURE AND TITLE OF INSPECTOR

VERTICAL

OF

VB-THG10-02

UNDISTURBED (UD)

16. ELEVATION TOP OF BORING

BEARING

8. TOTAL DEPTH OF BORING

SHEETS

5. DIRECTION OF BORING

DISTURBED

DEG. FROM

VERTICAL

SHEET

12. TOTAL SAMPLES

9. SIZE AND TYPE OF BIT

6. THICKNESS OF OVERBURDEN

VB-THG10-02

4. NAME OF DRILLER

AUTO HAMMERLOCATION COORDINATES

NAD83

3.5-Inch Vibracore

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

X = 475,214 Y = 1,256,584

MLW

AVS - Vibracore

N/A

Corps of Engineers - CESAJ

20.0 Ft.

Jacksonville District

02-25-10

South Atlantic

N/A

American Vibracore Services

Tampa Harbor O&M

Cut G

02-25-10

-32.5 Ft.

85 %

Daniel G. Blaydes, Geotechnical Engineer, SAJ FORM 1836

JUN 02

(Continued)

Tampa Harbor Maintenance Dredging, Upper Channels and Cut-G (PT)

SECTION 00 31 32-31

At El. -49.2 Ft., 4" layers of organic silt and peat

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 4.0/5.0 OH*

*Lab visual classification based on gradation curve

-52.5 20.0 -52.5

Vibracore

INSTALLATION

LOCATION COORDINATES

COORDINATE SYSTEM/DATUMPROJECT HORIZONTAL

OFDRILLING LOG (Cont. Sheet)

ELEVATION TOP OF BORING

Boring Designation

Tampa Harbor O&M

-32.5 Ft.

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

Jacksonville District

VERTICAL

SHEETS

SHEET

X = 475,214 Y = 1,256,584

VB-THG10-02

NAD83 MLW

RQD

OR

UD

CLASSIFICATION OF MATERIALS %

REC.

L E

G E

N D

B O

X O

R S

A M

P L

E