20B0009 GDR_RTA _SPP_North_Reach_Segment_Brevard_County_.pdf

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Geotechnical Data Report for

Flood Control and Coastal Emergencies Project

Brevard County, Florida

Beach Renourishment

North Reach 2020

Prepared by

Geotechnical Branch

Engineering Division

Jacksonville District Corps of Engineers

15 June 2020

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 GEOMECHANICAL 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

List of Tables

Table 1. Available Boring Data Table 2: Index Testing Available for this Project

List of Plates

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

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GEOTECHNICAL DATA REPORT

1 SCOPE

The information provided in this section encompasses the geotechnical field investigations available for this project. The investigations consist of borings. The associated boring logs and laboratory data are presented in paragraphs 4.5 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 of the data on the logs, including the materials descriptions, and legend.

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.

2 CHARACTER OF MATERIALS

2.1 REGIONAL AND LOCAL GEOLOGY

Brevard County is located on Florida's central east coast bordering the Atlantic Ocean and lies within the Coastal Lowlands physiographic region characterized by terraced level plains. The regional geology of the project area is characterized by Pleistocene marine deposits of the Anastasia Formation overlain by recent beach sediments. The Anastasia Formation is comprised of interbedded sands and coquina type limestones. The most recognized facies of the Anastasia sediments is a pinkish brown, soft to moderately indurated coquina rock consisting of whole and fragmented shells in a matrix of sand or sparitic calcite. Sand occurs as light gray to tan and pinkish brown, unconsolidated to moderately indurated, unfossiliferous to very fossiliferous beds.

The Anastasia formation is underlain by siliciclastic Pliocene/Pleistocene age sediments, which in turn overlay unconformably the deposits of the Miocene Hawthorn Group. The lithology of the Hawthorn group is very diverse and includes clay, sand, limestone, dolomite and phosphorite.

2.2 MATERIALS ENCOUNTERED

Borrow area Canaveral Shoal 2 (CS II) is located approximately 8 Miles offshore Port Canaveral (Plate 1). A total of thirty-three borings were drilled to a maximum depth of -61.4 feet NAVD88.

The borings are designated CB-5, CB-6, CB-9, and CB98-1 through CB98-30. Boring locations are listed in Table 1 and depicted in Plate 2. Laboratory testing results are summarized in Table 2.

Note: The datum on the boring logs and lab data sheets is Mean Low Water (MLW). The dredge depth elevations on Plate 2 are in North American Vertical Datum 1988 (NAVD88). The conversion factor from MLW to NAVD88 is -3.3 feet.

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The encountered sediments within the dredging depth consist of tan to gray, poorly graded, fine to medium grained quartz sand with various amounts of sand to gravel-sized whole and broken shell.

Much of the materials documented on the boring logs have been removed in the course of previous dredging events. The thickness of the remaining useable sand within the dredging template can be obtained from the bathometric survey provided in the Plans. It is anticipated that any new shoaling sands exhibit similar characteristics as described above.

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' (6 mm) to 0.1' (3.0 cm).

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

Cavity - Voids greater than the diameter of the core.

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

mm) for igneous or metamorphic rocks.

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

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

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

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

Dipping (Dip) - 20 to 45 degrees.

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

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

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

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

Flat (Dip) - 0 to 20 degrees.

Fossiliferous – Greater than 40 percent fossils.

Hard (Hardness) - Difficult to scratch with a knife (cannot be pitted with a geology hammer, but can be chipped with moderate blows of the hammer).

Highly Fractured - Spacing 0.3' (9.1 cm) to 1' (30.5 cm).

Highly Weathered - Entire section is discolored; alteration is greater than 50%; some areas of slightly weathered rock are present; some minerals are leached away; retains only a fraction of its original strength (wet strength usually lower than dry strength).

Intact – Spacing greater than 6' (1.8 m).

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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.

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

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

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

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

Unweathered - No evidence of any mechanical or chemical alteration.

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

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

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

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

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

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

3.3 PREVIOUS LOGGING TERMS

Definition of terms used on boring logs dated before 2000:

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

Incompetent – Rock that disintegrates while coring; weak.

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

Poorly-Indurated – See semi-indurated.

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

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

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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 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

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Test/Procedure Method Sieve Analysis of Aggregate ASTM C136 Slump of Hydraulic-Cement Concrete ASTM C143 Soil Classification (Boring logs) ASTM D 2488 Specific Gravity and Absorption of Fine Aggregate ASTM C128 Specific Gravity for Rock ASTM C127 Specific Gravity for Soil ASTM D854 Splitting Tensile Strength ASTM D3967 Splitting Tensile Strength of Concrete Cylinders ASTM C496 Subsample Preparation ASTM D4220, Group B ASTM D4220, Sulfate Soundness ASTM C88 Total Evaporable Moisture Content ASTM C566 Triaxial Compression Test for Rock with Strain Gages or LVDTs (per confining pressure)

ASTM D2664

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

ASTM D4767

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

ASTM D2850

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

ASTM D2938

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

ASTM D2938

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

4 GEOMECHANICAL DATA

4.1 SUMMARY OF FIELD INVESTIGATIONS

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

Table 1. Available Boring Data

Designation State Plane, FL-East, NAD27 State Plane, FL-East, NAD83 Available for Inspection

X Y X Y

CB-5 676125 1481372 832362 1481536

CB-6 680127 1479846 836364 1480010

CB-9 677485 1478262 833722 1478426

CB98-1 676538 1477427 832775 1477591

CB98-2 677968 1476893 834205 1477057

CB98-3 679434 1476447 835671 1476611

CB98-4 680390 1477049 836627 1477213

CB98-5 678839 1477653 835076 1477817

CB98-6 676120 1478760 832357 1478924

CB98-7R2 674785 1479325 831022 1479489

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Designation State Plane, FL-East, NAD27 State Plane, FL-East, NAD83 Available for Inspection

X Y X Y

CB96-8 674776 1480590 831013 1480754

CB98-9 676079 1479974 832316 1480138

CB98-10 677543 1479332 833780 1479496

CB98-11 678921 1478872 835158 1479036

CB98-12 680484 1478541 836721 1478705

CB98-13 681224 1479733 837461 1479897

CB98-14 678919 1480252 835156 1480416

CB98-15 677507 1480751 833744 1480915

CB98-16 675003 1482131 831240 1482295

CB98-17 676028 1482815 832265 1482979

CB98-18 676895 1481623 833132 1481787

CB98-19 678845 1481228 835082 1481392

CB98-20 680089 1481445 836326 1481609

CB98-21 681521 1481028 837758 1481192

CB98-22 681266 1482446 837503 1482610

CB98-23 682262 1482680 838499 1482844

CB98-24 681138 1483379 837375 1483543

CB98-25 679736 1482734 835973 1482898

CB98-26 679538 1485389 835775 1485553

CB98-27 678312 1483776 834549 1483940

CB98-28 677853 1482465 834090 1482629

CB98-29 677038 1484700 833275 1484864

CB98-30 675856 1483955 832093 1484119

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

CB98-1 1 SP

CB98-1 6 SP

CB98-1 11 SP

CB98-2 1 SP

CB98-2 8 SP

CB98-2 16 SP

CB98-3 1 SP

CB98-3 8 SP

CB98-3 15 SP

CB98-4 1 SP

CB98-4 7 SP

CB98-4 13 SP

CB98-5 1 SP

CB98-5 8 SP

CB98-5 17 SP

CB98-6 1 SP

CB98-6 9 SP

CB98-6 17 SP

CB98-7R2 1 SP

CB98-7R2 8 SP

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Boring

Sample Designation

USCS

CB98-7R2 13 SP

CB98-8 1 SP

CB98-8 9 SP

CB98-8 17 SP

CB98-9 1 SP

CB98-9 9 SP

CB98-9 17 SP

CB98-10 1 SP

CB98-10 9 SP

CB98-10 17 SP

CB98-11 1 SP

CB98-11 9 SP

CB98-11 17 SP

CB98-12 1 SP

CB98-12 9 SP

CB98-12 17 SP

CB98-13 1 SP

CB98-13 10 SP

CB98-13 16 SP

CB98-14 1 SP

CB98-14 9 SP

CB98-14 17 SP

CB98-15 1 SP

CB98-15 9 SP

CB98-15 17 SP

CB98-16 1 SP

CB98-16 8 SP

CB98-16 16 SP

CB98-17 1 SP

CB98-17 6 SP

CB98-17 13 SP

CB98-18 1 SP

CB98-18 8 SP

CB98-18 16 SP

CB98-19 1 SP

CB98-19 9 SP

CB98-19 16 SP

CB98-20 1 SP

CB98-20 9 SP

CB98-20 16 SP

CB98-21 1 SP

CB98-21 9 SP

CB98-21 13 SP

CB98-22 1 SP

CB98-22 9 SP

CB98-22 13 SP

CB98-23 1 SP

CB98-23 9 SP

CB98-23 17 SP

CB98-24 1 SP

CB98-24 9 SP

CB98-24 16 SP

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Boring

Sample Designation

USCS

CB98-25 1 SP

CB98-25 7 SP

CB98-25 15 SP

CB98-26 1 SP

CB98-26 7 SP

CB98-26 11 SP

CB98-27 1 SP

CB98-27 8 SP

CB98-27 16 SP

CB98-28 1 SP

CB98-28 8 SP

CB98-28 14 SP

CB98-29 1 SP

CB98-29 9 SP

CB98-29 16 SP

CB98-30 1 SP

CB98-30 8 SP

CB98-30 16 SP

4.3 BORING LOG NOTES

All borings are vibracores and 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 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.

4.4 INSPECTION OF RECOVERED MATERIALS

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

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

The recovered materials will be available for inspection during normal business hours as noted above, except Federal holidays, during the entire bid period. Prospective offerors shall notify the project geologist at 904-232-1890 or Chief, Geology and Explorations Section at 904-232-1617 at least four (4) working days before the visit.

The following information will be required to schedule the visit:

(1) Project title;

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

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

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

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

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

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

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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. Some 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.

Note: The datum on the boring logs and lab data sheets is Mean Low Water (MLW). The dredge depth elevations on Plate 2 are in North American Vertical Datum 1988 (NAVD88). The conversion factor from MLW to NAVD88 is -3.3 feet.

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4.6 LABORATORY TESTING DATA

Applicable laboratory testing data are presented on the following pages.

Note: The datum on the boring logs and lab data sheets is Mean Low Water (MLW). The dredge depth elevations on Plate B-2 are in North American Vertical Datum 1988 (NAVD88). The conversion factor from MLW to NAVD88 is -3.3 feet.

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