RDLP_Dorado_GDR.pdf

SECTION 00 31 32

Geotechnical Data Report for

Channel Widening and Scour Protection Dorado Bridge, Puerto Rico

Prepared by

Geotechnical Branch

Engineering Division

Jacksonville District Corps of Engineers

16 March 2016

Table of Contents

1.1 SCOPE

1.2 CHARACTER OF MATERIALS

1.2.1 Regional Geology

1.2.2 Local Geology

1.2.3 Materials Encountered

1.2.3.1 Dorado Bridge Abutment Areas

1.2.3.2 West Levee Area

1.2.3.3 Proposed Channel

1.2.3.4 Disposal Area 1

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 Summary of Additional Laboratory Testing Data

1.4.4 Boring Log Notes

1.4.5 Recovered Materials

1.4.6 Boring Logs

1.4.7 Laboratory Testing Data

1.4.8 Sponsor Supplied Data

List of Tables

Table 1. Available Boring Data Table 2 Available historical field investigations from PR Highway & Transportation Authority Table 3. Available Probing Data Table 4. Available Test Pit Data Table 4: Index Testing Available for this Project Table 5. Available Unit Weights of Unconsolidated Sediments Table 6. Available Unconfined Compressive Strength Test Results of Unconsolidated Sediments Table 7. Available Unconfined Compressive Strength Test Results of Rock

List of Plates

Plate 1. Vicinity and Project Location Map Plate 2. Location of Field Investigations: Borings Plate 3. Location of Field Investigations: Test Pits Plate 4. Location of Field Investigations: Probes Plate 5. Location of Sponsor-provided Field Investigations

Channel Widening and Scour Protection Dorado, PR

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1.1 SCOPE

The information provided in this section encompasses the geotechnical field investigations available for this project. The investigations consist of borings and test pits. The associated boring logs and laboratory data are presented in paragraphs 1.4.5 and 1.4.6, respectively. Sponsor-provided boring logs are presented in paragraph

1.4.7. 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 Regional Geology

The geology of the Dorado area consists of both Quaternary unconsolidated sediments and Tertiary limestone, chalk, and siltstone.

The carbonates and siltstone are mostly in the southern part of the Dorado municipality, in Espinosa, Maguayo, and Río Lajas Wards.

Discussion of the following geology is from the youngest to oldest units.

The surficial deposits of the region consists of Quaternary alluvium, beach deposits, landslide deposits, swamp deposits and blanket sand deposits that partially overlay the Aguada Limestone. The Lower Miocene Aguada Limestone consists of hard, granular calcarenite overlain by alternating beds of chalky marl and rubbly limestone with a maximum estimated thickness of 492 feet. The unit is exposed from San Juan to Aguadilla and Utuado. The Lower Miocene Aymamón Limestone underlies the Aguada Limestone and is a dense limestone and chalk with a maximum estimated thickness of 656 feet. It is best exposed along the north coast of Puerto Rico from Vega Alta to west at Aguadilla.

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The early Paleocene Carreras Siltstone is a tuffaceous siltstone with minor volcanic sandstone, and tuff, limestone, limestone breccia, and calcareous sandstone that underlies the Aymamón Limestone. Unit grades downward into arkosic conglomerate with a maximum estimated total thickness of 1,968 feet. The Carreras Siltstone overlays the Cibao Formation. The Lower Miocene-Upper Oligocene Cibao Formation has calcareous clay, marl, and chalky limestone.

The Cibao Formation is underlain by the Tertiary Guajataca Member, which consists of calcareous clay, chalky limestone, and marl with massive lenses of sand and gravel. Below the Gauajataca Member, the Quebrada Arenas Member occurs. It consists of dense limestone alternating with chalky limestone.

The Tertiary Rio Indio Limestone Member underlays the Quebrada Arenas Member. It consists of limestone lenses of marly clay or beds of chalky limestone. This unit grades into the Mucarbones Sand laterally.

1.2.2 Local Geology

The study area is located in an alluvial plain and playa system. This system was formed by a combination of deltaic and flood plain deposits as indicated by the deposits of silt, clay, gravel and sand.

1.2.3 Materials Encountered

1.2.3.1 Dorado Bridge Abutment Areas

Materials encountered are represented by borings CB-LPC-8, CB-LPC-8A, CB-RDLP15-4, CB-RDLP15-4A, CB-RDLP15-4B, CB-RDLP15-2, CB-RDLP15-2A, and

CB-RDLP15-2B.

Unconsolidated sediments encountered include gravels, sands, silt, and clays. Gravels encountered ranged from poorly graded to silty, to gravel-silt-sand mixtures (GP, GM, GP-GM). Sands encountered include coarse to fine sand-sized, poorly graded, silty, clayey, to sand-silt mixtures (SP, SM, SC, and SP-SM). Fine material encountered include soft to firm, low plasticity clay (CL), silt (ML), and high plasticity clay

(CH).

Limestone occurs interbedded with clay material. The limestone is an erosional surface that undulates, and has variable approximate thickness that range from one foot to several feet thick. The limestone encountered is porous and sparsely fossiliferous. It is hard, with some soft layers, slightly weathered, vuggy, with some cavities filled with clay.

1.2.3.2 West Levee Area

Materials encountered are represented by borings CB-LPW-16, CB-LPW-17, CB-LPW-4, CB-LPW-5, CB-LPW-6, CB-RDLP15-1, CB-RDLP15-3, CB-RLP-7, CB-

RLP-8, RLP-WR-1, and RLP-WR-2.

Unconsolidated sediments encountered include fill, gravels, sands, silts, and clays. Fill is characterized as cobble to gravel size limestone fragments, with some silt and few sand. Gravels encountered

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ranged from poorly graded to silty, to gravel-silt-sand mixtures (GP, GM, GP-GM). Sands encountered include coarse to fine sand-sized, poorly graded, silty, clayey, to sand-silt mixtures (SP, SM, SC, and SP-SM).

Fine material encountered include soft to firm, low plasticity clay (CL), silt (ML), high plasticity silt (MH), and high plasticity clay

(CH).

Limestone occurs interbedded with clay material. The limestone is an erosional surface that undulates, and has variable thickness. The limestone is porous and sparsely fossiliferous. It is hard, with some soft layers, slightly weathered, vuggy, with some cavities filled with clay.

1.2.3.3 Proposed Channel

Materials encountered are represented by borings CB-LCP-7A, CB-LPC-9, and CB-LPC-9A; and also represented by test pits RLP-TP7 through RLP- TP10, and RLP-TP19, and RLP-T20. Additionally, a cone penetrometer test (CPT) was also performed within the proposed channel; labeled CPT-RLP- 45.

Unconsolidated sediments encountered include gravels, sands, silt, and clays. Gravels encountered ranged from silty, to clayey gravels (GM, GC). Sands encountered include coarse to fine sand-sized, poorly graded, silty, clayey, to sand-silt-clay mixtures (SP, SM, and SC). Fine material encountered include high plasticity clay (CH). Fill material was also identified, and it is expected to occur at various locations of the proposed channel.

1.2.3.4 Disposal Area 1

Materials encountered are represented by borings CB-RLP-5, TP-RDLP15-1, and TP-RDLP15-2.

Unconsolidated materials encountered include fill, sand mixtures, silts, and clays. Fill material was not clearly identifiable in the test pits, but was clearly identified in boring CB-RLP-5.

Fill was described as silt (ML) with some gravel (limestone fragments, and its approximately three feet thick. Sand ranged in composition from poorly graded to slightly silty. Silt ranged from high plasticity to organic silt.

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.

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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.

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.

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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.

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.

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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 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

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

SPLITTING TENSILE STRENGTH ASTM D3967

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

ASTM D2664

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

ASTM D4767

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

ASTM D2850

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

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. Tables 1, 3, and 4, below, summarize the field investigations data set available for this project. The borings presented in Table 2 were supplied by the project sponsor and do not conform to Corps of Engineers standards. Prospective offerors are cautioned to use great care in the evaluation of these borings.

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Table 1. Available Boring Data

Designation State Plane, PR State Plane, NAD83* Project Location X Y

CB-LPW-4 716839 883179

West Levee

CB-LPW-5 716853 882747

CB-LPW-6 716520 881728

CB-LPW-16 716465 883850

CB-LPW-17 716828 882624

CB-RDLP15-1 716661 883294

CB-RDLP15-3 716702 882462

CB-RLP-11 716736 883342

RLP-WR-1 716727 876688

RLP-WR-2 717027 883254

CB-RDLP15-4 717063 882836

Dorado Br East

Abutment CB-RDLP15-4A 717067 882835

CB-RDLP15-4B 717059 882836

CB-RDLP15-2 716718 882991

Dorado Br West Abutment CB-RDLP15-2A 716720 882996

CB-RDLP15-2B 716716 882987

CB-RDLP16-1 716868 882410 Culvert A placement

CB-LPC-7 717125 883838

Proposed Channel

CB-LCP-7A 717139 883835

CB-LPC-8 717191 882674

CB-LPC-8A 717205 882671

CB-LPC-9 717045 881597

CB-LPC-9A 717060 881594

CB-RLP-8 715741 858712

CPT-RLP-45 717426 883492

RLP-45 717426 883492

* Coordinates presented correspond to the project coordinate system and datum

Table 2 Available historical field investigations from PR Highway & Transportation Authority

Designation State Plane, PR State

Plane, NAD83* Project Location X Y

VC-3 716740 883033

Dorado Bridge Pier P-1

VC-4 716742 883000

VC-5 716831 882997

Dorado Bridge Pier P-2

VC-6 716833 882964

VC-7 716923 882960

Dorado Bridge Pier P-3

VC-8 716925 882928

AC-17 717017 882891

Dorado Bridge Pier P-4

VC-9 717015 882924

AC-18 717109 882855

Dorado Bridge Pier P-5

AC-28 717107 882888

AC-19 717200 882821

Dorado Bridge Pier P-6

AC-27 717198 882852

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State Plane, PR State

Plane, NAD83* Project Location X Y

AC-20 717292 882783

Dorado Bridge Pier P-7

AC-26 717290 882816

AC-21 717384 882747

Dorado Bridge Pier P-8

AC-25 717382 882780

AC-22 717476 882710

Dorado Bridge Pier P-9

AC-24 717475 882743

VC-1 716666 883062

Dorado Bridge West Abutment

VC-2 716667 883029

* Coordinates presented correspond to the project coordinate system and datum

Table 3. Available Probing Data

State Plane, FL-

East, NAD83 Bottom of channel

El. (ft.)

Refusal Depth (ft.

bgs)

Project Location X Y

CP-RLP16-X-1 716782 883329 -10.60 2.17

Culvert X placement location

CP-RLP16-X-2 716832 883334 -12.10 2.33

CP-RLP16-X-3 716881 883339 -11.10 1.33

CP-RLP16-X-4 716931 883344 -8.82 1.50

CP-RLP16-X-5 716981 883349 -10.72 7.00

CP-RLP16-A-6 716778 882456 -7.70 3.08

Culvert A placement location

CP-RLP16-A-7 716828 882455 -6.22 1.25

CP-RLP16-A-8 716878 882455 -9.12 2.00

CP-RLP16-A-9 716928 882455 -10.72 1.50

CP-RLP16-A-10 716978 882455 -10.47 1.00

CP-RLP16-A-11 716778 882406 -7.50 2.08

CP-RLP16-A-12 716828 882405 -7.77 1.25

CP-RLP16-A-13 716928 882405 -10.82 1.00

CP-RLP16-A-14 716978 882405 -11.75 1.83

CP-RLP16-A-15 716778 882356 -6.27 2.00

CP-RLP16-A-16 716828 882355 -5.521 1.50

CP-RLP16-A-17 716878 882355 -6.09 1.67

CP-RLP16-A-18 716928 882355 -9.82 1.25

CP-RLP16-A-19 716978 882355 -11.20 4.33

datum; bgs= below ground surface

Table 4. Available Test Pit Data

State Plane, PR State Plane, NAD83*

Project Location X Y

TP-RDLP15-1* 718990 886330

Disposal Area 1

TP-RDLP15-2* 719001 884987

RLP-TP7 717159 883983

Proposed Channel

RLP-TP8 717176 883611

RLP-TP9 717197 883151

RLP-TP10 717229 882447

RLP-TP19 717152 884110

RLP-TP20 717181 883455

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Designation State Plane, PR State Plane, NAD83* Project Location X Y datum

Slug tests for determination of hydraulic conductivity were obtained for this data set. For testing results, see paragraph 1.4.6.

1.4.2 Summary of Index Testing Data

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

Table 5: Index Testing Available for this Project

Boring Designation

Sample Designation USCS LL PL PI wn

Material Passing No. 200 sieve

Gs

CB-LPW-4 1 50

CB-LPW-4 2 GC

CB-LPW-4 4 GP

CB-LPW-4 11 GC

CB-LPW-4 13 SC

CB-LPW-4 17 SM

CB-LPW-4 22 LMST 30

CB-LPW-4 27 16

CB-LPW-5 3 SC

CB-LPW-5 9 LMST

CB-LPW-5 18 LMST

CB-LPW-5 21 19

CB-LPW-5 25 LMST

CB-LPW-6 13 CH

CB-LPW-16 3 SP 15

CB-LPW-17 18 GM 50

CB-LPW-17 25 GM 23

CB-RDLP15-1 5 ML 37 34 3 56.2

CB-RDLP15-1 6 ML 40 38 2 138.9

CB-RDLP15-1 7 SC 98.5

CB-RDLP15-1 9 ML 46 45 1 99.2

CB-RDLP15-1 11 ML 74 70 4 99.2

CB-RDLP15-1 13, 14, 15 SM 53.4

CB-RDLP15-3 2 ML 44 39 5 54.6

CB-RDLP15-3 3 ML 42 40 2 49

CB-RDLP15-3 4, 5 SC 64.7

CB-RDLP15-3 6, 7 SM 130.1

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Sample Designation USCS LL PL PI wn

Material Passing No. 200 sieve

Gs

CB-RDLP15-3 8 GP 48.6

CB-RDLP15-3 14/15 SM 48.8

CB-RDLP15-3 20 MH 70 54 16 68.9

CB-RDLP15-3 21 MH 82 58 24 86.8

RLP-WR-1 12.0-13.5' MH 55 30 25 99

RLP-WR-1 24.0-25.5' SC-

SM

29 22 7 16

RLP-WR-1 31.5-33.0' MH 81 39 42 97

RLP-WR-1 36.0-37.5' CH 56 28 28 53

RLP-WR-2 6.0-7.5' CL 43 21 22 84

RLP-WR-2 22.5-24.0' SC 37 24 13 33

RLP-WR-2 34.5-36.0' MH 57 35 22 75

RLP-WR-2 39.0-40.5' GW-

GC 34 20 14 6

CB-LPC-8 15 CL

CB-LPC-8 22 GC

CB-LPC-8 29 LMST

CB-LPC-8 36 LMST

CB-LPC-8 43 LMST

CB-LPC-8 50 LMST

CB-LPC-8 54 LMST

CB-RDLP15-4 7, 8, 9, 10 MH 111.5

CB-RDLP15-4 11 MH 81 49 32 42.6

CB-RDLP15-4 15 MH 60 38 22 67.5

CB-RDLP15-4 17 MH 56 40 16 66.8

CB-RDLP15-4 20, 21, 22,

23 SC 48.7

CB-RDLP15-4 21 SC 36 35 1 25.4

CB-RDLP15-2 11 ML 58 52 6 202.6

CB-RDLP15-2 13 ML 54 48 6 83.8

CB-RDLP15-2 17 SC 27.6

CB-RDLP15-2 21 SC 47 37 10 56.5

CB-RDLP15-2 25 ML 45 34 11 30.4

CB-RLP16-1 9 GC 110 35 75 44.6 40.1

CB-RLP16-1 12 GP-

GM

NV NP NP 15.7 5.0

CB-RLP16-1 13 GP-

GC

49 16 33 40.2 11.4

CB-RLP16-1 19 GC 120 38 82 49.9 42.7

CB-RLP16-1 20 GC 74 20 54 39.9 13.5

CB-RLP-11 8 GM 39.9 26.9 2.72

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-12

Sample Designation USCS LL PL PI wn

Material Passing No. 200 sieve

Gs

CB-RLP-11 22

SP-

SM

21.1 5.3 2.7

CB-RLP-11 30

SP-

SM

17.6 7.7 2.64

CB-RLP-11 38 SP 22.8 1.5 2.69

CB-RLP-11 44 GP-

GM

14.7 9.4 2.71

CB-LCP-7A 1 CL 41 22 19 18.5 2.78

CB-LPC-9 5 CL

CB-LPC-9 12 SM

CB-LPC-9 19 SM

TP-RDLP-1 1 ML 46 32 14 30

TP-RDLP-1 1A SM 46 29 17

TP-RDLP-2 1 MH 61 32 29 48.7

TP-RDLP-2 1A MH 54 32 22

RLP-TP7 7' GM 52 36 16 47

RLP-TP7 9' MH 69 49 20 89

RLP-TP7 13' SM 40 28 12 45

RLP-TP8 5' CL 49 25 24 78

RLP-TP8 7' MH 56 36 20 86

RLP-TP8 13' CH 74 33 41 88

RLP-TP9 4' SM 39

RLP-TP9 8' MH 51 35 16 92

RLP-TP9 11' CH 58 29 29 75

RLP-TP10 7' MH 50 37 13

RLP-TP19 0-2' CL 45 25 20 91

RLP-TP19 2-5' CH 51 20 31 95

RLP-TP19 7-11' CH 62 21 41 90

RLP-TP19 13-15' MH 57 30 27 70

RLP-TP20 9.5-12' CH 64 21 43 89

RLP-TP20 13-15' SC 40 23 17 50

CB-RLP-8 8 CL 43.3 18.6 24.7 52.7

CB-RLP-8 12 SC 34.6 19.3 15.3 16.9

CB-RLP-8 16 SC 35 20 15 18.7

CB-RLP-8 28 SC 49.8 23.7 26.1 27.8

CB-RLP-8 38 SW-

SC

34.5 13.9 20.6 10

USCS: Unified Soil Classification System; LL: liquid limit; PL: plastic limit; PI: Plastic Index; Org %: Organic Content; wn: moisture content.

W912EP-14-0002 00-31-32-13

1.4.3 Summary of Additional Laboratory Testing Data

Unit weights of unconsolidated sediments were obtained for this data set. Testing results are summarized in the table below. Test data sheets are included in paragraph 1.4.7.

Table 6. Available Unit Weights of Unconsolidated Sediments

Boring Number Sample

Designation

Wet Unit Weight (pcf)

CB-RDLP15-1

9 115.6 11 113.3

CB-RDLP15-2

17 128.9 21 127.3

CB-RDLP15-3

10 120.2 21 112.7

CB-RDLP15-4

11 112.6 21 136.3

Constant head recharge and slug testing was obtained for this data set. For testing results, see paragraph 1.4.7.

Unconfined compressive strength for soil were obtained for this data set. Testing results are summarized in the table below. Test data sheets are included in paragraph 1.4.7

Table 7. Available Unconfined Compressive Strength Test Results of Unconsolidated Sediments

Boring Number Sample Depth

UC

Compressive Strength (psi)

CB-RDLP15-2A

16.50 ft. 26.00

30.60 ft. 4.42

CB-RDLP15-2B 36.70 ft. 10.10

CB-RDLP15-4A

10.20 ft. 21.10

16.30 ft. 10.30

CB-RDLP15-4B 25.65 ft. 14.50

Unconfined compressive strength for rock were obtained for this data set. Testing results are summarized in the table below. Test data sheets are included in paragraph 1.4.7

Table 8. Available Unconfined Compressive Strength Test Results of Rock

Boring Number

UC

Compressive Strength (psi)

CB-RDLP15-2 2470.5

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-14

1.4.4 Boring Log Notes

All Borings were driven using the Standard Penetration Test (SPT) procedure with a 140 pound hammer with a 30-inch drop using a 2.0 foot split spoon (1 3/8-inch I.D. and 2-inch O.D.). Borings were advanced in 18-inch intervals, or until refusal was encountered. Refusal is defined as a total of 50 blows of the hammer within any 6-inch increment, a total of 100 blows within any 1-foot increment, or no observed advance of the sampler after 10 successive blows of the hammer. When refusal was encountered, the borings were continued with HQ wireline core barrel until the rate of penetration indicated softer material, at which point the SPT procedure was resumed.

Test pits TP-RDLP15-1 and TP-RDLP15-2 were excavated using a backhoe.

1.4.5 Recovered Materials

The material recovered from the borings is not available.

W912EP-14-0002 00-31-32-15

Plate 1. Vicinity and Project Location Map

W912EP-14-0002 00-31-32-16

Plate 2. Location of Field Investigations: Borings.

W912EP-14-0002 00-31-32-17

Plate 3. Location of Field Investigations: Test Pits.

W912EP-14-0002 00-31-32-18

Plate 4. Location of Field Investigations: Probes.

W912EP-14-0002 00-31-32-19

Plate 5. Location of Sponsor-provided Field Investigations

W912EP-14-0002 00-31-32-20

1.4.6 Boring Logs

Applicable boring logs are presented on the following pages. Boring logs provided by the sponsor are presented in paragraph 1.4.7.

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.

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-21

llole llo. Cb - LP l'i-4 DRILLlltG LOG lo.~-·~'°:":' ,\TLAt1r1c ;;:,.;-;,:-;,-:: .. :r .. T._"lx:i,"•o~"=----------..;.;.;;...;..;.;.;_,l'"u' 1

· · · - ~t .. .::'.SONV ILLE DISTRICT o' ·1 IHU:TS

'· 1'110.lllC:T 10, ''"AND T•~ 0, ••T SEE REMARKS I. t!c:~~~.d.L~~ ~ ,-, .. -,·-...,------------1'Tr.PTilllTillf"lttvxT10A IAOIN f • __ ., _.., MSL

X= 50'1,SJ7.7<. : .. 7,7.:•J.1)4 ir.lii.iiiiHcHi~iii'T'DliioiillloMOf1>11"11.-.-.. -------t

CME-45

1 ~_,.,.,.,...,,..,,,....~ • ....,----G~E~O-C..,...0,..N~S~UrL-T _________ -i~~~' ovv;:----liiiiT'UiOiio

t. OlllLLINO ACIKMC: Y

4. HOLl NO. fA• .,. .. .,. ••'""• ,,..., eunDlN tAM,.\.tiTA"IN I 27

• .,. ,.,._..., CB,-LEW-4 ----- ·--

f UND••tu-.e•o s.iiAico;r;;;i1.u" _,._,_o_,_":-~~~"-'-"-c_on_,_•~~~'~'------------t ti fLfVATION GlltOUMO WAT!-.:

t • ?·.:.bles 7 .83 ft.

•. Dt .. C.CTIOH 0, MOL~ llTAlllT&D f cow.r\.•T•D awc"TIC:At.. D•NCl.tN&D ______ ...... ,. ..... ,. •• ,_ .. _·_ _"_T_'_"_

_ .. _E __ -l"'-=J~-..:2:.::6:.-... 9:.l:... __ _.i_...3::.-... 2=.6~-..:Q'.._'_--I

1-------------------------i.~·'~·~l~L~lt~v~A-·~·~o_M_T~O~l'---o_,_H_O_L~E~----=-l~.~1~7 ___ ~f::..::t~.:.._---I .. ·-·-'-"-'_c_ic_H_1t_n_

0_v_t:_ .. '-' e_u_ .. _0_'-"-------------i ,, 'OT •L COIOl "ltCOVlt"T 'o" 10 .. IHO :; ' ' ,•._._0_1t_P_'_"_o_"_''"-'"-•_0_1"_'_·0~"-o_c_~ _______________ _,it.'liQ~AiUq(Op;;iPi~c-,-o~.,.:...:.~;....;.;.;.;:; ______ ,,_. __ ~1 i.:':.:.·..:T;.;o;.,T;.."..:L~o.;.•.:..P..:.•:..:"~o;.;•...;;"..:.o..;;L..;;E_-r....:4..:9~.:...:5:.... __ ..:f:..:e:.=e..:t:.... ___ ...... __ _:.;K,.:e;..r:.m=i:.t::, Sch m id t . PE

:[':.n.,"v~ rr:P't.'l ...... , .. ~.

ELRYATICIH DIE .. TH LROl!NO CLASll~ICATIOH 0, •ATUUAU fD•au•l-.I

7.83' ~ 17o. 0:::

.:_ .1-1

-2.67'

-5.67'

-ll.6i'

-13.17'

:V loii / ~r-/ :V..,.

13~V, 1-<ATER

CLAY, very soft, gray and dark gray, slightly.organic, sare sana, little silt, occasional pebbles (CH) GP.AVEL, fine grained, gray, suo-an-~ular, sandy, medium to coarse grained, some clay, little silt (GC) clayey

GRAVEL, fine grained, sub-=· • angular to sub-rounded, gray, sane sand, medium to coarse

- • grained, little silt (GP) - . ---- .. ---

!R'f HO.

• I

28 1

11 2

5 3

11 4

11 5

5 6

33 7

26 0

=1 I i i f01U1lnf , ........... , .......... ,,. •• .... lhir,.,... ., .. , ,, .,,,.,,,.anu

BIT OR Bl\P.REL

7 WP

-1 1-• Ille/"" -

14U" hamner w1-th 30" liJ:L _ drop on 1-3/8 ID x lli ,_ 2" OD Std. Split Spoo'\JH =

-4 J 7 I

-5.67'

-7.17'

-8.67'

-10.17'

-11.67'

-13.li'' ill!. -ill!..~

WH -

k!!:I.._

WH --

WH :

WH --

WH -

!:ili..._

WH ~

1 >-_ ,__

1 --- 1 - 4 ,_ --..§._ - 8 :

10 ---'. -

6 -

L,_ _____ _i. __ .....11.....---..1...-----------------;PAOJ[CT EHG FORM 1836 P11tv1cvucmoH u11011ouu. La Plata River

I H0\.-1 NO.

CB LPW-4

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-22

DRILLING LOG I Cont Sheel}llL!VAllON to, or HOU

-l. :- feet Hole No. CB-LP\\-4 PIOllCT

La Plata River l .. SIAIU.llOH

JACKSONVILLE DISTRICT 1

111111 2 Of 3 IHllll

ILIVAllOH Dl"H LIOIHD C\AUlllCllllOH OI MARii.AU

(DIH"I'""'

11 COii IOI O• aicov. '""'\I llMA.10

(Orilt1,.c ,..,..,, .,.,., I•••· ,,,,, ., .. ,.,j,,.,,,,, '''·· ,, .,,,.;~,.,.,,

• b c d ltr HO.

• r I -

- BlT OR BARREL

-13 17 1 21.Q: -13.17' Bls/6" :

-16.17'

-v~LAY, medium, sandy, brown, 1401 hammer with 3 '-gravel, fine to medium gral.ned, 100 9 30" drop on 1-3/8" 3 sub-angular, littie silt, ID x 2" OD Std. -..... _

--;:vl::>ccasional yellow rrottled Split Spoon. t; -

- . (CL) 5 ,_

- 100 10 6':

24.0.: / -16.17' 4-::--1y GRAVEL, fine to medium 9 :

- c_rai.ned, sub-an.-:::.~ilar, clav_, 100 11 -1? -· ~v :~:r~r-;~ ~c~s101<~~1 ~,.i~~,. 1---1--_j~-..::l.;.7..;. • .;;.6,;..,_. -------[:;.~:;.· ... =

- / 100 12 17 -

27.0~ ~/•. -19.17' i6: -19.17' _v SAND, coarse grained, brown 4 :_ -1/ and gray, gravel, fine grained 33 13 lo:

' sub-angular to sub-rounded, - - 23.SL clayey, sane silt (SC) -20.6"'' 13 --20.61' -[% GRAVEL, fine to coarse grained £.:

- sub-angular, brown and gray, -; 14 10 - : clay, sandy, scne silt, - -

30.Q.!.. 4ll yellow rrottled (GC) -22.17' 11 --22.17' -Lr1 LIMESTONE, hard, highly decan- 12 -

- posed, fine to coarse gravel 51; 15 IT:

- size, white and pale yellow, -~ clayey, little sand and sl.lt -23.67' 16 -g:

100 16· 8 -

-25.17' 33.0L I -25.17' lo:

-28.17'

-32.67'

-37.17•

SAND, medium to coarse grained brown, sane silt, 11ttle clay, occasional gravel, fine grained, sub-angular (SM) gravelly, fine to medium

- • g+ained, scne silt

36.oi:. •

=v' ~v ~v

40.~I/

Cl..llY, stiff, brown, sane limestone, decCXTiposed, fine to coarse gravel size, white, little sand and silt (CH)

- I LIMESTONE, hard, bighly -...--.--decanposed, fine to coarse

:....,._......,.1 gravel size, white, sane clay,

- I brown, little sand and silt _... ...... _

-LJ : . I

- I I

- I

67 17 -26.67'

56 18

-28.17'

67 19 -29.67'

56 20

8 - 10 ---16 ~

10 ---12 -

TI :

10 -ls::::---10 - 15 ---16 -rr~ -31.17'

1-~--1-~~-1-~~~~~~~~~~.!,__~4~:

44 21

-32.67'

67 22

-34.17'

14 ---18 - 19 :

26~ --22 -

1---4--__;~-~--..,..--~-~- 12 -

28 23

33 24

-37.17'

--14 - 46 ---44 ---21 - 37 -

TI' :

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-23

DRILLING LOG (Cont Sh11t)j""'•'C" lCP OI •:.J -1 17 feet Hole No. CB-LP\-,-4

-llCT , .......... _ I'"'" 3 La Plata River JACKSONVILLE DISTRICT Of l 1141111 tL.t.ISlllt.lTIOH OP MAQILAU ~. COii IOI 01 llMAUI ILIVAllON Ol'IH llCINll f Vou.,u .. J ucov. UM,LI (D"ll'"I '''-'· ,...,,, l•u. tJ,,, • ., llf NO. ..,,.,,,"·•· '''·· ".,,,.;~, .. ,, I b c d I f •

- -- -- -- BIT OR BARREL -- -- -- . -- -

-38.67' 46.5.!. -38.67' Bls/6" -

-~ / GP.AVE!..., fine to medium 140t hammer with 30 -

- -;;-, cne:::, sub-anaul ar, bro· ... n, 56 26 30" drop on 1-3/8" ? : - sand, ~ie01~" ~o-coarse 10 x 2" 00 Std. 1..::. -

-40.17' 48.~ grained, clayey, sane silt Split Spoon. 36 '-

-,/ (GC) 28 ,_

- 27 30 -- '-- r/ 37 --41.67 49.5L -41.67' -- f.ND 49'6" ------ -· - --- -- - -- rnn:s: -- _,_ - --- l. Soil classifications abov -- -~ ....... J. ,'-J.Ow~••.i.<...01.J.UI•~ - using the Unified Soil Cl 11ssifi ~at ion Sys ten. - i-- l..· - --- After visual class1fi at ion r:formecl -- -. t.he was oo - Atterberg Limits and Wate cert mts w. re obtained -- -'--- fran sane of the samples 11nd .~ resu ts and i-final uses classification tar. --- .. prece: ence over '"-- visual classification. -- ._

- -- Groundv;ater: elevaticn "'-as e9 du1 ing drilling. '-- .;. measu -- -- -- -- ,_

- -- -- -- . -- -- --- -- -- -- -- -- -- -- -- -- -- -- -- -- --- -- -- CB-LPW-4 l w = 50% -- '-- -- -- -- -- 8 w = 19% -- -- -- -- LL = 47% w = 17% -- -- 9 PL = 22% - PI = 25% (CL) -- -- ---- 15 w = 19% -- -- -

1 I

22 w = 30% -- -- I LL = 69% w = 25% -

26% -

25 PL = -

I 43·!; (CH) -I PI = -....,

I w = 16\ - 27 ----

I I ~ I I . I I -

I rtOllC't I"° ..... o.

ENG FORM 1 A1A-A r£R l I lO l·UQIJ 0-0 111~ O' .. 11'- '~t La Plata River CB-LPw-4

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-24

Hele He.

DRILLIHG LOG SOUTH ATLANTlC JACKSONVILLE DISTRICT I, llCl.llCT

La Plata River L L.OC TIOM fC__.._ .... et•••'-"

1 _..:.X:..=__.~0~5;;t,52::,,:,.:. l...__..;.Y_=__,2:.:2:.o7..c.::2-.9.:.4~. 3:.:2:.------l u. •••11,.•c S. Ollll.l.IMO MllMCT

J__,_.,,..,...,,.....,.,.--,---G-'E;;..O_..;.C.,..o_~_•s....,..u..,L_T ________ --l 11- 'OUL 110. or OVU•· '

IOM OF OlllLI.

CU- LI' -

IHlltT }

O' 3 IMHU

4. MOLi MO.'"• .,_m11 ... •• ..... HU• eu1111DIM IAMttL.11TA"l•1·

- "'• --' ! CB- LPw-5 1----------:....-..:;.;.. __ _;~-----4

•·,-.-"-.. -.~,-o-,-o-.·,-L-L""f""ll _____ ...... ____ _;;.. ____ -i •• TOTAL 11u11•c11 COlll •out

P. Robles •• •. OllllCTIOM or MOLi!

•• DA11. Mot.a t?!:J •a•ttC •~ CJt ... C~t ... CD ----- Oee. ••OM V&• f, l--------.&....o~!l.¥.""""'*---_.-=A¥-".&....,...,-f

~,-.-,-M-IC-K-.-,-,-,-o-,-o-v_f_ll_•_U_ll_D_f_N _______________ --l_17_·~C~L~C~v-•_•~·0~·-·-0~"'-...:.0_'_"_0~L~·~---~l~-~0~4~_..,:.f~t~·~----t

-------------i'• "Of AL COJllll 9'IC0>/19'Y ro111 IOA.a.; ' •. 01 .. TM OlllLLIO INTO llOCK ii'.liGiiA"Tu"i~i-"'c""'~o;.11.:;_..;;.;~.;..:..--------_..;.1

,,,ou1.ov,MorMoL1 ~ feet r.~rinit Schmidt, PE

11.IVATION 01"'1" LlGl.110

11. 96'

-1.04'

-2.54'

-4.04'

-B.54

CLAU.,ICATION or MATUll&LS 10 .. .,., ..

WATER

CLAY, very soft, organic, very dark gray, s<;rne gravel, medil.IT\ grainea, little sand and silt (OH) SAND, medi1111 to ooa.rse arained, brown and gray, clayey, sane t,jrave-.:, 1.:.1._ grained, sub-angular (SC)

'COlll •o• Oii lllCOV• IAM .. LI '"' 110, I

NR l

22 . 2

39 3

39 4

"lllOJl.CT tOtlll""I ,._.,. .,..., ,_. .. , .. ,.,,. el - .......... ,,

11. 96'

-1.04' Bls/6"

-4.04'

-5.54'

-7;04'

MO~I MO.

La Plata R:ver

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-25

OIUUING LOG (C I Sh •l'IL{>All()H ICI Of llC•I on " 11 -l.u4 !eet Hole No. -"" , ...... , ... ,.,..

La Plata River JACKSONVILLE DISTRICT

C8-LPW-5

I"" Of 3 ..611 ILIYAllOH Dl"H LIOIHD "AHlllCAllCI" 01 -111\All tPM•••-1 \·. COlt 1-,1 OJ IH OY· IA•"lf t011ll•<t• ......... ,., ,., •. "'''' "'

• ~ c ' ,., .. o.

I I ...... ,. .. ,,,,,.I/ .... ~, •• ,, BIT OR BARREL

-8._54' - :20.5~

--~ .... -. _ _ _____ -1---+--+-:-~-~a.,.. .5~4,_' __ ..;B;;.;l;;.;s;;.:l...;6;.." __ -t_-

-9.54'

-13.04'

- I I

- I : 1 I --I : I I

- l

- I I

- I

CLAY, stiff, red and brown, sane sand and gravel, fine to '."ledium ora\'el, sub-an-,ubr to sub-row1ded, little silt, gray roottled (Oil

Ll1'\l::S10NE, hard, White, highly decanp:>sed, f me to medit.::n 26 oravel size, clayey, sane 6'4nd aod silt ll

140 I hammer with .J_ - 30" drop on 1-3/8"

1Dx2"0DStd. --...._ Sclit Spoon. 6 ll..:

-ll.>4' 4 :

-1 ~ c;4 I

-14.54'

-16.04'

..l. :

4 -ll...:

!L:

14 :

!2. -li..~ 2R -

... -_;l:..;,7.:..• 5:..4:...'+2:.:9..:_•:,_ ~-'_.µ11..,-....Ll+:::-:-:-:~---:-:-:'':"""""-;--:'"-:---t---t--r---l,7 o c;4 I -V C'IAY, 1very stifft.red & brown, sane lJTieStone, ine to coarse

a. :

i.Q_:

70 -

UL:

1.Q... -

-19.04' / oravel size, White little sand 33

31. G": .ind Sll t (Qi)

- I I LI..MES'It:X'lE, hard, White, highly -'-...._I_... deccxnpose-::, fine to medium

- gra·:el size, clayey, sane

- I I sand and silt 4.i--'-1

- I

-I I 26

- I

- I I

- I 28

-19.04'

-20.54'

-22.04'

10 :

!i.. :

!.2- - 17 :

.L - .L: , -

-23.54' 35.5'- I I -23.54'

J_ - ..L :

7 -

-25.54'

-29.54'

-31.04'

37.::/

- I I

- I

- I I

- I : I I

- I

41.5~~

- I

43.0 ... I I

: r1-r :?-r

- I

Cl.A¥, soft, limestone, highly deccxnposed, fine to medium gravel size, sane sand and silt, brown and gray (CL)

UMES"l'QIE, hard, high! y dea::rtp:>Sed, yellow. fine to coarse gravel size, sane sand and silt very clayey

44 16 u_:

7 ----25.04 A L--.l.---.+-..:.:.:.:...;_ ________ ~;- L:

39 17 JL-

-26.54' ll -l----1--~...;;;.;.;..;;_ ______ ~~,-lL:

lL,_ 33 18

-28.04' 22 - L---.+---+,.;;.;.;.;~----------'.~

.\L - 33 19

56 20

-29.54' u....:

It. -li... -lL:

-31.04' lh 1----1--~..:..:.:----------~,lL -l.J -32. 54. 17 -

I---+---+-------~----~;-

56 21

--, ... :.J4 • .Q..;' ,.56:.,Q~ I J ________ _ -34.u4' 30 - -1---+---4~~--~-----=-,: ---

I~ _J_l-J..3--"-l-~--------~'-"~"~~'~'--------~l"~~NO~-lHG f~llM 113b-A 11/l lr'IO·l·JIOll ... .............. La flata River CB-LPW-5

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-26

'heel )I: llr''IAllON 10' Of HOLi DRILLING LOG (Cont " ,1 -1.04 • feet Hole No. CS-LF'.'i-5 l'llOllC1 llHllAIU.llON

La Plata ~iver JACKSONVILLE DISTRICT llHln Of 3 .Jm

ILlVAflOH 01'1H UGIHO

I b C

-34.04 46.oi: ----=r 1 I I

- I I

- I

- I I

- I :lJ_J_

=u_ -o

- I

-LLJ

- I

-41.54 I 53.5'- f I

CLASSlllC.AllOH or MAnlL.UJ d

~. COll IOI 01 ucov. '"'"''ll llY MO.

• r llMAUS (Dr.Jl1•1 ~'"''· ., .• ,,, l•o, J,,,, e{

.,,.,.frt•f• di., if ''l"ift'••IJ

BIT OR BARREL

_ _ _ _ ___ l---+--+:--F::34,:.,:•;.;;0~6-' --l.•_.=B.:.l.:.s:....l.:.6_" __ t---l 40 t hammer with 10 >- 30" drop on 1-3/8" ...;;;.;;.. : 33 23 ID x 2" OD Std. lQ. - Split Spoon.· 12 -

39 24 -37.04'

-Jil.54'

56 26 -40.04'

39 27

-41. 54 '.

END 53'6"

10 --- .ll. =- 14 :

ll..:

""C. -.;:..::_

23 :

il.i:

.u..::

14 - 24 -....... ..._

11.:::

4fi ..._

-~-+---J.----------1-

NOI'ES:

l. Soil classifications abo\'I'! are ·isual classifications using the Unified Soil Cl~ssifi ation System.

2. After the visual class1f irat1on was p rtormee Atterberg Limits and Wate cont nts w· re obtained fran sane of the samples ~nd th resu ts and final uses classification takes prece ence over visual classification.

3. Groundwater elevation was measu ed du ing drilling.

CB-LPW-5 2

w = 108%

LL = 55%

PL = 25%

w = 21%

Pl = 30% (CH) i----- --~---------~--t-

LL = 71% W = 38%

PL = 28%

Pl = 43% {CH)

1---t----+----------------;:

14 w = 37%

1----+---~LL,,_=-4~8~%=----:w:-:----4747%~--t:

16 PL = 27~

Pl= 21% (CL) f..---t--~.+----------------;:

HOLf NO lNO FORM 1836-.. fiR lllN·Wll

NM 0

,..OJICl

La Pla':a P.iver CB-LPW-5

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-27

llole Uo \.. L" ·1 OIVfil°" IMlf AL.LA •10 ... li;;iir l DRILLIUG LOG SOUTH ATLANTIC JACKSONVILLE DISTRICT 0' 2 lttHH

'·""°'-1' It. Ill! IUID TT ... D' llT SEE REMARKS La Plata River Tl.-iJTI11iJJlltl ,..,.,,.y,.,., ""vwll 1 ••• •-lol • l, LOCA110N fC:-lrt••••., .11.,jOi\I MSL X= 560 21'.:. 52 Y= ~"" "7J qn ll.1iiiii;;icfiiiiimiiioiilTioil o' Df111.1.

a, DAii.i.iMO AO&NCT CME-45 .GEOCONSULT ~L";M'°jin. ~DllUl"UD I UNOllTU"••P

e. t40Ll .. o. f"'• ..,__, _. ........ tltl•J

CB-LPW-6 .,.,,,,,.~_, ~~~~~'"Lt TAUN l .1

~AiiiiOf"CiiiiLL.lA te TOT AL NU .. 9U• COftl 90•1:1 ----------- !i. G...,n;:,Hez II. lLl!VATtOM ClllllOUND WATE" 2.46 ft.

.. Dll•&CTION O• MOLIE tlTAIU&D lCOWPt.aTaO II. DATIE HOLi! 1-31-91 1-"-"' Dw•11••c•t. O•NCt.tN&O o••· P1to• wa••·

11. lLlVATION TOI' 0, NOLIE 12.46 ft.

'· THIC~NE.St or ovr: ... u .. ar.N TOT A.l. CO"E •rcovr. .. T ro1t 80fllltNO 90 ~ II

•• o~~TH ontLLEO IHTO lllllOCJ( i"f."iiiMAiU .. iOr.'Hiitietoft

•• TOTAL"~"'" or HOLi. ?l n feet Kermit Schmidt. PE Cl.A&ll .. CATION O' •ATUIAU 'con I

'"' 011 IOlllll\11111

IEl.&VA1'10H ll&l'Tll l.IEOIEllO ,., .. ., ... ..,, "lCOV• ..... ~ .. , fD:.:~-::,•,::- :::.',j, •:::,;,~::':.•I l"' 110.

• ~ • • . I • - >-

L--- >--BIT OR BARREL -- -- -- --

Bls/6" -l?. 46 o. o- 12.46 140~ hammer with 3~ c:

CLAY, medi\.IT\, brown and dark drog on 1-3/B ID - 56 l x .-1 ._

- grayish brown, sane silt, 2" D Std. Split ~-- little sand, occasional Spoon 4

- - pebbles (CH) __( = - 56 2 _!. --

9.46 {,

9.46 h ,,,-

'-- -2.. - little sand and silt, very 67 J _]_ ~ -

-- stiff, brown and gray 7.96 9 _, 7 QI'; 4.5'-

..2.. -- -- 78 4 ..2.. -- v stiff

- 6.46 " -- -

100 5 ..]_ ._

- >-- 4.96 7 ~ -- _i.

-v '-- 100 6 ..!. -- '-

- 3.46 5 I-

3.46 lo n-

\] - brown and dark gray 100 1.) .2... '--i.96 - 1.96 6 ._ h n c:,...

..§... l-- 100 B L -- yellawish brown and gray --v 0.46 7 --- .1... - 100 9 -- ..L

'-- -1.04 c. l-- -- .1... -- 100 10 ..L --- ._ - -2.54 4 -

1... '--

- 100 11 ..L '---

- -4.04 5 '-

-4.04 '"'~

- sane sand and silt, trace 100 12 .L -pebbles 7 '--

-5.54 -

.L ... -- 100 13 .L ---

-7 nA " -- -- ~ -- -- 10: i.; L -- / - occasional gravel, flne 9 -

-8.54 21.0i: grained -8.54 -- -END 21'0" -- -

I ~ I I HOI.~ NO. flJlllOJl.CT

EHG FORM M A,_I OISO~IU· B- -

MAR l1

18) 6 ~IUVIOUI IDITICI I La Plata River c LPW 6

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-28

DRILLING LOG (Cont Shoot) "'''"''°"' '0 ' °' "0

"' 12. 46 feet Holo No. CB-LPW -6 PIOllCI 9'fltA\LAllOM

La Plata River JACKSONVILLE DISTRICT lllVAflOH D.,IH LIOIHD CU.SllllCAllON 0' M.Ullu.1.$

'"""''',.. J d

'I. COU IOI Ol l(Cov. $AMPll

UY HO.

f llMAlll ( Dri/11111 1i•1 . .., .• ,,, l•u, "'''' -f .. ,.,, .. ,,.,, '''·· if"•··~",.''

BIT OR BARREL

-8.5L -8.54 Bls/6"

- - -1---1---1-~~----------41-

NOI'ES:

1. Soil classifications above are v sual using the Unified Soil Cla sific tion

L. Aft.er t.l'1e visual classlt1c Atterberg Limits and water fran sate of the samples final uses classification visual classification.

3. Groundwater elevation was

CB-LPW-6

I tlOll conte the

=is pe ts we resul reced dur l4

140# hammer with 30" drop on 1-3/8" ID x 2" OD Std, Split Spoon.

lassifications ystem.

torr.=.i.

e obtained s and nee over ng drilling.

LL = 55%

PL 22%

PI = 33%

LL = 75%

PL = 29%

PI 46%

LL 61%

PL 26%

PI 35%

w = 31%

(OI)

w = 35%

(OI)

w = 17%

(CH)

HO~I NO.

lNO FORM \ 836-A 1111 lllOol·UOll

NH ti a,o ttlO OP-tU-tcl I,, :>.t :i

La Plata River CB-Lp.1-6

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-29

llole Ito ~· . -L " ...

DRILLlttG LOG IO~v~~'.c;u ~T!.1·-.~1~·ro 1•M~T .. A-=-.~~'.:~~ .... , ~ ~ ... t:O'T'0""" .... l ~-H'i~ T l $11[ t '' ,....,===-------'-----~----------; 0 - - ' 'I A - ~· ~ - ... ~ • •

'· ~110J£cr 10. sozt ANO T•~ o• ••r SEE REMAHKS

I. ~:d; ~: ~:..: .. i.~;.: J-,.-·,-..v------------11r."lm1JlfTillf"ICtvX:~~: IRot., , , .. • -- X = 1 i 5 .J_~ s . o Y-= s ~ ; • : ~ o · J lr.iiiiHiHciiinin iiiiioii~i10.ron;;;1 ... l"'T"' ... -------

L OlllLLINO AG&NC• CME- 4 5 .,._.,..,,,....,,..=~~---G;..E;;_O..;C;..O.:;._tl_S,_U..,..L...;T _________ -l if.i[ji;;;:-;; ;::-; ~';;:--ID.itt;;; iii o I ""o' .,..,;;i;;- •· HOLE '40 , .... ..,..._ ........ .,,,., evnO(H IAWPLlt 'AlllleH 1 4

.,..,,, • .....,._, CB-LPW· l.6 -----··-- -------'------- .... ,.-...... .,..,.,,,&,,....,0.,,,..,0,,.11,,1,.,.L..,.L""r"'".-------..i...----------11•. lOf-.L HUlllDlllJ CO,.I •O•ll

---·----·---' ....... ~~~-r...:..:_,...:..:~~-,_"~·~!==-=---=-i'' !L!VATION c .. ~o"'u"'N'~o~.~A~T~l~ .. .;._-=-0-.-3-1=.=f=t-.--=-l.DUlll.CTIOJifOl'HOLf: l''""••D l,cow ..... &TID II. OATI t-40LP

D••"ncat. O•NcL.1Hao ==-==- o••· f'•o111 ••• '· ! ? • 2 .s .. 9 l I ~ O. 2 4 .. 9 1

•·,-.-,-H-,-c-~-N-E-,-,-o-,-O-V_[_A-.-... - .. -0-l_N_========-=-=~ "· fL!VATION TO" 0, HOLi l 0. l l ft.

1------------=========-==·-111 'O' "'" COfll! lltfCOV!fltT PO .. 80fUHO 7 a, a ' •_._o_,_,._,_M_o_n_•_c_c_•_o_•_"·-'_o_~_o_c_ft=--===--===---jil.'liQNA;U"i'O~i~i=c~T=o=A.;;.;;..;;.;,;,;,;;,;..;:;.._ ___ _..:..;t..o..i.._..,,.,._,;cl

I, TOYAL. OCPTH O' HOl.! feet ,:~rrn1 t Schmidt. PE

CLASlll'ICc~:~:-.:r.:•TIJUAU ~{",;0.,"v~ :r: .. ~'l fD1u1in. , ... :.1:.~::.~ .......... , t11t1' "o. .,...,.,,,... .,.,," .,.,.,,, •• ,.,, J---....:;•..,,.,.-.i-....:;~~~-=~·-._=======~'=-===--- =~·=---11--'-'--+--====~~·L-=-=-=--~

1 0 • l l '

~ , 1 '

? 11 I

5 , 8 ! I

0. 0 ... -v IC l AT S I L T , 1 I t t 1 e ' I o e

- sarid, oc:asional .. ::.t>.

- ,,e~ium,~ark brown

~v (CL) s t 1 ff

• r ; n e t :>

• 1 1 t t 1 e

- - . brown

~e~lu"' SANO, silt, very loose, I~ PI

-· 1·1·~ine to 'lledium SAND and --:: • S'ILT, little clay, loose

_ j j .. ,, ~".'ft, ~row,, 5 I •:i ·- t • • ( ~ .. \

·: ,ray mottleo

BIT OR BARREL

10.Jl' Blsll';". -l'!Uf nammer with 30z" -drop on 1-3/8 ID x~:

2" OD Std. Split ~~ Spoon 4 ::-

_s __ 5 -

..L.1- 1 1---1 '-

.1-. :::,_ 1 '-_._ 1 ._

J_ _

WH -·--

-vi:>ILTT CLAY, little fine sand, very soft, brown, 2 , 3 ) I 7 < '- ( c l ) =V IT r a c e f i n e s a n d •

1 -

: IS oft

.L:

l ---

1111· 11-v

'\J : pome fine sand l =- W H ._ -- 1 -

-o.~ io.""53 / 2 -

_ / :LAT, trace fine sand, L:

~ "/"' e d I um 1 gray , bro·· n "'o t t 1 e !_, ~

!2.(.'- (CH) l -. l. 5 9 -'./"' s I L T T CL AT , l I t t 1 e f i n e .,!__ _

_ /sand, soft, brown, 3ray .L.:-:

- mottled -t 3 .;::: (CH) z -• 1 I Q '

-6.19"

EHG FORM 18 3 6 Plll\llOUI lOlllOMI ""' 01101.lU·

MAR 71

IPAOJtCl

La Plata River '1101..ll ,..o, CB-LPtl-16

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-30

• _;;. r.1.ata River

NOTES:

: : • 3 l feet Hol• No. CB-LP w.

Mt•u.a•-

JACKSONVILLE DISTRICT

o..u1•1c:.e.r10H o• ..... n1u.u ,.,., .. ,..,_, % COii IOI 01 ucov. s.uou

UY HO.

r llMAlll (OriU;.1 ,,.,, ..,,,, J..1. *''• -f

•. ,., .. ,.,.,, '''·· ""••"•••ti

BIT OR BARREL

Bls/6"

- - - 1---1---1.,.-------...i..-----1-l 40 I hammer with 30" drop on 1-3/8" ID x 2" OD Std.

Split S oon.

1. Soll classifications abovt are visual class! !cations using tht.Unlfltd Soll Classification Systt111.

z. After the visual classification as per onned tterberg L 1111 ts and Wattr contents wtr't obt lned f SOft of tht u~lts and the r'tsults and final USS ells lflcatl n tlkts precedence over visual classification

3. Groundwattr' tlent ton was •nea r'td d ring r1111ng, z W • !9S

W • !SS

W • JSS

ll • 681 Pl • JOI

8 Pl • 381 w • 401

(CH)

MOii NO. PIOJIC1 La Plata River CB-LP\f • 136-A 11• 111

·""' o• , .. , ., • •H· "'

•': ... .. . ""' ..... --:~ ... -~) ~·----:--f· -~-·.

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-31

llole 140 - u-_·;;.' ;;...;.;..,._ DRILL114G LOG 10.~v_'.'~':".· .. : .. : ... -:....::. .. ·.·-.:: f'"'"'LL•llOM jiiiii:r- i"•

- - - - - - ..iMCKSvtr~11 ........... :..... : :: : .-.~-._·.:. I :;r • SHEETS

I. TOTAL Dl:PT HO' HOl..I feet PE CLll:YATIOH Dl,.TH 1.EGEHO

CLAUl~IC&TIOH o~ llATllJlllAU 'r.onc '""Ort .. u ....... 10 •• ., ..... ,..., "\'i.~Y• IA=:~· f0:!~':!tti~• .'::.'::,':r:~r.::-:..•I.

1----=•'---.,l--~~~-+--~·:._+--------~4=---------+-~·:...._,r--...:..'-+-------~·t....------:=---

7. 21'

4, 21'

I. 21'

0. 0 ...

1/ -s.:' -

CLAY SILT, ·;::'e fioe sar.:, •HY stiff, brown

(Cl)

SILTY CLAY, trace fine sand, st 1:,, brown

(Cl)

~ CLAT, trace [1ne sand, stiff, ~rown, (Ot)

-=v 1ray .. ot:le:

-0.29' 7 ,, :

r.------~-----~

~-v lery st Hf lV io.s_·=-V ~e:ium, ~ro~n1sh yellow, gray

"10tt1ed

-3.29'

::.tJ·=V

Little silt, stiff

9.29' Very stiff

:1.:·= /

Zl.O': / Stlff .13,79•

I I I EHG FORM 18 36 l'lllVIOUI IOITIONI Aflll OalO\.ITI• i ·.

eJ ~ .

fl!'!' rJP AARPEL

I-

7.21' .. Bls/6"· - 140• hammer with JO~' -drop 0n 1-3/8 ID x ~ - 2" OD Std. Split 5 - Spoon 10- = 4 .. 1 I ".

2 - ' ' " I

l. 21'

-o. z;'

-l. 79 I

-J. 2?'

•, 73 I

-6.29'

J.L = 13

14 -

..L- 6 -

4 -

...L.~

5. ---6 ._

..L - 8 -

8 -

_7_ = 1 ---1 -

2 - T::. --2 ._

L- 3 .._ -- 3 -

..L- 4 ---l-l1~n~n __ ... .....:.1~n-~~-~7~·~7~q-• __________ ~4-1~.:

l l~O

-10.19

-l 3' 79'

I

I l ~"OJlCT La Plata River

-5-: --

10 -

.l.- >-

9 -

10 - 4 ----..:.... - 6 -

IHOl.I. HO, CB-LP W-17

Channel Widening and Scour Protection

W912EP-14-0002 00-31-32-32

DRILLING LOG !Cont Sh••lli hl"HllCN IOI Cf HCLI

7.21 feet Hole No. CB-LP W-17

• ltOllCT · I IHSIALU.llOH I'""' 2 La Plata River JACKSONVILLE DISTRICT OI 3 IHlllS

Cl•U"1CAllON Of """llll•IS ~\ COii IOl CJ llM•lKI tUVAllOH Dl"H llOIHD <V""''"••J lrccv. ..... ,11 fD,,llittt ""''· ~.,,, ''"· ''''' •I (If NO. t1u''""'I• llt., I/ 111•1)1••1)

• b c d • r I -- -- --- 'BIT - OR BARREL

-13.73' 2!.~I - -13. 73. Bls/6" -r;; SILTY CLAY, sor.ie I ir.~ sa~:, :::isiona 140# hammer with 5 sari~ ; :ere t !, • ter t St if r, ~r":t."! • 30" drop on 1-3/8" ~ - ;ray !nd bla:< --ct~led ID x 2" OD Std. -· - (Cl) 15 Split 9 :........ 1~3 Spoon.

2 - .L: - lltt1e fine sand

- 7 . -· - / 78 16 -16. 79' 8 - '<.