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Engineering Report Geotechnical Investigation and Pavement Design Recommendations for the Proposed North Cargo Berths 5 and 6 Container Storage Yard Paving Prepared for Canaveral Port Authority Prepared by August 2013 P.O. 11839 / 458984

Geotechnical Investigation and Pavement Design

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Page 1: Geotechnical Investigation and Pavement Design

Eng inee r i ng Repo r t

Geotechnical Investigation and Pavement Design Recommendations for the Proposed North Cargo Berths

5 and 6 Container Storage Yard Paving

Prepared for

Canaveral Port Authority

Prepared by

  

August 2013  

P.O. 11839 / 458984

Page 2: Geotechnical Investigation and Pavement Design

PORT CANAVERAL GEOTECHNICAL REPORT III

Contents Section  Page 

1.  Introduction ...................................................................................................................................... 1 2.  Site Location and Proposed Construction ........................................................................................... 1 3.  Previous Geotechnical Investigations ................................................................................................. 1 4.  Field Exploration ............................................................................................................................... 1 

4.1  Cone Penetration Test Soundings ................................................................................................. 1 4.2  Standard Penetration Test Borings ............................................................................................... 4 4.3  Laboratory Testing ........................................................................................................................ 4 

5.  Subsurface Conditions ....................................................................................................................... 5 5.1  Subsurface Soil Profile ................................................................................................................... 5 

6.  Conclusions and Recommendations ................................................................................................... 5 6.1  Subgrade Preparation  .................................................................................................................. 5 6.2  Fill and Backfill ............................................................................................................................... 6 6.3  Excavation ..................................................................................................................................... 6 6.4  Groundwater Control .................................................................................................................... 6 6.5  Foundation Design Recommendations ......................................................................................... 7 6.6  Settlements of Stacked Containers and Harbor Crane ................................................................. 7 6.7  Pavement Design Recommendations ........................................................................................... 8 6.8  Slope Stability and Capacity Analyses for Stockpile Area at NCB‐8 ............................................ 12 6.9  Summary ..................................................................................................................................... 14 

7.  Limitations ...................................................................................................................................... 14 8.  Works Cited ..................................................................................................................................... 14  

 Tables 

1  Summary of SPT Soil Borings ...................................................................................................................... 4 2  Summary of Laboratory Test Results ......................................................................................................... 4 3  Weights and Dimensions of Common Types of Containers ....................................................................... 7 4  Asphalt Binder Properties ........................................................................................................................ 11 5  Recommended Asphalt Concrete Pavement Components...................................................................... 12 6  Summary of Engineering Properties of Soil Profile used in the Stability Analyses .................................. 13 7  Summary of Factor of Safety .................................................................................................................... 13 8  Summary of Stockpile Volumes ............................................................................................................... 13  

Figures 

1  Project and Soil Boring and Sounding Locations  ....................................................................................... 3   

Appendices 

A  Soil Sounding Logs B  Soil Boring Logs and Laboratory Test Results C  Soil Profile Developed by Ardaman and Associates at NCB 8 Area D  Slope Stability Analyses Results E  Plan and Section of Stockpile 

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Page 3: Geotechnical Investigation and Pavement Design

PORT CANAVERAL GEOTECHNICAL REPORT IV

Acronyms and Abbreviations AASHTO  American Association of State Highway and Transportation Officials 

ASTM  American Society for Testing and Materials 

bgs  below ground surface 

cm/sec  centimeters per second 

CPT  Cone Penetration Test 

ESAL  equivalent single axle load 

fc  sleeve friction 

FDOT  Florida Department of Transportation 

GPS  global positioning system 

H  horizontal 

LBR  Limerock bearing ratio 

MLW  Mean Low Water 

N  standard penetration resistance 

NCB  North Cargo Berth 

OSHA  Occupational Safety and Health Administration 

pcf  pound per cubic foot 

psf  pound per square foot 

psi  pound per square inch 

qc  tip resistance 

SPT  standard penetration test 

tcf  tons per cubic foot 

TSR  Tensile Strength Rating 

USCS  Unified Soil Classification System 

°F  degrees Fahrenheit 

  

Page 4: Geotechnical Investigation and Pavement Design

PORT CANAVERAL GEOTECHNICAL REPORT 1

1. Introduction CH2M HILL conducted a geotechnical investigation to evaluate the subsurface conditions at the site of the proposed North Cargo Berths 5 and 6 (NCB 5 and 6) Phase I container storage yard. The scope of work of this geotechnical investigation included the following tasks:  

Conduct six 40‐foot cone penetration test (CPT) soundings (American Society for Testing and Materials [ASTM] D5778), three 40‐ to 50‐foot‐deep Standard Penetration Test (SPT) borings, and two 5‐foot‐deep auger borings 

Conduct five sieve analysis tests (ASTM D1140), five moisture content tests (ASTM D2974), one consolidation test (ASTM D2435), and one limerock bearing ratio test 

Perform engineering analyses and develop geotechnical design recommendations based on the results 

Prepare a geotechnical report describing the field exploration and laboratory analyses, and provide recommendations for the pavement design 

2. Site Location and Proposed Construction Port Canaveral is located in Section 10, Township 24 South, Range 37 East in Brevard County, Florida. The proposed paving area is located south and east of Grouper Road and northeast to the new NCB 5/6 container storage yard as shown in Figure 1. When the borings were made, part of the site was used as a temporary stockpile area for fill material. 

3. Previous Geotechnical Investigations In 1997, Ardaman & Associates, Inc., conducted a geotechnical investigation for the pavement design of the Northside Container Yard, making 34 SPT borings. Interlocking concrete pavers with a thickness of 3‐1/8 inches over 1 inch of bedding sand, 18 inches of crushed granite reinforced with one layer of geogrid, and 12 inches of compacted subbase were included in the pavement design.  

In August 2011, Ardaman & Associates, Inc., conducted a subsurface soil exploration for the proposed NCBs 5 and 8. Five SPT borings and eight CPT soundings were conducted. In addition, 21 undisturbed samples were obtained for laboratory triaxial testing. These borings, soundings, and laboratory test results were used in the slope stability analyses for stockpile at NCB 8. 

In January 2012, Universal Engineering Sciences, Inc., conducted a geotechnical exploration for the proposed bulkhead wall at NCB 6. Three 110‐foot SPT borings were made.  

4. Field Exploration Field exploration consisted of six 40‐foot CPT soundings, three 40‐ to 50‐foot‐deep SPT borings, and two 5‐foot‐deep auger borings. The CPT soundings were conducted by Insitu Group of Orlando, Florida, in April 16, 2013. The SPT borings and auger borings were conducted by Universal Engineering Sciences, Inc., of Rockledge Florida, on April 17, 2013. The soil sounding and boring locations were recorded using a global positioning system (GPS).  

4.1 Cone Penetration Test Soundings The CPT soundings were made at the site in accordance with ASTM D5778 using an electrical cone. This cone has a 10 square centimeter (cm2) cross section area with a 60‐degree apex angle and a 150‐cm2 friction sleeve area. The compressive force at the cone tip, termed the tip resistance (qc), is measured by a compression load cell within the cone housing. The friction acting on the barrel shaped surface of the cone, termed the sleeve friction (fc), is measured by a separate load cell within the same housing.  

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Page 5: Geotechnical Investigation and Pavement Design

GEOTECHNICAL INVESTIGATION FOR THE PROPOSED NORTH CARGO BERTHS 5 AND 6 CONTAINER STORAGE YARD PAVING

PORT CANAVERAL GEOTECHNICAL REPORT 2

During testing, the penetrometer was hydraulically advanced at a rate of 2 centimeters per second (cm/sec). The cone tip resistance, sleeve friction, and pore water pressure were recorded at 5 cm intervals as the cone was advanced. Sounding locations are shown on Figure 1 and sounding logs are presented in Appendix A.

Page 6: Geotechnical Investigation and Pavement Design

GEOTECHNICAL INVESTIGATION FOR THE PROPOSED NORTH CARGO BERTHS 5 AND 6 CONTAINER STORAGE YARD PAVING

PORT CANAVERAL GEOTECHNICAL REPORT 3

FIGURE 1 Project and soil boring and sounding locations

Page 7: Geotechnical Investigation and Pavement Design

GEOTECHNICAL INVESTIGATION FOR THE PROPOSED NORTH CARGO BERTHS 5 AND 6 CONTAINER STORAGE YARD PAVING

PORT CANAVERAL GEOTECHNICAL REPORT 4

4.2 Standard Penetration Test Borings The SPT borings were made in conformance with ASTM D1586 by driving a 2‐inch outside diameter split‐spoon sampler with a 140‐pound hammer falling 30 inches. The number of blows required to drive the sampler the last 12 inches of an 18‐inch drive, or the middle 12 inches of a 24‐inch drive, was recorded as the standard penetration resistance (N) value. Continuous samples were taken to 10 feet below ground surface (bgs) and at 5‐foot intervals thereafter. The boreholes were advanced with rotary drilling and cased with bentonite mud. The soil boring logs are presented in Appendix B. 

All disturbed samples were visually classified in accordance with the Unified Soil Classification System (USCS). Groundwater levels were measured immediately after completion of the boring. The groundwater levels are presented in Table 1 and the borings logs.  

TABLE 1 Summary of SPT Soil Borings

Boring ID 

Estimated Ground Elevation  (ft‐MLW) 

Soil Sampling Depth  (ft, bgs) 

GWT Depth (ft, bgs) 

GWT Elevation (ft‐MLW) a 

B‐1  19.84  25  11.3  8.54 

B‐2  14.05  25  4.6  9.45 

B‐3  19.74  25  10  9.74 

B‐4  16.87  25  6.4  10.47 

B‐5   9.5  40  4.6  4.9  

B‐6  16.5   51.5  7.9  8.6  

B‐7  9.4   42  2.1   7.3 

B‐8  14.3   5  NE  NE 

B‐9  15.2   5  NE  NE 

 a Groundwater levels shown were obtained from field measurements made at the time of the geotechnical exploration on April 17, 2013. It should be noted that the groundwater level will fluctuate with seasonal rainfall. 

NE‐ Not encountered 

Borings B‐1 to B‐4 were made at the proposed stormwater pond location. 

4.3 Laboratory Testing All disturbed samples were visually classified in the field in accordance with the USCS method. Five sieve analysis tests (ASTM D1140), five moisture content tests (ASTM D2974), one consolidation test (ASTM D2435), and one limerock bearing ratio (LBR) test were conducted by Universal Engineering and Science, Inc., to aid in soil classification and evaluation of engineering properties of the soils. The laboratory results are summarized in Table 2, and test reports are presented in Appendix B. 

TABLE 2 Summary of Laboratory Test Results

Boring ID Sample Depth 

(ft) % Fines  

(Silt and Clay) 

Natural Moisture Content  (%) 

USCS Soil Group 

B‐1   7 ‐ 8  20.4  11.4  SC 

B‐1   14 ‐ 15  7.8   28.6  SP‐SM 

B‐2  3 ‐ 4  25.2  30.3  SC 

B‐2  5 ‐ 6  27.7  34.6  SC 

B‐3  14 ‐ 15  34.4  44.4  SC 

B‐5  18.5‐20  4.6  31.8  SP‐SM 

Page 8: Geotechnical Investigation and Pavement Design

GEOTECHNICAL INVESTIGATION FOR THE PROPOSED NORTH CARGO BERTHS 5 AND 6 CONTAINER STORAGE YARD PAVING

PORT CANAVERAL GEOTECHNICAL REPORT 5

B‐6  1 – 2.5  3.2  5.5  SP 

B‐7  5 – 6.5  7.2  23  SP‐SM 

B‐8  4 – 5  10.7  32  SP‐SM 

B‐9  2.5 – 3.5  2.5  4  SP 

 

An LBR test (FM 5‐515 LBR) was conducted on a bulk sample taken from boring B‐8 at a depth from 0 to 1 foot bgs. The sample was described as brown medium sand mixed with slag cement. The test result indicated that the soil was stabilized with slag cement and had an LBR of 40 percent. 

A consolidation test was conducted on Shelby tube samples taken from boring B‐7 at 41 feet bgs. The soil was classified as sandy clay. The test result indicated that the clay was slightly over‐consolidated.  

5. Subsurface Conditions 5.1 Subsurface Soil Profile The soil borings and soundings generally encountered 5 to 12 feet of medium dense to dense sand and silty sand with shell overlying 15 to 20 feet of loose to dense sand and silty sand with shell, which in turn overlaid loose to dense sand with silt and traces of shell to 45 to 50 feet bgs. 

The groundwater table elevation when the borings were made was 2 to 8 feet bgs. The seasonal high groundwater table at the site was estimated at 2 feet bgs. Since the site is immediately adjacent to the ocean, the groundwater table elevation is affected by the tidal water levels.  

6. Conclusions and Recommendations The findings of the subsurface evaluation were used to develop conclusions and recommendations in the following areas: 

Subgrade Preparation 

Fill and Backfill 

Trench Backfill 

Excavation 

Groundwater Control 

Foundation Design Recommendations 

Settlements of Stacked Containers and Harbor Crane 

Pavement Design Recommendations 

Slope Stability Analyses for Stockpile Area at NCB8 

6.1 Subgrade Preparation Based on the foundation soils encountered in the soil borings and soundings, the following subgrade preparation procedures are recommended: 

Overexcavate the upper 2 feet of subgrade to 5 feet beyond the perimeter of the proposed paving area. Stockpile the excavated material free of organics and unsuitable material for reuse. 

Proof roll the excavation bottom with a minimum of 10 overlapping passes using a 10‐ton or heavier vibratory roller. The upper 12 inches of the bottom should be compacted to at least 98 percent of the maximum dry density as determined by ASTM D1557. Any soft areas that cannot be compacted should be over‐excavated and replaced with compacted sand or silty sand. 

Place the stockpiled material back in the excavation pit in 8‐inch lifts and compact each lift to at least 98 percent of the maximum dry density as determined by ASTM D1557 to function as stabilized subbase. 

Page 9: Geotechnical Investigation and Pavement Design

GEOTECHNICAL INVESTIGATION FOR THE PROPOSED NORTH CARGO BERTHS 5 AND 6 CONTAINER STORAGE YARD PAVING

PORT CANAVERAL GEOTECHNICAL REPORT 6

6.2 Fill and Backfill 6.2.1 Granular Fill Granular fill is recommended for fill to be placed beneath pavements. Granular fill should consist of sand, silty sand, clayey sand, or gravelly sand classified as SP, SM, SC, or SW in accordance with the USCS (ASTM D2487). The fill material should be placed in 8‐inch maximum loose lifts, with each lift compacted to at least 98 percent of the maximum dry density, as determined by ASTM D1557. At the time of compaction, the fill material should be at optimum moisture content, +2 percent.  

Granular fill should be used for fill adjacent to walls. The granular fill should be compacted with plate vibratory compactors or hand‐operated power tampers. The backfill material should be placed in 8‐inch maximum loose lifts with each lift compacted to 90 percent of the maximum dry density, as determined by ASTM D1557. To prevent excessive lateral pressure on external walls, large compaction equipment should not be allowed within a zone formed by a 45‐degree slope from the base of the wall footing.  

6.2.2 Pipe Trench Backfill Pipe trench backfill for utility pipes beneath slabs, footings, and pavements should consist of the granular fill specified previously. This granular fill should be placed in horizontal lifts not to exceed 8 inches in uncompacted thickness, and compacted to at least 98 percent of the maximum dry density, as determined by ASTM D1557. In other areas, excavated material free of roots, debris, clay, organic material, rocks larger than 3 inches, or other deleterious objects is suitable for use as trench backfill above the pipe crown. In these areas, the excavated material should be compacted to at least 90 percent of the maximum dry density, as determined by ASTM D1557. 

The pipe base material should consist of granular fill, as specified previously, and should be compacted to at least 98 percent of the maximum dry density, as determined by ASTM D1557. 

6.3 Excavation The soil profiles encountered in the borings indicated that excavation can generally be done with conventional earthmoving equipment, such as backhoes or front‐end loaders. An unbraced temporary excavation with the side slope inclined at 1.5 Horizontal (H) to 1 Vertical (V) or flatter is expected to remain stable if not subjected to surcharge load or vibration. Excavations deeper than 5 feet should be sloped or shored in accordance with Occupational Safety and Health Administration (OSHA) standards (Title 29, Code of Federal Regulations [29 CFR], Part1926.650). Surface water runoff should be prevented from entering the excavation by berms, swales, or other methods. All grass, topsoil, and organic material should be stripped before excavation begins. Excavation should be conducted in accordance with applicable federal, state, and local ordinances protecting workers.  

6.4 Groundwater Control The groundwater table elevation at the site was approximately 2 to 8 feet bgs when the soundings and borings were made. These groundwater levels will fluctuate with tidal water levels, seasonal and climatic variations, variations in subsurface soil conditions, and construction operations. Therefore, groundwater conditions in the future, and at other locations onsite, may differ from the conditions encountered at the boring locations on the dates the borings were performed. Water may be encountered during construction at depths not indicated during this investigation. It should be noted that groundwater conditions, including perched water, vary during periods of prolonged drought and excessive rainfall, as well as seasonally. Therefore, fluctuations in perched water conditions and in groundwater elevations should be expected with changing climatic and rainfall conditions. 

Water should not be allowed to collect near the bottom of trench excavations during or after construction. Undercut or excavated areas should be sloping toward one corner to facilitate removal of any collected rainwater, groundwater, or surface runoff.  

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Appendix A Soil Sounding Logs

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Page 13: Geotechnical Investigation and Pavement Design

RE

V:

04

-40

.68

-

0

D e p t h F e e t

0

5

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Page 14: Geotechnical Investigation and Pavement Design

RE

V:

04

-40

.68

-

0

STA

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----

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V:

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-40

.68

-

0

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Page 16: Geotechnical Investigation and Pavement Design

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V:

04

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.68

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Page 17: Geotechnical Investigation and Pavement Design

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V:

04

-40

.68

-

0

D e p t h F e e t

0

5

10

15

20

25

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Page 18: Geotechnical Investigation and Pavement Design

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V:

04

-40

.68

-

0

STA

ND

AR

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Page 19: Geotechnical Investigation and Pavement Design

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V:

04

-40

.68

-

0

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Page 20: Geotechnical Investigation and Pavement Design

RE

V:

04

-40

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Page 21: Geotechnical Investigation and Pavement Design

RE

V:

04

-40

.68

-

0

D e p t h F e e t

0

5

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Page 22: Geotechnical Investigation and Pavement Design

RE

V:

04

-40

.68

-

0

STA

ND

AR

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ND

TO

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TY

SA

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64.

87

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-37

142

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S

AN

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T T

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24.

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CLA

YE

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63

19

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LAY

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1

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AN

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8

2.6

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181

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117

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SA

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133

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294

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54.8

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58%

-65%

39-4

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40.6

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5

S

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84.7

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0.7

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65%

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39-4

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TY

SA

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80.

77

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TY

CLA

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7.19

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4.6

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26

30

S

AN

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SIL

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1.87

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33

35-4

2%<

25 2

6.12

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31

S

ILT

Y S

AN

D T

O S

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DY

SIL

T

27.

55

0.0

8 8

0

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35-4

2%29

-31

60.

62--

----

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2

SA

ND

TO

SIL

TY

SA

ND

44.

62

0.1

2 1

1 0

.987

35

-42%

31-3

3 9

8.17

----

----

33

S

AN

DY

SIL

T T

O C

LAY

EY

SIL

T 1

4.71

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6

1.0

16

35-4

2%<

25 3

2.36

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34

S

AN

DY

SIL

T T

O C

LAY

EY

SIL

T 1

5.89

0

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5

1.0

45

35-4

2%25

-27

34.

96--

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5

SIL

TY

SA

ND

TO

SA

ND

Y S

ILT

1

7.46

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5

1.0

72

35-4

2%25

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38.

42--

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6

SIL

TY

SA

ND

TO

SA

ND

Y S

ILT

1

7.25

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5

1.0

99

35-4

2%25

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95--

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7

SIL

TY

SA

ND

TO

SA

ND

Y S

ILT

1

8.05

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6

1.1

25

35-4

2%25

-27

39.

72--

----

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8

SIL

TY

SA

ND

TO

SA

ND

Y S

ILT

1

8.91

0

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6

1.1

52

35-4

2%25

-27

41.

6--

----

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9

SIL

TY

SA

ND

TO

SA

ND

Y S

ILT

1

9.17

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6

1.1

78

35-4

2%25

-27

42.

18--

----

--

Page 23: Geotechnical Investigation and Pavement Design

Appendix B Soil Boring Logs

Page 24: Geotechnical Investigation and Pavement Design
Page 25: Geotechnical Investigation and Pavement Design
Page 26: Geotechnical Investigation and Pavement Design
Page 27: Geotechnical Investigation and Pavement Design
Page 28: Geotechnical Investigation and Pavement Design
Page 29: Geotechnical Investigation and Pavement Design
Page 30: Geotechnical Investigation and Pavement Design
Page 31: Geotechnical Investigation and Pavement Design
Page 32: Geotechnical Investigation and Pavement Design
Page 33: Geotechnical Investigation and Pavement Design
Page 34: Geotechnical Investigation and Pavement Design
Page 35: Geotechnical Investigation and Pavement Design

Appendix C Soil Profile Developed by Ardaman and Associates

at NCB 8 Area

Page 36: Geotechnical Investigation and Pavement Design
Page 37: Geotechnical Investigation and Pavement Design

Appendix D Slope Stability Analyses Results

Page 38: Geotechnical Investigation and Pavement Design
Page 39: Geotechnical Investigation and Pavement Design
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Page 41: Geotechnical Investigation and Pavement Design