6-Exhibit I Plans and Specs.pdf

PDF 12 MB Posted Aug 12, 2025

Attached to: Pine Island Breakwater Project
Solicitation number: 2025-23
Issued by: Barnwell County, South Carolina

About this file

Written by GovTribe AI · Aug 27, 2025

This is a bid set of contract documents for the Pine Island Breakwater Project located in the Town of Hilton Head, South Carolina, prepared by Foth Infrastructure & Environment, LLC and Olsen Associates, Inc. The project involves constructing a series of six breakwater structures (S1-S6) along the shoreline of Pine Island, with associated beach fill and marine mattress installations. The breakwater structures will be built using stone-filled mattresses of varying sizes, armor stone, and geotextile fabric, with each section ranging from approximately 75-102 feet in length. The project is scheduled for construction in the fall of 2025, with beach fill to be completed by others prior to the main construction phase.

The project documents detail extensive technical specifications for the breakwater construction, including specific requirements for excavation, stone placement, mattress installation, and environmental considerations. The total rock structure quantities include approximately 9,888 tons of armor stone, 1,741 tons of chinking stone, and 32,032 square feet of stone-filled mattresses. The breakwater design incorporates careful consideration of existing site conditions, including tidal marsh, existing wooden walkways, and soft soil conditions. Warning signs will be installed, and the project includes provisions for maintaining existing access points and minimizing disturbance to the surrounding environment. The bid set is dated 08/04/2025 and is marked as a bid set for potential contractors to review and submit proposals.

View the file

Other files

File	Type	Posted
1-Exhibit A-1 Contractor Statement of Qualification.pdf	PDF	Aug 12, 2025
10-Mandatory Pre-Bid Sign in Sheet 8.26.25.pdf	PDF	Aug 12, 2025
2-Exhibit B Bid Schedule.xlsx	XLSX spreadsheet	Aug 12, 2025
3-Exhibit E Supplemental Contract Terms Conditions.pdf	PDF	Aug 12, 2025
4-Exhibit G Technical Requirements.pdf	PDF	Aug 12, 2025
8-Exhibit P- Permits.pdf	PDF	Aug 12, 2025
5-Exhibit H Environmental Protection.pdf	PDF	Aug 12, 2025
7-Exhibit O - Towns SMBE Good Faith Effort Packet.pdf	PDF	Aug 12, 2025
11-2025-08-27 Pine Island Strux Pre-Bid Presentation printfriendly.pdf	PDF	Aug 12, 2025
9-IFB 2025-23 Pine Island Breakwater 8.12.2025 Final.pdf	PDF	Aug 12, 2025

On GovTribe

Work with this file

Download the original file
Contacts named in this file
Similar government files
Ask GovTribe AI about this file

Try for free Login

Text version

The file's text, extracted by GovTribe without its formatting.

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

COVER

ML 08/04/2025

ZB 08/04/2025

ATLANTIC OCEAN

HILTON HEAD ISLAND

BULL ISLAND

DAUFUSKIE ISLAND

PARRIS

ISLAND

BAY POINT

ISLAND

CALIBOGUE SOUND

T R O

YAL SO

N D

PINE

ISLAND

PREPARED BY:

FOTH INFRASTRUCTURE &

ENVIRONMENT, LLC. | OLSEN

ASSOCIATES, INC.

2618 HERSCHEL ST

JACKSONVILLE, FL 32204

COA: 4194

PREPARED FOR:

TOWN OF HILTON HEAD ISLAND, SC

BID SET FOR

PINE ISLAND BREAKWATER PROJECT

TOWN OF HILTON HEAD ISLAND, SC

CONTRACT DOCUMENTS

VOLUME II

SHEET INDEX

SHEET SHEET DESCRIPTION

SITE DATA2

LOCATION OF WORK3

COVER

EXISTING CONDITIONS

STAGING & ACCESS INFO

BREAKWATER SECTION LOCATIONS (S1-S3)

BREAKWATER PLAN OF IMPROVEMENT

BREAKWATER SECTIONS (1)

BREAKWATER SECTIONS (2)

MARINE MATTRESS DETAILS

BREAKWATER SECTIONS (3)

BREAKWATER SECTIONS (4)

BREAKWATER SECTION LOCATIONS (S4-S6)

BREAKWATER MATTRESS LAYOUT (S1-S2)

BREAKWATER MATTRESS LAYOUT (S3-S4)

BREAKWATER MATTRESS LAYOUT (S5-S6)

BEACH FILL & EXISTING CONDITIONS (S1-S3)

BEACH FILL & EXISTING CONDITIONS (S4-S6)

AutoCAD SHX Text

DATE: 08/04/2025

AutoCAD SHX Text

IFB NO.: 2025-23

Charleston

Hilton Head Island, SC

SOUTH

CAROLINA

GEORGIA

ATLANTIC OCEAN

I-95

I-26

I-20

I-16

Savannah

Jacksonville

Charleston

Wilmington

Tampa

Atlanta

FLORIDA

Hilton Head Island, SC

Atlantic Ocean

GEORGIA

SOUTH

CAROLINA

I-10

I-75

I-16 I-95

I-4

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

SITE DATA

ML 08/04/2025

ZB 08/04/2025

Wind and Wave Data Summary Developed From WIS Hindcast Atlantic Station #366

32.08 N 80.50 W, 15 miles ESE of Forest Beach, Water depth: 52.5ft, (1/2000 - 12/2023)

TIDE DATA - 2025

03 10 17 24 31 07 14 21 28 06 13 20 27 03 10 17 24 01 08 15 22 29 05 12 19 26 03 10 17 24 31 07 14 21 28 04 11 18 25 02 09 16 23 30 06 13 20 27 04 11 18 25

-6.0

-5.5

-5.0

-4.5

-4.0

-3.5

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0 W

at er

S ur fa ce

E le va tio n (F

T- N

JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

-6.0

-5.5

-5.0

-4.5

-4.0

-3.5

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

W at er S ur fa ce E le va tio n

(F T-

AR AP

AY JU

O C

N O

T W

G H

T (F

WAVE DATA

AR AP

AY JU

O C

N O

D S

(K N

WIND DATA

NOAA Station #8670870 (Fort Pulaski, GA)

0°

45°

90°

135°

180°

225°

270°

315°

0% 5% 10% 15% 20%

Significant Wave Height (ft) <=2 >2 - 3 >3

0°

45°

90°

135°

180°

225°

270°

315°

0% 5% 10%

Wind Speed (knots) <=10 >10 - 15 >15

MHW (+2.82)

MLW (-3.62)

GENERAL NOTES: 1. ALL ELEVATIONS DEPICTED IN THESE DRAWINGS ARE IN ALL ELEVATIONS DEPICTED IN THESE DRAWINGS ARE IN FEET AND TENTHS AND ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM (NAVD) OF 1988, UNLESS OTHERWISE NOTED. 2. THE INFORMATION DEPICTED ON THESE DRAWINGS REPRESENTS THE RESULTS OF SURVEYS MADE ON THE DATES INDICATED AND CAN ONLY BE CONSIDERED THE INFORMATION DEPICTED ON THESE DRAWINGS REPRESENTS THE RESULTS OF SURVEYS MADE ON THE DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS AT THAT TIME. 3. HORIZONTAL CONTROL COORDINATES ARE BASED UPON STANDARD STATE PLANE RECTANGULAR COORDINATE SYSTEM FOR THE STATE OF SOUTH CAROLINA HORIZONTAL CONTROL COORDINATES ARE BASED UPON STANDARD STATE PLANE RECTANGULAR COORDINATE SYSTEM FOR THE STATE OF SOUTH CAROLINA (NAD 1983) AND ARE IN INTERNATIONAL FEET. 4. THE ACCURACY OF THE PHOTOGRAPHY SHOWN BY THESE PLANS IS DEPENDENT UPON SEVERAL FACTORS. THE PHOTOGRAPHY IS SHOWN FOR GENERAL THE ACCURACY OF THE PHOTOGRAPHY SHOWN BY THESE PLANS IS DEPENDENT UPON SEVERAL FACTORS. THE PHOTOGRAPHY IS SHOWN FOR GENERAL INFORMATION ONLY AND THE LOCATION OR STATION OF ANY FEATURE SCALED FROM THESE MAPS MUST BE CONSIDERED APPROXIMATE. 5. BEARINGS ARE RELATED TO GRID NORTH. BEARINGS ARE RELATED TO GRID NORTH. 6. DISTANCES SHOWN ARE GRID DISTANCES.DISTANCES SHOWN ARE GRID DISTANCES.

BEACH CITY ROAD

ILLO

E FO

LLY

SEA PINES

SOUTH

FOREST

BEACH

COLIGNY

CIRCLE

NORTH

FOREST

BEACH

PALMETTO DUNES

MARRIOTT

HILTON HEAD ISLAND

SINGLETON BEACH

PORT ROYAL

PLANTATION

WESTIN

HILTON HEAD

PLANTATION

ATLANTIC OCEAN

EBB

FLOOD

US 278 BUSINESS

BRADLEY

BEACH

SOUTH BEACH

FLO

CALIBOGUE SOUND

BULL ISLAND

PARRIS

ISLAND

BAY POINT

ISLAND

DAUFUSKIE ISLAND

EBB

R T R

YAL SO

U N

FISH HAUL CREEK

CONSTRUCTION ACCESS

(DOLPHIN HEAD

RECREATION AREA)

BLUFFTON

PINE ISLAND

(PROJECT AREA)

SQUIRE POPE ROAD

30000 6000

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

LOCATION

OF WORK

ML 08/04/2025

ZB 08/04/2025

TO I-9

-23

-22

-20 -19

-18-17

-16

-15

-1

-14

-1

-13

-1

-12

-1

-11

-10

-9

-8

-7

-6

-5

-4

-3.6

-3

-2

-1

2.8

2.82.8

4 4

MLWL (0

5/25)

L (

/2 5)

L (0

MHWL (05/25)

STA.00+00.0

STA.01+20.3

STA.03+20.4

STA.05+20.4

STA.07+20.4

STA.08+45.7

STA.11+00.0

STA.14+29.7

STA.16+62.5

STA.19+58.9

STA.20+00.0

DOLPHIN HEAD

RECREATION AREA

EBB FLOODPORT ROYAL SOUND

PINE ISLAND

TIDAL MARSH

APPROX. LOCATION

OF EXISTING ROCK

REVETMENT, TYP.

(DO NOT DISTURB)

PRIMARY

CONSTRUCTION

ACCESS AND STAGING

(SEE SHEET 6)

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

EXISTING

CONDITIONS

ML 08/04/2025

ZB 08/04/2025

B R

W A

P R

C T

N O

F H

N H

, S C

CONSTRUCTION

BASELINE

SOFT SOIL

CONDITIONS

1000 200

SCALE (FT)

EXISTING WOODEN

WALKWAY

(DO NOT DISTURB)

SKULL

CREEK

CONSTRUCTION

BASELINE

STATION, TYP.

P R O J E C T A R E A

SOFT SOIL

CONDITIONS

SOFT SOIL

CONDITIONS

SOFT SOIL

CONDITIONS

BEACH FILL (YELLOW SHADING) TO BE

COMPLETED BY OTHERS IN THE FALL

OF 2025 PRIOR TO CONSTRUCTION

NOTES: 1. ELEVATIONS IN FEET RELATIVE TO NAVD88. ELEVATIONS IN FEET RELATIVE TO NAVD88. 2. HORIZONTAL POSITIONS IN SC STATE PLANE (FT, NAD83) HORIZONTAL POSITIONS IN SC STATE PLANE (FT, NAD83) 3. DATE OF PHOTOGRAPHY: APRIL 2025. DATE OF PHOTOGRAPHY: APRIL 2025. 4. DATE OF SURVEY: MAY 2025. DATE OF SURVEY: MAY 2025. 5. BEACH FILL TO BE CONSTRUCTED BY DREDGING CONTRACTOR BEACH FILL TO BE CONSTRUCTED BY DREDGING CONTRACTOR UNDER SEPARATE, EXISTING CONTRACT WITH TOWN. 6. FINAL DESIGN PLAN MAY BE ADJUSTED BASED UPON BEACH FINAL DESIGN PLAN MAY BE ADJUSTED BASED UPON BEACH CONDITIONS AT TIME OF CONSTRUCTION.

-23

-22

-20 -19

-18-17

-16

-15

-1

-14

-1

-13

-1

-12

-1

-11

-10

-9

-8

-7

-6

-5

-4

-3.6

-3

-2

-1

2.8

2.82.8

4 4

MLWL (0

5/25)

L (

/2 5)

L (0

MHWL (05/25)

STA.00+00.0

STA.01+20.3

STA.03+20.4

STA.05+20.4

STA.07+20.4

STA.08+45.7

STA.11+00.0

STA.14+29.7

STA.16+62.5

STA.19+58.9

STA.20+00.0

1000 200

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

PLAN OF

IMPROVEMENT

ML 08/04/2025

ZB 08/04/2025

S6 S5

S4 S3S2

EXISTING WOODEN

WALKWAY

(DO NOT DISTURB)

PINE ISLAND

TIDAL MARSH

EBB FLOODPORT ROYAL SOUND

NEW RIP-RAP

BREAKWATER, TYP.

NEW RIP-RAP

SPUR

NEW RIP-RAP

BREAKWATER W/

STEM, TYP.

CONSTRUCTION

BASELINE

BREAKWATERS S4-S6 DETAILS

(SEE SHEET 8)

BREAKWATERS S1-S3 DETAILS

(SEE SHEET 7)

APPROX. LOCATION

OF EXISTING ROCK

REVETMENT, TYP.

(DO NOT DISTURB)

DOLPHIN HEAD

RECREATION

AREA

PRIMARY

CONSTRUCTION

ACCESS AND STAGING

(SEE SHEET 6)

CONSTRUCTION

BASELINE

STATION, TYP. SKULL

CREEK

NEW WARNING SIGN

(SEE SHEET 11)

BEACH FILL (YELLOW SHADING) TO BE

COMPLETED BY OTHERS IN THE FALL

OF 2025 PRIOR TO CONSTRUCTION

STA.00+00.0

STA.01+20.3

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

STAGING AND

ACCESS INFO

ML 08/04/2025

ZB 08/04/2025

6 of 18300 60

SCALE (FT)

EBB FLOODPORT ROYAL SOUND

EXISTING WOODEN

WALKWAY

(DO NOT DISTURB)

NEW RIP-RAP

SPUR (S1)

DOLPHIN HEAD

RECREATION AREA

STAGING AND ACCESS

(LIMITS TO BE FIELD VERIFIED)

CONSTRUCTION

BASELINE.

BEACH FILL (YELLOW SHADING)

TO BE COMPLETED BY OTHERS

IN THE FALL OF 2025 PRIOR TO

CONSTRUCTION

APPROX. LOCATION

OF EXISTING ROCK

REVETMENT, TYP.

(DO NOT DISTURB)

CONSTRUCTION

BASELINE

STATION,

TYP.

PRIVATE DRIVEWAY, ACCESS

TO BE MAINTAINED

(NO ACCESS BY CONTRACTOR)

EXISTING

PARKING

BAYS, TYP.

AVOIDANCE OF

TREES REQUIRED

ENTRANCE TO DOLPHIN

HEAD RECREATION AREA

ACCES

TO B

EXISTING STAGING AREA (APRIL 2025)

BEACH ACCESS (APRIL 2025)

LPH

EAD DR

ACCESS TO

BEACH SHALL

BE AROUND

EXISTING

WALKWAY

APPROX. ROADWAY

LOCATION, TO BE

FIELD DETERMINED

STA.00+00.0

STA.01+20.3

STA.03+20.4

STA.05+20.4

STA.07+20.4

46'46'

S2'

B'B

S3'

C S3D

S3B

S3C

S3A S2A

S2C

S2B

S2D

208'

54'

208'

54' S1B

S1A

~110'

2:1 2:

2:1

EBB FLOOD

PORT ROYAL SOUND

400 80

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

SECTION

LOCATIONS

(S1-S3)

ML 08/04/2025

ZB 08/04/2025

S3 S2

CONSTRUCTION

BASELINE

CONSTRUCTION

BASELINE

STATION, TYP.

DOLPHIN HEAD

RECREATION AREA

PINE ISLANDTIDAL MARSH

APPROX. LOCATION

OF EXISTING ROCK

REVETMENT, TYP.

(DO NOT DISTURB)

PRIMARY

CONSTRUCTION

ACCESS AND STAGING

(SEE SHEET 6)

EXISTING WOODEN

WALKWAY

(DO NOT DISTURB)

STEM FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 2: 18'X6.5'X0.5')

T-HEAD FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 1: 22'X6.5'X0.5')

LIMIT OF GEOGRID/FABRIC

COMPOSITE, TYP.

(SIZE: 32'X12.5)

SPUR TIE-IN TO

EXISTING ROCK

REVETMENT, TYP.

STEM FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 2: 18'X6.5'X0.5')

TOE OF BREAKWATER

SLOPE, TYP.

LIMIT OF STONE

FILLED MATTRESS,

TYP.

BREAKWATER

CREST, TYP.

BEACH FILL (YELLOW SHADING) TO BE

COMPLETED BY OTHERS IN THE FALL

OF 2025 PRIOR TO CONSTRUCTION

STRUCTURE

CONTROL ID, TYP.

(SEE TABLE)

STRUCTURE SECTIONS

(SEE SHEETS 14-17)

GEOGRID/FABRIC

TO FILL GAP IN

MATTRESSES

GEOGRID/FABRIC

TO FILL GAP IN

MATTRESSES

GEOGRID/FABRIC TO

LAP OVER EXISTING

REVETMENT

SOFT SOIL

CONDITIONS

STA.07+20.4

STA.08+45.7

STA.11+00.0

STA.14+29.7

STA.16+62.5

2:1

D E'

D F'

46'

S3'

S4A

S5A

S5B

S6A S6B

85'

75'

S4D

S4C

S4B

208'

54'

2:1

EBB FLOOD

PORT ROYAL SOUND

400 80

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

SECTION

LOCATIONS

(S4-S6)

ML 08/04/2025

ZB 08/04/2025

STEM FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 2: 18'X6.5'X0.5')

T-HEAD FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 1: 22'X6.5'X0.5')

LIMIT OF GEOGRID/FABRIC

COMPOSITE, TYP.

(SIZE: 32'X12.5)

CONSTRUCTION

BASELINE

CONSTRUCTION

BASELINE

STATION, TYP.

PINE ISLAND

TIDAL MARSH

LIMIT OF STONE

FILLED MATTRESS,

TYP.

TOE OF BREAKWATER

SLOPE, TYP.

BREAKWATER

CREST, TYP.

BEACH FILL (YELLOW SHADING) TO BE

COMPLETED BY OTHERS IN THE FALL

OF 2025 PRIOR TO CONSTRUCTION

TOE OF BREAKWATER

SLOPE, TYP.

BREAKWATER

CREST, TYP.

STRUCTURE

CONTROL ID, TYP.

(SEE TABLE)

STRUCTURE SECTIONS

(SEE SHEETS 14-17)

GEOGRID/FABRIC TO FILL

GAP IN MATTRESSES

SOFT SOIL

CONDITIONS

NEW WARNING SIGN

(SEE SHEET 11)

S1-1A

S1-1F

S1-1D S1-1E

S1-1C

S1-1B

S2-1A

S2-1B

S2-1C

S2-1D

S2-1F

S2-1J S2-1H

S2-1G

S2-2AS2-2D

S2-2B

S2-1K

S2-1E

S2-2C

EBB FLOOD

PORT ROYAL SOUND

200 40

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

MATTRESS

LAYOUT

(S1-S2)

ML 08/04/2025

ZB 08/04/2025

APPROX. LOCATION

OF EXISTING ROCK

REVETMENT, TYP.

(DO NOT DISTURB)

STEM FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 2: 18'X6.5'X0.5')

T-HEAD FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 1: 22'X6.5'X0.5')

LIMIT OF

GEOGRID/FABRIC

COMPOSITE, TYP.

(SIZE: 32'X12.5')

(MIN. 2-FT OVERLAP)

MATTRESS LAYOUT

CONTROL POINT, TYP.

(SEE TABLE)

2,085,420.6E 158,270.5N

2,085,441.1E 158,245.9N

MATTRESS TO BE PLACED ADJACENT

TO EXISTING TOE OF REVETMENT.

LIMIT TO BE FIELD VERIFIED.

2,085,537.2E 158,325.7N

2,085,516.8E 158,350.3N

GEOGRID/FABRIC

PLACED OVER GAP

IN MATTRESSES

(MIN. 2-FT OVERLAP)

GEOGRID/FABRIC TO

LAP OVER EXISTING

REVETMENT

(SIZE: 64'X12.5')

S3-1A

S3-1B

S3-1C

S3-1D

S3-1F

S3-1J

S3-1H

S3-1G

S3-2AS3-2D

S3-2B

S3-1K

S3-1E

S4-1A

S4-1B

S4-1C

S4-1D

S4-1F

S4-1J S4-1H

S4-1G

S4-2AS4-2D

S4-2B

S4-2C

S4-1E

S4-1K

S3-2C

EBB FLOOD

PORT ROYAL SOUND

200 40

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

MATTRESS

LAYOUT

(S3-S4)

ML 08/04/2025

ZB 08/04/2025

S4S3

STEM FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 2: 18'X6.5'X0.5')

T-HEAD FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 1: 22'X6.5'X0.5')

STEM FOUNDATION

STONE-FILLED

MATTRESSES

(SIZE 2: 18'X6.5'X0.5')

LIMIT OF

GEOGRID/FABRIC

COMPOSITE, TYP.

(SIZE: 32'X12.5')

(MIN. 2-FT OVERLAP)

MATTRESS LAYOUT

CONTROL POINT, TYP.

(SEE TABLE)

2,085,232.2E 158,507.6N

2,085,252.6E 158,482.9N

2,085,043.0E 158,741.3N

2,085,063.4E 158,716.7N

2,085,348.8E 158,562.8N

2,085,328.3E 158,587.4N

2,085,159.6E 158,796.6N

2,085,139.1E 158,821.2N

GEOGRID/FABRIC

PLACED OVER GAP

IN MATTRESSES

(MIN. 2-FT OVERLAP)

STA.11+00.0

STA.14+29.7

S5-1A

S5-1B

S5-1C

S5-1D

S6-1C

S6-1A

S6-1B

S6-1D

S4-1C

EBB FLOOD

PORT ROYAL SOUND

250 50

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

MATTRESS

LAYOUT

(S5-S6)

ML 08/04/2025

ZB 08/04/2025

BREAKWATER FOUNDATION

STONE-FILLED MATTRESSES

(SIZE 1: 22'X6.5'X0.5')

MATTRESS LAYOUT

CONTROL POINT, TYP.

(SEE TABLE)

DANGER

ROCKS

TIP -10FT

BELOW

EXISTING

GRADE

(MIN)

ELEV. VARIES

36" x 36"

REFLECTIVE

WARNING SIGN

(TYP)

TIMBERGUARD PILE

12" BUTT

(CAP REQUIRED)

ELEV. +10 FT

NAVD

ALL FASTENERS TO BE SS

10" TYP

SEABED

NTS

ONE (1) WARNING

SIGN INSTALLATION

REQUIRED

USCG SPEC

2" ORANGE

REFLECTIVE BORDER

WHITE

DAYBOARD

SINGLE SIGN FACING

PORT ROYAL SOUND

6" LAG SCREW W/ 1-1/2"

WASHER (3 REQ'D)

CAP

JETTED

DRIVEN TIP

BUTT

WARNING SIGN DETAIL

NEW WARNING SIGN

(LOCATION TBD)

CONSTRUCTION

BASELINE

CONSTRUCTION

BASELINE

STATION, TYP.

-3

-2

-1

1 2

2.8 2.

1V :1

SEAWARD EDGE

OF BERM (+8')

LANDWARD

LIMIT OF FILL

SEAWARD EDGE

OF BERM (+5.5)

TOE OF FILL

LANDWARD EDGE

OF BERM (+8')

STA.00+00.0

STA.01+20.3

STA.03+20.4

STA.05+20.4

STA.07+20.4

2:1 2:

2:1

PRIMARY

CONSTRUCTION

ACCESS AND STAGING

(SEE SHEET 6)

EXISTING WOODEN

WALKWAY

(DO NOT DISTURB)

EBB FLOOD

PORT ROYAL SOUND

400 80

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BEACH FILL &

EXISTING

CONDITIONS

(S1-S3)

ML 08/04/2025

ZB 08/04/2025

S3S2

CONSTRUCTION

BASELINE

NEW RIP-RAP ROCK

BREAKWATER

W/STEM , TYP.

NEW

RIP-RAP

SPUR

CONSTRUCTION

BASELINE

STATION, TYP.

DOLPHIN HEAD

RECREATION AREA

PINE ISLANDTIDAL MARSH

APPROX. LOCATION

OF EXISTING ROCK

REVETMENT, TYP.

(DO NOT DISTURB)

BEACH FILL (YELLOW SHADING) TO BE

COMPLETED BY OTHERS IN THE FALL

OF 2025 PRIOR TO CONSTRUCTION

GEOGRID/FABRIC TO

LAP OVER EXISTING

REVETMENT

MATTRESS

LIMIT, TYP.

GEOGRID/

FABRIC,

TYP.

+8.0 FT

MAY 2025 DEPTH

CONTOURS, TYP.

(FT,NAVD)

-14

-13-12-11-10

-9 -8

-7

-6

-5

-4 -3.6

-3

-2

-1

0 0

2.8

5 5

MHWL (05/25)

1V :1

SEAWARD EDGE

OF BERM (+8')

LANDWARD

LIMIT OF FILL

SEAWARD EDGE

OF BERM (+5.5)

TOE OF FILL

LANDWARD EDGE

OF BERM (+8')

STA.07+20.4

STA.08+45.7

STA.11+00.0

STA.14+29.7

STA.16+62.5

2:1

EBB FLOOD

PORT ROYAL SOUND

400 80

SCALE (FT)

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BEACH FILL &

EXISTING

CONDITIONS

(S4-S6)

ML 08/04/2025

ZB 08/04/2025

NEW RIP-RAP ROCK

BREAKWATER

W/STEM

NEW RIP-RAP ROCK

BREAKWATER, TYP.

CONSTRUCTION

BASELINE

CONSTRUCTION

BASELINE

STATION, TYP.

PINE ISLAND

TIDAL MARSH

BEACH FILL (YELLOW SHADING) TO BE

COMPLETED BY OTHERS IN THE FALL

OF 2025 PRIOR TO CONSTRUCTION MATTRESS

LIMIT, TYP.

GEOGRID/

FABRIC,

TYP.

+8.0 FT

MAY 2025 DEPTH

CONTOURS, TYP.

(FT,NAVD)

NEW WARNING SIGN

(SEE SHEET 11)

DISTANCE ALONG STRUCTURE (FEET)

N (F

T-

) 10

SECTION S1-S1' (STRUCTURE S1)

3002001000-100

DISTANCE ALONG STRUCTURE (FEET)

SECTION S2-S2' (STRUCTURE S2)

3002001000

MHW = +2.82FT

MLW = -3.62FT

-100

MHW = +2.82FT

MLW = -3.62FT

-50 50 150 250

-50 50 150 250 350

-2

-4

-6

-8

-12

-10

N (F

T-

) 10

-2

-4

-6

-8

-12

-10

~24.0'

+6.0'

SPUR CREST, TYP.

2' MIN, TYP.

EXISTING ROCK

REVETMENT, TYP.

(DO NOT DISTURB)

TOE OF BREAKWATER

SLOPE, TYP. (-1.0)

EXCAVATE TO -1.5', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

STONE-FILLED

MATTRESS

86.0'

GEOGRID/

FABRIC, TYP.

STONE-FILLED

MATTRESS

GEOGRID

FABRIC,

TYP.

+5.0'

+6.0'

TOE OF BREAKWATER

SLOPE, TYP. (-1.5)

BREAKWATER CREST, TYP.

102.0' 10.0' 8.0'

EXCAVATE TO -2.0', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

STEM CREST, TYP.

EXCAVATE TO 0.0'

2' MIN, TYP.

15.0'

2' MIN, TYP.

77.0'

VERTICAL EXAGGERATION 5:1

CHINKING STONE.

INTERIOR OF

STRUCTURE ONLY

0.5' THICK

MATTRESS

EXISTING

GRADE

(05/25)

CHINKING STONE.

INTERIOR OF

STRUCTURE ONLY

BEACH FILL, TYP.

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

SECTIONS

(1)

ML 08/04/2025

ZB 08/04/2025

NOTES: 1. ELEVATIONS IN FEET RELATIVE TO NAVD88. ELEVATIONS IN FEET RELATIVE TO NAVD88. 2. DATE OF SURVEY: MAY 2025. DATE OF SURVEY: MAY 2025. 3. BEACH FILL TO BE CONSTRUCTED BY DREDGING CONTRACTOR BEACH FILL TO BE CONSTRUCTED BY DREDGING CONTRACTOR UNDER SEPARATE, EXISTING CONTRACT WITH TOWN. 4. FINAL DESIGN PLAN MAY BE ADJUSTED BASED UPON BEACH FINAL DESIGN PLAN MAY BE ADJUSTED BASED UPON BEACH CONDITIONS AT TIME OF CONSTRUCTION.

DISTANCE ALONG STRUCTURE (FEET)

SECTION S3-S3' (STRUCTURE S3)

3002001000

MHW = +2.82FT

MLW = -3.62FT

-100

DISTANCE ALONG STRUCTURE (FEET)

SECTION S4-S4' (STRUCTURE S4)

3002001000

MHW = +2.82FT

MLW = -3.62FT

-100

-50 50 150 250

-50 50 150 250 350

N (F

T-

) 10

-2

-4

-6

-8

-12

-10

N (F

T-

) 10

-2

-4

-6

-8

-12

-10

STONE-FILLED

MATTRESS

GEOGRID

FABRIC,

TYP.

+6.0'

TOE OF BREAKWATER

SLOPE, TYP. (-1.5)

BREAKWATER CREST, TYP.

102.0'

EXCAVATE TO 0.0'

2' MIN, TYP.

VERTICAL EXAGGERATION 5:1

CHINKING STONE.

INTERIOR OF

STRUCTURE ONLY

0.5' THICK

MATTRESS

EXISTING

GRADE

(05/25)

STONE-FILLED

MATTRESS

GEOGRID

FABRIC,

TYP.

+6.0'

TOE OF BREAKWATER

SLOPE, TYP. (-1.5)

BREAKWATER CREST, TYP.

102.0'

EXCAVATE TO 0.0'

2' MIN, TYP.

VERTICAL EXAGGERATION 5:1

CHINKING STONE.

INTERIOR OF

STRUCTURE ONLY

0.5' THICK

MATTRESS

EXISTING

GRADE

(05/25)

8.0'

EXCAVATE TO -2.0', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

EXCAVATE TO -2.0', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

10.0'15.0' 77.0'

+5.0'

10.0'15.0' 77.0'

STEM CREST, TYP.

BEACH FILL, TYP.

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

SECTIONS

(2)

ML 08/04/2025

ZB 08/04/2025

SECTION A-A' (S1)

MHW (+2.82)

SECTION B-B' (S2,S3,S4)

MHW (+2.82)

SECTION C-C' (S2,S3,S4)

1 MHW (+2.82)

SECTION D-D' (S5,S6)

1 MHW (+2.82)

+6.0

BEACH FILL

EXISTING ELEVATION

TO VARY AT TIME OF

CONSTRUCTION

STONE-FILLED

MATTRESS (SIZE 1)

8.0'

TYP

ARMOR STONE

+5.0

BEACH FILL

STONE-FILLED

MATTRESS (SIZE 2)

8.0'

TYP

ARMOR STONE

+6.0

BEACH FILL

STONE-FILLED

MATTRESS (SIZE 1)

8.0'

TYP

ARMOR STONE

+6.0 BEACH FILL

STONE-FILLED

MATTRESS (SIZE 1)

8.0'

TYP

ARMOR STONE

EXISTING GRADE,

VARIES, TYP.

2' MIN, TYP.

EXISTING ELEVATION

TO VARY AT TIME OF

CONSTRUCTION, TYP.

EXCAVATE TO -1.5', OR TO

LOWER LIMIT OF SAND.

WHICHEVER OCCURS FIRST.

CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY

MATERIALS.

EXCAVATE TO -2.0', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

EXCAVATE TO -2.0', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

EXCAVATE TO -2.0', OR TO

LOWER LIMIT OF SAND.

WHICHEVER OCCURS FIRST.

CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY

MATERIALS.

EXISTING ELEVATION

TO VARY AT TIME OF

CONSTRUCTION

EXISTING ELEVATION

TO VARY AT TIME OF

CONSTRUCTION

CHINKING STONE. INTERIOR

OF STRUCTURE ONLY, TYP.

CHINKING STONE. INTERIOR

OF STRUCTURE ONLY, TYP.

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

SECTIONS

(3)

ML 08/04/2025

ZB 08/04/2025

MHW (+2.82)

SECTION E-E' (S5)

SECTION F-F' (S6)

+6.0

85.0'

BEACH FILL

EXISTING ELEVATION

TO VARY AT TIME OF

CONSTRUCTION

+6.0

75.0'

BEACH FILL

EXISTING ELEVATION

TO VARY AT TIME OF

CONSTRUCTION

STONE-FILLED

MATTRESS (SIZE 1)

STONE-FILLED

MATTRESS (SIZE 1)

EXISTING GRADE,

VARIES (05/25)

EXISTING GRADE,

VARIES (05/25)

2' MIN, TYP.

EXCAVATE TO -2.0', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

EXCAVATE TO -2.0', OR TO LOWER

LIMIT OF SAND. WHICHEVER OCCURS

FIRST. CONTRACTOR SHALL NOT

EXCAVATE INTO CLAY MATERIALS.

BREAKWATER CREST

CHINKING STONE.

INTERIOR OF

STRUCTURE ONLY

CHINKING STONE.

INTERIOR OF

STRUCTURE ONLY

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

BREAKWATER

SECTIONS

(4)

ML 08/04/2025

ZB 08/04/2025

GEOGRID LIFTING HOOP

STONE FILL

TRITON BX MARINE MATTRESS

NOT TO SCALE

GEOTEXTILE FABRIC

ATTACHED TO BOTTOM

OF MATTRESS

ALL CUT ENDS OF BRAIDED MATERIAL SHALL BE KNOTTED WITHIN 1/2" TO 2" OF THE END TO

PREVENT UNRAVELING OF BRAID

AT ALL ENDS OF ALL BRAIDED SEAMS THE BRAID SHALL BE SECURELY KNOTTED TO THE

GEOGRID.

AT ALL ENDS OF THE PIECES OF BRAID MATERIAL USED, THE BRAID SHALL BE KNOTTED TO

SPLICE IT TO THE NEXT PIECE OF BRAID, OR TO SECURE IT TO THE GEOGRID. EACH BRAIDED

SEAM SHALL BE CONTINUOUS, WITH SECURELY KNOTTED SPLICES ALLOWED. THE BRAID

SHALL BE SECURELY KNOTTED TO THE GEOGRID AT A SPACING NOT TO EXCEED 6 FT ALONG

ANY SEAM.

THE BRAID SHALL BE STITCHED THROUGH EACH PAIR OF APERTURES ALONG THE SEAM AT

LEAST ONCE, AND THE MINIMUM NUMBER OF STITCHES PER FOOT ALONG THE SEAM SHALL

BE SIX (6). THE SPACING OF STITCHES ALONG EACH SEAM SHALL BE REASONABLY UNIFORM.

ALL KNOTS SHALL BE TIED IN A MANNER TO PREVENT SLIPPING AND CINCHING.

THE WRAPS ALONG THE SEAM SHALL BE SUFFICIENTLY TIGHT TO CLOSE THE GAP BETWEEN

THE ADJACENT PIECES OF GEOGRID BUT SHALL NOT BE OVERTIGHTENED SUCH THAT THE

GEOGRID BINDS ALONG THE SEAM.

BRAID

GEOGRID

NOT TO SCALE

NOTES:

TYPICAL END VIEW OF MARINE MATTRESS

WITH GEOTEXTILE UNDERATTACHMENT

TYPICAL SIDE VIEW OF MARINE MATTRESS

6.5 FT

VARIES, 18-22 FT

BRAIDED SEAMS

METAL FASTENERS 24" O.C.

TO SECURE FABRIC ACROSS

BOTTOM OF THE MATTRESS (TYP)

NOTE:

GEOTEXTILE STRIPS SHALL BE PRE-CUT, POSITIONED AND SECURED TO THE

BOTTOM OF THE MATTRESSES IN THE INITIAL FABRICATION STAGE.

TOP TRIMMED AND

SEAMED TO SIDE AT

TOP CORNER

6" (FILLED)

TOP TRIMMED AND

SEAMED TO SIDE AT

TOP CORNER GEOGRID EXTENSION

WITH GEOTEXTILE

FABRIC ATTACHED

2 FT MIN.

GEOGRID EXTENSION

WITH GEOTEXTILE

FABRIC ATTACHED2 FT, TYP.

METAL FASTENERS 12 IN O.C.

TO SECURE GEOTEXTILE FABRIC

AROUND THE PERIMETER

OF THE MATTRESS/EXTENSION (TYP)

NOT TO SCALE

X X X X X

X X X X X X X X X X X X X X X X X X X X X X

X X X X

2 FT MIN.

INNER

BAFFLES

NOTES:

GEOTEXTILE FABRIC SHALL BE SECURELY ATTACHED TO THE BOTTOM

OF EACH MATTRESS USING METAL FASTENERS ON 12" CENTERS

AROUND THE PERIMETER OF THE MATTRESS AND EXTENSION.

GEOTEXTILE FABRIC SHALL BE SECURELY ATTACHED TO THE BOTTOM

OF EACH MATTRESS USING METAL FASTENERS ON 24" CENTERS ACROSS

THE BOTTOM WIDTH OF THE MATTRESS.

GEOTEXTILE FABRIC SHALL COVER THE BOTTOM OF THE MATTRESS AND

THE 2' GEOGRID EXTENSION.

SEAMS IN THE FABRIC SHALL BE OVERLAPPED BY 9" MINIMUM AND

THERMALLY WELDED TO FORM A SECURE BOND BETWEEN THE

ADJOINED PIECES.

6.5 FT 2 FT

VARIES

18-22 FT

2 FT

X X X X X X X X X X X

XXXXXXXXXX X

X X

X X X X X X X X X

GEOGRID

MARINE MATTRESS

GEOTEXTILE FABRIC

2-FT GEOGRID/

FABRIC

EXTENSION

METAL FASTENERS

12" O.C. AROUND THE

BOTTOM PERIMETER

OF MARINE MATTRESS

GEOGRID MARINE MATTRESS

METAL FASTENERS

24" O.C. ACROSS THE BOTTOM

OF THE MATTRESS

(INTERIOR TO THE PERIMETER

OF MARINE MATTRESS)

GEOGRID/FABRIC EXTENSION

NOT TO SCALE

X X X

ABUT ADJACENT

MATTRESSES

ATOP EXTENSION

THIS PORTION OF GEOGRID/FABRIC EXTENSION TO BE PLACED

ALONG INTERIOR OF STRUCTURE FOOTPRINT (TYP.)

VARIES

6.5 FT

12 FT

VARIES 18-20FT,

EACH ± 5.5"x6.5 FT, AT 2 FT SPACINGS

TO FORM ENDS AND BAFFLES

NOTE: ENDS, SIDES, AND BAFFLES ARE SIZED SLIGHTLY LESS THAN THE 6-INCH NOMINAL THICKNESS

OF THE FILLED MATTRESS, IN ORDER TO ALLOW THE TOP TO BE SEAMED DOWN MORE TAUT

AGAINST THE STONE FILL.

BRAIDED SEAM

(FOR BOX-UP STAGE)

ALL END AND BAFFLE

PIECES SEAMS TO

MAIN PIECE OF GRID

± 6

.5 FT

± 5 .5" (T

YP)

NOT TO SCALE

SPLICE

POINT

DISTANCE APPROX. EQUAL TO MAT LENGTH

TYPICAL TWO-ENDED LIFT

6.5 FT 6 IN

RIGGING

AND STEEL

LIFTING BAR

GEOGRID

LIFTING

HOOP

LIFTING BAR, RIGGING AND HANDLING MUST BE SUITABLE

TO DISTRIBUTE THE LIFTING LOADS UNIFORMLY TO THE

GEOGRID. LIFTING APPARATUS TO BE PROPOSED BY

CONTRACTOR. HANDLING AND LIFTING OF GRID MATERIALS

AND MATTRESSES SHALL BE AVOIDED WHEN THE AMBIENT

TEMPERATURE IS LOWER THAN 5 DEGREES BELOW ZERO,C.

STONE-FILLED COMPARTMENTS SHALL BE FORMED BY USE

OF INTERNAL BAFFLES ACROSS EACH MAT AT A MAXIMUM

SPACING OF APPROXIMATELY 2 FEET.

ALL EXTERIOR SIDES AND INTERIOR BAFFLES AND LIFTING

HOOPS SHALL BE FORMED WITH TENSAR BX150060 GRID, OR

MANUFACTURE'S EQUIVALENT.

SEE THE PROJECT SPECIFICATIONS REGARDING STONE FILL

MATERIALS.

FILLING SHALL BE ACCOMPLISHED SUCH THAT THE

AVERAGE THICKNESS OF EACH MATTRESS DOES NOT

EXCEED 6 INCHES.

NOT TO SCALE

TYPICAL

ONE-ENDED

LIFT

SPREADER BEAM

NOTES:

VARIES

18-22 FT

B R

W A

P R

C T

N O

F H

N H

, S C

PROJECT NO:

CHECKED

DESIGNED

DRAWN

SURVEYED

BY DATE

DATE OF PREPARATION

N O

E D

N S

SHEET NUMBER

SHEET TITLE:

ISSUANCE:

1 2 3 4 5

PE STAMP (COA 4194)

BID SET

0025H031

MATTRESS

DETAILS

ML 08/04/2025

ZB 08/04/2025

Typical Lock-Stitch Braiding Configuration for Mattress Fabrication Typical Mattress and Geotextile Attachment Details Typical Mattress Lifting Methods

Typical Configuration of Stone Filled Mattress with Lifting Hoop Typical Mattress and Geotextile Attachment Details Typical Marine Mattress Unit After Initial Fabrication

NOTES: 1. ELEVATIONS IN FEET RELATIVE TO NAVD88. ELEVATIONS IN FEET RELATIVE TO NAVD88. 2. HORIZONTAL POSITIONS IN SC STATE PLANE (NAD83, INT'L FEET) HORIZONTAL POSITIONS IN SC STATE PLANE (NAD83, INT'L FEET) 3. DATE OF SURVEY: OCT 2024.DATE OF SURVEY: OCT 2024.

File details come from the government source that posted it. Updated May 1, 2026.