A21 - RTA_LOCKED_FY27 AIWW Maintenance Dredging_Sig.pdf
PDF 14 MB Posted
- Solicitation number
- GROUP1-24-R-W001
About this file
This is a Ready to Advertise (RTA) solicitation set for Atlantic Intracoastal Waterway maintenance dredging in North Carolina under Solicitation No. GROUP1-24-R-W001, issued July 2026 by the US Army Corps of Engineers. The contract number is TBD.
The solicitation encompasses maintenance dredging operations across multiple sections of the Atlantic Intracoastal Waterway in North Carolina, with dredged material placement at designated beach and upland sites. Primary work areas include Section 2 Tangent F (Onslow Beach placement), Section 2 Tangent I & J (North Topsail Beach and Mile Hammock Bay placements), and CFR-LR Tangent 11 (Lockwood's Folly Widener option and Oak Island Beach placement). Additional optional areas include Mile Hammock Bay placement and confined upland sites at Marine Corps Base Camp Lejeune. Dredging depths vary by location, with required channel maintenance depths of 12 feet for most areas and 3 feet allowable overdepth. Beach placement berms range from 100 to 200 feet wide, with material placed to elevation +6.0 feet NAVD 88. The contractor must provide 90 calendar days' notice prior to dredging commencement and coordinate with the Contracting Officer's Representative, North Carolina Wildlife Resources Commission, and USMC Range Control for operational approvals. Environmental windows restrict work on beach areas between April 1 and March 31 to protect nesting shore birds and sea turtles. All contractor operations must avoid damage to existing structures, with restoration required at contractor expense. The solicitation includes detailed hydrographic surveys, placement area specifications, pipeline routing requirements, and provisions for dewatering operations at confined upland sites.
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SOLICITATION NO.:
CONTRACT NO.:
ISSUE DATE:
US Army Corps of Engineers ®
Approval Recommended: *
Approved: *
DATE
DATE
SIGNATURES AFFIXED BELOW INDICATE OFFICIAL RECOMMENDATION
AND APPROVAL OF ALL DRAWINGS IN THIS SET AS INDEXED ON SHEET GI01.
CHIEF, ENGINEERING BRANCH
* THIS PROJECT WAS DESIGNED BY THE U.S. ARMY CORPS OF ENGINEERS,
WILMINGTON DISTRICT. INDIVIDUALS WHOSE SIGNATURES AND REGISTRATION
DESIGNATIONS APPEAR ON THESE DOCUMENTS ARE OPERATING WITHIN THE
SCOPE OF THEIR EMPLOYMENT. SIGNATURES ARE REQUIRED BY ER 1110-1-8152.
CHIEF, DESIGN and GENERAL ENGINEERING SECTION
GROUP1-24-R-W001
JULY 2026
TBD
ATLANTIC INTRACOASTAL WATERWAY
MAINTENANCE DREDGING
FY27 CONTRACT
NORTH CAROLINA
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BROCKEL.MICHAE
L.JOHN.161078643
Digitally signed by
BROCKEL.MICHAEL.JOHN.1610
786436 Date: 2026.07.22 14:07:07 -04'00'
Digitally signed by
MURPHY.TAMARA.C.138632224
Date: 2026.07.22 14:29:15 -04'00'
INDEX OF DRAWINGS
SHEET NO. TITLE
G001 COVER SHEET
GI001 INDEX OF DRAWINGS
CN101 ONSLOW BEACH PLACEMENT
CN102 SECTION 2 TANGENT F
CN103 NORTH TOPSAIL BEACH PLACEMENT
CN104 SECTION 2 TANGENT I
CN105 SECTION 2 TANGENT J
CN106 OAK ISLAND BEACH PLACEMENT
CN107 CFR-LR TANGENT 11 AND LOCKWOOD'S FOLLY WIDENER (OPTION)
CN108 MILE HAMMOCK BAY PLACEMENT (OPTION)
CN109 MILE HAMMOCK BAY PLACEMENT DETAILS (OPTION)
CN110 MILE HAMMOCK BAY (OPTION)
R-1 REFERENCE SHEET 1
R-2 REFERENCE SHEET 2
SECTION 2 TANGENT F
ONSLOW BEACH PLACEMENT
CFR-LR TANGENT 11
LOCKWOOD'S FOLLY WIDENER (OPTION)
OAK ISLAND BEACH PLACEMENT
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SECTION 2 TANGENT I &J
NORTH TOPSAIL BEACH PLACEMENT
MILE HAMMOCK BAY (OPTION)
MILE HAMMOCK BAY PLACEMENT AREA (OPTION)
3000.00'
+0
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SLOPE INTERCEPT
N.T.S.
SLOPE
INTERCEPT
EXISTING GROUND
N.T.S.
TRANSITION DETAIL - PLAN VIEW
TOP OF BERM +6.0' NAVD 88
TIE INTO EXISTING
6' NAVD 88 CONTOUR
OR EXISTING GROUND
ELEVATION
500'
TIE INTO EXISTING
6' NAVD 88 CONTOUR
OR EXISTING GROUND
ELEVATION
500'
MIN. 100' WIDE
CONSTRUCTION
BERM
MIN. 100' WIDE
CONSTRUCTION
BERM
MIN. 100'
TYPICAL BEACH PLACEMENT SECTION
3000' APPROXIMATE LIMITS OF PLACEMENT AREA
1. THE PIPELINE ROUTE SHOWN IS APPROXIMATE. PRIOR TO PLACEMENT OF PIPE, CONTRACTOR SHALL MEET ON SITE 15 CALENDAR DAYS BEFORE WORK IS TO BEGIN WITH THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE AND A REPRESENTATIVE OF THE NORTH CAROLINA WILDLIFE RESOURCES COMMISSION TO DETERMINE THE EXACT PIPELINE ROUTE.
2. THE EXACT BEGINNING POINT FOR PLACEMENT OF DREDGED MATERIAL ON THE BEACH WILL BE ESTABLISHED BY THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE
IMMEDIATELY PRIOR TO START OF DREDGING AND BEACH PLACEMENT OPERATIONS.
3. PHOTOGRAPHY DATE: APRIL 14, 2025 © MAXAR TECHNOLOGIES.
4. HORIZONTAL DATUM NC SP NAD83 (2011).
5. VERTICAL DATUM NAVD88. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING VERTICAL CONTROL PRIOR TO PLACEMENT OF DREDGED MATERIAL IN DESIGNATED PLACEMENT AREA.
6. FOR DETAILS OF AREA TO BE DREDGED, SEE SHEETS CN102.
7. THE AREA TO BE DREDGED IN SECTION 2 TANGENT F AND THE PIPELINE ROUTE ARE WITHIN THE HIGHLY ACTIVE GROUND AND AIR TO GROUND FIRING RANGES OF THE U.S. MARINE CORPS. SPECIAL CONTRACTOR REQUIREMENTS FOR WORKING IN THIS AREA ARE PROVIDED IN PARAGRAPHS "ORDER OF WORK", AND "NAVAL FIRING EXERCISES" OF SECTION 35 20 23 OF THE SPECIFICATIONS.
8. IF UNEXPLODED ORDNANCES ARE ENCOUNTERED THE CONTRACTOR SHALL FOLLOW SECTION 35 20 23 PARAGRAPH "UNEXPLODED ORDNANCE" AND CONTACT CAMP LEJEUNE EOD TEAM AT
(910)-451-3064 EXT. 4449.
9. THE CONTRACTOR MUST START PLACING DREDGED MATERIAL AT THE EAST END OF THE DESIGNATED PLACEMENT AREA AS DETERMINED BY THE ONSITE PIPELINE ROUTE MEETING IN NOTE 1. THE BERM WIDTH WILL BE BASED ON THE BEFORE DREDGE SURVEY DATA, AND PLACEMENT WILL CONTINUE DOWN THE BEACH AS FAR AS THE DREDGED MATERIAL WILL ALLOW.
10. ONSLOW BEACH IS CONSIDERED SUITABLE NESTING HABITAT FOR SHORE BIRDS AND SEA TURTLES. ALL WORK ON THE BEACH INCLUDING EQUIPMENT REMOVAL SHALL BE COMPLETED BY 30 APRIL 2027. SEE PARAGRAPH ENVIRONMENTAL WINDOWS OF SECTION 01 57 19 OF THE SPECIFICATIONS FOR ENVIRONMENTAL WINDOWS AND RESTRICTIONS.
11. PRIOR TO COMMENCEMENT OF DREDGING AND PLACMENT OPERATIONS, THE CONTRACTOR MUST COMPLETE THE FOLLOWING:
11.1. PROVIDE A MINIMUM OF 90 CALENDAR DAYS NOTICE TO COORDINATE SCHEDULING WITH THE CONTRACTING OFFICER, CONTRACTING OFFICER REPRESENTATIVE (COR), AND USMC RANGE
CONTROL.
11.2. MEET ON SITE WITH THE CONTRACTING OFFICER'S REPRESENTATIVE NO LESS THAN 15 CALENDAR DAYS PRIOR TO COMMENCEMENT OF DREDGING TO OBTAIN APPROVAL OF THE PIPELINE
ROUTE TO THE PLACEMENT AREA AND INITIAL DISCHARGE POINT.
12. ACCESS BY MARINE CORPS BASE CAMP LEJEUNE (MCBCL) GATE MUST HAVE BASE ACCESS CLEARANCE. IN LIEU OF BASE ACCESS CLEARANCE, EQUIPMENT CAN BE BARGED INTO BROWN'S INLET.
CONTRACTOR SHALL COORDINATE WITH COR IF CHOOSING TO BARGE EQUIPMENT
13. CONTRACTOR SHALL POST SIGNS AND TEMPORARY FENCES IN AND AROUND ACTIVE ONSHORE WORK AREAS IN ACCORDANCE WITH SPECIFICATION 01 35 26.
14. CONTRACTOR SHALL CONTACT THE CONTRACTING OFFICER REPRESENTATIVE 5 BUSINESS DAYS IN ADVANCE FOR FINAL BEACH INSPECTION
15. SURVEYS FOR PLACEMENT ARE REQUIRED PER SPECIFICATION SECTION 02 21 00.
16. NATURAL SLOPE FOR BEACH PLACEMENT IS DEFINED AS SLOPE RESULTING FROM THE EFFECTS OF WAVE AND WATER LEVEL CONDITIONS.
NOTES
AREA TO BE DREDGED
LEGEND
ONSLOW BEACH
SECTION 2 TANGENT F
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APPROXIMATE LOCATION OF PIPELINE ROUTE
SCALE 1"=500'
APPROXIMATE LIMITS OF PLACEMENT AREA
FILL MATERIAL SHALL BE PLACED DOWN THE BEACH AT THE
DESIGNATED BEACH PLACEMENT WIDTH UNTIL MATERIAL TO BE
DREDGED IS EXHAUSTED. WIDTH OF TYPICAL BEACH PLACEMENT
SECTION MAY BE ADJUSTED AT THE DISCRETION OF THE C.O.R..
APPROXIMATE BEGINNING POINT
FOR BEACH PLACEMENT
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-12
-14
-12
-13
-13
-15
-10
-11 9
-9
-13
-10
-11 4
-11 4
-10
-10
-14
-11 6
-8
-10
-13
-13
-6
-7
-10
-3
-13
-15
-12
-12
-11 7
-13
-7 0-4
-11 0
-12
-9 4-13
-11 6
-9
-11 3
-16
-15
-9
-15
-12
-9
-12
-11 5
-14
-15
-16
-12
-12
-10
-12
-12
-12
-14
-12
-4
-14
-13
-11 1
-12
-14
-12
-12
-15
-15
-11 9
-10
-13
-10
-11 5
-3
-12
-10
-11 8 -11 5
-7
-13
-9
-13
-10
-15
-12
-13
-12
-16
-10
-11 8
-8
-10
-14
-16
-17
-12
-14
-12
-12
-13
-12
-6
-11 2
-13
-12
-12
-10
-14 9-12
-12 7-9
-11 5
-11 7
-13 2 -14
-13
-8
-14
-12
-12
-10
-11 8
-11 2 -15
-11 2
-14
-11 4
-10
-14
-10
-8
-12
-14
-11 2
-4
-10
-12
-10
-13
-10
-13
-14
-11 5
-9
-14
-10
-8 7-12
-14
-11 6-12
-10
-14
-12
-11 7
-12
-10
-9
-13
-10
-10
-14 3-10
-10
-13
-13
-11 7
-13
-10
-16
-10
-10
-7
-12
-9
-15
-10
-10
-12
-8
-16
-12
-12
-9
-11 2
-13
-9
-9
-10
-14
-12
-3
-12
-14
-10
-10
-8
-12
-11 1
-13
-15
-15
-12
-11 8
-14
-16
-13
-13
-12
-16
-12
-11 1
-10
-13
-13
-13
-4
-13
-14
-12
-14
-9
-12
-12
-7
-11 1
-16
-16
-15
-15
-12
-11 1
-10
-12
-14
-10
-10
-11 6
-11 7
-13
-10
-14
-10
-14
-14 8-8
-10
-11 0
-9
-12
-14
-13
-15
-14
-6 6 -10
-12
-8
-8
-10
-13
-12
-13
-15
-8
-11 5
-12
-12
-10
-11 0
-11 9
-11 2
-12
-9
-15
-15
-13
-14
-15
-11 9
-11 3
-12
-14
-12
-13
-11 6
-11 5
-14
-8
-13
-13
-16
-8
-12
-9
-13
-13
-15
-10
-14 6-11 8
-7
-12
-12
-14
-12
-10
-15
-6
-12
-12
-12
-16 1-9
-12
-12
-9
-9
-10
-12
-11 5
-10
-10
-10
-14
-12
-10
-14
-10
-14
-9
-14
-12
-15
-12
-11 1
-14
-12
-10
-13
-9
-14
-13 5-11 6
-13
-10 9-12
1 -13
-12
-14
-15 7 -14
-14
-14
-10
-14
-9
-13
-14
-11 1
-12
-14
-9
-13
-13
-11 0
-17
-10
-16
-11 8
-13
-14
-9
-14
-13
-10
-10
-13
-14
-13
-12
-13
-14
-10
-10
-13
-13
-13
-10
-12
-12
1. SOUNDINGS ARE EXPRESSED IN FEET AND REFER TO NOAA'S REPORTED MEAN LOWER LOW
WATER (MLLW) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
2. PROJECT SURVEYED 6 NOVEMBER 2025 WITH DISTRICT SURVEY VESSEL "ROGERS", USING RTK
GPS HORIZONTAL POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
3. TIDE GAGE LOCATED AT: LT DM 61
4. HORIZONTAL DATUM NC SP NAD83 (2011). VERTICAL DATUM MLLW.
5. INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULTS OF SURVEYS MADE ON THE
DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS
EXISTING AT THAT TIME.
6. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS ONSLOW BEACH.
SEE SHEET CN101 FOR DETAILS.
7. THE GOVERNMENT SHALL NOT BE LIABLE FOR THE CONTRACTOR'S FAILURE TO PROPERLY
PREPARE TO DEAL WITH THE EXISTING GEOLOGIC CONDITIONS AT EACH DREDGING AREA. THE
GOVERNMENT DOES NOT GUARANTEE THAT BORINGS INDICATE ACTUAL CONDITIONS, EXCEPT
FOR THE EXACT LOCATIONS AND THE TIME THAT THEY WERE MADE.
8. NAVIGATION AIDS LOCATED BY SURVEY VESSEL, ACCURACY +/- 3 METERS.
EASTING AND NORTHING COORDINATES ARE IN FEET.
DESCRIPTION EASTING NORTHING
BUOY 60 2,529,062.76 313,290.78
BUOY 61A 2,528,960.50 313,137.60
BUOY 62 2,528,345.28 312,661.29
BUOY 63 2,528,550.90 312,539.05
NOTES
LEGEND
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
TYPICAL DREDGING SECTION
(TYP)
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
90'
TYPICAL DREDGING SECTION
NOT TO SCALE
(TYP)
SECTION 2 TANGENT F
FEET
3001500 75
SCALE 1"=150'
FY
A
IW
W _S ec tio n
Ta ng en t F
.d w g
SE
C
TI
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AN
G
EN
T F
CN102
CHANNEL PRISM LINE
CHANNEL CENTERLINE
CHANNEL PRISM LINE
CHANNEL CENTERLINE
US Army Corps of Engineers
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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APPROXIMATE BEGINNING POINT
FOR BEACH PLACEMENT
N: 286128.67 E: 2498131.71
Feet
200010000 500
N O
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SLOPE
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SLOPE INTERCEPT
N.T.S.
100'
EXISTING GROUND
N.T.S.
TRANSITION DETAIL
500' 500'
TOP OF BERM +6.0' NAVD 88
6' 6' 6' 6'
TYPICAL BEACH PLACEMENT SECTION
2500' APPROXIMATE LIMITS OF BEACH PLACEMENT AREA
LENGTH WILL BE DETERMINED
DURING CONSTRUCTION AND WILL
BE DEPENDANT ON QUANTITY OF
MATERIAL PLACED ON BEACH
100'-200' WIDE
CONSTRUCTION
BERM
100'-200' WIDE
CONSTRUCTION
BERM
TIE INTO EXISTING
6' NAVD 88 CONTOUR
TIE INTO EXISTING
6' NAVD 88 CONTOUR
1. PHOTOGRAPHY DATE: NOVEMBER 10, 2025 © 2025 VANTOR. DUE TO AGE OF PHOTOGRAPHY, PIPELINE ROUTE IS APPROXIMATE. THE CONTRACTOR SHALL NOTIFY THE TOWN OF NORTH TOPSAIL BEACH NO LESS THAN 15 DAYS PRIOR TO COMMENCEMENT OF PIPELINE PLACEMENT. POINT OF CONTACT WITH THE TOWN OF NORTH TOPSAIL BEACH IS ALICE DERIAN, TOWN MANAGER PHONE No.: 910-581-4026.
2. AT LEAST 15 DAYS PRIOR TO THE PLACEMENT OF PIPE, THE CONTRACTOR SHOULD MEET ON SITE WITH THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE AND A REPRESENTATIVE OF THE NORTH CAROLINA WILDLIFE RESOURCES COMMISSION TO DETERMINE THE EXACT PIPELINE ROUTE. AS PIPELINE IS BEING LAID, CONTRACTOR SHALL CONSTRUCT RAMPS WHERE NECESSARY TO ALLOW PASSAGE OF VEHICLES OVER PIPELINE; THIS INCLUDES BUT IS NOT
LIMITED TO, ALL DRIVEWAYS FOR HOMEOWNERS.
3. VERTICAL DATUM NAVD88. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING HORIZONTAL AND VERTICAL
CONTROL PRIOR TO PLACEMENT OF DREDGED MATERIAL IN THE DESIGNATED PLACEMENT AREA.
4. HORIZONTAL DATUM NAD 1983.
5. FOR DETAILS OF AREAS TO BE DREDGED, SEE SHEETS CN104 AND CN105.
6. THE CONTRACTOR SHALL BEGIN PLACEMENT OF DREDGED MATERIAL ON THE BEACH IN THE VICINITY OF THE INTERSECTION OF RIVER DRIVE AND NEW RIVER INLET ROAD. DUE TO ONGOING CHANGES TO THE SHORELINE CAUSED BY OCEAN WAVES, THE EXACT BEGINNING POINT FOR PLACEMENT OF DREDGED MATERIAL WILL BE ESTABLISHED BY THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE IMMEDIATELY PRIOR TO THE START OF DREDGING AND PLACEMENT OPERATIONS. PLACEMENT OF THE 100-FOOT WIDE BERM SHALL CONTINUE DOWN THE BEACH AS FAR AS
THE QUANTITY OF DREDGED MATERIAL WILL ALLOW.
7. ALL CONTRACTOR OPERATIONS SHALL BE PERFORMED IN A MANNER THAT AVOIDS DAMAGE TO EXISTING SANDBAGS, STRUCTURES AND ROADS. SANDBAGS, STRUCTURES AND ROADS DAMAGED BY CONTRACTOR OPERATIONS SHALL BE REPAIRED TO THE SATISFACTION OF THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE AT NO COST TO THE GOVERNMENT OR TO THE OWNERS OF THE DAMAGED PROPERTY. TO MINIMIZE THE RISK OF DAMAGE, WHEELED OR TRACKED EARTH MOVING EQUIPMENT SHALL NOT WORK CLOSER THAN 10 FEET FROM STRUCTURES DURING ALL WORK INCLUDING DISTRIBUTION AND MOVEMENT OF BEACH FILL MATERIAL. EXISTING SANDBAGS BELOW ELEVATION 5 FEET THAT LIE WITHIN THE BEACH FILL LIMITS SHALL BE COVERED WITH FILL EXCEPT EXISTING SANDBAGS AT TOPSAIL REEFS SHALL NOT BE COVERED. IN AREAS WHERE IT IS NOT POSSIBLE TO TIE INTO THE 5-FOOT CONTOUR, THE CONTRACTOR
SHALL CONSTRUCT THE BACKSLOPE TO THE NATURAL ANGLE OF REPOSE.
8. NORTH TOPSAIL BEACH AND THE INLET BEACH ARE CONSIDERED SUITABLE HABITAT FOR SHORE BIRDS AND SEA TURTLES.
ALL WORK ON THE BEACH INCLUDING PIPE REMOVAL SHALL BE COMPLETED BY 30 APRIL 2027. SEE PARAGRAPH ENVIRONMENTAL WINDOWS OF SECTION 01 57 19 OF THE SPECIFICATIONS FOR ENVIRONMENTAL WINDOWS AND
RESTRICTIONS. NO ENVIRONMENTAL WINDOW EXTENSION WILL BE GRANTED.
9. NATURAL SLOPE FOR BEACH PLACEMENT IS DEFINED AS SLOPE RESULTING FROM THE EFFECTS OF WAVE AND WATER
LEVEL CONDITIONS.
NOTES
SECTION 2 TANGENT J
SECTION 2 TANGENT ISE
CT
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N
TA
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EN
T
NORTH TOPSAIL BEACH
N
EW
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IVER
IN
LET
SECTION 2
TANGENT H
SECTION 2 TANGENT G
SECTION 3 TANGENT 2
SECTION 3 TANGENT 3A
APPROXIMATE PIPELINE ROUTE
AREA TO BE DREDGED
LEGEND
SCALE 1"=1000'
2500'APPROXIMATE LIMITS OF PLACEMENT AREA FILL MATERIAL SHALL BE PLACED
DOWN THE BEACH AT THE DESIGNATED BEACH PLACEMENT WIDTH UNTIL
MATERIAL TO BE DREDGED IS EXHAUSTED. WIDTH OF TYPICAL BEACH
PLACEMENT SECTION MAY BE ADJUSTED AT THE DISCRETION OF THE C.O.R.
FY
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P la ce m en t.d w g
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CN103
BERM WIDTH SHALL BE 200'
WIDE EAST OF 2264 NEW RIVER
INLET RD AND 100' WIDE WEST
OF 2264 NEW RIVER INLET RD.
N: 296640.57 E: 2497174.88
N: 296553.16 E: 2497148.11
N: 296677.24 E: 2496742.89
N: 296499.76 E: 2496282.79
N: 296940.52 E: 2496194.16
CHANNEL PRISM LINE
85+0090+0095+00100+00105+00109+97.43
-16 3
-3 0
-9 2
-11 0
-12 6
-14 7 -18 1
-10 6
-9 8
-14 2
-14 6
-10 5
-7 5
-13 6
-19 2
-21 1
-13 5
-10 1
-5 8
-20 0
-8 6
-3 4
-12 8
-13 7
-15 5
-12 7
-16 7
-6 5
-16 3
-14 5
-12 4
-21 2
-15 3
-11 2
-14 1
-14 0
-11 7
-7 3
-11 2
-13 7
-9 4
-2 4
-6 5
-10 2
-13 8 -13 5
-9 3
-8 0
-4 4
-6 9
-13 8
-13 6
-11 0
-9 2
-14 3 -11 8
-15 2
-3 1 -12 4
-2 9
-13 7
-15 1
-20 1
-6 2
-3 5
-10 3
-18 6
-7 3
-20 2
-12 7
-19 0
-17 7
-3 9
-9 2
-7 5
-4 2
-8 8
-7 1
-8 1
-11 5
-13 2
-13 0
-13 5
-9 1
-3 6
-2 8
-16 6
-20 3
-15 2
-14 8
-2 9
-12 1
-15 2
-11 1
-6 8
-13 0
-11 2
-5 8-7 1
-13 6
-12 1
-13 9
-15 1
-15 5
-14 1
-11 4
-16 4
-6 0
-19 6
-13 8
-6 6
-13 1 -11 6
-16 3
-15 0
-13 2
-19 1
-18 2
-11 4-11 6
-9 3
-16 0
-10 6
-14 2
-11 7
-10 2
-11 8
-13 8
-14 1
-12 1
-10 1
-11 9
-11 4
-10 8
-11 5
-9 3
-8 5
-13 7
-20 3
-13 5
-14 2
-11 0
-10 8
-8 4
-19 4
-12 7
-2 5
-15 4
-15 9
-12 6
-19 0
-10 3
-7 4
14 8
-16 0
-5 1
-10
-13 5
-10 7
-10 4
-16 8
-18 4
-10 9
-6 5
-6 8
-12 8
-10 1
-7 6
-13 8
-10 2
-4 6
-13 6
-5 6
-21 1
-7 3
6 8
-11 5
-16 8
-5 9
-14 6
-17 9
-13 6
-15 1
-13 7
-7 5
-17 1
-9 5
-6 4
-12 6
-14 0
-13 7
-6 9
-20 0
-11 4
18 8
-10 6
-11 6
-5 1
-14 5
-18 8
-9 9
-10 6
-9 3
-18 1
-3 3
-9 9
-8 1
-12 1
-11 6
-13 8
-11 0
-7 2
-10 1
-15 0
-9 5
-9 0
-13 5 -13 6
-13 7
-15 1
-9 3
-14 2
-10 9
-12 3
-16 7
-16 1
-12 9
-6 8
-8 8
-8 9
-10 8
-11 7
-11 6
-8 5
-13 4
-8 4
-12 6
-10 0
-12 7
-11 1
-8 3
-17 2
-8 1
-13 5
-11 2
-16 3
-11 2
-8 3
-11 9
-14 5
-13 0
-8 2
-15 0
-11 9
-15 2
-13 3
-5 9
-5 5
-10 1
-14 5
-8 8
-16 3
-12 6
-11 7
-11 8
-4 2
-15 4
-17 2
-12 1-12 4
-8 8
-16 8
-6 2
-13 5
-12 6
-7 5
-11 3
-18 9
-5 3
-19 9
-12 5
-18 6
-9 0
-8 7
-6 4
-13 3
-10 4
-13 2
-6 4
-9 3
-12 0
-7 3
-15 8
-6 4
-12 0
-13 3
-6 1
-17 9
-3 7
-4 4
-14 5
-18 6
-15 9
-9 4
-9 2
-13 0
-7 4
-7 6
-9 5
-3 2
-3 0
-20 7
-7 4
-15 7
-8 7
-8 9
-13 4
-9 7
-13 2
-7 6
-8 1
-12 1
-10 8
-6 2 -19 3
-7 1
-12 1
-4 1
-13 0
-10 5
-4 9
-7 4
-12 5
-12 2
-14 2
-13 2
-9 3
-3 7
-20 5
-10 2
-16 6
-10 5
-11 2
-13 8
-19 1
-9 5
-18 5
-12 9
-10 8
-11 4
-11 2
-18 1
-10 9 -12 9
-16 4
-12 0 -11 9
-13 6
-18 0
-9 9
-5 8
-15 2
-11 3
-10 2
-7 4
-11 3
-6 3
-9 9
-11 2
-3 5
-9 8
-9 5
-11 1
-10 8
-6 9
-7 7
-6 9 -11 2 -4 9
-7 0
-6 7
-7 7
-4 5
-16 8
-11 5
-10 4
-10 2
-16 2
-11 3
-18 4
-7 7
-7 0
-10 8
-19 8
-8 1
-7 8
-16 2
-9 9
-9 8
-14 2
-9 2
-15 8
-8 3
-18 4
-5 2
-12 4
-6 9
-11 8
-12 9
-15 4
-11 0
-4 3
-5 8
-4 1
-18 2
-14 0
-13 7
-9 6
-15 4
-10 6
-13 4
-18 9
-10 3
-13 1
-12 1
-13 8
-12 0
-7 8
-14 5
-13 1
-11 9
-5 2
-4 1
-11 5
-18 3
-14 0
-11 6
-13 6
-11 9
-6 6
-14 4
-9 5
-6 0 -7 9
-12 0
-13 1
-4 1
-6 2
-10 6
-17 0
-2 2
-15 8
-9 7
-14 1
-13 4
-8 9
-11 4
-7 1
-12 9
-2 1
-13 0
-5 5
-4 4
-19 6
-15 3
-10 6
-19 7
-13 2
-8 0
-10 6
-13 2
-13 1
-10 5
-14 0
-20 4
-11 8
-11 6
-9 4
-9 6
-8 6
-14 4
-10 2
-10 9
-14 5
-11 1
-14 2
-11 2-8 8
-12 4
-2 7
-9 0
-10 6
-13 8
-10 3
-17 3 15 9
-9 4
-15 6
-21 7
-12 1 -10 9
-11 0
-13 2
-10 8
-6 6
-4 8
-19 4
-11 8
-8 5
-15 0
-8 2
-9 8
-2 8
-11 0
-19 4
-18 5
-12 9
-6 4
-6 8
-12 0
-5 8
-14 1
-14 2
-8 6
-17 3
-13 3
-17 5
-7 9 -10 0
-20 8
-9 8
-8 8
-12 5
-13 3
-9 4
-14 0
-14 0
-10 3
-12 2
-13 8
-17 9
-10 0
-11 1
-14 0
-11 3
-5 3
-10 0
-5
-11 4
-15 8
-17 5 -14 8
-17 1
-12 6
-14 9 -17 0
-13 3
-8 1
-8 9
-11 3
-16 8
-8 6
-19 3
-6 6
-11 3
-7 4
-12 4
-10 6
-3 7
-7 7
-11 4
-5 3
-14 1
-11 8 -6 5
-6 9
-8 4
-20 2
-6 3
-12 9
-13 8
-9 7
-14 8
-6 5
-12 2
-12 1
-10 8
8 8
-11 6
-6 3
-9 5
-16 6
-3 8
-5 6
-14 7
-15 7
-13 5
-3 0
-9 6
-14 3
-13 0
-10 1
-9 5
-10 7
-9 1
-14 3
-7 5
-20 9
-12 6
-15 7
-10 2
-7 8
-12 5
-14 8
-9 0
-10 3
-7 6
-7 7
-5 5
-6 8
-18 1
-20 2
-9 9
-13 5
-13 2
-14 4
-13 8
-22 4
-9 9
-12 2
-4 3
-10 8
-7 0
-6 8
-13 2
-14 5
-15 9
-13 1
-7 4
-9 4
-14 2
-15 1
-12 1
-13 6
-16 2
-12 4
-13 6
-7 0
-9 1
-12 2
-9 3
-10 7
-16 7
-6 6
-8 7
-4 9
-9 0
-17 7
-4 7
-15 0
-6 8
-20 1
-12 7
-9 9
-19 7
-12 7
-17 1
-14 4
-12 7
-8 0
-15 8
-10 3
-14 5
-9 4
-19 0
-11 3
-10 8
-14 9
-10 3
-14 2
-11 4
10 2
-9 4
-14 7
-6 9 -2 2
-11 4 -7 5
-13 5
-4 3
-6 8
-12 9
-12 8
-8 2
-6 6
-13 1
-8 4
-13 7
-10 1
-12 3
-9 7
-13 8
-6 7
-10 2
-14 8
-13 3
-16 1
-14 3
-5 8
-16 0
-5 2
-9 3
-7 3
-11 7
-11 9
-13 3
-7 0
-13 6
-3 1
-12 7
-10 6
-12 4
-13 4
-11 5
-4 4
-8 9
-13 7
-18 6
-15 1
-4 4
-23 0
-19 3
-12 3
-6 6
-5 3
-19 4
-18 8
-4 4
-13 2
-16 4
-17 6
-14 8
-12 5
-7 4
-4 5
-10 0
-17 2
-4 0
-6 7
-11 4
-12 4
-7 8
-9 5
-12 1
-10 3
-12 0
-13 5
-7 0
-9 4
-13 3
-21 7
-16 5
-14 3
-9 1
-11 9
-20 9
-8 0
-3 4 -14 3
-10 7
-5 4
-7 2
-6 4
-11 7
-7 2
-13 4
-14 0
-6 3
-16 7
-12 8
-10 9
-12 1
-7 5
-12 7
-12 1
-12 5
-7 2
-9 0
-12 9
-10 7
-15 9
-18 3
-16 1
-20 7
-13 2
-12
-12
-12
-12
-12
-12 -12
-12
-12
-12
"B71A"
"B71"
"LTB72"
"B70"
"LTBWR12A"
SE
C
TI
O
N
T
AN
G
EN
T I
FY
A
IW
W _S ec tio n
Ta ng en t I
.d w g
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
TYPICAL DREDGING SECTION
(TYP)
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
VARIES
TYPICAL DREDGING SECTION
NOT TO SCALE
(TYP)
-44
1. SOUNDINGS ARE EXPRESSED IN FEET AND REFER TO NOAA'S REPORTED MEAN LOWER LOW
WATER (MLLW) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
2. PROJECT SURVEYED 05 NOVEMBER 2025 WITH DISTRICT SURVEY VESSEL "ROGERS", USING RTK
GPS HORIZONTAL POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
3. TIDE GAGE LOCATED AT: DM 69
4. HORIZONTAL DATUM NAD 1983. VERTICAL DATUM MLLW.
5. INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULTS OF SURVEYS MADE ON THE
DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS
EXISTING AT THAT TIME.
6. NAVIGATION AIDS LOCATED BY SURVEY VESSEL. ACCURATE +/- 3 METERS.
7. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS NORTH TOPSAIL
BEACH. FOR LOCATION OF PLACEMENT AREA, SEE SHEET CN103.
8. THE GOVERNMENT SHALL NOT BE LIABLE FOR THE CONTRACTOR'S FAILURE TO PROPERLY
PREPARE TO DEAL WITH THE EXISTING GEOLOGIC CONDITIONS AT EACH DREDGING AREA. THE
GOVERNMENT DOES NOT GUARANTEE THAT BORINGS INDICATE ACTUAL CONDITIONS, EXCEPT
FOR THE EXACT LOCATIONS AND THE TIME THAT THEY WERE MADE.
DESCRIPTION EASTING NORTHING
BUOY 70 2,498,707.22 296,128.03
BUOY 71 2,497,654.89 296,342.08
BUOY 71A 2,496,893.82 296,672.91
LTB 72 2,497,746.43 296,459.46
LTB WR12A 2,496,863.09 296,061.53
SECTION 2 TANGENT I
Feet 0 150 300
SECTION 2 TANGENT I
CENTERLINE OFFSET
SE
CT
IO
N
TA
NG
EN
T J
CHANNEL TO JACKSONVILLE
CHANNEL CENTERLINE
SCALE 1"=150'
NOTES
LEGEND
US Army Corps of Engineers
SO
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AT
IO
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IG
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D B
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SHEET ID
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"x
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
A
B
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D
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F
G
H
J
K
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P
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P1 -2
4- R
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AI
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-0
-3
CN104
N: 295296.51 E: 2494283.14
N: 295228.48 E: 2494341.66
N: 295013.66 E: 2493954.39
N: 294971.45 E: 2494043.03
N: 294842.08 E: 2494039.61
N: 294844.46 E: 2493949.91
N: 295948.72 E: 2495041.18
N: 295880.83 E: 2495099.58
N: 296169.79 E: 2495435.30 N: 296499.78
E: 2496282.37
N: 296940.55 E: 2496193.74
0+005+0010+0015+0020+0025+0029+08.51
-18 1
-9
-12
-14 7
-9 6
-18 1
-10 6
-9
-14 2-14 6
-10
-10
-7 5
-21 1
-13 5
-10 1
-7
-5
-8
-4 8
-12 8
-4 5 -11 8
-13 7 -15
-12 7 -6
-15
-14 5
-12
-21 2
-15
-14
-11 7
-11 2
-9
-6
-10
-10
-9
-8
-13 8
-13 6
-11 0
-9
-14 3
-11 8
-15
-13 8
-12
-15 1
-12 8
-10
-7 3
-19
-9
-15
-8
-9
-8 1
-11 5
-9
-13
-13 0
-13 5 -9 1
-2 8
-20 3
-14 8
-14 0
-2 9
-15
-11 1
-6
-13 0
-11 2
-14
-13 6
-13 9
-15 1
-11 0
-15 5
-14 6 -11 4
-16
-19
-14 3
-13 8
-6
-11 6
-13
-7 0
-9
-10 8
-16
-11 7
-10
-13 8
-12 1
-10 1
-11 4
-9
-10
-4 6
-9 3
-9 8
-10
-8
-13
-20
-8
-14
-11 0
-14 0
-10
-19 0
-10
-5 1
-13
-15
-10
-10
-12 5
-10 9
-6
-10 1
-11 8
-13 8
-10
-8
-4 6
-13
-16 5 -11 5
-17 9
-11 5
-5
-13
-14 7
-7 5
-13 1
-17 1
-9
-12
-13 1
-12 6
-14 6
-13 7
-20
-13
-12 5
-11 4
-12 8
-10
-15
-14 5
-10 6
-9 3
-18 1 -9 9
-8 1
-12 1
-19 3
-11 6
-13
-11 0
-7
-10 1
-5
-9
-13
-13
-9 3
-9 9 -14 2
-10 9
-9
-9
-8 1
-15
-16 1
-15
-12 9
-6 8-14
-8 9
-10
-11 7
-11 6 -8
-13
-12
-10 0
-12 7
-11 1
-8
-17
-8 1
-13 5
-11 2
-8
-11 9
-13
-11 7
-8
-15
-17 9
-11 6
-5
-10 1
-14 5
-12
-11 7
-4 2
-15
-17
-13 9
-8
-16 8
-13
-12 6
-13
-7 5
-11 3
-18 9
-16 9
-15
-9 8
-12 5
-9
-8
-6
-13
-13
-6
-12 0
-11 4
-7 3
-7 6
-15
-10
-12 0
-13
-6 1
-17 9
-4
-12 8
-14 5
-9
-9
-7
-13 1 -7
-15
-8
-8
-9
-10
-13
-7 6
-8
-12 1
-10
-14 2
-8
-10 5
-4 9
-7 9 -7
-13
-12
-5
-14
-13
-9
-18 1
-10
-16
-10
-15
-11 2
-19 1
-10
-9 5
-18 5
-12 9
-10 8
-11 4
-11 2
-10
-16
-12 0
-13
-18 0
-15
-11 3
-10
-12 6
-11 3
-9
-13 5
-11 2
-9
-12 3
-9
-10
-13 0
-16 5
-16 1
-10
-7 7
-17 8
-11 2
-7 0
-6
-4 5
-10 3
-10
-14 3
-10 8 -8 1
-8
-7 8
-16
-7 7
-9
-13
-9
-14
-9
-15
-8
-18
-12
-6
-11 8 -12
-15
-11 0
-14 3
-4 1
-18
-14 0
-13
-9
-10 6
-13
-10 3
-13 1
-15 9
-12 1
-13
-12 0
-7 8
-13 1
-11 9
-5 2 -4 1
-11 5
-18
-14
-11 6
-13 6 -6
-14
-13 6
-7 9
-11 9
-12 0
-13 1
-4 1
-10
-15 8
-15
-9
-14 1
-8 3
-13
-8
-11 4
-7 1
-2 1
-13 0
-19
-15 3
-10
-13
-8
-15 1
-10 6
-13
-13 1
-10 5 -14 0
-10 9
-5
-9
-9 6
-13 1
-8
-13 1
-10 9-15
-11 1
-8 8
-2 7
-10
-13 8
-10 3
-13
-9
-15 6
-21 7
-12 1
-16
-11 0
-10 8
-6
-19
-11 8
-8
-9
-11 0
-12 0
-18
-12 9
-6
-12 0
-14 1
-14
-8 6
-17
-13 3
-12 0 -7 9
-10 0
-9
-8 3
-13 1
-8
-11 9
-12 5
-13 3 -13
-9
-14 0
-14 0
-14 0
-14 9
-10
-12 2
-13 8
-17 9
-10
-11 1
-14
-11 3
-10 0
-11 4
-15
-17 5
-14 8
-17 1
-12
-12 6
-12 7
-16
-13 3
-14 9
-17 0
-8 1
-13
-17
-15
-8
-11 3
-8
-18
-6
-11 3
-7
-12
-13 8 -10
-4 1
-7 7
-5 3
-10 5
-12 2-9
-14 1
-11 8
-6
-6 9
-8
-14 6
-18
-14
-15 8 -6 3
-13
-12 9
-9
-14 8
-12 2
-12 1
-8
-6 3
-9 5
-5 0
-5
-14 7
-13
-15
-13 5
-9 6-15
-14
-10 1
-14 3
-9
-16 0
-13
-9 1
-7
-20 9
-12 6
-9 3
-15
-10
-11 8
-12 5
-14 8
-9 0
-10 3
-7 6
-9
-18 1
-20
-9
-13 5
-14
-13 8
-22
-9 9
-12
-10
-7 0
-15 0
-6 8
-13
-14 5
-15 9
-13 1
-7
-14
-12 8
-18
-15 1
-12 1
-16
-13
-7 0
-15 0
-9
-9 3
-10
-6
-8
-4 9
-9
-17 7
-15
-6
-20 1
-12 7
-9 9
-12 7
-14
-12
-11 1
-8
-15 8
-10
-8
-9
-5
-11 3
-14 6
-11 4
-10
-14 7
-13
-16 3
-11 4
-7 5
-15
-6
-15
-13 1
-8
-13
-15 8
-6
-10 1
-17
-14 8
-9
-6
-10
-16 1
-11 0
-5
-5
-11 9
-7 7
-3 1
-12 7
-12
-13
-4
-8
-13
-15 1
-8
-4
-19 3
-14 8
-6
-5
-14
-11 6
-18
-4
-9 3
-14 5
-15 1
-7
-4 5
-10 0
-12
-9
-15 3
-12 1
-10 3
-13
-17 1 -13 3
-16
-7 0
-9
-11 9
-13 3
-12 5
-14 3
-11 9
-8 0
-3
-5
-7
-6
-11 7
-6
-6
-12 8
-10
-12 1
-7 5
-15
-18
-12 8
-12 2
-12
-12 1
-13 9
-7
-17 3
-9 0
-12 9
-12 5
-9
-20 7
"B11"
"LTDM2"
"B76" "B78"
SE
C
TI
O
N
T
AN
G
EN
T J
FY
A
IW
W _S ec tio n
Ta ng en t J
.d w g
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
TYPICAL DREDGING SECTION
(TYP)
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
VARIES
TYPICAL DREDGING SECTION
NOT TO SCALE
(TYP)
-44
SECTION 2 TANGENT J
Feet
0 150 300
SECTION 2 TANGENT I
SECTION 2 TANGENT J
CENTERLINE OFFSET
C H
AN
N
EL TO
JAC
KSO
N
VILLE
SE
CTI
ON 3
TA
NGEN
T
I
CHANNEL PRISM LINE
CHANNEL CENTERLINE
1. SOUNDINGS ARE EXPRESSED IN FEET AND REFER TO NOAA'S REPORTED MEAN LOWER LOW
WATER (MLLW) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
2. PROJECT SURVEYED 05 NOVEMBER 2025 WITH DISTRICT SURVEY VESSEL "ROGERS", USING RTK
GPS HORIZONTAL POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
3. TIDE GAGE LOCATED AT: DM 69
4. HORIZONTAL DATUM NAD 1983. VERTICAL DATUM MLLW.
5. INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULTS OF SURVEYS MADE ON THE
DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS
EXISTING AT THAT TIME.
6. NAVIGATION AIDS LOCATED BY SURVEY VESSEL. ACCURATE +/- 3 METERS.
7. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS NORTH TOPSAIL
BEACH. FOR LOCATION OF PLACEMENT AREA, SEE SHEET CN103.
8. THE GOVERNMENT SHALL NOT BE LIABLE FOR THE CONTRACTOR'S FAILURE TO PROPERLY
PREPARE TO DEAL WITH THE EXISTING GEOLOGIC CONDITIONS AT EACH DREDGING AREA. THE
GOVERNMENT DOES NOT GUARANTEE THAT BORINGS INDICATE ACTUAL CONDITIONS, EXCEPT
FOR THE EXACT LOCATIONS AND THE TIME THAT THEY WERE MADE.
DESCRIPTION EASTING NORTHING
LTDM 2 2,493,922.81 295,023.22
BUOY 11 2,495,896.95 296,401.27
BUOY 76 2,494,901.10 295,854.87
BUOY 78 2,495,500.40 296,363.36
SCALE 1"=150'
NOTES
LEGEND
US Army Corps of Engineers
SO
LI
C
IT
AT
IO
N N
O
D
ES
IG
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B
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D
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C R
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D B
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D R
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SHEET ID
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D R
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O D
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R
TA
S
ET
"x
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R . M
C C
AD
D
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P1 -2
4- R
-W
AI
W
W
-0
-3
CN105
APPROXIMATE BEGINNING POINT
FOR BEACH PLACEMENT
N: 60195.66 E: 2235042.20
NOTES
SLOPE INTERCEPT
N.T.S.
SLOPE
INTERCEPT
EXISTING GROUND
N.T.S.
TRANSITION DETAIL
TOP OF BERM +6.0' NAVD 88
TIE INTO EXISTING
6' NAVD 88 CONTOUR
OR EXISTING GROUND
ELEVATION
500'
TIE INTO EXISTING
6' NAVD 88 CONTOUR
OR EXISTING GROUND
ELEVATION
500'
MIN. 100' WIDE
CONSTRUCTION
BERM
MIN. 100' WIDE
CONSTRUCTION
BERM
MIN. 100'
TYPICAL BEACH PLACEMENT SECTION
3000' APPROXIMATE LIMITS OF PLACEMENT AREA
Feet
10005000 250
O
AK
IS
LA
N D
B
EA
C H
P
LA
C
EM
EN
T
1. PHOTOGRAPHY DATE: OCTOBER 31, 2025 © 2025 VANTOR .
2. THE PIPELINE ROUTE SHOWN IS APPROXIMATE. THE CONTRACTOR MUST COORDINATE WITH ALL PARTIES TO DETERMINE THE FINAL PIPELINE
ROUTE BEFORE WORK BEGINS. THE FOLLOWING ACTIONS ARE REQUIRED:
2.A. MEET ON-SITE WITH THE CONTRACTING OFFICER OR HIS/HER REPRESENTATIVE AND A REPRESETATIVE FROM THE NORTH CAROLINA WILDLIFE RESOURCES COMMISSION 15 CALENDAR DAYS BEFORE WORK BEGINS TO DETERMINE THE PIPELINE ROUTE AND EXACT STARTING
POINT FOR BEACH MATERIAL PLACEMENT.
2.B. CONTRACTOR SHOULD NOTIFY THE TOWN OF OAK ISLAND (MR DAVID KELLY, TOWN MANAGER, 910-201-8002) NO LESS THAN 15 DAYS BEFORE
PIPELINE PLACEMENT BEGINS.
3. THE EXACT BEGINNING POINT FOR PLACEMENT OF DREDGED MATERIAL ON THE BEACH WILL BE ESTABLISHED BY THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE IMMEDIATELY PRIOR TO START OF DREDGING AND BEACH PLACEMENT OPERATIONS.
4. HORIZONTAL DATUM NAD 1983.
5. VERTICAL DATUM NAVD 1988. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING HORIZONTAL AND VERTICAL CONTROL PRIOR TO
PLACEMENT OF DREDGED MATERIAL IN THE DESIGNATED PLACEMENT AREA.
6. FOR DETAILS OF AREAS TO BE DREDGED, SEE SHEETS CN107 .
7. ALL CONTRACTOR OPERATIONS SHALL BE PERFORMED IN A MANNER THAT AVOIDS DAMAGE TO EXISTING STRUCTURES, AND ROADS.
STRUCTURES AND ROADS DAMAGED BY CONTRACTOR'S OPERATIONS SHALL BE REPAIRED TO THE SATISFACTION OF THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE AT NO COST TO THE GOVERNMENT OR TO THE OWNERS OF DAMAGED PROPERTY. IN ORDER TO MINIMIZE THE RISK OF DAMAGE, WHEELED OR TRACKED EARTH MOVING EQUIPMENT SHALL NOT WORK CLOSER THAN 10 FEET FROM STRUCTURES DURING ALL WORK, INCLUDING DISTRIBUTION AND MOVEMENT OF BEACH FILL MATERIAL. IN AREAS WHERE IT IS NOT POSSIBLE TO TIE INTO THE 6-FOOT CONTROUR, THE CONTRACTOR SHALL CONSTRUCT THE BACKSLOPE TO THE NATURAL ANGLE OF REPOSE.
8. ALL WORK ON THE BEACH, INCLUDING PIPE REMOVAL, SHALL BE COMPLETED BY 31 MARCH 2027, SEE PARAGRAPH ENVIRONMENTAL WINDOWS OF SECTION 01 57 19 OF THE SPECIFICATIONS FOR ENVIRONMENTAL WINDOWS AND RESTRICTIONS. NO ENVIRONMENTAL WINDOW EXTENSION
WILL BE GRANTED.
9. STAGING OF MATERIAL OR EQUIPMENT WILL NOT BE PERMITTED ON THE NORTH SIDE OF TANGENT 11 BETWEEN THE TWO PIERS AT
APPROXIMATELY STATIONS 10+00 TO STATION 40+00.
10.CONTRACTOR SHALL POST SIGNS AND TEMPORARY FENCES IN AND AROUND ACTIVE ONSHORE WORK AREAS IN ACCORDANCE WITH
SPECIFICATION 01 35 26.
11.SURVEYS FOR PLACEMENT ARE REQUIRED PER SPECIFICATION SECTION 02 21 00.
12.NATURAL SLOPE FOR BEACH PLACEMENT IS DEFINED AS SLOPE RESULTING FROM THE EFFECTS OF WAVE AND WATER LEVEL CONDITIONS.
AREA TO BE DREDGED
LEGEND
OPTIONAL AREA TO BE DREDGED
TANGENT 7
TANGENT 8
TANGENT 9
TANGENT 10
TANGENT 11
TANGENT 12
OAK ISLAND
LO
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KW
O
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S FO
LLY IN
LET
APPROXIMATE LOCATION OF PIPELINE ROUTE
SCALE 1"=150'
3000'
APPROXIMATE LIMITS OF
PLACEMENT AREA FILL
MATERIAL SHALL BE PLACED
DOWN THE BEACH AT THE
DESIGNATED BEACH
PLACEMENT WIDTH UNTIL
MATERIAL TO BE DREDGED IS
EXHAUSTED. WIDTH OF
TYPICAL BEACH PLACEMENT
SECTION MAY BE ADJUSTED
AT THE DISCRETION OF THE
C.O.R.
APPROXIMATE LOCATION
OF PARTIALLY EXPOSED
ABANDONED 12"
WATERLINE
SEE SHEET R-1
FY
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US Army Corps of Engineers
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CN106
APPROXIMATE LOCATION
OF PARTIALLY EXPOSED
ABANDONED 12 "
WATERLINE.
N: 62,737 E: 2,232,239
SEE SHEET R-1
12" WATERLINE
0+005+0010+00
15+0020+0025+0030+0035+0040+00
N: 63358.5 E: 2233246.1
N: 63269.8 E: 2233261.1
N: 62738.9 E: 2230119.6
N: 62827.6 E: 2230104.6
-12
-12
-1
-1
W W W W W W W
W
W
W
W
W
W
W
N: 63132.1 E: 2232446.4
N: 62917.9 E: 2232303.3
N: 62661.9 E: 2232064.6
N: 62888.0 E: 2231002.3
N: 62553.6 E: 2231423.6
N: 62700.2 E: 2231249.0
BULKHEAD
W W
W
W W
W W
-9 8
-2 2
-5 9
-13 3
-5 7 -14 1
-14 9
-4 6
-8 9
-6 1
-11 0
-4 5
-2 0
-9 0
-13 8 -8 8
-11 9
-12 4
-14 3
-8 7
-15 3
-12 6
-11 9
-12 7
-8 9
-9 0
-2 3
-4 9
-10 3
0 9
-5 0
-6 6
-1 8
-2 6
-13 0
-5 6
-8 4
-3 7
-14 2
-14 8
-5 1
-17 2
-11 2
-5 3
-7 9
-15 6
-9 5
-10 3
-8 7 -8 3
-14 5
-2 5
-10 6 -11 1
-7 6
-14 0
-4 4
-12 6
1 8
-4 0
-8 3
-9 6
-2 1
-3 5
-8 8
-10 8
-11 1
-9 4
-6 1
-7 3
-6 0
-7 1
-6 3
-4 0
-5 0
-8 7
-16 5
-5 8
-15 9
-14 5
-9 5
-10 6
-2 7
-4 7
-9 7
-9 8
0 2
-13 0-5 4
-1 5
-13 7
-15 8
-13 9
-12 4
-11 9
-8 7
0 5
-3 9
-9 3
-2 9 -5 5
-1 5
-2 8 -9 5
-9 1 -1 9
-10 4
-7 0
-1 7
-5 3
-15 4
-1 7
-10 9
-8 6
-4 8
-10 8
-9 2
-9 8
-5 1
-3 1 -14 8
-12 4
-10 9
-11 6
-15 9
-0 8
-16 9
-2 0
-12 6
-6 7
-10 6
-9 7
-12 9
-10 3
-7 5
-15 5
-9 6
-7 8 -6 8
-13 9
-12 6
-2 3
-8 2
-17 6
-14 4
-14 5
-13 8
-11 3
-12 0
-3 5
-7 3
-18 2
-13 4
-3 9
-12 3
-15 6-15 1 -13 9
-9 8
-13 2
-12 8
-5 1
-16 2
-7 0
-3 1
-12 9
-4 6
-2 7
-18 6
-13 5
-11 2
-3 6
-10 1
-1 3
-3 2 -7 4
-8 1
-6 3
-1 0
-3 9
-5 2
-7 5
-1 9
-13 3
-4 3-5 0
-11 5
-2 8
-12 1
-4 7
-7 2
-11 1
-3 4 -2 9 -2 9
-8 7
-4 1
-14 3
-4 4
-1 5
-1 1
-9 9
-16 9
-10 0
-2 8
-15 9
-4 4
-6 8
-8 7
-12 3
-13 6
-3 4
-8 4
-2 3
-6 1-5 5
-12 4
-14 4
-2 6
-13 9
-4 5
-2 1
-12 8
-6 2
-9 3
-15 1
-2 4
-12 8
-17 6
-3 2
-1 1
-5 5
-9 8
-1 8
-12 0 -11 3
-15 4
-5 1
-10 1
-12 7
-1 0
-4 4
-3 5
-9 8
-15 3
-4 4
-10 1
-14 6
-4 8
-10 9
-4 1
-2 6
-10 1
-9 3
-13 2
-16 1
-4 4
-11 8
-13 8 -11 2
-5 9
-4 6
-5 4
-8 1 -13 6
-5 8
-3 1
-8 5
-5 0
-3 6
-2 0
-15 6
-11 6
-12 8
-17 2
-5 9
-9 8
-5 0
-7 5
-11 8
-3 7
-14 2
-7 7
-13 3
-1 9
-14 1
-9 9
-14 4
-11 3
-9 4
-14 0
-13 1
-8 1
-10 8
-6 7
-11 4
-11 7
-12 7
-12 7
-5 0
-12 5
-10 6 -11 4
-4 1
-12 7
-14 0
-5 4
-4 3
-8 6
-10 8
-13 1
-2 9
-5 3
-11 8
-13 6
-8 9
-9 2
-5 2
-8 5
-3 7
-8 3
-2 3
-13 1
-15 1
-10 6
-12 7
-5 7
-5 6
-16 1
-5 2
-17 7
-2 8
-4 1
-11 1
-13 4
-3 7
-7 5
-5 9
-13 3
-9 8
-15 9
-7 4
-12 0
-7 7
-13 9
-9 3
-5 2
-3 1
-14 2
-2 5
-11 7
-7 7
-3 2
0 6
-9 5
-9 3
-5 2
-5 6
-14 7
-6 5
-13 3
-2 8
-18 0
-12 1 -8 4
-7 8
-10 2
-7 0
-9 3
-15 3
-2 3
-10 7
-10 3
-6 4
-7 8
-5 5
-4 5
-15 8
-5 9
-5 8
-9 4
-12 6
-13 6-6 6
-11 4
-10 3
-4 4
-3 0
-16 7
-11 8
-3 5
-12 9
-7 9
-12 4
-18 1
-4 5
-13 3
-14 6
-9 0
-9 2
-5 7
-9 4
-4 6
-14 5
-16 5
-13 0
-16 9
-1 9
-8 3
-9 5
-8 8
-7 4
-5 5
-14 1
-14 5
0 4
-10 1
-5 4
-9 0
-2 3
-11 6
-11 5
-7 1
-10 6
-6 6
-10 5
-16 3 -13 5
-12 3
-14 6
-15 5
-2 1
-5 6
-8 0
-6 8
-15 5
-10 4
-15 5
-1 7
-3 0
-1 7
-4 1
-13 3
-8 2
-9 8
-8 9
-1 8
-7 1
-1 0
-7 5
-15 5-16 8
-13 0 -12 6
-8 5
-5 4
-12 6
-2 3
-12 7
-15 0
-6 5 -11 1
-11 5
-15 0
-12 0
-7 1
-13 6
-15 1
-9 2
-16 2
-3 7-2 7
-6 5
-12 5
-10 0
-1 4
-14 5
-13 5
-13 2
-1 5
-13 8
-6 4
-13 1
-13 9
-2 1
-13 0
-9 6
-5 1
-13 5
-10 5
-6 1
-7 0
-9 3
-11 4
-11 6
-10 0
-12 6
-15 5
-3 0
-2 8
-7 5
-12 5
-16 2
-1 4
-9 3
-13 8
-5 5
-7 6
-10 5
-13 4 -5 4
-14 3
-6 0
-8 7
-14 9
-14 7
-7 3
0 6
-11 1
-9 3
-14 3
-13 8
-4 7
-9 0
-12 8
-6 5
-4 6
-13 1
-12 3
-3 6
-14 9
-12 1
-7 2
-8 9
-6 4
-2 7
-2 1
-2 6
-12 7
-13 0
-6 6
-10 3
-12 3
-4 3
-2 9
-13 1
-13 2
-5 9
-10 1
-7 0
-13 3
-15 4
-1 4
-12 6
-15 1
-11 5
-4 6
-10 6
-13 9
-4 7
-17 0
-14 3
-4 2
-10 6
-16 2
0 1
-15 6
-8 3
-15 9
-1 7
-8 8
-11 9
-5 1
-14 4
-12 0
-14 3
-10 1
-6 7
-15 4-9 2-4 4
-6 4
-6 6
-2 3
-2 7
-12 0
-2 9
-4 7
-7 8
-9 8
-8 5
-11 7
-11 2
-14 2
-15 1
-4 5
-6 1
-13 8
-4 8
-9 4
-8 4
-1 8
-13 1
-14 8
-11 4
-4 8
-9 4
-11 6
-8 9
-7 5
-7 6
-7 0
-6 6
-17 4
-10 9
-12 9
-12 7
-0 5
-8 8
-14 0
-16 8
-3 0
-6 9
-6 5
-3 7
-11 5
-5 7
-1 8
-3 1
-2 9
-3 8
-5 9
-9 3
-15 6
-5 8
-9 3
-4 4
-9 1
-10 4
-14 8
-12 0
-16 5
-0 5
-6 4
-12 3
-13 0
-8 1
-1 5
-14 9
-1 8
-18 2
-15 5
-1 8
-11 9
-17 9
-6 5
-8 9
-13 9
-10 7
-5 2
-3 4
-9 0
-2 7
-7 7
-7 7
-8 6
-6 9
-14 5
-13 3
-3 7
-10 3
-15 8
-8 2
-11 8 -10 5
-8 7
-16 5
-6 0
-16 9
-12 9
-7 3
-10 5
-14 0
-6 5
-12 1
-12 7
-15 2
-5 3 -10 5
-7 3
-10 5
-8 3
-8 7
-8 6
-8 5
-9 8
-17 0
-9 4
-13 8
-10 0
-8 6
-10 2
-9 1
-4 2
-0 2
-7 7
-13 6
-12 8
-5 5
-16 8
-10 0
-9 1
-9 8
-18 0
-8 5
-3 5
-12 4
-7 6
-7 1
-6 6 -2 1
-16 8
-10 8
-2 8
-8 8
-14 1
-12 1
-12 7
-12 2
-5 1
-16 7
-13 9
-9 0-9 9
-9 2
-5 7
-10 2
-8 0
-13 3
-13 2
-8 6
-7 0
-17 0-18 7
-16 5
-5 0
-15 6
-6 0
0 0
-11 1
-6 1
-13 7
-10 7
-14 7
-10 1-11 5
-5 9
-2 3
-14 2
-7 2 -6 9
-16 4
-1 9
-10 0
-9 2
-14 3
-13 7-13 9
-11 8
-12 0
-7 8-10 2
-11 9 -15 7
-10 8
-15 9-5 6-3 0
-10 4
-6 7
-4 2-5 6
-11 1
-13 9
-2 8
-3 2
-4 8
-5 5 -12 5
-7 1
-11 0
-1 5
-11 3
-15 3
-7 4
-15 2
-19 4
-10 9
-6 3
-0 1
-9 1
-4 2
-3 8
-7 6
-4 0
-4 5
-11 0
-5 7
-13 5
-6 5
-11 7
-3 5
-1 3
-4 8
-3 7
-8 4
-3 4
-10 6
-8 4-8 1
-7 7
-8 6
-9 6
-6 4 -15 2
-17 9
-15 8
-10 3
-14 6
-3 1
-17 7
-2 2
-6 4
-13 9
-18 0
-7 4
-15 6
-16 1
-8 0
-10 2
-6 0
-8 6
-10 9
-14 4
-11 2
-5 7
-9 9
-10 9
-16 2
-10 9
-10 8
-14 7
-8 9
-7 1
-10 9
-5 7
-13 2
-3 9
-15 0
-17 0
-6 6
-16 6
-11 5 -14 4
-3 7
-7 8
-10 5
-14 6
-12 2
-5 2
-14 8
-11 2-8 8 -6 8 -7 4
-14 3
-7 3
-17 9
-11 5
-7 8
-8 0
-4 8
-3 1
-13 7
-2 5
-16 5
-2 5
-13 3 -13 0
-12 0
-6 0
-5 0
-6 6
-10 3
-11 7
-4 1
-9 5
-14 4
-8 9
-18 5
-9 0
-6 9
-13 2
-10 6
-1 6
-15 1
-12 9
-15 9
-7 1
-3 3
-1 9
-13 0
-9 9
-8 4
-11 9
-13 4
-15 0
-12 0
-15 0
-13 0
47B
LTDM 48A 47A
46A
-12
-12
-12
-12
-12
-12
1. SOUNDINGS ARE EXPRESSED IN FEET AND REFER TO NOAA'S REPORTED MEAN LOWER LOW
WATER (MLLW) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
2. PROJECT SURVEYED 23 MARCH 2026 WITH DISTRICT SURVEY VESSEL "ROGERS", USING RTK GPS
HORIZONTAL POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
3. TIDE GAGE LOCATED AT: LT DM 48A
4. HORIZONTAL DATUM NC SP NAD83 (2011). VERTICAL DATUM MLLW.
5. INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULTS OF SURVEYS MADE ON THE
DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS
EXISTING AT THAT TIME.
6. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS OAK ISLAND. SEE
SHEET CN106 FOR DETAILS.
7. THE GOVERNMENT SHALL NOT BE LIABLE FOR THE CONTRACTOR'S FAILURE TO PROPERLY
PREPARE TO DEAL WITH THE EXISTING GEOLOGIC CONDITIONS AT EACH DREDGING AREA. THE
GOVERNMENT DOES NOT GUARANTEE THAT BORINGS INDICATE ACTUAL CONDITIONS, EXCEPT
FOR THE EXACT LOCATIONS AND THE TIME THAT THEY WERE MADE.
8. NAVIGATION AIDS LOCATED BY SURVEY VESSEL, ACCURACY +/- 3 METERS.
EASTING AND NORTHING COORDINATES ARE IN FEET.
DESCRIPTION EASTING NORTHING
LT DM 44 2,233,949.32 63,556.94
BUOY 46A 2,233,153.27 63,415.20
BUOY 47 2,232,696.34 63,166.99
BUOY 47A 2,232,042.64 63,304.09
BUOY 47B 2,230,968.76 62,787.64
BUOY 48 2,231,121.22 63,016.61
LT DM 48A 2,229,769.11 62,835.41
NOTES LEGEND
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
TYPICAL DREDGING SECTION
(TYP)
M.L.L.W.
CHANNEL PRISM
LINE (TYP)
REQUIRED DEPTH
2' ALLOWABLE
OVERDEPTH
90'
TYPICAL DREDGING SECTION
NOT TO SCALE
(TYP)
FEET
3001500 75
CFR-LR TANGENT 11 AND LOCKWOOD'S
FOLLY WIDENER (OPTION)
SCALE 1"=150'
CN107
FY
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1.
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(O
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N
OPTIONAL AREA
TO BE DREDGED
W
ATER LINE
APPROXIMATE LOCATION
OF PARTIALLY EXPOSED
ABANDONED 12 "
WATERLINE.
N: 62,737 E: 2,232,239
CHANNEL PRISM LINECHANNEL CENTERLINE
US Army Corps of Engineers
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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APPROXIMATE LOCATION OF PARTIALLY
EXPOSED ABANDONED 12" WATERLINE
SEE SHEET R-1
NOTES
1. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS MILE HAMMOCK BAY PLACEMENT AREA. FOR
LOCATION SEE THIS SHEET.
2. FOR DETAILS OF AREA TO BE DREDGED, SEE SHEET CN110.
3. PHOTOGRAPHY DATE: NOVEMBER 10, 2025 © 2025 VANTOR
4. PRIOR TO COMMENCEMENT OF DREDGING AND PLACMENT OPERATIONS, THE CONTRACTOR MUST COMPLETE THE
FOLLOWING:
4.1. PROVIDE A MINIMUM OF 90 CALENDAR DAYS NOTICE TO COORDINATE SCHEDULING WITH THE CONTRACTING OFFICER, CONTRACTING OFFICER REPRESENTATIVE (COR), AND USMC RANGE CONTROL.
4.2. MEET ON SITE WITH THE CONTRACTING OFFICER'S REPRESENTATIVE NO LESS THAN 15 CALENDAR DAYS PRIOR TO COMMENCEMENT OF DREDGING TO OBTAIN APPROVAL OF THE PIPELINE ROUTE TO THE PLACEMENT AREA AND INITIAL
DISCHARGE POINT.
5. ACCESS BY MARINE CORPS BASE CAMP LEJEUNE (MCBCL) GATE MUST HAVE BASE ACCESS CLEARANCE. IN LIEU OF BASE ACCESS CLEARANCE, EQUIPMENT CAN BE BARGED INTO MILE HAMMOCK BAY. CONTRACTOR SHALL COORDINATE WITH COR
IF CHOOSING TO BARGE EQUIPMENT.
6. HORIZONTAL DATUM: NAD 1983. VERTICAL DATUM: MEAN LOWER LOW WATER (M.L.L.W).
7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING HORIZONTAL AND VERTICAL CONTROL.
FEET
10005000 250
OPTIONAL AREA TO BE DREDGED
LEGEND
APPROXIMATE PIPELINE ROUTE
SCALE 1"=500'
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MILE HAMMOCK BAY
MILE HAMMOCK BAY PLACEMENT AREA
US Army Corps of Engineers
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EXISTING DAMAGED SPILLWAY
STRUCTURE AND OUTFALL PIPE
TO BE PROTECTED DURING
DREDGING OPERATIONS.
PROTECTION SHALL BE REMOVED
POST-CONSTRUCTION.
APPROXIMATE COORDINATES:
N: 297997.5116 E: 2504277.0243
AS WATER FILTERS FROM SLURRY MIX
TOWARDS DOWNSTREAM END OF
CONFINED UPLAND SITE, CONTRACTOR
SHALL DEWATER SITE TO MAINTAIN 2' OF
FREEBOARD FROM THE TOP OF DIKE.
AFTER COMPLETION OF DREDGING
OPERATIONS, CONTRACTOR SHALL
DEWATER SITE TO ENSURE BRACKISH
WATER WILL NOT FLOW OUT OF EXISTING
SPILLWAY PIPE.
NOTES
1. HORIZONTAL DATUM: NORTH CAROLINA STATE PLAN NAD83 (2011) US SURVEY FEET.
2. VERTICAL DATUM: NAVD88
3. CONTOUR INTERVAL IS ONE FOOT, UNLESS OTHERWISE NOTED.
4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING HORIZONTAL AND VERTICAL CONTROL. AVAILABLE CONTROL POINTS IN THE VICINITY OF PLACEMENT AREA CAN BE FOUND AT THE INTERNET SITE: http://www.ngs.noaa.gov/NGSDataExplorer/.
5. THE EXISTING CONTOURS SHOWN REPRESENT THE RESULT OF 2019 LIDAR.
6. CLEARING AND GRUBBING SHALL BE ACCOMPLISHED IN ACCORDANCE WITH SECTION 31 11 00.10 "CLEARING" OF THE
SPECIFICATIONS.
7. WETLANDS LOCATED AROUND THE PERIMETER OF THE PLACEMENT AREA ARE PROTECTED BY LAW. EXCAVATION AND/OR FILLING OF WETLANDS WILL NOT BE ALLOWED. WETLANDS DAMAGED BY THE CONTRACT'S OPERATION SHALL BE RESTORED TO THE SATISFACTION OF THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE. RESTORATION SHALL ONLY COMMENCE FOLLOWING DIRECTION FROM THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE.
8. GROUND DISTURBANCE (EARTHWORK) IS PROHIBITED BETWEEN THE TOE OF THE EXISTING DIKE AND MILE HAMMOCK BAY
DUE TO ARCHEOLOGICAL RESTRICTIONS. SEE SHEET R-2 FOR REFERENCE.
9. CONTRACTOR SHALL CLEAR NO WIDER THAN A 12-FOOT LANE, UNLESS APPROVED BY THE COR, ALONG THE TOP OF THE
EXISTING DIKE TO ALLOW FOR INSPECTION OF DIKE DURING DREDGING.
10. CONTRACTOR MAY CLEAR A LANE, NO WIDER THAN 5' UNLESS APPROVED BY THE COR, FOR DREDGE PIPE TO DISCHARGE
INTO NORTHWEST CORNER OF CONFINED UPLAND SITE.
11. CONTRACTOR SHALL PROTECT THE EXISTING OUTFALL PIPE DURING DREDGING OPERATIONS TO PREVENT BRACKISH WATER FROM FLOWING THROUGH OVERLAND AND TO ENSURE STABILITY OF THE DIKE DURING PLACEMENT OF DREDGED MATERIAL.
CONTRACTOR SHALL REMOVE PROTECTION FOLLOWING CONSTRUCTION TO ALLOW STORMWATER TO FREELY FLOW OUT OF CONFINED PLACEMENT SITE. AN EXAMPLE OF PROTECTION OF THE OUTFALL PIPE IS TO SEAL THE INLET OF THE PIPE AND
GROUT THE PERIMETER OF THE PIPE AT THE DIKE WALL.
12. CONTRACTOR SHALL DEWATER CONFINED UPLAND SITE DURING AND AFTER DREDGING OPERATIONS AND RETURN WATER TO MILE HAMMOCK BAY. RETURN WATER MUST MEET TURBIDITY REQUIREMENTS IN ACCORDANCE WITH SECTION 01 57 19 OF THE SPECIFICATIONS. CONTRACTOR WILL SUBMIT A DEWATERING PLAN TO THE CONTRACTING OFFICER OR HIS/HER REPRESENTATIVE. DEWATERING OPTIONS CAN INCLUDE BUT ARE NOT LIMITED TO USING PUMPS AND GEOTUBES, FLOATING PUMPS, OR CREATING A TEMPORARY WEIR/DECANTING SYSTEM AND PUMPING THE WATER INTO THE BAY.
13. CONFINED UPLAND SITE IS PROPERTY OF MARINE CORPS BASE CAMP LEJEUNE
14. SURVEYS FOR CONFINED UPLAND SITE ARE REQUIRED PER SPECIFICATION SECTION 02 21 00.
15. NO CONTRACTOR PERSONNEL SHALL ENTER THE WORK AREA UNTIL MCBCL EOD HAS BEEN NOTIFIED AND PERFORMED A CLEARANCE OF THE AREA. CONTRACTOR TO COORDINATE WITH COR AT LEAST 15 DAYS PRIOR TO ARRIVAL.
16. ALL DREDGING IN MILE HAMMOCK BAY SHALL BE COMPLETED BETWEEN OCTOBER 1, 2026 AND MARCH 31 2027. ALL TREE CLEARING WILL TAKE PLACE BETWEEN JULY 16, 2026 AND DECEMBER 14, 2026 OR FEBRUARY 16, 2027 AND MARCH 31, 2027 SEE PARAGRAPH ENVIRONMENTAL WINDOWS OF SECTION 01 57 19 OF THE SPECIFICATIONS FOR ENVIRONMENTAL WINDOWS
AND RESTRICTIONS.
FEET
2001000 50
SCALE = 100' CN109
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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LEGEND
PROPOSED PIPELINE ROUTE
CLEAR 5' LANE AS NEEDED
CLEAR 12-FOOT LANE ALONG TOP OF DIKE
DEWATERING SHALL MAINTAIN 2-FT OF FREEBOARD AT ALL TIMES
N: 296857.6 E: 2504706.6
N: 296266.0 E: 2504725.0
N: 295512.7 E: 2504258.8
N: 295324.0 E: 2503870.4
N: 294867.5 E: 2503645.0
N: 294626.5 E: 2503749.1
N: 294771.8 E: 2503274.4
N: 294894.2 E: 2503557.9
N: 295365.6 E: 2503790.6
N: 296317.4 E: 2503977.7
N: 296829.1 E: 2503958.3
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-3 5
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-4 8
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-4 6
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-9 5
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-8 0
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DM 3
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LT 66
-44
1. SOUNDINGS ARE EXPRESSED IN FEET AND REFER TO NOAA'S REPORTED MEAN LOWER LOW
WATER (MLLW) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
2. PROJECT SURVEYED 20 APRIL 2026 WITH DISTRICT SURVEY VESSEL "ROGERS", USING RTK GPS
HORIZONTAL POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
3. TIDE GAGE LOCATED AT: ON LIGHT 61
4.…
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