A21 - W912PM21B0011_RTA-Plans_unlocked.pdf
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- Solicitation number
- W912PM21B0011
About this file
This document provides details for a federal contract solicitation issued by the U.S. Army Corps of Engineers Wilmington District. The solicitation is for maintenance dredging of the Atlantic Intracoastal Waterway between Morehead City and Shallotte, North Carolina, with an estimated 300,000 cubic yards of material to be dredged. Dredging must be performed by hydraulic cutter suction dredge, with disposal of dredged materials on approved ocean beaches and containment islands. The contract is set aside for small businesses with a magnitude between $5-10 million on a firm fixed price basis. The NAICS code is 237990 and size standard is $30 million. Offerors must register in SAM and the solicitation is available on beta.sam.gov through November 31, 2022. Additional contact is provided for any questions.
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Other files
| File | Type | Posted |
|---|---|---|
| Bid Opening Attendance.pdf | ||
| B1 - Bid Abstract_AIWW_W912PM21B0011.pdf | ||
| snowscut_2021-03-19ad_rogers_all.txt | TXT text file | |
| aiww_s2tF_20210108ad_all.txt | TXT text file | |
| lfi_2020-08-24cs_sanderson_all.txt | TXT text file | |
| LFX_2021-08-04cs_rogers_all.txt | TXT text file | |
| aiww_s2tF_20200915_cs_all.txt | TXT text file | |
| A21 - W912PM21B0011_AMD1 CC.pdf | ||
| A21 - W912PM21B0011_AMD1.pdf | ||
| A21 - W912PM21B0011_RTA-Specs.pdf | ||
| W912PM21B0011_FY22_AIWW_Maintenance-Dredging_RTA-Plans_locked.pdf | ||
| A21 - W912PM21B0011.pdf |
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SOLICITATION NO.:
CONTRACT NO.:
ISSUE DATE:
WILMINGTON DISTRICT
MAINTENANCE DREDGING
ATLANTIC INTRACOASTAL WATERWAY
NORTH CAROLINA
W912PM21B0011
TBD
JULY 2021
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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
6 JULY 2021
2 JULY 2021
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Wilmington
Topsail Beach
Morehead City Beaufort
Washington
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SCALE IN MILES
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BROWNS INLET CROSSING
Sheet No. Title
GI01 LOCATION MAP AND INDEX OF DRAWINGS
CN101
CN102
CN103
CN104
CN105
INDEX OF DRAWINGS
COVER SHEETG001
BROWN'S INLET SECTION 2 TANGENT F
BROWN'S INLET SECTION 2 TANGENT F PLACEMENT AREA
LOCKWOODS FOLLY INLET CROSSING & WIDENER TANGENT 10
LOCKWOODS FOLLY TANGENT 10 PLACEMENT AREA
SNOW'S CUT SECTION 5 TANGENT 3&4
SNOW'S CUT SECTION 5 TANGENT 4&4A
SNOW'S CUT SECTION 5 TANGENTS 3, 4, & 4A MASONBORO ISLAND PLACEMENT AREA
EROSION & SEDIMENT CONTROL NOTES & DETAILS
LOCKWOODS FOLLY INLET CROSSING
& WIDENER
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PAMLICO SOUND
"61"
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NAVIGATION AIDS
(TYP)
2' ALLOWABLE
OVERDEPTH
DEPTHREQUIRED
CHANNEL PRISM
LINE (TYP)
NOT TO SCALE
TYPICAL DREDGING SECTION
90'
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DESCRIPTION EASTING NORTHING
CONTOUR
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SCALE IN FEET
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SCALE: 1:2000
SOUNDING
LEGEND
AREA TO BE DREDGED
NAVIGATION AIDS LOCATED BY SURVEY VESSEL, ACCURACY +/- 3 METERS.
EASTING AND NORTHING COORDINATES ARE IN FEET.
THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS ONSLOW BEACH. FOR
LOCATION OF PLACEMENT AREA SEE SHEET CN102.
6.
7.
BUOY 60 2528908 313353
BUOY 61A 2528987 313200
BUOY 62 2528285 312635
DM 63 2528578 312796
HORIZONTAL DATUM NAD 1983. VERTICAL DATUM MEAN LOWER LOW WATER (M.L.L.W.).
SOUNDINGS ARE EXPRESSED IN FEET AND TENTHS AND REFER TO NOAA'S REPORTED
MEAN LOWER LOW WATER (M.L.L.W.) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
PROJECT SURVEYED 15 SEPT. 2020 & 08 JAN. 2021 WITH DISTRICT SURVEY VESSEL
"RODERS" & "SANDERSON" USING RTK GPS HORIZONTAL POSITIONING EQUIPMENT AND
200 KHZ SOUNDING EQUIPMENT.
TIDE GAGE LOCATED AT: LT DM 61
THE INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULT OF SURVEYS
MADE ON THE DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING
THE GENERAL CONDITIONS EXISTING AT THAT TIME.
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NOTES:
TRANSITION DETAIL
N.T.S.
500'
3000' APPROXIMATE LIMITS OF BEACH PLACEMENT AREA
LENGTH WILL BE DETERMINED
DURING CONSTRUCTION AND WILL
BE DEPENDANT ON QUANTITY OF
MATERIAL PLACED ON BEACH
75' WIDE
CONSTRUCTION
BERM
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BERM
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SECTION 2
FILL MATERIAL SHALL BE PLACED AT TYPICAL BEACH PLACEMENT
SECTION UNTIL MATERIAL TO BE DREDGED IS EXHAUSTED.
WIDTH OF TYPICAL BEACH PLACEMENT SECTION MAY BE ADJUSTED
AT THE DISCRETION OF THE C.O.R. TO ASSURE MATERIAL
PLACEMENT WITHIN THE LIMITS INDICATED.
1.THE PIPELINE ROUTE SHOWN IS APPROXIMATE. PRIOR TO PLACEMENT OF PIPE, CONTRACTOR SHALL MEET ON SITE 7 TO
10 CALENDAR DAYS WITH THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE 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. HORIZONTAL DATUM NAD 1983.
4. VERTICAL DATUM NAVD88. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABLISHING VERTICAL CONTROL PRIOR TO
PLACEMENT OF DREDGED MATERIAL IN DESIGNATED PLACEMENT AREA.
5. PHOTOGRAPHY DATE: 12 MARCH 2021, COPYRIGHT 2021 DIGITAL GLOBE
6. AREA TO BE DREDGED SHOWN THUS -
7. FOR DETAILS OF AREA TO BE DREDGED, SEE SHEET CN101.
8. 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", "NAVAL FIRING EXERCISES" AND "DISPOSAL OF
DREDGED MATERIAL" OF SECTION 35 20 23 OF THE SPECIFICATIONS.
9. THE CONTRACTOR SHALL BEGIN PLACEMENT OF DREDGED MATERIAL ON THE BEACH AT THE EAST END OF THE
DESIGNATED PLACEMENT AREA OR AS DIRECTED BY THE CONTRACTING OFFICER OR HIS/HER DESIGNATED
REPRESENTATIVE. 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'S
REPRESENTATIVE IMMEDIATELY PRIOR TO START OF DREDGING AND PLACEMENT OPERATIONS. PLACEMENT OF THE 75
FOOT WIDE BERM SHALL CONTINUE DOWN THE BEACH AS FAR AS THE QUANTITY OF DREDGED MATERIAL WILL ALLOW.
10. ONSLOW BEACH IS CONSIDERED SUITABLE NESTING HABITAT FOR SHORE BIRDS AND SEA TURTLES. ALL WORK ON THE
BEACH INCLUDING PIPE REMOVAL SHALL BE COMPLETED BY 31 MARCH 2022. SEE PARAGRAPH ENVIRONMENTAL
WINDOWS OF SECTION 01 57 19 OF THE SPECIFICATIONS FOR ENVIRONMENTAL WINDOWS AND RESTRICTIONS.
11. CONTRACTOR SHALL PROVIDE A MINIMUM 4 WEEKS NOTICE PRIOR TO DREDGING & PLACEMENT WORK TO COORDINATE
SCHEDULING WITH THE CONTRACTING OFFICER AND HIS/HER REPRESENTATIVE, AND USMC RANGE CONTROL.
12. CONTRACTOR SHALL POST SIGNS AT BOTH ENDS OF THE ACTIVE WORK AREAS IN ACCORDANCE WITH SECTION 01 35 26.
3000'
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NOTES
CHANNEL PRISM
LINE (TYP)
M.L.L.W.
(TYP)
REQUIRED
NOT TO SCALE
TYPICAL DREDGING SECTION
2' ALLOWABLE
OVERDEPTH
DEPTH
SOUNDING
NAVIGATION AIDS
ABANDONED NAVIGATION AID
SINKER AND CHAIN
SHEEP ISLAND
HOLDEN BEACH
CHANNEL PRISM LINE
CENTERLINE
CHANNEL PRISM LINE
TANGENT 11
BULKHEAD
15+00 10+00
"46"
"44"
0+00
5+00
40+00 35+0045+00
"48A"
30+00
20+00
"48"
25+00
OAK ISLAND
DESCRIPTION EASTING NORTHING
-12 CONTOUR
200100
SCALE IN FEET
300200
SCALE: 1:2000
VARIES
LEGEND
LIGHT # 44 2233914 63558
LIGHT # 46 2233099 63400
BUOY # 48 2231109 63006
LIGHT # 48A 2229781 62856
CENTERLINE OFFSET
N 62,867
E 2,231,355
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E 2,233,854
N 63,372
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APPROXIMATE SHORELINE
LOCATION (TYP.)
AUGUST 2019
N 62,712.2
E 2,231,162.6
N 63,132.1
E 2,232,446.4
N 62,901.4
E 2,232,281.8
N 62,888.0
E 2,231,002.2
N 62,819
E 2,230,054
N 62,730
E 2,230,069
1. HORIZONTAL DATUM NAD 1983. VERTICAL DATUM MEAN LOWER LOW WATER (M.L.L.W.).
2. SOUNDINGS ARE EXPRESSED IN FEET AND TENTHS AND REFER TO NOAA'S REPORTED
MEAN LOWER LOW WATER (M.L.L.W.) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
3. PROJECT SURVEYED 24 AUGUST 2020, WIDENER SURVEYED ON 08 SEPTEMBER 2020. WITH
DISTRICT SURVEY VESSELS "RODGERS" & "SANDERSON", USING RTK GPS HORIZONTAL POSITIONING
EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
4. TIDE GAGE LOCATED AT: LT DM 48A
5. THE INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULT OF SURVEYS
MADE ON THE DATE INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE
GENERAL CONDITIONS EXISTING AT THAT TIME.
6. NAVIGATION AIDS LOCATED BY SURVEY VESSEL, ACCURACY +/- 3 METERS.
EASTING AND NORTHING COORDINATES ARE IN FEET.
7. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS HOLDEN BEACH
FOR LOCATION OF PLACEMENT AREA SEE SHEET CN104.
8. 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.
9. CONTRACTOR SHALL HAVE SIGNS SET UP ON EITHER END OF THE DREDGING ARE A AND AT ALL
SUBMERGED PIPELINE CROSSINGS IN ACCORDANCE WITH SPECIFICATION 35 20 23.
AREA TO BE DREDGED
LOCKWOODS FOLLY INLET
CROSSING
OPTIONAL AREA TO BE
DREDGED
LOCKWOODS FOLLY
WIDENER
2-
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2 -
-12
CENTERLINE
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AutoCAD SHX Text N
WATER LINE
HOLDEN BEACH
2235000
63000
2232000
60000
T
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SLOPE INTERCEPT
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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'
SCALE: 1" = 500'
SCALE IN FEET
500 1000 15001000 500 0
MIN. 75' WIDE
CONSTRUCTION
BERM
MIN. 75' WIDE
CONSTRUCTION
BERM
MIN. 75'
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A T L A N T I C O C E A N
LENGTH WILL BE DETERMINED
DURING CONSTRUCTION AND WILL
BE DEPENDANT ON QUANTITY OF
MATERIAL PLACED ON BEACH
TYPICAL BEACH PLACEMENT SECTION
W
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KINGS LYNN DRIVE
OAK ISLAND
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MCCRAY STREET
OCEAN BLVD. E
3000' APPROXIMATE LIMITS OF PLACEMENT AREA
W
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60000
2238000
60000
APPROXIMATE LIMITS OF
PLACEMENT AREA
3,000'
60000
2235000
APPROX. PIPELINE ROUTE (TYP.)
TOTAL PIPELINE LENGTH
APPROX. 5,200'
GENERAL NOTES
1. HORIZONTAL DATUM NAD 1983.
2. PHOTOGRAPHY DATE: 07 JANUARY 2021. COPYRIGHT 2021 DIGITAL GLOBE.
3. AREAS TO BE DREDGED SHOWN THUS -
4. FOR DETAILS OF THE AREAS TO BE DREDGED, SEE SHEETS CN103.
BEACH DISPOSAL NOTES
1. DUE TO THE AGE OF PHOTOGRAPHY, PIPELINE ROUTE SHOWN IS APPROXIMATE. PRIOR TO PLACEMENT OF
PIPE, THE CONTRACTOR SHALL MEET ON SITE 7 TO 10 CALENDAR DAYS WITH THE CONTRACTING OFFICER'S
REPRESENTATIVE AND A REPRESENTATIVE FROM THE NORTH CAROLINA WILDLIFE RESOURCES COMMISSION TO
DETERMINE THE EXACT PIPELINE ROUTE. THE AGREED UPON PIPELINE LANDING SPOT ON HOLDEN BEACH SHALL BE
SURVEYED OR OTHERWISE LOCATED AND PROVIDED TO THE CONTRACTING OFFICER OR HIS/HER DESIGNATED
REPRESENTATIVE. CONTRACTOR SHALL NOTIFY THE TOWN OF HOLDEN BEACH NO LESS THAN 15 DAYS PRIOR TO
COMMENCEMENT OF PIPELINE PLACEMEN. TOWN POINT OF CONTACT IS TOWN MANAGER DAVID HEWITT PHONE
NUMBER (910) 842-6488.
2. VERTICAL DATUM NAVD 1988. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ESTABISHING HORIZONTAL AND
VERTICAL CONTROL PRIOR TO PLACEMENT OF DREDGED MATERIAL IN THE DESIGNATED PLACEMENT AREA.
3. THE CONTRACTOR SHALL BEGIN PLACEMENT OF DREDGED MATERIAL ON THE BEACH AT THE DESIGNATED
PLACEMENT AREA OR AS DIRECTED BY THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE.
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'S REPRESENTATIVE
IMMEDIATELY PRIOR TO START OF DREDGING AND PLACEMENT OPERATIONS. PLACEMENT OF THE BERM SHALL
CONTINUE DOWN THE BEACH AS FAR AS THE QUANTITY OF DREDGED MATERIAL WILL ALLOW. THE WIDTH OF THE
BERM WILL BE DETERMINED BY THE ESTIMATED QUANTITY OF THE BEFORE DREDGE SURVEY AND MAY BE ADJUSTED
AT THE DISCRETION OF THE CONTRACTING OFFICER AND/OR HIS/HER REPRESENTATIVE.
4. 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 CONTOUR, THE CONTRACTOR SHALL CONSTRUCT THE
BACKSLOPE TO THE NATURAL ANGLE OF REPOSE.
5. ALL WORK ON THE BEACH, INCLUDING PIPE REMOVAL, SHALL BE COMPLETED BY 31 MARCH 2022. SEE
PARAGRAPH ENVIRONMENTAL WINDOWS OF SECTION 01 57 19 OF THE SPECIFICATIONS FOR ENVIRONMENTAL
WINDOWS AND RESTRICTIONS.
6. 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.
7. CONTRACTOR SHALL POST SIGNS AT BOTH ENDS OF ACTIVE WORK AREAS IN ACCORDANCE WITH SECTION 01 35 26.
N: 61058.6962
E: 2228473.7335
APPROX. START POINT OF
BEACH PLACEMENT
0+00
5+00
10+00
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7.
8.
B162
B161A
B162A
CONTOUR
-12
NAVIGATION AIDS
LEGEND
AREA TO BE DREDGED
SOUNDINGS
200100
SCALE IN FEET
300200
SCALE: 1:2000
NOTES
DESCRIPTION EASTING NORTHING
HORIZONTAL DATUM NAD 1983. VERTICAL DATUM MEAN LOWER LOW WATER (M.L.L.W.)
SOUNDINGS ARE EXPRESSED IN FEET AND TENTHS AND REFER TO NOAA'S REPORTED
MEAN LOWER LOW WATER (M.L.L.W.) RELATIVE TO THE 1983 - 2001 TIDAL EPOCH.
PROJECT SURVEYED MARCH 19, 2021 WITH DISTRICT SURVEY VESSEL "ROGERS"
USING RTK GPS HORIZONTAL POSITIONING EQUIPMENT AND 200 KHZ SOUNDING
EQUIPMENT.
TIDE GAGE LOCATED AT: INLET WATCH MARINA.
THE INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULT OF SURVEYS
MADE ON THE DATE INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE
GENERAL CONDITIONS EXISTING AT THAT TIME.
NAVIGATION AIDS LOCATED BY SURVEY VESSEL, ACCURACY +/- 3 METERS.
EASTING AND NORTHING COORDINATES ARE IN FEET.
THE GOVERNMENT FURNISH PLACEMENT AREA FOR DREDGED MATERIAL IS THE SOUTH
END OF MASONBORO ISLAND. FOR LOCATION OF PLACEMENT AREA SEE SHEET CN106.
CONTRACTOR SHALL HAVE SIGNS SET UP ON EITHER END OF THE DREDGING ARE A AND AT ALL
SUBMERGED PIPELINE CROSSINGS IN ACCORDANCE WITH SPECIFICATION 35 20 23.
2329940 111951
2328851 111738
2327924 111708
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SECTION 5 TANGENT 4
N 112,167.9
E 2,330,905.8
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N 112,251.9
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E 2,330,001.9
"162"
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AutoCAD SHX Text -22.1'
AutoCAD SHX Text N
AutoCAD SHX Text 2330000
AutoCAD SHX Text 111000
AutoCAD SHX Text 2333000
AutoCAD SHX Text 114000
AutoCAD SHX Text 2333000
AutoCAD SHX Text 112000
AutoCAD SHX Text 15+00
AutoCAD SHX Text 90'
AutoCAD SHX Text
SCTAIWW-07-V-12
AutoCAD SHX Text
"164"
NOTES
DESCRIPTION EASTING NORTHING
M.L.L.W.
VARIES
CONTOUR
-12
NAVIGATION AIDS
LEGEND
AREA TO BE DREDGED
SOUNDINGS
200100
SCALE IN FEET
300200
SCALE: 1:2000
CHANNEL PRISM
LINE (TYP)
(TYP)
REQUIRED
NOT TO SCALE
TYPICAL DREDGING SECTION
2' ALLOWABLE
OVERDEPTH
DEPTH
1.
2.
3.
4.
5.
6.
7.
8.
HORIZONTAL DATUM NAD 1983. VERTICAL DATUM MEAN LOWER LOW WATER (M.L.L.W.).
SOUNDINGS ARE EXPRESSED IN FEET AND TENTHS AND REFER TO NOAA'S REPORTED
MEAN LOWER LOW WATER (M.L.L.W.) RELATIVE TO THE 1983-2001 TIDAL EPOCH.
PROJECT SURVEYED 19 MARCH 2021 WITH DISTRICT SURVEY VESSEL "ROGERS"
USING RTK GPS HORIZONTAL POSITIONING EQUIPMENT AND 200 KHZ SOUNDING
EQUIPMENT.
TIDE GAGE LOCATED AT: INLET WATCH MARINA.
THE INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULT OF SURVEYS
MADE ON THE DATE INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE
GENERAL CONDITIONS EXISTING AT THAT TIME.
NAVIGATION AIDS LOCATED BY SURVEY VESSEL, ACCURACY +/- 3 METERS.
EASTING AND NORTHING COORDINATES ARE IN FEET.
THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL IS THE
SOUTH END OF MASONBORO ISLAND. FOR LOCATION OF PLACEMENT AREA SEE SHEET
CN106.
CONTRACTOR SHALL HAVE SIGNS SET UP ON EITHER END OF THE DREDGING ARE A AND
AT ALL SUBMERGED PIPELINE CROSSINGS IN ACCORDANCE WITH SPECIFICATION 35 20
23.
LT161 2,336,390 114,318
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E 2,336,147.2
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E 2,335,950.7
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E 2,335,585.8
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E 2,335,359.3
N 113,897.5
E 2,335,391.7
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SECTION 5 TANGENT 4
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E 2,336,601.1
N 115,484.8
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N 113,869.9
E 2,335,069.8
N 113,785.9
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