A21 - W912PM23B0018_Channel-to-Back-Sound_Maintenance-Dredging_Plans_RTA_rev1_Locked.pdf
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- Attached to
- Back Sound to Lookout Bight Maintenance Dredging
- Solicitation number
- W912PM23B0018
About this file
This document package provides plans and specifications for the Back Sound to Lookout Bight Maintenance Dredging project in Carteret County, North Carolina. The solicitation is being conducted by the U.S. Army Corps of Engineers Wilmington District. Dredging is required for the Federal Navigation Channel to Back Sound, Federal Navigation Channel Lookout Bight, and the National Park Service Channel near Cape Lookout. Dredged material will be placed on Bird Island, also known as Sandbag Island, and Cape Lookout Beach. The specifications include pre-construction surveys, dredging and placement limits, construction details for the placement areas, and turbidity control requirements. The schedule requires maintenance dredging to authorized depths in the identified channels, with a project completion date in 2023.
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Cape Hatteras
Cape Lookout
LOCK & DAM
NO. 1
ISSUE DATE:
US Army Corps of Engineers ®
SOLICITATION NO.:
CONTRACT NO.:
WILIMINGTON DISTRICT
TBD
SEPTEMBER 2023
W912PM23B0018
BACK SOUND TO LOOKOUT BIGHT
MAINTENANCE DREDGING
CARTERET COUNTY, NORTH CAROLINA
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Sheet Number Sheet Title
G001 COVER SHEET
GI001 PROJECT OVERVIEW & SHEET LAYOUT
CN101 CHANNEL TO BACK SOUND
CN102 CHANNEL TO LOOKOUT BIGHT
CN103 NPS CHANNEL LIGHTHOUSE
CN104 CAPE LOOKOUT BEACH PLACEMENT EXTENTS
CN105 BIRD ISLAND PLACEMENT AREA
CN301 PROPOSED BIRD ISLAND PLACEMENT SECTION
VIEW STA. -4+50 TO 3+00
CN302 PROPOSED BIRD ISLAND PLACEMENT SECTION
VIEW STA. 3+50 TO 4+00
CN501 CONCEPTUAL DESIGN AND DETAILS
CN502 TURBIDITY CURTAIN/BARRIER DETAIL
PROJECT LOCATION
Approval Recommended: *
Approved: *
DATE
DATE
SIGNATURES AFFIXED BELOW INDICATE OFFICIAL RECOMMENDATION
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
AND APPROVAL OF ALL DRAWINGS IN THIS SET AS INDEXED ON SHEET G001.
FEDERAL NAVIGATION
CHANNEL TO BACK SOUND
SEE SHEET CN101.
PLACEMENT AREA IS BIRD
ISLAND.
BIRD ISLAND PLACEMENT
AREA. SEE SHEET CN105.
CAPE LOOKOUT BEACH
PLACEMENT. SEE SHEET
CN104 FOR DETAILS.
FEDERAL NAVIGATION CHANNEL
LOOKOUT BIGHT. SEE SHEET CN102.
NATIONAL PARK SERVICE CHANNEL.
SEE SHEET CN103.
PLACEMENT AREA IS LOCATED ON
CAPE LOOKOUT BEACH.
HARKERS ISLAND
SHACKLEFORD BANKS
BACK SOUND
LOOKOUT BIGHT
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GENERAL SHEET NOTES
1. UNLESS OTHERWISE DIRECTED BY THE CONTRACTING OFFICER OR HIS/HER DESIGNATED
REPRESENTATIVE, THE ORDER OF WORK SHALL BE AT THE DISCRETION OF THE CONTRACTOR.
2. HORIZONTAL DATUM: NAD 1983, NORTH CAROLINA STATE PLANE FEET.
3. SEE SHEETS CN101 THRU CN103 FOR DREDGING AREAS, & CN104 THRU CN105 FOR PLACEMENT
AREAS.
4. PRIOR TO MOBILIZATION OF PLANT AND EQUIPMENT, THE CONTRACTOR SHALL BE
RESPONSIBLE FOR PERFORMING AN INSPECTION OF EXISTING STRUCTURES AND ALL PROJECT
SITE AREAS TO BE UTILIZED OR DISTURBED BY THE CONTRACTOR'S OPERATIONS. THE
CONTRACTOR SHALL ARRANGE FOR THE CONTRACTING OFFICER OR HIS/HER DESIGNATED
REPRESENTATIVE TO BE PRESENT DURING EACH INSPECTION. THE CONTRACTOR SHALL
ARRANGE FOR THE CONTRACTING OFFICER OR HIS/HER DESIGNATED REPRESENTATIVE TO BE
PRESENT DURING EACH INSPECTION. THE CONTRACTOR SHALL GIVE A MINIMUM OF 10 DAYS
WRITTEN NOTICE PRIOR TO EACH INSPECTION IN ACCORDANCE WITH SPECIFICATION SECTION
25 20 23 SUBSECTION 1.10.1 NOTICE TO THE GOVERNMENT.
5. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED MATERIAL FROM THE
FEDERAL NAVIGATION CHANNEL TO BACK SOUND IS A NEARBY BIRD ISLAND. FOR THE PURPOSE
OF THIS CONTRACT THE TERM BIRD ISLAND AND SANDBAG ISLAND ARE USED
INTERCHANGEABLY. SEE SHEET CN105 FOR DETAILS. THE GOVERNMENT & NATIONAL PARK
SERVICE FURNISHED PLACEMENT AREA FOR FEDERAL NAVIGATION DEEP WATER CHANNEL
LOOKOUT BIGHT & NATIONAL PARK SERVICE CHANNEL IS CAPE LOOKOUT BEACH. SEE SHEET
CN104 FOR DETAILS.
PROJECT OVERVIEW
SCALE: 1"=2000'
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-5
-2
-2
-7
-2
-5
-3
-4
-3
-3
-6
-3
-5
-3
-4
-5
-6
-5
-3
-1
-3 5-5
-3
-3
-3
-6
-6
-7
-7
-2
-5
-3
-3
-3
-5
-6
-7
-1
-5
-3
-2
-3
-5
-3
-3
-4
-3
-3
-7
-3
-8
-3
-3
-6
-4
-3
-3
-2
-4
-3
-3
-2
-4
-2
-3
-2
-3
-3
-2
-2
-4
-3
-4
-3
-3
-5
-1
-7
-1
-8
-9
-3
-9
-3
-3
-1
-5
-2
-6
-5
-3
-5
-3
-6
-3
-6
-4
-6
-3
-5
-7
-3
-4
-3
-3
-5
-4
-1
-5
-3
-6
-3
-4
-4
-3
-3
-2
-2
-2
-6
-2
-9
-2
-2
-3
-3
-4
-6
-3
-5
-2
-6
-4
-3
-3
-4
-7
-8
-4
-3
-3
-5
-3
-2
-7
-1
-2
-6
-2
-8
-3
-3
-3
-1
-5
-7
-2
-9
-6
-3
-4
-6
-3
-2
-5
-3
-5
-3
-5
-2
-3
-2
-4
-2
-3
-5
-2
-6
-7
-3
-3
-1
-8
-3
-8
-2
-3
-3
-3
-3
-3
-6
-3
-6
-5
-1
-1
-3
-5
-2
-7
-3
-7
-1
-0
-0
-3
-3
-5
-4
-1
-5
-5
-1
-5
-3
-4
-3
-3
-3
-3 4 -3
-5
-5
-6
-6
-6
-3
-7
-0
-3
-4
-3
-2
-3
-8
-1
-7
-8
-6
-2
-6
-3
-3
-5
-2
-7
-7
-6
-5
-3
-4
-7
-4
-1
-5
-6
-5
-3
-2
-3
-3
-3
-4
-3
-3
-7
-3
-0
-7
-9
-8
-4
-4
-3
-5
-3
-2
-3
-3
-2
-4
-0
-7
-3
-2
-5
-4
-3
-3
-5
-8
-4
-3
-9
-6
-3
-8
-3
-7
-3
-5
-7
-6
-5
-4
-4
-5
-3
-3
-3
-4
-0
-3
-3
-6
-5
-3
-0
-4
-3
-2
-6
-4
-3
-5
-3
-4
-9
-3
-4
-6
-4
-7
-6
-3
-3
-7
-3
-9
-3
-3
-2
-2
-1
-3
-7
-3
-3
-4
-4
-5
-6
-3
-3
-3
-7
-4
-4
-3
-4
-3
-2
-3
-4
-2
-4
-2
-3
-1
-6
-3
-3
-4
-3
-5
-3
-6
-2
-3
-8
-2
-5
-4
-3
-8
-7
-6
-8
-5
-1
-7
-4
-0
-6
-3
-3
-3
-8
-3
-2
-4
-3
-3
-6
-8
-3
-3
-7
-5
-6
-7
-4
-4
-3
-1
-6
-3
-7
-4
-2
-2
-8
-8
-7
-6
-2
-2
-2
-3
-3
-5
-2
-2
-3
-3
-7
-3
-8
-5
-2
-3
-8
-3
-3
-5
-7
-3
-4
-7
-2
-7
-1
-5
-2
-6
-2
-3
-3
-5
-3
-3
-3
-7
-2
-3
-3
-3
-2
-3
-6
-3
-4
-3
-7 1 -3
-4
-3
-2
-3
-4
-1
-2
-2
-3
-6
-3
-0
-2
-3
-3
-3
-2
-4
-3
-4
-7
-9
-6
-3
-3
-2
-6
-7
-2
-4
-3
-4
-3
-3
-3
-6
-4
-2
-5
-3
-3
-5
-8
-3
-3
-3
-3
-3
-3
-3
-7
-4
-3
-5
-4
-2
-1
-3
-8
-2
-6
-4
-8
0'
N: 348,121.11 E: 2,743,593.94
N: 348,098.97 E: 2,743,496.41
M
AT
C H
L
IN
E
- S
TA
. 5
2+
-7-7
CL-04-V-5
CL-04-V-2CL-04-V-4
CL-04-V-3
CLO-22-V-002 CLO-22-V-003 CLO-22-V-004 CLO-22-V-005 CLO-22-V-006 CLO-22-V-007
0+00 5+00 10+00 15+00 20+00 25+00 30+00 35+00 40+00 45+00 50+00 55+00
CENTERLINE OFFSET
CHANNEL PRISM LINECHANNEL CENTER LINE
OUT OF SERVICE UTILITY LINE
-1
-2
-0
-6
-1
-6
-1
-1
-4
-1
-3
-6
-1
-1
-8
-1
-5
-1
-1
-5
-1
-2
-0
-1
-1
-0
-4
-0
-2
-0
-1
-1
-3
-2
-4
-0
-5
-4
-1
-0
-3
-6
-9
-0
-2
-1
-0
-5
-1
-1
-1
-0
-1
-3
-2
-0
-1
-3
-1
-0
-1
-0
-0
-1
-7
-3
-6
-2
-1
-6
-1
-0
-4
-4
-0
-0
-3
-0
-1
-0
-4
-0
-6
-5
-1
-2
-1
-0
-2
-1
-4
-1
-1
-5
-2
-0
-4
-3
-2
-5
-1
-3
-1
-2
-1
-4
-1
-0
-1
-2
-0
-3
-0
-1
-0
-0
-0
-0
-3
-0
-5
-2
-5
-3
-0
-2
-0
-0
-2
-0
-0
-3
-0
-0
-6
-2
-1
-4
-0
-3
-5
-6
-1
-1
-3
-4
-1
-1
-0
-6
-5
-0
-4
-2
-3
-1
-2
-0
-1
-1
-6
-3
-2
-2
-2
-1
-1
-1
-5
-1
-3
-8
-4
-4
-4
-1
-2
-4
-1
-0
-5 5-3
-0
-1
-2
-0
-2
-4
-0
-0
-4 4-0
-2
-9
-1
-2
-1
-4
-1
-2
-2
-2
-9
-2
-4
-3
-1
-1
-0
-1
-2
-6
-0
-2
-6
-2
-2
-1
-5
-1
-0
-0
-1
-1
-1
-8
-2
-2
-4
-2
-4
-4
-1
-2
-2
-1
-2
-1
-1
-0
-2
-0
-8
-8
-5 6-0
-1
-1
-4
-1
-0
-4
-1
-3
-1
-5
-2
-4
-7
-2
-1
-2
-1
-1
-1
-1
-0
-0
-0
-1
-7
-1
-6
-3
-2
-1
-1
-1
-2
-7
-4
-6
-5
-4
-3
-5
-1
-1
-4
-1
-2
-1
-1
-2
-0
-1
-1
-0
-0
-0
-5
-0
-2
-1
4-1
-2
-0
-6
-1
-1
-3
-3
-3
-1
-1
-1
-1
-0
-1
-4
-2
-0
-4
-5
-2
-2
-3
-9
-1
-1
-1
-2
-4
-2
-1
-1
-3
-2
-1
-1
-1
-4
-6
-0
-2
-1
-3
-1
-1
-1
-1
-2
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-9
-1
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-4
-1
-2
-1
-1
-3
-4
-4
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-3
-2
-1
-1
-7
-0
-4
-6
-4
-3 1-0
-1
-3
-7
-5
-0
-1
-2
-3
-1
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-1
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-1
-2
-2
-2
-6
-1
-8
-1
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-1
-2
-1
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-5
-1
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-6
-2
-5
-2
-1
-4
-5
-2
-3
-7
-7
-0
-1
-2
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-0
-8
-0
-8
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-1
-2
-4
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-3
-3
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-1
-9
-1
-1
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-1
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-1
-5
-4
-0
-1
-2
-5
-2
-1
-1
-1
-0
-0
-1
-2
-5
-3
-0
-5
-1
-5
-0
-4
-1
-1
-1
-1
-2
-1
-6
-0
-7
-1
-0
-5
-4
-4
-1
-4
-4
-1
-1
-2
-3
-5
-5
-1
-4
-7
-1
-2
-9
-2
-1
-2
-1
-3
-4
-1
-7
-2
-1
-7
-2
-3
-4
-2
-4
-4 3 -5
-3
-1
-1
-1
-6
-1
-0
-4
-1
-2
-8
-7
-6
-6
-1
-1
-1
-4
-8
-1
-4
-1
-4
-1
-0
-4
-5
-1
-3
-7
-1
-5
-1
-1
-5
-9
-4
-1
-3
-0
-4
-5
-4
-0 4 -4
-4
-1
-4
-0
-1
-7
-1
-1
-3
-2
-3
-1
-0
-0
-8
-2
-2
-6
-9
-1
-0
-7
-4
-2
-5
-2
-4
-1
-4
-4
-6
-3
-3
-1
-6
-7
-1
-2
-3
-1
-7 5 -1
-4
-4
-4
-1
-6
-1
-4
-3
-2
-1
-5
-4
-4
-1
-1
-4
-3
-1
-5
-2
-2
-5
-4
-1
-1
-7
-3
-6
-1
-3
-5
-6
-6
-0
-5
-4
-1
-1
-5
-1
-0
-4
-3
-9
-7
-7
-1
-3
-5
-2
-2
-1
-1
-1
-1
-5
-0
-1
-4
-6
-1
-2
-9
-3
-4
-1
-0
-4
-5
-1
-1
-7
-2
-9
-3
-6
-0
-6
-1
-0
-2
-1
-0
-3
-4
-6
-1 0 0
-1
-6
-1
-5
-2
-1
-3
-4
-1
-3
-4
-3
-5
-0
-0
-2
-3
-1
-1
-6
-1
-1
-1
-0
-1
-8
-0
-1
-9
-1
-4
-5
-3
-3
-6
-7
-2
-1
-0
-7
-4
-4
-1
-6
-3
-1
-1
-4
-2
-2
-5
-2
-1
-1
-1
-1
-5
-2
-2
-3
-4
-5
-2
-3
-1
-7
-4
-6
-2
-7
-1
-0
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-5
-1
-5
-1
-1
-2
-1
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4 -0
-2
-1
-1
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-1
-1
-4
-1
-1
-1
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-4
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2-1
-3
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-1
-1
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-1
-1
-1
-1
-1
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-1
-1
-1
-1
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-7
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-1
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-3
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-4
-1 3 -1
-6
-1
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-3
-1
-5
-4
-1
-1
-9
-4
-3
-0
-0
-2
-1
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-2
-7
-8
-6
-5
-3
-1
-1
-4
-4
-5
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-1
-7
-1
-1
-1
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-2
-1
-2
-3
-3
-1
-1
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-5
-3
-6
-1
-3
-5
-2
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-1
-1
-1
-0
-1
-7
-3
-1
-0
-4
-4
-7
-1
-1
-0
-5
-1
-1
-3
-9
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-0
-2
-6
-1
-8
-2
-9
-1
-1
-7
-2
-4
-1 4 -1
-6
-3
-6
-1
-0
-2
-1
-1
-4
-0
-2
-9
-1
-4
-2
-1
-2
-1
-4
-0
-0
-6
-1
-1
-1
-2
-4
-4
-1
-3
-1
-1
-8
-0
-4
-6
-5
-4
-6
-5
-0
-2
-1
-1
-0
-4
-1
-1
-6
-4
-1
-5
-5
-5
-1
-0
-2
-2
-3
-1
-1
-8
-9
-1
-6
-5
-2
-0
-1
-5
-1
-1
-3
-2
-3
-1
-0
-3
-1
-2
-1
-2
-9
-2
-1
-1
-1
-8
-1
-2
-5
-3
-1
-2
-1
-1
-6
-4
-6
-1
-9
-1
-1
-0
-5
-5 4-5
-4
-1
-4
-4
-3
-1
-4
-2
-6
-1
-4
-9
-6
-2
-0
-7
-0
-2
-1
-4
-5
-1
-4
-5
-1 4 -1
-2
-2
-5
-6
-6
-4
-2
-2
-7
-0
-0
-1
-3
-3
-4
-7
-3
-1
-4
-6
-1
-0
-1
-7
-5
-4
-3
-4
-1
-1
-3
-1
-4
-1
-1
-5
-2
-1
-1
-1
-2
-1
-5
-2
-1
-2
-7
-1
-1
-6
-1
-1
-3
-5
-2
-9
-3
-1
-2
-2
-6
-1
-7
-8
-1
-2
-1
-3
-1
-2
-1
-1
-1
-1
-1
-1
-2
-2
-0
-5
-0
-2
-1
-7
-7
-1
-3
-1
-5
-4
-1
-2
-1
-1
-5
-1
-5
-6
-2
-5
-1
-3
-1
-1
-3
-0
-9
-3
-1
-9
-1
-2
-1
-1
-1
-5
-2
-1
-1
-5
-4
-2
-2
-1
-3
-9
-5
-5
-3
-4
-2
-0
-1
-1
-1
-4
-3
-1
-3
-9
-1
-1
-1
-1
-0
-2
-1
-1
N: 340,990.60 E: 2,745,212.46
N: 340,968.47 E: 2,745,114.95
M
AT
C H
L
IN
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TA
. 5
2+
-7
-7
CL-04-V-2
CL-04-V-1
CL-04-V-2ACLO-22-V-007 CLO-22-V-008
50+00 55+00 60+00 65+00 70+00 75+00 80+00 85+00 90+00 95+00 100+00 105+00
CENTERLINE OFFSET
CHANNEL PRISM LINECHANNEL CENTER LINE
OUT OF DATE UTILITY LINE
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
SU
BM
IT
TE
D B
Y:
C H
EC
KE
D B
Y:
D R
AW
N
B Y:
D
ES
IG
N
ED
B
Y:
C O
N
TR
AC
T
N O
SO
LI
C
IT
AT
IO
N N
O
IS
SU
E D
AT
E:
SI
ZE
M
AR
K
D
ES
C R
IP
TI
O N
D
AT
E
SHEET ID
1. ELEVATIONS ARE IN FEET AND REFER TO NOAA'S REPORTED MEAN LOWER LOW WATER (MLLW) RELATIVE TO THE 1983-2001 TIDAL
EPOCH.
2. PROJECT SURVEYED 27 MARCH 2023 AND 05 APRIL 2023 WITH DISTRICT SURVEY VESSEL "WALT", USING RTK GPS HORIZONTAL GLOBAL
POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
3. HORIZONTAL DATUM NAVD 83. VERTICAL DATUM M.L.L.W.
4. TIDE GAGE LOCATED AT: US PARK SERVICE DOCK.
USE FOR TIDE VALUES FOR THIS GAGE ARE RESTRICTED TO QUALITY ASSURANCE PURPOSES FOR VERIFICATION OF RTK TIDES. THE WILMINGTON DISTRICT WILL ONLY USE STAFF GAGE TIDAL VALUES FOR FINAL MAPPING AND QUANTITY CALCULATIONS IF RTK GPS IS
UNAVAILABLE AT THE TIME OF SURVEY.
5. THE 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. THESE CONDITIONS ARE SUBJECT TO RAPID CHANGE DUE TO SHOALING EVENTS. A PRUDENT MARINER SHOULD NOT RELY EXCLUSIVELY ON THE INFORMATION PROVIDED HERE.
REQUIRED BY 33 CFR 209.325.
6. NAVIGATION AIDS LOCATED WITH DISTRICT SURVEY VESSEL, ACCURACY +/- 3 METERS.
EASTING NORTHING
NONE
7. PLACEMENT AREA FOR DREDGED MATERIAL SHALL BE ON "SANDBAG ISLAND". SEE SHEET CN105 FOR INFORMATION.
8. OUT OF DATE UTILITY CABLE BASED ON LORAN POSITIONS DATED SEPTEMBER 1993.
9. DREDGE LIMITS MAY BE ADJUSTED FOLLOWING THE BEFORE DREDGE SURVEY.
SOUNDING
NAVIGATION AIDS
ABANDONED NAVIGATION AID
SINKER AND CHAIN
-12 CONTOUR
AREA TO BE DREDGED
-12.0
LEGEND
BORING LOCATION
CHANNEL PRISM
LINE (TYP)
M.L.L.W.
3(TYP)
REQUIRED DEPTH
TYPICAL DREDGING DETAIL
N.T.S.
-7
100'
2' ALLOWABLE
OVERDEPTH
Feet 0 200 400
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GENERAL SHEET NOTES
US Army Corps of Engineers
U .S
. A R
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C O
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PS
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EN
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IN
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SCALE: 1"=200'
OUT OF SERVICE UTILITY LINE
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N: 328,094.62 E: 2,742,138.73
N: 328,128.57 E: 2,742,044.67
N: 325,999.49 E: 2,741,382.53
N: 326,056.08 E: 2,741,296.64
N: 325,271.59 E: 2,740,604.52
N: 325,344.62 E: 2,740,536.20
NATIONAL PARK SERVICE CHANNEL
SHORELINE
SHORELINE
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
B4
B6
B8
B3
B5 B9
B7
B2
0+00
5+00
10+0015+00 20+00
25+00 30+00
33+65.04 CENTERLINE OFFSET
CHANNEL PRISM LINE
CHANNEL CENTERLINE
CLO-05-V-14
CLO-05-V-15
CLO-22-V-015
CLO-22-V-016 CLO-22-V-017
CLO-22-V-018
CLO-22-V-019
CLO-22-V-020
CLO-22-V-021
GENERAL SHEET NOTES:
SOUNDING
NAVIGATION AIDS
ABANDONED NAVIGATION AID
SINKER AND CHAIN
-7 CONTOUR
AREA TO BE DREDGED
-7.0
LEGEND
BORING LOCATION
1. HORIZONTAL DATUM NAD83. VERTICAL DATUM M.L.L.W.
2. SOUNDINGS ARE EXPRESSED IN FEET AND REFER TO NOAA'S
REPORTED MEAN LOWER LOW WATER (MLLW) RELATIVE TO THE
1983-2001 TIDAL EPOCH.
3. PROJECT SURVEYED 14 SEPTEMBER 2022 WITH DISTRICT SURVEY
VESSEL "ROGERS", USING RTK GPS HORIZONTAL GLOBAL
POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
4. TIDE GAGE LOCATED AT: US PARK SERVICE DOCK.
5. NAVIGATION AIDS LOCATED WITH DISTRICT SURVEY VESSEL,
ACCURACY +/- 3 METERS. EASTING AND NORTHING COORDINATES
ARE IN FEET.
DESCRIPTION EASTING NORTHING
B4 2,740,752.97 325,485.31 B6 2,741,460.77 326,022.31 B8 2,742,300.60 327,461.80 B3 2,739,835.28 325,557.10 B5 2,741,147.17 326,095.77 B9 2,742,064.54 328,196.57 B7 2,742,161.26 328,596.03 B2 2,739,277.10 325,266.03
6. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED
MATERIAL WILL BE ON "LIGHTHOUSE BEACH". SEE SHEET CN104
FOR INFORMATION.
7. FEDERAL NAVIGATION CHANNEL "LOOKOUT BIGHT" IS NOT BOUND
BY A FIXED AREA, BUT FOLLOWS DEEP WATER. AS A RESULT, THE
DEFINED DREDGE BOX WILL SHIFT TO FOLLOW THE DEEPEST
WATER AT THE TIME OF THE BEFORE DREDGE SURVEY.
CHANNEL PRISM
LINE (TYP)
M.L.L.W.
3(TYP)
REQUIRED DEPTH
TYPICAL DREDGING DETAIL
N.T.S.
-7
' 2' ALLOWABLE
OVERDEPTH
100'
SCALE: 1"=200'
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-6
-6
-7
-5
-2
-3
-1
-6
-7
-7
-6
-4
-6
-5
-5
-8
-1
-5
-4
-5
-7
-2
-1
-2
-3
-1
-8
-3
-8
-5
-0
-7
-5
-3
-1
4 -3
-7
-1
-8
-3
-5
-0
-6
-5
-7
-2
-6
-1
-8
-6
-4
-8
-1
-5
-5
-6
-7
-3
-8
-3
-1
-4
-9
-6
-0
-6
-1
-7
-5
-1
-1
-2
-1
-1
-5
-2
-8
-3
-5
-5
-7
-1
-1
-1
-8
-7
-1
-8
-1
-6
-1
-4
-6
-1
-1
-5
-6
-1
-5
-4
-8
-3
-1
-1
-1
-8
-6
-1
-1
-2
-8
-2
-3
-1
-5
-7
-1
-6
-1
-1
-6
-5
-1
-4
-3
-1
-1
-1
-1
-1
-5
-1
-1
-6
-6
-5
-4
-1
-6
-8
-6
-6
-2
-6
-1
-1
-5
-4
-3
-5
-2
-6
-9
-1
-2
-6
-1
-2
-2
-2
-5
-3
-1
-6
-1
-9
-4
-2
-1
-7
-2
-4
-1
-1
-4
-4
-4
-3
-4
-1
-3
-5
-6
-4
-3
-8
-3
-6
-7
-2
-1
-6
-8
-3
-1
-1
-3
-1
-1
-2
-4
-1
-1
-1
-1
-1
-5
-6
-1
-9
-1
-6
-3
-4
-9
-5
-2
-2
-6
-1
-5
-1
-6
-1
-1
-1
-5
-2
-7
-2
-6
-6
-4
-8
-4
-6
-1
-7
-4
-1
-1
-5
-1
-6
-6
-2
-0
-1
-1
-1
-8
-5
-1
-1
-3
-7
-3
-1
-4
-3
-5
-2
-5
-3
-7
-3
-4
-4
-1
-4
-1
-5
-4
-5
-1
-3
-1
-5
-6
-2
-1
-3
-1
-1
-2
-1
-4
-4
-5
-2
-6
-5
-3
-5
-7
-2
-6
-5
-5
-1
-1
-5
-5
-7
-4
-5
-4
-1
-2
-3
-4
-7
-4
-6
-5
-1
-6
-4
-4
-9
-1
-5
-1
-3
-1
-5
-3
-4
-4
-1
-9
-3
-5
-5
-1
-5
-5
-6
-6
-1
-4
-5
-1
-7
-1
-4
-6
-1
-5
-5
-7
-3
-2
-5
-7
-3
-6
-1
-7
-0
-1
-7
-8
-5
-1
-4
-7
-1
-6
-5
-6
-3
-1
-0
-1
-7
-3
-1
-6
-4
-4
-2
-4
-4
-9
-6
-7
-6
-5
-6
-1
-6
-1
-8
-4
-6
-5
-4
-3
-3
-8
-4
-1
-1
-6
-6
-1
-9
-5
-7
-4
-6
-1
-1
-1
-5
-6
-2
-1
-8
-1
-2
-9
-6
-0
-1
-6
-3
-1
-5
-0
-1
-2
-5
-3
-4
-5
-4
-1
-1
-4
-2
-2
-4
-9
-0
-4
-5
-6
-4
-4
-7
-7
-6
-4
-5
-5
-1
-4
-2
-2
-4
-1
-6
-7
-8
-4
-1
-3
-5
-5
-2
-2
-5
-6
-5
-1
-2
-1
-6
-8
-6
-8
-1
-3
-1
-6
-4
-3
-5
-3
-5
-8
-1
-5
-8
-6
-6
-4
-1
-9
-1
-5
-2
-3
-7
-5
-1
-4
-3
-1
-3
-4
-1
-5
-4
-6
-6
-7
-2
-7
-7
-8
-9
-6
-4
-2
-4
-7
-7
-6
-1
-2
-6
-2
-6
-3
-6
-5
-6
-5
-4
-3
-1
-3
-6
-2
-4
-6
-1
-9
-5
-1
-2
-7
-2
-9
-4
-7
-4
-1
-5
-7
-6
-5
-3
-1
-1
-5
-7
-5
-4
-2
-5
-3
-6
-1
-4
-1
-5
-1
-7
-4
-2
-0
-3
-5 5 -2
-5
-3
-1
-6
-6
-2
-3
-3
-8
-3
-3
-4
-6
-5
-3
-6
-7
-8
-3
-3
-5
-1
-2
-0
-6
-1
-5
-5
-5
-1
-5
-7
-5
-5
-2
-9
-1
-7
-1
-4
-3
-6
-1
-3
-5
-6
-6
-4
-5
-3
-2
-2
-5
-2
-6
-5
-4
-7
-1
-9
-2
-9
-1
-1
-6
-1
-9
-1
-6
-1
-2
-3
-4
-5
-6
-1
-3
-5
-6
-5
-5
-3
-5
-1
-2
-1
-3
-0
-4
-1
-3
-1
-5
-7
-5
-7
-3
-1
-5
-2
-2
-5
-5
-5
-1
-1
-2
-6
-8
-6
-0
-4
-1
-8
-2
-3
-1
-3
-1
-5
-4
-4
-9
-1
-1
-8
-9
-3
-1
-0
-2
-1
-7
-1
-9
-4
-2
-1
-6
-4
-4
-4
-2
-5
-3
-1
-2
-1
-1
-5
-7
-1
N: 327,407.66 E: 2,741,890.78
N: 327,369.87 E: 2,741,877.15
N: 326,940.40 E: 2,742,869.96
N: 326,904.24 E: 2,742,852.85
N: 325,271.59 E: 2,740,604.52
N: 325,344.62 E: 2,740,536.20
FEDERAL NAVIGATION CHANNEL
LOOKOUT BIGHT
SHORELINE
SHORELINE
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
B4
B6
B8
B3
B5 B9
B7
B2
40'
CLO-05-V-14
CLO-05-V-15
CLO-22-V-015
CLO-22-V-016
CLO-22-V-017
CLO-22-V-018
CLO-22-V-019
CLO-22-V-020
CLO-22-V-021
CHANNEL PRISM LINE
CHANNEL CENTERLINE
0+
5+
+0
0 10 +8
3.
GENERAL SHEET NOTES:
SOUNDING
NAVIGATION AIDS
ABANDONED NAVIGATION AID
SINKER AND CHAIN
-7 CONTOUR
AREA TO BE DREDGED
-7.0
LEGEND
BORING LOCATION
1. HORIZONTAL DATUM NAD83. VERTICAL DATUM M.L.L.W.
2. SOUNDINGS ARE EXPRESSED IN FEET AND REFER TO NOAA'S
REPORTED MEAN LOWER LOW WATER (MLLW) RELATIVE TO THE
1983-2001 TIDAL EPOCH.
3. PROJECT SURVEYED 14 SEPTEMBER 2022 WITH DISTRICT SURVEY
VESSEL "ROGERS", USING RTK GPS HORIZONTAL GLOBAL
POSITIONING EQUIPMENT AND 200 KHZ SOUNDING EQUIPMENT.
4. TIDE GAGE LOCATED AT: US PARK SERVICE DOCK.
5. THE 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 WITH DISTRICT SURVEY VESSEL,
ACCURACY +/- 3 METERS. EASTING AND NORTHING COORDINATES
ARE IN FEET.
DESCRIPTION EASTING NORTHING
B4 2,740,752.97 325,485.31 B6 2,741,460.77 326,022.31 B8 2,742,300.60 327,461.80 B3 2,739,835.28 325,557.10 B5 2,741,147.17 326,095.77 B9 2,742,064.54 328,196.57 B7 2,742,161.26 328,596.03 B2 2,739,277.10 325,266.03
7. THE GOVERNMENT FURNISHED PLACEMENT AREA FOR DREDGED
MATERIAL WILL BE ON "LIGHTHOUSE BEACH". SEE SHEET CN104
FOR INFORMATION.
8. DREDGE LIMITS MAY BE ADJUSTED FOLLOWING THE BEFORE
DREDGE SURVEY.
CHANNEL PRISM
LINE (TYP)
M.L.L.W.
3(TYP)
REQUIRED DEPTH
TYPICAL DREDGING DETAIL
N.T.S.
-7
' 1' ALLOWABLE
OVERDEPTH
40'
SCALE: 1"=200'
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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US Army Corps of Engineers
U .S
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Feet 0 200 400
-2
-2
-2
-1
-1
-1
+0
4.
0+00
1+00
2+00
3+00
4+00
5+00
6+00
7+
8+
9+
+0
+0
APPROX. TOE OF FILL
SEAWARD EDGE OF BERM
ELEV. +5' (NAVD88)
100'
N: 326,796.0 E: 2,744,074.6
N: 327,509.7 E: 2,744,908.9
CONSTRUCTION BASELINE
OUT DATED UTILITY CABLE
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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US Army Corps of Engineers
U .S
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TRANSITION DETAIL
N.T.S.
100'
APPROXIMATE LIMITS OF BEACH PLACEMENT AREA
35' WIDE
CONSTRUCTION
BERM
35' WIDE
CONSTRUCTION
BERM
100'
TIE INTO EXISTING
5' NAVD88 CONTOUR
TIE INTO EXISTING
5' NAVD88 CONTOUR
5'5' 5'5'
N.T.S.
EXISTING BEACH NATURAL SLOPE
ELEV. 5' NAVD88
35'
TYPICAL BEACH PLACEMENT SECTION
GENERAL SHEET NOTES
1. TOPOGRAPHIC SURVEY PERFORMED ON 19 APRIL 2023.
2. TYPICAL BEACH PLACEMENT SECTION DETAIL MAYBE REVISED BY THE GOVERNMENT
FOLLOWING THE PRECONSTRUCTION SURVEY.
3. SEE SPECIFICATION SECTION 01 57 19, PARAGRAPH EROSION AND SEDIMENT
CONTROL MEASURES FOR MONITORING REQUIREMENTS DURING PLACEMENT
OPERATIONS FOR BEACH PLACEMENT.
4. DREDGED MATERIAL FROM FEDERAL NAVIGATION CHANNEL LOOKOUT BIGHT &
NATIONAL PARK SERVICE CHANNEL IS TO BE PLACED ALONG CAPE LOOKOUT BEACH.
SEE SPECIFICATION SECTION 35 20 23, PARAGRAPHS "BEACH PLACEMENT", AND
"DREDGED MATERIAL PLACEMENT PLACEMENT PLAN".
5. THE SIDE SLOPES SHALL HAVE A NATURAL SLOPE, BUT SHALL HAVE A MINIMUM
SLOPE RATIO OF 20H:1V.
6. OUT DATED UTILITY CABLE BASED ON LORAN POSITIONS DATED SEPTEMBER 1993.
LEGEND
CONSTRUCTION LIMITS
TOP OF BERM
TOE OF FILL
PROPOSED GRADE SLOPE &
DIRECTION
SUB- AQUATIC VEGETATION
(SAV)
Feet 0 50 100
SCALE: 1"=50'
OUT OF DATE UTILITY CABLE
-5
-7+00
-6+00
-5+00
-4+00
-3+00
-2+00
-1+00
0+00
1+00
2+00
3+00
4+00
5+00
6+00
7+00
8+00
9+00
10+00
11+00
12+00
12+47.20
SSF
SSF
SSF
SSF
SSF
SSF
SSF
SSF
CONSTRUCTION LIMITS
APPROXIMATE TOE OF FILL
SEAWARD EDGE OF BERM
ELEV. +15' (NAVD88)
225'
CONSTRUCTION BASELINE
SUB-AQUATIC VEGETATION
(SAV)
GROUND TRUTHED
SAV PERIMETER
N: 346,399.4 E: 2,742,527.2
N: 346,459.2 E: 2,742,678.5
N: 346,456.5 E: 2,743,011.1
N: 346,274.2 E: 2,743,292.0
N: 346,103.4 E: 2,743,442.4
N: 345,821.8 E: 2,743,481.7
N: 345,522.3 E: 2,743,492.4
N: 345,388.9 E: 2,743,395.5
N: 345,265.5 E: 2,743,205.5
N: 345,235.3 E: 2,743,085.7
N: 345,274.9 E: 2,743,025.2
N: 345,514.5 E: 2,742,836.1
N: 345,750.1 E: 2,742,677.2
N: 346,085.4 E: 2,742,456.3
N: 346,258.6 E: 2,742,426.3
N: 346,331.2 E: 2,742,447.1
N: 346,490.8 E: 2,742,854.0
APPROXIMATE GEOTEXTILE TUBE PLACEMENT
APPROX. DIMENSIONS: 15'W x 50'L x 5'H
APPROX. 75 TOTAL FOR SINGLE LAYER
N: 346,541.0 E: 2,742,067.5
N: 345,511.3 E: 2,742,928.6
N: 345,067.9 E: 2,743,170.0
N: 345,584.3 E: 2,742,867.6
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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US Army Corps of Engineers
U .S
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GENERAL SHEET NOTES
1. SEE SPECIFICATION SECTION 01 57 19, PARAGRAPH EROSION AND SEDIMENT
CONTROL MEASURES FOR "SANDBAG ISLAND" FOR MONITORING REQUIREMENTS
DURING PLACEMENT OPERATIONS FOR BIRD ISLAND PLACEMENT.
2. DREDGED MATERIAL IS TO BE PLACED ALONG THE NORTH & NORTH EASTERN SIDE
OF "SANDBAG ISLAND". SEE SPECIFICATION SECTION 35 20 23, PARAGRAPHS "ISLAND
PLACEMENT", "SANDBAG ISLAND PLACEMENT AREA", "DREDGED MATERIAL
PLACEMENT PLACEMENT PLAN", AND SHEET CN501 FOR DETAILS ON DISPOSING
DREDGED MATERIAL.
3. GEOTEXTILE TUBES SHOWN ARE FOR PRELIMINARY PURPOSES. THEY SHALL BE
SIZED AND INSTALLED IN ACCORDANCE WITH MANUFACTURES RECOMMENDATIONS
AND SPECIFICATION SECTION 31 05 19.13.
4. CROSS SECTIONS CAN BE FOUND ON SHEETS CN301 & CN302.
5. THE SIDE SLOPES SHALL HAVE A NATURAL SLOPE, BUT SHALL NOT EXTEND PAST A
SLOPE RATIO OF 4H:1V DUE TO DREDGED MATERIAL CHARACTERISTICS. ANY SLOPE
GREATER THAN THIS HAS THE POTENTIAL FOR FAILURE..
6. GROUND TRUTH INVESTIGATION FOR SUBMERGED AQUATIC VEGETATION (SAV)
PERFORMED NOV. 2022.
7. FOR THE PURPOSE OF THIS CONTRACT THE TERM BIRD ISLAND AND SANDBAG
ISLAND ARE USED INTERCHANGEABLY.
LEGEND
CONSTRUCTION LIMITS
TOP OF BERM
TOE OF FILL
PROPOSED GRADE SLOPE &
DIRECTION
SUB- AQUATIC VEGETATION
(SAV)
SCALE: 1"=100'
TOP OF BERM
ELEV. = +15' (NAVD88)
EXISTING GROUND
4 MAX.
PROPOSED FILL
TYPICAL BIRD ISLAND PLACEMENT DETAIL
N.T.S.
GEOTEXTILE TUBE
Feet 0 100 200
PROPOSED GEOTEXTILE TUBE
SSF SSF PROPOSED TURBIDITY CURTAIN
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -4+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -4+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -3+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -3+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -2+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -2+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -1+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -1+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. -0+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 0+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 0+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 1+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 1+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 2+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 2+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 3+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
4 MAX.
ELEV. = 15'
GEOTEXTILE
TUBE
PROPOSED GROUND
EXISTING GROUND
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
SU
BM
IT
TE
D B
Y:
C H
EC
KE
D B
Y:
D R
AW
N
B Y:
D
ES
IG
N
ED
B
Y:
C O
N
TR
AC
T
N O
SO
LI
C
IT
AT
IO
N N
O
IS
SU
E D
AT
E:
SI
ZE
M
AR
K
D
ES
C R
IP
TI
O N
D
AT
E
SHEET ID
C
BS
-0 4-
C N
1_
SA
N
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BA
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SL
AN
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EC
TI
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S
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C
AR
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K
N
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T.
K
N
IG
H T
T.
H
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TO
N
ST
A.
-4 +5
TO
S
TA
. 3 +0
SE
C
TI
O N
V
IE
W
PR
O
PO
SE
D
B
IR
D
IS
LA
N
D P
LA
C
EM
EN
T
CN301
US Army Corps of Engineers
U .S
. A R
M Y
C O
R
PS
O F
EN
G
IN
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IL
IM
IN
G
TO
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N , N
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AR
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BA
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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
SU
BM
IT
TE
D B
Y:
C H
EC
KE
D B
Y:
D R
AW
N
B Y:
D
ES
IG
N
ED
B
Y:
C O
N
TR
AC
T
N O
SO
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C
IT
AT
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N N
O
IS
SU
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AT
E:
SI
ZE
M
AR
K
D
ES
C R
IP
TI
O N
D
AT
E
SHEET ID
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 3+50
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
BA
SE
LI
N
E
EL
EV
AT
IO
N (M
.L .L
.W
OFFSET (FT)
STA. 4+00
-20
-10
-20
-10
0 50 100 150 200 250 300 350 4000-50-100
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
SU
BM
IT
TE
D B
Y:
C H
EC
KE
D B
Y:
D R
AW
N
B Y:
D
ES
IG
N
ED
B
Y:
C O
N
TR
AC
T
N O
SO
LI
C
IT
AT
IO
N N
O
IS
SU
E D
AT
E:
SI
ZE
M
AR
K
D
ES
C R
IP
TI
O N
D
AT
E
SHEET ID
C
BS
-0 4-
C N
1_
SA
N
D
BA
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SL
AN
D _S
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TI
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D
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C
AR
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R
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K
N
IG
H T
T.
K
N
IG
H T
T.
H
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TO
N
ST
A.
+5
TO
S
TA
. 4 +0
SE
C
TI
O N
V
IE
W
PR
O
PO
SE
D
B
IR
D
IS
LA
N
D P
LA
C
EM
EN
T
CN302
US Army Corps of Engineers
U .S
. A R
M Y
C O
R
PS
O F
EN
G
IN
EE
R S
W
IL
IM
IN
G
TO
N D
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TR
IC
T
D
AR
LI
N G
TO
N
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W
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IN
G
TO
N , N
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TH
C
AR
O
LI
N
A
TB
D
SE
PT
EM
BE
R
D R
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IN
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FI
LE
N
AM
E:
AN
SI
D
W
2P M
B0
BA
C
K
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U N
D T
O L
O O
KO
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BI
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AI
N
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N
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ED
G
IN
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ET
C O
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TY
, N
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TH
C
AR
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LI
N
A
R
TA
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
SU
BM
IT
TE
D B
Y:
C H
EC
KE
D B
Y:
D R
AW
N
B Y:
D
ES
IG
N
ED
B
Y:
C O
N
TR
AC
T
N O
SO
LI
C
IT
AT
IO
N N
O
IS
SU
E D
AT
E:
SI
ZE
M
AR
K
D
ES
C R
IP
TI
O N
D
AT
E
SHEET ID
-6+00
-5+00
-4+00
-3+00
-2+00
-1+00
0+00
1+00
2+00
3+00
4+00
5+00
6+00
7+00
8+00
SSF
SSF
SSF
SSF
SSF
CONSTRUCTION LIMITS
TEMPORARY DIKE
TURBIDITY CURTAIN
GEOTEXTILE TUBE
DIKE
SSF
SSF
SSF
SSF
SSF
SSF
SS
F
-6+00
-5+00
-4+00
-3+00
-2+00
-1+00
0+00
1+00
2+00
3+00
4+00
5+00
6+00
7+00
8+00
SSF
SSF
SSF
SSF
SSF
CONSTRUCTION LIMITS
TURBIDITY CURTAIN
GEOTEXTILE TUBE
DIKE
POROUS BAFFLE
SSF
SSF
SSF
SSF
SSF
SSF
SS
F
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
SU
BM
IT
TE
D B
Y:
C H
EC
KE
D B
Y:
D R
AW
N
B Y:
D
ES
IG
N
ED
B
Y:
C O
N
TR
AC
T
N O
SO
LI
C
IT
AT
IO
N N
O
IS
SU
E D
AT
E:
SI
ZE
M
AR
K
D
ES
C R
IP
TI
O N
D
AT
E
SHEET ID
C
BS
-0 4-
C N
1_
D
ET
AI
LS
.D W
G
J.
C
AR
TE
R
T.
K
N
IG
H T
T.
K
N
IG
H T
T.
H
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TO
N
C O
N C
EP
TU
AL
D
ES
IG
N
D
ET
AI
LS
CN501
US Army Corps of Engineers
U .S
. A R
M Y
C O
R
PS
O F
EN
G
IN
EE
R S
W
IL
IM
IN
G
TO
N D
IS
TR
IC
T
D
AR
LI
N G
TO
N
A
VE
W
IL
M
IN
G
TO
N , N
O R
TH
C
AR
O
LI
N
A
TB
D
SE
PT
EM
BE
R
D R
AW
IN
G C
O D
E
FI
LE
N
AM
E:
AN
SI
D
W
2P M
B0
BA
C
K
SO
U N
D T
O L
O O
KO
U
T
BI
G H
T M
AI
N
TE
N
AN
C
E D
R
ED
G
IN
G C
AR
TE
R
ET
C O
U N
TY
, N
O R
TH
C
AR
O
LI
N
A
R
TA
CONCEPTUAL DREDGED EFFLUENT CONTROL SCHEMATIC 1
H
3H
SECTION A-A
TYPICAL SECTION FOR GEOTEXTILE TUBE PLACEMENT
GEOTEXTILE TUBE
FILLED W/ DREDGED
EFFLUENT.
GENERAL SHEET NOTES
1. SEE SPECIFICATION SECTION 35 20 23, PARAGRAPH
"WORK PLAN", "DREDGE MATERIAL PLACEMENT PLAN",
"ISLAND PLACEMENT", & "'SANDBAG ISLAND' PLACEMENT
AREA" FOR DISPOSING DREDGED MATERIAL.
CONCEPTUAL DREDGED EFFLUENT CONTROL SCHEMATIC 2
NOTE:
1. GEOTEXTILE TUBE
SHALL BE INSTALLED
PER MANUFACTURE
RECOMMENDATIONS.
EXISTING MAJOR CONTOUR
LEGEND
EXISTING MINOR CONTOUR
CONSTRUCTION LIMITS
PROPOSED GEOTEXTILE TUBE
TEMPORARY DIKE
TURBIDITY CURTAIN
POROUS BAFFLE
EXISTING SUBAQUATIC
VEGETATION (SAV)
SSFSSF
Feet 0 150 300
SCALE: 1"=150'
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
SU
BM
IT
TE
D B
Y:
C H
EC
KE
D B
Y:
D R
AW
N
B Y:
D
ES
IG
N
ED
B
Y:
C O
N
TR
AC
T
N O
SO
LI
C
IT
AT
IO
N N
O
IS
SU
E D
AT
E:
SI
ZE
M
AR
K
D
ES
C R
IP
TI
O N
D
AT
E
SHEET ID
C
BS
-0 4-
C N
2_
TU
R
BI
D
IT
Y_
D
ET
AI
L
J.
C
AR
TE
R
T.
K
N
IG
H T
T.
K
N
IG
H T
T.
H
O R
TO
N
TU
R
BI
D
IT
Y
C U
R
TA
IN
/B
AR
R
IE
R
D
ET
AI
L
CN502
US Army Corps of Engineers
U .S
. A R
M Y
C O
R
PS
O F
EN
G
IN
EE
R S
W
IL
IM
IN
G
TO
N D
IS
TR
IC
T
D
AR
LI
N G
TO
N
A
VE
W
IL
M
IN
G
TO
N , N
O R
TH
C
AR
O
LI
N
A
TB
D
SE
PT
EM
BE
R
D R
AW
IN
G C
O D
E
FI
LE
N
AM
E:
AN
SI
D
W
2P M
B0
BA
C
K
SO
U N
D T
O L
O O
KO
U
T
BI
G H
T M
AI
N
TE
N
AN
C
E D
R
ED
G
IN
G C
AR
TE
R
ET
C O
U N
TY
, N
O R
TH
C
AR
O
LI
N
A
R
TA
GENERAL SHEET NOTES
1. DETAIL FOR TURBIDITY CURTAIN OR BARRIER COMES FROM THE
FLORDIA DEPARTMENT OF TRANSPORTATION (FDOT).
2. FROM FDOT STANDARD SPECIFICATION SECTION 104-6.4.7
FLOATING TURBIDITY BARRIERS AND STAKED TURBIDITY BARRIERS:
2.1. FURNISH, INSTALL, MAINTAIN, & REMOVE FLOATING TURBIDITY
BARRIERS IN ACCORDANCE WITH THE APPLICABLE PERMITS,
THE MANUFACTURER'S DIRECTIONS, & THE CONTRACT
DOCUMENTS. THE CONTRACTOR MAY NEED TO DEPLOY
TURBIDITY BARRIERS AROUND ISOLATED AREAS OF CONCERN
(SUCH AS SEAGRASS BEDS, CORAL COMMUNITIES) BOTH
WITHIN AS WELL AS OUTSIDE THE PROJECT LIMITS. THE
(CONTRACTING OFFICER, OR HIS/HER REPRESENTATIVE) WILL
IDENTIFY SUCH AREAS. PLACE THE BARRIERS PRIOR TO THE
COMMECEMENT OF ANY WORK THAT COULD IMPACT THE AREA
OF CONCERN. ENSURE THAT THE TYPE OF BARRIER USED AND
THE DEPLOYMENT AND MAINTENANCE OF THE BARRIER WILL
MINIMIZE DISPERSION OF TURBID WATERS FROM THE
PROJECT. THE (CONTRACTING OFFICER, OR HIS/HER
REPRESENTATIVE) MAY APPROVE ALTERNATE METHODS OR
MATERIALS.
2.2. INSTALL AND MAINTAIN TURBIDITY BARRIERS TO AVOID OR
MINIMIZE THE DEGRADATION OF THE WATER QUALITY OF THE
SURROUNDING WATERS AND MINIMIZE DAMAGE TO AREAS
WHERE THE FLOATING BARRIERS ARE INSTALLED.
3. CONTRACTOR IS TO USE TYPE II OR TYPE III TURBIDITY CURTAIN OR
BARRIER.
4. PAYMENT FOR TURBIDITY CURTAIN OR BARRIER SHALL BE
INCLUDED IN CLIN 0004: "BIRD ISLAND PLACEMENT - 'SANDBAG
ISLAND'" OF THE BID SCHEDULE. THIS SHALL INCLUDE ALL WORK,
LABOR, MAINTENANCE, AND ALL OTHER APPURTENANCES NEEDED
TO COMPLETE THE WORK.
SECTION 104 INCLUDED IN GENERAL SHEET NOTES
II & III
II & III
| Sheets and Views |
| GENERAL |
| G001 COVER SHEET |
| GI001 PROJECT OVERVIEW & SHEET LAYOUT |
| CIVIL |
| CN101 CHANNEL TO BACK SOUND |
| CN102 CHANNEL TO LOOKOUT BIGHT |
| CN103 NPS CHANNEL LIGHTHOUSE |
| CN104 CAPE LOOKOUT BEACH PLACEMENT EXTENTS |
| CN105 BIRD ISLAND PLACEMENT AREA |
| CN301 PROPOSED BIRD ISLAND PLACEMENT SECTION VIEW STA. -4+50 TO 3+00 |
| CN302 PROPOSED BIRD ISLAND PLACEMENT SECTION VIEW STA. 3+50 TO 4+00 |
| CN501 CONCEPTIONAL DESIGN AND DETAILS |
| CN502 TURBIDITY CURTAIN DETAIL |
| Sheet 1 |
| 2023-09-27T15:54:32-0400 | |
| MURPHY.TAMARA.C.1386322240 |
| 2023-09-27T15:54:52-0400 | |
| MURPHY.TAMARA.C.1386322240 |
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