Non-Fed Channels Plans 1.5.24

Ql-2024 CENTRAL DARE COUNTY DREDGE
MATERIAL MAINTENANCE PROJECT,
WALTER SLOUGH AND THE CRACK
DARE COUNTY, NORTH CAROLINA
MANTEO ROANOKE
SOUND
Z ATLANTIC
OCEAN
BODIE
ISLAND
WANCHESE
PAMLICO
SOUND
PEA
ISLAND
L
0 12500 25000
GRAPHIC SCALE IN FT
P. r PROJECT LOCATION
RALEIGH
Ov
, ,Pw - CAPE HATTERAS
CHARLOTTE 9-(\A
• '0
JACKSONVILLE• OREHEAD CITY
CAPE LOOKOUT
N.T.S. CAPE FEAR
ATLANTIC
OCEAN
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
SHEET INDEX
1 COVER SHEET
2 PROJECT OVERVIEW
3-4 WALTER SLOUGH PLAN VIEWS
5 THE CRACK PLAN VIEW
6 DISPOSAL AREAS PLAN VIEW
7 WALTER SLOUGH CROSS SECTION A —A'
8 THE CRACK CROSS SECTION B—B'
9 WALTER SLOUGH CROSS SECTIONS C—C', D—D', E—E', & F—F'
10 WALTER SLOUGH AND THE CRACK CROSS SECTIONS G—G', H—H', & I —I'
1. COORDINATES ARE IN FEET BASED ON NORTH CAROLINA STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN
DATUM 1983, (NAD83).
2. ELEVATIONS ARE IN FEET AND ARE REFERENCED TO MLLW.
3. DATE OF AERIAL PHOTOGRAPHY: FEBRUARY 15, 2020.
AUTHORIZED NON—FEDERAL CHANNELS TO BE DREDGED
INSHORE DISPOSAL AREA
— — — — — — PERMITTED OPEN WATER DISPOSAL AREA CORRIDOR
SUBMERGED AQUATIC VEGETATION MAPPED SEPTEMBER 2023
WALTER SLOUGH AND THE CRACK DREDGE CORRIDOR
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a
SHEET
1
OF 10

NOTE:
1. THE LOCATION OF WALTER SLOUGH AND THE CRACK
CHANNELS WITHIN THE PROPOSED DREDGE CORRIDOR IS
NOT FIXED AND, RATHER, FOLLOWS DEEP WATER.
LOCATION SHOWN IS REPRESENTATIVE ONLY AND WILL
CHANGE BASED ON BATHYMETRY AT THE TIME OF
MAINTENANCE.
2. PLACEMENT OF DREDGE SPOIL MATERIAL WILL BE
PERMITTED WITHIN THE DISPOSAL AREAS SHOWN ON
X)GIll
SHEETS 2 AND 6.
410
3. THE MATERIAL PLACED WITHIN THE PROPOSED REGON
INLET WEST DISPOSAL AREAS WILL RESULT IN A
o-
POST -DISPOSAL ELEVATION NO HIGHER THAN -14' MLLW
N 760000
SUCH THAT NAVIGATION WILL NOT BE IMPEDED.
m m
w w
O O
O cn
0 0
0 0
WALTER SLOUGH
AND THE CRACK
DREDGE CORRIDOR
IN 755000
IN 750000
PERMITTED OPEN WATER
DISPOSAL AREA CORRIDOR
m
w
0
2
O
0
0
O
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
PROPOSED OREGON INLET
WEST DISPOSAL AREAS
PALMICO
SOUND
r f�Vr VJLV 11Y_lip 1 Iwrx"
DISPOSAL AREA
m Ln
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Lrl Z
O - M
O ¢ 0
W
Z W
Z Z a
C7 —
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W Z N
U
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0 1000 2000 v v
W =
GRAPHIC SCALE IN FT N 760000 HO H u
1 O 0 uj
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Z OUu
J L16 Q�zJ
Oz
FO NozU
H Q� W
0 2zz
V 0 z
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ATLANTIC ` W
� � W
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OCEAN CJ a W
N 755000
N 750000
J
N
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W
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N 745000
SHEET
2
OF 10

BOTTOM OF CUT/ CHANNEL COORDINATE TABLE
Point ID NORTHING EASTING ELEVATION
P1 759401.45 3016487.35 -14.0
P2 759547.05 3017443.86 -14.0
P3 760009.00 3018164.69 -14.0
P4 760842.06 3018688.54 -14.0
P5 761308.04 3019741.41 -14.0
P6 761266.75 3020469.81 -14.0
P7 760988.68 3020721.54 -14.0
P8 760988.68 3020839.38 -14.0
P9 761366.08 3021387.20 -14.0
P10 761569.26 3021838.61 -14.0
P19 761481.12 3021886.43 -14.0
P20 761278.61 3021436.49 -14.0
P21 760906.33 3020896.11 -14.0
P22 760828.58 3020866.47 -14.0
P23 760422.82 3021233.80 -14.0
P24 759774.00 3021582.34 -14.0
P27 759731.46 3021491.67 -14.0
P28 760364.75 3021151.48 -14.0
P29 761169.23 3020423.20 -14.0
P30 761206.84 3019759.83 -14.0
BOTTOM OF CUT/ CHANNEL COORDINATE TABLE
Point ID
NORTHING
EASTING
ELEVATION
P31
760762.98
3018756.93
-14.0
P32
759936.77
3018237.39
-14.0
P33
759450.79
3017475.62
-14.0
P34
759302.59
3016502.41
-14.0
I Il
W
a
00
CD
a oo -
CD + o�
Z P5 r 148' + Z U U
150' �/ P20 a O Om Z z
�-- --I - -200 ss / 200, 1 f~A Z0 z
(~7 w
E ,�' �� F a� z z
P30 P29
/ ~ M � C7
Lu
a J9�
N 761000 0 200 400 `�� A�� P7 P8 �'�� N 7 1
200' ox P21 'JAW
GRAPHIC SCALE IN FT mooW W
P4 .J P22
0
j W d W
m
W
a
F.
a
V 762000 0
0
y V O
m Ln
o 13CA
Z rn
M
0 N 7 0
o W °;
Z Z a
O�
Z Q P9
fh
W Z N
F -
x �s o o W
-zoo' H
P10 V LL
W
A ~H ci R u
P19 19 � O i z
P9 �� ` d Oniw
T P31 1
/ E - �
/ f
-200' T 1 � r � � y�
P23 '
P28
41 T 200'
zs7'
00
Irn �P � T \ y
N 760000
P3 Q. • o 7 Z
183' o
rn
aO WO i
-200
A P32 / d �a `'\\ U n' YN Y
U
ID
@N oZO
0 SAV MAPPED BY CPE
0IN SEPTEMBER 2023 u 0. 0 Pia rn
0
\ P27
013
�°101
�. \ y y
20(
+ / 200' / \ °'a 3 y U) of
A 000d
o 4-� P33 1 f \ 200' / \ J
P1 �
Lu
Lu
P34 10 i a
H
1 1 U Z
y
p w H U O
Lur,
i 0<1
WALTER SLOUGH ° _ 3:
N 759000 N Z a zLu
AND THE CRACK 0 N 7 0 o u a o m
DREDGE CORRIDOR w 1 Lu Z = Z
ce w
y o�a� ag
JZ�o
NOTE: m:W W
z as
1. THE LOCATION OF WALTER SLOUGH AND THE CRACK 3
CHANNELS WITHIN THE PROPOSED DREDGE CORRIDOR IS NOT N
o FIXED AND, RATHER, FOLLOWS DEEP WATER. LOCATION o
PALM I CO SHOWN IS REPRESENTATIVE ONLY AND WILL CHANGE BASED
to
ON BATHYMETRY AT THE TIME OF MAINTENANCE.
rn o o SOUND o 0 2. PLACEMENT OF DREDGE SPOIL MATERIAL WILL BE PERMITTED SHEET
w a o a 0 WITHIN THE DISPOSAL AREAS SHOWN ON SHEET 6.
00 NOT FOR CONSTRUCTION is o 0 3. BATHYMETRIC CONTOURS GENERATED FROM SURVEY DATA 3
ALONG WALTER SLOUGH AND THE CRACK COLLECTED BY OF 10
FOR REGULATORY REVIEW ONLY w w w u, APTIM (OCTOBER 12-13, 2023).

m
w
O
N
N 763000 0
O
O
Z
0 200 400
GRAPHIC SCALE IN FT
I N 762000
0
r P5 t
i
P30
1000
w ASTER S��vGH
m m m
w w w
� o 0
J N N
i N w
O O
O O
O O
US COAST:
GUARD
♦ STATION '
Al
81+65
P14 P15
GI
-200 P13 T 80+00
� �• P16
` s~ 54u" P12 %
OX
P11
X� j ►�- -1 P17+�
�' P18__, 36'
F200' i w , ' �•;
�s,� '
-200' o
't•
P10
A �
• x
o ._ P19
P9
148' �+ '
•n 5
X
P6 -5 ' - 150i P20
-� -\ -200 s 200' C
P29 y x �S r
B
P7 , �� P8
200''
P21
P22 l
E' 1
y � 1
� y
SAV MAPPED BY CPE
IN SEPTEMBER 2023
P23 1
\
P28
�
�
t
Y 1` • o
PALM ICO 'y
1pxo
N 760000 SOUND
o 183' o
14
\
\
y \
P24 \
\
\
P27
\ 15xp0
y
\
0
0
-200'
0
oN \
200' i
m 0 \
M
y �--� ,o
� O
NOT FOR CONSTRUCTION o 1
245' °
H
FOR REGULATORY REVIEW ONLY w 1
moo y
WALTER SLOUGH
AND THE CRACK
DREDGE CORRIDOR
OREGON INLET
FISHING CENTER
Ln
BOTTOM OF CUT/ CHANNEL COORDINATE TABLE m
O
N 763000 Point ID NORTHING EASTING ELEVATION
0
w P5 761308.04 3019741.41 -14.0 LU v °:
4 P6 761266.75 3020469.81 -14.0 Z Z a
O
n M
0 P7 760988.68 3020721.54 -14.0 W Z
P8 760988.68 3020839.38 -14.0 O W
P9 761366.08 3021387.20 -14.0
W V LL
P10 761569.26 3021838.61 -14.0 ~O c �
aow
P11 761964.25 3022438.93 -14.0 d 0 o N W
Z OVU
P12 761998.72 3022928.26 -14.0 a U. o Z
z
P13 762162.75 3023187.71 -14.0 H O < W
a w
P14 762301.98 3023188.29 -14.0 v c -J z
N 762000 1- w
P15 762301.57 3023288.28 -14.0
P16 762107.52 3023287.49 -14.0
E W W
P17 761900.74 3022960.41 -14.0
WCLW
P18 761866.33 3022472.04 -14.0
P19 761481.12 3021886.43 -14.0
P20 761278.61 3021436.49 -14.0
P21 760906.33 3020896.11 -14.0 En z o
Q n
P22 760828.58 3020866.47 -14.0 W o
ce
P23 760422.82 3021233.80 -14.0
P24 759774.00 3021582.34 -14.0
N 761000 P27 759731.46 3021491.67 -14.0
P28 760364.75 3021151.48 -14.0 Z
v
P29 761169.23 3020423.20 -14.0 9 v Z o
uQy �y
P30 761206.84 3019759.83 -14.0 " `"
0
m m N F
w v ' "Q
gz
'^ to
N
Ln
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wa 1 u- .� oQ
in Iff:
Z
d'
Cie
w
Q
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UZ
q J
0 U O
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'n < =
0 200 400 Ln
N 760000
z a O H O w
N
O
N
O
w z a J H
OUQO m>
Z
w
GRAPHIC SCALE IN FT w
Z (1:
W z
oZ°z ag
NOTE:
�W°
w as
3
1. THE LOCATION OF WALTER SLOUGH AND THE CRACK
"
CHANNELS WITHIN THE PROPOSED DREDGE CORRIDOR IS NOT
N
FIXED AND, RATHER, FOLLOWS DEEP WATER. LOCATION
SHOWN IS REPRESENTATIVE ONLY AND WILL CHANGE BASED
°y
ON BATHYMETRY AT THE TIME OF MAINTENANCE.
2. PLACEMENT OF DREDGE SPOIL MATERIAL WILL BE PERMITTED
SHEET
WITHIN THE DISPOSAL AREAS SHOWN ON SHEET 6.
3. BATHYMETRIC CONTOURS GENERATED FROM SURVEY DATA
4
ALONG WALTER SLOUGH AND THE CRACK COLLECTED BY
APTIM (OCTOBER 12-13, 2023).
OF 10

w \ ► 46 w rn BOTTOM OF CUT/ CHANNEL COORDINATE TABLE o
m
o \. c. ° sue► a� a o wo
o Q y � CD o Point ID NORTHING EASTING ELEVATION Z
o o
N 760000 0 0 1` ? 1 0 0 o N 760000 P24 759774.00 3021582.34 -14.0 W
W V
la 183 J 1 P25 756755.40 3022803.49 -14.0 Z Z a
s \y \ e P26 756717.89 3022710.79 -14.0 W Z N
J U
\� P27 P24 xZ \ SAV MAPPED BY CPE P27 759731.46 3021491.67 -14.0 p W
'S \ IN SEPTEMBER 2023 "' 1- a 6
\ LL
-200' o W v
\ N ~ O H R a, u 0
\ 200'--- o d O 22 N Z
W
1 y H � �Z-j
a0
o m z C7
Lu
ellH , 245 a � Z
v o z
Z
4� W
N 759000 WALTER SLOUGH \ N 759000
AND THE CRACK \\ y W W
DREDGE CORRIDOR o ' o
- \ � Ld W
y \
1 \
y \ z 10
\ \X \ a
> N
W
3°x0° � ` �
000,
N 758000 \ \\ r. R N 758000 z
\ \ 0
ZO
PALMICO \ ,. 3yx°
\ \ U n
r \ � N -. L > a U
SOUND \ W
�� , a N Z
\ vi 3� Ny
w Q ALL
\ a
\ �( °° -200' \ 0 200 400 W
\ y iw
\ ��GRAPHIC SCALE IN FT W U z
\ 200' I o 9
Wa'UV�
\ ` 00
1 \ \ o zaz~ Uw
N 757000 I t �' Ln N N 757000 o Z= Z u Z
PERMITTED OPEN �\ M � z
WATER DISPOSAL `�� �5x0° V w Z 9: g
AREA CORRIDOR / / O y NOTE: in
/ P25 Lu
P26 'r� 1. THE LOCATION OF WALTER SLOUGH AND THE CRACK " 3 0
R6x69 CHANNELS WITHIN THE PROPOSED DREDGE CORRIDOR IS NOT N
00 / 7 FIXED AND, RATHER, FOLLOWS DEEP WATER. LOCATION o
o / SHOWN IS REPRESENTATIVE ONLY AND WILL CHANGE BASED
N ti ON BATHYMETRY AT THE TIME OF MAINTENANCE.
M o / of 2. PLACEMENT OF DREDGE SPOIL MATERIAL WILL BE PERMITTED SHEET
0
w oo i v oo WITHIN THE DISPOSAL AREAS SHOWN ON SHEET 6.
� / N �� 3. BATHYMETRIC CONTOURS GENERATED FROM SURVEY DATA 5
NOT FOR CONSTRUCTION o o n G o ALONG WALTER SLOUGH AND THE CRACK COLLECTED BY
FOR REGULATORY REVIEW ONLY wi w' w w APTIM (OCTOBER 12-13, 2023). OF 10

DISPOSAL AREA A COORDINATE TABLE
DISPOSAL
AREA B COORDINATE
TABLE
Easting
3015967.44 _S
3016479.60
3017005.12
3017421.04
3017699.31
3018120.65
3018678.65
3018810.97
3018436.24
3018028.42
3017741.04
3017362.28
3016144.53
Point ID
Northing
Easting
Point ID
Northing
Al
749442.31
3014613.67
B1
749959.97
A2
749527.15
3014935.78
B2
750357.00
A3
749682.55
3015366.20
B3
750804.24
A4
749789.83
3015582.23
B4
751243.12
A5
749708.31
3015652.24
B5
751569.81
A6
749319.56
3014956.26
B6
751971.44
A7
749298.46
3014580.62
B7
752699.94
00
0
Ln
0
w
B8
752615.56
B9
752188.99
1310
751676.61
Bll
751268.63
B12
750911.92
B13
749890.38
DISPOSAL AREA C COORDINATE TABLE
Point ID Northing Easting
C1 754457.40 3019069.15
C2 754458.44 3019444.80
C3 755216.29 3020197.21
C4 755515.87 3020852.10
C5 755423.25 3020907.11
C6 755312.54 3020861.55
C7 754940.51 3020518.99
C8 754840.51 3020230.03
C9 754692.19 3020099.30
C10 754196.88 3019402.23
C11 754229.53 3019224.12
0
0
0
Ln
N
0
M
w
BODIE
ISLAND
B14 749863.72 3016038.61
THE CRACK
o,'' ca.� �-'' > CHANNEL
N c3 c5 MARC BASNIGHT BRIDGE
re)C6
N 755000 ,
u' C 7 /
!C1 / c2 Is/ � C8
,. l
~C9r /
C11 '1
� Z C10
/ol.�
B7
B8 �
/ , K \`
/ B5 � B10
B4
fBll V
/ l PERMITTED OPEN WATER
- B3 / B12 /
� DISPOSAL AREA CORRIDOR
B2��
A3 B13
A2 B14
Ali
A5 /
A' PROPOSED OREGON INLET
J
0
0
0
M
w
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
WEST DISPOSAL AREAS
0
O
O
O
N
O
M
w
O
O
O
Ln
N
O
M
w
NOTE:
Ln
1. PLACEMENT OF DREDGE SPOIL MATERIAL FROM WALTER
Z M
SLOUGH AND THE CRACK WILL BE PERMITTED IN THE
o
PROPOSED INSHORE DISPOSAL AREA AND IN THE PROPOSED
W
OREGON INLET WEST DISPOSAL AREAS.
Z Z a
2. PLACEMENT OF DREDGE SPOIL MATERIAL FROM WALTER
SLOUGH AND THE CRACK (SHEETS 3 THROUGH 5) WILL ALSO
fn
W
BE PERMITTED WITHIN THE NEARSHORE DISPOSAL AREA OFF
Z u
THE NORTHERN PORTION OF PEA ISLAND.
Z J
3. THE MATERIAL PLACED WITHIN THE PROPOSED OREGON INLET
H a
WEST DISPOSAL AREAS WILL RESULT IN A POST -DISPOSAL
ELEVATION NO HIGHER THAN -14' MLLW SUCH THAT
W
Lu
NAVIGATION WILL NOT BE IMPEDED.
4. BATHYMETRIC CONTOURS GENERATED FROM SURVEY DATA
C H c �
COLLECTED BY THE USACE WILMINGTON DISTRICT ALONG THE
19 o
d
OREGON INLET TO HELLS GATE ALTERNATE CHANNEL (AUGUST
Z V'00 u
J ce z
L0
1, 2023). SURVEY DATA COLLECTED BY MCKIM AND CREED
a NO6 O z
y
ALONG THE INSHORE DISPOSAL AREA (DECEMBER 19, 2023).
SURVEY DATA COLLECTED BY APTIM ALONG THE OREGON
z � ce
W
a � ? z
INLET TO HELLS GATE CHANNEL WEST (OCTOBER 12-13,
V o _j z
2023).
q w
0 0
0 o
0 0
0 Ln
rM M
O 0
M M
w w
e=
�W
�a4+
PORTION OF
HERBERT C. BONNER
BRIDGE TO REMAIN
PROPOSED
INSHORE
DISPOSAL AREA
Z
0 750 1500
GRAPHIC SCALE IN FT
w
Q
(w'� U Z_
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O -8 3
Q
J -10
w
-12
-14
-16
-2+50 0+00
Q
40+00 45+00
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
C-C'
r
CROSS SECTION A -A'
D-Di
I
I
i
I
5+00 10+00 15+00 20+00 25+00
DISTANCE ALONG SECTION (FEET)
0 4 8 0 50 100
VERTICAL GRAPHIC SCALE IN FT HORIZONTAL GRAPHIC SCALE IN FT
CROSS SECTION A -A'
E-E' F-F'
50+00 55+00 60+00 65+00
DISTANCE ALONG SECTION (FEET)
MAXIMUM AD
EL.=-14.0' MLLW
30+00 35+00
G-G'
70+00 75+00
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CROSS SECTION B-B'
W
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H-H'
4
M
M
W Z N
U
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0
W LL
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MAXIMUM AD
d Q 8 N W
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EXISTING BATHYMETRY
EL. =-14.0 MLLW
Q
Z 00 z J
0
J
-4
OCTOBER 12-13, 2023
Lu
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-16
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-5+00
0+00 5+00 10+00
15+00
20+00
25+00
z
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DISTANCE ALONG SECTION (FEET)
Q
W
n
o
0 2.5 5 0 125
250
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VERTICAL GRAPHIC SCALE IN FT HORIZONTAL GRAPHIC SCALE IN FT
0
0
z
CROSS SECTION B-B'
v
ID
N
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