Hatteras Oct Event Combined 9/13/2023

HATTERAS INLET MAINTENANCE PROJECT
DARE COUNTY, NORTH CAROLINA
SHEET INDEX
1 COVER SHEET
2 PROJECT OVERVIEW
3 CONNECTOR CHANNEL PLAN VIEW
4 WESTERN CONNECTOR CHANNEL CROSS SECTIONS
5-6 EASTERN CONNECTOR CHANNEL CROSS SECTIONS
GENERAL NOTES:
1. COORDINATES ARE IN FEET BASED ON NORTH CAROLINA STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN
DATUM 1983, (NAD83)
2. ELEVATIONS ARE REFERENCED TO MLLW. PERMITTED DREDGE DEPTH IS RELATIVE TO THE MLW DATUM BEING
APPROXIMATELY 0.08' ABOVE MLLW PER NOAA PID EX0400.
3. DATE OF AERIAL PHOTOGRAPHY: CS-1, PV-1 AND PV-2, 2020 NAIP IMAGERY.
4. SURVEY DATA COLLECTED BY EJE DREDGING SERVICES. SEPTEMBER 07, 2023.
5. BATHYMETRIC CONTOURS REPRESENT THE CONDITIONS OF THE CHANNEL ON SEPTEMBER 07, 2023 AND SHOULD
NOT BE RELIED ON FOR NAVIGATION PURPOSES.
LEGEND
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0 7500 15000 CROSS SECTION LINE
GRAPHIC SCALE IN FT HAT-03-V-18 HATTERAS INLET BORINGS 2003 AND ID
0
NEARSHORE DISPOSAL AREA
SUBMERGED AQUATIC VEGETATION AND 100 FT. BUFFER-2023 CPE SAV SURVEY. - oN
EN
RALEIGHTA7 ` ua yM �ry
OVI N
ow- CAPE HATTERAS a d
CHARLOTTE �0��� PROJECT LOCATION SUBMERGED AQUATIC VEGETATION AND 100 FT. BUFFER-2019/2020 APNEP SAV SURVEY. a s
JACKSONVILLE• MOREHEAD CITY
CAPE LOOKOUT
- - - - - NO -DREDGE AREA (100-FOOT BUFFERON CABLE CROSSING)
N.T.S. CAPE FEAR
b
ASBUILT EXISTING CABLE ROUTE (CALDWELL CABLE VENTURES) Z
ATLANTIC EXISTING CABLE ROUTE (UTLITY ELECTRICAL CONSULTANTS, PC) a J
0
OCEAN Lua6
+0.52' MHW ASBUILT NEW CABLE ROUTE
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N H 0 2
o Z 0 rn
+0.41' NAVD88 f Z W
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+0.08 MLW J U
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+0.00' MLLW Lu o
TIDAL DATUM =
REFERENCE
DRAWING NO.
TIDAL DATUM REFERENCE BASED ON NOAA TIDE CS_ 1
STATION ID 8654467 EPOCH 1983-2001"
SHEET 1 OF 6

IMLICO SOUND
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IN 537000
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NEARSHORE DISPOSAL
LOCATION
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%REA HAT-03-V-10
0 HATTERAS
0 HAT-03-V-11
OHAT-03-V-12
3
TERAS
VLET
0 1000 2000
GRAPHIC SCALE IN FT
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DRAWING NO.
PV-1
SHEFT 2 OF 6

I /
PROPOSED WESTERN /
CONNECTOR CHANNEL
COD
J---------------
�h* C J
BOTTOM OF CUT/CHANNEL
COORDINATE TABLE r
�/
POINT ID EASTING NORTHING ELEVATION , y .rO
a 2960439.74 544826.92 -11.92 - - J - J - _
b 2962073.65 544409.89 -11.92 -J-J-J-p
-
c 2962898.23 543954.62 -11.92
d 2962682.23 S4384S.43 -11.92-
e 2961999.39 544222.43 -11.92
J J-J--J-J-
f 2960390.28 544633.13 -11.92-
9 2963328.70 543687.90 -11.92J-
h 2963834.89 543212.76 -11.92-
J J--J-J-i-
i 2964112.19 S42487.22 -11.92-
j 296447S.03 S41928.S3 -11.92
k 1 2964907.11 541557.90 -11.92-1-
2964776.89 541406.10 -11.92-
m 2964322.97 S4179S.47 -11.92J-
n 2963932.93 542396.04 -11.92
0 2963664.49 543098.40 -11.92
p 2963150.81 543580.50 -11.92
J J-J-J--J-
J J-J-J-=J-
J J-J-J--J
J
f
0 400 800
GRAPHIC SCALE IN FT
PERMITTED CONNECTOR
CHANNEL CORRIDOR
h
1
0
PROPOSED EASTERN
1. ELEVATIONS ARE REFERENCED TO MLLW.
PERMITTED DREDGE DEPTH IS RELATIVE TO
THE MLW DATUM BEING APPROXIMATELY
0.08' ABOVE MLLW PER NOAA PID EX0400.
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PV-21
OF 6 i

CROSS SECTION A -A'
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--------------------------------------- -------------------------------------------------
•——w---------
—----------- w----------------Y---------r ----------------------
MMMMMIMMMMMM
-----------------------------------------------------------------------
1 11 11 11 11 11 11 • 11 11 11 11 1 11 11 11 11 11 11 • 11 11 11 11 1 11 11 11 11 11
B
4
0
-4
-8
-12
-16
-20
-150
CROSS SECTION B-B'
-100 -50 Ct 50 100
DISTANCE ALONG SECTION (FEET)
DISTANCE ALONG PROFILE (FEET)
WESTERN CONNECTOR CHANNEL.
B' 4 4 C
0 0
W
W
-4 -4
J
J
-8 -8
Z
O
-12 > -12
_-11.92' MLLW W
-16 W -16
-20 -20
150 -150
1. ELEVATIONS ARE REFERENCED TO MLLW. PERMITTED DRE
DEPTH IS RELATIVE TO THE MLW DATUM BEING APPROXIMATELY
0.08'ABOVE MLLW PER NOAA PID EX0400
2. MAXIMUM AD EL. OF-11.92' MLLW SHOWN ON CROSS SECTIONS
IS EQUAL TO-12.00' MLW PER NOAA PID EX0400.
NO DREDGE AREA
CROSS SECTION C-C'
-100 -50 50 100
DGE DISTANCE ALONG SECTION (FEET)
A'
cs '
_U 1 _IM
sa
M
i=
Qb
VIM I
V
. 11
C'
4
0
-4
-8
-12
EL. = -1 1.92'MLLW
-16
-20
150
X�SXEET 4 OF fi

g
a
CROSS SECTION D-D' (13+00 TO 28+00)
a
I
4
G-G'
H-H'
D'
4
:r
d
O MHW EL. +0.52'
I
O
_
—f
MLW EL. +0.08'
F
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W
W
-
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U-
-4
o
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-8
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EPTEMBER 07, 2023
e
Z
EXISTING GRADE
tl d
--
-
-
-
-
--
-
-
-
-
--
-
-
-
-
-12
W
t
-12
y
C Qm q
W
MAXIMUM AD EL. =-11.92' MLLW
d
2.0 7
w
-16
�j
-16
f
oo
I
TARGET
AD
EL.
=-11.92'MLLW
-20
;�_
-20
0.3
13+00 14+00 15+00
16+00 17+00
18+00 19+00 20+00 21+00 22+00 23+00 24+00 25+00 26+00
27+00
28+00
DISTANCE ALONG SECTION (FEET)
EASTERN CONNECTOR CHANNEL.
o
€
CROSS SECTION G-G'
CROSS SECTION H-H'
4 G
D-D'
G' 4 4 H
D-D'
H' 4
HH
s
K
&
O MHW EL. +0.52_--
_ I _ ___
__ O MHW EL. +0.52'
O
0
6e
80
W
LU
MLW EL. +0.08'
j MLW EL. +0.08
g
d
�sn
LL
-4
-4 LL -4
_4
-$
EPTEMBER 07, 2023
-$ 2 _8
SEPTEMBER 07, 2023
-8
C7
1
EXISTING GRADE
EXISTING GRADE
OZ
-12
d
3 -12 -12
-12
o
W
TARGET AD EL. _-11.92' MLLW W
TARGET AD EL. _-11.92'
MLLW
n
LU -16 CHANNEL
M IM MA EL.=-1 .92'M L
_16 LU _16 CHANNEL
V W
-16
�u� z
WIDTH 200'
WIDTH 20C
MAXIMUM AD EL.=-11.92' MLLW
a a
M V 2
-20
-20 -20
-20
_ o
ZG
-150 -100
-50 50
100 150 -150 -100
-50 Ct 50 100
150
wZ.
oRs s�
g� Z
DISTANCE ALONG SECTION (FEET)
DISTANCE ALONG SECTION (FEET)
1. ELEVATIONS ARE REFERENCED TO MLLW. PERMITTED DREDGE
DMMNG NO.
DEPTH IS RELATIVE TO THE MLW DATUM BEING APPROXIMATELY
0.08' ABOVE MLLW PER NOAA PID EX0400
2. MAXIMUM AD EL. OF-11.92' MLLW SHOWN ON CROSS SECTIONS
��_�
IHM
IS EQUAL TO-12.00' MLW PER NOAA PID EX0400.
6 OF 6