Oregon Inlet Q1 2024 1/3/2024

EVENT 7 - Q1 2024 OREGON INLET
CHANNEL MAINTENANCE PROJECT
A
PROJECT AREA
BODIE
ISLAND
OREGON
INLET
ATLANTIC
PEA OCEAN
ISLAND
PAMLICO SOUND
0�00
GRAPHIC SCALE IN FT
RALEIGH DVLNP
CHARLOTTE &-,\N GPI
ACKSONVILLE-
N.r.s. CAPE FEAR
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
DARE COUNTY, NORTH CAROLINA
ECT LOCATION
CAPE HATTERAS
REHEAD CITY
LOOKOUT
ATLANTIC
OCEAN
91.10mriau00
1 COVER SHEET
2 PROJECT OVERVIEW
3 OREGON INLET & OCEAN BAR CHANNEL PLAN VIEW
q OREGON INLET TO HELLS GATE ALTERNATE CHANNEL PLAN VIEW
5 OREGON INLET TO HELLS GATE WEST AND OLD HOUSE CHANNEL PLAN VIEW
6 OREGON INLET & OCEAN BAR CHANNEL CROSS SECTIONS A -A', B-B' & C-C'
7 OREGON INLET TO HELLS GATE ALTERNATE CHANNEL CROSS SECTIONS D-D', E-E' & F-F.
8 OLD HOUSE CHANNEL RANGE 1 CROSS SECTIONS G-G' AND H-H'
GENERAL NOTES:
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.
LEGEND
0
A -
DREDGE AREA
INSHORE DISPOSAL AREA
PERMITTED CHANNEL CORRIDOR
SHIPWRECK LOCATION
SHEET
1
OF 8

1. PLACEMENT OF DREDGE SPOIL MATERIAL ON DISPOSAL
ISLANDS MN, L, AND C IS NOT INCLUDED IN THE
PROPOSED ACTION.
2. PROPOSED OREGON INLET AND OCEAN BAR CHANNEL
DREDGE AREAS ARE NOT FIXED AND RATHER FOLLOW DEEP
WATER AT TIME OF MAINTENANCE. LOCATION SHOWN IS
REPRESENTATIVE ONLY AND WILL CHANGE BASED ON
BATHYMETRY AT TIME OF MAINTENANCE.
3. ALTERNATE ROUTE PORTION OF OREGON INLET TO HELLS
GATE CHANNEL DREDGE AREA SHOWN ON SHEETS 3 AND 4
ARE FIXED PENDING USACE FONSI. ONCE THE FONSI IS
ISSUED, THE ALTERNATE ROUTE PORTION MAY BE
RE -ALIGNED TO FOLLOW BEST WATER.
4. PLACEMENT OF DREDGE SPOIL MATERIAL WILL BE
PERMITTED WITHIN PROPOSED INSHORE DISPOSAL AREAS
SHOWN ON SHEETS 3 AND 4AND IN THE NEARSHORE
DISPOSAL AREA OFFSHORE PEA ISLAND IN PROXIMITY TO
THE-17' MLLW CONTOUR.
MARC BASNIGHT BRIDGE
smirwjd[MFERMITTED CHANNEL
qW ORRIDOR
DISPOSAL
ISLAND "C"
DISPOSAL
ISLAND "L"
OLD HOUSE CHANNEL
RANGE 1 /
DISPOSAL - / / /
ISLAND"MN" o-o
/ REGON INLET TO
L. HELLS GATE CHANNEL
(WEST)
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
OREGON INLET TO
HELLS GATE CHANNEL
(ALTERNATE ROUTE)
PAMLICO
SOUND
mak-
PROPOSEDINSHORE
DISPOSAL AREA
INLET
A
ATLANTIC
OCEAN o1250 2500
GRAPHIC SCALE IN FT
OREGON INLET AND
OCEAN BAR CHANNEL
lZ
OF HERBERT C.
3RIDGE TO REMAIN
10
G
0
SHEET
2
OF 8

OREGON INLET TO
HELLS GATE CHANNEL
(ALTERNATE ROUTE)
PAMLICO
SOUND
T / MARC BASNIGHT
J. BRIDGE /
/
I /
1 /
PORTION OF HERBERT C.
BONNER BRIDGE TO REMAIN
ems•
ELIZABETH (
0
?JPEA ISLAND
PROPOSED v
INSHORE o�Q
DISPOSAL AREA O~�¢o
0 N
�S
NOT FOR CONSTRUCTION Q
FOR REGULATORY REVIEW ONLY
OREGON
INLET
RIG
5
NO DREDGE ZONE
B
.\ W.G.
B1
�I
C
1NE
5HPW
OREGON INLET AND
OCEAN BAR CHANNEL \
E3 ��OO
LADY
]GEL DAWN
1. LOCATION OF THE PROPOSED DREDGE AREA OF THE CHANNEL
REPRESENTS CONDITIONS ON THE DATES OF MOST RECENT
SURVEYS (SEE NOTE 4). IF CONDITIONS DICTATE A CHANGE IN
THE PROPOSED MAINTENANCE AREA DURING Q1-2024,
CHANGES WILL BE COORDINATED WITH USACE NAVIGATION
BRANCH AND REGULATORY AGENCIES.
2. PLACEMENT OF DREDGE SPOIL MATERIAL WILL BE PERMITTED
IN THE PROPOSED INSHORE DISPOSAL AREA WHERE DEEP
SCOUR HOLES AROUND THE BONNER BRIDGE EXIST AND IN
THE NEARSHORE DISPOSAL AREA OFFSHORE PEA ISLAND.
3. NO SIDECAST DREDGING SHALL OCCUR BETWEEN APRIL 1 AND
JULY 31 WITHOUT PRIOR COORDINATION WITH USACE AND NC
DCM.
4. BATHYMETRIC CONTOURS GENERATED FROM SURVEY DATA
COLLECTED BY THE USACE WILMINGTON DISTRICT
SURROUNDING OREGON INLET BRIDGE (DECEMBER 12, 2023)
AND ALONG OCEAN BAR CHANNEL (OCTOBER 26, 2023).
INSHORE DISPOSAL AREA SURVEY DATA COLLECTED BY McKIM
& CREED (DECEMBER 19, 2023). SURVEY DATAALONG THE
OREGON INLET TO HELLS GATE CHANNEL WEST &ALTERNATE
ROUTE COLLECTED BY APTIM (OCTOBER 12-13, 2023).
BOTTOM OF CUT/ CHANNEL COORDINATE TABLE
Point ID Northing Easting Elevation
A 759266.30 3034775.73 -16.0
B 759604.98 3034562.90 -16.0
C 758382.47 3032617.49 -16.0
D 757149.44 3030105.86 -16.0
E 755334.20 3028781.04 -16.0
F 755098.39 3029104.14 -16.0
G 756833.88 3030370.76 -16.0
H 758032.64 3032812.58 -16.0
/
/ l ATLANTIC
OCEAN
E
PERMITTED
CHANNEL
/ CORRIDOR
GRAPHIC SCALE IN FT
SHEET
3
OF 8

450
BOTTOM OF CUT/ CHANNEL COORDINATE TABLE
Point ID
Northing
Easting
Elevation
I
754588.78
3020086.07
-10.0
1
754080.12
3020977.19
-10.0
K
752790.13
3022559.39
-10.0
L
752490.86
3023239.57
-10.0
M
752212.77
3024055.38
-10.0
N
751335.76
3025431.72
-10.0
O
751549.12
3026678.42
-10.0
P
751861.54
3027165.69
-10.0
Q
752476.00
3027723.48
-10.0
R
752543.21
3027649.44
-10.0
5
751938.57
3027100.55
-10.0
T
751644.26
3026641.53
-10.0
U
751440.83
3025452.90
-10.0
V
752303.55
3024099.00
-10.0
W
752584.12
3023275.90
-10.0
X
752876.20
3022612.08
-10.0
Y
754162.86
3021033.96
-10.0
2
754675.63
3020135.64
-10.0
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
OREGON INLET TO HELLS
GATE CHANNEL (WEST)
PAMLICO
SOUND
J
PERMITTED CHANNEII
CORRIDOR
OREGON INLET TOum
HELLS GATE CHANNE
(ALTERNATE ROUTE)
MARC BASNIGHT
BRIDGE
Nuie:
u
1. ALTERNATE ROUTE PORTION OF OREGON
?
INLET TO HELLS GATE CHANNEL DREDGE
K
AREA IS FIXED PENDING USACE FONSI. ONCE
pj �j
THE FONSI IS ISSUED, THE ALTERNATE
Z Z
ROUTE PORTION MAY BE RE -ALIGNED TO
FOLLOW BEST WATER.
Z Q
2. PLACEMENT OF DREDGE SPOIL MATERIAL
W Z
WILL BE PERMITTED IN THE PROPOSED
Z G
INSHORE DISPOSAL AREA WHERE DEEP
F Q
SCOUR HOLES AROUND THE BONNER BRIDGE
-
EXIST AND IN THE NEARSHORE DISPOSAL
F =
-
AREA OFFSHORE PEA ISLAND.
f
o
3. NO SIDECAST DREDGING SHALL OCCUR
K
o
BETWEEN APRIL I AND JULY 31 WITHOUT
6Z
o
PRIOR COORDINATION WITH USACE AND NC
LL
'
DCM.
FO
_
4. BATHYMETRIC CONTOURS GENERATED FROM
W
SURVEY DATA COLLECTED BY THE USACE
G
-
WILMINGTON DISTRICT SURROUNDING
tl
OREGON INLET BRIDGE (DECEMBER 12,
2023) AND ALONG OCEAN BAR CHANNEL
(OCTOBER 26, 2023). INSHORE DISPOSAL
e
AREA SURVEY DATA COLLECTED Mc KIM &
-'
CREED (DECEMBER 19, 2023). SURVEY DATA
?9W
ALONG THE OREGON INLET TO HELLS GATE
CHANNEL WEST &ALTERNATE ROUTE
COLLECTED BY APTIM (OCTOBER 12-13,
2023).
N�
F
R
_ a,
o
T-m 5 ry
11'r�
h
Oz
/
wx
\
0� z a
O�
w
� O
°
wx
PORTION OF
HERBERT C. BONNER BRIDGE
TO REMAIN
PROPOSEDINSHORE
.
DISPOSAL AREA oo
- SHEET
OF 8

NOTE:
J t7 m
1. NO DREDGING ANTICIPATED TO BE CONDUCTED IN Q1-2024 ° DISPOSA —
ALONG THE OREGON INLET TO HELLS GATE CHANNEL(WEST) ° ISLAND 1" °'�ems° 1
SHOWN ON THIS SHEET. 0M sO4
2. NO SIDECAST DREDGING ACTIVITES SHALL OCCUR FROM
APRIL 1 TO JULY 31 WITHOUT THE NOTIFICATION AND
APPROVAL OF THE NC DCM AND THE USACE WILMINGTON Z Q
DISTRICT REGULATORY DIVISION.or u
.y W Z
3. OLD HOUSE CHANNEL RANGE 1 DREDGE AREA IS FIXED FOR . Z
EVENT 7 < n O_ K a
4. PLACEMENT OF DREDGE SPOIL MATERIAL WILL BE PERMITTED
FQ
IN THE PROPOSED INSHORE DISPOSAL AREA WHERE DEEP ' VSCOW -
THE NEX
HOLES AROUND THE BONNER BRIDGE EXIST AND IN �,r8- -
THE NFARSHORE DISPOSAL AREA OFFSHORE PEA ISL4ND. Z1 , ! K o
5. BATHYMETRIC CONTOURS GENERATED FROM SURVEY DATA / ~�_ �� __ LL Z o _ COLLECTED BYTHE USACE WILMINGTON DISTRICTALONG - -
OLD HOUSE CHANNEL (OCTOBER 24, 2023). SURVEY DATA �.Y �..,, Z21 0 o
ALONG THE OREGON INLET TO HELLS GATE CHANNEL WEST & - ! F m o p
ALTERNATE ROUTE COLLECTED BY APTIM (OCTOBER 12-13, / z w
Q
2023). v�' /�'Y s H G op
92
ISLAND "MN' o� OLD HOUSE CHANNEL f j3nW
°�5°° PAMLICO �Z4 RANGE 1
° SOUND
� Z3
SIM=
OREGON INLET TO
HELLS GATE CHANNEL
(WEST)
PERMITTED
ONE
CORRIDOR
' �J
- V
_ °w
BOTTOM OF CUT/ CHAN NELCOORDINATE TABLE -
_O-L
u 0Jo
Point ID Northing Easting
Elevation ����
0Eo 1°
�Q 0
Z1 752705.36 3012655.48
-12.0
Z2 752653.02 3012743.06
-12.0ii
o
j o
0
Z3 750037.72 3011845.16
-12.0
Z4 750081.22 3011754.32
-12.0
SHEET
0 300 600
NOT FOR CONSTRUCTION
GRAPHIC SCALE IN IT
FOR REGULATORY REVIEW ONLY

o
z
ao
CROSS SECTION A -A'
uWi
= _
0
B-B' oc
0
iR
W=
= J
50
5
5
vv 8
W
W=
W
-10
10ou
f
-15
15
z
O
R op
c
<
-20--_-20
&�'w
w
-25
-25
■W
1000 2000
3000 4000 5000 6000 7000
7750
DISTANCE ALONG SECTION (FEET)
0
5 10 0 500 1000
x
VERTICAL
GRAPHIC SCALE IN R HORIZONTAL GRAPHIC SCALE IN R
CROSS
SECTION
B-B'
CROSS SECTION
C-C'
5
5
5
5
t
v3 E3 F
0
0
0
0
o
a
w
w
w
a m=
W
-5
-5
W -5
-5
2�
of a 1a
-10
-10
-10
-10
Z
O
Z
O
b
—
-15
-15
¢ -15
-15
JU
° o
! w
w
a azm
J
J
WQ
UQ
W
W
-20
-20
-20
-20
z m`�
z Z o o
'
_o W W
W.o o ,,,
i
-1000 -500
0
500 1000
-1000 -500 0
500 1000
0
eq(5
DISTANCE FROM CENTERLINE (FEET)
DISTANCE FROM CENTERLINE
(FEET)
{
0 5 15 0
0 u50 500
0515 10
0 u50 500
ddb
VERTICAL GRAPHIC SCALE IN IT
HORIZONTAL GRAPHIC SCALE IN
IT
VERTICAL GRAPHIC SCALE IN IT HORIZONTAL GRAPHIC SCALE IN
IT
JHEETNOT
FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
EXISTING GRADE
' OCTOBER 26, 2023
1
s
/V J
i
MAXIMUM
_ -16.0 'MLLW
AD EL.
i 1
MAXIMUM AD EL.
_ -16.0 'MLLW
1L
s
�1
s
EXISTING GRADE
OCiOBER 26, 2023
4
0'
MAXIMUM AD EL.
_ -16.0 'MLLW
1L
J1
EXISTING
OCTOBER
GRADE
26, 2023
\
4
0'

CROSS SECTION D-D' z
5 E-E' F-F' 5 w
2V
_2
2Q
w 0 o
0 W 2
J
W 50
5 5 Wcai 8
0.
O -10 -10 _
LL
> fo
-15 -15 ow
W V MLLW
o3
-500 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 9500 ■
DISTANCE ALONG SECTION (FEET)
of I o s o
VERTICAL GRAPHIC SCALE IN FT HORIZONTAL GRAPHIC SCALE IN FT
x
CROSS SECTION E-E' CROSS SECTION F-F'
5 5 5 5 a
w 0 0 w 0 0
W W :3 E3 Eo
a -s -5 -s -5 0
0 -10 -10 0 -10 -10
-15 -15 -15 -15
w w 00
�-
S a °aw
u�
-500 -250 0 250 500 -500 -250 0 250 500 `o z zo
w.0 z
DISTANCE FROM CENTERLINE (FEET) DISTANCE FROM CENTERLINE (FEET) awl o <o
o Off.
g ohs 10 o i o ohs {o o i�zs zso
( Iu
VERTICAL GRAPHIC SCALE IN IT HORIZONTAL GRAPHIC SCALE IN FT VERTICAL GRAPHIC SCALE IN FT HORIZONTAL GRAPHIC SCALE IN FT i
SHEET
NOT FOR CONSTRUCTION 7
FOR REGULATORY REVIEW ONLY OF 8
EXISTING GRADE
DECEMBER 12, 2023
1
1
s
�
MAXIMUM
AD EL.
EXISTING GRADE
12, 2023
1L
(DECEMBER
J1
100'
MAXIMUM AD EL.
_ -10.0' MLLW
EXISTING GRADE
DECEMBER 12, 2023
IL
J1
J
MAXIMUM AD EL.
_ -10.0' MLLW

o
a o
W
W
_Z
CROSS SECTION G-G'
z
d
H H
W
5
5
= J y
50
F Q 8
w
0
0
W =
-5
5
_ _
o
0 m
fo op
0
-10
-10
Q
p F-
Q
V e3
W
-15
15
■w
-500 0 1000 2000 3000 3500
DISTANCE ALONG SECTION (FEET)
0 5 10 0 500 1000
x
VERTICAL
GRAPHIC SCALE IN R HORIZONTAL GRAPHIC SCALE IN R
a
CROSS SECTION H-H'
5
5
ys
a
°
0
0
-5
-5
p
i
$
O
-10
-10
_ i
i
J
z m
Sz
ou a
-15
,
w
O .01
z
1
1
_o o
-500
-250 0 250 500
o
g
o o
{
DISTANCE FROM CENTERLINE (FEET)
!q5
{
0 5 15 10 0 2�50 500
ddb
VERTICAL
GMP�HIC SCALE IN IT HORIZONTAL GRAPHIC SCALE IN IT
SHEET
8
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
OF 8
EXISTING GRADE
OCTOBER 24, 2023
1L
J1
3
3
MAXIMUM AD EL.
_ -12.0' MLLW
EXISTING GRADE
OCTOBER 24, 2023
1L
J1
MAXIMUM AD EL.
_ -12.0 'MLLW