151-01 Minor Mod 2023 New Hanover County

NTV:
NEW HANOVER COUNTY
ENGINEERING
230 Government Center Drive, Suite 160, Wilmington, NC 28403
P: [phone] 1 F: [phone] 1 NHCgov.com
Jim lannucci, PE, CFM, County Engineer
6 June 2023
Heather Coats
NC Division of Coastal Management
Wilmington Regional Office
127 Cardinal Drive Ext.
Wilmington, NC 28405
Email Transmittal: heather.coats(a�deq.nc.gov
Re: Mason Inlet Relocation Project
Minor Modification Request, Permit Number 15 1 -01
Expiration Date, 31 December 2025
FY2024 Maintenance Event
Ms. Coats,
New Hanover County (NHC), in concert with the Mason Inlet Preservation Group (MIPG), is
requesting a minor modification to Major Permit Number 151-01 expiration date 31 December
2025. NHC is requesting a minor modification allowing a Mason Inlet Relocation Project (MIRP)
maintenance event. The scope will include potential dredging needs within the authorized reaches
of the Atlantic Intracoastal Waterway (AIWW) crossing, the Mason Creek reach east through the
Banks Channel confluence and ending with Mason Inlet. The maintenance event will realign the
system's thalweg within the authorized template corridor. The MIRP's most recent relocation
maintenance event occurred in 2020.
The Project Reaches, Spring 2023 Bathymetrics and Aerial figures depict the MIRP's components,
most recent surveyed elevations and most recent aerial. The FY2024 maintenance event is
substantiated by authorization triggers: (1) migration of the northern bank approaching the
southern engineered corridor and (2) a minimum shoaled template volume of 300,000 cubic yards
(cy). Based on the attached bathymetrics, NHC and MIPG anticipate beneficial reuse of the
shoaled sand within the ' 10,000-foot linear placement area on Figure Eight Island. However, if
necessary, based on weather events or additional shoaling; the placement area on north
Wrightsville Beach may also be accessed. Neither beneficial reuse area will receive more than the
authorized average of 50 cy/linear foot placed. As previously managed since 2002, the eastern
most maintenance has been landward of the Colregs demarcation line. Currently, the Colregs line
is approximately along the 4+00 survey transect. Market forces have historically determined
dredge plant size and capability in terms of potential ocean -certified dredge plant usage and their
operational rates. A preconstruction meeting will be held prior to initiating the maintenance
relocation during the environmental dredging window of 15 November 2023 — 31 March 2024.

- .•- -• •"''AIW4V MONUT?RlNG AREA .- �'�
LINEAR FT4
qrNABON CREEK
ENGINEERED -(2 200 LINEAR FT)
CORR IOOR
-- LIMITS, " _ MASON CREEK& BANKS
CHANNEL CONFLUENCE -
- = r— y--'M�ONITORING AREA
L2LOO L1NEkR FT) .n
E 0
gtF+,'11TPR'10 ., F vav CT[I1�rT
E S SHWAI-
` 1.100 LINEAR FT) -
yyRIGHTSVILLE BEACL40NITO
H ___,,.' FI9URE'8'ISLAND
b10N1TORING AREA �� RINS AREA
{+I-1Z.500 LINEAR FY) I (+1- 10,506 LINEAR FT)
WR15HTS1ILLE aSACH BON NEAR FKrUSE PLACEN15NT�,
�FIGURE'R• ISLAND BENEFICIAL REUSE PLACEMENT
H- 10.000 LINEAR FEET)
SPRING 2023 /
t•_nrall,l
!
r
u3>i
_ TOFOF Al1THORIZEOT-LATE TOE OFAIT-EOTEM-TE
I
I
I

March 2023 Aerial (Davey Resources Group)
MIRP 2023/2024
Construction Planning & Advertisement as of 24Feb2023
Activity
Date Range
Plans and Specifications Preparation
4/10/23 - 6/2/23
Agency Coordination Meeting
6/20/23 - 6/20/23
Pre -Bid (Industry Day) Meeting
7/17/23 - 7/17/23
Project Solicitation
8/1/23 - 8/30/23
Bid Opening and Analysis
8/31/23 - 9/1/23
Re -Advertisement (If Needed)
9/12/23 - 10/11/23
Bid Opening and Analysis (If Needed)
10/12/23 - 10/13/23
Notice of Award
10/16/23 - 10/16/23
Notice to Proceed (NTP)
10/19/23
NHC anticipates an Agency Coordination Meeting on/or about 20June2O23. NHC appreciates the
guidance and support provided by the Division and the consideration of our permit's maintenance
implementation. The NCDCM minor modification fee of $100.00 will be mailed to the
Wilmington Regional Office at your attention. If questions arise or additional information is
needed, please feel free to contact me at [phone] or at lbedsoleknhcgov.com.
H. Layton Bedsole Jr., R.E.M.
/"/ _"r 0,a / -
NHC Shore Protection
Cc: (via email transmittal)
D. Newberry, SIR; dnewberry(a),shellisland.com
D. Kellam, MIPG; dkellamkbizec.rr.com
T. Owens, Town of Wrightsville Beach; towensktowb.com
T. Littlefield, GBA; trlittlefield(aggba-inc.com
J. Iannucci, NHC Engineer; jiannucci(ae,nhc ov.com

NEW HANOVER COUNTY, NC
MASON INLET MAINTENANCE PROJECT
WRIGHTSVILLE BEACH
VICINITY MAP X
ORALEIGH
NORTH CAROLINA
:PROJECT AREA
WILVINGT N VA ON INLET
ATLANTIC OCEAN
NOT TO SCALE
a
Z
m
y
2023/2024
ATLANTIC INTRACOASTAL WATERWAY (AIV"
DREDGE AREAS
BANKS CHANNEL
FIGURE W ISLAND
BENEFICIAL REUSE PLACEMENT AREA
ATLANTIC OCEAN
J U LY 59 2023
NOT FOR
CONSTRUCTION
THIS DOCUMENT IS RELEASED FOR
PERMIT PURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEER: T. LITTLEFIELD
LICENSE NO.: IN
N047234
DATE: 07/05/2023
°uNTY.�
Gf a
z �
L9i
SHEET INDEX
DESCRIPTION
SHEET NO.
COVER
1
PROJECT OVERVIEW & CONTROL
2
TYPICAL SECTIONS
3
MASON CREEK/INLET & AIWW LAYOUT
4
MASON CREEK/INLET & AIWW BATHYM.
5-7
FIGURE V ISLAND LAYOUT
8
FIGURE V ISLAND BATHYMETRY
9-10
MASON INLET & CREEK CROSS SECTS.
11-16
AIWW CROSS SECTIONS
17-18
FIGURE V ISLAND BEACH CROSS SECTS.
19-20
(L;BA�
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
INC REGISTERED ENGINEERING FIRM P-0743

T
SHEER AIWW DREDGE AREA
REQUIRED GRADE -14.5 FT NAVD88 (-12.0 FT MLW)
PLUS 2.0 FT ALLOWABLE OVERDEPTH
SHEET 5
ATLANTIC INTRACOAS AL WATERWAY (AIWW
m
`L
w
-1 WIDENER DREDGE AREA
REQUIRED GRADE -14.5 FT NAVD88 (-12.0 FT MLW)
z PLUS 1.0 FT ALLOWABLE OVERDEPTH
0
big.
-------------E----- -----
SHEET 67 MASON CREEK &INLET DREDGE AREA
a
G REQUIRED GRADE -9.0 FT NAVD88 (-6.5 FT MLW)
�l .- PLUS 2.0 FT ALLOWABLE OVERDEPTH
- •1
-- ' R., F
DREDGE VOLUMES
REACH GRADE (CY)
I OVERDEPTH (CY)
I TOTAL (CY)
AIWW (080+00.00-100+00.00, 2' OD) 10,200
14,200
24,400
WIDENER (55+31.57-58+68.87, VOID) 45,600
4,400
50,000
MASON INLET & CREEK (06+00.00-55+31.57, 2' OD) 357,300
92,800
450,100
BID TOTAL
524,500
1. COORDINATES SHOWN ARE IN U.S. FEET AND ARE REFERENCED TO U.S. STATE PLANE
NORTH CAROLINA ZONE 3200, NAD83.
2. ELEVATIONS REFERENCE NAVD88.
SHELL BASE 3.0
X: 2,370,256.56
Y: 179,169.55
Z: +97.73 \ -
B 1 BANKS CHANNEL
SATELITE
X: 2,370,116.45
Y: 178,719.05
Z: +15.48 i %< 1 I "itSHEET 9 - - - -
SHEET 7 z APPROXIMATE PIPELINE ROUTE
FIGURE W ISLAND
WR GHTSVIL E BEACH
COL ----- - LINE
-
- - - - - - - - - - - - - -
�m
BENEFICI JL REUSE PLACEME NT AREA
ATLANTIC OC AN
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATIONSHIP DATUMS AT
AND TIDAL DATUMS AT
NOAA BENCHMARK 8658163
MHW
14FT
NAVD88
t
NOT FOR
CONSTRUCTION
THIS DOCUMENT IS RELEASED FOR
PERMIT PURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
GLBAJT��
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
NEW HANOVER COUNTY, NC
AIW W &WIDENER DREDGE AREA
MASON CREEK& INLET DREDGE AREA
FIGURE'8' ISLAND BEACH FILL AREA
APPROXIMATE PIPELINE ROUTE
MASON INLET MAINTENANCE PROJECT
2023/2024
PROJECT OVERVIEW & CONTROL
BDD' D BDD' 1,2DD' 1,8DD'
COLREGS LINE
® PROJECT CONTROL
25FT
I
MLW +
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/05/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703.DWG
mimmmommillil
GRAPHIC SCALE
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 20F20
I REV: 0

0
-10
0
-10
0
-10
= SECTION C-C
SOUTH EXISTING GRADE \ NORTH
= 3 3 0.0 FT NAVD88
-_ -9 FT REQ'D GRADE (-6.5 FT MLWWol
-11 FT ALLOWABLE OD (-8.5 FT ML40 FT
=IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
C-C: TYPICAL CREEK SECTION
STATION 26+00.00 TO 55+31.75
SECTION B-B
�J,
SOUTH VARIE \ EXISTING GRADE / ARIES NORTH
\ / 0.0 Ff NAVD88
-9 FT REO'D GRADE (-6.5 FT MLW)
-11 FT ALLOWABLE OD (-8.5 FT MLW)
WIDTH RIES
I
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
B-B: TYPICAL CREEK TRANSITION SECTION
STATION 16+00.00 TO 26+00.00
SECTION A -A
SOUTH 1 5 \ CL EXISTING GRADE / _j, 5 N H
\
/ 0.0 FT NAVD88
-9 F-f RE 'D GRADE -6.5 FT MLW
-11 FT ALLOWABLE OD -8.5 FT ML
212 FT
424 FT
I
-400 -300 -200 -100 0 100 200 300 400
A -A: TYPICAL INLET SECTION
STATION 06+00.00 TO 16+00.00
0 10
-10 0
-10
0 0
-10 -10
0 0
-10 -10
SECTION F-F
i
�I
170 FT
N
WIDTH VARIES
BERM ELEV. +5.0 FT NAVD88 +7.5 FT MLW FILL TEMPLATE
25
TOLERANCE 0.5 FT
0.0 FT NAVD88
EXISTING GRADE
I
-100 0 100 200 300 400 500 600 700
F-F: TYPICAL BEACH SECTION
STATION F000+00.00 TO 090+00.00
SECTION E-E
WEST \\ EAST
\ / EXISTING GRADE
0.0 FT NAVD88
3 \ /
-14.5 FT REQ'D GRADE (-12 Fr MLW)
-16.5 FT ALLOWABLE OD (-14 Fr MLW)
45 FT
90 FF
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
E-E: TYPICAL AIWW SECTION
STATION 080+00.00 TO 100+00.00
SECTION D-D
SOUTH \
/ NORTH
3
EXISTING GRADE 0.0 FT NAVD88
I
-14.5 FT REQ'D GRADE (-12 FT MLW)
J
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
139 FT 154 Ff
2 Ff
I IIIIIII IIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
D-D: TYPICAL WIDENER SECTION
STATION 55+31.75 TO 58+68.87
GENERAL NOTES:
20 1. COORDINATES SHOWN ARE IN U.S. FEET AND ARE REFERENCED TO U.S. STATE PLANE NORTH CAROLINA ZONE 3200,
NAD83.
2. ALL ELEVATIONS ARE IN FEET NAVD88.
3. AERIAL IMAGERY WAS OBTAINED BY TERRALINA MAPPING CONSULTANTS, INC AND IS DATED APRIL 13, 2023.
10
SURVEY NOTES:
1. THE INFORMATION DEPICTED HERE REPRESENTS THE RESULTS OF SURVEYS MADE BETWEEN FEBRUARY 15 - APRIL
18, 2023 AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITION EXISTING AT THAT TIME.
0
2. SINGLE BEAM DATA WAS COLLECTED BY GBANC USING A CV100 & CV200 ECHOSOUNDER AT 200 KHz.
3. HORIZONTAL AND VERTICAL POSITIONING WAS OBTAINED USING RTK GPS REFERENCED TO SURVEY MONUMENT
SHELL BASE 3.0.
-10 4. SOUNDINGS SHOWN ARE IN TENTHS AND FEET AND ARE BELOW THE REFERENCE PLANE OF NAVD88 UNLESS
PRECEDED BY A PLUS (+) SIGN.
5. SOUNDINGS SHOWN ARE PART OF A LARGER DATA SET THAT WAS GATED FOR CLARITY.
6. ALL FIGURE 8 ISLAND BEACH PROFILE AZIMUTHS ARE 125.3° FROM NORTH.
CONSTRUCTION NOTES:
1. EXCAVATION OF THE REQUIRED DREDGE AREAS AND PLACEMENT ON THE BEACH SHALL BE ACCOMPLISHED BY
HYDRAULIC CUTTER SUCTION DREDGE. SHOULD DREDGING OPERATIONS ENCOUNTER ANY NON -BEACH COMPATIBLE
SAND, THE DREDGE SHALL MOVE LOCATION TO RESUME EXCAVATING SUITABLE MATERIALS.
10 2. ELEVATIONS ARE SHOWN IN FEET AND TENTHS AND ARE REFERENCED TO NAVD88. COORDINATES ARE REFERENCED
TO THE NORTH CAROLINA STATE PLANE SYSTEM NAD83.
3. THE WIDTH OF THE BEACH BERM SHOWN IS BASED UPON EXISTING CONDITIONS DURING FEBRUARY 15 - APRIL 18,
2023 SURVEYS. THE BERM WIDTH MAY BE ALTERED AT THE TIME OF CONSTRUCTION BASED ON THE RESULTS OF THE
BEFORE -DREDGE (BD) BEACH PROFILE SURVEYS TO BE PERFORMED BY THE COUNTY. A SMOOTH TRANSITION
0 SHOULD BE CREATED TO TIE THE BEACH FILL TEMPLATE INTO EXISTING DUNES.
4. CONTRACTOR SHALL BE REQUIRED TO PLACE SAND ALONG THE ENTIRE 10,500' LENGTH OF THE BEACH FILL
FOOTPRINT.
5. IN ACCORDANCE WITH THE DCM PERMIT, SAND PLACEMENT SHALL NOT EXCEED AN AVERAGE OF 50 CUBIC YARDS
-10 PER LINEAR FOOT. THE MAX ALLOWABLE PLACEMENT VOLUME ON FIGURE'S' ISLAND IS 500,000 CY AND THE COUNTY
RESERVES THE RIGHT TO MODIFY THE DREDGE AND/OR PLACEMENT TEMPLATE TO MEET PERMIT REQUIREMENTS.
6. A VERTICAL TOLERANCE OF 0.5 FEET ABOVE THE PRESCRIBED BEACH FILL TEMPLATE SHALL BE PERMITTED IN THE
FINISHED SURFACE.
-20 7. LONGITUDINAL DIKES SHALL BE UTILIZED TO RETAIN AND DIRECT THE FLOW OF MATERIAL ON THE BEACH TO
MINIMIZE TURBIDITY IN ADJACENT OCEAN WATERS.
8. THE PIPELINE ROUTE IS APPROXIMATE. THE CONTRACTOR SHALL PROVIDE A PROPOSED PIPELINE ROUTE FOR
APPROVAL PRIOR TO PIPELINE PLACEMENT. THE PIPELINE ROUTE SHALL BE PLACED TO AVOID IMPACTS TO AREAS OF
WETLAND AND DUNE VEGETATION. THE PIPELINE ROUTE/PLACEMENT WILL BE COORDINATED WITH NEW HANOVER
COUNTY, THE CORPS OF ENGINEERS, THE USFWS, THE NORTH CAROLINA WILDLIFE SOURCES COMMISSION, AND
NCDCM. AN ONSITE INSPECTION OF THE PROPOSED ROUTE WILL BE PERFORMED BY THE ENGINEER FOR APPROVAL
PRIOR TO PLACEMENT.
9. SAND RAMPS SHALL BE CONSTRUCTED OVER THE SHORE PIPELINE AT INTERVALS NOT TO EXCEED 500 FEET.
10. THE CHANNEL SIDE SLOPES TRANSITION FROM 1:5 (V:H) TO 1:3 (V:H) BETWEEN STATION 16+00 AND STATION 26+00.
10 11. PREDATOR -PROOF TRASH RECEPTACLES SHALL BE UTILIZED THROUGHOUT CONSTRUCTION ACTIVITIES TO MINIMIZE
THE POTENTIAL OF ATTRACTING PREDATORS OF ENDANGERED SPECIES.
12. DURING FINAL DRESSING UPON COMPLETION OF BEACH FILL OPERATIONS, ALL ESCARPMENTS WITHIN THE
BENEFICIAL REUSE PLACEMENT AREA SHALL BE LEVELED PRIOR TO DEMOBILIZATION OF EQUIPMENT.
0 13. BEFORE START OF WORK EACH MORNING, INDEPENDENT CONTRACTED AND EXPERIENCED PERSONNEL WILL
PROVIDE A VISUAL SURVEY IN THE AREA OF WORK FOR THAT DAY TO DETERMINE IF PIPING PLOVERS OR RED KNOTS
ARE PRESENT. IF PLOVERS OR RED KNOTS ARE PRESENT IN THE WORK AREA, CAREFUL MOVEMENT OF EQUIPMENT
IN THE EARLY MORNING HOURS SHOULD ALLOW THOSE INDIVIDUALS TO MOVE OUT OF THE AREA. CONSTRUCTION
OPERATIONS SHALL NOT BEGIN UNTIL INDIVIDUAL PLOVERS OR RED KNOTS HAVE EXITED THE WORK AREA FOR THE
DAY. IF PIPING PLOVERS OR RED KNOTS ARE OBSERVED, THE OBSERVER SHALL MAKE A NOTE ON THE FIELD DATA
-10 FORM FOR THAT DAY.
REV
REVISIONS
DATE
APP
LEGEND
NAV088
RELATIONSHIPBETWEENDATUMS
AND TIDAL DATUMS AT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
LIMITS OF DREDGING
FIGUREWISLAND BEACH FILL
REQUIRED GRADE DREDGE TEMPLATE
ALLOWABLE OVERDEPTH DREDGE TEMPLATE
MHW
14 FT
NAVD88
THIS DOCUMENT IS RELEASED FORPERMIT
USEDFPU RPOSTRUCTIES AND SNOTTO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
TYPICAL SECTIONS
- BEACH FILL TEMPLATE
BEACH FILL TOLERANCE
25FT
I
MLW +
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
INC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/05/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703.DWG
DATE:
01.12.23
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 30F20
REV: 0

100+00
099+00
o9s+00
097+00
ass+Oo
Q
} o9s+oo
094+00
L�L1 093+00
092+00
Q
091+00
090+00
O
U 089+00
� osa+oo
z
U 087+00
z oas+oo
Z
085+00
084+00
083+00
oat+oo
oel+oo
0e0+00
079+00
078+00
077+00
17fi+00
W5+00
074+00
073+00
072+00
071+00
070+00
AIWW BASELINE COORDINATES
STATION RANGE EASTING
NORTHING
000+00.00
0.00
2,362,911.80
177,188.70
192+00.00
0.00
2,374,217.17
192,707.35
HORIZONTAL
COORDINATES
ARE REFERENCED TO
NORTH CAROLINA STATE PLANE, NAD 83.
Z� FIGURE X ISLAND
o
Z
0 0 00 0 15
o 0
00 a
01
SO
l
1 04
4 ,
� pM�
/
13
MASON CREEK 02 MASON INLET 01
AIWW CHANNEL & WIDENER TOE COORDINATES
POINT
I STATION
RANGE
EASTING
NORTHING
10
55+31.57
-68.70
2,368,185.22
183,798.62
20
55+34.10
72.06
2,368,256.77
183,919.86
21
58+35.11
220.17
2,368,077.88
184,203.65
22
100+00.00
45.00
2,368,836.39
185,244.85
23
100+00.00
-45.00
2,368,763:64
185,297.83
24
070+00.00
-45.00
2,366,997.04
182,872.85
25
070+00.00
45.00
2,367,069.92
182,820.05
26
58+68.87
-209.15
2,367,824.32
183,855.59
HORIZONTAL COORDINATES ARE REFERENCED TO
NORTH CAROLINA STATE PLANE, NAD 83.
MASON CREEK & INLET BASELINE COORDINATES
STATION
RANGE
EASTING
NORTHING
-12+00.00
0.00
2,373,989.00
180,659.06
00+00.00
0.00
2,372,990.56
181,324.72
13+38.57
0.00
2,371,876.85
182,067.31
25+66.71
0.00
2,370,904.65
182,817.75
29+47.82
0.00
2,370,606.96
183,055.70
32+50.01
0.00
2,370,314.26
183,130.86
41+50.69
0.00
2,369,415.03
183,181.96
46+72.21
0.00
2,368,994.62
183,490.57
51+82.32
0.00
2,368,518.74
183,674.27
58+00.00
0.00
2,367,992.51
183,997.70
59+00.00
0.00
2,367,907.32
184,050.07
HORIZONTAL COORDINATES ARE REFERENCED TO
NORTH CAROLINA STATE PLANE, NAD 83.
MASON CREEK & INLET CHANNEL TOE COORDINATES
POINT
STATION
RANGE
EASTING
NORTHING
01
06+00.00
-212
2,372,373.74
181,481.20
02
16+00.00
-231
2,371,528.73
182,044.63
03
26+00.00
-40
2,370,853.68
182,807.29
04
29+47.82
-40
2,370,588.69
183,019.09
05
32+50.01
-40
2,370,308.09
183,091.15
06
41+50.69
-40
2,369,400.92
183,142.70
07
46+72.21
-40
2,368,975.25
183,455.17
08
51+82.32
-40
2,368,500.91
183,638.28
09
55+00.00
-56
2,368,219.00
183,793.28
10
55+31.57
-69
2,368,185.22
183,798.62
06+00.00
212
2,372,608.98
181,833.99
16+00.00
191
2,371,788.76
182,381.03
26+00.00
40
2,370,903.63
182,869.78
29+47.82
40
2,370,625.22
183,092.31
g12
32+50.01
40
2,370,320.43
183,170.58
41+50.69
40
2,369,429.14
183,221.22
46+72.21
40
2,369,114.00
183,525.96
51+82.32
40
2,368,536.56
183,710.27
55+00.00
1 55
2,368,277.04
183,887.71
20
1 55+34.10
1 72
2,368,256.77
183,919.86
HORIZONTAL COORDINATES ARE REFERENCED TO
NORTH CAROLINA STATE PLANE, NAD 83.
ATLANTIC OCEAN
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONOT
GLBAJT��
NEW HANOVER COUNTY, NC
- CHANNEL BASELINEALIGNMENTS
CHANNELTOES
COLREGS LINE
W AIW & WIDENER DREDGE AREA
MHW
4 FT
NAVD88
THIS DOCUMENT IS RELEASED FOR
TO BE
USED PERMIFOR CONST FUR ERUCTIONS AND IS NBIDDNG,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF NC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON CREEK/INLET & AIWW LAYOUT
300 D 3DD 600 9DD
MASON CREEK 81NLET DREDGE AREA
2.5
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MLW
(NOT TO SCALE)
EN GINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/05/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703.DWG
GRAPHIC SCALE
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 40F20
REV: 0

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REV
REVISIONS
DATE
APP NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
200 D 2DD 4D0 600
— CHANNELBASELINEALIGNMENTS
CHANNEL TOES
6 5-FOOT CONTOURS
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MASON CREEK 81NLET DREDGE AREA
MHW
1.4 FT
NAVD88
2 5
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(NOT TO SCALE)
THIS DOCUMENT IS RELEASED FOR
UPERMITSED STRAND IS NOT TO BE
FOR
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
MASON INLET MAINTENANCE PROJECT
ENGINEERS * SURVEYORS
2023/2024
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE MASON CREEK/INLET & AIWW BATHYMETRY
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone] DWG DATE: 07/05/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703.DWG
W W W.GBA-INC.COM
DRAWN: J. CRAIG CHECKED: J. MCCLURE ENGR: T. LITTLEFIELD
NC REGISTERED ENGINEERING FIRM P-0743 SCALE: AS SHOWN SHEET: 5OF 20 REV: 0
ENGINEER:
T. LITTLEFIELD
LICENSE NO.:
NC #047234
GRAPHIC SCALE
DATE:
.1.12.23
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REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONT
GLBAff
NEW HANOVER COUNTY, NC
CHANNEL BASELINEALIGNMENTS
CHANNELTOES
COLREGS LINE
5-FOOT CONTOURS
MASON CREEK & INLET DREDGE AREA
MHW
4 FT
NAVD88
t
THIS DOCUMENT IS RELEASED FOR
FUR OSES AND IS NOT TO BE
USED PERMIFOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON CREEK/INLET BATHYM ETRY
200 0 200' 400' 600
25 FT
I
'I
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
LICENSE NO.:
NC #047234
DWG DATE: 07/05/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703.DWG
DATE:
07/OS/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
GRAPHIC SCALE
MLW
(NOT TO SCALE)
NC REGISTERED ENGINEERING FIRM P-0743
SCALE: ASSHOWN
SHEET: 6OF20
REV: 0

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m �DUINNNDWAA WOW UI OJ :..A ANVUi 4J "O +O w'NV VW WUIrrr-' TOVIWNmN NNWNUIOV Ar'� NAA V.�O+OTO�-�-NA+OWVVO+COVN+OV+Or OJwVO+Ar-OO+WrV VINNrOOCUV VOJ O+O+VVNUTAWUIQJO+N(fl(JIO+(IIUTA?AA AW
.WW,. AAAAA AAANW�JWWWWWWWNWNNNNNNNNNNNNNNNNNw NN G1WNN�-N NNNWWAA?NN�Vrj��v- A- �� - WNNNrr ++++++++++++}++++++p0000•-NN NNNNNNNNN•-rrrr'r--
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Vp+p+WNO wOU1NNQ+Om`0 m V AA A A. N. " AA NNANNNr--WOOOD �DOOr�-IVWWAUIUI.p✓r VAOr-'NWAN VOD+OA VNVrO UIO+WN"-OOOO+D�OO+VVQ+(IIp+O+mO+�+N �+AAAAANA..
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m.�rWNNW rNNNNN N, NNNNNN N. N_
W NNNN NN N N+OIVNA(IIVVV(JI(.J.-OpiO�pVUPww VANO+w+DWfVAUI�Or NN wNViO+N UTAUINO+Q O+V V+0 i00+00rrN0.-IV'- 3
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W�.+x.+WWwWwAAie�i Ul�:..�iUIWON.-VUTA.P.PNNW(:JAANV NNr N✓•�rrr✓r-r-r..- nm mtl+Nmm�-�...,r.+AAa�tnx n..,..."�i�mTVVUI�JIN�AAAANAw[.lWWN41fJ+00+OVO+UTAw WNWOO�ON Vm O+Nm V0+m0+A AA AmVOr AUIVODVV VpJ OJ WAD +0 �p �000rrr-•-.. .^, m... 01+00
- _ ��VVmmVVVmmmVmmmm
00+00
-01 +00
-02+00
-03+00
-04+00
-05+00
-06+00
07+00
-08+00
-09+00
-10+00
-11+00
-12+00
ATLANTIC OCEAN
j� m" im MMM&
2
Opp
fib•
�
M1`
,�A6
REV
REVISIONS
DATE
APP NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIIPBDATUMNNAVD88
AND TIDAL DATUMS AT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTION
�
NEW HANOVER COUNTY, NC
— CHANNEL BASELINE ALIGNMENTS
CHANNEL TOES
COLREGS LINE
5 5-FOOT CONTOURS
MASON CREEK & INLET DREDGE AREA
MHW
1.4 FT
NAVD88
t
THIS DOCUMENT IS RELEASED FOR
PERMIT PURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON CREEK/INLET BATHYMETRY
200 D 2DD 4D0 800
25FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/0 2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703.DWG
GRAPHIC SCALE
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
I
SCALE: AS SHOWN
SHEET: 70F20
I REV: 0

(S
APPROXIMATE '
PIPELINE ROUTE
MASON INLET
71
W+aaYAs'_ s,ir
~s� }•3y ,la Ah Fiw7�� r:
+,,o : . ,
FIGURE S" ISLA )D
-------------
170 FT EDGE OF BERMT 170 FT 170 FT
N
1-T
TOE OF SLOPE TOE OF SLOPE
BEACH TAPER
F-005+00 - F000+00
REUSE PLACEMENT AREA
LL
ATLANTIC OCEAN
FIGURE V ISLAND BASELINE COORDINATES
STATION RANGE EASTING NORTHING
F-15+00.00 0.00 2,372,857.26 182,025.04
F100+00.00 0.00 2,379,502.30 191,410.85
HORIZONTAL COORDINATES ARE REFERENCED TO
NORTH CAROLINA STATE PLANE, NAD83.
BANKS CHANNEL
T t
"
+ � so
�
EDGE OF BERM_
-
170 FT
§
170, FTIF
04
TOE OF SLOPE
03
1,
BEACH TAPER
F095+00-F100+00
EDGE OF BERM COORDINATES
POINT
STATION
RANGE
EASTING
NORTHING
01
F-005+00
00.00
2,373,435.09
182,841.20
02
F000+00
170.00
2,373,11U.75
183,151.05
03
F095+00
170.00
2,379,352.13
190,904.55
04
F100+00
170.00
2,379,640.98
191,312.64
HORIZONTAL COORDINATES ARE REFERENCED TO
NORTH CAROLINA STATE PLANE, NAD83.
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
AND TIDAL DATUMS AT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGOL%NEW
�
HANOVER COUNTY, NC
9G11E'8'ISLANDBASELINE
LIMIT OF BENEFICIAL REUSE
EDGE OF BERM
APPROXIMATE PIPELINE ROUTE
BENEFICIAL REUSE FILL AREA
MHW
1.4 FT
NAVD88
THIS DOCUMENT IS RELEASED FORPURPOSES AND IS NOT TO BE
USEDIFOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES,
I
ENGINEERS * SURVEYORS
GAHAGAN 8 BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
FIGURE V ISLAND LAYOUT
4DD' D 4DD' 8D0' 1,2DD'
25FT
I
'I
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/OS/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703OWG
GRAPHIC SCALE
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 8OF20
I REV: 0

+
+9.0
+1.7
+1.6
+ 4
+1.9
.5
+32
+1.4
+1.5
+3,0
+lA
+9.3
+1.3
+7,7
+1.8
+8.4
+12
+6.3
+12
+12
+52
+12
+4.8
+2,4
+7,6
+3.8
+7.2
+8.9
+4.1
+3.4
+121
+3.4
+10.0
+3A
+ 1
+6.5
+7 6
+5 9
+8,0
+6.1
+13.5
+6,4
+8.4
+ 9.5
+9.8
+9.4
1 +8.3
+9.4
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+8.7
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+102
+6.9
+ 6
+5.4,
+9.3
+8,0
+7.0
+6.7
,
+4.8
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+8A
+7 1
+8.3
+4..7
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+11,2
72
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+ 8
7
5,0
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.5
' ' 6 �
+6.5
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+1,9
' ' t5.
+1'0
+s'6
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+4,3
+1 3
0.3 ll
+0 4
0.7
+4.4
+0 4
+1.4
1,
0.5
06
+1.1
+0.1
3.0
3.2
0 9
3A
1.2
1.7
0.7
2.9
2'1
0.9
1.4
3.2
- 3.5
2.8
2.0
3.1
3.22.5
3.1
3.7
44
3.9
4.5
.
52
39
42
4.8
664
62
6,6
58
6.7
8A
8.5•
6,9
7.1
6.6
8.6
9. 1
70
7.4
7.7
8 .3
5.6
8.1
82
5.1
4.7
8.18.8
8.4
4.6
48
5.0
8,�
7.8
74
10 6
1 1.4
2,10
5.3
6.
6.0
,8
12.8
6J
.7
A q
13,5
0
LO
LL
0
O
LL
0
0
O
O
LL
APPROXIMATE PIPELINE ROUTE
+� T r
'.,; ')��yy''" �■{n.I�,Y/■`y�T., ��TI f��(y+' may, �j
_ .! •� ad � l' '+ �- . _ w 1 1 V V s'lw�R y� .wAi� ..vx...'', ftil !k �NS�!� Y"'�, ��' �I. � r
EXISTING EQUIPMENT BEACH t
t
ACCESS AT VACANT LOT OWNED
1
t 0 +M1►.:, - 9 _'.., BY FIGURE'S' ISLAND HOA Mix`. _7
� 3
+5.4
+1,6 a +2.5
+1.9 - +0 $ EDGE OF BERM +0 3 Y +1.0 170 FT
*2 0,6 +0.5
7' 170 FT 0.7 0,1 0.1
+0.1.0 1,2 0.6
0.6 1.2
1.7
2J 2'S 3 B - 3.0
3.1 3.4 5,3 6,6
_7
4.3 6,5 5.9
3.'5 5.4 7 9 75
BEACH TAPER
F-005+00 - F000+00
24,0
24,0
24.3
24.4
24.6
25.0
25A
252
2514
25,7
258
26.0
26.3
26.6
26.6
26,8
27A
0
0
O
O
LL
0
0
0
O
lL
TOE OF SLOPE
OCEAN
r w
w
z
x
U
a
r� �.
}
4 e � v
+21
+0.8 EDGE OF BERM
+02
\/ 009
.1
29
ll 4.9
6.3 v
90 28
29.1
9.3 0 29.;
94 F 29.'
29.:
9;7 w 29.`.
0 0
0 0
+ w +
0 z O
M J O
O x LL
LL 0
I �
TOE OF SLOPE
NOTES:
REV
REVISIONS
DATE
APP
ATUMSAAVD88
1. SEENOTESSHEET3. RELATIONSHIP DATUMS
LEGEND AND TIDAL DATUMS AT
NOAA BENCHMARK 8658163
9G1RE'8'ISLANDBASELINE MHW
LIMIT OF BENEFICIAL REUSE
EDGE OF BERM 1.4 FT
APPROXIMATE PIPELINE ROUTE
NAVD88
s SFOOTCONTOURS
NOT FOR
CONSTRUCTION
THIS DOCUMENT IS RELEASED FORPURPOSES AND IS NOT TO BE
USEDIFOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
B
AJT��
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-ANORTH GREENMEADOWS DRIVE
NEW HANOVER COUNTY, NC
MASON INLET MAINTENANCE PROJECT
2023/2024
FIGURE V ISLAND BATHYMETRY
26FT
200' 0 2DD' 4D0' BDD' I
'I
MLW
GRAPHIC SCALE
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC 0047234
DWG DATE: 07/OS/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_230703.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: AS SHOWN
SHEET: 90F 20
I REV: 0

f:
BANKS CHANNEL
IT
8 ISLAND
. ' f
.ram..
-
rrr
77
116.4
+6.2
+5 3 - +5.3 +5.6 r' - +5.8
ApP +2.1 +2,2 170 FT +23 +3.+3
1
0.8 EDGE OF BERM EDGE OF BERM
+
+0.9 +1.6 ,0
+02 +0.5 2
0.1 +0
0.4 1,0 0.5 0.5
16 i,1 23 2.5 ,� 2.2 N
28 21 2.0 2.8 r! 2.6
v'97 G77 397 1.6 -
7.1
6.5
TOE OF SLOPE 7 9
7'9
6,9
TOE OF SLOPE
8.7
9A
7A
10,3
11.1
9.9
9.3 \ ,
l0A
8.1
8.6
11.9
1
915
10.3
12.9
1 Z Z
1'9 //\\/\
11,7
12.5
11.0
.J ry
-
'EXISTING EQUIPMENT BEACH Ak '
ACCESS AT SURF COURT
APPROXIMATELY 1.5 MILES
+145
+109
+ 6
+91 ,
+7
170 FT +15.9 -
+5.3
+7,3
+2.8
+1.5
+5.1
+3.6
+0,3
02
7
+2 3
+07
1,3
+0,0
0.2
23
3.4
7
EACH TAPER 6
F095+00 - F100+00
2.1
2.6
2'6 _
3.3
4.1_
31
x
28.5 292 28.5 1 .1 28.£
27.9 29.3 30,1
59.0 28.1 29,2 29.4 28.6 30S 29,(
19.0 28.1 29,3 29.4 28.6 30.7 29..
59.1 a 26,4 29.5 29.3 28,8 30.6 0
19.3 -I 28,6 29,5 29.3 0 0 0
'CD = 0 00 00 + 0 +0
0 z o+ ++ 0 0 0 0
+ m 0 C)In (o I� o
o = 0 LL C) UL tL
LL m
d& ATLANTIC OCEAN d&
NOTES:
REV
REVISIONS
DATE
APP
1. SEENOTESSHEET3. RELATINDTIDABD TUMNNAVD88
LEGEND AND TIDAL DATUMS AT
NOAA BENCHMARK 8658163
1IGURE'8'ISLANDBASELINE MHW
LIMIT OF BENEFICIAL REUSE
EDGE OF BERM 1.4 FT
APPROXIMATE PIPELINE ROUTE
NAVD88
s SFOOTCONTOURS
26FT
200' 0 200' 400' 600' I
'I
MLW
GRAPHIC SCALE NOT TO SCALE)
NOT FOR
CONSTRUCTION
GLB
THIS DOCUMENT IS RELEASED FORPURPOSES AND IS NOT TO BE AJT��
USEDIFOR CONSTRUCTION, BIDDING, ENGINEERS * SURVEYORS
RECORDATION, CONVEYANCE, OR
SALES. GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
ENGINEER: T. LITTLEFIELD WILMINGTON, NC 28405-3933
LICENSE NO.: NC #047234 TEL: [phone] FAX: [phone]
W W W.GBA-INC.COM
DATE: 07/OS/2023
NC REGISTERED ENGINEERING FIRM P-0743
NEW HANOVER COUNTY, NC
MASON INLET MAINTENANCE PROJECT
2023/2024
FIGURE V ISLAND BATHYMETRY
DWG DATE: 07/05/2023 DWG NAME: MASON INLET MAINTENANCE PROJECT 23-24 PERMIT PLANS_23070 OWG
=#
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
I
SCALE: AS SHOWN
SHEET: 100E 20
I REV: 0

-06+00.00
10
SOUTH NORTH
0.0 FT NAVD88
0
I
-10
I
-20
-400 -300 -200 -100 0 100 200 300 400
,o—08+00.00
SOUTH rt NORTH
0.0 FT NAVD88
0
I
-10
I
-20
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
—10+00.00
10
SOUTH NORTH
0.0 FT NAVD88
0
I
-10
I
-20
-400 -300 -200 -100 0 100 200 300 400
,o—12+00.00
SOUTH ri NORTH
0.0 FT NAVD88
0
I
-10
I
-20
400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
02+00.00
SOUTH NORTH
0.0 FT NAVD88
I
I
-400 -300 -200 -100 0 100 200 300 400
00+00.00
SOUTH NORTH
0.0 FT NAVD88
I
I
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
—02+00.00
SOUTH NORTH
0.0 FT NAVD88
I
I
-400 -300 -200 -100 0 100 200 300 400
—04+00.00
SOUTH NORTH
0.0 FT NAVD88
I
-400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
08+00.00
SOUTH \
/ NORTH =
\
/ 0.0 FT NAVD88 -
1
J1 =
s
�
s —
-_ -9 FT R GRADE
\
_
-
-11 Fi ALLO L O
-
-
212 FT
421FT
-
-_
-400 -300 -300 -200 -100 0 100 200 300 400
07+00.00
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
-11 FT ALLOWABLE OD
212 FT _
42 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
_
06+00.00
=
SOUTH \
/ NORTH
\
/ =
0.0 NAVD88
= 1L
J1 =
= 5 \
5 =
-_ -9 FT REO'D GRADE
\
_
-
-11 FT ALLOWABLE OD
-
-
-II I I I I I I I I I I I I I I I I I I I I I I I
212 FT
42
I I I I I I I I I I I I I I I I I I I I 1IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
FT
-
-
-400 -300 -200 -100 0 100 200 300 400
04+00.00
SOUTH NORTH
0.0 FT NAVD88
I
I
400 -300 -200 -100 0 100 200 300 400
0
-10
0
-10
0
-10
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
-DREDGETEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
- CHANNELCENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD88
THIS DOCUMENT IS RELEASED FOR
PER MITPURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON INLET & CREEK CROSS SECTIONS
0 100, 200' 0 10, 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
.5 FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC#047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-MASON-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 11OF20
I REV: 0

0
-10
0
-10
0
-10
0
-10
_
12+00.00
-
SOUTH \
NORTH
FT NAVD88 -
S \
5
FT 'D GRADE
-
ALLOWABLE OD
=
-
-IIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIIIIIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIII-
212 FT
421
FT
=
-_
-400 -300 -200 -100 0 100 200 300 400
1 1 +00.00
SOUTH \ rt 0
\ 0.0 FT NAVD88
5 5
-9 FT RE D DE
WABLE ODOD
212 FT
42 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
_ 10+00.00 =
SOUTH
\ 0.0 FT NAVD88 =
= L Li =
- 5 5 =
REQ'D G A_
ABLE OD -
= V2 FT =
- 42 FT -
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
-400 -300 -200 -100 0 100 200 300 400
09+00.00
=
r
SOUTH \
/ NORTH =
\
/ 0.0 FT NAVD88 =
= 5
/ 5 =
- - FT E 'D GRADE
- -11 FT OW
-
=
-
-IIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIIIIIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIII-
212 FT
421FT
-_
400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
= 1 6+00.00
SOUTH \ / NO
0.0 FT NAVD88
1L L1
= 5 5
-MEO
-9 FT REQ'D GRADE
-11 FT ALLOWABLE OD
= 231 FT 191 FT
= 421
=11111111111111111111111111111111111111111111 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
15+00.00
SOUTH \ / RTH
0.0 FT NAVD88
5 5
-9 FT REO'D GRADE
-11 FT ALLOWABLE OD
224 FT 201 FT
425 FT
=11111111111111111111111111111111111111111111 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
= 14+00.00
SOUTH \ / NORTH
\ 0.0 FT NAVD88
= 5 \ 5
- -9 FT REQ'D GRADE
_ -11 FT ALLOWABLE OD
217 FT 208 FT
425 FT
-400 -300 -200 -100 0 100 200 300 400
13+00.00
SOUTH \ \ / / RTH
\ 0.0 FT NAVD88
= J,
5 5
-9 REQ'D GRADE \
-11 FT ALLOWABLE OD
212 FT
- 421FT
=1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
-400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
_ 20+00.00 =
SOUTH \ / NORTH
0.0 FT NAVD88 -
L J, _
= SK'D SK'D =
-9 FT REQ'D GRADE _
-11 FT ALLOWABLE OD -
154 FT 133 FT
2117 _ _
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
-400 -300 -200 -100 0 100 200 300 400
19+00.00 =
SOUTH \ / NORTH
0.0 FT NAVD88 =
LX
SK'D / SKID =
-9 FT REQ'D GRADE _
-11 FT ALLOWABLE OD -_
173 FT 148 FT =
322 FT
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
-400 -300 -200 -100 0 100 200 300 400
_
18+00.00
=
SOUTH \
/ NORTH =
-
0.0 FT NAVD88 =
L
�J,
/ SK'D
-_ -9 FT REQ'D GRADE
J
=
-_
_- -11 FT ALLOWABLE OD
=
=11111111111111111111111111111111111111111111
192 FT
356 FT
164 FT
11111111111111111111111111111111111111111111=
=
-400 -300 -200 -100 0 100 200 300 400
17+00.00 =
SOUTH \ / NORTH
0.0 FT NAVD88 =
L� �J1 =
SK'D \ / SK'D =
-9 FT REO'D GRADE _
-11 FT ALLOWABLE
212 FT 179 FT =
391 FT
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
400 -300 -200 -100 0 100 200 300 400
0
-10
0
-10
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
-DREDGETEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
- CHANNELCENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD88
THIS DOCUMENT IS RELEASED FOR
PER MITPURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON INLET & CREEK CROSS SECTIONS
0 100, 200' 0 10, 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
25FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC#047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-MASON-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 120E 20
1 REV: 0

0
-10
0
-10
0
-10
0
-10
_
24+00.00
=
SOUTH \
/ NORTH
_ \
_
- SK'D
SK'D -
-_ -9 FT REO'D GRADE
-_
-11 FT ALLOWABLE OD
-
- 78 FT
71 FT -
=
-IIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII
149 FT
IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIII-
=
-400 -300 -200 -100 0 100 200 300 400
23+00.00
=
SOUTH
\
rL
/ NORTH
= SK'D
/ SK'D =
- -9 FT REQ'D GRADE
J =
-11 FT ALLOWABLE OD
-
- 97 FT
87 FT -_
=
-IIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII
184 FT
IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIII-
=
-400 -300 -200 -100 0 100 200 300 400
-
22+00.00
-
SOUTH \
/ NORTH
\
/
0.0 FT NAVD88 =
= SK'D
SK'D =
-_ -9 FT REQ'D GRADE
-_
-11 FT ALLOWABLE OD
-
- 116 FT
102 FT -
-IIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII
218 FT
IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIII-
-400 -300 -200 -100 0 100 200 300 400
21 +00.00 =
_
SOUTH rL \ / NORTH
\ 0.0 FT NAVD88 _
SK'DD KID / S=
-9 FT REQ'D GRADE
-11 FT ALLOWABLE O-_
135 FT 117 FT
253 k -
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
28+00.00
\\
SOUTH
// NORTH
\
/ 0.0 FT NAVD88
J
3
3
FT REQ'D GRADE
J
-11 FT ALLOWABLE OD
40 FT
IIIIIIII�IIIIIIIII�IIIIIIIIIIIIIIIIIIIIIIIIIIIII
80 Fi
IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIII
-400 -300 -200 -100 0 100 200 300 400
27+00.00
SOUTH \\ NORTH
\ / 0.0 FT NAVD88
1J J1
= 3 \ � / 3
-9 FT REQ'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
=11111111111111111111111111111111111111111111 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
= 26+00.00
\\
SOUTH NORTH
\ / 0.0 FT NAVD88
= J
= 3
3 � / 3
-_ -9 FT REQ'D GRADE
J
- -11 FT ALLOWABLE OD
- 40 FT
= 80
FT
-400 -300 -200 -100 0 100 200 300 400
25+00.00
SOUTH \\ NORTH
\ 0.0 FT NAVD88
1J �J,
SKID
-9 FT REQ'D GRADE
-11 FT ALLOWABLE OD
59 FT 1,, FT
115 FT
=11111111111111111111111111111111111111111111 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
31 +00.00
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
3
/ 3
-9 FT REQ'D GRADE
J
-11 FT ALLOWABLE OD
40 FT
80
FT
-400 -300 -200 -100 0 100 200 300 400
30+00.00 =
SOUTH \\ NORTH
FT NAVD88 =
1 3 /J1 =
3 \ � / 3 -
-9 FT REQ'D GRADE J =
-11 FT ALLOWABLE OD
4 -
80 FT -
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
-400 -300 -200 -100 0 100 200 300 400
_ 29+47.82 =
SOUTH \\ NORTH
\ / 0.0 FTN =
= L� �3 _
3 =
_ -9 FT REQ'D GRADE J =
-11 FT ALLOWABLE OD -_
- 80 FT -
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
-400 -300 -200 -100 0 100 200 300 400
29+00.00
SOUTH \\ NORTH
\ / 0.0 FT NAVD88
J� /J1
3 \ / 3
-9 FT RE 'D GRADE J
-11 FT ALLOW OD
40 FT
80 FT
400 -300 -200 -100 0 100 200 300 400
0
-10
0
-10
0
-10
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
-DREDGE TEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
- CHANNELCENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD88
THIS DOCUMENT IS RELEASED FOR
PER MITPURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN 8 BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON INLET &CREEK CROSS SECTIONS
0 10D' 200' 0 10' 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
25FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON. NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC#047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-MASON-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 130E 20
1 REV: 0

0
-10
0
-10
0
-10
0
-10
34+00.00
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
3 \
-9 FT REO'D GRADE
-11 FT ALLOWABLE OD
40 FT
80 FT
I I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIII I II I I I I I II I II I I I I I III I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I II
-400 -300 -200 -100 0 100 200 300 400
33+00.00 =
\\
SOUTH
NORTH
FT NAVD88 =
= 1J
11=
- 3
3 -
-_ -9 FT REO'D GRADE
-_
— -11 FT ALLOWABLE OD
—
- 40 FT
-
-
-IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
80 FT -
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
-400 -300 -200 -100 0 100 200 300 400
_ 32+50.01 =
SOUTH \\ // NORTH
\ / 0.0 FT NAVD88 =
_ /3 _
= 3 \ 3
-_ -9 FT REO'D GRADE _
-11 FT ALLOWABLE OD —
- 40 FT -
- 80 FT -
=IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
-400 -300 -200 -100 0 100 200 300 400
32+00.00 =
\\
SOUTH
NORTH
\
/ 0.0 FT NAVD88 =
_ ,J
= 3
3 =
_ -9 FT REO'D GRADE
-_
— -11 FTALLOWABLE OD
—
- 40 FT
-
-
-IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
80 FT -
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
38+00.00
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
J 1
3 \ / 3
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
37+00.00
SOUTH \\ NORTH
\ / 0.0 FT NAVD88
3 3
-9 FT REO'D GRADE
-11 FT ALLOWABLE OD
40 FT
80 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
= 36+00.00
- \ /
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
3 J1
= 3 /
-9 FT REWD GRADE L J
-11 FT ALLOWABLE OD
- 40 FT
- 80 FT
-400 -300 -200 -100 0 100 200 300 400
35+00.00
SOUTH \\ // NORTH
\ / 0.0 FT NAVD88
3 3
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
-400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
41 +50.69
SOUTH \ L / NORTH
0.0 FT NAVD88
L3 J ,
3
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
41 +00.00 =
\\
SOUTH
// NORTH
/ 0.0 FT NAVD88 =
= 3
/ 3 =
- -9 FT RED GRADE
-11 FT ALLOWABLE OD
—
- 40 FT
-
-
-IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
80 FT -
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
-400 -300 -200 -100 0 100 200 300 400
_ 40+00.00 =
\ /
SOUTH \ / NORTH
- / o.o FT NAVD88 =
= J /J1 =
= 3 / 3 =
-_ -9 FT REO'D GRADED J =
-11 FT ALLOWABLE D —
- 40 FT -
- 80 FT -
=IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
-400 -300 -200 -100 0 100 200 300 400
39+00.00 =
\\
SOUTH NORTH
\ / 0.0 FT NAVD88 =
_ 13
_
= 3
- -9 FT REO'D GRADE
J =
-11 FT ALLOWABLE OD
—
- 40 FT
-
- 80
-IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
FT -
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
400 -300 -200 -100 0 100 200 300 400
0
-10
G
-10
0
-10
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
—DREDGETEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
— CHANNELCENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD88
THIS DOCUMENT IS RELEASED FOR
PER MITPURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON INLET &CREEK CROSS SECTIONS
0 10D' 200' 0 10' 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
26FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON. NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC#047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-MASON-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 140E 20
1 REV: 0

0
-10
0
-10
0
-10
0
-10
45+00.00
\ /
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
/
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
44+00.00 =
SOUTH \\ NORTH
\ / 0.0 FT NAVD88 =
,L\ / 3
- / 3 -
-9 FT REO'D GRADE J =
-11 FT ALLOWABLE OD
40 FT -
80 FT -
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
-400 -300 -200 -100 0 100 200 300 400
_ 43+00.00 =
SOUTH \ / NORTH
\ / 0.0 FT NAVD88 =
1L\ /_J1
= 3 \ I 3 =
-_ -9 FT REO'D GRADE L J =
-11 FT ALLOWABLE OD -_
- 40 FT -
- 80 FT -
=11111111111111111111111111111111111111111111 11111111111111111111111111111111111111111111=
-400 -300 -200 -100 0 100 200 300 400
42+00.00 =
\\
SOUTH
NORTH
/ 0.0 FT NAVD88 =
= 1L
/ , _
- 3
� 3 -
-_ -9 FT REO'D GRADE
-_
- -11 FT ALLOWABLE OD
-
- 40 FT
-
-
-IIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII
80 FT -
IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIIII�IIIIIIII-
400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
48+00.00
\ /
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
/
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
47+00.00
SOUTH \\ // NORTH
\ / O.O FT NAVD88
-9 FT REO'D GRADE
-11 FT ALLOWABLE OD
40 FT
80 FT
=11111111111111111111111111111111111111111111 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
= 46+72.21
SOUTH \\ // NORTH
_ \ / 0.0 FT NAVD88
L\
= 3 \
-_ -9 FT R 'D GRADE J
-11 FT ALLOWABLE OD
- 40 FT
- 80 FT
-400 -300 -200 -100 0 100 200 300 400
46+00.00
SOUTH \\ NORTH
\ / 0.0 FT NAVD88
_ \
3 \ / 3
L
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
=11111111111111111111111111111111111111111111 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
0 0
-10 -10
0 0
-10 -10
51 +82.32
\\
SOUTH
NORTH
FT NAVD88
3
/ 3
-9 FT REO'D GRADE
J
-11 FT ALLOWABLE OD
40 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
80 FT
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
51 +00.00
SOUTH \\ NORTH
\ / 0.0 FT NAVD88
3 \ /
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
40 FT
80 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
50+00.00
\ /
SOUTH \ / NORTH
\ / 0.0 FT NAVD88
3 3
-9 FT REO'D GRADE
-11 FT ALLOWABLE OD
40 FT
80 FT
-400 -300 -200 -100 0 100 200 300 400
49+00.00 =
\\
SOUTH // NORTH
\ / 0.0 FT NAVD88 =
- -9 FT REO'D GRADE
J =
-11 FT ALLOWABLE OD
-
- 40 FT
-
- 80
=11111111111111111111111111111111111111111111
FT -
11111111111111111111111111111111111111111111=
400 -300 -200 -100 0 100 200 300 400
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
-DREDGETEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
- CHANNELCENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD88
THIS DOCUMENT IS RELEASED FOR
PER MITPURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON INLET &CREEK CROSS SECTIONS
0 10D' 200' 0 10' 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
25FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON. NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC#047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-MASON-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 150F20
I REV: 0

0
-10
0
-10
0
-10
0
-10
55+00.00
SOUTH \ / ORTH
\ / 0.0 FT NAVD88
J 1
3
-9 FT REO'D GRADE
-11 FT ALLOWABLE OD
56 FT 55 FT
111 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
54+00.00
SOUTH \\ NORTH
\ / 0.0 FT NAVD88
J1
3
-9 FT REO'D GRADE J
-11 FT ALLOWABLE OD
51 FT 50 FT
01 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
53+00.00
SOUTH \ / NO
\ / 0.0 FT NAVD88
J1
3
-9 FT REO'D GRADE \ _
-11 FT ALLOWABLE OD
46 FT 46 FT
91 FT
-400 -300 -200 -100 0 100 200 300 400
52+00.00 =
SOUTH \\ NORTH
\ / 0.0 FT NAVD88 =
_ 1 _
3 3 -
-9 FT REO'D GRADE _
-11 FT ALLOWABLE OD _
41 FT -
82FT _
=IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII-
400 -300 -200 -100 0 100 200 300 400
0
-10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
58+00.00
SOUTH NORTH
)GRADE
0.0 FT NAVD88
3
-14.5 FT _
-15.5 FT ALLOWABLE OD
180 FT 203 FT
I IIIIII IIIIIIIII IIIIIIIII I I Fi I I I I I I I I I I I I I Ir 3IFI I I I I I I I I II IIIIA,, I I I I I I I I I I I I I I I I I I I I I I I I I II
-400 -300 -200 -100 0 100 200 300 400
= 57+00.00
- SOUTH NORTH
0.0 FT NAVD88
3 \ / 3
-14.5 FT REQ'D GRADE
-1 7. ALLOT
139 FT 154 FT
2 FT
-400 -300 -200 -100 0 100 200 300 400
56+00.00
SOUTH NORTH
0.0 FT NAVD88
_ � I
3 / 3
-14.5 FT REO'D GRADE
-15.5 FT ALLOWABLE OD
97 04 FT
20 FT
=IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-400 -300 -200 -100 0 100 200 300 400
0
-10
0
-10
0
-10
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABETWEENNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTIONGLBAJT��
NEW HANOVER COUNTY, NC
-DREDGETEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
- CHANNEL CENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD 88
THIS DOCUMENT IS RELEASED FOR
AND IS NOT TO BE
PERMIT FO CONSTRUCTION,
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN 8 BRYANT ASSOCIATES OF NC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
MASON INLET & CREEK CROSS SECTIONS
0 100, 200' 0 10, 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
25 FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-MASON-PERMIT.DWG
DATE:
07/0S/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. UIrrLEFIELD
SCALE: ASSHOWN
SHEET: 160E 20
REV: 0

0
-10
0
-10
0
-10
073+00
WEST \ rL / EAST
\ I /
NO REDGI G REQUI ED 0.0 FT NAVD88
1L\ /J,
-14.5 FT RE 'D GRADE \ /
-16.5 FT ALLOWABLE OD
45 FT
90 FT
-300 -200 -100 0 100 200 300
072+00
WEST \ rL / EAST
\ I /
NO REDGI G REQUI ED 0.0 FT NAVD88
I
-14.5 FT REQ'D GRADE \ /
-16.5 FT ALLOWABLE OD
45 FT
90 FT
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-300 -200 -100 0 100 200 300
= 071 +00
WEST \ rL / EAST
= NO REDGI G REQUI ED 0.0 FT 14AVD88
1L\ /J,
- -14.5 FT REQ'D GRADE /
- -16.5 FT ALLOWABLE OD
45 FT T
90 FT
-300 -200 -100 0 100 200 300
070+00
WEST \ CL / EAST
= NO REDGI G REQUI ED 0.0 FT NAVD88
= 1 3 \ / 3 1
-14.5 FT REQ'D GRADE /
-16.5 FT ALLOWABLE OD
= 45 FT T
90 FT
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-200 -100 0 100 200
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
077+00
WEST \ rL / EAST
\ I /
NO REDGI G REQUI ED 0.0 FT NAVD88
3 /3
I
-14.5 FT RE 'D GRADE \ /
-16.5 FT ALLOWABLE OD
45 FT
90 Ff
-300 -200 -100 0 100 200 300
076+00
WEST \ It / EAST
\ I /
NO REDGI G REQUI ED 0.0 FT NAVD88
3 \ / 3 1
I
7-14.5FrGRADE \ /
-16.5 FT ALLOWABLE OD
45 Ff
90 FT
....
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-300 -200 -100 0 100 200 300
075+00
WEST \ fL / EAST
\ I /
NO REDGI G REQUI ED o.o Fr NAVD88
L\
I
-14.5 FT RE 'D GRADE \ /
-16.5 FT ALLOWABLE OD
d-
45 FT T
90 FT
-300 -200 -100 0 100 200 300
= 074+00
WEST \ IL / EAST
NO REDGI G REQUI ED 0.0 FT NAVD88
= 3 \ / 3 1
_ I
-14.5 FT REQ'D GRADE \ /
-16.5 FT ALLOWABLE OD
45 FT
90 FT
H IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-200 -100 0 100 200
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
= 081 +00 =
WEST \ / EAST =
0.0 FT NAVD88 -
= 3 I =
- -14.5 FT REO'D GRADE
- -16.5 FT ALLOWABLE OD -
45 FT
90 FT -
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII�
-300 -200 -100 0 100 200 300
080+00 =
WEST \ / EAST
0.0 FT NAVD88 =
= 3 I =
-14.5 FT REQ'D GRADE \ / -
-16.5 FT ALLOWABLE OD -
= 45 FT
90 FT
a IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIH
-300 -200 -100 0 100 200 300
= 079+00 =
WEST \ rL / EAST =
= NO REDGI G REQUI ED o.o FT NAVD88 =
s \ /3' _
- -14.5 FT RE 'D GRADE \L
-
- -16.5 FITALLOWABLE OD -
45 FT I
90 FT -
a IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIH
-300 -200 -100 0 100 200 300
078+00
WEST \ TL / EAST
\ I /
NO REDG114G REQUI ED 0.0 FT NAVD88
I
-14.5 FT REQ'D GRADE \ /
-16.5 FT ALLOWABLE OD
45 FT
90 Fi
-200 -100 0 100 200
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
= 085+00 =
= WEST \ / EAST TO MASON CREEK ENTRANCE _
- 0.0 FT NAVD88 =
- 3 \ / 3 1 -
\
- -14.5 FT RE 'D GRADE
- -16.5 FT ALLOWABLE:::
LLOWABLE OD -
45 FT
9C Fi -
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIH
-300 -200 -100 0 100 200 300
= 084+00 =
WEST \ IL / EAST -
TO MASON CREEK ENTRANCE _
0.0 FT NAVD88 =
3 \ / 3 1 -
-14.5 FT REQ'D GRADE \ / -
-16.5 FT ALLOWABLE OD -
= 45 Ff
0
9FT
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIH
-300 -200 -100 0 100 200 300
= 083+00 =
= WEST \ rL / EAST -
TO MASON CREEK ENTRANCE _
- 0.0 IFT NAVD88 =
= 3 3 \ / 1 =
_ I _
- -14.5 FT RE 'D GRADE
Al O\ -
- -16.5 FT WABLE OD -
45 FT
90 FT
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIF
-300 -200 -100 0 100 200 300
= 082+00 =
WEST \ IL / EAST
0.0 FT NAVD88 =
/ 3 1 -
-1GRADE"/ -
-1-
45 FT -
90 F -
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIF
-200 -100 0 100 200
0
-10
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTION
(;BAJT��
NEW HANOVER COUNTY, NC
- -DREDGE TEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
- CHANNEL CENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD 88
THIS DOCUMENT IS RELEASED FOR
PERMIT PURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES,
ENGINEERS * SURVEYORS
GAHAGAN 8 BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
AIWW CROSS SECTIONS
0 100, 200' 0 10, 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
25 FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC#047234
DWG DATE: 07/05/2023
DWGNAME: MIRP230627-XSECTS-AIWW-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 170E 20
1 REV: 0

0
-10
0
-10
0
-10
0
-10
= 089+00
= WEST \ rL / EAST
0.0 FT NAVD88
1L � / 3
_ I
- -14.5 Ff RE 'D GRADE /
- -16.5 FT ALLOWABLE OD
45 FT T
90 Ff
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-300 -200 -100 0 100 200 300
088+00
WEST \ / EAST
0.0 FT NAVD88
'3� /
5 Ff REQ'D G _
-16.5 FT ALLOWABLE OD
45 FT 90 F
a IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-300 -200 -100 0 100 200 300
= 087+00
WEST \ / EAST
TO MASON CREEK ENTRANCE
0.0 F NAVD88
= 1L J,
= 3 \ 3
- -14.5 FT REQ'D GRADE \ /
- -16.5 FT ALLOWABLE OD
45 Ff
90 FT
-300 -200 -100 0 100 200 300
086+00
WEST \ / EAST
TO MASON CREEK ENTRANCE
0.0 FT NAVD88
3 \ 3
-14.5 Ff REQb GRADE \ /
-1fi.5 Ff ALLOWABLE OD
45 FT
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-200 -100 0 100 200
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
= 093+00
= WEST \ rL / EAST
- 0.0 FT NAVD88
= 3 \ / 3 '
- -14.5 Fr REQ'D GRADE _
- -16.5 FT ALLOWABLE OD
45 FT T
90 FT
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-300 -200 -100 0 100 200 300
092+00
WEST \ rL / EAST
0.0 FT NAVD88
= 3 \ / 3 1
_ I
A4.5 REQ'D GRADE \ _
-16.5 Ff ALLOWABLE OD
45 Ff
0 T
9FT
H IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-300 -200 -100 0 100 200 300
= 091 +00
WEST \ fL / EAST
0.0 FT NAVD88
- \ /
LX /J,
- -14.5 FT REO'D GRADE \ _
- -16.5 FT ALLOWABLE OD
45 FT
90 Ff
-300 -200 -100 0 100 200 300
= 090+00
WEST \ IL / EAST
- 0.0 FT NAVD88
= 3 \ / 3 1
-14.5 FT REQ'D GRADE \ J
-16.5 FT ALLOWABLE OD
= 45 FT
90 FT
H IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
-200 -100 0 100 200
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
= 097+00 =
= WEST \ / EAST =
0.0 FT NAVD88 -
1L / J1
- - -1FTEQ'D GRADE D-1LOWABO-
-
45 Fr 90 Ff -
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII�
-300 -200 -100 0 100 200 300
096+00 =
WEST \ / EAST
0.0 FT NAVD88 =
3
_ I _
-14.5 FT REQ'D GRADE -
-16.5 FTALLOWABLE OD -
= 45 FT T =
90 FT
a IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIH
-300 -200 -100 0 100 200 300
= 095+00 =
WEST \ / EAST =
= 0.0 FT NAVD88 =
/_j
- -14.5 Ff REQ'D GRADE -
- -16.5 FT ALLOWABLE OD -
45 FT 90 FT -
a IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIH
-300 -200 -100 0 100 200 300
094+00 =
WEST \ rL / EAST
0.0 FT NAVD88 =
_ I _
-14.5 FT REQ'D GRADE -
-16.5 FT ALLOWABLE OD -
= 45 FT T =
90 FT
a IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIF
-200 -100 0 100 200
0
-10
0 0
-10 -10
0 0
-10 -10
0 0
-10 -10
= 100+00 =
WEST \ rL / EAST
0.0 FT NAVD88 =
3 \ / 3 1 -
-14.5 FT REQ'D GRADE -
-16.5 Ff ALLOWABLE OD -
= 45 FT T -_
90 Ff
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIH
-300 -200 -100 0 100 200 300
= 099+00 =
= WEST \ / EAST
0.0 Ff NAVD88 =
L� /J1
I _
- -14.5 FT REQ'D GRADE -
- -16.5 FT ALLOWABLE OD -
45 FT
90 Ff
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIF
-300 -200 -100 0 100 200 300
= 098+00 =
WEST \ IL / EAST
0.0 FT NAVD8811 =
3 \ / 3 1 -
-14.5 FT REQ'D GRADE -
-16.5 FT ALLOWABLE OD -
45 Ff -_
90 Fi
�IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIF
-200 -100 0 100 200
0
-10
REV
REVISIONS
DATE
APP
NOTES:
1. SEENOTESSHEET3.
LEGEND
RELATINDTIDABD TUMNNAVD88
ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
NOT FOR
CONSTRUCTION
(;BAJT��
NEW HANOVER COUNTY, NC
- -DREDGE TEMPLATEREOUIREDGRADE
DREDGE TEMPLATE ALLOWED OVERDEPTH
- CHANNEL CENTERLINE
SPRING 2023 SURVEY
LIMIT OF DREDGING
MHW
1.4 FT
NAVD 88
THIS DOCUMENT IS RELEASED FOR
PERMIT PURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES,
ENGINEERS * SURVEYORS
GAHAGAN 8 BRYANT ASSOCIATES OF NC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
MASON INLET MAINTENANCE PROJECT
2023/2024
AIWW CROSS SECTIONS
0 100' 200' 0 iD' 20'
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE
25FT
MLW
(NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON. NC 28405-3933
TEL: [phone] FAX: [phone]
WWWMITI.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC#047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-AIWW-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: ASSHOWN
SHEET: 180E 20
1 REV: 0

F-005+00
END OF TAPER
(TAPER BEGINS AT STA 00+00)
I
0.0 FT NAVD88 -
-100 0 100 200 300 400 500 600 700
F-010+00
I
I
0.0 FT NAVD88
wl
tr
-100 0 100 200 300 400 500 600 700
F-015+00
I
I
0.0 FT NAVD88
wl
wt
20 20
10 10
0 0
-10 -10
20 20
10 10
0 0
-10 -10
20 20
10 10
0 0
-10 -10
F020+00
I
TOLERANCE 0.5 FT
- � RANGE 170 FT
BERM ELEV. +5.0 FT N.
\ � 1
0.0 FT NAVD88 -�
-100 0 100 200 300 400 500 600 7G0
F010+00
I
TOLERANCE 0.5 FT
RANGE 170 FT
BERM ELEV. +5.0 1 NAVD88
25
\� 1 0.0 FT NAVD88
-100 0 100 200 300 400 500 600 700
F000+00
I
TOLERANCE 0.5 FT
RANGE 170 FT
BERM ELEV. +5.0 FT NAVD88
25
\� 0.0 FT NAVD88
20 20
10 10
0 0
-10 -10
20 20
10 10
0 0
-10 -10
20 20
10 10
0 0
-10 -10
F050+00
I
TOLERANCE 0.5 FT
RANGE 170 FT
-
BERM ELEV. +5.0 FT N
\ 25
\ 1
0.0 FT NAVD88 -
20
10
0
-10
-100 0 100 200 300 400 500 600 700 I
F040+00
I
TOLERANCE 0.5 FT
RANGE 170 FT
BERM ELEV. +5.0 FT NAVD88
\-I 1 0.0 FT NAVD88
jl \
20
10
0
-10
-100 0 100 200 300 400 500 600 700 I
F030+00 -
I -
TOLERANCE 0.5 FT -
RANGE 1711 FT
BERM ELEV. +5.0 FT NAVD88 -_
- \ 25
1 0.0 FT NAVD88 -
20
10
0
-10
I-100 0 100 200 300 -0 500 600 700 -100 0 100 200 300 400 500 600 700 -100 0 100 200 300 400 500 600 700 I
NOTES:
REV
REVISIONS
DATE
APP
1. SEENOTESSHEET3. RELATINDTIDABD TUMNNAVD88
LEGEND ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163 BENEFICIAL REUSE FILL TEMPLATE MHW
BENEFICIAL REUSE FILL TOLERANCE
- SURVEY BASELINE 1.4 FT
SPRING 2023 SURVEY
NAVD 88
BENEFICIAL REUSE FILL AREA
NOT FOR
CONSTRUCTIONGLBAJT��
THIS DOCUMENT IS RELEASED FOR
PERMIT PURPOSES AND IS NOT TO BE
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
NEW HANOVER COUNTY, NC
MASON INLET MAINTENANCE PROJECT
2023/2024
FIGURE V ISLAND BEACH CROSS SECTIONS
25 FT
0 100, 200' 0 10, 20' 1
1
MLW 1
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE (NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/05/2023
DWG NAME:MIRP230627-XSECTS-FIGB-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J. CRAIG
CHECKED: J. MCCLURE
ENGR: T. LITTLEFIELD
SCALE: AS SHOWN
SHEET: 19OF 20
REV: 0

F080+00
TOLERANCE 0.5 Ff
RANGE 158 FT
BERM ELEV. +5.0 FT NAVD88
\ 25
\� 1 0.0 FT NAVD88
wt
-100 0 100 200 300 400 500 600 700
F070+00
I
TOLERANCE 0.5 I
RANGE 170 FT
BERM ELEV. +5.0 FT NAVD88
- \ 25
\� 1 0.0 FT NAVD88
-100 0 100 200 300 400 500 600 700
F060+00 -
I -
TOLERANCE 0.5 1 -
RANGE 170 FT
BERM ELEV. +5.0 FT NAVD88 -_
- \ 25
\� 1 0.0 FT NAVD88 -
I-100 0 100 200 300 -0 500 BOO 701
30
20
10
0
-10
-20
20 20
10 10
0 0
-10 -10
20 20
10 10
0 0
-10 -10
F100+00
END OF TAPER
(TAPER BEGINS AT STA 95+00)
iv�
0.0 FT NAVD88 J
-100 0 100 200 300 400 500 600 700
F090+00
I
TOLERANCE 0.5 FT
RANGE 170 FT
BERM ELEV. +5.0 FT NAVD88
- \ 25
1 0.0 FT NAVD88
-100 0 100 200 300 400 500 600 70C
30
20
10
0
-10
-20
30
20
10
0
-10
-20
NOTES:
REV
REVISIONS
DATE
APP
1. SEENOTESSHEET3. RELATINDTIDABD TUMNNAVD88
LEGEND ANDTINCHMATUMSAT
NOAA BENCHMARK 8658163
BENEFICIAL REUSE FILL TEMPLATE MHW
REUSE FILL TOLERANCE
- SURVEY BASELINE 1.4 FT
SPRING 2023 SURVEY
NAVD88
BENEFICIAL REUSE FILL AREA
NOT FOR
CONSTRUCTIONBENEFICIAL
THIS DOCUMENT IS RELEASED FOR
AND IS NOT TO BE
PERMIT FO CONSTRUCTION,
USED FOR CONSTRUCTION, BIDDING,
RECORDATION, CONVEYANCE, OR
SALES.
GLBAJT��
ENGINEERS * SURVEYORS
GAHAGAN & BRYANT ASSOCIATES OF INC, PLLC
295-A NORTH GREEN MEADOWS DRIVE
NEW HANOVER COUNTY, NC
MASON INLET MAINTENANCE PROJECT
2023/2024
FIGURE V ISLAND BEACH CROSS SECTIONS
25 FT
0 100, 200' 0 10, 20' 1
1
MLW 1
HORIZONTAL GRAPHIC SCALE VERTICAL GRAPHIC SCALE (NOT TO SCALE)
ENGINEER:
T. LITTLEFIELD
WILMINGTON, NC 28405-3933
TEL: [phone] FAX: [phone]
WWW.GBA-INC.COM
NC REGISTERED ENGINEERING FIRM P-0743
LICENSE NO.:
NC #047234
DWG DATE: 07/05/2023
DWG NAME: MIRP230627-XSECTS-FIG&-PERMIT.DWG
DATE:
07/05/2023
DRAWN: J.CRAIG
CHECKED: J.MCCLURE
ENGR: T. LITTLEFIELD
SCALE: AS SHOWN
SHEET: 20 OF 20
REV: 0

From: Coats, Heather
To: "Hughes, Emily B SAW"; Snider, Holley; Meilinger. Michael J; Harding, Kimberlee k; Dunn, Maria T.
Cc: Beachman, Kelsev; MacPherson. Tara; kathtyn matthewsCobfws.gov; "Twyla Cheatwood - NOAA Federal"; Rohde,
Fritz; Bodnar, Gregg; Greg Currey (Greaorv.E.Currey(cbusace.army.mil)
Subject: RE: [External] MIRP maintenance, minor mod request
Date: Thursday, June 22, 2023 1:21:00 PM
Attachments: MASON INLET MAINTENANCE PROJECT 2023-2024 PERMIT PLANS 230613.odf
FINAL minor mod request DCM 63une2023.pdf
Hello again everyone,
Here are the updated current plans for the Mason Inlet project. I also attached their minor mod
request again for your reference. Please let me know if you have any questions, concerns or
comments by July 10 (if possible). And sorry about the meeting invite being sent without any
coordination- I didn't realize they were planning on sending a single date without requesting any
feedback on availability. If you would like to attend and are not available that day/time, please feel
free to let them (or me) know. There will also be a pre -con meeting later once they select the
contractor- I'll make sure that one is better coordinated with everyone's schedules!
Thanks,
Heather
From: Coats, Heather
Sent: Tuesday, June 13, 2023 11:54 AM
To: Greg Currey ([e-mail]) <[e-mail]>; Hughes,
Emily B SAW<[e-mail]>; Snider, Holley <[e-mail]>;
Meilinger, Michael J <[e-mail]>; Harding, Kimberlee k
<[e-mail]>; Dunn, Maria T. <[e-mail]>
Cc: Beachman, Kelsey <kelsey.beach [e-mail]>; MacPherson, Tara
<[e-mail]>; [e-mail]; Twyla Cheatwood - NCAA Federal
<[e-mail]>; Rohde, Fritz <[e-mail]>; Bodnar, Gregg
<[e-mail]>
Subject: FW: [External] MIRP maintenance, minor mod request
Hello everyone,
Please see New Hanover County's attached request to conduct an inlet maintenance dredging/beach
fill project this winter at Mason Inlet. Layton is also proposing a "pre -con" meeting later this month,
but note this is still the pre -bid period and a contractor has not yet been selected. It seems the
meeting could serve to address any permit requirements that will need to be included in the
contract.
Here's a table of sand volumes in the template based on a spring survey:

West of Colregs
@ Grade Vols. (cy)
@ OD (CY)
Totals
Inlet & Creek @ -6.5'
402,900
97,200
500,100
AIWW Crossing @
-12'
10,200
14,200
24,400
Totals
413,100
111,400
1 524,500
*Beach placement volume will not exceed an average placement density of 50cy/If in accordance
with permit conditions.
He said they are still working on project plans and he said they will be provided at that meeting (if
not and hopefully before). One of us will send a follow-up email for the meeting, but in the
meantime, please let me know if you have any questions, concerns, comments, or if you see I've
missed anyone you think should also be notified at this time.
Thanks!
Heather
From: Bedsole, Layton <Ibedsole(@nhcgov.com>
Sent: Tuesday, June 6, 2023 10:12 AM
To: Coats, Heather <[e-mail]>
Cc: Dara Newberry (dnewberr)ICZDshellisland.com) <dnewberryt6Dshellisland.com>;
[e-mail]; towens <[e-mail]>; Tyler Littlefield ([e-mail])
<trlittlefield(@gba-inc.com>; lannucci, Jim <JlannuccilaDnhcgov.com>; Jauregui, Patty
<piauregui(@nhcgov.com>
Subject: [External] MIRP maintenance, minor mod request
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the
Report Message button located on your Outlook menu bar on the Home tab.
Good Morning,
Please accept our request for a minor modification to our current MIRP permit, allowing an
inlet relocation maintenance event.
We will mail the $100.00 fee to the Wilmington Regional Office at your attention.
Feel free to call!
L.
Layton Bedsole
Shore Protection Coordinator
New Hanover County - Engineering
[phone] p 1 [phone] f
IbedsoleQnhcgov.com
230 Government Center Drive, Suite 160
Wilmington, NC 28403

www.NHCgov.com