20181344 Ver 2_CAMA Application_20191024

Oak Island 2019/2020 Renourishment Project
Additional Information for CAMA Major Permit Application
For the Town to maintain adequate cash flow, the renourishment of the entire oceanfront is being
completed in separate projects to ensure manageable budgets. The 2019/2020 Renourishment Project is
the first of three planned over the next three years (2019, 2020 and 2021).
As a result of recent hurricane activity, there is effectively no protective dune throughout most of the
oceanfront. Therefore, the first two planned renourishment projects will focus on building a dune to
withstand a 25-year return period storm event across the island. The design also includes a support pad
with a 1V:20H slope that will move MHW seaward on average 80 ft; see Table 1 and Figure 1. This is to
meet the Town's immediate need to provide protection to vulnerable infrastructure from increasingly
active hurricane seasons. The third project, planned for winter 2021, will focus on repairing what dune
volume is lost in the interim as well as provide additional storm protection in the form of a recreational
berm in front of the dune across the island.

Table 1- Summary of volume per cubic yard planned for dune and pad
Station
MHW
Advancement
Total
Unit Fill
Dune
Unit Fill
(above 7'
NAVD)
Pad Unit
Fill
(Below 7'
NAVD)
Pad
Percentage of
Total Fill
Dune
Percentage
of Total Fill
300+00
1 0.0
1 7.4
1 7.1
1 0.2
1 3.3%
1 96.7%
310+00
64.6
28.6
8.4
20.2
70.7%
29.3%
320+00
66.7
36.1
8.7
27.4
75.9%
24.1%
330+00
97.4
55.7
10.6
45.1
81.0%
19.0%
340+00
85.2
52.9
10.8
42.1
79.6%
20.4%
350+00
80.8
37.7
8.8
28.9
76.6%
23.4%
360+00
98.6
44.7
11.1
33.6
75.3%
24.7%
370+00
111.9
56.9
12.1
44.8
78.8%
21.2%
380+00
142.1
65.2
11.8
53.5
82.0%
18.0%
390+00
106.5
51.9
12.0
39.9
76.9%
23.1%
400+00
62.2
25.6
7.8
17.8
69.4%
30.6%
410+00
91.8
40.9
9.1
31.8
77.7%
22.3%
420+00
64.2
21.1
5.4
15.7
74.4%
25.6%
430+00
99.7
38.4
8.6
29.9
77.7%
22.3%
440+00
76.7
36.0
10.5
25.5
70.8%
29.2%
450+00
67.0
31.3
9.4
21.9
69.9%
30.1%
460+00
71.3
32.4
9.0
23.4
72.3%
27.7%
470+00
82.6
37.3
9.3
28.0
75.1%
24.9%
480+00
53.3
24.7
6.5
18.1
73.6%
26.4%
490+00
47.7
20.9
4.1
16.7
80.2 %
19.8
500+00
75.9
31.4
7.7
23.6
75.3%
24.7%
Average
82.3
38.5
9.1
29.4
75.7%
24.3%
Min
47.7
20.9
4.1
15.7
69.4%
18.0%
Max
142.1
65.2
12.1
53.5
82.0%
30.6%

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Figure 1— Representative profile depicting construction template of dune and pad
An analysis was also performed to compare the amount of 'recreational' beach, which was defined as the
width from elevation +7 ft NAVD88 to MHW (+1.8 ft NAVD88)), to determine how the construction of the
proposed renourishment template would affect the amount of recreational beach available. The widths
of recreational beach were determined for the 2016 profiles (pre -Hurricane Matthew), pre -construction
profiles (June 2019 survey), the proposed construction template profiles, and representative SBEACH 2-
yr return period storm equilibrated profiles of the construction template, see Table 2.
One important caveat to mention in this analysis is that the 2019 pre -construction profile represents the
beach in a state of erosion, as many profiles are currently without a dune. Therefore, these profiles will
have more recreational beach available since the beach face is on a shallower slope and the +7 ft NAVD88
contour has been pushed landward due to dune erosion. When comparing the width of recreational beach
available in the 2019 pre -construction profiles to the SBEACH equilibrated profiles the majority of the
profiles show a reduction in the recreational beach width.
A more representative comparison would be the recreational beach width that was present in 2016 when
a dune existed with the SBEACH equilibrated profiles. This 2016 survey was taken before Hurricane
Matthew at a time when a dune was present along a majority of the profiles. When comparing 2016

profiles to the SBEACH equilibration profiles the majority of profiles show maintaining or increasing the
recreational beach width.
Plots are provided to show how the construction template compares with the historical profiles. It is
important to note that the construction template is designed for a 25-year return period storm level of
protection, this did not exist across much of the island in 2014 (date of earliest survey). The construction
template in many cases will restore what was there in 2016 (before Matthew), however in many cases it
will add to what was there before Matthew. This is the intent of the design so that the Town will be in a
better position to recover from future storm events. Please also recall that the Town's plans involve the
construction of a dune repair/recreational berm project in the future that should greatly enhance the
recreational beach. Even if this project were to never materialize, we could expect that the same behavior
that has happened recently would occur, and the recreational beach would be fed by the dune during
larger storm events.
Table 2 — Recreational Beach Width Values
Recreational Beach Width from +7' NAVD88 to MHW
Station
Pre -Matthew 2016
Pre -Construction
June 2019
Construction
Template
SBEACH 2-yr Storm
Construction Equilibration
300+00
67
93
63
310+00
51
82
104
320+00
59
86
104
330+00
59
77
104
66
340+00
53
78
104
350+00
56
67
104
360+00
47
66
104
370+00
48
71
104
53
380+00
53
171
104
390+00
62
70
104
400+00
74
81
104
410+00
59
74
104
67
420+00
79
66
104
430+00
98
49
104
440+00
90
86
104
450+00
90
86
104
61
460+00
71
85
104
470+00
58
75
104
480+00
71
80
104
66
490+00
64
81
104
500+00
77
72
104
Average
66
81
102
63
Minimum
47
49
63
53

Recreational Beach Width from +7' NAVD88 to MHW
Pre -Construction
Construction
SBEACH 2-yr Storm
Station
Pre -Matthew 2016
June 2019
Template
Construction Equilibration
Maximum
98
171
104
67

ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S. REGAN
Secretary
BRAXTON C. DAVIS
Director October 21, 2019
Mr. Johnny Martin
Moffatt & Nichol
4700 Falls of the Neuse, Suite 300
Raleigh, NC 27609
Dear Mr. Martin:
The Division of Coastal Management hereby acknowledges receipt of your application, acting as agent for the
Town of Oak Island, for State approval of the Town of Oak Island's beach nourishment project, located from
101h Place West to SE 631d Street, in Oak Island, Brunswick County, and adjacent to the Atlantic Ocean. It was
received as conditionally complete on 10/9/19 and appears to be adequate for processing at this time. The
projected deadline for making a decision is 12/23/19. An additional 75-day review period is provided by law
when such time is necessary to complete the review. If you have not been notified of a final action by the
initial deadline stated above, you should consider the review period extended. Under those circumstances, this
letter will serve as your notice of an extended review. However, an additional letter will be provided on or
about the 75th day.
If this agency does not render a permit decision within 70 days from 10/9/19 you may request a meeting with
the Director of the Division of Coastal Management and permit staff to discuss the status of your project. Such
a meeting will be held within five working days from the receipt of your written request and shall include the
applicant and project designer/consultant.
NCGS 113A-119(b) requires that Notice of an application be posted at the location of the proposed
development. Enclosed you will find a "Notice of Permit Filing" postcard which must be posted at the
property of your proposed development. You should post copies of this notice at a conspicuous point along
the project area where it can be observed by the public. Failure to post this notice could result in an incomplete
application.
An onsite inspection will be made, and if additional information is required, you will be contacted by the
appropriate State or Federal agency. Please contact me if you have any questions and notify me in writing if
you wish to receive a copy of my field report and/or comments from reviewing agencies.
Sincerely,
H r Coat 6r�
Beach & Inlet Management Project Coordinator
cc: MHC Files, DCM David Kelly, Town of Oak Island
Ronnie Smith, COE Dawn York, Moffatt & Nichol
anwww�raory� /`�
North Carolina Department of Environmental Quality I Division of Coastal Management
Wilmington Office 1127 Cardinal Drive Extension I Wilmington. North Carolina 28405
910.796.7215

DIVISION OF COASTAL MANAGEMENT
FIELD INVESTIGATION REPORT
APPLICANT'S NAME: Town of Oak Island
LOCATION OF PROJECT SITE: The project site is located on Oak Island, from 10" Place West to
SE 63" Street, Brunswick County.
Approximate State Plane Coordinates — Approx. Lat: 33.914404' N (start)/ 33.907539' N (end)
Long: 78.171628' W (start) / 78.10263 P W (end)
3. INVESTIGATION TYPE: CAMA / D&F
4. INVESTIGATIVE PROCEDURE: Dates of Site Visit — 9/26/19, 10/11/19
Was Applicant Present — No
5. PROCESSING PROCEDURE: Application Received—10/9/19 (conditionally complete)
Office — Wilmington
6.
SITE DESCRIPTION:
(A)
Local Land Use Plan — Town of Oak Island
(B)
AEC(s) Involved: OH, PTA
(C)
Water Dependent: Yes
(D)
Intended Use: Public
(E)
Wastewater Treatment: Existing
— Municipal Sewer
Planned
- N/A
(F)
Type of Structures: Existing
— Primarily residential structures and accessways
Planned
— Dune construction and beach renourishment project
(G)
Estimated Annual Rate of Erosion: 0'-2'/year SBF: 2'/year
HABITAT DESCRIPTION:
[AREA)
DREDGED FILLED OTHER
(A) Vegetated Wetlands (coastal)
(B) Other (Below MHW)
304 acres
— 122 acres
(C) Other (Above MHW)
—71 acres
(II) Total Area Disturbed: —193 acres of beach fill
Primary Nursery Area: No
(1) Water Classification: SB Open: No
8. PROJECT SUMMARY: The applicant is proposing a beach nourishment project from 10'h Place
West to SE 63`d Street.
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North Carolina Department of Environmental Quality I Division of Coastal Management
Wilmington office 1127 Cardinal Drive Extension I Wilmington, North Carolina 28405
910.796.7215

Town of Oak Island Beach Nourishment
Page Two
9. PROJECT DESCRIPTION:
The Town of Oak Island is a south facing barrier island located in Brunswick County between
Lockwoods Folly Inlet and the Town of Holden Beach to the west and the Town of Caswell Beach and
the Cape Fear River to the east. The Town of Caswell Beach is also located on the island. The Town of
Oak Island is approximately 9 miles in length. It is bordered by the Atlantic Intracoastal Waterway
(AIW W) to the north and the Atlantic Ocean to the south. The island is accessed via 2 bridges. The
western bridge leads into the Town of Oak Island located off NC Highway 211 via Middleton Blvd. The
eastern bridge leads onto the island between Oak Island and Caswell Beach and is accessed from NC
Highway 133.
The project site extends approximately 21,000 linear feet from IOth Place West to SE 63rd Street. The
long-term erosion rate for the project area ranges from 0'-2'/year. The Division's calculated 100-year
storm recession line for the island was predicted to be 180'.
In 2001, the Town of Oak Island received sand on its beachfront via a deepening project of the
Wilmington Harbor federal channel and a federal habitat restoration project. The Town also periodically
receives sand along the eastern portion of its shoreline through ongoing maintenance of the federal
navigation channel through the Wilmington Harbor Sand Management Plan. The Town also constructed a
project in 2015 which dredged a portion of Eastern Channel with beneficial placement of sand on the west
end of Oak Island (State Permit #21-15 & ACE Action ID #2014-02180). Earlier in 2019, the US Army
Corps of Engineers placed a small quantity of sand on the western end of the island through maintenance
dredging of the Lockwoods Folly Inlet crossing. Following Matthew, a dune restoration project was also
authorized in 2017 that permitted the Town to repair the eroded frontal dune. That project ultimately
resulted in the placement of material that elicited significant compatibility concerns (Minor Permit #0I-
17-11). Due to ongoing storm erosion, the frontal dune throughout the project area ranges from being
heavily eroded to absent. Most of the material from the 2017 constructed dune project has since eroded,
with exception of a few diminished sections at the eastern end of the project and near Ocean Crest pier.
The applicant has identified a —304 acre borrow site off Jay Bird Shoals to supply sand for the project.
The current water depths at the site vary from approximately -20 to -28' NAVD88. (See Sheet C-301/
Index 21 of 22). Sediments collected via Vibracore samples within the borrow site showed a Unified Soils
Classification System (USCS) designation of predominantly SP-SM or SW. Gravel sized material
(>4.76mm) ranged from 0-7% with a maximum composite weight of 4.25%. Fines (<0.0625 mm) in
individual samples ranged from 1.29% to 9.87% with a maximum composite weight of 6.79% overall. A
a low -intensity, long -duration linear feature was identified within the borrow site by a remote sensing
survey and a minimum 50' buffer area on each side of the anomaly is proposed (see Appendix D-
Archeological Remote Sensing for more information). A follow-up Phase II Remote -Sensing
Archeological Survey was later submitted for inclusion in the application package. Additionally, a
question came up at the local stakeholder group with neighboring communities whether contaminated
sediments could be found within the borrow area due to the Duke Energy Brunswick Electric Steam Plant
outfall. The outfall (conveying non -contact cooling water from the nuclear plant) terminates
approximately 2,000' (-0.38 miles) offshore, south of the discharge canal at Caswell Beach. The borrow
area is located approximately 1 mile off Caswell Beach, a distance of more than half a mile from the
outfall. According to a representative of Duke
North Carolina Department of Environmental Quality I Division of Coastal Management
Wilmington Office 1127 Cardinal Drive Extension I Wilmington, North Carolina 28405
910.796,7215

Town of Oak Island Beach Nourishment
Page Three
Energy, a composite sampler at the outfall pipe is tested by the U.S. Nuclear Regulatory Commission
(NRC), testing levels for gamma emitters and tritium have consistently tested negligible to absent, and
results are in compliance with NRC guidelines and the State's National Pollutant Discharge Eliminatory
System (NPDES) permit.
The native beach was characterized using data collected by Athena earlier this year. Fines were calculated
at 1.88%, with sand comprising 98.96%, and granular and gravel material each at less than 1%. Mean
grain size was calculated at 0.27mm. Calcium carbonate was reported at 9.72%. Clast counts of shell and
rock material greater than 3" in size was initially evaluated at three 50,000 square foot sites; however,
only one location (Area 2) was within the project area boundaries. Concerns were expressed by the
applicant that the count performed within the project area may be artificially low due to recent bulldozing.
Forty-four (44) shells or rocks greater than 3" in size were found in Area 2, located between Stations
490+00 and 500+00. Due to rule language that requires the 50,000 square foot area assessed to be within
the project area, additional sampling from another area was requested of the applicant if it is felt that the
count at Site 2 does not accurately represent native material. Another cast count was subsequently
conducted between 22nd Place East and 25" Place East. In that area, 743 clasts were reported by the
applicant within a 50,000 square foot area. However, the report noted that most of the material was rock
remnants from the 2001 Turtle Habitat Restoration Project. As such, DCM does not concur that the area
qualifies as representative of the native beach and is requesting another location be evaluated. This
information will be relayed to agencies upon receipt of an acceptable report.
The waters in the project area fall within the Lumber and Cape Fear River Basins, as classified by the NC
Division of Water Resources (DWR). The waters of the Atlantic Ocean are classified as SB by the DWR.
The NC Division of Marine Fisheries has NOT designated any of the areas to be impacted as a Primary
Nursery Area, and there are no foreseen impacts to shellfish resources at this time.
PROPOSED PROJECT:
The applicant is proposing a beach nourishment and dune restoration project for the Town of Oak Island.
The project area would extend from 10" Place West to SE 63`d Street in the Town of Oak Island. The
overall proposed project length is approximately 4 miles (21,000 linear feet). The beach would be filled to
an elevation of+7' NAVD 88 with a 20: 1 slope out to tie into existing grade from -P to -10' NAVD88.
A dune is also proposed at an elevation ranging from 13.5' to 14.5' NAVD88, constructed with a 6' wide
dune crest, and at a 5:1 slope. This appears to advance the frontal dune area of the beach profile
approximately 35'- 65' waterward of its pre -Matthew location along approximately 30% of the project
area. Remaining sections appear to more closely follow the historic dune profile. Anticipated fill volumes
for the initial project range from 15 to 65 (average= 37) cubic yards per linear foot. As proposed, a gross
excavated volume of up to 1.1 million cubic yards of sand has been calculated to account for an estimated
placement loss of up to 30%. A final net volume of approximately 846,000 cubic yards is anticipated to
be placed on the beach, given current conditions. It is currently estimated that 5,315,000 square feet
would be filled below MHW (337,453 cubic yards). Of that material, approximately 2,178,000 square feet
(101,166 cubic yards) would also be located below MLW. Approximately 3,085,000 square feet (508,547
cubic yards) of beach fill material would be placed above the MHW line. The applicant also estimates
approximately 100' of fill would be placed waterward of the current MHW line on average, within a
maximum projected distance of 330' placed below MHW. While the application states the estimated
equilibrated recreational beach width (the distance between +7' NAVD88 to MHW) will roughly
approximate the existing beach width prior to Matthew, additional information submitted to
awaimiarm�mmm Pwh�
North Carolina Department of Environmental Quality I Division of Coastal Management
Wilmington Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
910.796.7215

Town of Oak Island Beach Nourishment
Page Four
DCM showed a slight overall narrowing of the beach width as compared to the more current recreational
beach width existing as of June 2019. A table provided by the applicant shows the average pre -Matthew
beach width at 66', the average pre -construction (June 2019) beach width at 81', and the average
anticipated post -construction equilibrated beach width at 63'. Estimated equilibration was simulated using
SBEACH 2-year return period storm. The applicant has also stated this project is the first phase of the
Town's overall plan and the Town intends to apply for a more comprehensive beach restoration project in
the near future.
As previously stated, the applicant states they propose to dredge the approximately 1.1 million cubic
yards of material from the Jay Bird Shoals site at a varying design depth to reduce impacts to the integrity
of the shoal feature and effects on the nearshore wave environment. The site has been divided into three
zones: Zone 1 would be excavated to a depth of -27' NAVD88. Zone 2 would be excavated to a design
depth of -31' NAVD88 and Zone 3's proposed dredge depth is -27' NAVD88. The material would be
dredged either via a hopper dredge, and transported to offshore temporary mooring, and then pumped by
submerged pipeline onto the beach, or excavated via cutterhead dredge and piped directly to the beach
from the borrow area.
10. ANTICIPATED IMPACTS
The proposed dredging associated with the project would result in impacts to up to 304 acres of
submerged bottom state waters. The project would result in the fill of approximately 71 acres of upper
beach (above MHW) and would fill approximately 122 acres of intertidal area and near -shore shallow
bottom. The dredging and beach fill would result in temporary increases in turbidity. Temporary impacts
to benthic and invertebrate infaunal communities can be expected. The applicant is proposing to limit
work between November 16 through April 30, thereby avoiding peak periods of biological activity. The
applicant has also committed to monitoring sand placement throughout the project to ensure material is
compatible and complies with State Technical Standards (15A NCAA07H .0312) as well as utilizing
existing permanent beach accessways with heavy equipment and via existing public access corridors. The
narrative states they would locate staging areas for construction equipment off the beach, but daily
equipment staging would be located on the beach seaward of the dune line. The narrative also states the
applicant also agrees to abide by many of the other standard conditions as addressed in Section 4 of the
Narrative (Proposed Conservation Measures).
Submitted by: Heather Coats Date: October 21, 2019 Office: Wilmington
North Carolina Department of Environmental Quality I Division of Coastal Management
Wilmington Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
910.796.7215

BRUNSWICK COUNTY
I OAK ISLAND RENOURISHMENT PROJECT 2019/2020
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OAK ISLAND, NORTH CAROLINA
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TOWN OF OAK ISLAND
4601 E. OAK ISLAND DRIVE
^ _ OAK ISLAND, NC 28465
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INDEX OF DRAWINGS
INDEX NO. SHEET NO. I SHEET TITLE
GENERAL
1
G-001
COVER SHEET
2
G-002
DRAWING INDEX
3
G-003
ABBREVIATIONS & LEGEND
4
G-004
KEY PLAN
CIVIL
5
C-100
PROJECT MAP AND KEY PLAN
6
C-101
SITE PLAN 1 OF 14
7
C-102
SITE PLAN 2 OF 14
8
C-103
SITE PLAN 3 OF 14
9
C-104
SITE PLAN 4 OF 14
10
C-105
SITE PLAN 5 OF 14
11
C-106
SITE PLAN 6 OF 14
12
C-107
SITE PLAN 7 OF 14
13
C-108
SITE PLAN 8 OF 14
14
C-109
SITE PLAN 9 OF 14
15
C-110
SITE PLAN 10 OF 14
16
C-111
SITE PLAN 11 OF 14
17
C-112
SITE PLAN 12 OF 14
18
C-113
SITE PLAN 13 OF 14
19
C-114
SITE PLAN 14 OF 14
20
C-115
BORROW AREA PLAN VIEW
21
C-301
BORROW AREA CROSS SECTIONS
22
C-302
TYPICAL CROSS SECTIONS
GENERAL NOTES:
1. ALL BEACH FILL, DREDGING AND PLANTING WORK SHALL CONFORM TO THE
REQUIREMENTS OF THESE PLANS AND SPECIFICATIONS.
2. THE CONTRACTOR SHALL PLACE THE PERMIT PLACARDS ON THE JOB SITE
AND SHALL COMPLY WITH ALL TERMS OF THE PERMITS PERTAINING
TO THE PERFORMANCE OF THE WORK. SEE THE TECHNICAL SPECIFICATIONS.
3. CONTRACTOR SHALL VERIFY ALL DIMENSIONS AND EXISTING CONDITIONS
BEFORE STARTING WORK. NOTIFY OWNER OF DISCREPANCIES.
4. ALL SAFETY REGULATIONS ARE TO BE STRICTLY FOLLOWED. METHODS OF
CONSTRUCTION AND ERECTION OF STRUCTURAL MATERIAL ARE THE
CONTRACTORS RESPONSIBILITY.
5. THE CONTRACTOR SHALL, ON A DAILY BASIS, REMOVE FROM THE SITE ANY
EXCAVATED MATERIAL OR DEBRIS. DISPOSAL OF THE MATERIALS IS THE
RESPONSIBILITY OF THE CONTRACTOR. ALL DEBRIS SHALL BE DISPOSED
OF IN A PERMITTED LANDFILL.
6. THESE PLANS ARE INCOMPLETE WITHOUT THE PROJECT TECHNICAL
SPECIFICATIONS. IF THERE ARE CONFLICTS BETWEEN THE PLANS AND
SPECIFICATIONS, THE CONTRACTOR SHALL ALERT THE OWNER AND
ENGINEER. THE TECHNICAL SPECIFICATIONS SHALL TAKE PRECEDENCE.
7. THE STAGING AND ACCESS AREAS SHOWN ON G-004 ARE OWNED BY THE TOWN OF
OAK ISLAND. COORDINATION WITH THE TOWN MANAGER SHALL BE REQUIRED BEFORE
USE. FOR THE STAGING AND ACCESS AREAS, THE POINT OF CONTACT IS:
MR. DAVID KELLY
TOWN MANAGER
TOWN OF OAK ISLAND
4601 EAST OAK ISLAND DRIVE
OAK ISLAND, NC 28465
[phone]
[e-mail]
8. STAGING AND ACCESS AREAS SHALL BE MAINTAINED BY THE CONTRACTOR. STAGING AND
ACCESS AREAS SHALL BE CLEARED OF DEBRIS AND CONTRACTOR INSTALLED AMENITIES
AT THE COMPLETION AND ACCEPTANCE OF WORK IN THE AREA. THE CONTRACTOR SHALL
RESTORE THE STAGING AND ACCESS AREAS TO THEIR ORIGINAL CONDITION AFTER WORK
IN THE AREA IS COMPLETE. THIS WORK INCLUDES REPLACEMENT OF FENCING, SIGNS,
SAND FENCE, BEACH VEGETATION, WALKWAYS, DUNES, DUNE VEGETATION, PARKING
FACILITIES, PAVED AREAS AND OTHER MISCELLANEOUS ITEMS. ALL REPLACEMENT
MATERIALS SHALL BE APPROVED BY THE OWNER BEFORE INSTALLATION.
9. UNLESS OTHERWISE APPROVED BY THE OWNER, EXCESS EQUIPMENT MAY ONLY
BE STORED IN APPROVED STORAGE/STAGING AREAS OR TEMPORARY AREAS
IN THE IMMEDIATE VICINITY OF THE BEACHFILL PLACEMENT SITE. THE OWNER
RESERVES THE RIGHT TO LIMIT SUCH AREAS AS DEEMED NECESSARY. OPERATION
OF GRADING AND OTHER CONSTRUCTION EQUIPMENT WILL NOT BE PERMITTED
OUTSIDE THE WORK AREA LIMITS EXCEPT FOR INGRESS AND EGRESS OF THE
SITE AT APPROVED LOCATIONS. THE STACKING OF DISCHARGE PIPES IN LAYERS
EXCEEDING TWO PIPES HIGH SHALL BE PROHIBITED IN ANY OF THE STORAGE
OR STAGING AREAS INCLUDING THE TEMPORARY AREAS.
10. ANY EXISTING SIGNS, FENCES, OR OTHER STRUCTURES WITHIN THE WORK LIMITS
SHALL BE PROTECTED AND/OR REMOVED AND LATER REPLACED BY THE
CONTRACTOR AS DIRECTED.
11. THE PLANE COORDINATES AND BEARINGS SHOWN FOR THE DREDGING SURVEYS ARE
BASED ON THE NORTH CAROLINA STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN
DATUM 83 (NAD 83).
12. ALL ELEVATIONS SHOWN ON THE DREDGING DRAWINGS ARE REFERENCED
TO NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88).
13. THE BATHYMETRY PRESENTED ON THE DREDGING PLANS IS BASED ON A SURVEY
COMPLETED IN JUNE 2019 BY GEODYNAMICS AND CAN ONLY BE CONSIDERED AS
INDICATING THE CONDITIONS AT THAT TIME.
14. THE BATHYMETRY/TOPOGRAPHY PRESENTED ON THE BEACH FILL PLANS AND SECTIONS IS BASED
ON A SURVEY COMPLETED IN JUNE 2019 BY TI COASTAL AND CAN ONLY BE CONSIDERED AS
INDICATING THE CONDITIONS AT THAT TIME.
15. THE MEAN HIGH WATER ELEVATION AND MEAN LOW WATER ELEVATION SHOWN ON THE BEACH
FILL DRAWINGS AND BELOW ARE BASED ON NOAA TIDAL DATUMS AT THE OAK ISLAND, ATLANTIC
OCEAN, NC STATION.
MEAN HIGH WATER (MHW) 1.8
1.8'
NAVD 88
MEAN TIDE LEVEL (MTL) -0.6
2.9'
MEAN LOWER WATER (MLW) -2.9
BID QUANTITIES
1. THE FOLLOWING ESTIMATES OF SAND QUANTITIES REQUIRED FOR THE PROJECT ARE:
BEACH RESTORATION 846,000 CY
2. THE FOLLOWING ESTIMATES OF PLANTING QUANTITIES REQUIRED FOR THE PROJECT ARE:
DUNE PLANTING 78, 500 SY
11111 7211001101 el
1. ALL DREDGING SHALL BE PERFORMED WITHIN THE LIMITS OF THE PERMITTED
DREDGING AREA AS SHOWN IN THE DRAWINGS.
2. PIPELINE CORRIDOR SHALL BE DELINEATED WITH BUOYS BY THE CONTRACTOR IN THE
PRESENCE OF THE OWNER BEFORE PLACEMENT.
3. A POST -DREDGE SURVEY OF THE BORROW AREA SHALL BE COMPLETED BY AN
INDEPENDENT PROFESSIONAL LAND SURVEYOR REGISTERED IN THE STATE OF NORTH
CAROLINA, COORDINATED AND PAID FOR BY THE CONTRACTOR TO STANDARDS OUTLINED IN
THE TECHNICAL SPECIFICATIONS.
RFACH FII I
1. ALL SAND EXCAVATED FROM THE BORROW AREAS SHALL BE TRANSPORTED TO, AND
DEPOSITED ON, THE BEACH BETWEEN THE LINES, GRADES, AND CROSS -SECTIONS SHOWN ON
THE DRAWINGS.
2. AFTER NOTIFICATION BY THE CONTRACTOR OF THEIR INTENT TO COMMENCE DREDGING AND
SAND PLACEMENT, A CURRENT BEACH SURVEY WILL BE PERFORMED BY THE OWNER. THE
CONTRACTOR SHALL NOTIFY THE OWNER AT LEAST 4 WEEKS PRIOR TO THE COMMENCEMENT
OF BEACH FILL PLACEMENT. THE UPDATED BEACH SURVEY WILL BE USED TO ADJUST THE
LIMITS AND GRADE LINES TO MEET THE FILL DENSITIES PROVIDED WITH THE SECTIONS ON
SHEETS C-302.
3. SAND SHALL BE PLACED WITHIN THESE LIMITS AND GRADE LINES AS PRACTICALLY AS
POSSIBLE. TOLERANCE SHALL BE WITHIN ±0.5 FOOT FOR BERM ELEVATION AND WIDTHS
OUT TO THE MEAN TIDE LEVEL (MTL). PAYMENT WILL BE MADE FOR THE CY/FT SHOWN ON
THE PLANS WITH A TOLERANCE OF ±10 % . EVERY ATTEMPT WILL BE MADE BY THE
CONTRACTOR TO FILL WITHIN THE PRESCRIBED TEMPLATE. SEE TECHNICAL
SPECIFICATIONS. THE BEACH FILL SHALL BE PLACED BY REACH FROM EAST TO WEST.
4. THE OWNER MAY MAKE ALTERATIONS IN THE PLAN DIMENSIONS, GRADE OF SLOPES, OR VOLUME
OF FILL PER FOOT OF BEACH IN ORDER TO ACCOUNT FOR CHANGED CONDITIONS SINCE THE TIME
OF THE EXISTING CONDITIONS SURVEY. THE CONTRACTOR SHALL WORK CLOSELY WITH THE
OWNER TO ENSURE THAT THE TOTAL QUANTITY OF SAND ALLOWED UNDER THE CONTRACT IS
PLACED AS EFFECTIVELY AS POSSIBLE.
5. CONTRACTOR SHALL TAKE CARE TO GRADE THE DUNE AND BERM SO THAT PONDING
LANDWARD OF THE CRESTS IS MINIMIZED.
6. EXISTING WALKWAYS SHALL REMAIN AND NOT BE DAMAGED BEYOND CURRENT CONDITIONS. ANY
ADDITIONAL DAMAGE WILL BE REPAIRED OR REPLACED AT THE CONTRACTORS COST AS DIRECTED
BY THE OWNER OR THE ENGINEER. FILL SHALL BE PLACED COMPLETELY UNDERNEATH AND/OR
AROUND STRUCTURES.
7. CONTOURS FOR THE BEACH FILL PLANS ARE SHOWN AT 1 FT INTERVALS.
8. PRE- AND POST -CONSTRUCTION SURVEYS OF THE BEACH AREA SHALL BE COMPLETED BY AN
INDEPENDENT PROFESSIONAL LAND SURVEYOR REGISTERED IN THE STATE OF NORTH
CAROLINA, COORDINATED AND PAID FOR BY THE CONTRACTOR. TRANSECTS SHALL BE AT
100-FOOT INTERVALS. ADDITIONAL ELEVATIONS SHALL BE TAKEN AS NECESSARY TO
ACCURATELY REPRESENT TOPOGRAPHY OF THE BEACH AREA.
9. BEACH FILL SLOPES CALLED OUT ON PLANS ARE HORIZONTAL: VERTICAL.
10. SEE TECHNICAL SPECIFICATION FOR ADDITIONAL PLACEMENT REQUIREMENTS.
11. THE CONTRACTOR SHALL PROVIDE TEMPORARY SAND RAMPS OVER THE PIPELINE FOR
PEDESTRIAN AND EMERGENCY VEHICLE ACCESS ALONG THE BEACH. THE MAXIMUM DISTANCE
BETWEEN THESE TEMPORARY SAND RAMPS SHALL BE 500 FEET. THESE TEMPORARY SAND
RAMPS SHALL BE LEVELED ONCE THE PIPELINE HAS BEEN MOVED. THE CONTRACTOR SHALL
ALSO CONSTRUCT A BARRIER TO KEEP THE PUBLIC AT LEAST 250 FEET FROM THE DISCHARGE
PIPE IN BOTH DIRECTIONS UP AND DOWN THE BEACH. SEE THE TECHNICAL SPECIFICATIONS.
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G_002 E
NOT TO BE USED FOR CONSTRUCTION
INDEX: 2 OF 22 ti
�1
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ABBREVIATIONS
CY
CUBIC YARDS
No.
NUMBER
FT
FEET OR FOOT
TYP
TYPICAL
MHW
MEAN HIGH WATER
WP
WORK POINT
MLW
MEAN LOW WATER
fQ
BASELINE
E MTL
MEAN TIDE LEVEL
@
AT
NAD
NORTH AMERICAN DATUM
-
APPROXIMATELY
NAVD
NORTH AMERICAN VERTICAL DATUM
NOAA
NATIONAL OCEANIC AND
ATMOSPHERIC ADMINISTRATION
LEGEND
EXISTING
PROPOSED
- - - - - - -
- MEAN HIGH WATER LINE - - - - - - - - -
MEAN LOW WATER LINE -----
MEAN TIDE LEVEL LINE - - - - - - -
PROPERTY LINE
D — — —
- MAJOR CONTOUR
- - - - - - - - -
- - MINOR CONTOUR
FILL SLOPE LIMIT ----------------------
FILL SLOPE BREAK - — — — — — — -
CONSTRUCTION BASELINE WORK POINT �e WP-##
{Z}
NGS STATION
NAME
NN
0
■
SHEET TYPE DESIGNATORS
0 I GENERAL (COVER SHEET, LEGEND, NOTES)
1 PLANS (HORIZONTAL VIEWS)
2 ELEVATIONS (NOT TYPICALLY USED)
3 SECTIONS (OVERALL VIEWS)
4 LARGE-SCALE VIEWS (PLANS, SECT. OR ELEV. - NOT DETAILS)
5 DETAILS (MAY BE PLAN, SECT. OR ELEV. VIEWS)
6 SCHEDULES
7 USER DEFINED
8 USER DEFINED
9 3D ISOMETRIC
DISCIPLINE DESIGNATORS
DISCIPLINE
DESIGNATOR
GENERAL
G
SURVEY/MAPPING
V
GEOTECHNICAL
B
CIVIL WORKS
W
CIVIL
C
STRUCTURAL
S
MECHANICAL
M
ELECTRICAL
E
OTHER DISCIPLINES
X
SECONDARY DESIGNATORS
DEMOLITION
D
GENERAL
G
SUBSTRUCTURE
B
FRAMING
F
COMPONENT
C
SITE
S
LEGEND
VIEW NUMBER VIEW NUMBER
M SAMPLE VIEW TITLE A3
CS-555 SCALE: 1"=50' SF-123
SHEET NUMBER VIEW
SHEET NUMBER VIEW REFERENCED TO
REFERENCED TO
VIEW TITLE DETAIL CALLOUT
VIEW NUMBER
C4 C4
G-101 � G-101
SHEET NUMBER VIEW
REFERENCED TO
SECTION CALLOUT SECTION CALLOUT
WITH JOG
�r SA123
KEYED NOTE
DETAIL CALLOUT WITH
VIEW NUMBER IS BASED ON THE (DACS) LOCATION OF THE LOWER -LEFT
EXTENTS OF THE VIEW ON THE REFERENCED SHEET. WHEN REFERENCING
DRAWING INFORMATION BETWEEN SHEETS, BOTH THE VIEW AND SHEET
NUMBERS MUST BE QUOTED TOGETHER - EITHER IN A CALLOUT FORMAT AS
SHOWN ABOVE OR IN THE FORM;
"VIEW NO./SHEET NO.- (EG Al/CS-5001)
1
2
3
4
5
D
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Y
U
C
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DRAWING AREA
Lu
Lu
B
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A
A
1 1 2 3 4
5
DRAWING AREA COORDINATE SYSTEM (DACS)
Sheet Reference
Number:
SF-102
SHEET
DESIGNATOR
SHEET TYPE
SHEET
SEQUENCE
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G-003
NOT TO BE USED FOR CONSTRUCTION
C
INDEX: 3 OF 22

SHEET C-114
E
0 0
0 0
0 0
� o
u�
01111111
I
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�T C-106
STAGING
AREA
SHEET C-113 SHEET C-112 cill - SHEET C-111
SHEET C-105 STAGING
AREAS-
oE_--F-_- SHEETC-104
O O
M +
h �
M �
B1 KEY PLAN
G-004 SCALE: 1"=1000'
Hm
ATLANTIC OCEAN
SHEET C-110
t, „4
B5 PROJECT GEODETIC
c-ooa CONTROLTIONS
SHEET C-102
STAGING -�--�
AREAS
0
N o
M +
O
SHEET -103
SH= 701
SHEETC-109
SHEETC-108 STAGING
AREA
SHEETC,707
0 0
SHEETC-106
_
0 0 7
++
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NGS MONUMENT
LONG BEACH AZ MK
Lu
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RED -
1
B5 PROJECT GEODETIC CONTROL STATIONS
G-004 SCALE: 1"=160'
MONUMENT
NORTHING
EASTING
ELEVATION
LONG BEACH AZ MK
60475.50
2271271.11
17.82
RED
60209.52
2271232.70
13.23
NOTES:
1. SEE SHEETS C-101 THRU C-114 FOR A MORE DETAILED VIEW OF ACCESS/STAGING
AREAS.
2. CONTRACTOR SHALL BEGIN PROJECT AT STATION 300+00 AND MOVE WEST.
80' 0' 80' 160'
SCALE: 1 "=160'
500' 0' 500' 1000'
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C
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OAK ISLAND
1il1111111
Hm
ST. JAMES
LONG BEACH
TOTAL FILL LENGTH = 21,000 FT
TOTAL FILL VOLUME = 795,000 CY
ATLANTIC
T
CAPE FEAR
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OCEAN
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ZONE 2
JAY BIRD SHOALS
ZONE 3
PROJECT BORROW AREA
SEE SHEET C-115 FOR
DETAILED INFORMATION
NOTE:
1. OFFLOADING STATION AT BEACH NOURISHMENT
SITES SHALL BE USED TO PUMP DREDGED MATERIAL
ONTO BEACH. THIS STATION SHALL MOVE EAST OR
WEST AS THE NOURISHMENT PROJECT IS COMPLETED.
DREDGED MATERIAL SHALL BE TRANSPORTED FROM
THE BORROW AREA DIRECTLY BY THE DREDGE AND
OFFLOADED AT THIS LOCATION. CONTRACTOR SHALL
PROVIDE MAP OF PROPOSED OFFLOADINGS STATIONS
AND PIPELINE IN ACCORDANCE WITH PERMITS, SEE
TECHNICAL SPECIFICATIONS.
2000' 0' 2000' 4000'
SCALE: 1"=4000'
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-- --- lu,
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C ROLIfJA C OLINA CAROLINA
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—W -- - PROPOSED T P OF DUNE a
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W i------- --- - - 0 0 _ - - - - - --- - - -- - --- --- - - - i -- --- --- - - - '----------------- ----
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--
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--
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_ — — — — — — — — --- -- - --- -- --_--= -= -=--_-_--�- — _ _ - — — — —-
------------------------- ---- --- - ----...................... ------ -
ROPOSED MTL - - - - - - - - - - -
i PROPOSED FORESHORE TOE (EL VARIES)
EXTSTMW EL =2.9'
-------------
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-- -- PROPOSED MLW-
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INDEX: 6 OF 22 ti
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0-00
+__—_--+—-�---- 315+00
-+------+- 320+00 PROPOSED LANDWARD EAST BEACH DRIVE
T - - Z- —TOE OF DUNE (ELVA�IES)--�LLZ-T--TIYwzLul
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60'
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INDEX' 7 OF 22 ti
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SCALE: 1 "=120'
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NOT TO BE USED FOR CONSTRUCTION
C-103 E
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=
INDEX: 9 OF 22 ti
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Reference No.
ISSUED:2019-08-16
C-105 E
NOT TO BE USED FOR CONSTRUCTION
=
INDEX: 10 OF 22 ti
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Reference No.
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NOT TO BE USED FOR CONSTRUCTION
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INDEX: 11 OF 22 ti
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INDEX' 12 OF 22 ti
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Reference No.
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C_108 E
NOT TO BE USED FOR CONSTRUCTION
=
INDEX: 13 OF 22 ti
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E
IJ
B
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TOE OF DUNE (EL VARIES)
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C-110 E
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INDEX: 15 OF 22 ti
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INDEX: 16 OF 22 ti
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INDEX: 17 OF 22 ti
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NOT TO BE USED FOR CONSTRUCTION =
INDEX: 18 OF 22 ti
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INDEX: 19 OF 22 ti
6

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40+00
50+00
LEGEND
A0 PROPOSED BORROW AREA CONTROL POINT
JB-#0 JAYBIRD SHOALS VIBRACORES
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El MIN 50' BUFFER EITHER SIDE OF THE MAG ANOMALY
---- MAG ANOMALY
JAY BIRD SHOALS VIBRACORES
COORDINATE TABLE
POINT
NORTHING
EASTING
A
48860.91
2286099.73
B
48860.91
2290099.73
C
47860.91
2290099.73
D
47857.74
2287099.73
E
47360.91
2287099.73
F
46854.57
2287604.15
G
46854.89
2288099.73
H
46855.61
2289734.56
1
46856.06
2289974.37
J
46856.16
2290099.73
K
43856.16
2290099.73
L
43856.16
2289099.73
M
44354.57
2289099.73
N
45356.15
2288101.32
O
45565.66
2287892.48
P
45667.35
2287791.65
Q
46860.91
2286599.73
R
46860.91
2286099.73
S
45860.91
2286099.73
T
45860.91
2285099.73
U
47860.91
2285099.73
V
47860.91
2286099.73
JAY BIRD SHOALS VIBRACORES
COORDINATE TABLE
POINT
NORTHING
EASTING
JB-01
47360.59
2286596.46
JB-02
47353.14
2287596.89
JB-03A
47352.99
2288596.24
JB-04A
47353.46
2289594.06
JB-05
46359.73
2286605.98
JB-06
46354.62
2287598.32
JB-07
46351.51
2288605.83
JB-08
46352.65
2289609.75
JB-09A
45360.59
2286606.37
JB-10
45354.27
2287598.25
JB-11A
45357.10
2288592.58
JB-12
45348.52
2289595.11
JB-13
44354.30
2289602.14
JB-14A
44365.30
2288598.53
JB-15
44361.78
2287596.08
JB-16A
44355.91
2286597.20
JB-17
46356.27
2285603.09
JB-18
47361.47
2285602.67
JB-19
48358.73
2285596.76
JB-20
48360.94
2286596.56
JB-21
48360.80
2287600.43
JB-22
48363.69
2288600.72
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�K I S L,q
r
1 CAR0��aP
\�REfRED IUIY
August 8, 2019
To Whom It May Concern:
The Town of Oak Island is currently pursuing a 2019/2020 Renourishment Project. As part of
this project, the Town has started the process to acquire the necessary easements, so that pending
permit approval, the Town is ready to proceed with the construction process. Please let me know
if you have any questions or if you need any additional information.
Sincerely,
David Kelly
Town Manager
[phone]
[e-mail]
4601 E. Oak. Island Drive • Oak Island, North Carolina 28465
Phone: [phone] • Fax: [phone] • Website: www.oal�islandnc.com

-,OWN OF
®�;®
�ORrN\��P
114"E. IDLY 1 "���
August 12, 2019
NC Division of Coastal Management
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: Authorized Agent Agreement
2019/2020 Renourishment Project
Town of Oak Island, Brunswick County
To Whom It May Concern:
Phone [phone]
Fax [phone]
This is to inform you that Moffatt and Nichol has been approved by the Town of Oak Island to act
as the Authorized Agent for the above -referenced project. Moffatt and Nichol is authorized to act
on behalf of the applicant on matters related to the NCDCM Major Permit and related federal
permits.
Please call me if you have any questions or need additional information.
Sincerely,
David Kelly
Town Manager
[phone]
[e-mail]
4601 E. Oak Island Drive • Oak Island, North Carolina 28465
Phone: [phone] • Fax: [phone] Website: www.oal,-islandnc.com

OCEAN HAZARD AEC NOTICE
roject is in an: '� Ocean Erodible Area High Hazard Flood Area
roperty Owner:
roperty Address:
ate Lot Was Platted: I\�/A
This notice is intended to make you, the applicant, aware of the
special risks and conditions associated with development in this
area, which is subject to natural hazards such as storms, erosion
and currents. The rules of the Coastal Resources Commission
require that you receive an AEC Hazard Notice and
acknowledge that notice in writing before a perrnit for
development can be issued.
The Commission's rules on building standards, oceanfront
setbacks and dune alterations are designed to minimize, but not
eliminate, property loss from hazards. By granting permits, the
Coastal Resources Commission does not guarantee the safety of
the development and assumes no liability for future damage to
the development. Permits issued in the Ocean Hazard Area of
Environmental Concern include the condition that structures be
relocated or dismantled if they become imminently threatened
by changes in shoreline configuration. The structure(s) must be
relocated or dismantled within two (2) years of becoming
imminently threatened, and in any case upon its collapse or
subsidence.
The best available information, as accepted by the Coastal
Resources Commission, indicates that the annual long-term
average ocean erosion rate for the area where your property is
located is Z feet per year.
The rate was established by careful analysis of aerial
photographs of the coastline taken over the past 50 years.
Stuilies also indicate that the shoreline could move as much as
feet landward in a major storm.
The flood waters in a major storm are predicted to be about
12-15 feet deep in this area.
Preferred oceanfront protection measures are beach nourishment
and relocation of threatened structures. }-lard erosion control
structures such as bulkheads, seawalls, revetments, groins, jetties
and breakwaters are prohibited. Ternporary sand bags may be
authorized under certain conditions.
The applicant must acknowledge this information and
requirements by signing this notice in the space below, Without
the proper signature, the application will not be complete.
Property Owner Signature r — Datd
Inlet Hazard Area
SPECIAL NOTE: This hazard notice is required for
development in areas subject to sudden and massive storms and
erosion. Permits issued for development in this area expire on
December 31 of the third year following the year in which the
permit was issued. Shortly before work begins on the project
site, the Local Permit Officer must be contacted to determine the ;
vegetation line and setback distance at your site. If the property
has seen little change since the time of perrnit issuance, and the
proposed development can still meet the setback requirement,
the LPO will inform you that you may begin work. Substantial
progress on the project must be made within 60 days of this
setback determination, or the setback must be re -measured. Also,
the occurrence of a major shoreline change as the result of a
storm within the 60-day period will necessitate re -measurement
of the setback. It is important that you check with the LPO
before the permit expires for official approval to continue the
work after the permit has expired. Generally, if foundation
pilings have been placed and substantial progress is continuing,
perrnit renewal can be authorized. It is unlawful to continue
work after permit expiration.
For more information, contact:
L-Lea'7-a-v V- cad -
Local Permit Officer
127 L, Loa b an"le
Address
�,ti' i 1 Ni i n 6 N r- 2-k4-OS
Locality
q(o-7,1(P-75oZ
Phone Number
Revised May 2010

BEFORE YOU BUILD
Setting Back for Safety: A Guide to Wise Development Along the Oceanfront
When you build along the oceanfront, you take a calculated risk.
Natural forces of water and wind collide with tons of force, even
on calm days.
rvian-made structures cannot be guaranteed to survive the force
of a hurricane. Long-term erosion (or barrier island migration)
may take from two to ten feet of the beach each year, and,
sooner or later, will threaten oceanfront structures. These are the
facts of life for oceanfront property owners.
The Coastal Resources Commission (CRC) has adopted rules for
building along the oceanfront. The rules are intended to avoid an
unreasonable risk to life and property, and to limit public and
private losses from storm and long-term erosion. These rules
lessen but do not eliminate the element of risk in oceanfront
development.
As you consider building along the oceanfront, the CRC wants
you to understand the Hiles and the risks. With this knowledge,
you can make a more informed decision about where and how to
build in the coastal area.
The Rules
When you build along the oceanfront, coastal management rules
require that the structure be sited to fit safely into the beach
environment.
Structures along the oceanfront, less than 5,000 square feet in
size, must be behind the frontal dune, landward of the crest of
the primary dune, and set back from the first line of stable
natural vegetation a distance equal to 30 times the annual
erosion rate (a minimum of 60 feet). The setback calculation
increases as the size of the structure increases [15A NCAC
714.0306(a)(2)]. For example: A structure between 5,000 and
10,000 square feet would require a setback from the first line of
stable, natural vegetation to a distance equal to 60 times the
annual erosion rate (a minimum of 120 feet). The graduated
setback continues to increase through structure sizes greater than
100,000 square feet.
The Reasons
The beachfront is an ever -changing landform. The beach and
the dunes are natural "shock absorbers," taking the beating of the
wind and waves and protecting the inland areas. By
incorporating building setbacks into the regulations, you have a
good chance of enjoying the full life of the structure. At first, it
seems very inviting to build your dream house as close to the
beach as possible, but in five years you could find the dream has
become a nightmare as high tides and storm tides threaten your
investment.
The Exception ,,��
The Coastal Resources Commission recognized that these ruless,,
initially passed in June 1979, might prove a hardship for some
property owners. Therefore, they established an exception for
lots that cannot meet the setback requirement. The exception
allows buildings in front of the current setback, if the following
conditions apply:
1) the lot must have been platted as of June 1, 1979, and
is not capable of being enlarged by combining with
adjoining land under the same ownership;
2) development must be constructed as far back on the
property as possible and in no case less than 60 feet
landward of the vegetation line;
3) no development can take place on the frontal dune;
4) special construction standards on piling depth and
square footage must be met; and
5) all other CAMA, state and local regulations must be
met.
The exception is not available in the Inlet Hazard Area.
To determine eligibility for the exception the Local Permit
Officer will make these measurements and observations:
required setback from vegetation line
exception setback (maximum feasible)
rear property line setback
max. allowable square footage on lowest floor
PRE -PERMIT STRUCTURE; INADEQUATE SETBACK
PERMITTED STRUCTURE; PRE -STORM BEACH PROFILE
ADEQUATE POST -STORM BEACH PROFILE
SETBACK
ONE YEAR AFTER STORhItBEACH REBUILDING
_..
After the storm, the house on the dune will be gone. The other house has a much better chance of survival.

DCM MP4
APPLICATION for
Major Development Permit
(last revised 12/27/06)
North Carolina DIVISION OF COASTAL MANAGEMENT
1. Primary Applicant/ Landowner Information
Business Name
Project Name (if applicable)
Town Of Oak Island
2019/2020 Oak Island Renourishment Project
Applicant 1: First Name
MI
Last Name
David
Kelly
Applicant 2: First Name
MI
Last Name
If additional applicants, please attach an additional page(s) with names listed.
Mailing Address
PO Box
City
State
4601 E Oak Island Drive
Oak Island
NC
Phone No.
ZIP
Country
FAX No.
199
10-278-501128465
USA
100 - 201 - 8002 ext.
Street Address (if different from above)
City
State
ZIP
Email
[e-mail]
2. Agen Mon tractor Information
Business Name
Moffatt And Nichol
Agent/ Contractor 1: First Name
MI
Last Name
Johnny
D
Martin
Agent/ Contractor 2: First Name
MI
Last Name
Mailing Address
PO Box
City
State
4700 Falls of Neuse Road, Suite 300
Raleigh
NC
ZIP
Phone No. 1
Phone No. 2
27609
919 - 781 -
4626 ext.
- - ext.
FAX No.
Contractor #
919 781 4869
Street Address (if different from above)
City
State
ZIP
Email
[e-mail]
<Form continues on back>
252-808-2808 .. 1-888-4RCOAST .. www.nccoastaimanagement.net

Form DCM MP-1 (Page 2 of 5)
APPLICATION for
Major Development Permit
252-808-2808 .. 1-888-4RCOAST .. www.nccoastaimanagement.net

Form DCM MP-1 (Page 3 of 5)
APPLICATION for
Major Development Permit
3. Project Location
County (can be multiple)
Street Address
State Rd. #
Brunswick
10" PI W to SE 63rd St
N/A
Subdivision Name
City
State
Zip
Oak Island
NC
28465 -
Phone No.
Lot No.(s) (if many, attach additional page with list)
- - ext.
I I I ,
a. In which NC river basin is the project located?
b. Name of body of water nearest to proposed project
Lumber
Atlantic Ocean
c. Is the water body identified in (b) above, natural or manmade?
d. Name the closest major water body to the proposed project site.
®Natural ❑Manmade ❑Unknown
Atlantic Ocean
e. Is proposed work within city limits or planning jurisdiction?
f. If applicable, list the planning jurisdiction or city limit the proposed
®Yes ❑No
work falls within.
Town of Oak Island
4.
Site Description
a.
Total length of shoreline on the tract (ft.)
b. Size of entire tract (sq.ft.)
21,000 ft
N/A
c.
Size of individual lot(s)
d. Approximate elevation of tract above NHW (normal high water) or
N/A, I ,
NWL (normal water level)
(If many lot sizes, please attach additional page with a list)
-10 to 14.5 ft NAVD88 (-11.8 ft to 12.7 ft MHW)
❑NHW or ❑NWL
e.
Vegetation on tract
Primary dune vegetation including sea oats and bitter panicum; heavily eroded and escarped dune will be replaced during
project construction
f.
Man-made features and uses now on tract
No man-made features other than beach access stairs/dune walkovers; uses include recreation and habitat for sea turtles,
shorebirds, etc.
g.
Identify and describe the existing land uses admiacent to the proposed project site.
Developed - residential
h.
How does local government zone the tract?
i. Is the proposed project consistent with the applicable zoning?
N/A
(Attach zoning compliance certificate, if applicable)
❑Yes ❑No ®NA
j.
Is the proposed activity part of an urban waterfront redevelopment proposal? ❑Yes ®No
k.
Hasa professional archaeological assessment been done for the tract? If yes, attach a copy. ®Yes ❑No ❑NA
If yes, by whom? Tidewater Atlantic Research, Inc.
I.
Is the proposed project located in a National Registered Historic District or does it involve a ❑Yes ®No ❑NA
National Register listed or eligible property?
<Form continues on next page>
252-808-2808 .. 1-888-4RCOAST .. www.nccoastaimanagement.net

Form DCM MP-1 (Page 4 of 5)
APPLICATION for
Major Development Permit
m. (i) Are there wetlands on the site? ❑Yes ®No
(ii) Are there coastal wetlands on the site? ❑Yes ®No
(iii) If yes to either (i) or (ii) above, has a delineation been conducted? ❑Yes ®No
(Attach documentation, if available)
n. Describe existing wastewater treatment facilities.
All area's wastewater treatment is handled by an off -site treatment center.
o. Describe existing drinking water supply source.
Potable water in Oak Island is provided by Oak Island Public Utilities Department & utilizes deep groundwater wells and the
Cape Fear River for water supply
p. Describe existing storm water management or treatment systems.
No impervious area - all stormwater infiltrates on the beach
5. Activities and Impacts
a. Will the project be for commercial, public, or private use? ❑Commercial ®Public/Government
❑ Private/Community
b. Give a brief description of purpose, use, and daily operations of the project when complete.
The proposed project consists of excavating up to 1,100,000 cy (this includes 30% dredge losses) of beach -quality sediment
from Jay Bird Shoals, a borrow area situated a distance of approximately one mile offshore of Oak Island/Caswell Beach.
The renourishment area will cover approximately 21,000 ft along the oceanfront shoreline of Oak Island. See attached
project narrative for more information.
c. Describe the proposed construction methodology, types of construction equipment to be used during construction, the number of each type
of equipment and where it is to be stored.
The proposed project would involve use of a hopper or cutter dredge to excavate sand from Jay Bird Shoals borrow area.
Placement and grading activities on the beach would involve the use of bulldozers to redistribute and grade the beach fill
material to the proposed beach profile. Land -based equipment will be brought to the site over public roads and will enter the
beach at existing permanent beach accesses and can be stored at staging areas. See attached project narrative for more
information..
d. List all development activities you propose.
Excavation and filling by hopper or cutter dredge and pipeline for beach nourishment.
e. Are the proposed activities maintenance of an existing project, new work, or both? Maintenance of existing project
f. What is the approximate total disturbed land area resulting from the proposed project? 193 ❑Sq.Ft or ®Acres
g. Will the proposed project encroach on any public easement, public accessway or other area ❑Yes ®No ❑NA
that the public has established use of?
h. Describe location and type of existing and proposed discharges to waters of the state.
Dredge slurry discharge of approximately 75% water and 25% sand
i. Will wastewater or stormwater be discharged into a wetland? ❑Yes ®No ❑NA
If yes, will this discharged water be of the same salinity as the receiving water? ❑Yes ❑No ®NA
j. Is there any mitigation proposed? ❑Yes ®No ❑NA
If yes, attach a mitigation proposal.
252-808-2808 .. 1-888-4RCOAST .. www.nccoastalmanagement.net

Form DCM MP-1 (Page 5 of 5)
APPLICATION for
<Form continues on back>
Major Development Permit
6. Additional Information
In addition to this completed application form, (MP-1) the following items below, if applicable, must be submitted in order for the application
package to be complete. Items (a) — (f) are always applicable to any major development application. Please consult the application
instruction booklet on how to properly prepare the required items below.
a. A project narrative.
b. An accurate, dated work plat (including plan view and cross -sectional drawings) drawn to scale. Please give the present status of the
proposed project. Is any portion already complete? If previously authorized work, clearly indicate on maps, plats, drawings to distinguish
between work completed and proposed.
c. A site or location map that is sufficiently detailed to guide agency personnel unfamiliar with the area to the site.
d. A copy of the deed (with state application only) or other instrument under which the applicant claims title to the affected properties.
e. The appropriate application fee. Check or money order made payable to DENR.
f. A list of the names and complete addresses of the adjacent waterfront (riparian) landowners and signed return receipts as proof that such
owners have received a copy of the application and plats by certified mail. Such landowners must be advised that they have 30 days in
which to submit comments on the proposed project to the Division of Coastal Management.
Name LMF Ventures NC LLC Phone No.
Address 723 W. Beach Dr, Oak Island, NC 28465
Name Tate Robert D Etux Leigh F Phone No.
Address 122 SE 63rd St, Oak Island, NC 28465
Name NIA Phone No.
Address
g. A list of previous state or federal permits issued for work on the project tract. Include permit numbers, permittee, and issuing dates.
General Permit #s 63904-63907, issued 21 May 2014 CAMA Major Permit #140-10, issued 26 January 2017
CAMA Minor Permit#OI 17-11, issued 8 March 2017
h. Signed consultant or agent authorization form, if applicable.
i. Wetland delineation, if necessary.
j. A signed AEC hazard notice for projects in oceanfront and inlet areas. (Must be signed by property owner)
k. A statement of compliance with the N.C. Environmental Policy Act (N.C.G.S. 113A 1-10), if necessary. If the project involves expenditure
of public funds or use of public lands, attach a statement documenting compliance with the North Carolina Environmental Policy Act.
7. Certification and Permission to Enter on Land
I understand that any permit issued in response to this application will allow only the development described in the application.
The project will be subject to the conditions and restrictions contained in the permit.
I certify that I am authorized to grant, and do in fact grant permission to representatives of state and federal review agencies to
enter on the aforementioned lands in connection with evaluating information related to this permit application and follow-up
monitoring of the project.
I further certify that the information provided in this application is truthful to the best of my knowledge.
Date August 23, 2019 Print Name _David Kelly_II
Signature
Please indicate application attachments pertaining to your proposed project.
®DCM MP-2 Excavation and Fill Information ❑DCM MP-5 Bridges and Culverts
❑DCM MP-3 Upland Development
❑DCM MP-4 Structures Information
252-808-2808 .. 1-888-4RCOAST .. www.nccoasta(management.net

Form DCM MP-2
EXCAVATION and FILL
(Except for bridges and culverts)
Attach this form to Joint Application for CAMA Major Permit, Form DCM MP-1. Be sure to complete all other sections of the Joint
Application that relate to this proposed project. Please include all supplemental information.
Describe below the purpose of proposed excavation and/or fill activities. All values should be given in feet.
Access
Other
Channel
Canal
Boat Basin
Boat Ramp
Rock Groin
Rock
(excluding
(NLW or
Breakwater
shoreline
NWL)
stabilization
Length
N/A
N/A
N/A
N/A
N/A
N/A
21,000'
Width
400'
Avg. Existing
NA
NA
-1.1' NAVD88
Depth
Final Project
+14.5'
Depth
NA
NA
NAVD88 &
Below
1.
EXCAVATION
El This section not applicable
a.
Amount of material to be excavated from below NHW or NWL in
b.
Type of material to be excavated.
cubic yards.
Fine-grained sand. See attached project narrative
1,100,000 cy from Jay Bird Shoals
C.
(i) Does the area to be excavated include coastal wetlands/marsh
d.
High -ground excavation in cubic yards.
(CW), submerged aquatic vegetation (SAV), shell bottom (SB),
None
or other wetlands (WL)? If any boxes are checked, provide the
number of square feet affected.
❑CW ❑SAV ❑SB
❑WL ®None
(ii) Describe the purpose of the excavation in these areas:
Beach Renourishment for Oak Island Shoreline
2.
DISPOSAL OF EXCAVATED MATERIAL
❑This section not applicable
a.
Location of disposal area.
b.
Dimensions of disposal area.
Oceanfront Shoreline - Town of Oak Island
21,000' Long x 400' Wide
C.
(i) Do you claim title to disposal area?
d.
(i) Will a disposal area be available for future maintenance?
❑Yes ❑No ®NA
®Yes ❑No ❑NA
(ii) If no, attach a letter granting permission from the owner.
(ii) If yes, where?
Along entire oceanfront shoreline as needed for
maintenance & replacement
e.
(i) Does the disposal area include any coastal wetlands/marsh
f.
(i) Does the disposal include any area in the water?
(CW), submerged aquatic vegetation (SAV), shell bottom (SB),
®Yes [:]No ❑NA
or other wetlands (WL)? If any boxes are checked, provide the
number of square feet affected.
(ii) If yes, how much water area is affected?
❑CW ❑SAV ❑SB
122 Acres below MHW 50 Acres below MLW
OWL ®None
(ii) Describe the purpose of disposal in these areas:
Shore Protection
252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanagement.net revised:12/26/06

Form DCM MP-2 (Excavation and Fill, Page 2 of 3)
3. SHORELINE STABILIZATION ❑This section not applicable
(If development is a wood groin, use MP-4 — Structures)
a. Type of shoreline stabilization:
❑Bulkhead ❑Riprap ❑Breakwater/Sill ®Other: Beach
Nourishment
c. Average distance waterward of NHW or NWL: Existing to
proposed MHW — 100'
e. Type of stabilization material:
Fine-grained sand
g. Number of square feet of fill to be placed below water level.
Bulkhead backfill Riprap
Breakwater/Sill Other 5,315,000 below MHW
2,178,000 below MLW
i. Source of fill material.
Jay Bird Shoals - See Maps
b. Length: 21,000'
Width: 400'
d. Maximum distance waterward of NHW or NWL: 330'
f. (i) Has there been shoreline erosion during preceding 12
months?
®Yes ❑No ❑NA
(ii) If yes, state amount of erosion and source of erosion amount
information.
68,072 CY Volume Loss Above EL -25' NAVD88 During
Hurricane Florence
586,291 CY Volume Loss Above EL -25' NAVD88 During
Hurricane Matthew
h. Type of fill material.
Fine-grained sand
4. OTHER FILL ACTIVITIES ❑This section not applicable
(Excluding Shoreline Stabilization)
a. (i) Will fill material be brought to the site? ®Yes ❑No ❑NA
If yes,
(ii) Amount of material to be placed in the water 337,453 cv
below MHW: 101,166 cy below MLW
(iii) Dimensions of fill area 21,000' Long x 400' Wide
(iv) Purpose of fill
Shoreline Protection
b. (i) Will fill material be placed in coastal wetlands/marsh (CW),
submerged aquatic vegetation (SAV), shell bottom (SB), or
other wetlands (WL)? If any boxes are checked, provide the
number of square feet affected.
❑CW ❑SAV ❑SB
❑WL ®None
(ii) Describe the purpose of the fill in these areas:
N/A
5. GENERAL
a. How will excavated or fill material be kept on site and erosion b. What type of construction equipment will be used (e.g., dragline,
controlled? backhoe, or hydraulic dredge)?
See Attached Project Narrative Trailing Suction Hopper Dredge or Cutter Suction (hydraulic)
Dredge
C. (i) Will navigational aids be required as a result of the project? d
®Yes ❑No ❑NA
(ii) If yes, explain what type and how they will be implemented.
US Coast Guard will be notified and a Notice to Mariners will be
published.
(i) Will wetlands be crossed in transporting equipment to project
site? ❑Yes ®No ❑NA
(ii) If yes, explain steps that will be taken to avoid or minimize
environmental impacts.
See Attached Project Narrative
252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanagement.net revised: 12/26/06

Form DCM MP-2 (Excavation and Fill, Page 3 of 3)
August 23, 2019
Date
2019/2020 Oak Island Renourishment Project
Project Name
David Kelly II, Town Manager
Apgricant Name
Applicant Signature
252-808-2808 :: 1-888-4RCOAST :: www.nccoastaimanagement.net revised: 12/26/06

North Carolina Division of Coastal Management
Major Permit Application
2019/2020 Renourishment Project
Oak Island, Brunswick County, North Carolina
September 16, 2019
Proposed by:
Town of Oak Island
Brunswick County, North Carolina
Prepared for:
North Carolina Department of Environmental Quality
Division of Coastal Management
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
Prepared by:
MOFFATT & NICHOL
4700 Falls of Neuse Road
Suite 300
Raleigh, North Carolina 27609

Table of Contents
1.0
INTRODUCTION.................................................................................................................................1
1.1
Background...................................................................................................................................1
1.2
Purpose and Need.........................................................................................................................3
2.0
DECRIPTION OF THE PROPOSED ACTION..........................................................................................5
2.1
Project Description........................................................................................................................5
2.2
Methods of Construction............................................................................................................30
2.3
Sediment Compatibility...............................................................................................................34
2.3.1
Native Beach Sediment.......................................................................................................34
2.3.2
Proposed Borrow Area Sediment.......................................................................................36
2.4
Borrow Area Modeling................................................................................................................40
2.5
Survey Data Collection................................................................................................................42
3.0
CULTURAL RESOURCES...................................................................................................................45
4.0
PROPOSED CONSERVATION MEASURES.........................................................................................45
5.0
COMPLIANCE WITH BRUNSWICK COUNTY AND CAMA LAND USE PLAN.......................................48
6.0
COMPLIANCE WITH THE NC ENVIRONMENTAL POLICY ACT..........................................................48
7.0
CONSTRUCTION EASEMENTS..........................................................................................................49
8.0
REFERENCES....................................................................................................................................49
APPENDIX A — Permit Drawings
APPENDIX B — Sediment Compatibility Analysis & Vibracore Logs
APPENDIX C —Jay Bird Shoals Borrow Area Modeling
APPENDIX D —Stakeholder Meeting Minutes
APPENDIX E — Preliminary Archaeological Assessment
APPENDIX F — Letter of Intent to Obtain Perpetual Easements
ATTACHMENT 1 DCM MP — 1 Application
ATTACHMENT 2 DCM MP — 2 Excavation and Fill
NCDCM Major Permit Application Moffatt & Nichol
2019/2020 Oak Island Renourishment Project September 2019

LIST OF FIGURES
Figure 1-1. Vicinity and Location Map.....................................................................................................
Figure 1-2. Summary of Oak Island Renourishment History....................................................................
Figure2-1. Project Map...........................................................................................................................
Figure 2-2. Oak Island and Bald Head Jay Bird Shoals Borrow Areas ......................................................
Figure 2-3. East End of Renourishment Plan............................................................................................
Figure 2-4. Renourishment Plan..............................................................................................................
Figure 2-5. Renourishment Plan..............................................................................................................
Figure 2-6. Renourishment Plan..............................................................................................................
Figure 2-7. Renourishment Plan..............................................................................................................
Figure 2-8. Renourishment Plan..............................................................................................................
Figure 2-9. Renourishment Plan..............................................................................................................
Figure 2-10. Renourishment Plan............................................................................................................
Figure 2-11. Renourishment Plan............................................................................................................
Figure 2-12. Renourishment Plan............................................................................................................
Figure 2-13. Renourishment Plan............................................................................................................
Figure 2-14. Renourishment Plan............................................................................................................
Figure 2-15. Renourishment Plan............................................................................................................
Figure 2-16. West End of Renourishment Plan........................................................................................
Figure 2-17. Jay Bird Shoals Dredging Plan..............................................................................................
Figure 2-18. Typical Borrow Area Cross Sections.....................................................................................
Figure 2-19. Station 330+00 Equilibrated Construction Template..........................................................
Figure 2-20. Station 370+00 Equilibrated Construction Template..........................................................
Figure 2-21. Station 410+00 Equilibrated Construction Template..........................................................
Figure 2-22. Station 450+00 Equilibrated Construction Template..........................................................
Figure 2-23. Station 480+00 Equilibrated Construction Template..........................................................
Figure 2-24. Typical Renourishment Template Cross Sections................................................................
Figure2-25. Staging Areas.......................................................................................................................
Figure 2-26. Native Sediment Sample Transects.....................................................................................
Figure2-27. Clast Survey Areas................................................................................................................
Figure 2-28. Jay Bird Shoals Borrow Area................................................................................................
Figure 2-29. After dredge bathymetry effects on residual tidal currents over a spring neap tidal cycle
Figure 2-30. Wave induced longshore sediment transport gradients along Caswell Beach shoreline ...
Figure 2-31. Multibeam, Magnetometer, and Sidescan Sonar Survey Coverage ....................................
Figure 2-32. Sub -bottom Grid overlaid with Multibeam Survey.............................................................
Figure 4-1. Post Construction Monitoring of Caswell Beach...................................................................
.2
.3
.6
.7
.8
.9
10
11
12
13
14
15
16
17
18
19
20
21
23
24
25
26
26
27
27
29
33
34
36
38
41
42
44
45
48
LIST OF TABLES
Table 1. Preliminary length and renourishment fill volume......................................................................30
Table 2. Native Beach Characteristics and NCAC Rule Parameters............................................................35
NCDCM Major Permit Application Moffatt & Nichol
2019/2020 Oak Island Renourishment Project September 2019

Table 3. Native beach sediment statistics...................................................................................................35
Table 4. Sediment characteristics of material proposed for placement on Oak Island..............................39
Table 5. Sediment statistics of material proposed for placement on Oak Island.......................................39
Table 6. Composite sediment characteristics of proposed beach fill compared to native sediment ........40
Table 7. Composite sediment statistics of proposed beach fill compared to native sediment..................40
NCDCM Major Permit Application Moffatt & Nichol
2019/2020 Oak Island Renourishment Project September 2019

1.0 INTRODUCTION
1.1 Background
The Town of Oak Island (Town) is located along the Atlantic Ocean, in Brunswick County, NC
between the Cape Fear River Inlet and Lockwoods Folly Inlet. The Town can be accessed by
driving south from Wilmington on U.S. Highway 17 past the towns of Belville and Bolivia, then
following SR 1500 south across the Atlantic Intracoastal Waterway (AIWW) to the Island (Figure
1-1).
The history of renourishment projects on Oak Island dates back to 2001 with the introduction of
the Wilmington Harbor Sand Management Plan (WHSMP). WHSMP refers to the deepening
project administered by the United States Army Corps of Engineers (USACE) and the periodic
maintenance of the harbor entrance. The initial project by the USACE deepened the Wilmington
Harbor in 2001 and placed material along the eastern and western portions of the Oak Island
shoreline. Following the initial project, Oak Island has received beneficial placement of material
from the WHSMP in 2009 and 2018. In 2001 the USACE also conducted a restoration project
across the central portion of the island. The material for this restoration project came from an
upland borrow area called Yellow Banks which unintentionally placed rocks on the beach which
are still present today despite constant removal efforts. In 2009 the USACE dredged the
Lockwoods Folly River Crossing and placed material on western end of Oak Island's shoreline. In
2015 the Town of Oak Island sponsored the Lockwoods Folly Habitat Restoration Project, which
consisted of dredging the Eastern Channel with beneficial placement of compatible material on
the western end of Oak Island's shoreline. After Hurricane Matthew in October 2016, the Town
initiated a dune restoration project to place material along 4.4 miles of shoreline. Earlier in 2019,
material from the Atlantic Intracoastal Waterway (AIWW) at Lockwoods Folly Inlet was
beneficially placed on the western end of Oak Island's shoreline by the USACE. The eastern and
western ends of Oak Island's shoreline experience periodic renourishment as sand is readily
available from the inlets on either end of the island with established programs by the USACE to
dredge them and place material. The central portion of the island has not experienced a
significant renourishment event since 2001. All USACE and Town renourishment project
placement volumes and extents discussed above are shown in Figure 1-2.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
1

BRUNSWICK COUNTY
OAK ISLAND RENOURISHMENT PROJECT 2019/2020
OAK ISLAND, NORTH CAROLINA
ZOK'N p
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TOWN OF OAK ISLAND
4601 E. OAK ISLAND DRIVE
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OAK ISLAND, NC 28465
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A T L. A N T I C O C C A N
VICINITY MAP ' x n LOCATION MAP
Figure 1-1. Vicinity and Location Map
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
2
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September 2019

Figure 1-2. Summary of Oak Island Renourishment History
1.2 Purpose and Need
The Town is vulnerable to significant damage from minor storms since the overall beach profile
has been lowered substantially; there is essentially no protective dune throughout most of the
oceanfront. Shoreline and dune erosion during Hurricanes Matthew (2016) and Florence (2018)
were particularly significant along the proposed project area. Approximately 586,291 cubic yards
(cy) above -25ft NAVD88, was lost during Hurricane Matthew and 68,072 cy was lost during
Hurricane Florence.
In 2017/2018, as a result of Hurricane Matthew, FEMA provided funding for construction of a
temporary protection measure in the form of an 'emergency berm' which placed approximately
120,000 cy of material in this area to provide immediate protection until a full project could be
completed. With the passing of Florence and Michael in 2018, this emergency material has
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
3
Moffatt & Nichol
September 2019

served its purpose to provide immediate protection and now needs to be replenished. The
purpose of the proposed project is to provide protection to infrastructure from a 25-year return
period storm event.
From an economic perspective, the need for the proposed 2019/2020 Renourishment project is
to protect and preserve a large portion of the town's infrastructure, tourism industry, and tax
base.
During the proposed beach renourishment project, the Town has several objectives. Those
objectives are summarized as follows:
• Provide protection to ocean susceptible infrastructure and property while maintaining tax
revenues to the Town, County; and State.
• Preservation of the environmental, cultural, and aquatic resources of the Town and
County.
In order for the Town to maintain adequate cash flow, the renourishment of the entire
oceanfront is being completed in separate projects to ensure manageable budgets. This
2019/2020 Renoushishment Project is the first of three planned over the next three years (2019,
2020, and 2021). With the passage of Hurricane Matthew (October 2016) and Hurricane Florence
(September 2018) several funding reimbursements from both the Federal Emergency
Management Agency (FEMA) and the North Carolina Department of Environmental Quality
(NCDEQ) have been received or are expected to be received and used to mitigate for the
extensive erosion experienced from these hurricanes. An upcoming project planned for the
winter of 2020/2021 will be constructed using Post -Florence reimbursements. The final project
planned for winter 2021/2022 will be considered the initial project for the Town's Master Beach
Renourishment Plan. As a result of recent hurricane activity and lack of adequate beach
management, there is effectively no protective dune throughout most of the oceanfront.
Therefore, the first two planned renourishment projects will focus on building a dune to
withstand a 25-year return period storm event across the island. The design also includes a
support pad with a 1V:20H slope which will move MHW seaward on average 80 feet. This is the
Town's immediate need to provide protection to vulnerable infrastructure from the increasingly
active hurricane seasons. The third project planned for winter 2021, will focus on replacing any
dune volume lost in the interim as well as provide additional storm protection in the form of a
recreational berm in front of the dune across the island.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
4

2.0 DECRIPTION OF THE PROPOSED ACTION
2.1 Project Description
The proposed project consists of excavating up to 1,100,000 cy (this includes assumed 30%
dredge losses) of beach -quality sediment from Jay Bird Shoals, a borrow area situated a distance
of approximately one mile offshore of the Oak Island/Caswell Beach shoreline (Figure 2-1). As
mentioned previously this will be the first major renourishment project to occur in this area since
2001, the most recent renourishment in this area was 120,000 cy of material for emergency
placement in 2017/2018. Portions of Jay Bird Shoals have been included in previous
renourishment events for the Village of Bald Head Island (Figure 2-2). The closest sail distance
from the borrow area to the placement area is about three miles and the farthest sail distance
from the borrow area to the placement area is about eight miles. The renourishment area will
cover approximately 21,000 ft along Oak Island (Figure 2-3 through Figure 2-16). The complete
set of permit drawings are available in Appendix A.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
5

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Figure 2-2. Oak Island and Bald Head Jay Bird Shoals Borrow Areas
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
VA
Moffatt & Nichol
September 2019

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2019/2020 Oak Island Renourishment Project
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2U19/2U2UOak Island RenouriohmentProject
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NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
19
® FOR PERMITTING
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Moffatt & Nichol
September 2019

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NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
20
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September 2019

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Figure 2-16. West End of Renourishment Plan
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
21
FOR PERMITTING
Issueo_mig-oa-iE C-1114
EufioE
Moffatt & Nichol
September 2019

Using vibracore data collected in 2019 (1,000 ft spacing), three different zones and cut depths
within the Jay Bird Shoals borrow area have been identified. Since this is an ebb shoal
environment, these three varying cut depths are intended to maintain the integrity of the shoal
and minimize the effect on the nearshore wave environment. Wave modeling was performed to
quantify any potential effects along the Bald Head Island, Fort Caswell, Caswell Beach, and Oak
Island oceanfront (see Section 0). An area of approximately 304 acres within the outer edge of
Jay Bird Shoals has been identified to meet the renourishment requirement of 1,100,000 cy
(Figure 2-17). Typical borrow area cross sections are shown in Figure 2-18. Detailed sediment
characteristics and vibracore logs for the borrow area are provided in Appendix B. Material
placed on the beach will be consistent with NCDCM sediment compatibility standards and will be
visually monitored for sediment quality on a daily basis (via visual inspection) and weekly basis
(via sediment analysis).
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
22

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Figure 2-17. Jay Bird Shoals Dredging Plan
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
23
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September 2019

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NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
24
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Moffatt & Nichol
September 2019

Sediment will be spread via land -based equipment and shaped into a dune starting at the existing
stable vegetation line. The beach fill will affect approximately 193 acres of beach and inshore
area. The main fill portions of the project will contain approximately 15 — 65 (average = 37) cubic
yards per linear foot (cy/ft) of material. The renourishment template has a dune crest elevation
that varies between 13.5 ft and 14.5 ft NAVD88, the dune crest width is 6 ft, with front and back
slopes of the dune being 1V:5H. The dune will break at elevation 7 ft NAVD88 and then continue
out on a 1V:20H slope until it ties into the existing profile somewhere between elevation -1.0 ft
and -10.0 ft NAVD88. This foreshore slope was chosen to best replicate the natural slope of the
beach in efforts to mitigate significant profile equilibration directly after placement; however,
mild equilibration of the profile is still expected. To quantify the extent of equilibration, the
placement template at five representative locations within the placement area were chosen and
run in SBEACH. The output profile from the 2-yr storm was used as an assumption of the resulting
equilibrated construction template and are shown in Figure 2-19 through Figure 2-23. Material
placed in the dune and berm will be transported to the offshore bar. Mild equilibration of the
dune profile is expected; however, this will act as a sand source for the berm over time. The
equilibrated template will maintain a similar recreational beach width when compared to the
2016 (Pre -Matthew) conditions when a dune was present within the project area.
330+00 Construction Template: SBEACH Equilibration
18
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Pre -Construction Profile Structure Location
Figure 2-19. Station 330+00 Equilibrated Construction Template
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
25

370+00 Construction Template: SBEACH Equilibration
18
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Figure 2-20. Station 370+00 Equilibrated Construction Template
410+00 Construction Template: SBEACH Equilibration
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Figure 2-21. Station 410+00 Equilibrated Construction Template
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
26

450+00 Construction Template: SBEACH Equilibration
18
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Figure 2-22. Station 450+00 Equilibrated Construction Template
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300 400 500 600 700 800
Distance from Baseline (ft)
Equilibrated Construction Template
Structure Location
Figure 2-23. Station 480+00 Equilibrated Construction Template
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
27

This dune has been designed to withstand a 25-year return period storm event. This
renourishment template design is shown in Figure 2-24. Taper sections which are approximately
500 ft long will tie the main fill into the natural shoreline at the ends of each reach. The dune
will be planted with summer grasses with plants being installed on 18" centers. A summary of
the renourishment placement and fill is shown in Table 1.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
W

E6NiTING OCCNPS ON
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Figure 2-24. Typical Renourishment Template Cross Sections
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
29
R
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FOR PERMITTING
ISSUED. 201&0&15 C-302
Ea�go
Moffatt & Nichol
September 2019

Table 1. Preliminary length and renourishment fill volume
Approximate
Average Unit
Reach
Renourishment
'Reach
Project
Geographic
Fill Volume
Volume
Reach
Length (ft)
Station
Location
(cy/ft)
(cy)
Oak Island East
300+00 to
SE 63rd St to 10tn
21,000
37.0
846,000
and Central
500+00
Place W
'Reach length includes 500-ft taper section at the beginning and end of reach.
2.2 Methods of Construction
The proposed project would involve use of either a hopper dredge or a cutter suction (hydraulic)
dredge to excavate sand from Jay Bird Shoals borrow area.
Hopper dredges are self-propelled vessels that employ trailing suction draghead(s) to remove
sediment from the seafloor. The draghead is equipped with various types of steel cutting teeth
or blades and/or high-pressure water nozzles that dislodge thin layers (approximately one to
three feet deep) of sediment from the seafloor. A mixture of loose sediment and water is
pumped through a suction pipe into a hopper onboard the dredge. Sediment settles in the
hopper and excess water is discharged via an overflow system (i.e., scuppers). Once fully loaded,
the hopper dredge would travel from the borrow area to a nearshore pump -out station along the
target beach.
As specifically described by Hales (1995) the proposed methodology includes removing dredged
material from the hopper dredge, where the dredge moors to a nearshore pump -out station
which is typically an anchored floating structure, buoy, or multiple buoy berths. The nearshore
pump -out station will be situated in 25' to 35' of water and an underwater pipeline will extend
from the pump -out station to shore. A hose is connected from the pump -out station to the
hopper -dredge discharge manifold. The dredge then mixes the dredged material with water to
form a slurry and pumps the slurry from its discharge manifold through the floating hose to the
anchored floating pump -out station and on through the underwater pipeline toward shore where
it would be pumped onto the recipient beach (Hales 1995). Once empty, the dredge would then
return to the borrow area and the cycle of dredging and discharging would be repeated.
Equipment refueling would occur as needed by fuel barge or at the Port of Wilmington. The
position of the nearshore pump -out station and underwater discharge pipeline would be
relocated as necessary as construction progresses along the beach.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
30

Cutter suction dredges are stationary dredges that are moored at the borrow site by either spuds
or a series of anchors and wires. The equipment employs the use of a rotating cutterhead that
loosens the material from the sea floor. Just behind or within the cone of the cutterhead is a
suction pipe that gathers the loosened material from the sea floor in a material and water mixture
called a slurry. The cutter suction dredge (CSD) is connected to a pipeline that stretches from the
borrow area to the final placement location via a series of floating and submerged pipelines.
Generally, a CSD will have approximately 1,500 feet of floating hose/pipeline directly connected
to the stern of the dredge. This floating pipeline allow the dredge to move throughout the
borrow area to dredge/gather the material. This floating pipeline is connected to a submerged
pipeline that is laid along the sea floor from the borrow area to the recipient beach. The
submerged pipeline is connected to land -based pipelines that helps to distribute the material
throughout the beach placement area. Additional subline would be added in the borrow area
should the 1,500 feet of floating line not allow the CSD to reach all permitted dredging areas.
To collect the material the CSD swings the bow of the dredge (cutterhead) back and forth within
the borrow site in an arc like pattern moving the dredge forward a few feet with each swing of
the dredge. The cutterhead is engaged/buried within the seafloor to a depth of approximately
two to eight feet (depending on the allowable cut depth) while swinging back and forth. The
material that is loosened becomes fluidized and is pulled into the suction pipe in a slurry and is
pumped directly to the recipient beach through the series of pipes described above.
A couple of primary differences between the hopper dredge and the CSD is the hopper dredge
removes the material in thin layer passes and may take multiple passes in order to reach the
desired depth; the CSD will take all available material to the desired depth in one pass and
generally does not cover an area twice. Also, a hopper dredge needs deeper water to operate
within the borrow area because material loads into a hopper on the vessel, for transport, which
dramatically increases their draft during the loading cycle. Since the CSD is directly pumping the
material onshore the draft of the vessel does not change and therefore can operate in much
shallower waters.
Placement and grading activities on the beach would involve the use of bulldozers to redistribute
and grade the beach fill material to the proposed beach profile. Land -based equipment will be
brought to the site over public roads and will enter the beach at existing permanent beach
accesses and can be stored at staging areas shown on Figure 2-25. Existing vegetation on the
beach will be avoided and preserved; however, any alteration of vegetation necessary for
equipment access will be repaired to pre -project conditions. Daily equipment staging will be on
the constructed beach seaward of the dune line. Construction contracts will provide for proper
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
31

storage and disposal of oils, chemicals, and hydraulic fluids etc. necessary for operation in
accordance with state and federal regulations.
Work will progress in sections within the borrow area and along the beach. Fill placement along
the beach will typically progress at a rate of 400-700 linear feet per day. Construction activities
will involve movement of heavy equipment and pipe along approximately 1 mile reaches over a
period of 1-2 weeks. Once a section is complete, piping and heavy equipment will be shifted to
a new section and the process repeated. As soon as practicable, sections will be graded and
dressed to final slopes. Other than at temporary equipment staging areas, residents and visitors
along the project area will not experience significant disruption to recreational activities except
within the immediate construction area. Existing public access to the beach will remain open at
all times during construction. Offshore pump -out stations and appurtenances would not affect
commercial or recreational boating.
The proposed project involves dredging and placement of approximately 1,100,000 cy of beach -
quality sand. Based on other project experiences, one hopper dredge can excavate and place on
the order of 10,000 — 15,000 cy in a 24-hour period. Dredging and grading would occur around
the clock, thus requiring nighttime lighting on the beach and onboard the dredge. All beach fill
construction activities would take place within the 16 November through 30 April environmental
window. It is anticipated the proposed construction will be accomplished in approximately three
months, unless multiple dredges are deployed on the project which would shorten the
construction period.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
32

Figure 2-25.Staging Areas
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
33
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September 2019

2.3 Sediment Compatibility
2.3.1 Native Beach Sediment
Sediments on the native beach were sampled by Athena in 2019. This established a native grain
size distribution for purposes of compatibility analyses. The native sediment distribution for Oak
Island was defined based on the percent gravel, granular, sand, fine-grained, and calcium
carbonate present in samples taken from 13 locations along a specific transect as specified in
North Carolina Administrative Code 15A NCAC 07H.0312 (1). These 13 samples were then
averaged to obtain a composite average for that transect. Eleven (11) transects were sampled
along the shoreline of Oak Island (Figure 2-26). The composite average for each of the 11
transects were then averaged to obtain a global mean for the native beach. As mentioned above,
this is the first of three projects planned over the next three years (2019-2022) to renourish the
entire oceanfront. The composite average from all eleven transects will be used to classify native
material as opposed to only using the composite average for the transects that fall within the
project area. This establishes consistent standards for native grain size for the future projects. A
summary of the distribution and statistics for the native sediment is provided in Table 2. The
table also demonstrates the acceptable grain size criteria for beach placement in accordance with
15A NCAC 07H.0312 (3). The native material is characterized as fine-grained sand under the
American Society for Testing and Materials (ASTM) Unified Soil Classification System with a mean
grain size of 0.27 millimeter (mm). The native beach is medium -grained sand that is coarse
skewed and moderately sorted (Table 3).
ll n
Legend
— Nnva Sample Lo lnns
—Tl ftw lLgnbans
2.500 S.OUO t0.000 _
Feet —
Figure 2-26. Native Sediment Sample Transects
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
34

Table 2. Native Beach Characteristics and NCAC Rule Parameters
Characteristic
2019 Native
Global Mean
NCAC
Requirements
NCAC Maximum
Gravel (>#4)
Reported: 0.45%
native + 5%
<_ 6%
Granular (>#10 & <#4)
Reported: 0.71%
native + 10%
<_ 11%
Sand (>#230 & <#10)
Reported: 96.96%
-
-
Fines (<#230)
Reported: 1.88%
native +5%
<_ 7%
Calcium Carbonate
Reported: 9.72%
native + 15%
<_ 25%
Table 3. Native beach sediment statistics
Sediment
Compatibility
2019 Native
Global Mean
Median (mm)
0.26
Median ((�)
1.97
Mean (mm)
0.27
Mean ((�)
1.90
Standard
Deviation (o4))
0.81
Moffatt and Nichol conducted a field investigation on May 14, 2019 to estimate the total number
of shell and rock material greater than or equal to three inches in diameter, observable on the
surface of the beach between mean low water and the frontal dune toe, in a 50,000 square foot
area based on requirements of 15A NCAC 07H.0312. Investigations were performed in three
locations across Oak Island shown in Figure 2-27. The three locations were chosen as they have
experienced various levels of renourishment activities, an average from the three areas will be
calculated to represent the entire oceanfront. Area 1 was located between Stations 650+00 and
670+00. Area 2 was located between Stations 490+00 and 500+00. Area 3 was located between
Stations 210+00 and 230+00. Area 1 was nourished two months prior to the investigation, Area
2 had not been nourished since 2001, and Area 3 had received nourishment in the summer of
2018. Results of the investigation found 165 pieces in Area 1, 44 pieces in Area 2, and 87 pieces
in Area 3 of shell material greater than or equal to three inches in diameter. It was observed at
the time of the investigation that a recent dune pushing effort had taken place within Area 2
which probably influenced the low number of clasts surveyed assuming that the characteristic
shell material was pushed up into the dune and not counted. The average clast count of shell
and rock material greater than or equal to three inches in diameter of the three areas surveyed
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
35

is 99 pieces. As mentioned previously, this is the first of three projects planned over the next
three years which will renourish the entire oceanfront, the average from the three areas
surveyed will be used to determine the clast count as opposed to only using the area surveyed
that falls within the project area, especially since the Area 2 clast count was low due to an recent
dune pushing effort. This establishes consistent clast count standards for future projects to use.
Figure 2-27. Clast Survey Areas
2.3.2 Proposed Borrow Area Sediment
Vibracores in the Jay Bird Shoals borrow area were obtained by AVS in February and March of
2019. Figure 2-28 gives the location of vibracores and the bathymetry of the proposed borrow
area within Jay Bird Shoals. Using a multibeam bathymetric survey collected by Geodynamics in
2019, volume calculations indicate 2.95 million cubic yards (Mcy) of material exists in the three
(3) zones within the Jay Bird Shoals borrow area. While 846,000 cy is the expected template
placement volume, the anticipated dredge volume could reach 1,100,000 cy due to losses
typically incurred between what is dredged and what is placed (up to 30%).
When Geodynamics collected the multibeam survey in of 2019, magnetometer data was also
collected. A magnetometer anomaly in the form of a line running northeast to southwest across
the borrow area was identified. The anomaly did not appear on the sidescan or subbottom
surveys meaning the resolution was too fine to capture. The anomaly does not present itself as
a cultural resource, it is likely a cable or pipe. At this point a minimum 50 ft buffer on both sides
of the anomaly is being proposed to avoid it (Figure 2-28).
The borrow area was divided into three (3) zones as beach compatible material exists down to
varying elevations across the shoal. The dredge elevation within these zones was decreased
moving onshore over the shoal to replicate the natural contours of the shoal system. Zone 1
contains beach compatible material down to an elevation between -32 ft and -40.5 ft NAVD88.
The design elevation within this zone is set to -26 ft NAVD88. Zone 2 contains beach compatible
material down to an elevation between -39.5 ft and -41.5 ft NAVD88. The design elevation within
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
36

this zone is set to -31 ft NAVD88. Zone 3 contains beach compatible material down to an
elevation between -33 ft and -38 ft NAVD88. The set dredge elevation within this zone is set to -
27 ft NAVD88. The average cut depth across Zone 1 and Zone 2 is 5.8 ft, and Zone 3 is 6.9 ft.
Since this is a shoal environment, these shallower cut depths are intended to keep the integrity
of the shoal intact by not allowing waves to break closer to shore and cause unintended effects
on the nearshore environment. The sediment characteristics and statistics are presented in
Table 4 and Table 5. As noted in the tables the sediment characteristics and statistics presented
consider a composite average down to the design elevation for each zone.
Appendix B provides a summary table of sediment descriptions including; mean grain size,
percent gravel, percent granular, percent fines (<#230), percent carbonate, and Munsell color.
The composite averages shown in Appendix B will be different than the composite averages
shown in Tables 4 and 5. Appendix B shows the composite average for the entire vibracore
sample, while Tables 4 and 5 show the composite average for the vibracore down to the design
elevation for each zone. The borrow area vibracores meet all the grain size criteria for beach
placement as established in 15A NCAC 07H.0312 (Table 6). The typical sediment type in Jay Bird
Shoals is medium -grained sand (mean size = 0.33 mm) that is coarse skewed and poorly sorted.
This preliminary comparison shows the proposed borrow area sediments to be similar to the
native material (Table 7).
Although no documented State or Federal criteria for sediment color exist, the United States Fish
and Wildlife Service has recommended that to minimize effects on turtles that the Munsell color
be at least a 5. The Jay Bird Shoals vibracore Munsell colors vary from gray (10YR-5/1, 10YR-6/1)
to light gray (10YR-7/1), some grayish brown (10YR-5/2) to light grayish brown (10YR-6/2). In
Appendix B there are two colors noted for the vibracore samples, one while the sample was still
wet and one after the sample had been exposed to the sun and allowed to dry for a month.
Material placed on the beach will be visually monitored for sediment quality and color on a daily
basis (via visual inspection) and weekly basis (via sediment analysis).
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
37

4000 2286000 2288000 2290000 2292000 2294000
r r
.. • iCG
7
� � 1
13 PA
V � r
9 Chan
................. ..... .........
ril ..... ...........
n
1
n
1 �a,
OJB-19 O
26
7
L �f
Dredge Elevation
Volume Including
Zone
(k NAVD88)
Volume (Cy)
50 ft Buffer (cy)
Zone 1
-26.0
859,851
859,851
Zone 2
-31.0
920,976
908,846
Zone 3
-27.0
1,276,591
1,185,475
Total
3,057,417
2,954,171
�6 2
4
8
2284000 228fi 000 2288000 2290000 2292000 2294000
Legend Elevation (ft. NAVD88)
• Jay Bird Shoals Vfbracores -16 - -14 -24 - -22
Mag Anomaly -18 - -16 -26 - -24
50ft Mag Buffer -20 - -18 Ilia. -28 - -26
Jay Bird Shoals Borrow Area -22 - _20 = -29 51 - -28
r
• `,� ice; N
r y, 0 750 1,500 3,000
Feet
Figure 2-28. Jay Bird Shoals Borrow Area
0
NCDCM Major Permit Application Moffatt & Nichol
2019/2020 Oak Island Renourishment Project September 2019
38

Table 4. Sediment characteristics of material proposed for placement on Oak Island
Sediment
Zone 1 Dredge Elevation -26 ft NAVD88
Zone 2 Dredge Elevation -31 ft NAVD88
Zone 3 Dredge Elevation -27 ft NAVD88
Compatibility
JB-20
JB-21
JB-22
JB-23
JB-01
JB-06
JB-17
JB-18
JB-07
JB-08
JB-11A
JB-12
JB-13
Gravel
2.64%
0.81%
1.56%
0.13%
2.99%
1.06%
0.70%
1.85%
2.68%
0.83%
3.30%
0.92%
3.06%
Granular
5.78%
1.71%
3.03%
0.70%
4.93%
3.06%
2.63%
8.51%
6.01%
3.24%
6.25%
2.68%
4.87%
Sand
85.19%
94.56%
90.12%
96.90%
86.20%
89.35%
91.61%
85.04%
85.33%
91.91%
85.63%
92.25%
87.11%
Fines
6.39%
2.92%
5.29%
2.27%
5.89%
6.53%
5.06%
4.61%
5.98%
4.01%
4.82%
4.15%
4.96%
Carbonate
18.20%
19.30%
12.07%
7.85%
8.45%
13.37%
12.23%
21.20%
9.72%
10.03%
18.50%
7.79%
15.46%
Median (mm)
0.23
0.29
0.25
0.22
0.29
0.23
0.25
0.26
0.24
0.28
0.24
0.21
0.28
Mean (mm)
0.34
0.31
0.32
0.25
0.39
0.30
0.30
0.38
0.36
0.33
0.35
0.28
0.39
Note: characteristics represent the composite average down to specified zone dredge elevation.
Table 5. Sediment statistics of material proposed for placement on Oak Island
Sediment
Zone 1 Dredge Elevation -26 ft NAVD88
Zone 2 Dredge Elevation -31 ft NAVD88
Zone 3 Dredge Elevation -27 ft NAVD88
Compatibility
JB-20
JB-21
JB-22
JB-23
JB-01
JB-06
JB-17
JB-18
JB-07
JB-08
JB-11A
JB-12
JB-13
Median (mm)
0.23
0.29
0.25
0.22
0.29
0.23
0.25
0.26
0.24
0.28
0.24
0.21
0.28
Median (4))
2.15
1.81
1.99
2.16
1.81
2.14
2.00
1.92
2.04
1.84
2.04
2.24
1.83
Mean (mm)
0.34
0.31
1 0.32
0.25
0.39
0.30
1 0.30
0.38
0.36
1 0.33
0.35
0.28
0.39
Mean (co)
1.56
1.69
1.66
1.99
1.34
1.75
1.72
1.40
1.47
1.58
1.52
1.84
1.36
Standard
Deviation (off)
1.75
1.14
1.38
0.90
1.60
1.42
1.11
1.61
1.75
1.36
1.68
1.37
1.65
Note: statistics represent the composite average down to specified zone dredge elevation.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
39
Moffatt & Nichol
September 2019

Table 6. Composite sediment characteristics of proposed beach fill compared to native sediment
Sediment
Compatibility
2019 Native
Global Mean
NCAC
Maximum
Jay Bird Shoals
Composite
Gravel
0.45%
<_ 6%
1.64%
Granular
0.71%
<_ 11%
3.88%
Sand
96.96%
-
89.72%
Fines
1.88%
<_ 7%
4.77%
Carbonate
9.72%
<_ 25%
12.53%
Median (mm)
0.26
-
0.25
Mean (mm)
0.27
-
1 0.33
Note: characteristics for Jay Bird Shoals composite average down to specified zone dredge elevations.
Table 7. Composite sediment statistics of proposed beach fill compared to native sediment
Sediment
2019 Native
Jay Bird Shoals
Compatibility
Global Mean
Composite
Median (mm)
0.26
0.25
Median ((�)
1.97
1.99
Mean (mm)
0.27
0.33
Mean ((�)
1.90
1.60
Standard
0.81
1.46
Deviation (6(�)
Note: statistics for Jay Bird Shoals composite average down to specified zone dredge elevations.
2.4 Borrow Area Modeling
In order to investigate the potential effects of dredging material from a Jay Bird Shoals borrow
area identified for the 2019/2020 Renourishment Project on neighboring shorelines of Caswell
Beach and Bald Head Island, numerical models were developed to investigate hydrodynamics,
waves, and sediment transport using Deltares' Delft3D model suite. The hydrodynamics and
wave models were successfully calibrated and validated against available observed water levels,
currents, discharges, and wave data. The sediment transport model was not calibrated due to
lack of measured data to calibrate against.
Tidal current, wave, and sediment transport modeling was performed for the existing and after -
dredge bathymetry scenarios. Two borrow area after -dredge templates were considered.
Template 1 was designed to dredge 2.95 million cubic yards (mcy) and Template 2 was designed
to dredge 2.34 mcy of available beach compatible material. For both after -dredge templates only
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
40

part of the material, 1.034 mcy, will be dredged for the 2019/2020 Renourishment Project. Thus,
within the proposed borrow area, the results from the Delft3D model are believed to be a
conservative overestimate of the potential effects on the tidal current and wave climates.
The tidal current model results indicate that for both after -dredge bathymetry templates effects
on residual tidal currents would be localized and small. This implies there would be no significant
effects on sediment transport processes associated with tidal currents. Figure 2-29 below shows
the effects of the two after -dredge bathymetry templates on residual tidal currents over a spring -
neap tidal cycle.
Figure 2-29. After dredge bathymetry effects on residual tidal currents over a spring neap tidal cycle
The wave transformation model results for the 2004 — 2018 average annual offshore wave
climates show that the two after -dredge bathymetry templates could result in a slight
redistribution of wave energy along the shoreline during moderate to severe storm events.
Sediment transport modeling was also completed, to observe if the changes to wave heights and
wave directions would affect the longshore transport. The sediment transport modeling results
for both after -dredge bathymetry templates show that the wave -induced longshore sediment
transports could be reduced leeward of the borrow area but could potentially increase on
shoreline segments both east and west sides of the borrow area. The net effect of these changes
could result in localized adjustments in shoreline erosion / accretion. Based on the model results
of the longshore sediment transport gradients as presented in Figure 2-30 below, most of the
potential increases in shoreline erosion would be limited to discrete portions of Caswell Beach
(between survey transects 37+00-60+00 and 150+00 — 170+00). Generally, both templates show
results close to existing conditions, with some areas above and below existing. There is no strong
evidence to choose one template over the other given the model results, especially given that
this is not a morphological model. The modeled sediment transport inside the surf zone is greatly
influenced by the imposed model bathymetry. Thus, the model results only represent the
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
41

bathymetric condition constructed based on the available data sources. There will be an
additional 0.6 mcy beach compatible material available in Template 1. For this reason, Template
1 was chosen for the Town of Oak Island's permit application for the 2019/2020 Renourishment
Project. The Town of Oak Island will monitor the Caswell Beach shoreline for nine (9) years post -
project to investigate any potential effects which might require mitigation. The complete borrow
area modeling report is available in Appendix C.
Cx0
`m
40
c
4 70
C
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-40
0
-60
-$0
-1rjn
VV
+ Caswell Beach Transects
—Transport G rad6ent - After -Dredge Template 1
—Transpnrt0,radeint-After-Dredle Template -------- ---------7-_==_-----------------------.
I I
—4 "1 1W Q* a "A R LAD $ %Ilk R * ifi�
1 I 1 ! I I
1 I 1 Y I I
Y I Y !
I I
I
--------
! I I I I I I
I I I
--{--_-_-__-}__-_-_=--r_--=_-__ _ ___ -- _--____-___,
=i-=l-_--= I I Ja'1 Bird Shuiy;row Site
Y I F I I I I I
I I I I I I I
I
! 1
Y I I
Y
F I
I ! I I I I
! I ! 1 I I I I
69200D 693000 694000 695cm 6950W 697000 69B00Q 699000 7000M 7010M
Easting - NC State Plan (m)
Figure 2-30. Wave induced longshore sediment transport gradients along Caswell Beach shoreline
The Town hosted a meeting in August 2019 to discuss the 2019/2020 Renourishment Project with
neighboring stakeholders (Caswell Beach, Fort Caswell, and the Village of Bald Head Island) in
which the preliminary modeling results were discussed. The meeting minutes are provided in
Appendix D.
2.5 Survey Data Collection
15A NCAC 07H.0312 (2) specifies 100 percent multibeam and sidescan sonar coverage of the
borrow area and geophysical imaging of the seafloor on survey grids with line spacing not to
NCDCM Major Permit Application
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Moffatt & Nichol
September 2019
42

exceed 1,000 feet. Geodynamics completed a survey of the Jay Bird Shoals borrow area in June
2019. Data collected included; magnetometer, sidescan sonar, sub -bottom, and multibeam.
Based on the results of the magnetometer data, shown in Figure 2-31 below, the data was
reviewed by Tidewater Atlantic Research, Inc. in order to determine the presence and proper
avoidance of any cultural resources. This is discussed further in Chapter 3.0 Cultural Resources.
The multibeam data collected, also shown in Figure 2-31 below, was used to determine the total
dredge volume for the borrow area. The sidescan sonar mosaic data in Figure 2-31 illustrates the
differences in bottom type throughout Jay Bird Shoals. The sub -bottom data was collected on
grid line spacing of 1,000 ft., see Figure 2-32 below, which shows a 3D diagram illustrating the
sediment horizons, overlaid on the data is the multibeam data where warm colors are shallow
and cool colors are deep.
NCDCM Major Permit Application
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Moffatt & Nichol
September 2019
43

Legend
41_P2_J ay bird_Sft_n avo BB
Value
= High :-14.6785
d= .rn 28.5112
0 500 1,000 2.000 3,000 a 000
FEeI
Legend
Mag Prellm Grid
Norm P, H Gamma Range $
�. nign 6 '3
�cr 6 3
$ ' F ❑ 10�
9.
0 �_tp rOw
•3
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f0
� -7 -101 -I'
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a -10I -1pc-i�
7 J r it
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r3 :� -10 -Job
.10
3'to
3 31 3 -1() 3 3 3 3 3- 3 10 •1p'Ic
3 3 y1)I
3 3 �
3 04e
�3 fAj3 3 111
�-0 .3
3 / 3
�3 e3 3
R1}0 3 .5 3 3 ' 1 ]
• 3 -1d -30
0
.1p'�.0 4'3 '3 -6 3
3 .3
Figure 2-31. Multibeam, Magnetometer, and Sidescan Sonar Survey Coverage
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
44

For reference .. ,• �-�� � ; ...,.. ... :,»
Z-Exageration @ 8.2
Vertical
�`Datum NAVD88
Figure 2-32. Sub -bottom Grid overlaid with Multibeam Survey
3.0 CULTURAL RESOURCES
A series of underwater archaeological studies and surveys have been conducted by the NC
Underwater Archaeological Branch and the US Army Corps of Engineers within the vicinity of the
Cape Fear River inlet (USACE 2010). The NC State Historic Preservation Office was consulted prior
to offshore geotechnical investigations to ensure vibracores collected would not interfere with
any known cultural resources. Tidewater Atlantic Research, Inc. conducted an evaluation of all
magnetic anomalies resulting from the magnetometer survey. Results identified eleven targets
consisting of a tire, several small objects (i.e. traps), and deteriorated buried wire or cable
(Appendix E). In order to avoid dredging and placement of the marine debris during construction,
a minimum 50-foot buffer (on both sides) was developed around the largest debris field (as
shown in Figure 2-28).
4.0 PROPOSED CONSERVATION MEASURES
The following conservation measures will be implemented to avoid or minimize potential impacts
on the affected environment and federally managed species. In addition to those listed below,
the Town is committed to Reasonable Prudent Measures and Terms and Conditions listed under
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
45

sand placement from beach nourishment activities (A) in the US Fish and Wildlife Statewide
Programmatic Biological Opinion for Sand Placement Projects (USFWS 2017).
Construction Schedule
• All sand placement, dredging, and associated construction activities would adhere to a 16
November to 30 April environmental window. Adherence to the environmental window
would minimize potential impacts by avoiding the following periods of critical biological
activity:
o Sand placement and dredging operations would avoid most of the peak
recruitment period [March -September (Hackney et al. 1996)] for surf zone fishes
in NC.
o Dredging operations near the Cape Fear River inlet would avoid peak larval ingress
periods [May -June (Hettler and Chester 1990)] for estuarine -dependent fishes and
invertebrates, thereby reducing rates of larval entrainment during dredging
operations.
o Sand placement operations would avoid peak spring benthic invertebrate
recruitment periods in NC [May through September (Hackney et al. 1996, Diaz
1980, Reilly and Bellis 1978)]; thereby reducing the duration of direct impacts on
intertidal beach benthic infaunal communities that constitute the prey -base for
demersal surf zone fishes.
o Borrow area dredging operations would avoid peak spring benthic invertebrate
recruitment periods in NC [May through September (Hackney et al. 1996, Diaz
1980, Reilly and Bellis 1978)]; thereby reducing the duration of direct impacts on
subtidal soft bottom benthic invertebrate communities that constitute the prey -
base for nearshore demersal fishes.
Construction Methods
• Good Engineering Practices (GEPs) and Best Management Practices (BMPs) would be
applied to all sand placement and dredging activities.
Sand Placement
• Pipelines will be equipped with spreaders to reduce effluent discharge velocities during
sand -slurry placement. Temporary longitudinal sand dikes would be used to contain and
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
46

direct the horizontal flow of the discharged sand -slurry along the beach. These measures
would maximize sediment retention within the designated placement area, thereby
minimizing potential surf zone turbidity effects.
• Sand delivery pipelines will be routinely inspected for pressurized leaks, and any leaks
that are found would be immediately repaired.
Dredging
• A hydrographic survey covering the entire area where the dredge is expected to operate
will be conducted before and after the dredging event.
• Dredging contractors will be required to maintain spill control plans and waste
management plans for all dredging fleet equipment.
Sediment Compatibility
• All material placed on the beach and in associated dune systems would consist of beach
compatible sand that meets NCTechnical Standards for Beach Fill Projects (15A NCAC 07H
.0312). Monitoring of fill material at the pipeline outfall will be conducted throughout
sand placement operations. If dredging operations encounter non -compatible material,
the contractor will cease operations and immediately contact the USACE Wilmington
District Regulatory Branch and the NCDCM to determine the appropriate course of
corrective action. The use of only sand that is compatible with the native beach would
reduce the extent and duration of direct impacts on intertidal beach benthic infaunal
communities and sea turtle nesting.
Post -Construction Monitoring
• The Town of Oak Island will monitor the Caswell Beach shoreline annually for nine (9)
years post -project to investigate any potential effects which might require mitigation.
Figure 4-1 below shows the extents of the monitoring. For comparison the figure also
shows the extents of Bald Head Island's monitoring efforts on Caswell Beach in
association with their borrow area in Jay Bird Shoals.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
47

2255000 2260000 2265000 2270000 2275000 2280000 2285000 2290000 2295000 2300000 2305000
S0tTHP0AT -
rnni0 rnvcae - ..__ - -----' rnNK --'---
-------�assF�RE'
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9omer Slough _ nm .,� dfn 1
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_ a2tt
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'
aso �q
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33 32 nBExtent °
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- _ 2e aklslan p eqq*z� F, s
3a oacl 33 ....31 -__.._ v .,'dam Caswell Monttoririg:Eztent x ox o,4_ fz ,.
e
......
5' Haven 31 ...
sh ,t(s \E�
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_
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2255000 2260000 2265000
�
2270000 2275000 2200000 2285000 2290000 2295000 2300000 2306001)
Legend
Monitoring Transects
;
Bald Head Island Jay Bird Shoals Borrow Area
&
h,.
Oak Island Jay Bird Shoals Borrow Area
V
0 2,500 5,000 10,000 15,000
Feet
Figure 4-1. Post Construction Monitoring of Caswell Beach
5.0 COMPLIANCE WITH BRUNSWICK COUNTY AND CAMA LAND USE PLAN
The proposed project is consistent with the approved CAMA Land Use Plans for Brunswick County
and the Town of Oak Island. The project property is within the planning jurisdiction of Brunswick
County and the Town of Oak Island and is classified "Developed" by the CAMA Land Use Plan.
6.0 COMPLIANCE WITH THE NC ENVIRONMENTAL POLICY ACT
The Division of Coastal Management has determined prior to the application that review of this
project under SEPA is not be required.
The North Carolina Division of Water Resources will be provided a full copy of the permit
application requesting a 401 Water Quality Certification.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
M.

7.0 CONSTRUCTION EASEMENTS
The Town is in the process of obtaining easements for the oceanfront properties within the
project area. The Town has provided a letter of intent to obtain these easements prior to
construction (Appendix F).
8.0 REFERENCES
Diaz, H. 1980. The mole crab Emerita talpoida (say): A case study of changing life history pattern.
Ecological Monographs 50(4):437-456.
Hackney, C.T., M.H. Posey, S.W. Ross, and A.R. Norris. 1996. A review and synthesis of data on
surf zone fishes and invertebrates in the South Atlantic Bight and the potential impacts from
beach renourishment. UNC-Wilmington, Wilmington, NC, 111 pp. Prepared for: Wilmington
District, US Army Corps of Engineers.
Hales, L.Z. 1995. Dredge Plant Equipment and Systems Processes; Summary Report for Technical
Area 3. Technical Report DRP-95-10, United States Army Corps of Engineers
Hettler, W.F. and A.J. Chester. 1990. Temporal distribution of ichthyoplankton near Beaufort
Inlet, North Carolina. Marine Ecology Progress Series 68: 157-168.
Reilly, F.J. Jr., and V.J. Bellis. 1978. A study of the ecological impact of beach nourishment with
dredged materials on the intertidal zone. Institute for Coastal and Marine Resources, Technical
Report No. 4.
Town of Oak Island, 2009. CAMA Land Use Plan Update. Adopted by the Oak Island Town Council
13 April 2010.
U.S. Army Corps of Engineers Wilmington District. 2010. Archaeological and Hardbottom Surveys
of Offshore Borrow Areas with Jay Bird and Frying Pan Shoals, Brunswick Beaches, Brunswick
County, North Carolina. 89 pages.
U.S. Fish and Wildlife Service. 2017. North Carolina Coastal Beach Sand Placement Statewide
Programmatic Biological Opinion. Website: https://www.fws.gov/raleigh/pdfs/spbo.pdf.
VERSAR, 2003. Effects of dredged material beach disposal on surf zone and nearshore fish and
benthic resources on Bald Head Island, Caswell Beach, Oak Island, and Holden Beach, North
Carolina: interim study findings. Prepared for USACE, Wilmington District, NC; -prepared by
Versar Inc, Columbia, MD, Vol I, 54 pp.
NCDCM Major Permit Application
2019/2020 Oak Island Renourishment Project
Moffatt & Nichol
September 2019
49

NORTH CAROLINA
Environmental Quality
October 25, 2019
MEMORANDUM:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRAXTON DAVIS
Director, Division of Coastal
Management
FROM: Heather Coats, Beach & Inlet Management Project Coordinator
NCDEQ - Division of Coastal Management
127 Cardinal Drive Ext., Wilmington, NC 28405
Fax: [phone] (Courier 04-16-33)
heather.coats(cDncdenr.gov
SUBJECT: CAMA / Dredge & Fill Application Review
Applicant: Town of Oak Island
Project Location: 101t' Place West to SE 63rd Street, adjacent to the Atlantic Ocean, Oak Island,
Brunswick County
Proposed Project: Beach nourishment project from 10th Place West to SE 63rd Street
Please indicate below your agency's position or viewpoint on the proposed project and
return this form to Heather Coats at the address above by November, 19 2019. If you
have any questions regarding the proposed project, contact Heather Coats at [phone]
when appropriate, in-depth comments with supporting data is requested.
REPLY: This agency has no objection to the project as proposed.
**Additional comments may be attached**
This agency has no comment on the proposed project.
PRINT NAME
AGENCY
SIGNATURE
DATE
This agency approves of the project only if the recommended changes
are incorporated. See attached.
This agency objects to the project for reasons described in the attached comments.
State ofNorth Carolina I Environmental Quality I Coastal Management
127 Cardinal Drive Ext., Wilmington, NC 28405 919 796 7215

.T�. �
Y
eti4.�.I�
NUB. I o ( IJPd:.
Environmental Quality
October 24, 2019
[e-mail]
2 Pages
Star News
Legal Advertisement Section
Post Office Box 840
Wilmington, North Carolina 28402
Re: Major Public Notice:
• Town of Oak Island / Brunswick County
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRAXTON DAVIS
Director, Division of Coastal Management
Hello Angie: Please publish the attached Notice in the Tuesday, October 29, 2019 issue.
The State Office of Budget & Management requires an original Affidavit of Publication prior to payment for
newspaper advertising.
Please send the original affidavit and invoice for payment to Tanya Pietila at the NC Division of Coastal
Management, 127 Cardinal Drive Extension, Wilmington, NC 28405, 910-796-7226. Paying by credit card to the
attention of Jarimy Springer, (Customer No.70100342).
Please email a copy of the credit card receipt to me.
Thank you for your assistance in this matter. If you should have any questions, please contact me at our
Wilmington office.
,sistance
cc: MHC file
Gregg Bodnar - WiRO
Ronnie Smith - USACE
State of North Carolina I Environmental Quality I Coastal Management
127 Cardinal Drive Ext., Wilmington, NC 28405 90 796 7215

NOTICE OF FILING OF
APPLICATION FOR CAMA MAJOR
DEVELOPMENT PERMIT
The Department of Environmental Quality hereby gives public notice as required by NCGS 113A-
119(b) that the following application was submitted for a development permit in an Area of Environmental
Concern as designated under the CAMA: On October 9, 2019, Town of Oak Island proposed to perform
beach nourishment between 10°i Place West to SE 63rd Street, adjacent to the Atlantic Ocean, Oak Island
in Brunswick County. A copy of the application can be examined or copied at the office of Heather Coats,
N.C. Dept. of Environmental Quality, Division of Coastal Management, 127 Cardinal Drive Ext.,
Wilmington, NC 28405, (910-796-7302) during normal business hours.
Comments mailed to Braxton C. Davis, Director, Division of Coastal Management, 400 Commerce
Avenue, Morehead City, NC 28557-3421, prior to November 19, 2019 will be considered in making the
permit decision. Later comments will be accepted and considered up to the time of permit decision. Project
modification may occur based on review and comment by the public and state and federal agencies. Notice
of the permit decision in these matters will be provided upon written request.

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D
0
00
n � V
mD 31
m N
0 rz