HomeMy WebLinkAboutDCM Written Notice , South Ferrry Channel 2021COASTAL PROTECTION ENGINEERING OF NORTH CAROLINA, INC
4038 MASONBORo Loop ROAD
WILMINGTON, NC 28409
910-399-1905
September 23, 2021
Heather Coats
Beach & Inlet Management Project Coordinator
North Carolina Division of Coastal Management
127 Cardinal Drive
Wilmington, NC28405
Subject: Hatteras Inlet Channel Maintenance Project —Written Notice of Project Initiation
Dear Ms. Coats:
The Division of Coastal Management (DCM) issued a CAMA Major Permit for the proposed Hatteras Inlet
Channel Maintenance Project on December 22, 2016 (#129-16). This permit was subsequently renewed
on January 22, 2020 and has a current expiration date of December 31, 2024. This letterserves as written
notice of project initiation as required in Condition 7 of the permit. Please find attached to this letter
revised permit drawings dated September 23, 2021, which provide the location of the proposed channel
for the upcoming event.
The project includes maintenance dredging within a portion of the Hatteras Inlet Connector Channel,
which runs between the inlet gorge and the ferry channel in proximity to Ocracoke Island. This channel is
locally referred to as the "South Ferry Channel". The attached plan view drawing shows the location of
the proposed channel, the disposal area, and previously mapped submerged aquatic vegetation (SAV)
resources in the vicinity. The channel is proposed to be dredged by a combination of the US Army Corps
of Engineers (USACE) side cast Dredge Merritt and special purpose Dredge Murden. Material dredged
from the channel will be sidecasted to either side of the proposed channel and or placed in the nearshore
disposal location offshore of Ocracoke Island.
The environmental window for dredging opens October 1. The USACE and Dare County have agreed on a
tentative schedule to begin dredging around October 4, 2021. The actual dredging of the channel is
anticipated to last approximately three (3) weeks. We do not anticipate any issues with dredging outside
of the environmental windows established by the permit for the upcoming proposed maintenance event.
At the time of this letter, it is anticipated that the project will be conducted between October 4, 2021 and
October 25, 2021.
As you are aware, the Major CAMA Permit (#129-16), originally issued in December 2016, was modified
in March 2018 to allow for maintenance of a 200 ft. wide channel to a depth of -12 ft. MLW. Based on
budget, dredge availability, and conditional surveys conducted September 21, 2021, the proposed channel
dimensions for this upcoming dredging event are to establish a 150-foot wide channel at elevation -8 ft
MLW along the NE -SW oriented segment of the channel, and 150-foot wide channel at elevation -8 ft.
COASTAL PROTECTION ENGINEERING OF NORTH CAROLINA, INC.
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PROTECTION
ENGINEERING
MLW along the E-W oriented segment of the channel. Based on the conditional survey from September
21, 2021, establishment the proposed channel will require the dredging of approximately 31,600 cy of
material. Please note that these channel dimensions and configurations are what is anticipated, but we
reserve our authorization to increase the width of the channel up to 200 feet and the depth up to -12 ft.
MLW. The proposed channel is shown on the attached drawings, including both plan view and cross -
sectional view.
As required by the permit, we have contacted Don Field with NOAA to determine if any updated imagery
is available for the project area to delineate SAV habitat. As of the date of this letter, we have not received
a response from Mr. Field; however, once we receive a response, we will provide that to your agency via
email. Our last information from February 2021 was that the Albemarle Pamlico National Estuary
Partnership (APNEP) collected new imagery in May/June 2020 and NOAA was awaiting deliverables to be
provided by the contractor. We made the formal request that the imagery and delineation be provided
to us when available.
Regarding contact information during dredge activities, Brennan Dooley of the USACE will be the point of
contact for the USACE dredging operations. Brennan's Phone Number is (910) 251-4916 and his email is
brennan.j.dooley@usace.army.mil. I will be the County's agent and can be contacted via cell phone at
(910) 443-4471.
Please feel free to contact me anytime for further clarification or explanation of the project.
Sincerely,
Ken Willson
Senior Program Manager
Coastal Protection Engineering of North Carolina, Inc.
Office: 910-399-1905
Mobile: 910-443-4471
kwillson@coastalprotectioneng.com
CC: Barton Grover, Dare County
Jonathan Howell, NC DCM
Gregg Bodnar, NC DCM
Robert Pullinger, NC DWR
HATTERAS INLET MAINTENANCE PROJECT
DARE COUNTY. NORTH CAROLINA
PAMLICO SOUND
TTER.4 HA
INLET
OCRACOKE
ISLAND
PROJECT AREA
ATLANTIC OCEAN
N.T.S.
NOT FOR CONSTRUCTION
FOR REGULATORY REVIEW ONLY
0 7500 15000
GRAPHIC SCALE IN FT
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�.' CAPE HATTERAS
PROJECT LOCATION
MOREHEAD CITY
CAPE LOOKOUT
CAPE FEAR
ATLANTIC
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SHEET INDEX
1 COVER SHEET
2 PROJECT OVERVIEW
3 CONNECTOR CHANNEL PLAN VIEW
4 CONNECTOR CHANNEL CROSS SECTIONS
GENERAL NOTES:
1. COORDINATES ARE IN FEET BASED ON NORTH CAROLINA STATE PLANE COORDINATE SYSTEM, NORTH AMERICAN
DATUM 1983, (NAD83)
2. ELEVATIONS ARE REFERENCED TO MLLW. PERMITTED DREDGE DEPTH IS RELATIVE TO THE MLW DATUM BEING
APPROXIMATELY 0.08' ABOVE MLLW PER NOAA PID EX0400.
3. DATE OF AERIAL PHOTOGRAPHY: FEBRURARY 16, 2021, COURTESY OF USACE.
4. SURVEY DATA COLLECTED BY US ARMY CORPS OF ENGINEERS. SEPTEMBER 21, 2021.
5. BATHYMETRIC CONTOURS REPRESENT THE CONDITIONS OF THE CHANNEL ON SEPTEMBER 21, 2021 AND SHOULD
NOT BE RELIED ON FOR NAVIGATION PURPOSES.
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TIDAL DATUM
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MEAN LOW WATER LINE
MEAN HIGH WATER LINE
CROSS SECTION LINE
HATTERAS INLET BORINGS 2003 AND ID
NEARSHORE DISPOSAL AREA
SUBMERGED AQUATIC VEGETATION AND 100 FT. BUFFER
ASBUILT EXISTING CABLE ROUTE (CALDWELL CABLE VENTURES)
EXISTING CABLE ROUTE (UTLITY ELECTRICAL CONSULTANTS, PC)
ASBUILT NEW CABLE ROUTE
TIDAL DATUM REFERENCE BASED ON NOAA TIDE
STATION ID 8654467 EPOCH 1983-2001"
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