20041216 Ver 1_Other Agency Comments_20090512

DEPARTMENT OF THE ARMY
WILMINGTON DISTRICT, CORPS OF ENGINEERS
69 DARLINGTON AVENUE
WILMINGTON, NORTH CAROLINA 28403-1343
REPLY TO
ATTENTION OF:
May 7, 2009
Regulatory Division
Action ID No. 199901052, Relocation of Mason Inlet.
Mr. Dave Weaver
Assistant County Manager
New Hanover County
414 Chestnut Street
Wilmington, North Carolina 28401
Dear Mr. Weaver:
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MAY 12 2009
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Please reference the Department of the Army (DA) permit issued on December 14, 2001 for
the subject project and your request dated November 11, 2008 to perform maintenance dredging
of Mason Inlet and Mason Creek on Figure Eight Island, New Hanover County, North Carolina.
You have requested the authorization to perform the third maintenance dredging event of the
Mason's Inlet system, and shoreline restoration of the south end of Figure "8" Island.
The referenced DA permit authorized the relocation of Mason Inlet, excavate Mason Creek,
construct a sediment basin, and renourish the southern end of Wrightsville Beach, including
maintenance activities for thirty years. In accordance with special condition (3) of this permit,
your request to any perform maintenance must include a written report indentifying the need for
the maintenance event. Your referenced requests to perform maintenance dredging the Mason
Inlet and the Mason Inlet Monitoring report for the period April 2007 to April 2008 satisfies the
special condition (3) requirements for a written report. In addition, according to information
provided in your narrative sand placed on Figure "8" Island in last years maintenance project
(i.e. the project's second maintenance event) was almost completely washed out from Hurricane
Hannah and the September 20, 2008 nor'easter. Your narrative also states that since the fall of
2007, the throat of Mason's Inlet has migrated approximately 500-feet south from the northern
corridor limits. Thus, you have determined that a third maintenance dredging project is needed.
. We have reviewed your request to perform maintenance dredging in accordance with special
condition (3) of the subject permit as shown on permit sheets 1-6 dated 10/31/08 (copy attached).
Your request includes hydraulic dredging of 57,000 cy from Mason Creek, mechanical dredging
of 96,100 cy from Mason Shoal, and hydraulic dredging of 10,600 cy from the AIWW. The
dredged sand will be disposed onto the ocean beaches of Figure Eight Island to create an
approximate a berm to elevation +6.0 (NGVD) from Station 5+00 to between Station 35+00 and
Station 40+00. All dredging and beach disposal activities will be located within the approved
dredging areas of this permit and as shown in referenced sheets.
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Your request to perform maintenance dredging of Mason Inlet and Mason Creek and
disposal of this dredged material onto Figure Eight Island is hereby approved. You are reminded
that special condition (2) requires that all work be conducted between November 15th and March
30th of any year. In addition, with regard to special condition (12) it is recommended that you
contact the North Carolina Resources Commission prior to any work on the beach to ensure your
project does not impact any listed Federally endangered species.
All other conditions of your Department of the Army permit shall remain in full force and
effect. The expiration date of your permit shall remain December 31, 2031.
Should you have any questions, please contact Mr. Dave Timpy, Wilmington Field Office,
Regulatory Division at [phone].
Sincerely,
Jefferson M. Ryscavage
Colonel, U.S. Army
District Commander
Copies Furnished:
Ms. Cyndi Karoly
Division of Water Quality
N.C. Department of Environment
r and Natural Resources
2321 Crabtree Boulevard, Suite 250
Raleigh, North Carolina 27699-1650
Mr. Doug Huggett
Division of Coastal Management
N.C. Department of Environment
and Natural Resources
400 Commerce Avenue
Morehead City, North Carolina 28557-3421