151-01 Mod Request 08/2016

Coastal Management
ENVIRONMENTAL QUALITY
MEMORANDUM
TO: Heather Coats
Assistant Major Permits Coordinator
FROM: Robb Mairs by email 21mington
`'Field Representative,
THRU: Debra Wilson
DCM, District Manager, Wilmington
DATE: August 10, 2016
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Seemfory
BRAXTON DAVIS
Director
SUBJECT: Minor modification request, State Permit No. 161-01, New Hanover County,
Mason Inlet Relocation Project (MIRP)
Mr. Layton Bedsole, Shore Protection Coordinator with the New Hanover County
Engineering Department, is requesting a Minor Modification to State Permit No. 151-01 to allow
maintenance excavation within the reaches of the US Army Corps of Engineers (USACE) AIWW
as well as Mason Creek east through the Mason Inlet reach. As noted in the provided USACE
July 8, 2016 notification, the AIWW maintenance dredging is in accordance with Federal Permit
Action ID No. 199901052, Condition 17 of the MIRP. Based on the provided July 2016
bathymetric surveys, approximately 75,000 cubic yards (cy) of material is within the AIWW
crossing and would be hydraulically removed from the shoaled areas within the project
templates areas to final project depth of-12.0 mean low water (MLW) with an over -depth of -2.0
MLW (-14.0 MLW). The material would be pipelined to a privately owned island of Figure "8"
Island HOA, which is also designated as Disposal Area (DA) No. 241 by the USACE. This island
was previously authorized as a disposal location for the Mason Inlet Relocation Project under
State Permit No. 151-01 and was recently rehabilitated in 2014. Figure "8" Island HOA has
previously received a consent agreement through the USACE for the use of the spoil island
located in the USACE easement (Consent No. DACW21-9-11-2010) in previous maintenance
events.
State Permit No. 151-01 was originally issued to New Hanover County on November 28,
2001 and was recently modified on December 11, 2015, which authorized maintenance
excavation within the AIWW crossing, Mason Creek through the Inlet reach within the project
templates. The beneficial reuse of the shoaled sand was located within the 10,000 linear foot
placement area along the southern portion of Figure "8" Island. State Permit No. 151-01 was
last renewed on February 23, 2016 and is due to expire on December 31, 2020 (Please see
attached Project Narrative and attachments).
The agent has included check (ck no. 351764) in the total amount of $100.00 for the
processing the modification request. This office has no objections to the modification of State
Permit No. 151-01.
State of North Carolina I Environmental Quality I Coastal Management
127 Cardinal Drive Ext., Wilmington, NC 28405
910-796-7215

By copy of this memo, NCDCM is requesting that the DCM Fisheries Resource
Specialist, USACE, DWR and NCWRC provide any comment that your agency may have
on the proposed project to Heather Coats of DCM's Wilmington City office within 14 days
of receipt of this memo.
Enclosures
cc:
Doug Huggett
Kyle Dahl, USACE
Chad Coburn, DWR
Gregg Bodnar, DCM
Maria Dunn, NCWRC
State of Nooh Carolina', Emironmenlal Quality I Coastal Management
127 Cardinal Dnve Ext., Wilmington, NC 28405
910-796-7215

NEW HANOVER COUNTY
Engineering Department
230 Government Center Drive • Suite 160
Wilmington, North Carolina 28403
TELEPHONE [phone]
FAX [phone]
August 2, 2016
Heather Coats, Assistant Major Permits Coordinator
North Carolina Division of Coastal Management
127 Cardinal Drive Extension
Wilmington, NC 28405
Via Email Transmittal: heather.coatsnncdenr.eov
Re: Atlantic Intracoastal Waterway (AIWW) and Mason Creek Crossing
Maintenance Dredging
Minor Modification Request, Permit Number 15 1 -01
Expiration Date, 31 December 2020
Mason Inlet Relocation Project (MIRP)
Dear Ms. Coats,
James P. Iannucci, PE, CFM
County Engineer
H. Layton Bedsole Jr., REM
Shore Protection Coordinator
New Hanover County (NHC) is requesting a North Carolina Division of Coastal Management (NCDCM)
minor modification allowing maintenance dredging within reaches of the US Army Corps of Engineers
(USACE) AIWW. Please reference the attached USACE notification package dated 8 July 2016. As
noted in the USACE's package, this notification of AIWW maintenance dredging is in accordance with
Action ID. 1999-01052, Condition 17 of the MIRP's federal authorization.
Attached are July 2016 bathymetric surveys, shoaled volume calculations and AIWW cross sections
within the USACE's reaches of concern. Based on these surveys, an estimated quantity of 75,000 cubic
yards would be removed and managed within the adjacent confined disposal facility (CDF) 241. Also
attached are an aerial of CDF 241 and an excerpted figure from a previous AIWW maintenance event
illustrating CDF 241 and template elements.
NHC anticipates a small hydraulic pipeline dredge plant with material placement within the adjacent
CDF 241. The recently rehabilitated (2014) discharge weir located on the CDF's western wall will ensure
a compliant effluent returning to the AIWW. The NHC planning template matches the USACE's AIWW
template in bottom width (90 feet), depth [12 feet (+2 feet) mean low water] and side slopes of (1:3).
NHC's intention is to complete this maintenance dredging in the upcoming 2016/2017 environmental
window. This requested action minors the AIWW crossing maintenance event executed in early 2014.
RECEIVED
DCM WILMINGTON, NC
AUG 0 2 2016

A preconstruction meeting will be held prior to initiating the maintenance dredging. NHC appreciates the
guidance and support provided by the Division and the consideration of our minor modification request.
The NCDCM minor modification fee of $100.00 will be hand delivered to the Wilmington Regional
Office. If questions arise or additional information is needed, please feel free to contact me at (910) 798-
7104 or at Ibedsole rt,nhc og v.com.
H. Layton Bedsole Jr., R.E.M.
/� -er 0--a�-
NHC Shore Protection Coordinator
Cc via email:
D. Huggett, NCDCM; doug.huggettr2ncdenr.gov
D. Wilson, NCDCM; debra.wilsonnncdenr.gov
R. Mairs, NCDCM; robb.mairsna,ncdenr.eov
B. Keistler, USACE; Robert. W.Keistler(ausace.army.miI
R. Bullock, USACE; Roger.D.Bullock ausace.armymil
J. Manning, USACE; John. E.Manning(ausace.army.miI
D. Beter, USACE; [e-mail]
K. Dahl, USACE; [e-mail]
J. Iannucci, NHC County Engineer; JIannucci&nhc og v.com
RECEIVED
DCM WILMINGTON, NC
AUG 0 2 2016

DEPARTMENT OF THE ARMY
Q,)ATMMONORWILMINGTON DISTRICT, CORPS OF ENGINEERS
69 DARLINGTON AVENUE
WILMINGTON, NORTH CAROLINA 284037343 July 8, 2016
Wilmington Regulatory Field Office
SAW-1999-01052
Re: Maintenance Dredging at Masons Inlet Crossing: Mason's Inlet Relocation Project (MIRP)
Mr. Jim Iannucci, Director
New Hanover County Engineering Department
250 Government Center Drive, Suite 160
Wilmington, North Carolina 28403
Mr. Layton Bedsole, Shore Protection Coordinator
New Hanover County Engineering Department
230 Government Center Drive, Suite 195
Wilmington, North Carolina. 28403
Dear Mr. Iannucci and Mr. Bedsole:
Please reference the terms and conditions of the Department of the Army (DA) Permit issued
on 14 December, 200.1 for the Mason Inlet Relocation Project (MIRP). The purpose of this letter
is to make you aware of accumulated sediments within the Federal Channel at the mouth of Masons
Inlet where it intersects with the Atlantic Intracoastal Waterway (AIWW). U.S. Army Corps of
Engineers Navigation Department's recent hydrographic surveys have revealed increased shoaling
in this area (see attached), which may result in a possible hazard to navigation. As the permittee,
New Hanover County is responsible for maintaining this area in accordance with MIRP permit
condition No. 17:
"If the District Engineer, in his sole discretion, determines that shoaling has occurred within the
AIWW on Tangent 12, Section 3 between monuments T12-8 and T12-41, at any time during the
life of the project and that such section should be dredged in order to maintain safe and efficient
navigation on the AIWW, he will so notify the permittee in writing."
The Inlet Crossing at Section 3 Tangent 12 is federally authorized to -12 feet with the ability to
overdredge by 2 additional feet (to a maximum of -141). The Corps requests that you complete this
requirement within the next November 15 — March 30 work window. Please respond in writing
that you acknowledge this requirement and provide a proposed plan of action and project timeline.
Details should include an approved disposal location for the dredged material.
F2E0EIVED
DCM WILMINGTON, NC
AUG 0 2 2016

-2-
Thank you for your attention to this matter. If you have any questions regarding this letter,
please feel free to contact Mr. Kyle Dahl, at the above letterhead address, by phone at 910-251-
4469, or by email at: [e-mail].
Copies Furnished:
CESAW-RG/Wicker
CESAW-RG-LBeter, Dahl
CESAW-OP-N/Horton
Sincerely,
Dale E. Beter, Chief
Wilmington Regulatory Field Office
RECEIVED
DCM WILMINGTON, NG
AUG 0 2 2016

JED
INGTON, NG
2 2016
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FOR
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RECEIVED
DCM WILMINGTON, NC
40' 200' 0 200' 0
AI If' n 9
LEGEND
— — — —REQUIRED GRADE DREDGE TEMPLATE
ALLOWABLE OVERDEPTH DREDGE TEMPLATE
�: / %'; �; ; %; REQUIRED GRADE
®ALLOWABLE OVERDEPTH
VERTICAL GRAPHIC SCALE
HORIZONTAL GRAPHIC SCALE
REV
REVISIONS
DATE
APP
� R�� DONCTED NERE REPRESENTS THE Rrs M Or cfl NQU. SU Jn WE ON ^"A,wo *R .. Ai1°8°
M MLY NIS MO GMONLY BE LNAN9UMED AS INOAATNG THE GENERA R CONORN EAmNE AT TNT NMA &MMMA4x .1.
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3. HO UVWNA SIO R.1.
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AIWW MAINTENANCE DREDGING PROJECT
TANGENT 12, SECTION 3
MASON CREEK CROSSING
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0
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5
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WEST EAST —
— EXISTING GRADE
0.0' MLW
-
-_
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—200 0 200 400
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WEST FAST —
— EXISTING GRADE.
0.0' MLW
—
=
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— —14' An nw4a1 P nn —
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WEST EAST
— EXISTING GRADE.
0.0' MLW
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— -12' RE 'D GRADE'
—I&' m nwARIa on
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= 3 \ / 3 =
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-14' Al I OWARI P on
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WEST EAST
EXISTING G E
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WEST FAST
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— - —12' RE 'D GRADE - - - '
45'
—400 —200 0 200 400
0
—10
0
—10
—5
0
—10
—20
—400 —200 0 200 400 —400 —200 0 200 400 —400 —200 0 200 400
RECEIVED
LEGEND FOR PERMITTING PURPOSES DCM WILMINGTON, NC
—REQUIRED GRADE DREDGE TEMPLATEALLOWA//B1UG O ^O�e
REQUIREDEGRADEDEPTH DREDGE TEMPLATE NOT FOR CONSTRUCTION 20 0 20' 40' 200' 0 20tl^ L 4000'
ALLOWABLE OVERDEPTH
EV REVISIONS DATE 0 NOTES:
I. THE WfOR1M111N1 DE%CRO NONE REPRESENTS THE RES n 01 CONSIN UL SUR WDE W
OB MY MIS MO ON ONLY BE MNSOERM M INOIMTNO NE GMERK LUNOINON E%ISRNC AT TNi
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—5 5
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—10 —10
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-5 5
0 0
—10 —10
—20 —20
019
VERTICAL GRAPHIC SCALE HORIZONTAL GRAPHIC SCALE
IttUAND BETWEEN.WW58 LWiRifOPHERT.MMRL) AIWW MAINTENANCE DREDGING PROJECT
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Coats, Heather
From: Coburn, Chad
Sent: Thursday, September 08, 2016 2:59 PM
To: Coats, Heather
Subject: RE: Minor Mod Request: MIRP 151-01
No comments
From: Coats, Heather
Sent: Wednesday, September 07, 2016 11:24 AM
To: [e-mail]; Coburn, Chad <[e-mail]>; Dunn, Maria T.
<[e-mail]>
Subject: RE: Minor Mod Request: MIRP 151-01
Hi all,
I'm just checking in on the status of any comments you have on this minor mod request.
Please let me know when possible if you have any questions, concerns, or comments.
Thanks in advance!
Heather
Heather Coats
Assistant Major Permits Coordinator
Division of Coastal Management
North Carolina Department of Environmental Quality
910 796 7302 office
heather. coats (c ncdenr.gov
127 Cardinal Drive Extension
Wilmington, NC 28405
; Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Simpson, Shaun
Sent: Wednesday, August 10, 2016 2:32 PM
To: Huggett, Doug <[e-mail]>; [e-mail]; Coburn, Chad
<[e-mail]>; Bodnar, Gregg <[e-mail]>; Dunn, Maria T. <[e-mail]>
Cc: Mairs, Robb L <[e-mail]>; Coats, Heather <[e-mail]>
Subject: Minor Mod Request: MIRP 151-01

Hello All,
Robb asked that I forward the attached minor modification request from Layton Bedsole for your review and
comments. As indicated in the Memorandum, please send your comments to Heather Coats by August 25, 2016.
Regards,
Shaun
Shaun Simpson
Permit Support & Customer Service
NC Department of Environmental Quality
NC Division of Coastal Management
127 Cardinal Drive Ext.
Wilmington, NC28405
Phone: [phone]
[e-mail]
"NnthinyCgmpares -_
E-mail correspondence to and from this address
may be subject to the North Carolina Public
Records Law and may be disclosed to third parties.

Coats, Heather
From: Bodnar, Gregg
Sent: Friday, August 19, 2016 10:03 AM
To: Coats, Heather
Subject: FW: Minor Mod Request: MIRP 151-01
Attachments: nhc mason creek aiww 8.16.doc; MIRP.pdf
Morning Heather,
I have no issues with the modification so long as the moratorium condition is followed.
Thanks,
Gregg
Gregg Bodnar
Fisheries Resource Specialist
Division of Coastal Management
Department of Environmental Quality
252 808 2808 ext 213 office
Gregg. [e-mail]
400 Commerce Ave
Morehead City, NC 28557
'Nothing Compares _..
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Simpson, Shaun
Sent: Wednesday, August 10, 2016 2:32 PM
To: Huggett, Doug <[e-mail]>; [e-mail]; Coburn, Chad
<[e-mail]>; Bodnar, Gregg <[e-mail]>; Dunn, Maria T. <[e-mail]>
Cc: Mairs, Robb L <[e-mail]>; Coats, Heather <[e-mail]>
Subject: Minor Mod Request: MIRP 151-01
Hello All,
Robb asked that I forward the attached minor modification request from Layton Bedsole for your review and
comments. As indicated in the Memorandum, please send your comments to Heather Coats by August 25, 2016.
Regards,
Shaun

Shaun Simpson
Permit Support & Customer Service
NC Department of Environmental Quality
NC Division of coastal Management
127 Cardinal Drive Ext.
Wilmington, NC28405
Phone: [phone]
Shaun. Sim os on (a7 n cd en r. go v
"NothmgConlf)M s -.
E-mail correspondence to and from this address
may be subject to the North Carolina Public
Records Law and may be disclosed to third parties.