20120462 Ver 1_401 Application_20120512

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201 ?046 2
Office Use Only
Corps action ID no
DWQ project no
Form Version 13 Dec 10 2008
Page 1 of 13
PCN Form — Version 1 3 December 10 2008 Version
Pre - Construction Notification PCN Form
A Applicant Information
,
1
Processing
la
Type(s) of approval sought from the
Corps
TO Section 404 Permit ❑ Section 10 Permit
1 b
Specify Nationwide Permit (NWP) number 3 or General Permit (GP) number
1 c
Has the NWP or GP number been verified by the Corps?
® Yes
❑ No
1d
Type(s) of approval sought from the DWQ (check all that apply)
® 401 Water Quality Certification — Regular ❑ Non 404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
le
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ 401
Certification
❑ Yes ® No
For the record only for Corps Permit
❑ Yes ® No
1f
Is payment into a mitigation bank or in lieu fee program proposed for mitigation
of impacts? If so attach the acceptance letter from mitigation bank or in lieu
fee program
❑ Yes
® No
1g
Is the project located in any of NC s twenty coastal counties If yes answer 1 h
below
® Yes
❑ No
1h
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
® Yes
❑ No
2
Project Information
2a
Name of project
South betty repair at Masonboro Inlet
2b
County
New Hanover County
2c
Nearest municipality / town
Wrightsville Beach
2d
Subdivision name
NA
2e
NCDOT only T I P or state
project no
NA
3
Owner Information
3a
Name(s) on Recorded Deed
US Government n r;9 111a
3b
Deed Book and Page No
3c
Responsible Party (for LLC if
applicable)
MAY p
3d
Street address
3e
City state zip
& R UAL
3f Telephone no
3g
Fax no
3h
Email address
Page 1 of 13
PCN Form — Version 1 3 December 10 2008 Version

4
Applicant Information (if different from owner)
4a
Applicant is
❑ Agent ® Other specify Federal Government
4b
Name
4c
Business name
(if applicable)
U S Army Corps of Engineers Wilmington District
4d
Street address
69 Darlington Avenue
4e
City state zip
Wlmington NC 28401
4f
Telephone no
910 251 4636
4g
Fax no
910 251 4744
4h
Email address
Jeffrey h nchter @usace army mil
5
Agent/Consultant Information (if applicable)
5a
Name
5b
Business name
(if applicable)
5c
Street address
5d
City state zip
5e
Telephone no
5f
Fax no
5g
Email address
Page 2 of 13
PCN Form — Version 1 3 December 10 2008 Version

B
Project Information and Prior Project History
1
Property Identification
1a
Property identification no (tax PIN or parcel ID)
6800 001 001 002
1 b
Site coordinates (in decimal degrees)
Latitude 34 17885 Longitude 77 808795
(DD DDDDDD) ( DD DDDDDD)
1 c
Property size
12 2 acres
2
Surface Waters
2a
Name of nearest body of water (stream river etc ) to
proposed project
Masonboro Inlet and Atlantic Ocean
2b
Water Quality Classification of nearest receiving water
SA ORW
2c
River basin
Cape Fear River Basin
Page 3 of 13
PCN Form — Version 1 3 December 10 2008 Version

3 Project Description
3a Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application
Masonboro Inlet is located between the southern tip of Wrightsville Beach NC and the northern tip of Masonboro Island
The inlet is part of a Federal navigation project which provides for a 400 ft wide by 14 ft deep channel through the ocean
bar to a 90 ft wide by 12 ft deep channel connecting to the Atlantic Intracoastal Waterway via Banks and Motts channels
The project also provides for a betty on either side of the inlet The north betty was completed in 1966 and the south betty
in 1980 The north betty is 3 650 ft in length including a 1 000 ft long low crested weir section The weir permits sediment
to pass over the structure depositing into the inlet complex where it is available for sand bypassing (and back passing) to
the adjacent beaches The south betty is 3 450 ft long with the first 970 ft consisting of a shore anchorage section which
provides the land tie in of the structure
Shortly after the south betty was completed the inlet was dredged establishing a centrally located navigation channel
between the two structures Since the channel was established in 1980 the channel has moved southward As a
consequence of this shift in the channel the inlet side foundation has been undermined to the point where armor stone
has fallen exposing the concrete sheet pile core in some areas This exposure causes these areas of the structure to be
more inherently unstable and more vulnerable to wave attack It is likely that the inlet side erosion will continue further
worsening the stability of the concrete sheet pile wall
3b List the total estimated acreage of all existing wetlands on the property
No vegetated wetlands on existing property
3c List the total estimated linear feet of all existing streams (intermittent and perennial) on the property
N/A
3d Explain the purpose of the proposed project
The proposed repair /rehabilitation to an area of the existing south betty where erosion has made the structure unstable
and prone to collapse will restore safe navigation conditions through the inlet
Page 4 of 13
PCN Form — Version 1 3 December 10 2008 Version

3e
Describe the overall project in detail including the type of equipment to be used
The repair is proposed to be conducted as a one time event to ensure the betty s integrity and reduce the risk of structural
failure The armor stone to be used for this project will either be stockpiled on Masonboro Island the south end of
Wrightsville Beach or left on barges (acquisiton of stockpile and staging areas will be the responsibilty of the contractor)
The stones will be unloaded from barges using a barge mounted crane and placed directly onto the design template It is
proposed that the barges work mostly from the protected waters on the north side of the south jetty and within the inlet
According to the latest hydrographic survey water depths are adequate so all work will be completed from shallow draft
barges and no work will occur on Masonboro Island proper In the event shoals develop along the repair areas the
Corps will coordinate with Ms Hope Sutton Southern Sites Manager for the NC Coastal Reserve & National Estuarine
Research Reserve and require that all work be conducted in accordance with her recommendations and requirements
The proposed repairs will involve three areas on the south betty the inlet side of the Intermediate Trunk near the elbow
the inlet side of the Main Trunk and both the inlet and seaward side at the Jetty Head
Along the inlet side of the Intermediate Trunk repair of the betty is required for approximately 450 feet where scour
channels have undermined the toe protection causing the toe and armor stone to subside exposing parts of the concrete
sheetpile wall The armor stone and foundation materials have predominantly subsided vertically and horizontal
displacement has appeared to have been minimal An additional layer of 5 to 8 ton armor stone (approximately 990 tons)
is proposed to protect the concrete sheetpile wall extending approxiamately 40 feet from the sheetpile wall The
additional armor stone proposed will be founded on subsided armor stone and therefore no additional bedding stone is
required
On the inlet side of the Main Trunk of the betty currents and wave action have eroded the underlying sand and the armor
stone has subsided exposing the concrete sheetpile wall One 300 foot section of the wall is fully visible Analysis of the
existing betty cross sections show that repair is needed along the Main Trunk for approximatly 800 feet The
recommended repair consists of adding a second layer of armor stone extending approximately 40 feet from the
centerline of the structure on the inlet side and about 10 feet from the centerline on the ocean side The armor stone
would be 14 22 ton the same size as the original design and require about 9 940 tons for the repair
The Jetty Head also requires additional armor stone due to erosion of the underlying sand To bring the Jetty Head back
to design elevation approximately 6 280 tons of 14 to 22 ton armor stone are required from the end of the Main Trunk
through the end of the head a distance of approximately 400 feet The stone would be placed on both the inlet and ocean
side about 65 feet out from the centerline
Total impacts of the three construction areas will be approx 2 3 acres (total length of construction multiplied by 40 to 65
feet into the water) The majority of this area will involve the placement of new stone placed atop existing submerged
stone As much as practicable these impacts will be within the footprint of the original design of the betty
4
Jurisdictional Determinations
4a
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
El Yes ®No El Unknown
project (including all prior phases) in the pasty
Comments
4b
If the Corps made the jurisdictional determination what type
❑ Preliminary ❑ Final
of determination was made?
4c
If yes who delineated the jurisdictional areas?
Agency /Consultant Company
Name (if known)
Other
4d
If yes list the dates of the Corps jurisdictional determinations or State determinations and attach documentation
5
Project History
5a
Have permits or certifications been requested or obtained for
® Yes ❑ No ❑ Unknown
this project (including all prior phases) in the past?
5b
If yes explain in detail according to help file instructions
USACE project constructed in 1980 required EA to complete Similar repairs made on landward end of betty in 2010
Page 5 of 13
PCN Form — Version 1 3 December 10 2008 Version

6 Future Project Plans
6a Is this a phased project9 ❑ Yes ® No
6b If yes explain
Page 6 of 13
PCN Form — Version 1 3 December 10 2008 Version

C Proposed Impacts Inventory
1 Impacts Summary
la Which sections were completed below for your project (check all that apply)
❑ Wetlands ❑ Streams tributaries ❑ Buffers
® Open Waters ❑ Pond Construction
2 Wetland Impacts
If there are wetland impacts proposed on the site then complete this question for each wetland area impacted
2a
2b
2c
2d
2e
2f
Wetland impact
Type of jurisdiction
number —
Type of impact
Type of wetland
Forested
(Corps 404 10
Area of impact
Permanent (P) or
(if known)
DWQ — non 404 other)
(acres)
Temporary T
W1 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W2 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W3 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W4 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W5 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W6 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
2g Total wetland impacts
0
2h Comments
3 Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site then complete this
question for all stream sites impacted
3a
3b
3c
3d
3e
3f
3g
Stream impact
Type of impact
Stream name
Perennial
Type of jurisdiction
Average
Impact
number
(PER) or
(Corps 404 10
stream
length
Permanent (P) or
intermittent
DWQ — non 404
width
(linear
Temporary (T)
(INT)?
other)
(feet)
feet)
S1 ❑ P [IT
❑ PER
❑ Corps
❑ INT
❑ DWQ
S2 ❑ PMT
❑ PER
❑ Corps
❑ INT
❑ DWQ
S3 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
S4 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
S5 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
S6 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
3h Total stream and tributary impacts
0
31 Comments
Page 7 of 13
PCN Form — Version 1 3 December 10 2008 Version

4 Open Water Impacts
If there are proposed impacts to lakes ponds estuaries tributaries sounds the Atlantic Ocean or any other open water of
the U S then individually list all open water impacts below
4a
4b
4c
4d
4e
Open water
Name of waterbody
impact number—
(if applicable)
Type of impact
Waterbody type
Area of impact (acres)
Permanent (P) or
Temporary T
Rock placement along South
01 ®P ❑ T
Atlantic
Jetty at Masonboro Inlet
Ocean
04
Intermediate Trunk
Rock placement along South
02 ®P ❑ T
Atlantic
Jetty at Masonboro Inlet
Ocean
07
Main Trunk
Rock placement along South
03 ®P ❑ T
Atlantic
Jetty at Masonboro Inlet
Ocean
1 2
Jetty Head
04 ❑P ❑T
4f Total open water impacts
23
4g Comments the majority of the area impacted is atop existing submerged stone
5 Pond or Lake Construction
If pond or lake construction proposed then complete the chart below
5a
5b
5c
5d
5e
Wetland Impacts (acres)
Stream Impacts (feet)
Upland
Pond ID
Proposed use or purpose
(acres)
number
of pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
5f Total
0
0
0
0
0
0
0
5g Comments
5h Is a dam high hazard permit required
❑ Yes ❑ No If yes permit ID no
51 Expected pond surface area (acres)
5j Size of pond watershed (acres)
5k Method of construction
Page 8 of 13
PCN Form — Version 1 3 December 10 2008 Version

6 Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer then complete the chart below If yes then individually list all buffer impacts
below If any impacts require mitigation then you MUST fill out Section D of this form
6a
❑ Neuse ❑ Tar Pamlico ❑ Other
Project is in which protected basin?
❑ Catawba ❑ Randleman
6b
6c
6d
6e
6f
6g
Buffer impact
number —
Reason
Buffer
Zone 1 impact
Zone 2 impact
Permanent (P) or
for
Stream name
mitigation
(square feet)
(square feet)
Temporary T
impact
required?
B1 ❑ PEI T
El Yes
❑ No
B2 ❑P ❑T
❑Yes
❑ No
B3 ❑P ❑T
El Yes
❑ No
6h Total buffer impacts
0
0
61 Comments
D Impact Justification and Mitigation
1 Avoidance and Minimization
1a Specifically describe measures taken to avoid or minimize the proposed impacts in designing project
Work will be confined to maximum extent practicable to original footprint of jetty Impact area is minimized to that necessary
to adequately and safely complete the project
lb Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques
If possible all work on the jetty will be done from barges and should remain within the right of way of the jetty Rock used to
stabilize jetty will be clean and contaminant free (no sediment) Storage of the stone prior to placement on the jetty will be in
industrial /construction locations that will minimal impact on the environment
2 Compensatory Mitigation for Impacts to Waters of the U S or Waters of the State
2a Does the project require Compensatory Mitigation for
❑ Yes ® No
impacts to Waters of the U S or Waters of the State?
2b If yes mitigation is required by (check all that apply)
❑ DWQ ❑ Corps
❑ Mitigation bank
2c If yes ? which mitigation option will be used for this
project
❑ Payment to in lieu fee program
❑ Permittee Responsible Mitigation
3 Complete if Using a Mitigation Bank
3a Name of Mitigation Bank
3b Credits Purchased (attach receipt and letter)
Type
Quantity
Page 9 of 13
PCN Form — Version 1 3 December 10 2008 Version

3c Comments
4
Complete if Making a Payment to In lieu Fee Program
4a Approval letter from in lieu fee program is attached
❑ Yes
4b
Stream mitigation requested
linear feet
4c
If using stream mitigation stream temperature
❑ warm ❑ cool ❑cold
4d
Buffer mitigation requested (DWQ only)
square feet
4e
Riparian wetland mitigation requested
acres
4f
Non riparian wetland mitigation requested
acres
4g
Coastal (tidal) wetland mitigation requested
acres
4h
Comments
5
Complete if Using a Permittee Responsible Mitigation Plan
5a
If using a permittee responsible mitigation plan provide a description of the proposed mitigation plan
6
Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation?
❑ Yes ® No
6b
If yes then identify the square feet of impact to each zone of the riparian buffer that requires mitigation Calculate the
amount of mitigation required
Zone
6c
Reason for impact
6d
Total impact
(square feet)
Multiplier
6e
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1 5
6f Total buffer mitigation required
6g
If buffer mitigation is required discuss what type of mitigation is proposed (e g payment to private mitigation bank
permittee responsible riparian buffer restoration payment into an approved in lieu fee fund)
6h
Comments
Page 10 of 13
PCN Form — Version 1 3 December 10 2008 Version

E
Stormwater Management and Diffuse Flow Plan (required by DWQ)
1
Diffuse Flow Plan
la
Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes ® No
within one of the NC Riparian Buffer Protection Rules?
lb
If yes then is a diffuse flow plan included? If no explain why
Yes No
❑
Comments NA
2
Stormwater Management Plan
2a
What is the overall percent imperviousness of this project?
<10 %
2b
Does this project require a Stormwater Management Plan?
❑ Yes ® No
2c
If this project DOES NOT require a Stormwater Management Plan explain why
No upland development <10% impervious area
2d
If this project DOES require a Stormwater Management Plan then provide a brief narrative description of the plan
NA
❑ Certified Local Government
2e
Who will be responsible for the review of the Stormwater Management Plan?
❑ DWQ Stormwater Program
❑ DWQ 401 Unit
3
Certified Local Government Stormwater Review
3a
In which local government s jurisdiction is this project?
NA
❑ Phase II
3b
Which of the following locally implemented stormwater management programs
❑ NSW
❑ USMP
apply (check all that apply)
❑ Water Supply Watershed
❑ Other
3c
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
4
DWQ Stormwater Program Review
❑ Coastal counties
4a
Which of the following state implemented stormwater management programs apply
❑ HQW
❑ ORW
(check all that apply)
❑ Session Law 2006 246
❑ Other
4b
Has the approved Stormwater Management Plan with proof of approval been
attached?
❑ Yes ❑ No
5
DWQ 401 Unit Stormwater Review
5a
Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b
Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 11 of 13
PCN Form — Version 1 3 December 10 2008 Version

F
Supplementary Information
1
Environmental Documentation (DWQ Requirement)
la
Does the project involve an expenditure of public (federal /state /local) funds or the
® Yes
❑ No
use of public (federal /state) land?
lb
If you answered yes to the above does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes
® No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c
If you answered yes to the above has the document review been finalized by the
State Clearing House? (If so attach a copy of the NEPA or SEPA final approval
❑ Yes
❑ No
letter )
Comments NA
2
Violations (DWQ Requirement)
2a
Is the site in violation of DWQ Wetland Rules (15A NCAC 2H 0500) Isolated
Wetland Rules (15A NCAC 2H 1300) DWQ Surface Water or Wetland Standards
❑ Yes
® No
or Riparian Buffer Rules (15A NCAC 2B 0200)?
2b
Is this an after the fact permit application?
❑ Yes
® No
2c
If you answered yes to one or both of the above questions provide an explanation of the violation(s)
NA
3
Cumulative Impacts (DWQ Requirement)
3a
Will this project (based on past and reasonably anticipated future impacts) result in
❑ Yes
® No
additional development which could impact nearby downstream water quality?
3b
If you answered yes to the above submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy If you answered no provide a short narrative description
4
Sewage Disposal (DWQ Requirement)
4a
Clearly detail the ultimate treatment methods and disposition (non discharge or discharge) of wastewater generated from
the proposed project or available capacity of the subject facility
NA
Page 12 of 13
PCN Form — Version 1 3 December 10 2008 Version

5 Endangered Species and Designated Critical Habitat (Corps Requirement)
5a Will this project occur in or near an area with federally protected species or
® Yes ❑ No
habitat?
5b Have you checked with the USFWS concerning Endangered Species Act
® Yes ❑ No
impacts?
5c If yes indicate the USFWS Field Office you have contacted
® Raleigh
❑ Asheville
5d What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
USFWS website agency meetings and communication /correspendence with Howard Hall and Pete Benjamin of the
USFWS
6 Essential Fish Habitat (Corps Requirement)
6a Will this project occur in or near an area designated as essential fish habitat?
® Yes ❑ No
6b What data sources did you use to determine whether your site would impact Essential Fish Habitat?
Fritz Rohde( 252 838 0828) and NMFS
7 Historic or Prehistoric Cultural Resources (Corps Requirement)
7a Will this project occur in or near an area that the state federal or tribal
governments have designated as having historic or cultural preservation
El Yes ®No
status (e g National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b What data sources did you use to determine whether your site would impact historic or archeological resources?
John Mayer USACE archaeologist
8 Flood Zone Designation (Corps Requirement)
8a Will this project occur in a FEMA designated 100 year floodplain?
-T®-yes ❑ No
8b If yes explain how project meets FEMA requirements It will not change the base flood 100 year elevation
8c What source(s) did you use to make the fioodplain determination? Digital flood insurance rate maps on the NCFPM
webpage
Philip M Payonk
Applicant/Agent s Printed Name
Date
Applicant/Agent s Signature
(Agents signature is valid only if an authorization letter from the applicant
is provided
Page 13 of 13
PCN Form — Version 1 3 December 10 2008 Version