20060367 Ver 2_Application_20070417

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STATE OF NORTH CAROLINA
DEPARTZVIEEN'T OF TRANSPORTATION
MICHAEL F. EASLEY
GOVERNOR
North Carolina Division of Water Quality
Transportation Permitting Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
ATTENTION: Mr. Rob Ridings
NCDOT Coordinator
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LYNDO TIPPETT
SECRETARY
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SUBJECT: Riparian Buffer Certification Modification Request for the widening of SR 3015
(Airport Boulevard) from NC 54 to McCrimmon Parkway, in Wake County.
NCDOT Division 5, State Project No. 98051709, T.I.P. No.U-3344 A, WBS Element No.
34934.1.1.
Reference: Buffer Certification; WQC 20060367 issued May 24, 2006.
USACE 404 Nationwide 14 by default, August 3, 2006.
Dear Sir:
The NCDOT proposes to widen Airport Boulevard (SR 3015) from NC 54 to McCrimmon Parkway. The
proposed project will widen the existing two-lane roadway equilaterally to five lanes with curb and gutter
along both sides of the roadway. The improved facility will include a 12-foot wide center turn lane and 2
through lanes in each direction. The proposed improvement will impact two existing stream crossings
and a wetland. The first crossing, Unnamed Tributary #2 (UT2), is a 5' stream section between a 28"x 32"
arched corrugated metal pipe (CMP) and a 48" CMP (Site 1). The second crossing, UT3, is at a 66" CMP
crossing through the roadway embankment (Site 2). This pipe is to be removed and replaced with an 8'
x 8' reinforced concrete box culvert (RCBC). The wetland located at Site 1 will be filled to allow for
placement of a lateral base ditch. Traffic will be maintained on existing road. The total project length is
0.61 miles.
The North Carolina Department of Transportation (NCDOT) proposes to modify the buffer permit for the
above-mentioned project to provide construction access. The purpose of this letter is to request a
modification to the North Carolina Department of Water Quality Buffer Certification. The NCDOT is
asking for an additional 810 ft2 buffer impacts in Zone 1 at Site 2. The revised permit drawings (sheets 5
and 8 of 8) are attached.
Summary of Changes
Backcaround: This project is located in the Neuse River Basin within HUC 03020201. The existing
certification is for 8,412 ft2 of buffer impacts in Zone 1 at Site 2. Additional construction access is needed
to remove pipe and replace with a box culvert at Site 2 in Zone 1. Therefore, an additional 810 ft2 of
buffers will be impacted for access. The total buffer impacts in Zone 1 at Site 2 are 9,222 ft2.
MAILING ADDRESS:
NC DEPARTMENT OF TRANSPORTATION
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS
159$ MAIL SERVICE CENTER
RALEIGH NC 27699-1598
April 11, 2007
TELEPHONE: [phone]
FAX: [phone]
Weasrrs: WWW. NCDOT.ORG
LOCATION:
272$ CAPITOL BOULEVARD
PARKER LINCOLN BUILDING, SUITE 240
RALEIGH NC 27699

MITIGATION
The NCDOT does not plan to mitigate for the buffer impacts due to the impacts being allowable.
According to the Neuse Buffer Rules, buffer impacts resulting from road crossings are allowable if they
impact greater than 40 linear feet but equal to or less than 150 linear feet or one-third acre of riparian
buffer. Impacts at Site 2 are 0.32 acres- allowable.
REGULATORY APPROVALS
Section 401 Certification: The NCDOT requests that the referenced Buffer Certification be modified to
reflect the revisions outlined in this letter.
Section 404 Permit: NCDOT will continue to follow the requirements set forth in the NW 14 permit.
A copy of this permit application will be posted on the NCDOT website at:
http://www.ncdot.org/planning/pe/naturalunit/Permit.html. If you have any questions or need additional
information please call Ms. Deanna Riffey at [phone].
Sincere
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~o/Gregory J. Thorpe, Ph.D.
Environmental Management Director, PDEA
Cc: w/attachment
Mr. John Hennessy, NCDWQ (5 Copies)
Mr. Travis Wilson, NCWRC
Mr. Gary Jordan, USFWS
Dr. David Chang, P.E., Hydraulics
Mr. Mark Staley, Roadside Environmental
Mr. Greg Perfetti, P.E., Structure Design
Mr. J. Wally Bowman , P.E., Division Engineer
Mr. Chris Murray, DEO
w/o attachment
Mr. Jay Bennett, P.E., Roadway Design
Mr. Majed Alghandour, P. E., Programming and TIP
Mr. Art McMillan, P.E., Highway Design
Ms. Jennifer Evans, Project Planning Engineer
File U-3344 A
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X DIVISION OF HIGHWAYS
WAgE COUNTY
PROJECT: 9.8051709 <U-33~~A>
MORRISVILLE - SR 3015 (AIRPORT
BLVD) FROM NC 5~ TO ~~ •~
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