20100782 Ver 1_Application_20120201

us--
STATE OF NORTH CAROLINA
Fie 0 1 7011
DEPARTMENT OF TRANSPORTATION lcmakiiav
BEVERLY EAVES PERDUE
GOVERNOR
January 20 2012
U S Army Corps of Engineers
Regulatory Field Office
151 Patton Avenue Room 208
Asheville NC 28801 5006
ATTN Ms Sarah Hair
NCDOT Coordinator
Dear Madam
EUGENE A CONTI JR
SECRETARY
l0- 0-7 F3 v 2
Subject Request for Section 404 Individual Permit and Section 401 Water
Quality Certification Modification for the widening of NC 49 from East of
NC 73 to East of SR 2630 (Cline Road) in Cabarrus County Federal Aid
Project No NHS - 0049(26) Division 10 TIP No R 2533CC
Reference USACE Individual Permit Action ID SAW 2010 00726 dated June 6 2011
NCDWQ Water Quality Certification No 003847 dated January 19 2011
The purpose of this letter is to request a modification to the United States Army Corps of
Engineers ( USACE) Individual Permit and North Carolina Division of Water Quality
Certification for the above referenced project The requested modification is to rectify
problems that have occurred during the placement of a 1650 mm RCP at Site 7 Currently
there is a considerable elevation difference between the undisturbed portion of the stream
and the pipe inlet There is approximately 2 85 feet of fall occurring within the approximate
26 feet of stream as it enters the pipe NCDOT proposes to rectify this problem by installing
a log sill in the area of the stream before it enters the pipe The log sill will be used to direct
the stream flow (thalweg) toward the center of the channel and to provide grade control The
log sill will be constructed of hardwood tree species with a minimum diameter of 12 inches
The length of each log shall be sufficient to allow proper construction and so they can be
keyed into the banks a minimum of 1 5 meters (approx 5 feet)
The addition of the log sill at Site 7 will cause 26 feet of permanent stream impact due to the
installation of the pipe The area impacted will occur in an area where temporary impacts
MAILING ADDRESS TELEPHONE [phone] LOCATION
NC DEPARTMENT OF TRANSPORTATION FAX [phone]
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS 1020 BIRCH RIDGE DRIVE
1598 MAIL SERVICE CENTER
RALEIGH NC 27699 1598 WEBSITE WWW NCDOT ORG RALEIGH NC 27610 -4328

were to already occur The attached wetland summary sheet reflects the changes in impacts
at this site The design for the placement of the log sills has been discussed and approved by
the USACE and NCDWQ The USACE has determined that no new mitigation would be
required for this work
Thank you for your assistance with this project If you have any questions or need additional
information please contact Mr Jason Dilday atjldilday @ncdot gov or [phone] A
copy of this modification application will also be posted at
http //www ncdot org /planning /pe /naturalunit/Permit html
Sincere
@ Gregory J Thorpe Ph D Manager
Project Development and Environmental Analysis Unit
CC
NCDOT Permit Application Standard Distribution List
2

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