20201093 Ver 2_B-5813 Cover letter_20210426

STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
ROY COOPER J. ERIC BOYETTE
GOVERNOR SECRETARY

Mailing Address:
NC DEPARTMENT OF TRANSPORTATION
ENVIRONMENTAL ANALYSIS UNIT
1598 MAIL SERVICE CENTER
RALEIGH NC 27699-1598
Telephone: [phone]
Customer Service: 1-877-368-4968
Website: www.ncdot.gov
Location:
1000 BIRCH RIDGE DRIVE
RALEIGH NC 27610

April 26, 2021

U.S. Army Corps of Engineers
Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587

ATTN: Mr. Eric Alsmeyer, NCDOT Regulatory Coordinator

Subject: Application for Section 404 Nationwide Permit 14, and 401 Water Quality
Certification for the proposed replacement of Bridge 132 on NC 73 over Dutch Buffalo
Creek in Cabarrus County, NCDOT Division 10.
TIP B-5813. Debit $570 from WBS 45767.1.1

Reference: 1) NCDOT Permit Application for a 404 Permit and 401 Water Quality Certification
dated September 2, 2020
2) NCDWR On Hold Notification dated October 30, 2020
3) NCDWR Returned Application Notification dated March 30, 2021

Dear Sir:

The North Carolina Department of Transportation (NCDOT) proposes to replace Bridge 132 on NC 73 over
Dutch Buffalo Creek in Cabarrus County. The current structure is a 190-foot, 4-span structurally deficient
and functional obsolete structure. The new bridge will be a 208-foot, 2-span bridge approximately 50 feet
upstream of the existing bridge. The existing bridge will maintain traffic until the new structure is complete.

This revised application address four primary concerns that resulted in the return of the previous application.

On November 16, 2020, NCDOT and DWR staff met onsite to review the project. The following concerns
were noted and have been addressed in the attached permit drawings.

Concern 1: A UT draining from the adjacent field is jurisdictional and the impacts should be
accounted for.
The impacts for this stream are now accounted for on the permit drawings. Furthermore, the stream
relocation portion of the project will start further downstream, so the previous permanent impacts to this
system have been minimized to temporary impacts.

Concern 2: An unstable non-jurisdictional drainage from the adjacent field should be stabilized to
prevent sediment discharge into the stream.
Riprap has been added to ensure this system transitions into the relocated channel in a stable manner.

Concern 3: Sewer crossing
A 12” ductile iron gravity sewer line runs parallel to Dutch Buffalo Creek through the project area. A
manhole in the path of the new bridge will need to be relocated, thus requiring the relocation of the line
coming into it.
The stream relocation channel will intersect this line, exposing it at approximately the same elevation as it is
currently, approximately 1-foot above the stream bed.
The relocated sewer line will be secured to driven piles located on each side of the channel. Class II riprap
on the banks will keep the streambanks stable in this area.

Concern 4: Please remove the bridge deck drain nearest the stream on the east side of the bridge.
This deck drain has been removed. The nearest deck drain is now approximately 12 feet from the stream.

By way of the above minimizations, the impacts for this project have changed:

Site
Previous Application Revised Application
Permanent:
Stream
Relocation
Permanent:
Bank
Stabilization
Temp.
Impacts
Permanent:
Stream
Relocation
Permanent:
Bank
Stabilization
Temp.
Impacts
Site 1: Existing
Bridge Removal 0 0 134 0 63 20
Site 2: Stream
Relocation 220 0 8 219 0 117
Totals 220 0 142 219 63 137 282

Please see enclosed Pre-Construction Notification (PCN), NCDMS Acceptance, Stormwater Management
Plan, and Permit Drawings. A copy of this permit application is posted on the NCDOT Permit Website at
http://xfer.services.ncdot.gov/pdea/PermApps/. If you have questions or need additional information, please
contact Jeff Hemphill at [phone].

Sincerely,

Philip S. Harris III, P.E., C.P.M.
Environmental Analysis Unit Head