NC 24 Living Shoreline LOA March 17 2023

March 17, 2023

Ms. Anneliese Westphal
Environmental Senior Specialist
NC Department of Transportation - Division 3
5501 Barbados Blvd.
Castle Hayne, NC 28429-5647

RE: Letter of Authorization, CAMA Major Development Permit Number 78-22, (TIP No. M-0540A)
NC 24 Resiliency and Living Shoreline Project, adjacent to the White Oak River, Onslow County.

Dear Ms. Westphal:

This letter is in response to the N.C. Department of Transportation (NCDOT) request dated March 16, 2023,
including a cover letter and one attached drawing dated as received on March 16, 2023. NCDOT proposes
the following: (1) update the plans for the embankment and low marsh habitat creation areas within an area
of approximately 2,414 square feet (0.05 acres) due to the discovery of previously unknown and unsuitable
fill material; (2) reduce fill within existing Coastal Wetlands; and (3) allow the use of a truck mounted
“Telebelt” (Telescopic Belt Conveyor) as the method of installing marine sand fill on the project. The
authorized changes will not result in any additional permanent impacts to wetlands or waters of the State,
and will potentially reduce impacts to Coastal Wetlands.

NCDOT states that fill will be limited between STA. 20+25 and 22+75 with the goal of maintaining the
existing coastal wetland vegetation to the extent practicable, and recently discovered unsuitable fill will be
removed between STA. 23+00 and 24+50. Additionally, NCDOT states that unsuitable debris will be
removed from the embankment and slope area between STA. 23+75 and 24+75. Approximately 1,559
square feet of Class II riprap will be placed at a 3:1 slope in the area where unsuitable materials are removed
from the existing embankment. Approximately 855 square feet of marine sand fill will be placed at a 10:1
slope with Coastal Wetland plantings in the area where unsuitable materials are removed from the slope area
as authorized in the current landscape plan for the adjacent areas. The request also indicates that NCDOT is
planning to implement the use of a truck mounted “Telebelt” (Telescopic Belt Conveyor) as the method of
adding the authorized sand fill landward of the inner and outer sills. The Telebelt methodology change
would eliminate the need to construct Phase 1 and Phase 2 of the “alternate trestle” design during the sand
fill operation.

Please be advised that through this Letter of Authorization, the Division of Coastal Management conveys
its determination that the revision as described in the NCDOT request dated March 16, 2023 is consistent
with existing State rules and regulations and is in keeping with the original purpose and intent of CAMA
Major Development Permit Number 78-22.

This letter shall be attached to the original of CAMA Major Development Permit Number 78-22, which was
issued on July 22, 2022, as well as the minor modification issued on November 7, 2022, and copies of all
documents shall be readily available on-site when a Division of Coastal Management representative inspects
the project for compliance. All conditions and stipulations of the active permit shall remain in force unless
altered herein. This approval does not eliminate the need to obtain any additional permits, approvals or
authorizations that may be required.

Please contact Stephen Lane at [phone] if you have any questions or concerns.

Sincerely,

Gregg Bodnar
Major Permits Coordinator

cc: Tom Steffens, USACE
Hannah Sprinkle, NCDWR
Travis Wilson, WRC
Maria Dunn, WRC
Jimmy Harrison, DMF
Shannon Jenkins, DMF