20190827 Ver 1_EPCN Supplemental Information_20190624

1a: Type of approval sought from the Corps:
0 Section 404 Permit
0 Section 10 Permit
Section A
Section C
4a: Describe the existing conditions on the site and the general land use in the vicinity of the project at
the time of this application:
The land in the vicinity of this project is either:
1) Asphalt traffic lanes utilized for ferry traffic
2) Land behind the bulkhead of the ferry basin
3) Undisturbed land
4) Eroding shoreline
4c: If yes, please give the DWR Certification number or the Corps Action ID:
SAW-2017-00407
4i: Describe the overall project in detail, including indirect impacts and the type of equipment to be
used:
The contractor will install 1000 feet of new sheet pile to protect the eroding area at the Ferry South
Dock of Ocracoke Island (See attached maps)
In order to begin installing the sheet pile the undisturbed land between the basin and the sound will
need to be graded so that a crane can move along the point. Within the basin, new sheet pile wall will
be installed 2' waterward of the old stabilization and then wrapped around to the north side running
parallel to Hatteras Inlet within the Pamlico Sound. The basin and sound -side seawalls will then be
anchored together with galvanized tie rods and reinforced concrete caps that serve as wales. The sound -
side seawall will extend along the north side of the Ferry Terminal peninsula and partially extend around
the north end of the vehicular stacking lanes. Upon completion of work the point between the seawalls
will be filled with material from the adjacent dredge spoil site and regraded to match the existing dune
elevations.
As depicted in the drawings, the NCDOT Ferry Division would like to install temporary sandbags on the
end of the sheet pile wall until the groin project is completed. The sandbags are needed to prevent any
erosion from occurring from easterly winds. NCDOT proposes to use 3 different sizes of sandbags to fill
in the end of the wall to prevent erosion; 2'x5'x15', 3'x3', and 4'x4' sizes would be utilized. The different
sized sand bags will be used jointly to seal off the end as depicted in the drawings. The approximate
number of sand bags is 40, depending on the depths at the time of placement. The approximate length
at the top of the sandbag wall would be 50' with a width of 15', height of 14' and the bottom tapering

with elevation. The sandbags would be placed in an area located partially within the inlet hazard area
and therefore their placement is pending approval from the CRC.
Equipment: Crane, Tug barge, Bulldozer, any other equipment deemed necessary by the contractor.
Section G
8b: If yes, explain how project meets FEMA requirements:
Project purpose is to stabilize the shoreline and protect the ferry basin by installing a sheet pile wall in
the water. No additional, permanent development is to occur on the land. A SUP has been obtained
from the NPS who owns the land.