HomeMy WebLinkAbout20191209 Ver 2_Restoration Plan.doc_20191122Restoration Plan
PNG Line 204 Relocation
Beaufort/Martin Counties, North Carolina
The proposed project has been designed to avoid and minimize jurisdictional impacts where practicable. As
part of mitigation for unavoidable impacts, the following plan shall be implemented to restore temporarily -
affected wetlands and streams. This plan entails restoration of temporarily -disturbed areas to their original
contours and conditions to the degree practicable upon project completion. Unless otherwise authorized by
the appropriate permits, no fills or spoils of any kind will be permanently placed within wetlands or along the
stream banks. Further, disturbed wetland areas and streambanks will be permanently stabilized using coir
matting (with no plastic or nylon) and native vegetative cover.
Proposed restoration activities will include the removal of placed fill material and restoration of original pre -
disturbance contours. Excavated material shall be returned to the trench to the extent possible, and
remaining excess material relocated and retained on an upland site. Excavated topsoil will be stockpiled
separately, kept viable, and then replaced uniformly over the area of excavation from which it was removed.
The native seed mix identified in Table 1 below will be utilized within temporarily -disturbed streambanks and
riparian buffer areas.
Table 1: Riparian Seed Mix
Agrostis perennans
Autumn bentgrass
15
Andropogon gerardii
Big bluestem
10
Coreopsis lanceolata
Lanceleaf coreopsis
10
Elymus virginicus
Virginia wildrye
20
Juncus effusus
Soft rush
5
Panicum virgatum
Switchgrass
15
Rudbeckia hirta
Blackeyed susan
10
Schizachyrium scoparium
Little bluestem
5
Sorghastrum nutans
Indian grass
5
Tripsacum dactyloides
Eastern gamagrass
5
Riparian Seed Mix is to be applied to all disturbed streambanks and buffer areas. The recommended
application rate: 20 lbs. per acre.
The native seed mix identified in Table 2 below will be utilized within temporarily -disturbed wetlands.
Table 2: Wetland Seed Mix
Bidens aristosa
Showy tickseed
7
Carex vulpinoidea
Fox sedge
12
Dichanthelium clandestinum
Deertongue
8
Elymus virginicus
Virginia wildrye
20
Juncus effusus
Soft rush
4
Panicum dichotomiflorum
Smooth panicgrass
14
Panicum rigidulum
Redtop panicgrass
8
Panicum virgatum
Switchgrass
23
Polygonum pensylvanicum
Pennsylvania smartweed
2
Sparganium americanum
Eastern bur reed
2
Wetland Seed Mix is to be applied to all disturbed wetland areas. In the event of overlap, wetland mix (Table
2) will be used. The recommended application rate: 20 lbs. per acre. To provide quicker cover, the mixes
specified in Tables 1 and 2 should also be augmented with the appropriate cover/companion species, as
identified in Table 3.
Table 3: Cover/Companion Crops
Seca(e cerea(e
Cereal or
Early Spring or
30 Ibs/acre
Grows 3-4' tall, but not a strong a
Winter rye
Fall
com etitor.
Lo(ium perenne
Perennial rye
Early Fall or
20-50%
Shorter rye; lasts about 2 years,
Spring
then dies out.
Uroc(oo ramose
Brown Top
Spring, Summer
20-50%
Good germination; dies off with
Millet
frost; does not tolerate mowing.
Substitutions to the riparian and wetland mixes identified in this restoration plan may be made with prior
approval. Any substitutions shall consist of appropriate native species.
Additional information related to streambank restoration activities is included on the Typical Stream and
Wetland Crossing Details. Riparian and wetland seed mixes are available at:
Mellow Marsh Farm
1312 Woody Store
Road Siler City, N.C. 27344
919.742.1200
www.mellowmarshfarm.com