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HOWELL WOODS WETLAND RESTORATION SITE
STREAM and WETLAND RESTORATION

Johnston County, North Carolina
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EcoScience Corporation has developed and implemented detailed mitigation plans on behalf of the N.C. Ecosystem Enhancement Program (EEP) for the Howell Woods Mitigation Site (Site), an approximately 140-acre tract located at the southern edge of the Neuse River floodplain.  The Site consisted of a
mixture of agricultural areas, fallow fields, and forested communities located at the outer edge of the primary Neuse River floodplain.  The primary on-site hydrologic feature was a dredged and straightened canal, which extended for approximately 5400 linear feet through the Site.  The canal connected two man-made ponds and five secondary ditches.  The canal and secondary ditches are unnamed tributaries associated with a complex network of streams and sloughs, which connect Gar Gut Creek, Mill Creek, and the Neuse River.

Land-use activities in the Site and adjacent tract were limited due to frequent flooding from the Neuse River and poorly drained soils associated with the floodplain.  Due to past and present land use activities, landscape position, and watershed service area, the Site serves as an ideal area for wetland restoration and ecological improvement.

 

HOWELL WOODS WETLAND RESTORATION
During Construction

Immediately following construction
Immediately following construction

 

The goal of this project was to restore a natural hydrological regime, with re-establishment of hydrophytic vegetation that will enhance water quality functions in the vicinity of the Site and provide habitat for area wildlife.  Primary activities included 6300 linear feet of ditch cleaning and backfill; impervious ditch plug installation; construction of 4 forded crossings; 6700 linear feet of backwater slough construction; 4 acres of littoral shelf creation; and pond outfall structural upgrades.  After successful implementation, the Site now includes approximately 140 acres of riverine wetland which has been restored/enhanced within the Neuse River floodplain.

Experience shows that wetland restoration requires specialized knowledge, both from a design and construction perspective.  As a relatively new science, the task of designing and implementing these systems necessitates field evaluations and on-the-spot alterations during the course of construction.

   
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