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HomeMy WebLinkAbout20181430 Ver 1_WRC Comments_201811289 North Carolina Wildlife Resources Commission 0 Gordon Myers, Executive Director November 28, 2018 Ms. Amanda Fuemmeler U.S. Army Corps of Engineers, Regulatory Branch 151 Patton Avenue, Room 208 Asheville, North Carolina 28801-5006 SUBJECT: Margaret Pierce Stream Bank Stabilization South Toe River, Yancey County Dear Ms. Fuemmeler: Biologists with the North Carolina Wildlife Resources Commission (NCWRC) reviewed an application to stabilize 74 feet of the South Toe River in Yancey County. I visited the site on November 20, 2018. Our comments on this application are offered for your consideration under provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et. seq.) and Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d). The application proposes to rebuild a rock wall on the left bank of the river. This wall is isolated from the river at normal flows. An excavator would operate from a dry cobble point bar adjacent to the bank. The excavator would cross approximately 40 fe of the wetted channel within a backwater pool in order to access the point bar, and a coir log would be placed downstream of this crossing area. Stream banks would be stabilized with a rock wall and the disturbed areas planted with native herbaceous vegetation immediately after grading work is complete. The South Toe River supports wild populations of Brown Trout and Rainbow Trout; however, as this project involves stabilizing a bank adjacent to a home and minimal in -channel disturbance, a moratorium will not be required. This portion of the South Toe River is part of the South Toe River Aquatic Habitat, a natural area designated by the NC Natural Heritage Program and rated Exceptional due to the richness of rare species it contains. In the vicinity of the project, the South Toe River supports one of the best breeding populations of the Eastern Hellbender (Cryptobranchus alleganiensis, US Federal Species of Concern, NC Special Concern) in the state. Further downstream, the South Toe contains a diversity of rare and listed species, including the federally endangered Appalachian Elktoe. Wild trout and these rare species are especially sensitive to sediment, and special care should be taken to minimize sediment loss from the project. Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919) 707-0220 • Fax: (919) 707-0028 Margaret Pierce Stabilization Page 2 November 28, 2018 S Toe River, Yancey County We offer the following recommendations to minimize impacts to the aquatic community: 1. Minimize equipment crossing in the wetted channel. 2. Work should be accomplished as quickly as possible and vigilance used in sediment and erosion control during site preparation, construction, and clean up. Disturbed areas should be seeded, mulched and/or matted as soon as possible, preferably at the end of each work day. 3. Any erosion control matting used should be free of plastic or nylon mesh, as this type of mesh frequently entangles wildlife and is slow to degrade, resulting in a hazard that may last for years. 4. Work should be accomplished during low flows. 5. We recommend that native woody vegetation be incorporated into the planting plan. Trees and shrubs can ensure greater bank stability, filter overland pollutants, and provide habitat for birds and other wildlife. Thank you for the opportunity to review and comment on this project. Please contact me at (828) 803-6054 if you have any questions about these comments. Sincerely, Andrea Leslie Mountain Region Coordinator, Habitat Conservation Program ec: John Vilas, McGill Engineers Andrew Moore, NC Division of Water Resources David Goodfred, NCWRC Allen Ratzlaff, US Fish and Wildlife Service