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HomeMy WebLinkAboutAppleValleyGolfCourseStreamStabilization_BillsCr_Rutherford_NCWRCComments North Carolina Wildlife Resources Commission Cameron Ingram, Executive Director Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919) 707-0220 • Fax: (919) 707-0028 September 23, 2022 Ms. Brandee Boggs U.S. Army Corps of Engineers, Regulatory Branch 151 Patton Avenue, Room 208 Asheville, North Carolina 28801-5006 SUBJECT: Apple Valley Golf Course Stream Stabilization Bills Creek, Rutherford County Dear Ms. Boggs: Biologists with the North Carolina Wildlife Resources Commission (NCWRC) reviewed an application to stabilize 296 ft of Bills Creek in Rutherford County. 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). Wild trout reproduction should not be impacted by the project, and a trout moratorium is not required. However, two rare crayfish are found in Bills Creek – Broad River Stream Crayfish [Cambarus lenati, NC Significantly Rare (SR)] and Carolina Foothills Crayfish (Cambarus johni, NC SR). Effective erosion and sediment control are needed on this project to minimize impacts to these species. The application proposes to stabilize an eroding reach of stream by regrading the stream banks and armoring them with riprap. Erosion control matting would be placed behind the riprap, and we recommend replacing that with filter cloth, keeping biodegradable matting on the slope above the riprap. It appears that vegetation along the stream banks has been heavily maintained in the project reach and throughout the property. The lack of woody riparian vegetation is likely a major driver for the stream bank instability on Bills Creek. The proposed stabilization scheme does not involve the planting of a shrubs or trees; armoring banks as proposed will likely only provide a short-term solution to bank erosion. We strongly recommend that the applicant use bioengineering methods, such as geolifts and native woody plantings, to ensure the long-term stability of the project and benefit both aquatic and terrestrial wildlife. Incorporating live Apple Valley Golf Course Stabilization Page 2 September 23, 2022 Bills Cr, Rutherford Co stakes/woody vegetation will provide much more insurance against erosion and benefits to the stream such as shading and habitat. We strongly recommend that the landowners plant a woody buffer on the entire reach – even 10 ft outward from the top of bank, maintained at a height of 3- 5 ft would provide more protection. We offer the following recommendations for the project to minimize impacts to fish and wildlife resources: 1. 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 matted as soon as possible, preferably at the end of each work day. 2. Instream work should be performed during low flows. Work should be done from the top of the bank, and flows should be diverted around the work area, as described. 3. Any erosion control matting used should be free of plastic or nylon mesh, as this type of mesh netting frequently entangles wildlife and is slow to degrade, resulting in a hazard that may last for years. 4. We recommend modifying the design to incorporate bioengineering methods instead of bank armoring. Native woody plantings should be incorporated to achieve a buffer as wide as infrastructure and existing land uses allow in order to ensure project success. Native trees, shrubs, grasses, and wildlflowers should be planted. Thank you for the opportunity to review and comment on this project. Please contact me at (828) 400-4223 if you have any questions about these comments. Sincerely, Andrea Leslie Mountain Region Coordinator, Habitat Conservation Program ec: McKenzie Beyer, ClearWater Mitchell Anderson, NC Division of Water Resources