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HomeMy WebLinkAbout20101061 Ver 1_Other Agency Comments_20101223 9 North Carolina Wildlife Resources Commission 9 Gordon Myers, Executive Director December 23, 2010 Mr. Tyler Crumbley U.S. Army Corps of Engineers, Regulatory Branch 151 Patton Avenue, Room 208 Asheville, North Carolina 28801-5006 Mr. Ian McMillan NCDENR, Division of Water Quality, 401 Unit 1628 Mail Service Center Raleigh, North Carolina 27699-1628 SUBJECT: 404 Permits/401 Certifications for 2010-2011 Stabilization Projects on Lake Toxaway Transylvania County Dear Mr. Crumbley and Mr. McMillan: I received numerous applications to conduct shoreline stabilization, mostly seawall replacements, along Lake Toxaway in Transylvania County. I visited several of the sites on December 17 and 22, 2010 to assess the potential impacts of these projects on aquatic and shoreline habitats. Most of the projects and their impacts should be similar in nature, so please consider these comments for all stabilization projects to be conducted on the lake during the 2010-2011 seasons. Comments from Commission staff on these projects are provided under provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et seq.) and the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d). These projects will not harm trout spawning and do not need to be avoided during the trout moratorium. Natural cover such as boulders and large fallen trees, which provide spawning and rearing habitats for sunfish, black bass, and other fishes, are sparse along the lake edge due to extensive development. Most shallow water cover that is available includes docks and covered boat houses (and accumulated branches and trash therein) as well as an extensive, but low growing, cover of mostly pondweeds. This vegetation provides some cover and foraging areas for small fish as well as forage for waterfowl including the mallards, buffleheads, American coots, and ring-necks I observed during the visit. Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919) 707-0220 • Fax: (919) 707-0028 Lake Toxaway Transylvania Page 2 December 23, 2010 Projects that involve construction either along undeveloped shorelines or water-ward of existing walls and structures will eliminate shallow water habitat. To help offset these fish habitat losses, we recommend that stabilization either consist of dry-stack boulders or conventional walls with some rip rap lining the bases or wall "toes". These measures, which are consistent with guidelines on power supply reservoirs in the mountains, would provide some physical shoreline complexity for fish and invertebrates that is not afforded by vertical seawalls alone. Also, rip rap dissipates wave energy better than walls and thereby helps prevent them from undermining and collapse. Regardless of whether required by permit/certification, we recommend that applicants incorporate these measures in order to help conserve the fisheries in the lake. Thank you for the opportunity to review and comment on these permit actions. Please contact me at (828) 452-2546 extension 24 if there are any questions about these comments Sincerely, Dave McHenry Mountain Region Coordinator Habitat Conservation Program cc: Mr. K. Barnett, NCDENR, Division of Water Quality Applicants