Agenda - 02-19-1991 - Laserfiche WebLink

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3 2. N.C. 54 bisects the southern tip of Cane Creek watershed and traverses the middle of University Lake watershed. In both, sediment retention ponds should be installed before construction begins. The existing impervious surface of N.C. 54 in Section C is approximately 31 acres. The widening project would increase the impervious surface area by 50 percent to 46 acres. 3. One site identified in the Natural Areas Inventory is located south of N.C. 54. Where Cane Creek crosses the highway, three types of habitats are found: a riparian strip; a steep, dry, west - facing bluff; and mesic slopes. �_. Several important animal species are found in the habitats, including the State - listed notched rainbow mussel, the regionally -rare otter, and a large roost of black vultures Because this is one of the most important wildlife corridors in the county, potential impacts to plant /animal species should be mitigated and the highway designed to permit the movement of wildlife from one side to another. 4. One National Register site, the Inn at Bingham School, may be impacted by widening on the north side. The site is located on the northeast corner of N.C. 54 and Mebane Oaks Road, and contains a mid -19th century Greek Revival house and outbuildings. A determination should be made as to whether or not the Section 106 review process will apply. If applicable, NCDOT should comply with the provisions of that act. 5. Three major drainages tributaries, Cane Creek, Collins Creek, and Morgan Creek, and their floodplains cross N.C. 54. If there are wetlands associated with these floodplains, 404 permits, if required, should be obtained from the Corps of Engineers before construction begins. 6. OWASA and American Stone Company have discussed plans to expand the quarry on N.C. 54. NCDOT should contact both organizations to determine the impact, if any, of the widening project on quarry expansion.