Agenda - 03-05-1990 - Laserfiche WebLink

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R-8 23 G. Water Quality Streams within the project limits lie within the Cape Fear River and Neuse River drainage basins. Streams that are crossed by the project or that have perennial or intermittent tributaries that are crossed are listed below. NRCD-DEM water quality classifications (1989) are also shown. Streams listed twice indicate that crossings occur at segments with different water quality classifications. Sevenmile Creek WS III NSW Haw Creek Class C Back Creek Class C NSW Haw River Class C NSW Bowden Branch Class C NSW Alamance Creek Class C NSW Gum Creek Class C NSW Back Creek WS III NSW Little Alamance Creek WS III NSW Rock Creek WS III NSW South Buffalo Creek Class C NSW Mile Run Creek Class C NSW • Class WS III indicates a water supply segment with no categorical restrictions on watershed development or discharges; these streams are suitable for all Class C uses. Class C waters are suitable for• fish and wildlife propagation, secondary recreation, and other uses requiring waters of low quality. The NSW classification indicates nutrient sensi- tive waters requiring limitations on nutrient input. Most of these streams support moderate populations of sunfish, crappie, catfish, suckers, and pickerel . Some streams, such as South Buffalo Creek, are of minimal fishing significance because of severe pollution (Fish, 1968) . Sewer lines are located along several of the larger streams. The North Carolina Department of Transportation will require the contractor to follow erosion and sedimentation control measures during construction. These measures will include the use of berms, dikes, dams, and silt basins, as needed. The erosion and sedimentation control measures will be monitored during construction for proper maintenance. In addition, areas graded during construction will be seeded and mulched as soon as possible to minimize erosion and sedimentation. Orange County and Town of Hillsborough officials have expressed concern for potential impacts of the project on the proposed Sevenmile Creek reservoir, which is to be constructed following completion of the subject I-85 improvements. The reservoir is to be constructed on the south side of I-85 in the vicinity of the I-85/SR 1120 and I-85/US 70 Connector interchanges in Orange County. The reservoir is to be used as a raw water source for the Town of Hillsborough and surrounding areas. I-85 crosses Sevenmile Creek approximately 0.4 mile downstream of the proposed dam; therefore, the project will not cross the reservoir. I-85 does cross minor tributaries that will empty into the reservoir.