Orange County NC Website
I <br />23 ' <br />An exception shall be allowed for golf courses where the line of play cxosses a stream i <br />buffer. Only trees which obstruct the intended line of play may be cut, provided stumps and <br />root mass are not removed and trees which are cut can be removed in a sensitive manner <br />which miri;mi~es additional disturbance to the stream buffer. <br />3) Ne~v vegetation shall be planted to capture non-source pollutants before they reach the <br />perennial stream, as per applicable Orange County Standards. <br />d) Calculating Width of Stream Suffer <br />1) How to Calculate Slope <br />a. Draw a line perpendicular to the stream. <br />b. Determine the elevation at the stream itself (1), and at the point 250' from the <br />stream along the perpendiculaz line (2). <br />c. Subtract (1) from (2). <br />d. Divide c. by 250. <br />e. Multiple d. by 100 <br />Hereinafter, the number derived in e. will be referred to as "slope value". <br />2) Method A -Stream Buffer Based on 51o and Groundcover <br />The width of the buffer shall be fifty (50) feet from each edge of the floodplain,~plus the <br />slope value multiplied by four. <br />3) Method B -Stream Buffer Based on Slo and Crroundcover <br />STREAM BUFFER WIDTH (IN FEET) <br />BASED ON SLOPE AND GROUNDCOVER' <br />Slope Value Type of Groundeover <br /> Grass Woods <br />2 to 4.9 100 50 <br />5 to 9.9 150 100 <br />10 to 14.9 200 100 <br />15 or greater 250 150 <br />In addition to the bu,~r zone resulting from the calculations below, a stream buffer shall include any <br />portion of a floodplai~as defined in the Orange County Flood Damage Prevention Ordinance, by special <br />survey by a registered engineer or surveyor, or by alluvial soils as designated in the Orange County Soils <br />Survey. <br />The required stream 8uf~`er zone shall not be limited to one calculation, but shall be based on calculations <br />made at points where topographical and ground cover conditions change based on an analysis of the site. <br />