Orange County NC Website
Browse       Search
7 <br /> Post PH to Planning Board Ordinance <br /> An Ordinance Amending the Zoning Ordinance of Orange County <br /> Bold = Proposed Text <br /> StFiIEethew@Il}= Deleted Text <br /> Section 1: Amend Article 22 DEFINITIONS by creating two new definitions as <br /> follows: <br /> Federal Emergency Management Agency (FEMA)—An <br /> independent agency of the federal government <br /> Lot, Usable—The portion of a zoning lot unencumbered by stream <br /> buffers, conservation easements, drainage easements, public and <br /> private rights-of-way, access easements, utility easements. This <br /> definition also includes all areas within lots having slopes greater <br /> than 20% and all areas within wildlife corridors, ponds and lakes. <br /> Section 2: Amend Section 6.23.7a and Article 22 DEFINITIONS of Stream Buffer to <br /> clarify that the stream buffer is not to be included within the floodplain. <br /> Stream Buffer—a stream buffer is an area of land adjacent to perennial <br /> and intermittent streams, or FEMA identified floodplains,which, except <br /> as permitted in Article 6.23.7 of this Ordinance, must remain undisturbed <br /> in its natural state. Perennial streams are shown as solid blue lines and <br /> intermittent streams as broken lines on the USGS Quadrangle maps. <br /> Section 3: (page 6-41 —Zoning Ordinance) 6.23.7d. Calculating the Width of Stream <br /> Buffer <br /> Those streams identified by the Federal Emergency Management Agency <br /> (FEMA) maps to have floodplains shall have stream buffers calculated from <br /> the outside edges of the floodplain. <br /> 1) How to Calculate Slope <br /> a. Draw awe 250' length perpendicular to the "yam lines, at 200-foot <br /> horizontal intervals along the entire length of the outside edges of <br /> the stream,to"e GtFeaR, or the outer edge of the FEMA floodplain, <br /> whichever is greater. <br /> b. Determine the elevation at either the stream bank itself(1) or the outer <br /> edge of the FEMA floodplain,whichever is highest, and at the point <br /> 250'from the stream or FEMA floodplain, whichever is applicable, <br /> along the perpendicular line (2). <br /> c. Subtract (1)from (2). <br /> d. Divide c. by 250. <br /> e. Multiply d. by 100. <br /> f. Perform this calculation for both sides of the stream or floodplain. <br /> G:robert/august2000ph/StreamBuffer0rdinance(PostPHtoPB) <br />