Unified Development Ordinance, 4th supplement, September 2017

Part 10A: Unified Development Ordinance City of Raleigh, North Carolina 12 – 7 Effective Date: September 01, 2013 Supp. No. 2 Article 12.2. Defined Terms | CHAPTER 12. DEFINITIONS F Flood Hazard Boundary Map The official map of the City on which appears a description of the boundaries of flood -plain, -prone and/or -hazard areas, including representations of the floodway, floodway fringe, future conditions flood hazard areas. The map is applicable to the community within the corporate limits and within the extraterritorial jurisdiction of the City. The flood hazard boundary map(s) consist of flood insurance rate maps and drainage basin study maps, flood hazard soils plus additional distances required in this UDO and recorded flood storage areas required by this UDO. The floodway areas, floodway fringe areas and future conditions flood hazard areas shown and illustrated on floodway hazard boundary maps are hereby adopted as official flood hazard boundary maps and floodway maps for the City and extraterritorial jurisdiction of the City. These maps and other data are hereby incorporated herein by reference and duly made a part of this chapter. The most recent maps and data officially approved by the City Council are identified in the evidence of the Council’s action and are kept on file in the Inspections Department for public inspection. Flood Hazard Soils Those types of soils in the relatively flat areas associated with natural watercourses which are subject to periodic flooding. The types of soils and their corresponding symbols are as follows: Name Map Symbol Altavista fine sandy loam, 0% to 4% slopes AfA Augusta fine sandy loam Au Buncombe soils Bu Chewacla soils Cm Congaree fine sandy loam Co Congaree silt loam Cp Mantachie soils Me Roanoke fine sandy loam Ro Wahee fine sandy loam Wh Wehadkee silt loam Wn Wehadkee and Bibb soils Wo Flood Insurance Rate Map (FIRM) An official map of the city on which appears a description of the boundaries of floodplain, floodprone and flood hazard areas, including representations of the floodway, floodway fringe, future conditions flood hazard areas and a delineation of the risk premium zones applicable to the community within the corporate limits and within the extraterritorial jurisdiction of the City. The flood insurance study, Wake County, Federal Emergency Management Agency, latest publication, consisting of (i) flood insurance rate maps and (ii) other pertinent data furnished by the Federal Emergency Management Agency (FEMA) and the U.S. Army Corps of Engineers, to the City, showing and illustrating floodway areas, floodway fringe areas and future conditions flood hazard areas are hereby adopted as official flood hazard boundary maps and floodway maps for the City and extraterritorial jurisdiction of the City. These maps and other data are hereby incorporated herein by reference and duly made a part of this UDO. The most recent maps and data officially approved by the City Council are identified in the evidence of the City Council’s action and are kept on file in Planning and Development for public inspection. Flood Insurance Study An examination, evaluation and determination of flood hazards, corresponding water surface elevations (if appropriate), flood hazard risk zones and other flood data in a community issued by the Federal Emergency Management Agency. The flood insurance study report includes flood insurance rate maps (FIRM). Flood Lamp A form of lighting designed to direct its output in a specific direction with a reflector formed from the glass envelope of the lamp itself. Such lamps are so designated by the manufacturers and are typically used in residential outdoor area lighting. Flood Light A form of lighting designed to direct its output in a diffuse, more or less specific direction, with reflecting or refracting elements located external to the lamp. Floodplain, Floodprone or Flood Hazard Area The maximum area, adjoining a river, stream, watercourse or lake which is likely to be flooded, by the base flood or the future conditions flood. The flood -plain, -prone and/or -hazard area includes “floodway” areas, “floodway fringe” areas and future conditions flood hazard areas. These areas are illustrated on flood hazard boundary maps, flood hazard soils plus additional distances, recorded flood storage areas required by this UDO and drainage basin study maps.

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