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Article 10: Definitions <br /> Section 10.1: Definitions <br /> <br />Orange County, North Carolina – Unified Development Ordinance Page 10-17 <br /> <br />Any combination of structural and nonstructural additions, changes, or adjustments to structures, which <br />reduce or eliminate risk of flood damage to real estate or improved real property, water and sanitation <br />facilities, or structures with their contents. <br />Flood-resistant material <br />Any building product, material, component or system, capable of withstanding direct and prolonged <br />contact (minimum 72 hours) with floodwaters without sustaining damage that requires more than low-cost <br />cosmetic repair. Any material that is water-soluble or is not resistant to alkali or acid in water, including <br />normal adhesives for above-grade use, is not flood-resistant. Pressure-treated lumber or naturally decay- <br />resistant lumbers are acceptable flooring materials. Sheet-type flooring coverings that restrict <br />evaporation from below and materials that are impervious, but dimensionally unstable are not acceptable. <br />Materials that absorb or retain water excessively after submergence are not flood-resistant. Please refer <br />to Technical Bulletin 2, Flood Damage-Resistant Materials Requirements, and available from the FEMA. <br />Class 4 and 5 materials, referenced therein, are acceptable flood-resistant materials. <br />Floodway <br />The channel of a river or other watercourse and the adjacent land areas that must be reserved in order to <br />discharge the base flood without cumulatively increasing the water surface elevation more than one foot. <br />This term may also be referred to as “regulatory floodway.” <br />Floodway encroachment analysis <br />An engineering analysis of the impact that a proposed encroachment into a floodway or non- <br />encroachment area is expected to have on the floodway boundaries and flood levels during the <br />occurrence of the base flood discharge. The evaluation shall be prepared by a qualified North Carolina <br />licensed engineer using standard engineering methods and models. <br />Flood Zone <br />A geographical area shown on a Flood Insurance Rate Map that reflects the severity or type of flooding in <br />the area. <br />Floor <br />See “Lowest Floor”. <br />Floor Area Ratio <br />Floor Area Ratio (FAR) is the maximum floor area permitted for each square foot of land area. <br />Footcandle <br />See Outdoor Lighting, Foot-candle. <br />Forest Plantation <br />An area of planted trees that may be conifers (pines) or hardwoods. On a plantation, the intended crop <br />trees are planted rather than naturally regenerated from seed on the site, coppice (sprouting), or seed <br />that is blown or carried into the site. <br />Forest Vegetation <br />The plants of an area which grow together in disturbed or undisturbed conditions in various wooded plant <br />communities in any combination or trees, saplings, shrubs, vines, and herbaceous plants. This includes <br />mature and successional forests as well as cutover stands. <br />Foundry <br />A land use involved with the production of castings or products through poring molten metal into molds or <br />casts. <br />Fraternity, Sorority House <br />182