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<br />ABBREVIATIONS, ACRONYMS, AND TERMS <br />FLOOD PROOFING - How TO EVALUATE YOUR OPTIONS <br /> <br />AlE <br />BFE <br /> <br />cfs <br /> <br />COE <br />FEMA <br />FIRM <br />FIS <br />fps <br />HUD <br />LOMA <br />NFIP <br />SBA <br />SCS <br />TVA <br />USGS <br />NGVD <br /> <br />ArchitecturallEngineering <br /> <br /> <br />Base (lOO-year) Flood Elevations <br /> <br /> <br />cubic feet per second <br /> <br /> <br />U.S. Army Corps of Engineers <br /> <br /> <br />Federal Emergency Management Agency <br /> <br />Flood Insurance Rate Map <br /> <br />Flood Insurance Study <br /> <br /> <br />feet per second <br /> <br /> <br />Department of Housing and Urban Development <br /> <br />Letter of Map Amendment <br /> <br /> <br />National Flood Insurance Program <br /> <br />Small Business Administration <br /> <br /> <br />Soil Conservation Service <br /> <br /> <br />Tennessee Valley Authority <br /> <br /> <br />United States Geological Survey <br /> <br />National Geodetic Vertical Datum <br /> <br />Alluvial Fan Flooding: Floods emanating from the confined chan- <br />nel of a mountain canyon (apex) and proceeding onto a relatively <br />flat fan-shaped valley below. Active fans involve braided channels <br />that occur erratically, creating random, unpredictable patterns. <br /> <br />Buoyancy Force: Buildings with basements located in pervious <br />soils will experience uplift forces on the basement floor which are <br />caused by water seeking to rise to the flood water level adjacent to <br />the building. If the weight of building is less than the uplift forces, <br />the building will float or the floor will collapse. <br /> <br />Flood Frequency: Average number of years between exceedances <br />of specific flood magnitudes. Also referred to as annual exceedance <br />probability (in percent) of a flood being exceeded in any given year. <br /> <br />Hydrostatic Force: Structural loading on buildings caused by still- <br />water floods. <br /> <br />Hydrodynamic Force: Structural loading on buildings caused by <br />moving floodwaters. <br /> <br />ii <br />