![]() ![]() The NFIP has mapped flood hazards in approximately 20,000 communities within the United States. Definitions and background for common flood hazard and mapping terms used below are available from FEMA. Through its Mitigation Division, FEMA manages the National Flood Insurance Program (NFIP). where floodproofing is permitted, employing appropriate methods and materials to either dry-floodproof or wet-floodproof those portions of the building below the design flood levelĪ number of federal agencies have been involved in identifying flood hazards, but the agency that is most directly involved (also, in the regulation of development within flood hazard areas, and in responding to flood disasters) is the Federal Emergency Management Agency (FEMA).using flood-damage-resistant materials for any portions of the building below the design flood level.designing the building foundation and any portions subject to flooding to withstand design flood conditions and loads, and.elevating as much of the building as possible above the design flood level,.Planning, designing and constructing the building to minimize any potential flood damages by:.In the United States, these practices are based largely on the National Flood Insurance Program (NFIP) and its regulations governing land management and use ( 44 CFR Part 60).ĭetermining design flood characteristics anticipated at the selected site, both now and over the life of the building ![]() The likelihood and impacts of these damages can be minimized through the use of siting, design, construction and maintenance practices appropriate to floodplain areas. contamination of the building due to flood-borne substances or mold.degradation of building materials, either during the flood or sometime after the flood, and.direct damage during a flood from inundation, high velocity flow, waves, erosion, sedimentation and/or flood-borne debris,.One or more water bodies can contribute to flooding at a given site-a river, stream, ocean, bay, lake, pond, storm water retention/detention area, etc.-depending on local topography and hydraulic/hydrologic conditions.įlooding can damage buildings and their contents in many ways, but the most common flood damages arise from: FEMA more specifically defines a flood as a general and temporary condition of partial or complete inundation of normally dry land areas from (1) the overflow of inland or tidal waters or (2) the unusual and rapid accumulation or runoff of surface waters from any source. Flooding is the overflow of excess water from a water body onto adjacent lands. ![]()
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