100-year flood plain definition

100-year flood plain means any land area that is subject to a one percent or greater chance of flooding in any given year from any source.
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100-year flood plain means the geographical area defined by FEMA as having a one percent chance of being inundated by a flooding event in any given year.
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100-year flood plain means the area inundated during the pas- sage of a flood with a peak discharge having a one percent chance of being equaled or exceeded in any given year at a specified location on a watercourse.
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More Definitions of 100-year flood plain

100-year flood plain means the line that corresponds to the limit line of a flood likely to occur once every one hundred years.
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100-year flood plain means the area inundated during the passage of a flood with a peak discharge having a one per- cent chance of being equaled or exceeded in any given year at a specified location on a watercourse.
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Related to 100-year flood plain

  • 100-year floodplain means any area of land that:

  • 100-year flood means a flood that has a 1-percent or greater chance of recurring in any given year or a flood of a magnitude equaled or exceeded once in 100 years on the average over a significantly long period.

  • Flood plain means land that:

  • Base Flood Elevation (BFE) means a determination of the water surface elevations of the base flood as published in the Flood Insurance Study. When the BFE has not been provided in a “Special Flood Hazard Area”, it may be obtained from engineering studies available from a Federal, State, or other source using FEMA approved engineering methodologies. This elevation, when combined with the “Freeboard”, establishes the “Regulatory Flood Protection Elevation”.

  • Floodplain or flood-prone area means any land area susceptible to being inundated by water from any source. See "Flood or flooding."