Regulatory flood definition

Regulatory flood means the Flood having a one-percent (1%) chance of being equaled or exceeded in any given year, as calculated by a method and procedure that is acceptable to and approved by the Indiana Department of Natural Resources and FEMA. The Regulatory Flood elevation at any location is as defined in Article 5.5(F)(2) of this5CHAPTER 5 ordinance. The "Regulatory Flood" is also known by the term "Base Flood", "One-Percent (1%) Annual Chance Flood", and "100-Year Flood".
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Regulatory flood means the 1:100-year flood, the limits of which define the riverine flooding hazard.
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Regulatory flood means a flood which is representative of large floods known to have occurred generally in the area and reasonably characteristic of what can be expected to occur in a particular stream or river. Regulatory flood generally has a frequency of approximately one hundred years, determined from an analysis of floods in a particular stream and other streams in the same general region.
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Examples of Regulatory flood in a sentence

  • Regulatory flood means the flood having a one percent (1%) chance of being equaled or exceeded in any given year, as calculated by a method and procedure that is acceptable to and approved by the Indiana Department of Natural Resources and the Federal Emergency Management Agency.

  • Regulatory flood elevation - the base flood elevation (BFE) or estimated flood height as determined using simplified methods plus a freeboard safety factor of one and one-half (1 ½) feet.

  • Regulatory flood elevations and boundaries of flood prone areas, including Floodways where designated.

  • Regulatory flood means a flood which is representative of large floods known to have occurred generally in the area and reasonably characteristic of what can be expected to occur on a particular stream.

  • Regulatory flood elevation - the one hundred (100) year flood elevation plus a freeboard safety factor of one and one-half (1 ½) feet.


More Definitions of Regulatory flood

Regulatory flood means the one-hundred- (100-) year flood. The water surface elevation of the regulatory flood is the water surface elevation delineated on the flood insurance rate map.
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Regulatory flood means the standard used by the conservation authority having jurisdiction in a particular watershed to define the limit of the flood plain for regulatory purposes.
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Regulatory flood means ‘a flood having a one percent (1%) probability of being equaled or exceeded in a year as calculated by a method and procedure that is approved by the Natural Resources Commission. The regulatory flood is equivalent to the base flood or the 100-year frequency flood.’ ‘Floodway’ means ‘the channel of a river or stream and those portions of the flood plains adjoining the channel which are reasonably required to efficiently carry and discharge the peak flow of the regulatory flood of any river or stream.’” IND. DEP’T OF ENVTL. MGMT., OFFICE OF WATER QUALITY. WATERWAY PERMITTING HANDBOOK (2002), available at
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Regulatory flood means the flood standard equal to or higher than the Base Flood. The Regulatory Flood is defined as the flood having a one percent chance of being equaled or exceeded in any given year assuming the drainage basin is fully developed as shown on the current land use plan. Only structural stormwater control facilities that can be shown will remain and are large enough to be included in the hydrograph routings shall be considered when determining the flood peak.
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Regulatory flood means a level of flooding that a regulatory agency’s design regulations apply to.
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Regulatory flood means that flood having a peak discharge which can be equaled or exceeded on the average of once in a one hundred (100) year period, as calculated by a method and procedure which is acceptable to and approved by the Indiana Natural Resources Commission; this flood is equivalent to a flood having a probability2-14 of occurrence of one percent (1%) in any given year;
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Regulatory flood means the approved standard used in a particular watershed to define the limit of the floodplain for regulatory purposes. The flood standard used to define the floodplain limits is the flood resulting from the 1961 Timmins storm-centred event.
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