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Photo by Tanja Pigott

Floodplain Management

What is a flood?

Flood is defined, in part as;

A general and temporary condition of partial or complete inundation of two or more acres of normally dry land area, or of two or more properties (at least one of which is your property) from overflow of inland or tidal waters, from unusual and rapid accumulation or runoff of surface waters from any source, or from mudflow.

Flooding is the most common natural disaster in the U.S. Floods may result from rain, snow, coastal storms, storm surges, and overflows of dams and other water systems. Floods can develop slowly, or quickly, and flash floods can come with no warning (FEMA V-1005/March 2018).

What is a Special Flood Hazard Area (SFHA)?

Flood hazard areas identified on the Flood Insurance Rate Map (FIRM) are identified as Special Flood Hazard Area (SFHA). SFHA are defined as the area that will be inundated by the flood event having a 1-percent chance of being equaled, or exceeded in any given year. The 1-percent annual chance flood is also referred to as the base flood, or the 100-year flood.

Several different flood zones appear on the FIRM's for the City of Boiling Spring Lakes. Zones X and Shaded X are considered to be low risk for flooding, and are not regulated by ordinance at this time. The following SFHA's within the City have mandatory flood insurance purchase requirements, and floodplain management standards apply:

  • Zone AE - these are areas subject to inundation by the 1-percent annual chance flood event, determined by detailed methods (base flood elevation (BFE) shown);

  • Zone A - these are areas subject to inundation by the 1-percent annual chance flood event generally determined using approximate methodologies. Because detailed hydraulic analysis have not been performed, no BFE's, or flood depths are shown.

To determine if your property is located within the SFHA, please visit

Remember, being outside of the mapped floodplain is NOT a guarantee the property won't flood.