Floodplain Management

The City of Rapid City is a participant in the National Flood Insurance Program administered by the Federal Emergency Management Agency (FEMA). This program provides subsidized flood insurance for all property owners, provided that the local government institutes adequate land use and development control measures for preventing and reducing property damage from flooding. In addition, the City has to ensure that projects within or fringing on a Special Flood Hazard Area comply with FEMA regulations and requirements.

On February 18, 1998 FEMA issued a Flood Insurance Rate Map (FIRM) that identified the Special Flood Hazard Areas (SFHAs) in the Rapid City area. On June 3, 2013 FEMA completed a re-evaluation of the flood hazards in Pennington County and issued new FIRM’s, a Digital FIRM (DFIRM) and Flood Insurance Study (FIS) report.

Know Your Flood Hazard:  The Special Flood Hazard Area (SFHA), shown on the flood map is known as the 100-year floodplain. It is more precisely defined as the floodplain associated with a flood that has a 1-percent annual chance of being equaled or exceeded in any given year. The 100-year flood is not a flood event that happens once in a hundred years, rather a flood event that has a one percent chance of occurring every year. Any flood zone that begins with the letter A is subject to the 1 percent annual chance flood.  To determine if your property is in the SFHA follow the links below or contact the City’s Floodplain Administrator 394-4154:

NEW - Lime Creek Special Flood Hazard Area Remapping 2022


pdf Insurance Information (44 KB)

Flood Safety: Pennington County Emergency Management http://www.pennco.org/em

pdf Protect Your Property (40 KB)

Developing in the SFHA:

Elevation Certificates

pdf Rapid Creek Reporting Gauges (41 KB)

pdf Protect Rapid Creek (20 KB)

Emergency Management Information: The city of Rapid City and Pennington County entered into an agreement to form a joint, local organization to provide emergency and disaster services in 1978. This is known as the joint powers agreement. It serves as the countywide agency for the purpose of overseeing the planning, response, recovery and mitigation of any and all major disasters/emergencies that occur within the county.  http://www.pennco.org/em


For information please contact:  Mary Bosworth, Flood Plain Administrator - 394-4154 This email address is being protected from spambots. You need JavaScript enabled to view it.



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