Posted: April 11, 2017
Rapid City
Agenda Item Summary

Agenda Item Ref. #: PW041117-11

Agenda Item Title:

Update on the revised FEMA Flood Insurance Rate Map (FIRM) Special Flood Hazard Area (SFHA, 100 year Floodplain) as a result of the recently completed project - Detailed Analysis of Federal Emergency Management Agency (FEMA) Special Flood Hazard Areas (SFHA), Project Number 15-2244, CIP 51057.

Origination Group:
Public Works Committee
Origination Meeting Date:
04/11/2017
City Council Hearing Date:
04/17/2017
Staff Contact:
Mary Bosworth
Location:
FEMA SFHA located in Haines Av Drainage Basin (north Rapid City), South Canyon Creek Basin (west Rapid City), and Robbinsdale Drain Basin (southeast Rapid City)
Agenda Item Summary:
Letter of Map Revisions were approved by FEMA which resulted in significant changes to the Special Flood Hazard Area (SFHA,100-year Floodplain) in three neighborhoods in Rapid City. The neighborhoods are located in the South Canyon area (Pierre St, Capital St, N 48th, Staton Pl, Hall St, Brookside Dr and Reder St), the South Robbinsdale area (E Nebraska St and E Centennial St) and the Haines Ave area (East Blvd, Lemmon Ave, Blaine Ave, Willsie Ave and Wood Ave). The new floodplain mapping was based on updated topographic data and revised hydrologic and hydraulic analyses. As a result of the new mapping, several structures and/or properties were removed from the 100-year Floodplain.

Funding Source & Fiscal Impact (if applicable):

Funding Cost Center

Recommendations:

Origination Recommendation Notes:
Forward to City Council for full presentation

Attachments & Links to Download:

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