Profile Picture BrandyRiche

created Mar 16 2018

updated Dec 11 2018

Description

The FEMA Floodway describes the limit to which encroachment into the natural conveyance channel can cause one foot or less rise in water surface elevation. The Flood Insurance Rate Map - FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). In 2017 FEMA issued a Digital FIRM or DFIRM that is allows for GIS to make accurate and definitive locations of flood hazard areas. Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Act, which requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated, or insured agencies or institution in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards (Section 2 (b) (4) of the 1973 Flood Disaster Protection Act). In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood insurance coverage offered through the NFIP.Unincorporated Pierce County also regulates as floodway areas at severe risk of channel migration and area were flood waters are deep and or fast flowing per PCC Title 18E.70.

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