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Where 500-year flood elevations are not specified in the FEMA FIRMs 360497 or FEMA FIS 360497, such elevations shall be determined by a registered design professional using modeling based on generally accepted engineering methods or a review of available data from city, state and federal agencies.

Related Code Sections

G103.3.2 Flood-Resistant Construction, Determination of 500-Year Flood Elevations
Where 500-year flood elevations are not specified in the FEMA FIRMs 360497 or FEMA FIS 360497, such elevations shall be determined by a registered ...
Section G103 Flood-Resistant Construction, Administration
Where 500-year flood elevations are not specified in the FEMA FIRMs 360497 or FEMA FIS 360497, such elevations shall be determined ...
Section G501 Flood-Resistant Construction, Modifications
IIIc, d DFE = BFE + 2 ft IVc DFE = BFE + 2 ft or 500-year flood elevation, whichever is higher Minimum elevations shown ...