The boundaries of the floodplain district shall be determined by scaling distances on the Official Floodplain Zoning District Map. Where interpretation is needed as to the exact location of the boundaries of the floodplain district, the city’s Zoning Administrator shall make the necessary interpretation based on the ground elevations that existed on the site at the time the community adopted this chapter, or the date of the first National Flood Insurance Program map that placed the site in the floodplain if earlier, and the regional (100-year) flood profile, if available. If the 100-year flood elevations are not available, the community shall require a floodplain evaluation consistent with § 152.26(C) of this chapter to determine a 100-year flood elevation for the site; or base its decision on available hydraulic/hydrologic, or site elevation, survey data which demonstrates the likelihood the site is within, or outside of, the floodplain.
(Ord. 262, passed 10-12-2009)