This chapter's protection standard is the base flood. The best available base flood data are listed below. Whenever a party disagrees with the best available data, the party shall finance the detailed engineering study needed to replace the existing data with better data and submit it to the FEMA and IDNR/OWR for approval prior to any development of the site.
(A) The base flood elevation for the floodplains of Salt Creek and Salt Creek Tributary shall be as delineated on the 100-year flood profiles in the countywide Flood Insurance Study of DeWitt County prepared by the Federal Emergency Management Agency.
(B) The base flood elevation for each floodplain delineated as an AH Zone or AO Zone shall be that elevation (or depth) delineated on the countywide Flood Insurance Rate Map of DeWitt County and dated November 2, 2007.
(C) The base flood elevation for each of the remaining floodplains delineated as an A Zone on the countywide Flood Insurance Rate Map of DeWitt County shall be according to the best data available from federal, state or sources. Should no other data exist, the applicant must finance an engineering study to determine base flood elevations.
(D) The base flood elevation for the floodplains of those parts of unincorporated DeWitt County that are within the extraterritorial jurisdiction of the city, or that may be annexed into the city, shall be as delineated on the 100-year flood profiles in the Flood Insurance Study of DeWitt County prepared by the Federal Emergency Management Agency and dated November 2, 2007.
(Ord. 840, passed 8-6-07)