No development in the SFHA, where a floodway has not been determined shall create a damaging or potentially damaging increase in flood heights or velocity or threat to public health, safety and welfare or impair the natural hydro logic and hydraulic functions of the floodway or channel, or impair existing water quality or aquatic habitat. Construction impacts shall be minimized by appropriate mitigation methods as called for in this chapter. No new structures or buildings with basements are permitted within the SFHA as determined by elevation from an FIS or detailed flood study. All buildable residential and nonresidential lots must be outside the SFHA for new development to minimize flood risk associated with base flood and higher magnitude floods. Subdivisions and planned unit developments are required to obtain a Letter of Map Revision from FEMA in accordance with § 152.091.
(Ord. 3187, passed 1-22-2019) Penalty, see § 152.999