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Page 10 e H. A levee, dike or floodwall constructed in the floodway shall not cause an increase to the 100-year or regional flood and the technical analysis must assume equal conveyance or storage loss on both sides of a stream. 902.08 - Flood Fringe District (FF). The Flood Fringe District is established for areas of the floodplain not a part of the watercourse or channel which would not distract from the discharge of a flood, but are subject to backwaters and inundation during flood stage. Limited development may be permitted in this district provided the development is protected from the flood waters. e 1. ?ermitted Use. Permitted Uses shall be those uses of land or structures listed as Permitted Uses in the underlying zoning use district(s). The following uses have a low flood damage potential and do not obstruct flood flows. These uses shall be permitted within the Flood Fringe District to the extent they are not prohibited by any other ordinance and provided all permits or authorizations are received as may be required by other City ordinances or regulations of other governmental agencies having jurisdiction. In addition, no use shall adversely affect the capacity of the channels or floodways of any tributary. All Permitted Uses shall comply with the standards for Flood Fringe "Permitted Uses" listed in Section 902.08 (2) and the "Standards for all Flood Fringe Uses" listed in Section 902.08(5). 2. ~dditional Standards for Flood ~ringe Permitted Uses~ A. All structures, including accessory structures, must be elevated on fill so that the lowest floor including basement floor is at or above the Regulatory Flood Protection Elevation. The finished fill elevation for structures shall be no lower than one (1) foot below the Regulatory Flood Protection Elevation and the fill shall extend at such elevation at least fifteen (15) feet beyond the outside limits of the structure erected thereon. B. As an alternative to elevation on fill, accessory structures that constitute a minimal investment and that do not exceed five-hundred (500) square feet for the outside dimension at ground level may be internally flood proofed in accordance with Section 902.06(4)(E)(iii). e C. The cumulative placement of fill where at anyone time in excess of one-thousand (1/000) cubic yards of fill is located on the parcel shall be allowable only as a Conditional Use, unless said fill is specifically intended to elevate a structure in accordance with Section 902.08(2)(A) of this Ordinance.