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(b) Storage of other materials or equipment may be allowed if readily removable from the area within the time available after a flood warning and in accordance with a plan approved by the Governing Body. 7. Structural works for flood control that will change the course, current or cross section of protected wetlands or public waters shall be subject to the provisions of Minnesota Statute, Chapter 103G. Community-wide structural works for flood control intended to remove areas from the regulatory flood plain shall not be allowed in the floodway. 8. A levee, dike or floodwall constructed in the floodway shall not cause an increase to the loo-year or regional flood and the technical analysis must assume equal conveyance or storage loss on both sides of a stream. SECTION 10-050 FLOOD FRINGE DISTRICT (FF) a. Permitted Uses: Permitted Uses shall be those uses of land or structures listed as Permitted Uses in the underlying roning use district(s). If no pre-existing, underlying zoning use districts exist, then any residential or non-residential structure or use of a structure or land shall be a Pennitted Use in the Flood Fringe provided such use does not constitute a public nuisance. All Permitted Uses shall comply with the standards for Flood Fringe "Permitted Uses" listed in Section 1O-050(b) and the "Standards for all Flood Fringe Uses" listed in Section 1O-050(e). b. Standards for Flood Fringe Permitted Uses: 1. 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 that 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. 2. As an alternative to elevation on fill, accessory structures that constitute a minimal investment and that do not exceed 500 square feet for the outside dimension at ground level may be internally flood-proofed in accordance with Section 1O-040(d)(5) (c). 3. 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 Special Use, unless said fill is specifically intended to elevate a structure in accordance with Section 10-050(b)(1) of this ,Ordinance. 4. The storage of any materials or equipment shall be elevated on fill to the Regulatory Flood Protection Elevation. 8