(A) No subdivision of land shall be allowed by the city within the defined floodway.
(B) There shall be no subdivision of land within the defined floodway fringe unless the following conditions are met:
(1) It is determined by the city after receipt of additional hydrological or grade studies from the subdivider or appropriate federal or state agencies that the lands to be developed are no longer subject to being covered by flood water of a 100-year frequency flood;
(2) The location, grade, and flood-proofing of all proposed utilities which are to be extended into or through any portion of the floodplain to serve the proposed development shall first be approved by the city, prior to the extension of such utilities into the floodplain area;
(3) Additional information shall be included with the primary plat of the subdivision in compliance with the requirements and policies of Water Pollution Control Engineering, its assigns or successor agency:
(a) All hydrological and grade information which is necessary to determine the frequency and extent that the subdivision is subject to inundation by flood water;
(b) The type and extent of the proposed use or development of the land, along with such information as is necessary to determine the effect flood waters will have on such development and use, and the effect that such development and use may have upon the flood waters. All such information shall show the location of the proposed use, areas of habitation and employment if any, included within the subdivision, size and floor elevations of any structures, the location and elevation of parking areas, and the location, use, and elevation of all open land areas;
(c) Plans and other required information conforming to the development standards of this chapter;
(d) The limits of the 100-year flood plain;
(e) The amount of fill material brought into the subdivision location, and the location of the borrow area.
(4) The raising of ground elevation shall be accomplished in such a manner that the general flow and storage of water is not unduly restricted or limited and will not cause flood hazards to other lands or developments, either within the proposed subdivision or otherwise, and that said protection shall be accomplished without creating the need of significant public expenditure for flood control; and
(5) Any area within a floodplain from which fill is taken shall be hydrologically designed and maintained to reduce the likelihood of becoming refilled by silt. The subdivider must make arrangements satisfactory to the city binding successors and/or assigns, to regrade or remove such silt as is necessary to return any area to its approved design after flooding has occurred. Any area from which fill is taken within a floodplain shall be of a grade that will continue to permit adequate drainage into the stream or watercourse. If a water area is to be maintained within the floodplain, consideration shall be given to the effect the water area may have upon the flooding of both the land within the floodplain and other lands outside of the floodplain.
(Ord. G-14-93, passed 5-4-93)