(a) No permit for development shall be granted for new construction, substantial improvements and other improvements, including the placement of manufactured homes within the identified flood plain, unless the provisions of this section are complied with.
(b) All areas identified as unnumbered A Zones by the Federal Insurance Administration are subject to inundation of the 100-year flood, except that the water surface elevation was not provided. The unnumbered A Zones shall be subject to all development provisions of this chapter. If Flood Insurance Study data are riot available, the City shall utilize base flood elevation/ floodway data currently available within its area of jurisdiction.
(c) New construction, subdivision proposals, substantial improvements, prefabricated buildings, placement of manufactured homes and other developments shall require:
(1) Design or anchorage to prevent flotation, collapse or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy;
(2) New or replacement water supply systems and/or sanitary sewerage systems to be designed to minimize or eliminate infiltration of flood waters into the systems and discharges from the systems into flood waters, and on-site waste disposal systems to be located so as to avoid impairment or contamination;
(3) Construction with materials resistant to flood damage, utilizing methods and practices that minimize flood damage, with electrical, heating, ventilation, plumbing and air conditioning equipment and other service facilities that are designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding;
(4) All utility and sanitary facilities to be elevated or floodproofed to one foot above the regulatory flood elevation;
(5) That until a floodway has been designated, no development, including a landfill, shall be permitted within the identified flood plain, unless the applicant for the land use has demonstrated that the proposed use, when combined with all other existing and reasonably anticipated uses, will not increase the water surface elevation of the 100-year flood more than one foot on the average cross-section of the reach in which the development or landfill is located, as shown on the Flood Plain Study incorporated by reference in Section 1430.05(c).
(6) Storage of materials and equipment, as follows:
A. The storage or processing of materials that are, in time of flooding, buoyant, flammable or explosive or that could be injurious to human, animal or plant life, is prohibited.
B. Storage of other materials or equipment may be allowed if they are not subject to major damage by floods and if they are firmly anchored to prevent flotation or readily removable from the area within the time available after a flood warning.
(7) That subdivision proposals and other proposed new development, including manufactured home parks or subdivisions, be required to ensure that:
A. All such proposals are consistent with the need to minimize flood damage.
B. All public utilities and facilities, such as sewer, gas, electrical and water systems, are located, elevated and constructed to minimize or eliminate flood damage.
C. Adequate drainage is provided so as to reduce exposure to flood hazards.
D. Proposals for development, including proposals for manufactured home parks and subdivisions, of five acres or fifty lots, whichever is less, include within such proposals the regulatory flood elevation.
(Ord. 1114. Passed 2-23-88.)