§ 27.06.120. General standards.

(a)

No permit for floodplain development shall be granted for new construction, substantial improvement, and other improvements, including the placement of manufactured homes, within any numbered or unnumbered A zones, AE, AO, and AH zones, unless the conditions of this Section are satisfied.

(b)

All areas identified as unnumbered A zones on the FIRM are subject to inundation of the 100-year flood; however, the base flood elevation is not provided. Development within unnumbered A zones is subject to all provisions of this ordinance. If Flood Insurance Study data is not available, the community shall obtain, review, and reasonably utilize any base flood elevation or floodway data currently available from Federal, State, or other sources.

(c)

Until a floodway is designated, no new construction, substantial improvement, or other development, including fill, shall be permitted within any unnumbered or numbered A zones, or AE zones on the FIRM, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one (1) foot at any point within the community.

(d)

All new construction, subdivision proposals, substantial improvement, prefabricated structures, placement of manufactured homes, and other developments shall require:

(i)

Design or adequate anchorage to prevent flotation, collapse, or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy;

(ii)

Construction with materials resistant to flood damage;

(iii)

Utilization of methods and practices that minimize flood damages;

(iv)

All electrical, heating, ventilation, plumbing, air-conditioning equipment, and other service facilities be designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding;

(v)

New or replacement water supply systems and/or sanitary sewage systems 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 be located so as to avoid impairment or contamination; and

(vi)

Subdivision proposals and other proposed new development, including manufactured home parks or subdivisions, located within special flood hazard areas are required to assure that:

(aa)

All such proposals are consistent with the need to minimize flood damage;

(bb)

All public utilities and facilities, such as sewer, gas, electrical, and water systems are located and constructed to minimize or eliminate flood damage;

(cc)

Adequate drainage is provided so as to reduce exposure to flood hazards; and

(dd)

All proposals for development, including proposals for manufactured home parks and subdivisions, of greater than five (5) acres or fifty (50) lots, whichever is lesser, include within such proposals base flood elevation data.

(Ord. No. 47-346, § 12, 2-13-07; Ord. No. 50-381, § 4, 12-13-16)