The Town Planning and Zoning Commission shall obtain, review and reasonably utilize any base flood elevation and floodway data available from a federal, state or other source, including data developed pursuant to § 152.095(D) of this chapter, as criteria for requiring that new construction, substantial improvements, or other development in Zone A on the Community’s FIRM meet the standards in §§ 152.077 through 152.083.
(A) In A zones, where base flood elevations have been determined, but before a floodway is designated, no new construction, substantial improvement, or other development (including fill) shall be permitted which will increase base flood elevations more than one foot at any point along the watercourse when all anticipated development is considered cumulatively with the proposed development.
(B) Should data be requested and/or provided, the town shall adopt a regulatory floodway based on the principle that the floodway must be able to convey the waters of the base flood without increasing the water surface elevation more than one foot at any point along the watercourse.
(Ord. passed 4-11-1991; Ord. passed 5-10-2010)