Located within the areas of special flood hazard established in § 151.07, where streams exist but where no base flood data has been provided or where base flood data has been provided without floodways, the following provisions apply:
(A) No encroachments, including fill material or structures shall be located within areas of special flood hazard, unless certification by a registered professional engineer is provided demonstrating 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 foot at any point within the community. The engineering certification should be supported by technical data that conforms to standard hydraulic engineering principles.
(B) New construction or substantial improvements of buildings shall be elevated or flood- proofed to elevations established in accordance with § 151.41(B)(9).
(Ord. 497, passed 12-7-93)