As applicable to the location and nature of the proposed development activity, and in addition to the requirements of this section, the applicant will have the following analyses signed, sealed, and certified to and for reliance by the Town by a Florida professional engineer licensed pursuant to Chapter 471, Fla. Stat., for submission with the site plan and construction documents:
(1) For development activities proposed to be located in a regulatory floodway, a floodway encroachment analysis that demonstrates that the encroachment of the proposed development will not cause any increase in base flood elevations; where the applicant proposes to undertake development activities that do increase base flood elevations, the applicant must submit such analysis to FEMA as specified in § 4A-191 of this floodplain management code and must submit the Conditional Letter of Map Revision, if issued by FEMA, with the site plan and construction documents.
(2) For development activities proposed to be located in a riverine flood hazard area for which base flood elevations are included in the Flood Insurance Study or on the FIRM and floodways have not been designated, hydrologic and hydraulic analyses that demonstrate that the cumulative effect of the proposed development, when combined with all other existing and anticipated flood hazard area encroachments, will not increase the base flood elevation more than one foot at any point within the community. This requirement does not apply in isolated flood hazard areas not connected to a riverine flood hazard area or in flood hazard areas identified as Zone AO or Zone AH on the FIRM.
(3) For alteration of a watercourse, an engineering analysis prepared in accordance with standard engineering practices which demonstrates that the flood-carrying capacity of the altered or relocated portion of the watercourse will not be decreased, and certification that the altered watercourse shall be maintained in a manner which preserves the channel's flood-carrying capacity; the applicant must submit the analysis to FEMA as specified in § 4A-191 of this floodplain management code.
(4) For activities that propose to alter sand dunes or mangrove stands in coastal high hazard areas (Zone V), an engineering analysis that demonstrates that the proposed alteration will not increase the potential for flood damage.
(Ord. 2014-01, adopted 2-19-14; Am. Ord. 2017-05, adopted 12-20-17)