§ 13-33. Additional analyses and certifications.

As applicable to the location and nature of the proposed development activity, and in addition to the requirements of this section, the applicant shall have the following analyses signed and sealed by a Florida licensed engineer for submission with the site plan and construction documents:

(1)

For development activities proposed to be located in a regulatory floodway, hydrologic and hydraulic 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 shall submit such analysis to FEMA as specified in section 13-34 of this chapter and shall 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 analysis that demonstrates 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 (1) foot at any point within the county. 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.3.

(3)

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.

(4)

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 shall submit the analysis to FEMA as specified in section 13-34 of this chapter.

(5)

For construction of non-residential dry floodproofed buildings, in addition to the dry floodproofing requirements of the Florida Building Code, a flood emergency plan which shall specify at a minimum:

a.

Storage locations of the floodproofing panels.

b.

Method of installation, time frame prior to anticipated event and personnel responsible.

c.

Conditions activating installation of floodproofing panels.

d.

Maintenance of shields and attachment devices.

e.

Periodic practice of installing shields.

f.

Testing sump-pumps and other drainage measures.

g.

Inspections of the material and equipment that activate or implement floodproofing.

h.

Permanent posted locations of the flood emergency plan in at least two (2) conspicuous locations within the structure.

(Ord. No. 2014-1, § III, 1-28-14; Ord. No. 2018-09, § II, 5-8-18)