§ 14-6.2.4. Non-residential elevation and/or floodproofing—Substantial damage/improvement.

Permits issued for substantial damage/improvement of any non-residential structure including accessory structure greater than one thousand (1,000) square feet, must have the required NAVD 88 elevation of the lowest floor or lowest horizontal portion of the structural members and the base flood elevation noted on the permit. In lieu of meeting the elevation requirement stated below, a non-residential structures in Zone AE may be flood-proofed so that structural components are capable of resisting hydrostatic and hydrodynamic loads including the effects of buoyancy and be certified by a registered professional engineer or architect that the standards of this section are satisfied.

(1)

In Zone AE inside the Hurricane Storm Damage Risk Reduction System (HSDRRS), the lowest finished floor of the building shall be at the highest of either:

a.

The BFE on the FIRM; or

b.

Six (6) inches above the centerline of the street.

(2)

In Zone AE outside the Hurricane Storm Damage Risk Reduction System (HSDRRS), the building shall have:

a.

The lowest finished floor at or above the BFE on the FIRM.

(3)

In Zone VE, the bottom of the lowest horizontal portion of the structural members of the lowest floor (excluding pilings or columns) shall be:

a.

At the BFE on the FIRM; and

b.

The space below the lowest floor shall be free of obstructions or shall be constructed of breakaway walls. Total floor area of any enclosed area below the BFE shall not exceed two hundred ninety-nine (299) square feet, including breakaway walls; and

c.

Fill shall not be used for structural support of buildings.

(Ord. No. 25457 , § 1, 11-15-17)