iii. Enclosures or Skirting . All enclosures or skirting below the lowest floor shall meet the requirements of §9-1401 Flood Damage Prevention Regulations, k. Provisions for Flood Hazard Reduction, (2) Specific Standards, D. Elevated Buildings, i., ii. and iii. iv. Evacuation Plan . An evacuation plan shall be developed for evacuation of all residents of all new, substantially improved or substantially damaged manufactured home parks or subdivisions located within flood prone areas. This plan shall be filed with and approved by the Director of Engineering or his/her designee and the local Emergency Management Coordinator.
D. Elevated Buildings . Fully enclosed areas, of new construction and substantially improved structures, which is below the lowest floor shall comply with the following regulations:
i. Not for Human Habitation . Shall not be designed or used for human habitation, but shall only be used for parking of vehicles, building access, or limited storage of maintenance equipment used in connection with the premises. Access to the enclosed area shall be the minimum necessary to allow for parking of vehicles (garage door) or limited storage of maintenance equipment (standard exterior door), or entry to the living area (stairway or elevator). The interior portion of such enclosed area shall not be finished or partitioned into separate rooms, except to enclosed storage areas; and,
ii. Flood Resistant Materials . Shall be constructed entirely of flood resistant materials below the regulatory flood protection elevation; and,
iii. Flood Openings . Shall include, in zones A, AE, AH, AO, A99, or Zone X (Future), flood openings to automatically equalize hydrostatic flood forces on walls by allowing for the entry and exit of floodwaters. To meet this requirement, the opening must either be certified by a professional engineer or architect or meet or exceed the following minimum design criteria:
1. Minimum Number . A minimum of two (2) flood openings on different sides of each enclosed area subject to flooding.
2. Total Net Area . The total net area of all flood openings must be at least one (1) square inch for each square foot of enclosed area subject to flooding.
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