Residential or non-residential buildings can meet the building protection requirements by one of the following methods: (See NFIP requirements: 44 C.F.R. § 60.3(c)(2).)
(A) The building may be constructed on permanent landfill in accordance with the following:
(1) The lowest floor (including basement) shall be at or above the flood protection elevation;
(2) The fill shall be placed in layers no greater than one foot before compaction and should extend at least ten feet beyond the foundation before sloping below the flood protection elevation;
(3) The fill shall be protected against erosion and scour during flooding by vegetative cover, riprap or other structural measure;
(4) The fill shall be composed of rock or soil and not incorporated debris or refuse materials; and
(5) The fill shall not adversely affect the flow of surface drainage from or onto neighboring properties.
(B) The building may be elevated in accordance with the following: (See: NFIP requirements: 44 C.F.R. § 60.3(a)(3) and (c)(5).)
(1) The building or improvements shall be elevated on stilts, piles, walls or other foundation that is permanently open to flood waters;
(2) The lowest floor and all electrical, heating, ventilating, plumbing and air conditioning equipment and utility meters shall be located at or above the flood protection elevation;
(3) If walls are used, all fully enclosed areas below the base flood elevation shall address hydrostatic pressures by having a minimum of two permanent openings no more than one foot above grade and providing a total net area of not less than one square inch for every one square foot of enclosed area subject to flooding below the base flood elevation;
(4) The foundation and supporting members shall be anchored and aligned in relation to flood flows and adjoining structures so as to minimize exposure to hydrodynamic forces such as current, waves, ice and floating debris;
(5) All structural components below the flood protection elevation shall be constructed of materials resistant to flood damage;
(6) Water and sewer pipes, electrical and telephone lines, submersible pumps and other service facilities may be located below the flood protection elevation; provided, they are water- proofed; and
(7) No area below the flood protection elevation shall be used for storage of items or materials.
(Prior Code, § 14-1-7)