ORDINANCES & RESOLUTIONS 2011 - Laserfiche WebLink

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(4) Elevated Structures. New construction or substantial improvements of elevated structures shall have the lowest floor at or above the FPG. Elevated structures-with fully enclosed areas formed by foundation and other exterior walls below the flood protection grade shall be designed to preclude finished living space and designed to allow for the entry and exit of floodwaters to automatically equalize hydrostatic flood forces on exterior walls. Designs must meet the following minimum criteria: a). provide a minimum of two (2) openings located in a minimum of two (2) exterior walls (having a total net area of not less than one square inch [1 sq. in.] for every one square foot [1 sq. ft.]of enclosed area); and b). the bottom of all openings shall be no more than one foot(1')above the exterior grade or the interior grade immediately beneath each opening,whichever is higher;and, c). openings may be equipped with screens, louvers, valves or other coverings or devices provided they permit the automatic flow of floodwaters in both directions; and d). access to the enclosed area shall be the minimum necessary to allow for parking for vehicles (garage door) or limited storage of maintenance equipment used in connection with the premises (standard exterior door)or entry to the living area (stairway or elevator); and e). the interior portion of such enclosed area shall not be partitioned or finished into separate rooms;and f). the interior grade of such enclosed area shall be at an elevation at or higher than the exterior grade; and S g). where elevation requirements exceed six feet (6') above the highest adjacent grade, a copy of the legally recorded deed restriction prohibiting the conversion of the area below the lowest floor to a use or dimension contrary to the structure's originally approved design, shall be presented as a condition of issuance of the final Certificate of Occupancy. (5) Structures Constructed on Fill. A residential or nonresidential structure may be constructed on a permanent land fill in accordance with the following: a). The fill shall be placed in layers no greater than one foot (1') deep before compacting to ninety-five percent (95%) of the maximum density obtainable with either the Standard or Modified Proctor Test method. b). The fill should extend at least ten feet (10') beyond the foundation of the structure before sloping below the FPG. Sc). The fill shall be protected against erosion and scour during flooding by vegetative cover, riprap, or bulkheading. If vegetative cover is used, the slopes shall be no steeper than three (3) horizontal to one(1)vertical. d). The fill shall not adversely affect the flow of surface drainage from or onto neighboring properties. e). The top of the lowest floor including basements shall be at or above the FPG. (6) Standards for Manufactured Homes and Recreational Vehicles. Manufactured homes and recreational vehicles to be installed or substantially improved on a site for more than one hundred eighty (180)days must meet one (1)of the following requirements: Page 16 of 22