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<br />(5) Construction materials and methods. <br /> <br />(a) All new construction and substantial improvements shall <br />be constructed with materials and utility equipment <br />resistant to flood damage. <br /> <br />(b) All new construction and substantial improvements shall <br />be constructed using methods and practices that <br />minimize flood damage. <br /> <br />(c) Where fill is utilized as a method of elevation of a <br />structure. such fill shall extend fifteen (15) feet <br />beyond the exterior walls of the structure. <br /> <br />(6) Mechanical and utility equipment. Electrical, heating, <br />ventilation, plumbing and air-conditioning equipment and <br />other service facilities shall be designed and/or located so <br />as to prevent water from entering or accumulating within the <br />components during conditions of flooding. <br /> <br />B. Specific standards, In all areas of special flood hazard where base <br />flood elevation data has been provided, such as Zone AS. the <br />following provisions are required: <br /> <br />(1) Residential construction. New construction and substantial <br />improvement of any residential structure shall have the <br />lowest floor, including the basement, elevated to or above <br />base flood elevation. Within any A Zone on the FIRM, all new <br />construction and substantial improvements of residential <br />structures shall have the lowest floor, including the <br />basement, elevated above the highest adjacent grade as high <br />as the depth number specified in feet on the FIRM and at <br />least two (2) feet if no depth number is specified. Within <br />any A Zone, adequate drainage paths around structures on <br />slopes shall be provided to guide floodwaters around and away <br />from proposed structures. <br /> <br />(2) Nonresidential construction. <br /> <br />(a) New construction and substantial improvement of any <br />commercial, industrial or other nonresidential <br />structure shall either have the lowest floor, including <br />the basement, elevated to the level of the base flood <br />elevation or, together with attendant utility and <br />sanitary facilities, shall: <br /> <br />(1) Be floodproofed so that below the base flood level <br />the structure is watertight with walls substantially <br />impermeable to the passage of water. <br /> <br />(2) Have structural components capable of resisting <br />hydrostatic and hydrodynamic loads and effects of <br />buoyancy. <br /> <br />(3) Be certified by a registered professional engineer <br />or architect, licensed in the State of Colorado, that <br />the standards of this subsection are satisfied. <br /> <br />Page 12 <br />