§ 11-25. Standards for shallow flooding zones.

Located within the areas of special flood hazard established in article III, sections 11-9, are areas designated as shallow flooding areas. These areas have flood hazards associated with base flood depths of one (1) to three (3) feet, where a clearly defined channel does not exist and the water path of flooding is unpredictable and indeterminate; therefore, the following provisions, in addition to the standards of article V, sections 11-22 and 11-23 apply:

(1)

All new construction and substantial improvements of residential structures shall:

Have the lowest floor, including basement, elevated to or above the highest adjacent grade at least as high as the depth number specified in feet on the flood insurance rate map. If no depth number is specified, the lowest floor, including basement, shall be elevated to no less than two (2) feet above the highest adjacent grade.

(2)

All new construction and substantial improvements of non-residential structures shall:

a.

Have the lowest floor, including basement, elevated to or above the highest adjacent grade at least as high as the depth number in feet on the flood insurance rate map. If no depth number is specified, the lowest floor, including basement, shall be elevated to no less than three (3) feet above the highest adjacent grade.

b.

Together with attendant utility and sanitary facilities be completely floodproofed to or above the highest adjacent grade at least as high as the depth number in feet specified on the FIRM plus a minimum of one (1) foot so that any space below that level is watertight with walls substantially impermeable to the passage of water and with structural components having the capability of resisting hydrostatic and hydrodynamic loads and effects of buoyancy. Certification is required as stated in article V, section 11-23(2).

(3)

Adequate drainage paths shall be established around structures on slopes to guide floodwaters around and away from proposed structures.

(Ord. of 2-2-10(1), § 2)