(A) The ground floor level of all buildings, building enlargements, or extensions of structures shall be at a minimum elevation of 12½ feet based on city datum. In addition, the site shall be graded to drain to the adjacent design finish grade of streets or alleyways.
(B) Exceptions.
(1) The provisions of this section shall not apply to general areas protected by dikes, if approved by the Building Official and Director of Public Works or to areas where the existing ground elevation exceeds 12½ feet based upon city datum. This section shall not be construed to be applicable to dikes for individual properties.
(2) In areas where a setback from property lines is not required and is not proposed, the ground floor level of all buildings, building enlargements or extensions of structures may be reduced upon documentation that flooding to the building and adjacent property as a result of the development will not occur as prepared by a registered civil engineer and approved by the Building Official and Director of Public Works. In no event, however will the ground floor level be less than an elevation of 11 feet based on city datum.
(3) Exceptions may be granted upon documentation of adequate measures to preclude flooding to the subject property and adjacent properties. Documentation shall be provided by the Building Official and Director of Public Works.
(C) The provisions of this section shall not repeal by implication any of the requirements of § 153.10 of this title.
('63 Code, § 10-5.2919.3) (Ord. 519-C.S., passed 8-26-90; Am. Ord. 589-C.S., passed 2-21-95)