(A) All streets shall be designed so as to provide for the discharge of surface water from the pavement and from the right-of-way by grading and drainage. For adequate drainage, the minimum street grade shall not be less than 0.5%. The city shall not approve streets which will be subject to inundation or flooding. All streets must be located at elevations which will make them flood-free in order that portions of the subdivision will not be isolated by floods.
(B) Where flood conditions exist, the city shall require profiles or elevations of streets in order to determine the advisability of permitting the proposed subdivision activity. Fill may be used in areas subject to flooding in order to provide flood-free streets if the fill does not increase flood heights. Drainage openings shall be designed so as not to restrict the flow of water and thereby increase flood height.
(Prior Code, § 7.7)