(A) The surface of streets may be used for drainage and flood control purposes, to the extent such use does not interfere with the safe transportation of people and vehicles.
(B) The 100-year design storm runoff shall not exceed the top of curb or the right-of-way in a sump condition, in any street nor enter private property from a street, except in recorded drainage or flood control easements, rights-of-way, or historic channels and watercourses where easements or rights-of-way cannot be obtained.
(C) The 10-year design storm runoff shall not exceed a depth of 0.5 feet in any arterial street and shall flow such that one driving lane in each direction is free of flowing or standing water. The 10-year design storm runoff shall not exceed a depth of 0.5 feet in any collector street. Arterial and collector streets that are in the state highway system may require more stringent drainage criteria.
(D) The product of depth times velocity shall not exceed 6.5 at any location in any street in the event of a 10-year design storm (with velocity calculated as the average velocity measured in feet per second and depth measured at the gutter flow line in feet).
(E) The discharge of nuisance waters to public streets is prohibited. Arterial and collector streets shall be protected from damages to the pavement surface and from the safety hazards created by surface flow of nuisance waters across them.
(F) All developed land within the city shall be served by at least one access that shall be an all-weather facility during a 100-year design storm, with all channel-crossing structures beneath the roadway being able to pass a 100-year design storm runoff event.
('74 Code, § 7-9-7) (Ord. 63- 1982; Am. Ord. 2013-016; Am. Ord. 2018-020)