(A) General requirement. All land development shall be related to the surrounding drainage pattern, with provisions made for proper storm drainage facilities.
(50.40.10)
(B) Minimum runoff. Minimum runoff shall be determined by the Rational Method, or an equivalent formula with conventional runoff factors, using as a minimum a rainfall rate of two and one-half inches per hour.
(50.40.20)
(C) Water in stub streets and cul-de-sacs. In all instances, provisions shall be made for adequate storm drainage and drainage structures to prevent water from standing in the ends of stub streets of cul-de-sacs.
(50.40.30)
(D) Diversion of water from natural course. Diversion of storm flow shall be avoided, if at all possible. If storm water is to be diverted from its natural course, the construction plans shall include:
(1) A sketch showing the existing waterway and the location of the proposed channel change;
(2) Profile of existing watercourse; and
(3) Provisions for sodding or paving to prevent soil erosion and silting in open watercourses.
(50.40.40)
(E) Emergency overflow. Where an underground drainage system is installed, emergency surface drainage overflows shall be provided to prevent possible flooding in the event of failure of the underground drainage system.
(50.40.50)
(Prior Code, Appendix A, § 50.40) (Ord. 703, passed 3-15-1971)