(A) The design of storm drainage systems in the city shall generally conform to the standards outlined in the current State Department of Transportation Drainage Manual and to accepted engineering practice.
(B) Storm sewer systems shall be designed to accommodate a flow of not less than a Q5.
(C) Materials for drainage systems shall meet all state department of transportation requirements.
(D) A subdrain system shall be installed in all areas where possible. A
SUBDRAIN SYSTEM is defined as an underground drainage system designed to reduce or eliminate the presence of excessive amounts of ground water.
(E) The hydraulic capacity of all natural waterways shall be substantially maintained and in no case shall their capacity be reduced below a Q100 flow. All state and federal flood regulations shall be complied with.
(F) The provisions of Chapter 53 of this code shall be strictly adhered to in the design, construction and maintenance of all drainage works.
(Prior Code, § 18.1-14) (Ord. 556, passed - -; Ord. 748, passed - -)