(A) Where natural drainage channels intersect any street right-of-way, it shall be the responsibility of the subdivider to have satisfactory bridges and/or culverts constructed.
(B) Where culverts are required, minimum requirements shall be observed as follows.
(1) All culverts shall extend across the entire right-of-way width of the proposed street. The cover over the culvert and its capacity shall be determined by the City Engineer. The minimum diameter of a culvert pipe shall be 18 inches. Depending on existing drainage conditions, head walls may be required.
(2) Driveway culverts shall have a minimum length of 20 feet and a minimum diameter of 18 inches. The driveway culverts shall be laid so as to maintain the flow lines of the ditch or gutter. Head walls may be required.
(Prior Code, § 9.6)