When drainage channels intersect any street right of way, it shall be the responsibility of the subdivider to have satisfactory bridges and culverts designed and constructed. Where culverts are required, the following minimum requirements shall be observed:
(a) All culverts for drainage courses shall extend across the entire right-of-way width of the proposed road. The diameter of a culvert pipe shall be determined by the Engineer but in no case shall be less than eighteen inches. Head walls may be required depending on existing drainage.
(b) Driveway culverts shall have a minimum length of twenty feet. The minimum diameter of driveway culverts shall be determined by the Engineer but in no case shall be less than twelve inches. The driveway culverts shall be laid so as to maintain the flow line of the ditch. Head walls may be required.
(Ord. 77-55. Passed 9-6-77.)