9-2-4: CULVERTS; DIMENSION REQUIREMENTS:
Culverts in highway ditches shall be not less than twelve inches (12") in diameter and such greater diameter as may be determined necessary for the location by the superintendent of public works.
Culverts under driveways shall be constructed of reinforced concrete or corrugated steel. Culverts shall be at least twelve feet (12') in length. (Ord. 446, 11-12-1958)