No person, firm, or corporation shall build or maintain a driveway over any drainage ditch unless a culvert is provided at the owner's expense, adequate to permit the uninterrupted flow of storm water along the ditch. No such culvert shall have a diameter of less than ten inches, and a larger culvert shall be installed where required to permit the adequate flow of storm water.
('77 Code, § 99.026) Penalty, see § 10.99