Iowa Code Title VIII. Transportation [Chs. 306-330B] § 320.8. Penalty

Failure to comply with any of the conditions of said grant, whether made such by statute or by agreement, or the laying of any such mains, or the constructing of any such cattleways, without having secured the grant of permission as provided by law shall be deemed a simple misdemeanor. It shall be the duty of the state department of transportation and of the board of supervisors, as regards the highways under their respective jurisdictions, to enforce the provisions of this section and the laws relating thereto.