You may be fined $750 for not closing a gate crossing over a road, river, stream, or ditch.

6-9-202. Neglect to close fences; penalty.

A person is guilty of a misdemeanor punishable by a fine of not more than seven hundred fifty dollars ($750.00) if he opens and neglects to close a gate or replace bars in a fence which crosses a private road or a river, stream or ditch.