Wisconsin Statutes Fences (Ch. 90) § 90.035. Public fences

Where the 2 parties, one of whom is the state or a subdivision thereof, agree that a fence is reasonably necessary, the duty to erect and maintain partition fences shall apply equally to the state, as provided in s. 90.03, and its subdivisions as occupants of lands whenever such lands are bounded by privately owned agricultural or grazing lands.