Mich. Comp. Laws § 254.22: Bridge over navigable stream; construction and maintenance.

Sec. 22.

Bridges over any navigable streams shall be so constructed as not to prevent or hinder the navigation of such streams by the usual crafts plying thereon. All such bridges shall be so constructed and maintained as not to interfere with the ordinary uses of said streams for driving logs or floating other materials or boats therein, and shall be constructed and maintained so as to offer and afford reasonable, adequate and proper means for the passage of boats, vessels, sawlogs, floating timber and rafts through the same.