Wyo. Stat. § 31-18-702: General liability.

Any person operating, driving or moving any commercial vehicle, object or contrivance over a street, highway or bridge is liable for all damages which the street, highway, bridge or appurtenances thereto or other structures in connection therewith, may sustain, as a result of any illegal or negligent operation or as a result of operating, driving or moving any commercial vehicle, object or contrivance in excess of the maximum weight or height specified and prescribed by law although authorized by a special permit issued as provided by law.