Mo. Rev. Stat. § 391.130: May construct and operate street railways over bridges connecting any city in this state with any city of an adjoining state.

Any company owning, leasing, operating or controlling a bridge connecting any city, town or village in this state, with any city, town or village of any adjoining state, may lease, own, construct and operate a street railway over such bridge and in such cities, towns or villages and counties in which same may be situated, and in adjoining counties, and may also acquire and hold stock and guarantee bonds of any company operating such street railway or railways.