The commissioner of highways shall properly maintain, repair, operate, manage, and control the bridges owned by the state, fix the rates of tolls and establish bylaws and rules and regulations for the use and operation of the bridges owned by the state, and may make and enter into all contracts or agreements necessary and incidental to the performance of his duties and the execution of his powers under this article, including power to permit use of such bridges owned by the state by street railways and other transportation lines, and telephone, telegraph, pipe, and other lines, and contract with them for such use and fix the terms and conditions thereof and the charges or tolls for such use of the bridges owned by the state.
