(1) The legislature, for and on behalf of the state, assents to the provisions of Title 23, U.S.C.
(2) The department may, for and on behalf of the state, enter into all contracts and agreements with the United States or any officer, department, or bureau thereof relating to the construction, reconstruction, repair, and maintenance of highways in the state.
(3) The department may make all rules necessary to comply with the provisions of the laws assented to and all other laws granting aid for public highways and to obtain for the state the full benefits of such laws.
(4) The department may do all other things necessary or required to carry out fully the cooperation contemplated by the acts of congress assented to.