(1) The Department of Transportation may enter into contracts with counties and municipalities to perform routine maintenance work on the State Highway System within the appropriate boundaries.
(2) Each county or municipality which completes the work described in subsection (1) shall be relieved from any tort liability arising after completion of such work if the completed project conforms to the standards of the contract as agreed to by the department.
(3) Each county or municipality shall be entitled to receive payment or reimbursement from the department, in accordance with the contract, if the work is completed to the standards of the contract as agreed to by the department.
(4) Nothing contained in this section shall impair, suspend, contract, enlarge, extend, or affect in any manner the powers and duties of the department.