The governing bodies of cities and towns having populations greater than 3,500 and the Commissioner of Highways may enter into agreements, upon such terms and conditions as may be necessary, for the maintenance of public highway bridges or tunnels lying partly within and partly outside the incorporated limits of such cities and towns.

The Commissioner of Highways may enter into agreements with other states and the District of Columbia, upon such terms and conditions as may be necessary, for the maintenance and operation, including the issuance of permits, of public highway bridges or tunnels lying partly within and partly outside the territorial limits of the Commonwealth.