(a) The ferries crossing the Connecticut River, known as the Rocky Hill ferry and the Chester and Hadlyme ferry, shall be maintained and operated by the Commissioner of Transportation at the expense of the state. The rates of toll or the charges to be made for travel upon said ferries shall be fixed by the commissioner with the approval of the Secretary of the Office of Policy and Management. The commissioner may establish a discounted commuter rate for travel upon said ferries.

(b) All expense of maintenance, repairs and operation of said ferries shall be paid by the Comptroller on vouchers of the commissioner. The commissioner shall include in his report to the General Assembly a report of the receipts and expenditures incidental to the control and maintenance of said ferries. Said Rocky Hill ferry shall be maintained as a state historic structure and shall be so marked with an appropriate plaque by the commissioner in cooperation with the Department of Economic and Community Development.