The joint commission in its discretion may provide and equip any such bridge and the approaches appurtenant thereto with such conduits, pipes, supplies and other appliances as may be necessary or convenient for the installation, maintenance and operation of telegraph, telephone, electric light or power, and other public service facilities.

It may enter into leases or contracts with public service companies for the installation, maintenance, operation and use of such facilities, and fix and collect suitable charges, rents, rentals or tolls for the privilege of leasing, operating, using or maintaining such facilities.