(1) The Department of Public Property may lease any City ducts, conduits, wires or other electrical conductors, which will not be needed for the period of the lease, to persons who have authority under special ordinance to lay, construct, string, maintain or use the class of ducts, conduits, wires or other electrical conductors being leased.[11]

(2) The annual charge for such lease is 9½ cents per foot for 2½ inch duct, and $60. for each mile of wire, or part thereof.