Any city, incorporated town or village may by ordinance duly passed grant to any commission or board having jurisdiction over parks and boulevards the right to take and improve by means of surface or elevated ways for vehicles and pedestrians a street or streets not more than one mile in length in any one instance, and for that purpose to construct, maintain and control all approaches, inclines and superstructures convenient or necessary for the purpose aforesaid.
65 ILCS 5/11-86-2