gmo43 located a permit for a new supercharger in Chicago. The location is "New City", a new apartment / retail development at 1457 North Halsted Street. Electrical wiring permit number 100733296, for "TESLA SUPERCHARGING STATION ELECTRICAL SERVICE, FEEDER, AND CIRCUITS" was issued on November 10th. The Chicago permits database is here - I couldn't find any additional information.
1457 Halsted Street, Chicago IL 60642
1457 Halsted Street, Chicago IL 60642