Constructed in 1975 on the site of the old Federal Building. This 545-foot, 45-story building was named for Congressman John Kluczynski. Offices occupy floors 2-39 with the top six floors housing mechanical equipment.
Wikipedia article:
http://en.wikipedia.org/wiki/Kluczynski_Federal_BuildingCategory:
administrative building government Address:
Dearborn Street, 230 S