Willis Tower (formerly Sears Tower)

Fabricated and erected 78,000 tons of structural steel for the tallest building in the United States, a series of bundled steel tubes.

Project Details

  • Owner: Sears Roebuck & Co.
  • Location: Chicago, Illinois, United States
  • Performed as: American Bridge Company
  • Project value: $47,239,301.00
  • Completion Date: October 1973