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Photographer
Unknown (3)

Neighborhood
Loop (Chicago, Ill.) (3)

Subject.TGM
Hoisting Machinery (1)
Milling Machines (1)
Scaffolding (1)
Steel (1)
Structural Frames (1)
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 Image: Title: Subject.TGM: Description:
1. Cloud Gate, fabrication, milling, April 22, 2003 Cloud Gate, fabrication, milling, April 22, 2003 Steel; Milling machines; Machine-milling a steel plate.
2. BP Bridge, spanning Columbus Drive, November 22, 2003 BP Bridge, spanning Columbus Drive, November 22, 2003 Girders; Scaffolding; Construction workers; Hoisting machinery; Securing two box girders together to form part of BP Bridge's span. Columbus Drive was closed to traffic for a 12-hour period as workers installed three box girders making up BP Bridge's span.
3. BP Bridge, waterproofing, January 9, 2004 BP Bridge, waterproofing, January 9, 2004 Structural frames; Applying waterproofing to the concrete foundation ramp of the BP Bridge.
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