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	Title:	Subject.TGM:	Description:

461.	Cloud Gate, SBC Plaza, March 16, 2004	Construction workers; Structural systems; Trusses; Snow; Skyscrapers; Trees; Lampposts;	The southeast corner of SBC Plaza before the concrete surface was poured. The Art Institute of Chicago is visible in the background.

462.	Cloud Gate, SBC Plaza, March 16, 2004	Trusses; Construction equipment; Concrete mixers; Construction workers; Snow; Trees;	A concrete pump truck near SBC Plaza. The trellis of the Pritzker Pavilion is visible in the background.

463.	Cloud Gate, SBC Plaza, March 16, 2004	Concrete; Construction workers; Snow; Shovels; Trees; Lampposts;	Workers level wet concrete over the rebar as it is pumped into SBC Plaza.

464.	Cloud Gate, SBC Plaza, March 16, 2004	Concrete; Construction workers; Snow; Shovels; Trees; Lampposts;	Workers use screeds, or flat boards, to shape freshly poured concrete into a flat surface at SBC Plaza.

465.	Cloud Gate, SBC Plaza, March 16, 2004	Concrete; Construction workers; Trees;	Workers use various tools to level and smooth wet concrete at SBC Plaza.

466.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Trusses; Snow; Concrete mixers; Construction workers; Trees;	Close-up view of the base of the sculpture before concrete is poured.

467.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Trusses; Steel; Snow; Skyscrapers; Trees; Lampposts;	Looking northeast toward SBC Plaza and the structural steel of the sculpture.

468.	Cloud Gate, SBC Plaza, March 16, 2004	Construction workers; Snow; Skyscrapers; Structural systems; Trusses; Lampposts;	Looking northwest toward SBC Plaza. A network of rebar stretches across the Plaza.

469.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Trusses; Snow; Construction workers; Concrete mixers; Skyscrapers; Lampposts;	Close-up view of the base of the sculpture before concrete is poured. A network of rebar stretches across the Plaza.

470.	Cloud Gate, SBC Plaza, March 16, 2004	I-beams; Structural systems; Snow;	Close-up view of the base of the sculpture before concrete is poured.

471.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Snow;	Close-up view of rebar at SBC Plaza during its construction. Rebar, or reinforcing bar, is put in place before the concrete is poured. The resulting reinforced concrete is stronger and more durable than...

472.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Snow;	Close-up view of rebar at SBC Plaza, along the base of the partially built sculpture. Rebar, or reinforcing bar, is put in place before the concrete is poured. The resulting reinforced concrete is stronger...

473.	Cloud Gate, SBC Plaza, March 16, 2004	I-beams; Structural systems; Snow;	Close-up view of rebar below the base of the sculpture.

474.	Cloud Gate, SBC Plaza, March 16, 2004	I-beams; Structural systems; Snow;	Close-up view of rebar below the base of the sculpture.

475.	Cloud Gate, SBC Plaza, March 16, 2004	I-beams; Structural systems; Snow;	Close-up view of rebar below the base of the sculpture.

476.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Trusses; Snow; Construction workers; Skyscrapers; Trees; Lampposts;	View of the south end of SBC Plaza under construction, before the concrete was poured. Crown Fountain, the Art Institute of Chicago, and the Michigan Avenue street wall are visible in the background.

477.	Cloud Gate, SBC Plaza, March 16, 2004	Construction workers; Construction equipment; Snow; Trees; Lampposts;	View of the southeast corner of SBC Plaza under construction before the concrete was poured.

478.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Trusses; Snow; Skyscrapers; Trees; Lampposts;	View of the south end of SBC Plaza under construction, before the concrete was poured, and the structural steel of the sculpture. The Michigan Avenue street wall is visible in the background.

479.	Cloud Gate, SBC Plaza, March 16, 2004	Structural systems; Trusses; Steel; Construction workers; Snow; Skyscrapers; Trees; Lampposts;	Looking south toward the structural steel of the sculpture and SBC Plaza under construction.

480.	Cloud Gate, SBC Plaza, March 16, 2004	Construction workers; Snow; Construction equipment; Skyscrapers; Trees;	Stacks of lightweight poly-foam fill blocks are lined up along the side of SBC Plaza. Pritzker Pavilion is visible in the background.