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	Title:	Subject.TGM:	Description:

401.	BP Bridge, outline in rebar, May 9, 2003	Sheds; Skyscrapers; Pails;	The path of the BP Bridge was outlined in rebar, or reinforcing bar, which was later cast in concrete. The orange caps atop the rebar spikes were for worker safety. A temporary wooden shed blocks part...

402.	BP Bridge, outline in rebar, May 9, 2003	Trailers; Hoisting machinery; Skyscrapers; Cantilever construction;	The path of the BP Bridge was outlined in rebar, or reinforcing bar, which was later cast in concrete. The orange caps atop the rebar spikes were for worker safety. The trailer compound in the background...

403.	BP Bridge, outline in rebar, May 9, 2003	Sheds; Construction equipment;	The path of the BP Bridge was outlined in rebar, or reinforcing bar, which was later cast in concrete. The orange caps atop the rebar spikes were for worker safety. Built atop two stories of parking garages...

404.	BP Bridge, outline in rebar, May 9, 2003	Skyscrapers; Trailers; Trees;	The path of the BP Bridge was outlined in rebar, or reinforcing bar, which was later cast in concrete. The orange caps atop the rebar spikes were for worker safety. Buildings visible in the background...

405.	BP Bridge, paneling and subframing, January 9, 2004	Structural frames; Snow; Construction workers; Trees;	View of paneling on the exterior side of the BP Bridge. The stainless steel shingles, or "scales", will be applied directly to the layer of paneling. Subframing for the interior sides of the Bridge is...

406.	BP Bridge, paneling and subframing, January 9, 2004	Structural frames; Snow; Trees;	Paneling and subframing covers the sides of the BP Bridge's curves prior to the addition of the stainless steel shingles, or "scales".

407.	BP Bridge, paneling, February 13, 2004	Structural frames; Scaffolding; Skyscrapers; Marks (Symbols);	Paneling has been added to the subframing on the underside of the span of the BP Bridge during construction. The stainless steel shingles, or "scales", will be installed on top of this paneling.

408.	BP Bridge, paneling, February 13, 2004	Snow; Wheelbarrows; Skyscrapers; Hoisting machinery; Trees;	Paneling covers the sides of the BP Bridge's serpentine curves prior to the addition of the stainless steel shingles, or "scales".

409.	BP Bridge, paneling, February 13, 2004	Hoisting machinery; Construction workers; Structural frames; Skyscrapers; Trees;	Paneling has been added to the subframing on the underside of the span of the BP Bridge during construction. The stainless steel shingles, or "scales", will be installed on top of this paneling. The top...

410.	BP Bridge, pedestal surrounding pier, December 31, 2003	Streets; Pails;	Close-up view of formwork for an almond-shaped pedestal around the base of the Bridge's pier, or support column, located on the median strip in the center of Columbus Drive.

411.	BP Bridge, pedestal surrounding pier, January 9, 2004	Pedestals; Streets;	Close-up view of the almond-shaped concrete pedestal around the base of the pier, or support column, for the Bridge, located on the median strip in the center of Columbus Drive.

412.	BP Bridge, pedestal surrounding pier, January 9, 2004	Streets; Pedestals; Automobiles;	Close-up view of the almond-shaped concrete pedestal around the base of the pier, or support column, for the Bridge, located on the median strip in the center of Columbus Drive.

413.	BP Bridge, pedestal surrounding pier, January 9, 2004	Pedestals; Scaffolding; Streets; Hoisting machinery;	Profile view of the almond-shaped concrete pedestal around the base of the pier, or support column, for the Bridge, located on the median strip in the center of Columbus Drive.

414.	BP Bridge, pedestal surrounding pier, January 9, 2004	Abutments; Hoisting machinery; Pedestals;	Close-up view of the almond-shaped concrete pedestal around the base of the pier, or support column, for the Bridge, located on the median strip in the center of Columbus Drive. A concrete abutment and...

415.	BP Bridge, pier, February 13, 2004		Close-up view of the concrete pier that supports the Bridge's span from below.

416.	BP Bridge, pier, June 22, 2004	Streets; Plants;	View of the concrete pier beneath the span of the BP Bridge on the median strip of Columbus Drive.

417.	BP Bridge, pier, June 22, 2004	Streets; Plants;	View of the concrete pier beneath the span of the BP Bridge on the median strip of Columbus Drive.

418.	BP Bridge, pier, October 17, 2003	Streets; Construction workers; Cantilever construction; Scaffolding; Hoisting machinery; Skyscrapers; Lampposts;	View of the Bridge's central pier, or support column, on the median strip in the center of Columbus Drive. Structural steel for the headdress of the Jay Pritzker Pavilion is visible in the background.

419.	BP Bridge, pile-driving rig, May 9, 2003	Garages; Ladders; Pile drivers;	Machinery used to drill micropiles into place to support the BP Bridge from the garage below. The micropiles support the central pier on the median strip of Columbus Drive and extend through the garage...

420.	BP Bridge, rebar for pier, September 12, 2003	Streets; Scaffolding; Skyscrapers;	Rebar for BP Bridge's central pier, or support column, on the median strip in the center of Columbus Drive. Pieces of formwork for the pier are visible on the ground nearby. Structural steel for the western...