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Chicago River Bascule Bridge, LaSalle Street, Spanning Chicago River at North LaSalle Street, Chicago, Cook County, IL



B&W Photos

HB449700
General View Of North End; City Of Chicago Central Office Building (1913) Seen In Center

HB449701
South Bridge Tower With Bridge Looking Northeast From Southwest

HB449702
Detail Of East Bridge Tower

HB449703
Detail Of Railing

HB449704
Detail Of Truss With Bridge Tower In Background, Looking West


Data Pages


Drawings


Photo Caption Pages


Item Title


Location
Spanning Chicago River at North LaSalle Street, Chicago, IL

Find maps of Chicago, IL


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER IL-66
Unprocessed field note material exists for this structure (N664).
Building/structure dates: 1928 initial construction
Significance: The development of the Chicago trunnoin bascule bridge occurred during the first three decades of the twentieth century. Despite the controversy over patent infringement -- Joseph E. Strauss charged the City of Chicago engineers with infringing on his patented Strauss-Trunion bascule bridge -- the Chicago bascule received great acclaim within the civil engineering profession. The LaSalle Street Bridge was erected in the late 1920s after Chicago's city engineers had refined their design of the trunion bascule span.

Subjects
Beaux-Arts Architectural Elements
Bridges


Related Names
Becker, Donald
Pihlfeldt, Thomas G.
Strobel Steel Construction Company
Hassey, Karen L., Field Team
Lowe, Jet, Photographer
Sneddon, Matthew T., Historian


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. GENERAL VIEW OF NORTH END; CITY OF CHICAGO CENTRAL OFFICE BUILDING (1913) SEEN IN CENTER
2. SOUTH BRIDGE TOWER WITH BRIDGE LOOKING NORTHEAST FROM SOUTHWEST
3. DETAIL OF EAST BRIDGE TOWER
4. DETAIL OF RAILING
5. DETAIL OF TRUSS WITH BRIDGE TOWER IN BACKGROUND, LOOKING WEST


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