Chicago River Bascule Bridge, LaSalle Street, Spanning Chicago River at North LaSalle Street, Chicago, Cook County, IL
Photo Caption Pages
Spanning Chicago River at North LaSalle Street, Chicago, IL
Find maps of Chicago, IL
Documentation compiled after 1968.
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.
Beaux-Arts Architectural Elements
Pihlfeldt, Thomas G.
Strobel Steel Construction Company
Hassey, Karen L., Field Team
Lowe, Jet, Photographer
Sneddon, Matthew T., Historian
Historic American Engineering Record (Library of Congress)
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
Back to Chicago, Illinois