Chicago Avenue Bridge, Spanning North Branch of Chicago River at West Chi, Chicago, Cook County, IL
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Spanning North Branch of Chicago River at West Chi, Chicago, IL
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Documentation compiled after 1968.
Survey number HAER IL-144
Unprocessed field note material exists for this structure (N665).
Building/structure dates: 1914 initial construction
Significance: The Chicago Avenue bascule belonged to a set of Chicago city bridges built between 1910 and 1915 that augured in this transition in design from an earlier strictly utilitarian approach to one influenced by aesthetic concerns. Its design also incorporated several innovations that became standard features of the next generation of the "Chicago type" bascule bridge.
Byrne Brothers Dredging & Engineering Company
Keller & Elliot Company
City Of Chicago
Historic American Engineering Record (Library of Congress)
1. COUNTER WEIGHT TRUNION RACK AND PINION AND COUNTERWEIGHT.
2. STRUCTURAL VIEW OF BASCULE LEAF.
3. TRUNION FROM RIVER PIER.
4. DETAIL REDUCTION GEAR.
5. CONTROL ROOM CHICAGO AVENUE BRIDGE.
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