Michigan Avenue Bridge

bridge in Chicago, Illinois

The Michigan Avenue Bridge (officially DuSable Bridge) is a bascule bridge that carries Michigan Avenue across the main stem of the Chicago River in downtown Chicago, Illinois, United States. Construction of the bridge started in 1918, it opened to traffic in 1920, and decorative work was completed in 1928.

Michigan Avenue Bridge
Michigan Avenue Bridge viewed from the west
Coordinates41°53′20″N 87°37′28″W / 41.88886°N 87.62436°W / 41.88886; -87.62436
CarriesMotor vehicles, pedestrians
CrossesChicago River
Official nameDuSable Bridge
Heritage statusChicago Landmark
ID number000016612026812
DesignDouble-leaf, double-deck, fixed counterweight, trunnion bascule bridge
Total length399 feet (122 m)[1]
Width91.75 feet (27.97 m)[2]
Longest span256 feet (78 m) between trunnions
220 feet (67 m) between piers[3]
Clearance below16 feet (4.9 m)
DesignerBureau of Engineering, Chicago Department of Public Works
Construction startApril 15, 1918[4]
Construction end1920
OpenedMay 14, 1920[4]
Daily traffic37900 (upper deck)
11700 (lower deck)[5]


  1. Holth, Nathan. "Michigan Avenue Bridge". HistoricBridges.org. Retrieved September 19, 2010.
  2. Scott, Charles; Alexander, Frances; Nicolay, John; Brucken, Carolyn. "Chicago River Bascule Bridge, Michigan Avenue". Historic American Engineering Record. Library of Congress. Retrieved September 19, 2010.
  3. Young 1920, p. 508
  4. 4.0 4.1 ""I Will" Spirit Wins; Open Link Bridge Today". Chicago Tribune. May 14, 1920. p. 3.
  5. 2010 data from the National Bridge Inventory Database. "National Bridge Inventory". U.S. Department of Transportation Federal Highway Administration. Retrieved 2012-04-04.

Other websites


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