Adams Street Bridge, Metal bascule bridge in downtown Chicago, United States
Adams Street Bridge is a metal bascule bridge crossing the South Branch of the Chicago River in downtown Chicago. It features a double-leaf design that swings open for boat traffic, with a deck approximately 60 meters (200 feet) long.
The bridge was built in 1927 to replace an older swing structure that had served the city after the Great Fire of 1871. This evolution reflects Chicago's ongoing efforts to improve its river crossings and accommodate growing traffic needs.
The bridge reflects Chicago's identity as a city that learned to build around water traffic and navigation needs. Visitors can sense how the river remains central to the urban rhythm, with the structure serving both vehicles and boats daily.
Pedestrians and vehicles can cross at any time, but the bridge periodically closes to allow river traffic to pass through. It helps to be aware that crossings may be delayed when boats need to use the river, so plan extra time if crossing during active river hours.
The structural trusses of this bridge sit completely beneath the deck rather than above it, which is different from many other bascule bridges. This design choice creates an open sightline for anyone crossing, offering unobstructed views of the river and surrounding cityscape.
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