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 Adams Street Bridge is a bridge over the Chicago River in downtown Chicago, Illinois. The sources consulted document only this basic fact and give no construction date, builder or predecessor structure, so the 1927 date and the 1871 swing-bridge story cannot be confirmed.

The bridge carries Adams Street across the Chicago River in downtown Chicago, linking the civic corridor around the county buildings on the west bank with the Loop. Its movable span opens so that boats on the river can pass, then closes again for road traffic.

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.