The New Chain of Rocks Bridge, which connects I-270 between Missouri and Illinois, is now open to two lanes in each direction after years of bi-state cooperation. Officials announced the completion Monday morning at a press conference held on the bridge.
Construction on the bridge, which spans from North St. Louis to Granite City, began in February 2023.
Construction costs totaled $532 million, including a $35.4 million interchange just west of the bridge and $496.2 million for the bridge itself. Funding was shared by both states, with all of Illinois’ funds coming from Rebuild Illinois, a program that uses tax revenue from increased fuel, vehicle registrations, and truck registration fees to improve state infrastructure…