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Attleboro Steel Bridge Replacement Route 1A over MBTA/Amtrak Railroad and Access Road

Project Manager: Joseph Gioioso
Engineer: AECOM
Client: Massachusetts Highway Department
Construction Cost: $8,800,000
Construction Schedule: April 2008 - August 2011

The project consisted of the demolition and replacement of the Route 1A bridge in South Attleboro, at the state border with Pawtucket, RI. The bridge spans over 3 major obstacles: the electrified Amtrak rail line, the MBTA commuter railroad station, and the Access Road to the adjacent shopping center. The existing 3-span bridge, built in 1931, had a rating of only 18 tons and the 4 travel lanes were only 10 feet wide. The 3 phase reconstruction required substantial support of excavation and selective demolition in order to maintain all travel lanes on the bridge and all train/vehicle flow below the bridge. The new single-span bridge is 90 feet long and 85 feet wide and contains over 2,500 cy of cast-in-place concrete. The new roadway work provided improved lane widths, sight distances, and turning lanes for the 33,000 daily vehicle volume