About the Hyde Park River Street Bridge repair

Learn more about our efforts to repair the existing bridge.

Repairs completed in 2024 involved the following elements:

• Removal of the asphalt riding surface to access supporting members.
• Installation of support brackets to relocate catenary (Amtrak locomotive power cables).
• Demolition and removal of the deck pans (components which rest between the floor beams and stringers and help support the roadway deck) and stringers (components which connect the bridges floor beams and help support the roadway deck).
• Repaired the abutments (granite structures on which the bridge’s metal girders rest) at either end of the bridge.
• Repaired four the bridge’s eight floor beams and replaced the other four.
• Replaced all fifty-three of the bridge’s stringers.
• Replaced all fourteen of the bridge bearings which connect the metal girders to the abutments.
• Replaced all the deck pans.
• Repaired the bottom chord of the bridge’s truss. The trusses are the parallel structures visible above the deck or driving and walking surface of the River Street Bridge. The bottom chord is the portion of the truss below the deck.
• Reconstructed the bridge’s deck, installing new sidewalks and an asphalt riding surface.
• Reestablished pavement markings to serve through traffic at the intersections of River Street/Hyde Park Avenue

For more information about the repairs, please see MassDOT meeting presentation - Hyde Park (Boston) 03/07/23