Rail Bridge Replacements
We’re replacing six bridges on various Commuter Rail lines as part of our work to modernize the system and make it safer for riders. These bridges were built in the early 1900s, and replacement is necessary to extend their service life and bring them into a state of good repair.
- Contract awarded: May 21, 2019
- Budget: $109 million (total cost for six bridge replacements)
- Status: Construction in progress
As of Spring 2023, the following bridges are near completion:
- Bacon Street Bridge – Framingham/Worcester Line
- Intervale Road Bridge – Framingham/Worcester Line
- High Line Bridge – Lowell Line
- Parker Street Bridge – Haverhill Line
- Lynn Fells Parkway Bridge – Haverhill Line
- Commercial Street Bridge – Newburyport/Rockport Line
Work is anticipated to continue on the High Line Bridge through Spring 2026.
Building a Better T
As part of our $9.6 billion, 5-year capital investment plan, we're renovating stations, modernizing fare collection systems, upgrading services for our buses, subways, and ferries, and improving the accessibility of the entire system.
Why These Bridges Are Part of the Same Project
We’re using a design-build contracting method for the six bridge replacements that are part of the MBTA Rail Bridge Replacement Project, which will:
- Reduce design and construction time
- Improve communication between the contractor and designer
- Provide a single point of responsibility for both the design and construction.
- Promote collaboration between engineers, the contractor, and MBTA staff
High Line Bridge
Project timeline: Fall 2019 – Spring 2026
We’re replacing the bridge that carries the Lowell Line over an access road, High Line, and the railroad yard in Somerville between North Station and West Medford.
Current work includes the construction of bridge approach structures.
Bacon Street Bridge
Project status: Complete as of May 2022
We replaced the bridge that carries the Framingham/Worcester Line over Bacon Street in Wellesley between Natick Center and Wellesley Square near Morses Pond.
Intervale Road Bridge
Project status: Complete as of May 2022
We replaced the bridge that carries the Framingham/Worcester Line over Intervale Road in Weston between Wellesley Farms and Auburndale near the Leo J. Martin Memorial Golf Course.
Parker Street Bridge
Project status: Complete as of June 2022
We replaced the bridge that carries the Haverhill Line over Parker Street in Lawrence near Lawrence Station.
Lynn Fells Parkway Bridge
Project status: Complete as of August 2022
We replaced the bridge that carries the Haverhill Line over Lynn Fells Parkway in Melrose between Melrose Cedar Park and Melrose Highlands.
Commercial Street Bridge
Project status: Complete as of February 2023
We replaced the bridge that carries the Newburyport/Rockport Line over Commercial Street in Lynn between River Works and Lynn Station.
Past Events
Downloads
We invite you to review documents and downloads related to the Rail Bridge Replacements project.
Recent Updates
Building a Better T
As part of our $9.6 billion, 5-year capital investment plan, we're renovating stations, modernizing fare collection systems, upgrading services for our buses, subways, and ferries, and improving the accessibility of the entire system.