BOSTON— Skanska has been awarded a $1.06 billion contract by the Massachusetts Bay Transportation Authority (MBTA) to replace the North Station Draw One Bridge and complete associated track and signal upgrades across Boston, Cambridge, and Somerville.
The project, which will modernize a key section of the region’s commuter rail system, is expected to improve service for more than 11 million riders annually. VHB, an engineering and design firm based in Watertown, will serve as the design partner under the design-build contract.
The work includes replacing the existing 1930s-era bascule bridges over the Charles River with new vertical lift spans. Additional improvements include upgrades to approach trestles, construction of a new Tower A control facility, and the addition of a new Platform F at North Station.
Project officials said the upgrades are intended to improve operational flexibility, increase reliability, and accommodate future ridership growth across the MBTA’s north-side commuter rail network.
“We are proud to partner with the MBTA on this transformative infrastructure investment that will enhance reliability and support the region’s growing transit needs,” said Paul Pedini, senior vice president of Skanska USA Civil.
Ricky Carey, design manager at VHB, described the bridge replacement as one of the most significant infrastructure investments in the commuter rail system, noting the long-term benefits expected for one of the region’s busiest corridors.
The project also includes comprehensive upgrades to track systems, signaling, and Positive Train Control (PTC) technology aimed at improving safety and efficiency. Plans call for expanding the rail corridor from four to six tracks across the river, which is expected to reduce congestion and improve service reliability.
Construction will be phased to allow continued commuter rail and Amtrak operations throughout the project. The team said it will use alternative construction methods to reduce in-water work and streamline staging.
Work is scheduled to begin this month, with completion anticipated in fall 2032.
