Skanska has secured two major US construction contracts worth a combined $1.3 billion, spanning higher education expansion in New Jersey and critical rail infrastructure upgrades in the Boston area.

The larger of the two awards is a $1 billion design-build contract from the Massachusetts Bay Transportation Authority for the replacement of the North Station Draw One Bridge and associated rail upgrades across Boston, Cambridge and Somerville, Massachusetts.

The project will replace the existing 1930s-era bascule bridges with new vertical lift spans and upgrade surrounding rail infrastructure serving the MBTA’s north-side commuter network. Work includes new approach trestles, a new Tower A control facility and support for the addition of a new Platform F at North Station.

The contract also includes integrated track, signal and Positive Train Control upgrades aimed at improving system resiliency while maintaining uninterrupted commuter rail and Amtrak service during construction.

Skanska said the project will incorporate Alternative Technical Concepts designed to reduce in-water work, simplify construction staging and improve safety. The upgrades will also expand the Charles River crossing from four to six tracks while minimizing disruptions for more than 100,000 daily passengers who rely on the network.

Construction is scheduled to begin in May 2026, with completion targeted for fall 2032.

Separately, Skanska has signed a $305 million contract to renovate and expand a university computer science center in New Jersey.

The project includes the construction of a new six-story, 12,200-square-meter (131,000-square-foot) addition featuring classrooms, offices and laboratory space designed to support interdisciplinary collaboration and computational research.

The development will combine structural steel and mass timber construction and is intended to serve as a hub for computer science studies and academic partnerships.

In addition to the expansion, the project includes renovations to approximately 9,300 square meters (100,400 square feet) across seven floors of an existing historic hall, including new office and conference space while preserving the building’s historic character.

The project is targeting LEED Gold certification through sustainable design and construction practices.

Construction began in March 2026 and is expected to be completed during the first quarter of 2030.