en.Wedoany.com Reported - The Massachusetts Bay Transportation Authority (MBTA) has selected Swedish contractor Skanska to undertake a major civil engineering project spanning the three cities of Boston, Cambridge, and Somerville. According to a company press release, Skanska has secured a $1 billion design-build contract to replace a critical railroad bridge in the Boston area and upgrade associated track and signal systems.

The project will replace the North Station Drawbridge 1, a bascule bridge built in the 1930s, with a new vertical lift span and support the construction of a new F Platform at North Station. The scope of work also includes upgrading the approach trestles and building a new Control Tower A, while enhancing integrated track, signal, and Positive Train Control upgrades. Upon completion of the railroad bridge project, rail capacity over the Charles River will expand from four tracks to six. The Skanska team plans to employ an Alternative Technical Concept to reduce in-water work and simplify phased construction, while minimizing service disruptions for the over 100,000 daily passengers who rely on the MBTA's North Side network. Alternative Technical Concepts are primarily used in design-build projects, allowing the contractor to offer solutions that are equal to or better than those specified in the original tender documents.

Skanska has experience with multiple railroad bridge projects. This past February, the company, together with a California engineering contractor, was awarded a $534 million contract to rehabilitate the deck of the Vincent Thomas Bridge in Los Angeles, with Skanska's share amounting to $320 million. Construction activity on the Massachusetts project is expected to begin this month, with a target completion date in the fall of 2032.

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