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Historic Boston Bridge Wins APWA Award

Boston – The Longfellow Bridge Rehabilitation Design-Build project was honored by the American Public Works Association (APWA) with a 2019 Public Works Project of the Year Award in the category of Historical Restoration/Preservation more than $75 million.

The award will be presented at a ceremony and reception, to be held on September 9 during APWA’s Public Works Expo (PWX) at Washington State Convention Center in Seattle.

STV was the lead designer as part of the design-build team led by the WSC joint venture of J.F. White Contracting Company/Skanska/Consigli Construction Co. and Massachusetts Department of Transportation Highway Division (MassDOT) was the client.

Considered one of the most historically significant bridges in the state, the Longfellow Bridge connects Boston to Cambridge, carrying Route 3 and the Massachusetts Bay Transportation Authority’s (MBTA) Red Line over the Charles River. By 2013, the bridge’s arches, columns, ornate masonry and metal casting features had experienced deterioration and needed repairs to improve their structural integrity. The $306.5 million project was one of the five largest in MassDOT’s $3 billion Accelerated Bridge Program, whose goal is to reduce the state’s backlog of bridges in need of rehabilitation.

STV provided a full slate of architectural and engi­neering services as well as designs for trackwork, traction power, communications, and signals required by the numerous MBTA Red Line relocations. The project’s scope encompassed the complete reconstruction of the original 11 open-spandrel steel arch spans and a 12th span that was installed later; the seismic retrofit of 12 masonry substructures; and the reconstruction of the four signature granite towers flanking the main span. Concrete and masonry repairs were critical elements of the overall rehabilitation.

The bridge is now fully AASHTO compliant with three vehicle lanes, two rebuilt MBTA Red Line tracks, two bicycle lanes and two widened ADA-compliant sidewalks. The project upgraded the bridge’s structural capacity as well as multimodal access and bridge-to-city street accessibility connections. The Longfellow Bridge has been restored to its original architectural grandeur while adapting to meet 21st century transportation demands.

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