Skanska in $1.4 billion deal to replace vulnerable Seattle bridge

Plan view of the future Roanoke Lid, looking southeast Plan view of the future Roanoke Lid, looking southeast (Image: Washington State Department of Transportation)

Skanska has won a deal for US$1.4 billion with the Washington State Department of Transportation (WSDOT) to replace the Portage Bay Bridge in Seattle, Washington.

The Portage Bay Bridge and Roanoke Lid Project replaces the aging Portage Bay Bridge, which was built in the 1960s, with a seismically resilient structure.

Supported by hollow concrete columns, the existing four-lane bridge could collapse in a severe earthquake, according to WSDOT.

The project also includes improved bus/carpool travel…

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