Glacier Northwest also said its soil handling took place outside WSDOT’s tunneling site, and its role was to fulfill its $28.3 million contract with private Seattle Tunnel Partners firms ...

Washington State Department of Transportation will implement a toll as drivers make their way through the tunnel... The second phase of the Seattle Squeeze is winding down but that doesn’t mean ...

A portion of Seattle's Alaskan Way Viaduct is being replaced by a deep tunnel, and the machine purpose-built for the job is the world's largest tunnel boring machine (TBM), christened "Bertha." ...

An curved arrow pointing right. When Seattle decided to put in a new highway tunnel beneath the city, a machine was specially built to dig the 2-mile long, 57-foot wide project. The 6,700 ton ...

That tunnel vote has been fodder for spirited talk ’round Seattle Mag World Headquarters of late (though it’s curiously quiet today). But it’s less about which camp you’re tunneled into (dig it or ...

Bob Ferguson and the state Department of Labor & Industries announced Tuesday that Highway 99 tunnel subcontractor ... it underpaid for work on the Seattle tunnel project. The 46 employees who ...

That estimate is based on the 3.2 kilometre, $3.3-billion US State Route 99 Tunnel that was finished in Seattle, Washington in 2019. But the price of the 401 tunnel is likely much higher, given the ...