Seattle’s Alaskan Way Viaduct was seismically unsafe, leading to one of the city’s most ambitious projects: the Bertha tunnel. Learn how the project was planned, the challenges faced ...

It applies to state and municipal projects. Large projects, including the Seattle tunnel, often are governed by additional “project labor agreements” that lock in union participation ...

Seattle-area voters ... and four different subcontractors trying to work in one tunnel,” says Chris Wood, JCM site project superintendent. “It’s important that we keep work linear.

a boring machine imported from Japan for the project got stuck. A worker on the upper level, southbound lanes of the double deck State Route 99 highway tunnel in Seattle, Washington. (Jason ...

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 ...

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 ...

so contractor can lay more of the rings that will form the tunnel walls Feb 25, 2016 Digging for Seattle's Highway 99 tunnel has resumed six weeks after a sinkhole prompted the state to suspend work.

In the case of Seattle's recent project, a boring machine imported from Japan for the project got stuck. A worker on the upper level, southbound lanes of the double deck State Route 99 highway tunnel ...