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seattle

Sound Transit Kicks Off East Link Light Rail Construction

TBM News

May 11, 2016

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News

SR 99 Update: STP Successfully Completes Demonstration Period

News

SR 99 Update: Bertha Completes 17 Rings

News

Seattle Tunnel Partners Resumes Mining on SR 99 Tunnel

February 23, 2016

News

WSDOT Suspends SR 99 Tunneling Following Sinkhole

January 15, 2016

News

SR 99 TBM Advances Out of Access Pit

Bertha, the SR 99 tunneling machine, is now tunneling in Seattle soil after breaking through the access pit wall late We...

January 8, 2016

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