Seattle Tunnel Partners (STP) and manufacturer Hitachi Zosen have begun testing components of the SR 99 tunneling machin...
According to the Washington State Department of Transportation (WSDOT) website, Seattle Tunnel Partners (STP), the contr...
Seattle Tunnel Partners has reconnected the SR 99 tunneling machine’s 2,000-ton front end to the section that rema...
This week, Seattle Tunnel Partners began installing a new main bearing on the SR 99 tunneling machine. Installation of t...
The Washington State Department of Transportation (WSDOT) on May 18 posted on its website updates about the SR 99 TBM re...
State-of-the-art systems will be the key to maximizing safety and efficiency inside the SR 99 tunnel. Lighting and intel...