Seattle Tunnel Partners released a new schedule this week for the repair of the damaged seals on the Bertha Tunnel Boring Machine. This revised schedule shows that the TBM won’t be digging again until March of 2015. The excavation of the pit to access the TBM will begin at the end of May, a delay caused by additional archaeological work. By October they hope to have the cutterhead removed to conduct the repairs, and the machine will undergo testing in February of 2015 with tunneling resuming in March of 2015. [Source: WSDOT. Image: WSDOT]
Related Articles
Contractors battle to extract TBM after silt breaches tunnel
February 28, 2011
rockman
Project Related
Comments Off on Contractors battle to extract TBM after silt breaches tunnel
Final three pieces of tunneling machine safely in the access pit
September 14, 2015
rockman
Project Related
Comments Off on Final three pieces of tunneling machine safely in the access pit
Hidden challenges of Highway 99 tunnel (Seattle’s Alaskan Way Viaduct Replacement)
July 15, 2010
rockman
Project Related
Comments Off on Hidden challenges of Highway 99 tunnel (Seattle’s Alaskan Way Viaduct Replacement)
The proposed tunnel to replace the seismically deficient Alaskan Way Viaduct in Downtown Seattle is no stranger to controversy. This article highlights recent discussions regarding the cost of the project. Washington Governor Chris Gregoire declared […]