The Seattle Tunnel Partners JV announced last month that tunneling on the Alaska Way Viaduct Replacement project will resume a month later than originally planned. The Bertha TBM will resume mining on December 23 after a unique repair operation involving an access shaft. The tunnel boring machine is currently undergoing testing, and a jet grouting operation to tighten up the ground in advance of the TBM was undertaken last month. [Source: More at WSDOT Alaskan Way Viaduct Page. Image: WSDOT Flickr]
Related Articles
London Crossrail Project – Europe’s Largest Construction Project
Seven new design contracts were issued today for the Crossrail project including four central London Stations and three significant portals. According to the New Civil Engineer, the project is being called "Europe’s Largest Construction Project". […]
Video: CA Devil’s Slide Bypass Tunnels Finally Open
March 27, 2013
rockman
Project Related
Comments Off on Video: CA Devil’s Slide Bypass Tunnels Finally Open
Underneath Seattle: Working Under Pressure to Keep Bertha Moving
March 9, 2017
rockman
Project Related
Comments Off on Underneath Seattle: Working Under Pressure to Keep Bertha Moving