This is a great little time lapse video from WSDOT that shows the construction of the tunnel behind the Bertha’s disassembly pit for the Alaska Way Viaduct Replacement Project.
Building the Tunnel Behind Bertha
Project Related
Geotechnical work begins on Sydney’s $2.5B North West Rail Link
Geotechnical drilling has commenced for a massive Australian rail that will consist of Australia’s longest rail tunnel at 15.5km between Epping and Kellyville. The overall route will be 23km long. The investigations consist of 150 […]
Project Related
Gotthard Base Tunnel Achieves Milestone
On October 15, a major milestone was reached on Europe and the World’s longest rail tunnel. The Gotthard Base tunnel under the Swiss Alps will form a high speed rail link between northern and southern […]
Project Related
Underneath Seattle: Working Under Pressure to Keep Bertha Moving
Every tunneling machine needs its cutting tools replaced every now and then. But the challenge is keeping a giant machine sharp while a wall of waterlogged earth looms in front. Welcome to the world of […]