This is a great piece that covers a lot of ground about the project. The author included information on the background of the original highway, and a nice discussion of the political aspects that drove […]
It seems like every time I turn around these days there is another amazing tunnel project in the news. The level of engineering brought to bear on these challenges is phenomenal, whether it’s in the […]
London’t mega-project known as Crossrail that involves the construction of 118 km (73 mi) of new rail line with 42 km (26 mi) of new tunnels. The geotechnical investigation for Crossrail included rock coring, and […]
This news story aired a few weeks back. It has some great views of the tunneling process but also focuses on some of the social issues, such as complaints about Rats, as well as noise […]
The Norwegian government wants to build a tunnel linking two fjords that would be large enough to pass 16,000 tonne cargo and passenger ships. The treacherous stretch of waterway has seen 46 accidents and 33 […]
The District of Columbia Water and Sewer Authority (DC Water) recently christened a new Tunnel Boring Machine ‘Lady Bird’ in honor of former first lady Claudia Alta ‘Lady Bird’ Taylor Johnson. The roughly 23-ft diameter […]
The world’s largest Tunnel Boring Machine or TBM just arrived in Seattle last week from Japan. Hitachi Zosen Corp built the 57 foot diameter TBM and tested it before disassembling it for the journey by […]
California motorists can now avoid a dangerous and landslide-prone stretch of the Pacific Coast Highway, Devil’s Slide, through the tunnel bypass. This project has been a fascination of mine since the early days of GeoPrac. […]
Golder Associates posted the video below describing some of their work on the York University Subway Tunneling Test Monitoring Project, part of the larger Toronto-York Spadina Subway Extension Project in Toronto, Ontario, Canada. The tunnels […]
Over 200 buildings will receive some form of geotechnical and geostructural monitoring around the Highway 99 tunnel in Seattle, better known as the tunnel that will replace the Alaskan Way Viaduct. A Seattle Times article […]
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