This article describes the challenges faced by the World’s largest hard rock TBM (47.2-ft in diameter) as it tunnels through some very difficult geology while constructing a massive tunnel under Niagara Falls for hydroelectric power […]
The Gotthard Base Tunnel will eventually be a 35-mile rail tunnel through the famed Alps in southern Switzerland. So what does it take to survey the world’s longest tunnel? How about setting some 7,000 points […]
The Capital Gate building in Abu Dhabi was just certified by Guiness as the ‘World’s Furthest Leaning Man-made Tower’. The bottom 18 stories of the 35-story building were constructed vertical, and the remaining ones were […]
These are some really fantastic photos of the Devil’s Slide tunnel construction. For those who aren’t familiar, the tunnels will be bypassing a particularly landslide and rockslide-prone portion of the California Coast that is currently […]
There are a total of 7 TBM projects in the New York area either currently under construction, awarded or coming soon totaling roughly $4.7 billion! The caption on the nice summary table at the end […]
For those in my generation, the Steven Spielberg movie ‘Saving Private Ryan’ is probably what most sticks in people’s minds when they think of the WWII invasion of Normandy, otherwise known as D-Day. The graphic […]
Although they are nearly at the final depth, the work thus far has been primarily to construct the 4-km long access tunnel. The facility is not scheduled to accept the nuclear waste until 2020 but […]
The new line will serve 200,000 riders per day when it opens in 2017. Total project cost is $4.5 billion. An interesting note regarding the tunnel boring machine itself: The tunnel boring machine was originally […]
In 2007 the US Army Corps identified Wolf Creek Dam in Kentucky as one of the top 6 dams that are “critically near failure or have extremely high life and/or economic risk…” This structure is […]
A nifty BIM-type view of the proposed bored tunnel for Washington SR 99, the tunnel to replace the aging Alaskan Way Viaduct along Seattle’s waterfront. It’s pretty neat to see the piles and foundations for […]
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