Not too many details here since I am not a subscriber to their magazine, but it does appear to be some much needed good news for the King County, WA (Seattle area) Brightwater treatment plant […]
Current projections put the project completion 35-months behind schedule because of problems with a portion of the TBM constructed tunnel. The County is suing for $74M in damages associated with the delays. This massive sewer […]
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 […]
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 […]
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 […]
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 […]
Tunneling Business Magazine has a very nice cover story on Obayashi Corp, a well-known Tokyo, Japan-based mega-construction company with some impressive tunneling credentials. In their 30-years of working in the US, they were the first […]
In Washington D.C., the D.C. Water and Sewer Authority (D.C. WASA) finalized a lont-term plan in 2002 aimed at reducing combined sewer outfalls into the Potomac River and its tributary, the Anacostia River. A major portion of this plan is a $2.2 Billion (US) deep tunnel program to handle excess stormwater flows and prevent the combined sewage from being discharged into the environment. Read on for a map and more info. (Photo of Anacostia River, by D.C. WASA)
Controversy was swirling around last week’s Seattle Mayoral primary race as incumbent Mayor Greg Nickels supports the tunnel to replace the Alaskan Way Viaduct and challenger Michael McGinn wants to tear down the viaduct and […]
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