Hitachi Zosen Corporation has been selected by Seattle Tunnel Partners, WSDOT’s joint venture constructing the SR 99 bored tunnel. Hitachi Zosen was the best value manufacturer based on overall technical requirements, support capabilities, price and […]
The Devil’s Slide Tunnels that bypass a landslide prone stretch of California coast will not open until late 2012, a full year later than anticipated according to Caltrans. The tunnels broke through back in October, […]
What about the BART you may be wondering. Well, the Bart is not really a tunnel but a precast tube that was sunk and rests on the bottom of the bay. This water supply tunnel […]
The Toronto Transit Commission is starting a $2.6 Billion project to connect the City of Toronto with the municipality of York. This Toronto-York Spadina Subway Extension Project (TYSSE) consists of an 8.2 km extension of […]
This spring the world’s largest hard rock TBM at over 47 ft in diameter broke through on the 6.4 mile Niagara Tunnel Project. Ontario Power and Water commissioned the project as a third tunnel to […]
The EPA has released a ton of assessment reports on fly ash impoundments at coal burning power companies around the country. They have assessed a total of 228 fly ash disposal sites in 5 rounds […]
This week, Seattle’s Sound Transit will start drilling a $2 billion, three-mile light-rail tunnel to connect the University of Washington, Capitol Hill and Westlake Center. The first TBM will be christened today near UW’s Husky […]
ROGERS, Ark. — Construction of a “grout curtain” through Beaver Dam Dike 3 began this week to correct the dike’s chronic seepage problem. The work will be performed by GeoPrac.net sponsor Nicholson Construction company under […]
The cover story for Tunnel Boring Magazine’s April 2011 issue is about the Aero-train tunnel at Dulles Airport that has recently celebrated it’s first year of operation. There are 3 miles of tunnels that guide […]
An article about DBM Contractors of Federal Way, Washington. They are a specialty geotechnical contractor and are working on the Capital Hill Station for the Sound Transit light rail system in the Seattle Metro area. […]
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