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Boring machine for Alaskan Way tunnel will be the size of a Jumbo Ferry

Post by News Tribune Staff on June 28, 2009 at 12:32 pm with No Comments »
June 28, 2009 12:32 pm

The tunnel boring machine pictured below was built by Herrenknecht AG (which has an office in Tacoma), for a tunneling job in Madrid, Spain. Below the picture are links to three companies that are in the business of building these huge machines (they’re about 55-60 feet in diameter) and which are likely to be interested in getting the job to build a “drill bit” for the 1.7-mile deep-bore tunnel under First Avenue in Seattle to replace the Alaskan Way Viaduct.

Here is a link to Herrenknecht AG. This is a German firm with an office in Tacoma.

Here is a link to RobbinsTBM in Kent. Company HQ is in Ohio.

Here is a link to NFM Technologies. This is a French firm that recently was sold, to Mitsubishi, I think.

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