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tunnel boring machines

2016-02-17 18:19:08| PortlandOnline

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Lifting Bertha, the Worlds Largest Tunnel Boring Machine

2014-01-22 18:45:53| ENR.com: Headline News

Barnhart Crane & Rigging was charged with transporting the TBMs 41 individual piecesthe largest weighing 850 tonsfrom a freighter docked at the Port of Seattle and carefully lowering them into a launch hole.

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?People Dig Tunnel Boring Machines That Tweet

2013-06-18 18:00:34| ENR.com: Headline News

Perhaps not since Bob the Builder have so many pieces of heavy construction equipment had so much to talk about.

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Q&A: Ten Minutes With Tunnel Boring Machines That Tweet

2013-06-17 21:05:17| ENR.com: Headline News

Several talkative TBMs carved out out some time for ENR to share their observations about the Twitterverse.

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