Home ?Barnhart Modular Lift Tower Positions Alaksan Way Viaduct TBM
 

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?Barnhart Modular Lift Tower Positions Alaksan Way Viaduct TBM

2013-06-05 19:07:54| ENR.com: Headline News

?Lowering a 7,000-ton tunnel-boring machine piece by piece into an 80-ft launch pit forced riggers to think outside the boom.

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