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February 18, 2014

Experts arriving to advise on options for repairing Bertha

Journal Construction Editor

Photo courtesy of WSDOT [enlarge]
To remove parts of Bertha, crews may need a modular lift tower similar to this one that was used to assemble the machine.

Experts from Brierley Associates are expected to arrive here today to advise Seattle Tunnel Partners on the best way to dig a pit for extracting the damaged main bearing seals from the tunneling machine that's stuck under the Seattle waterfront.

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