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Boring Bertha Has Been Freed And Will Try Again

caption: The hole built to rescue Bertha, the deep boring machine.
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The hole built to rescue Bertha, the deep boring machine.
WSDOT webcam

Engineers have removed the cutter head from the enormous tunneling machine nicknamed Bertha. The malfunctioning part had been stuck for more than a year in a highway project under Seattle's downtown.

Ongoing coverage of Bertha, Seattle's tunneling machine.

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