Cutterhead of Seattle tunnel machine lowered into place

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by KING 5 News

KING5.com

Posted on May 31, 2013 at 6:03 PM

Updated Monday, Dec 2 at 12:16 PM

The cutterhead of the giant tunnel boring machine known as “Bertha” was lowered Friday into the pit where tunneling will begin later this summer.

The pit is located just west of the Safeco and CenturyLink fields.

The 7,000 ton boring machine will spend more than a year tunneling under downtown Seattle to the South Lake Union neighborhood. The tunnel is scheduled to open in late 2015.

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