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tunnel boring machine

(Photo credit MANAN VATSYAYANA/AFP/Getty Images)

Object Blocking ‘Big Bertha’ Still A Mystery

The $80 million machine is designed to break up boulders, so what it hit is a mystery. It may be a huge boulder left by the last ice age. Others think it could be a buried rail car from pioneer days when the area was filled in.

CBS Seattle–12/11/2013

(Photo credit MANAN VATSYAYANA/AFP/Getty Images)

More Delays For $2B Tunnel Project

Boring at Seattle’s $2 billion tunnel project has been delayed again until next week.

CBS Seattle–09/20/2013

(Photo credit MANAN VATSYAYANA/AFP/Getty Images)

Massive Tunneling Machine Arriving In Seattle

The world’s widest tunnel boring machine arrives in Seattle in pieces Tuesday aboard a ship from Japan.

CBS Seattle–04/02/2013



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