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tunnel boring machine

file photo of a tunnel boring machine in Italy (photo credit: GIUSEPPE CACACE/AFP/Getty Images)

Plan Advances To Dig Up Now-Stalled Bertha

The new tunnel would allow workers to dig up and repair the now-stuck boring machine

CBS Seattle–05/09/2014

(photo credit: Washington State Dept of Transportation)

Bertha Will Not Dig Again Until March 2015

Bertha, the machine boring the State Route 99 tunnel in Seattle, will not resume digging until the end of March 2015 and that the tunnel will not open until November 2016, according to the Washington State Department of Transportation.

CBS Seattle–04/21/2014

file photo of a tunnel boring machine in Italy (photo credit: GIUSEPPE CACACE/AFP/Getty Images)

Seattle Viaduct Sinks Half-Inch Near New Tunnel

The Alaskan Way Viaduct has sunk nearly half-an-inch at one location where a machine has been boring a highway tunnel under downtown Seattle.

CBS Seattle–02/25/2014

file photo of a tunnel boring machine in Italy (photo credit: GIUSEPPE CACACE/AFP/Getty Images)

Seattle Tunneling Operations On Hold Yet Again

Seattle’s massive tunneling operation is on hold yet again due to ongoing problems with the world’s largest boring machine, officials said Friday.

CBS Seattle–01/31/2014

file photo of a tunnel boring machine in Italy (photo credit: GIUSEPPE CACACE/AFP/Getty Images)

Tunnel Boring Machine To Restart

The giant machine digging a highway tunnel under Seattle is expected to resume light work this week, but officials still don’t know what stopped the giant drill for nearly two months, the Washington State Transportation Department said late Monday.

CBS Seattle–01/28/2014

file photo of a tunnel boring machine in Italy (photo credit: GIUSEPPE CACACE/AFP/Getty Images)

3-Foot Chunk Stuck In Tunneling Machine

Crews have found a hard object more than 3 feet wide lodged in the tunneling machine that’s currently stalled 60 feet under the city of Seattle, officials said Wednesday.

CBS Seattle–01/22/2014

file photo of a tunnel boring machine in Italy (photo credit: GIUSEPPE CACACE/AFP/Getty Images)

Steel Pipe In The Way Of Seattle Tunnel Machine

The state Department of Transportation said Friday the 8-inch-diameter pipe was discovered protruding through an opening in the machine’s cutter-head.

CBS Seattle–01/03/2014

file photo of a tunnel boring machine in Italy (photo credit: GIUSEPPE CACACE/AFP/Getty Images)

Seattle Tunnel Boring Machine Still Stalled

The huge machine drilling a highway tunnel under downtown Seattle remains stalled by a mysterious blockage.

CBS Seattle–12/26/2013

(Photo credit MANAN VATSYAYANA/AFP/Getty Images)

Mystery Tunnel Obstruction Will Soon Be Known

The contractors drilling a tunnel under downtown Seattle are closer to finding out what has blocked their boring machine.

CBS Seattle–12/19/2013

(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

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