big bertha

(photo credit: WSDOT)

Seattle Tunnel Builders Make Progress On Machine Repair

Bertha, the broken-down tunneling machine, moved forward three feet during recent testing, while workers building an underground circular pit that will allow access to the machine finished installing the last of 84 large concrete cylinders known as piles.

CBS Seattle–09/08/2014

(Photo credit MANAN VATSYAYANA/AFP/Getty Images)

Effort To Repair Seattle Tunnel Machine Delayed

An effort to repair the giant tunneling machine stuck under downtown Seattle is going more slowly than expected.

CBS Seattle–07/28/2014

(Credit: Washington Department of Transportation)

Fixing Seattle Tunneling Machine Will Take Months

Wash. DOT says many of Big Bertha’s cutter-head openings are clogged with dirt and debris.

02/11/2014

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)

Digging Down To Stuck Seattle Tunnel Machine

The Transportation Department says help is on the way for a massive machine that became stuck last month while boring a tunnel under downtown Seattle.

CBS Seattle–01/08/2014

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

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