Alaskan Way Viaduct

(Photo by Stephen Brashear/Getty Images)

Seattle Tunnel Machine Reaches Rescue Pit By Breaking Through Wall

Bertha, Seattle’s tunnel machine, achieved what officials called “a significant milestone” on Thursday when it broke through a 20-foot-thick concrete access pit wall into a shaft so that it can be pulled out and repaired.

CBS Seattle–02/19/2015

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Seattle Tunnel Machine Breaks Through Wall

Bertha has reached her goal

02/19/2015

(Photo by Stephen Brashear/Getty Images)

Seattle Tunnel Machine ‘Bertha’ Moves Toward Access Pit

Bertha is on the move.

CBS Seattle–02/18/2015

(Photo by Stephen Brashear/Getty Images)

Alaskan Way Viaduct Settles In Deeper

The Alaskan Way Viaduct has settled up to a quarter inch during the past month, but transportation officials say the waterfront structure is still safe.

CBS Seattle–02/13/2015

(Photo by Stephen Brashear/Getty Images)

State, Contractor Still Battling Over Viaduct Project

The manager for the troubled Alaskan Way Viaduct replacement project told lawmakers Thursday that the state and the contractor are still battling over tens of millions of dollars in repairs dating back to 2012, but even if the contractor declares bankruptcy tomorrow, the project could still be completed.

CBS Seattle–01/23/2015

(Photo by Stephen Brashear/Getty Images)

Downtown Tunnel To Open August 2017

A new highway tunnel through downtown Seattle won’t be open until August 2017, about 20 months behind schedule, state transportation officials said Monday.

CBS Seattle–12/23/2014

(Credit: Washington Department of Transportation)

Settling Halts Work At Seattle Tunnel Project

Settling soil has caused a contractor building the Highway 99 tunnel beneath downtown Seattle to stop work on a pit being dug to reach a stalled digging machine known as Bertha, the state said.

CBS Seattle–12/08/2014

(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: 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

(Credit: Washington Department of Transportation)

Large Wall Part Of Seattle Tunnel Machine Repair

It seems that everything connected with the effort to dig a highway tunnel under downtown Seattle is big — from the tunneling machine that stopped working last December, to a large plywood wall planned to shield neighbors from the noise of repairing the machine.

CBS Seattle–04/03/2014

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