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Big Bertha: Mystery object blocks Seattle's tunnel drill ...

Spa bombing update. ... Big Bertha: Mystery object blocks Seattle's tunnel drill. Share; Tweet ... The $80 million machine, nicknamed Big Bertha, ...

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seattle tunnel boring machine update ... 2014 · The mystery underground object that had been blocking the giant Big Bertha tunnel boring machine under Seattle ...

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... drone footage from the inside of the Seattle tunnel. Sunday UPDATE: Bertha has bored 78 ... World's biggest tunnel machine Bertha ... a Big Object Blocks Bertha.

Under Seattle, a Big Object Blocks Bertha. What Is It? - The ...

Dec 19, 2013 · In October, workers walked through the first rings of the highway tunnel being built under Seattle's waterfront toward the boring machine called Bertha.

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Bertha repair will take longer — there are lots of broken ...

Bertha repair will take longer — there are lots of broken parts ... Now that stalled tunnel machine Bertha's front end is ... going that big in diameter, ...

Seattle Tunnel Boring Machine -- Bertha Rescue

Why Seattle's Huge Tunnel-Boring Machine Is Still Stuck A year after Bertha got stuck, plans to free the big machine have stalled. And there's another problem.

Watch Bertha, the world's largest tunnel boring machine ...

From the dark depths beneath Seattle, Bertha the SR 99 tunnel machine headed out of the muck and into daylight on Tuesday, completing a final push in a years-long effort to create space for a new highway beneath the city.

Big Bertha Tunnel Machine Update - Video Results

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Bertha breaks through: Watch the tunnel boring machine's ...

After more than three years of drilling, Bertha's journey is coming to an end on Tuesday—and the big moment is being livestreamed.

Bertha (tunnel boring machine) - Wikipedia

Bertha was designed and manufactured by Hitachi Zosen Sakai Works of Osaka, Japan, and is the world's largest earth pressure balance tunnel boring machine, at a cutterhead diameter of 57.5 feet (17.5 m) across.

Bertha | The Seattle Times

Read more about the technical challenges and rising costs of the Highway 99 tunnel project, and the successes and travails of Bertha, the biggest-ever boring machine.

Big Bertha Tunnel Machine Update - Image Results

World's biggest tunnel machine Bertha emerges from ... - Autoblog

World's biggest tunnel machine Bertha emerges from beneath ... UPDATE: Bertha broke ... It was hard to notice the big moment of breakthrough on a machine for ...

How Bertha will tunnel beneath Seattle's Alaskan Way Viaduct ...

Bertha, the giant tunneling machine making its way ... that tunneling under the Alaskan Way Viaduct is "some of the ... and Twitter for the latest updates. ...

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Bertha tunneling update: One-third complete, ready to dig ...

Jun 27, 2016 · SEATTLE -- The Bertha boring machine has reached a big milestone. It has successfully made it under the Alaskan Way Viaduct without a hitch, and will soon start digging under downtown buildings.

Alaskan Way Viaduct - Home

Email updates. Home; About. ... so this project entails more than just demolishing the Alaskan Way Viaduct. ... the tunneling machine Bertha broke through into the ...

Seattle's Big Bertha Tunneling Machine Is Finally Back on Track

Seattle's Big Bertha Tunneling Machine Is Finally Back on Track. After three years and millions of dollars in repairs, the SR99 tunneling machine in Seattle has resumed operations.

Prosaic Pipe Stymied Seattle's Big Bertha - The New York Times

Jan 03, 2014 · What stopped the world's biggest tunnel-boring machine? A cottage industry of speculation yields to mundane ... Prosaic Pipe Stymied Seattle's Big Bertha.

Alaskan Way Viaduct - Follow Bertha

Follow Bertha Thank you for following Bertha. The SR 99 tunneling machine, nicknamed Bertha, has completed her work. For the latest tunnel progress, visit our new tracker page.

West Seattle Blog… | Alaskan Way Viaduct

Thanks to Gary Potter from Potter Construction (WSB sponsor) for the photos from this morning's big ride on the Alaskan Way Viaduct:. Rode the Emerald City Ride with Cascade Bike Club this morning.

Bertha breaks into repair vault | The Today File | Seattle Times

Update 4:15 p.m.: Tunnel-boring machine Bertha's cutterhead is within about three feet of drilling all the way to open air, which ought to happen this evening.