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Engineers are still desperately trying to rescue the world's largest tunneling machine that is stuck under the city of Seattle. Bertha, ... world 039 s largest underground tunneling machine world 039 s largest tunnel boring machine world 039 s largest tunnel boring ...

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Here's what is blocking Bertha, the world's largest tunneling ... Bertha, the world's biggest tunnel-boring machine currently underneath Seattle, has been stuck for nearly one month. ...

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Watch Bertha, the world's largest tunnel boring machine, emerge from beneath Seattle – GeekWire

Watch Bertha, the world's largest tunnel boring machine, emerge from beneath Seattle by Kurt Schlosser on April 4, 2017 at 10:01 am April 4, ...

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The SR 99 tunneling machine, nicknamed Bertha, has completed her work. For the latest tunnel progress, visit our new tracker page. get price ...

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Bye-Bye to Bertha, the world's largest tunneling machine - YouTube

This time-lapse video captures the difficult and challenging work to disassemble the world's largest-diameter tunneling machine. For four months, crews cut, ...

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A mysterious object has blocked the world's largest tunneling machine from finishing an underground highway in Seattle. The drilling machine know as Bertha ...

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Big Bertha -- world's largest tunnel boring machine -- facing big Seattle challenge - YouTube

Named after one of Seattle's early mayors, the $80 million drill Big Bertha is 326 feet long, weighs 6,700 tons, and does much more than drill. John Blacksto...

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Some of the world's largest machines were originally built for just one-time use. read more ... The SR 99 tunneling machine, nicknamed Bertha, has completed her work. For the latest tunnel progress, visit our new tracker page. read more Alaskan Way Viaduct ...

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A mysterious object has blocked the world's largest tunneling machine from finishing an underground highway in Seattle. The drilling machine know as Bertha – at five stories high and operated by a crew of 20 people ...

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bertha world 039 s largest tunnel-boring machine Home / bertha world 039 s largest tunnel-boring machine Content Big Bertha ... the tunneling machine Bertha broke through into the disassembly pit, completing her 1.7-mile journey under downtown Seattle. The ...

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Bertha The Largest Tunnel Boring Machine - YouTube Jul 22, 2017 · On April 4, the world's largest tunnel boring machine broke through to the open air after almost four years underground. Called Bertha, the giant digger ...

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Bertha The Largest Tunnel Boring Machine - YouTube Jul 22, 2017 · On April 4, the world's largest tunnel boring machine broke through to the open air after almost four years underground. Called Bertha, the giant digger ...

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Bertha (tunnel boring machine) - Wikipedia

Bertha resumed tunneling on Friday, April 29, 2016, digging under the Alaskan Way Viaduct. ... Beck tunnel boring machine: Previously the world's largest tunnel boring machine References External links Wikimedia Commons has media related to Alaskan Way. ...

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Bertha, the world's largest tunneling machine, churning through the rock and mud beneath Seattle, has hit a mysterious roadblock—so mysterious, ...

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