seattle tunnel boring machine

  • Seattle Tunnel Boring Machine - Image Results

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  • Seattle tunnel progress a major contrast to past problems

    Bertha, the Seattle tunnel boring machine, is now almost halfway done with the 385-foot distance under the Alaskan Way Viaduct. And for the first time in more than two years, it looks like part of the project could be done on time. When tunneling started in 2013, Bertha was expected to go 35 feet ...

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  • 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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  • Seattle viaduct demolition: When it will happen and what to ...

    With Bertha the tunnel-boring machine's job complete, the Alaskan Way Viaduct replacement tunnel's construction is well underway. This means that the viaduct's days are officially numbered. The Washington State Department of Transportation (WSDOT) is in the process of putting together the plan ...

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  • World's largest tunnel-boring machine finally breaks through

    SEATTLE — The world's largest tunnel-boring machine broke through a concrete wall beneath Seattle on Tuesday to reach the end of its long, troubled...

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  • Mobotix in Seattle Tunnel Boring Machine - Radius Vision

    Mobotix Cams for Tunnel Boring Machine Project Nearly everyone in the Pacific Northwest has heard of Big Bertha – the giant tunnel-digging machine that became stuck under the streets of

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  • Gizmag goes inside the world's largest tunnel boring machine

    On Saturday,the world's largest tunnel boring machine was dedicated in the city of Seattle. "Bertha," as it's known, will spend the next 14 months boring a 1.7 mile (2.7 km) tunnel under the city to replace a viaduct damaged in a 2001 earthquake.

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  • Seattle's tunnel boring machine Bertha reaches end of long ...

    Apr 03, 2017 · Bertha, the machine digging a 1.75 mile tunnel under Seattle to replace a waterfront bridge with an underground roadway, had just 30 feet of mining left at the beginning of the day Tuesday.

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  • Seattle's tunnel boring machine Bertha reaches end of long ...

    Apr 03, 2017 · With a cloud of dust, Bertha — Seattle's tunnel boring machine — reached the end of her long, troubled journey, a milestone in a multibillion-dollar project to replace an aging highway hugging the city's waterfront.

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  • The World's Largest Tunnel-Boring Machine Must Be Saved

    The World's Largest Tunnel-Boring Machine Must Be Saved. Bertha has stalled deep beneath Seattle, leaving the city's planned waterfront renaissance hanging in the balance.

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  • Seattle Tunnel - Curbed Seattle

    Bertha hits it's deepest point underneath Seattle. The tunnel boring machine is now 60 percent done with her journey. ... The Seattle tunnel is finished (no, ...

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  • Seattle Hits Another Milestone on Light-Rail Tunnel Project ...

    Chuncks of a concrete support beam fall as a tunnel boring machine, turning a 21-foot diameter cutting head, breaks through a support wall in Seattle.

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  • Seattle tunnel machine begins drilling after 2-year break ...

    Jan 06, 2016 · Seattle's tunnel-boring machine has moved past the concrete walls that make up a repair pit and has started digging into soil about 80 feet below street-level along the city's waterfront.

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  • Seattle tunnel, among world's biggest, takes step toward ...

    Apr 03, 2017 · Bertha, one of the world's largest tunnel boring machines, emerged north of downtown Seattle on Tuesday.

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  • king5.com | Seattle's tunnel machine Bertha breaks through ...

    Seattle's tunnel boring machine that's been digging beneath the city for the State Route 99 tunnel reached the end of its 1.75-mile journey Tuesday, nearly four years after it embarked on the job.

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  • Seattle's unbelievable transportation megaproject fustercluck ...

    The tunnel-boring machine gets stuck . 2. ... which means WSDOT Seattle Tunnel Partners has to dig a 120-foot hole to reach the machine.

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  • Alaskan Way Viaduct - Tunneling

    The SR 99 Alaskan Way Viaduct, an elevated concrete structure built in the 1950s and vulnerable to earthquakes, is being replaced with a 1.7-mile tunnel running beneath downtown Seattle.

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  • Alaskan Way Viaduct - Follow Bertha

    The SR 99 tunneling machine, nicknamed Bertha, ... this page tracked her progress beneath Seattle. With the machine dismantled and removed, we are now tracking tunnel ...

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  • Hard grind: The epic journey of the world's biggest tunnel ...

    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 was tasked with the challenge of building a tunnel large enough to carry four lanes of motor traffic under the heart of Seattle. The story of how ...

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  • The world's biggest boring machine Bertha is taken out for ...

    Contractors building a highway tunnel under Seattle are preparing to remove the world's largest boring machine so that it can be repaired. The gigantic drill, known as Bertha, stopped working in December 2013 after digging just 1,000ft of its two-mile journey to replace the aging Alaska Way, which ...

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  • 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 ... the world's largest tunnel boring machine, ...

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  • 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.

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  • Alaskan Way Viaduct replacement tunnel - Wikipedia

    The Alaskan Way Viaduct replacement tunnel is a bored road tunnel that is ... the tunnel boring machine broke through to the ... Seattle Tunnel Partners are ...

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  • Seattle tunnel machine completes mission three years late ...

    Bertha breaks through: World's largest tunnel-boring machine which is building a $3.1billion underground highway beneath Seattle completes mission three years late

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  • Stuck In Seattle | Bloomberg Business - Business, Financial ...

    Stuck in Seattle The Aggravating Adventures of a Gigantic Tunnel Drill By Karen Weise ... STP decided to buy the tunnel-­boring machine from Hitachi Zosen, ...

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