tunnel machine seattle

How did we get here? A look back on Seattle's tunnel machine Bertha | The Seattle Times

After launching in 2013, the world's largest tunnel-boring machine has less than 220 feet to go before finishing its 1.7-mile trip. Here's a look back on the tumultuous dig that's years ...

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Bertha, Seattle's SR 99 Tunneling Machine, Is Finally Done Digging | WIRED

Bertha has broken through. After nearly four years underground, Seattle's beleaguered boring behemoth clawed its way into daylight yesterday, leaving a 1.7-mile tunnel behind it. And now that its job is done, workers can at last move an aging, potentially dangerous stretch of elevated highway

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Seattle's tunnel boring machine Bertha reaches end of long, troubled journey (VIDEO) | Q13 FOX News

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 ...

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Stuck In Seattle | Bloomberg Business - Business, Financial & Economic News, Stock Quotes

Stuck in Seattle The Aggravating Adventures of a Gigantic Tunnel Drill By Karen Weise | March 31, 2015 ... Agnew helped revive an idea the state had previously deemed too pricey: a deep-bore tunnel, mined by a custom-built machine that digs without tearing ...

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

In October, workers walked through the first rings of the highway tunnel being built under Seattle's waterfront toward the boring machine called Bertha. Credit Washington State Department of Transportation SEATTLE — A secret subterranean heart, tinged with ...

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

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. GeekWire was on site, waiting (watch ...

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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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Seattle tunnel machine Bertha reaches halfway point — here's a rare look inside the massive project – GeekWire

The SR 99 tunneling machine has passed the halfway point on its long journey beneath Seattle, and officials stood 10 stories below street level on Monday to show off where Bertha is expected to punch through next spring. "This is the best hole in town," said Joe ...

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king5.com | Seattle's tunnel machine Bertha breaks through nearly 4 years later

It's official - Bertha has broken 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. Just before 10 a.m., Bertha pierced the cement wall of the

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Seattle tunnel machine completes mission three years late | Daily Mail Online

The world's largest tunnel-boring machine which is building a multi-billion dollar underground highway beneath Seattle has finally completed its missions - three years later than planned. Pictures show the machine, known as Bertha, breaking through a concrete wall as it reached the end of its

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World's biggest tunnel machine Bertha emerges from beneath Seattle - Autoblog

Bertha, the world's largest tunnel-boring machine, ends its journey today. It has spent four years traveling less than two miles to build a new car tunnel underneath Seattle.

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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. Gizmag took a ...

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

We've covered the saga of the SR99 tunneling machine, better known as Bertha, since it broke down after only drilling though just 52 feet in three days of operation. Now the Seattle tunnel boring machine is finally back on track. It just broken through an access repair tunnel and has since mined 73

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Alaskan Way Viaduct - Tunneling - Washington State Department of Transportation

The tunneling machine known as Bertha began tunneling beneath Seattle in July 2013 (photo at right: the machine's cutterhead being lowered into the launch pit near Seattle's stadiums). The machine completed its tunneling on April 4, 2017 and was ...

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Alaskan Way Viaduct replacement tunnel - Wikipedia

The Alaskan Way Viaduct replacement tunnel is a bored road tunnel that is under construction in the city of Seattle in the U.S. state of Washington. The 2-mile ...

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Why Seattle's Huge Tunnel-Boring Machine Is Still Stuck

December has not been kind to Seattle's enormous tunneling project. And not just this December. A year ago this month, North America's largest tunnel-boring machine got stuck just 10 percent of the way through a 1.7-mile-long dig under downtown Seattle. Throughout 2014, engineers have been plugging

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Alaskan Way Viaduct - Home - Washington State Department of Transportation

Since 2011, the street has been neatly squeezed in between the Alaskan Way Viaduct's concrete footings. ... Nearby cranes indicate that there's still lots of construction in the area, but Seattle Tunnel Partners' work is beginning to wind down. Last month STP ...

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Bertha's breakthrough just 'halftime' for tunnel project | The Seattle Times

The world's largest tunnel drill spent Tuesday morning kicking up dust and grinding into daylight. Workers and politicians celebrated, but a lot of work remains before motorists drive the double-deck, four-lane tunnel, says a project administrator.

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This was the pits: Time-lapse video shows highway fill in hole where Seattle tunnel machine ended – GeekWire

https:// The seven-story-deep receiving pit where Bertha the SR 99 tunneling machine ended her years-long run has been transformed in just a matter of months as the Seattle highway project races toward the finish line. A ...

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SR 99 Tunneling machine animation (2013) - YouTube

SR 99 Tunnel machine on the move - Duration: 1:46. wsdot 6,767 views 1:46 Filling in the access pit used to repair the SR 99 tunneling machine - Duration: 1:08 ...

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Bertha (tunnel boring machine) - Wikipedia

Bertha was a 57-foot-diameter (17.4 m) tunnel boring machine built specifically for the Washington State Department of Transportation's (WSDOT) Alaskan Way Viaduct replacement tunnel project in Seattle. It was made by Hitachi Zosen Sakai Works in Osaka ...

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In Seattle, a Sinking Feeling About a Troubled Tunnel - The New York Times

Seattle has its tunnel, which over the last year has featured a series of setbacks and fiascos that, depending on one's outlook, can be the setup for a punch line, or an eye-rolling narrative of put-upon endurance. Image Efforts to reach a clogged digging machine. ...

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