The Mystery Buried Beneath Seattle- What Is It? - YouTube

Drilling cranes ready to find out what's blocking Bertha 'Bertha' stopped after reaching obstruction Transportation crews still don't know what exactly is blocking the path of "Bertha," the giant boring machine that's drilling the new Highway 999 tunnel under Seattle.

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Seattle's big tunnel project reaches a milestone, but it's way behind schedule

Seattle's big tunnel project reaches a milestone, but it's way behind schedule By Rick Anderson May 01, 2017 | 5:00 AM | SEATTLE ... 326-feet-long tunnel boring machine, known as Bertha. The nickname honors Bertha Landes, Seattle's first and only female ...

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Another Seattle tunnel drill (not Bertha) damaged, needs repair | The Seattle Times

Bertha isn't the only tunnel machine to crack in Seattle soil. Drilling at Sound Transit stopped for six weeks when hard soil damaged five motors and the main gear, officials ...

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Alaskan Way Viaduct - Home - Washington State Department of Transportation

this project entails more than just demolishing the Alaskan Way Viaduct. Kiewit will be responsible for: ... At the time, Seattle Tunnel Partners was working on the double-deck highway inside the tunnel and had completed about half of the upper roadway ...

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Watch: Seattle tunnel project 2017 milestones - seattlepi.com

Dec. 7, 2013 - The contractor digging the tunnel for WSDOT, Seattle Tunnel Partners, "proactively" stopped tunneling after the machine encountered serious resistance. Bertha had been tunneling since July 30 and had made 1,000 feet the day before. In this photo, a ...

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Seattle tunnel, among world's biggest, takes step toward completion - AOL News

Workers make preparations to lift the cutting head from Bertha, the world's largest tunnel-boring machine, and lift it out for repairs in Seattle, Washington March 9, 2015. Bertha stopped working in December 2013 after digging just 10 percent of a planned tunnel to ...

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Seattle Tunnel Partners: Inslee's order for Bertha to stop drilling could create more sinkholes - Puget Sound Business Journal

The state order to halt work on the Highway 99 tunnel could create more problems for the project, contractors say. ... Seattle Tunnel Partners: Inslee's order for Bertha to stop ...

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Crews ready to hoist and repair massive tunneling machine under Seattle

SEATTLE (Reuters) - The world's largest tunnel-boring machine, stuck for over a year underneath downtown Seattle, will be pulled above ground starting this week to be repaired, state officials said on Tuesday. The machine, known as Bertha, stopped working in December 2013 after digging just 10

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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 ... WSDOT nicknamed the TBM "Bertha" after Seattle's first female mayor, Bertha Knight Landes. This name was chosen ...

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The part of the SR 99 tunnel built without Bertha - YouTube

Approximately 20 percent of the SR 99 tunnel was designed to be built without Bertha, the SR 99 tunneling machine. Seattle Tunnel Partners bored more than 1,000 feet of tunnel before they stopped to repair Bertha. Since then, they have built an additional 1,200 ...

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Alaskan Way Viaduct - Follow Bertha - Washington State Department of Transportation

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. An abbreviated history of Bertha: July 2013: Began tunneling April 2017: Tunneling ...

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Bertha Stopped Because the Machine "May Be Several Inches Off" Tunnel Alignment, State Says - Slog - The Stranger

Bertha, the $80 million tunnel boring machine making a tunnel for cars beneath downtown Seattle, has been humming along without a significant amount of issues since its enormous, two-year repair wrapped up at the end of 2015. But in the final stretch of drilling, it ...

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We Finally Found What's Blocking The World's Largest Tunneling Machine

Ever since the colossal machine tunneling under Seattle, nicknamed Bertha, was stopped in its tracks, there's been a frenzied speculation about what ...

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Inslee orders tunnel dig halted as soil sinks above Bertha | The Seattle Times

A sinkhole near the underground Bertha cutterhead has been filled with sand and concrete. Work on the Highway 99 tunnel in Seattle is expected to resume this week. ... Gov. Jay Inslee's order to stop follows the report of a sinkhole opening up this week. The state ...

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Sinkhole halts Seattle's 'Bertha' tunnel project | Construction Dive

Dive Brief: Once again, the tunnel-boring machine dubbed Bertha has been taken offline, and the $1.35 billion Alaskan Way Viaduct is on hold, the Associated Press reported. Washington State Department of Transportation officials and Gov. Jay Inslee stopped all ...

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

Five stories tall and the biggest drill of her kind, Bertha overheated in December 2013, only about a ninth of the way into the project to bore a tunnel under downtown Seattle. Hitachi Zosen of Japan manufactured the drill and was tasked with repairing it to the tune of $ ...

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

The receiving pit at the north end of Seattle's SR 99 tunnel project, where Bertha the tunnel machine will break through next year. (Kurt Schlosser / GeekWire photos) The SR 99 tunneling machine has passed the halfway point on its long journey beneath Seattle ...

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Seattle's long-broken tunnel-boring machine set to resume Nov. 23

state officials said on Friday. The broken machine, known as Bertha, stopped ... Workers look on as they lift the machine head from Bertha, the world's largest tunnel-boring machine, from an access pit for repairs in Seattle, Washington March ...

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AWB members step inside Bertha, Seattle's tunneling machine > Blog > Association of Washington Business

Bertha is stopped about 1,000 feet into her 9,300-foot journey. On Thursday AWB members toured the tunnel and boring machine. This is the view from inside the first portion of Bertha, looking back up the tunnel toward the open air of Seattle's stadium district.

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What's Blocking Bertha, Seattle's 5-Story Tunneling Machine? : The Two-Way : NPR

What's Blocking Bertha, Seattle's 5-Story Tunneling Machine? : The Two-Way The giant cutter is designed to bore through rock and soil without a problem. But it has hit something that has brought work on a highway tunnel to a stop. Officials say it may take a ...

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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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Bertha Tunnel Boring Machine Halted, May Be Off Course 'Several Inches' | Seattle, WA Patch

Bertha Tunnel Boring Machine Halted - Seattle, WA - Just 1,000 feet from the finish line, Bertha the SR 99 tunnel boring machine has been stopped because it may be off course.

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Bertha has tunneled 292 feet since Seattle's viaduct closed

Above, drone footage from the inside of the Seattle tunnel. Sunday UPDATE: Bertha has bored 78 feet since Friday morning and she continues to make her way under the viaduct. The Washington State Department of Transportation reports crews have now installed 44 rings and excavated 292 feet since the

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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 breaks through Seattle waterfront tunnel - seattlepi.com

Dec. 7, 2013 - The contractor digging the tunnel for WSDOT, Seattle Tunnel Partners, "proactively" stopped tunneling after the machine encountered serious resistance. Bertha had been tunneling since July 30 and had made 1,000 feet the day before. In this photo, a ...

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