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tunnel boring machine named bertha

Local Student Helps Name Largest Diameter Tunnel Boring ...

A second-grade student at Lincoln Elementary School in Hoquiam helped name the world's largest diameter tunnel boring machine.. The 80 million dollar machine was named Bertha in honor of Bertha Knight Landes, who was elected mayor of Seattle in 1926.

Project Bertha | Mammoet | Heavy lifting

... the world's largest tunnel boring machine was digging a road tunnel under the city of Seattle as ... the front end of the drilling machine - named 'Bertha' ...

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

The biggest tunnel-boring machine ever to get stuck ... High pressure deep in a tunnel forces the muck up Bertha's ... A Texas-based company named ...

8 Massive Tunnels Being Built Right Now Under A City Near You

Until being halted by a steel wellwater casing, the tunnel boring machine (TBM) named Bertha was digging a two-mile tunnel for the Alaskan Way Viaduct Replacement Program, repairing a double-decker highway along the Seattle waterfront that was damaged in the 2001 earthquake.

Alaskan Way Viaduct - Tunneling

The tunneling machine known as Bertha began tunneling beneath Seattle in July 2013 (photo at right: ... + Bertha's tunnel route

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.

Thanks to Bertha, Sound Transit nixes nicknames for its own ...

Thanks to Bertha, Sound Transit nixes nicknames for ... Seattle's other tunnel-boring machine, Bertha, ... The boring machines were originally named after the ...

Tunnel boring machine named Bertha begins ... - HistoryLink.org

On July 30, 2013, Seattle Tunnel Partners begins digging a new State Route 99 tunnel underneath downtown Seattle using a tunnel-boring machine named Bertha.

Pictured: The world's most powerful tunnel-boring machine ...

Crews struggled for weeks to reach the object that was blocking the boring machine, ... the tunnel for the first time that the machine ... named after Bertha ...

The World's Largest Tunneling Machine - Governing

The 7,000-ton machine, named ... The World's Largest Tunneling Machine ... a Japanese company began assembling "Bertha," the tunnel-boring machine that will ...

Tunnel Boring Machine Named Bertha - Image Results

What's Happening, Bertha! - SDOT Blog

Earlier this month, the Washington State Department of Transportation (WSDOT) announced Bertha as the new name for the SR99 tunnel boring machine. She was named after Seattle's Mayor Bertha Knight Landes, the first woman to lead a major American city (served from 1926 to 1928). The name was chosen ...

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

The world's biggest tunnel boring machine, named after Seattle's first female mayor, has been brought to a halt

Seattle's Giant Drill, 'Bertha,' Is Stuck - Newser

Dec 11, 2013 · A giant drill boring beneath a section of Washington's State Route 99 has ground to ... "Bertha," the massive tunnel boring machine is shown ready to ...

Bertha, Seattle's SR 99 Tunneling Machine, Is Finally Done ...

Apr 03, 2017 · The tunneling machine, named for former ... it started digging the tunnel that will hold the ... Bertha the tunneling machine broke through a new ...

Bertha, The Giant Tunnel-Boring Machine Stuck Under Seattle ...

Bertha, The Giant Tunnel-Boring Machine Stuck ... The world's largest tunnel-boring machine, nicknamed Bertha, ... Armando Juarez Named Person Of Interest In Dallas ...

In Seattle, A Giant Tunnel-Boring Machine Named Bertha ...

Apr 05, 2017 · The city has reached a milestone in its plans to move a two-mile section of a state highway underground.

A Tough 4-Year Journey for the World's Largest Tunnel Boring ...

When the tunnel boring machine, named after Seattle's first female mayor, Bertha Knight Landes, crunched through the concrete finish line in the South Lake Union neighborhood, the moment provided a major sigh of relief for the backers of the tunnel.

What's In A Name? Apparently, Forgiveness For Bertha | KUOW ...

She loves dirt and hates sunlight. Seattle Magazine named her one of 2013's most influential people, except she's not really a person. She's Bertha, the world's biggest tunnel boring machine, charged with digging out the replacement path for the Alaskan Way Viaduct under Seattle.

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.

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

Named after Seattle's ... the line of the new tunnel runs from the waterfront, where Bertha was below the ... Bertha is the largest tunnel boring machine ever ...

SR 99 tunnel slated for fall opening: What to know about ...

Mar 26, 2018 · Tunneling started in July 2013 with the world's largest tunneling machine - a 57.5-foot-diameter machine named ... tunnel boring machine Bertha ...

Big Bertha -- world's largest tunnel boring machine -- facing ...

Dec 24, 2013 · 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...

Tunnel Boring Machine Named Bertha - Video Results

'Bertha' to Start Digging to Replace Seattle's Alaskan Way ...

'Bertha' to Start Digging to Replace Seattle's Alaskan Way Viaduct "Bertha," named ... a Japanese company began assembling "Bertha," the tunnel-boring machine that ...