Seattle's Big Bertha Tunneling Machine Is Finally Back

Seattle's Big Bertha Tunneling Machine Is Finally ... Bertha's most precarious work lies ahead as it digs through waterlogged ... 7 of the World's Wackiest ...

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

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 u

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The Spin Zone: Bertha Maker Hitachi Zosen Bites Back

Last April, as Seattle’s tunnel-boring machine, Bertha, closed in on completing its long-delayed task, Hitachi Zosen, the Japanese maker of the machine, was surprised to learn its executives weren’t invited to the ceremony celebrating the moment when Bert

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'Bertha', the world's largest tunnel boring machine. She

'Bertha', the world's largest tunnel boring machine. She clears a subterranean tunnel that measures 57.5 feet. ... Want to hear what the world's largest-diameter tunneling machine has to say? Meet Bertha. ... Bon Voyage, Big Bertha! Seattle Digs a Cave Fo

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Mysterious 'unknown object' blocks progress of huge

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 - struck something it couldn’t bore thro

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Alaskan Way Viaduct - Tunneling

The tunneling machine known as Bertha began tunneling beneath Seattle in July 2013 (photo at right: ...

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Big Bertha, world’s largest tunnel-boring machine, arrives

The “Big” in Bertha’s name isn’t there for the catchiness. It’s there because it’s apt. With a 57-foot diameter and a length of a football field, Big Bertha is …

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Big Bertha, world's largest tunnel-boring machine, arrives

The “Big” in Bertha’s name isn’t there for the catchiness. It’s there because it’s apt. With a 57-foot diameter and a length of a football field, Big Bertha is the world’s largest tunnel-boring machine.

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Alaskan Way Viaduct - Home

For decades, surface Alaskan Way stretched along the downtown waterfront, connecting travelers to the waterfront piers and providing north-south passage through downtown.

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Meet Big Bertha, The World's Largest Tunnel Boring Machine

Big Bertha was manufactured and supplied by the Hitachi Zosen Corporation to Seattle Tunnel partners for the SR 99 tunneling project. It measures 57.2 feet (57.2 m) in diameter, which makes it the largest tunnel boring machine in history.

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Anything but boring: World's largest tunnelling machine

Big Bertha, Seattle's famous tunnel boring machine, ... World’s largest tunnelling machine, Big Bertha, is stuck under Seattle, Tweets an interview.

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Excavator Attachments – Diamond Mowers

Excavator Rotary Mowers: - 40" Mini Excavator Rotary Mower- Slices up to 2" trees or brush - Available in 50", 60" or 72" Rotary Mower- Cuts up to 8" trees or brush Appetite For Destruction. Excavator Forestry Mulchers: 36" Forestry MulcherCuts 6" materia

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

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. ... Big Bertha - world's largest tunnel borin ...

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Save time, stay dry on foot in Seattle’s ‘hidden

Seattle native Eric Makus explores Seattle's little known undercover passages that let people in the know walk for several blocks without stepping outside or being hit by rain.

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Big Bertha – world’s largest tunnel boring machine – facing

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 Blackstone reports on what the high-tech machinery can do, as well as its latest challenge digging in the

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largest tunnel boring machine seattle | Best Mini

Big Bertha's Two-Mile Subterranean Journey Is Almost Over. More than 150 feet below the streets of Seattle, Bertha presses on, boring a 57.5-foot diameter tunnel underneath the city. The largest tunnel boring machine (TBM) in the world when it was built,

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Oil-Electric: Shoebox #1, Canadian Collieries (Dunsmuir

Canadian Collieries (Dunsmuir) Limited #17, Snoqualmie Washington, date unknown. Years ago I bought a shoebox full of locomotive photographs at a bookstore at the Pike Place Market in Seattle.

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bertha world's largest tunnel-boring machine - Cutting Head

Workers look on as they lift the machine head from Bertha, the world's largest tunnel-boring machine, ... Big Bertha – world's largest tunnel boring machine ...

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The Penguins of Madagascar (Western Animation) - TV Tropes

A description of tropes appearing in Penguins of Madagascar. A spin-off of the Madagascar films that aired on Nickelodeon. It is an All-CGI Cartoon featuring …

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Something Called "The Object" Stops World's Largest Tunneling

Bertha, the world's largest tunneling machine, churning through the rock and mud beneath Seattle, has hit a mysterious roadblock—so mysterious, it is only known for now as "the object."

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