Alaskan Way Viaduct - Follow Bertha

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.

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Bertha reaches daylight - Feb. 19, 2015 - YouTube

Feb 18, 2015 · On Feb. 17, 2015, Bertha, the SR 99 tunneling machine, began mining into the southern wall of the pit crews will use to access and repair the machine. At mid...

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Tunnel Boring Machine - You find here 22 suppliers from Germany Sweden Hungary Turkey and China. Please obtain more information on spare parts, servicing, maintenance, Repair, repair or accessories directly from the registered companies.

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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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How It Works: Evergreen Line Tunnel Boring Machine - YouTube

Mar 05, 2015 · Ever wonder how, Alice, the Evergreen Line's tunnel boring machine (TBM) ... Bertha reaches daylight - Feb. 19, 2015 - Duration: 2:17. wsdot 79,463 views.

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Tunnel boring machine - Wikipedia

A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.They may also be used for microtunneling.

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Bertha (tunnel boring machine) - Wikipedia

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Title: Tunnel boring machines feb 2015, Author: Luigi Franco LAMANNA, Name: Tunnel boring machines feb 2015, Length: 25 pages, Page: 1, Published: 2015-02-13.

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Tunnel boring machine completes excavation of tunnel ...

Tunnel boring machine completes excavation ... the TBM resumed work and excavation of the tunnel was completed in February 2015. The tunnel and TBM are only ...

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Tunnel Boring Machines: A Recap | Crosstown

The Crosstown tunnel boring machines ... February 2013: West TBM parts ... April 2015: The west TBMs make ...

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Bertha breaks into repair vault | The Today File | Seattle Times

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Global Tunnel Boring Machine (TBM) Industry Report 2015

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2015 - CBBT Chesapeake Bay Bridge Tunnel

February 13, 2015 eNews ... CBBT Announces Top 10 Names for the Parallel Thimble Shoal Tunnel Project's Tunnel Boring Machine CAPE CHARLES, VA ...

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7636 Federal Register /Vol. 80, No. 28/Wednesday, February 11 ...

7636 Federal Register/Vol. 80, No. 28/Wednesday, February 11, 2015/Notices DEPARTMENT OF LABOR ... with an Earth Pressure Balanced Tunnel Boring Machine (EPBTBM).

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Tunnel construction - Wikipedia

In February 2010, Aker Wirth delivered a TBM to Switzerland, ... The Farnworth Tunnel in England was enlarged using a tunnel boring machine (TBM) in 2015.

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