Bertha breakthrough: Seattle’s giant tunnel boring machine pushes through wall into rescue pit
Bertha breakthrough: Seattle’s giant tunnel boring machine pushes through wall into rescue pit
Feb 19, 2015
geekwire.com
Watch Bertha, the world’s largest tunnel boring machine, emerge from beneath Seattle
Watch Bertha, the world’s largest tunnel boring machine, emerge from beneath Seattle
Apr 4, 2017
geekwire.com
Bertha breaks through: World's largest boring machine completes tunnel under Seattle
Bertha breaks through: World's largest boring machine completes tunnel under Seattle
Apr 5, 2017
newatlas.com
This is what it looked like as Bertha, the world's largest tunnel boring machine, completed her 1.75-mile journey today in Seattle. Details, more video: via.q13fox.com/BUJi5 | FOX 13 Seattle
0:40
This is what it looked like as Bertha, the world's largest tunnel boring machine, completed her 1.75-mile journey today in Seattle. Details, more video: via.q13fox.com/BUJi5 | FOX 13 Seattle
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FacebookFOX 13 Seattle
Big Bertha – world’s largest tunnel boring machine – facing big Seattle challenge
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Big Bertha – world’s largest tunnel boring machine – facing big Seattle challenge
Dec 25, 2013
CBS News
RIP Bertha: Final piece of Seattle's giant tunneler removed from pit
RIP Bertha: Final piece of Seattle's giant tunneler removed from pit
Aug 24, 2017
komonews.com
Bertha restarts after day-long stoppage
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Bertha restarts after day-long stoppage
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Pieces of tunnel boring machine 'Bertha' slowly being removed from disassembly pit
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Bertha’s big breakthrough is here: Seattle tunnel machine will emerge Tuesday after long journey
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Drone footage reveals Bertha’s exit point as the boring machine reaches halfway point
Oct 3, 2016
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Seattle's tunnel machine Bertha breaks through nearly 4 years later
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