How did we get here? A look back on Seattle’s tunnel machine Bertha
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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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This is what it looked like as Bertha, the world's largest tunnel boring …
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FacebookFOX 13 Seattle
Meet the world's largest tunnel boring machine: Bertha! 🔥 A giant investment of 80 million articles, it is a real electric wonder with a length of 99 meters, a weight of 6,100 tons and a cutting head of 17.5 meters. 🚀 With 600 cutting discs, he completed the Alaskan Way Viaduct tunnel project in just 14 months and more than 5,000 people participated in its presentation. Follow us for more information about such huge machines! #EngineeringWonders #Bertha #TunnelingMachine #machine #tbm #giantma
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Bertha's Two-Mile Subterranean Journey Is Almost Over
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