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Gigantic Mysterious Object In Seattle Tunnel…Could Be Sealed Off .

Gigantic Mysterious Object In Seattle Tunnel…Could Be Sealed Off

Crews try to identify mystery object blocking Seattle tunnel … A giant underground boring machine called “Bertha” was stopped in it’s tracks when it hit something it just couldn’t cut through. That’s big news as these machines can cut through just about anything. Theories range from a boulder to an ...

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