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Seattle Tunnel Machine Bertha Completely Disassembled

from The Spokesman-Review

The last piece of the world's largest tunnel-boring machine has been lifted from its disassembly pit beneath Seattle. State Department of Transportation officials announced the latest milestone recently in the multibillion-dollar venture to replace an aging highway along the city's waterfront. The machine known as Bertha finished tunneling its 1.75-mile journey in April. more


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