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Video: Inside tunneling under the Alaskan Way Viaduct PDF Print E-mail
Written by Randy Post   
Wednesday, 11 May 2016 00:04

From WSDOT's video description:

After nearly a week of tunneling under the Alaskan Way Viaduct, crews are steadily continuing Bertha's underground drive towards downtown Seattle. This video gives you a behind-the-scenes glimpse into how the new tunnel is being built, showcasing the complex operations involved in this project. Massive concrete ring segments are transported to Bertha's segment erector where they are lifted into place, allowing the machine to push forward while the excavated soil is transported along a network of conveyer belts and into a barge moored at Elliott Bay’s Pier 46.

[Source: WSDOT YouTube Channel. Image: YouTube]

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