Seattle, WA: Fly Through the Entire SR 99 Tunnel

Posted by Infra on Tuesday, October 24th, 2017

Now that the tunneling machine Bertha’s work is complete, it’s possible to fly a drone with a video camera from end-to-end inside Seattle’s SR 99 tunnel. In two minutes, you’ll see two miles of ongoing construction work. The upper roadway of the tunnel’s double-deck highway is more than 85% complete. Up next? Installation of the lower roadway, and all the systems it takes to operate a modern tunnel.

–wsdot on YouTube

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This entry was posted on Tuesday, October 24th, 2017 at 11:05 am and is filed under Local, Public Transportation, Roads, Show Us Your Infra, Transit, Urban Planning . You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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