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SR 99 Tunnel – From Space Needle to the Stadiums
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...
AECNews Releases
A Drone’s View of Bertha’s Breakthrough in Seattle
The SR 99 tunneling machine, Bertha, breaks through to daylight on April 4, 2017 near Seattle’s iconic Space Needle after tunneling 1.7 miles...
