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 McClatchy
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 McClatchy

Watch underground drone flight from Space Needle to CenturyLink Field

October 20, 2017 01:15 PM