World's Larget tunneling machine to be scrapped

This is drone footage inside a tunneling machine. Everything you see in the video after 2:39 minute will be taken out through an access pit in small sections and recycled sometime this year.
They call it Bertha and it's a $2 Billion project


Published on May 3, 2016

Just a few days before the SR 99 tunneling machine started tunneling under the Alaskan Way Viaduct, the Washington State Department of Transportation flew a video-equipped drone through the SR 99 tunnel to show Seattle Tunnel Partners’ construction progress. On an average day, the tunnel is bustling with construction. To avoid disrupting crews, this video was recorded in between regular work shifts.