Bertha’s Big Day

A few photos from Bertha’s breakthrough at the end of the SR99 tunnel.

WSDOT Drone Footage from the Bertha breakthrough event.
A WSDOT drone flying through the dust cloud at the celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)
One of the first views of the Bertha tunneling machine at the celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)
A clear view after the dust cleared after the Bertha machine paused at the at the celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)
Detail view of the cutterhead of the Bertha tunneling machine at the celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)
Gov. Inslee with King County Executive Dow Constantine and other officials at the Bertha celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)
WSDOT Secretary of Transportation Roger Millar stands with Gov. Inslee during a brief press conference following the celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)
Gov. Inslee and staff from Dragados USA at the Bertha celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)
Officials and staff look into the Bertha construction site at the celebration in Seattle on April 4, 2017. (Official Governor’s Office Photo)