homeWelcome, sign in or click here to subscribe.login
     


 

 

Construction


Subscriber content preview

November 26, 2015

Bertha's cutterhead goes for a test spin

By JOURNAL STAFF

SEATTLE — It's been nine months since Seattle Tunnel Partners has rotated the cutterhead of Bertha, the broken tunnel machine stuck along the Seattle waterfront.

Last week, STP began rotating the machine's cutterhead a few degrees at a time, stopping periodically to take measurements before completing a full rotation.


 
. . .


To read this story in full login or purchase a subscription.




Email or user name:
Password:
 
Forgot password? Click here.