Northgate Link TBM1 to finish final drive
5 May 2016USA – Sound Transit’s tunnelling contractor, Jay Dee/Coluccio/Michels (JCM) joint venture will finish its remaining Northgate Link tunnel drive, of six, with TBM #1, the transit authority announced April 29.
TBM #1, manufactured by Hitachi Zosen, just completed the future northbound tunnel between the University of Washington Station and the Maple Leaf portal to the north. Crews estimate it will take until summer to transport, reassemble, refurbish and relaunch the TBM from the U District Station site to the University of Washington Station. JCM previously used the refurbished machine to mine the 230 tunnel contract for Seattle's University Link light rail project.
JCM will dismantle TBM #2 and remove it from the U District Station site over the coming weeks.
