Tunneling is well underway with multiple early TBM breakthroughs on the Broadway Extension to the Millennium Line, in Vancouver
In Vancouver, the two Herrenknecht TBMs are boring twin parallel tunnels for the Broadway subway extension to the Millennium Line, and recent months has seen the first breakthroughs.
Above: Underside view of segments in TBM set up to prepare for tunneling on Broadway Extension, in Vancouver PHOTO CREDIT: BC GOVT TRANSPORT MINISTRY Summer 2023 | 23