TBM Libby, operated by the Ontario Transit Group of Ferrovial Construction and Vinci Construction Grands Projets, completed a 1.3km drive to arrive at the future King West Station in downtown Toronto.
The TBM began tunnelling from the launch shaft east of Exhibition Station in April this year and has installed around 780 tunnel lining rings along the route.
Following the breakthrough, crews will carry out maintenance on the machine before it continues tunnelling towards the future Chinatown Station.
A second TBM – Corkie – is excavating a parallel tunnel and will arrive at King West Station in December.
Once complete, the 15.6km Ontario Line will connect Exhibition Place to Line 5 Eglinton at Don Valley Station. It is part of Ontario’s C$70bn (€44.5m) investment in public transport, including the largest subway expansion with the Scarborough Subway Extension, Eglinton Crosstown West Extension and Yonge North Subway Extension.
