Yonge North Subway Extension – Stations, Rail and Systems Project
- Location:
- Toronto and York Region
- Project Type:
- Progressive Alliance
- Infrastructure Type:
- Transit
- Contract Value:
- To be announced at Financial Close
About the Project
The Yonge North Subway Extension (YNSE) will extend the TTC’s Line 1 subway service approximately eight kilometres from the existing terminus at Finch Station into the City of Richmond Hill. The project runs through the City of Toronto and York Region, including sections within the City of Vaughan, the City of Markham, and the City of Richmond Hill. Once complete, the YNSE will connect with York Region Transit and GO transit services.
The YNSE is being delivered through the Advance Tunnel contract and the Stations, Rail and Systems contract.
The Yonge North Subway Extension is one of the priority transit projects announced by the Province for the Greater Toronto and Hamilton Area, including the Ontario Line, the Scarborough Subway Extension, the Eglinton Crosstown West Extension and the Hamilton LRT.
Latest News
Project Status
- Request for Qualifications: October 16, 2025
Features
The scope of work includes:
- Five new subway stations and associated bus facilities.
- Emergency exit buildings, traction power substations and tunnel cross passages.
- All rail and signalling systems.
- A train storage facility to support Line 1 operations.
- Connections at Finch Station, including modifications to the existing tail track.
- Integration with existing TTC Line 1 infrastructure and work underway through the advance tunnelling contract, and with the Transit-Oriented Communities program.
- Provisions to enable the Transit-Oriented Communities work.
Project Benefits
- Improves access to transit for area residents
- Reduces daily travel times for commuters
- Economic and community growth along the future transit line with job creation opportunities
- Reduction in traffic congestion, greenhouse gases and fuel consumption by providing a new transportation option
Demonstrating Value
This project is being delivered using a progressive alliance contract model, a collaborative approach to delivering major infrastructure projects. In an alliance model, Metrolinx and the chosen partners form an integrated team. All partners will share responsibility for delivering the project, which encourages innovation and efficiency, and keeps everyone focussed on the best outcome. Learn more about IO’s delivery models and the associated features.
Terms of Use
These project documents are being made available on this website for informational purposes only. Neither Infrastructure Ontario nor Metrolinx makes any representation or warranty regarding the accuracy or completeness of the content or form of these documents.
Infrastructure Ontario and Metrolinx, in their sole and absolute discretion, may choose to make available on this website amendments, revisions, modifications or replacements to these documents. These documents remain open for further revision, modification, replacement or cancellation by Infrastructure Ontario and Metrolinx at any time and in no event shall either Infrastructure Ontario or Metrolinx be responsible or liable, directly or indirectly, for any damage or loss caused or alleged to be caused by or in connection with the use of or reliance on the content of these documents.