Yonge-North Subway Extension

Province: Ontario

City/Region: Toronto/York Region

Image Credit: Metrolinx

17

Project Rank

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Project End: TBD

Project Type: Subway

Industry Sector: Transit

Project Amount: $5.6 billion

Date of Completion: TBD

Funding Source: Public

LEED Status: Certified

Road or Transit Length (KM): 8

Previous Rankings

202617

About The Project

The Yonge North Subway Extension (YNSE) will extend the TTCÕs 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. It will include an approximately 6.3-kilometre tunnelled segment as well as an above-ground segment that will run along the existing rail corridor in the northern section of the route. Once complete, the YNSE will connect with York Region Transit and GO transit services. In Oct. 2025 Infrastructure Ontario and Metrolinx released a Request for Qualifications for the Stations, Rail and Systems (SRS) package.

Project Owner: Metrolinx

Project/Construction Manager: Procurement Agent: Infrastructure Ontario

P3 Team Members/Project Team: Advance Tunnel Project: North End Connectors Construction: Aecon Infrastructure Management Inc., Fomento de Construcciones y Contratas Canada Ltd., Ghella Canada Ltd. Design: EXP Services Inc., TYPSA Inc. Financial Advisor: National Bank Financial, Aecon Concessions, Fomento de Construcciones y Contratas Canada Ltd, Ghella Investments & Partnerships SpA. Early Works: Black & McDonald

Other Key Players: Arcadis (engineer-planning/consulting); Hanscomb (cost consultant); Stantec (management consultant); Entuitive; Accenture

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