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- What is being bought, for how much, and what happens next.
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Yonge North Subway Extension advance tunnel
Yonge North Subway Extension — Advance Tunnel (North End Connectors)
Awarded to Aecon — Metrolinx now holds 7 positions with this supplier.
Every fact on this page is free. Exact values, dates, award detail and the procurement route open in the Canada edition — one edition is free with one email. Open your free edition · Open this record in the Atlas
- Buyer
- Metrolinx
- Where
- Ontario · Toronto
- Segments
- Civil works
- Technology areas
- Track & civil
- Status
- In execution — Winning bidder selected July 2025 and contract awarded August 2025; the value published in the news release and on the project page is not reconciled
- Value band
- over $1bn
- Currency
- CAD
- Key dates (month)
- RFQ issued April 2023 · RFP issued August 2023 · Shortlist December 2023 · RFP closed March 2025 · Winning bidder July 2025 · Award August 2025
Next step
Recorded award: Aecon — Yonge North Subway Extension advance tunnelling — Aecon Infrastructure Management as applicant lead and construction within North End Connectors
Withheld in the free surface
- Full scope
- Exact value
- How the figure was arrived at
- Key dates (6)
- Published bidders
Full detail withheld: 5 fields. In the Canada edition · See a fully open example
2 sources · all primary
- ● Infrastructure Ontario · Yonge North Subway Extension — Advance Tunnel (project page) (published 2026 · checked 2026-09-12)
- ● Infrastructure Ontario · Contract awarded for the Yonge North Subway Extension advance tunnelling project — fixed price C$1.4bn to North End Connectors (published 2025-08-06 · checked 2026-09-12)
Related tenders
Same buyer first, then the same segment in this market.
| Tender | Buyer | Status | Value band | Next key date |
|---|---|---|---|---|
| GO Expansion ONxpress electrification signalling civils | Metrolinx | Awarded | value not published | |
| Ontario Line rolling stock operations maintenance | Metrolinx | In execution | C$9 billion | |
| Ontario Line southern civil stations tunnel | Metrolinx | In execution | over $1bn | Awarded November 2022 |
Show all 6 related tenders
| Tender | Buyer | Status | Value band | Next key date |
|---|---|---|---|---|
| Ontario Line Pape tunnel underground stations | Metrolinx | In execution | over $1bn | Published April 2023 |
| Scarborough Subway Extension stations rail systems | Metrolinx | In execution | over $1bn | Published February 2022 |
| Scarborough Subway Extension advance tunnel | Metrolinx | In execution | $500m–1bn | Awarded May 2021 |
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Compiled by Watchtower to editorial standards the Managing Partner sets and enforces. Public record only — every datum carries its source.