Scarborough Subway Extension
Province: Ontario
City/Region: Scarborough
Image Credit: Government of Ontario
18
Project Rank
Project End: 2030
Project Type: Subway
Industry Sector: Transit
Project Amount: $5.5 billion
Date of Completion: 2030
Funding Source: P3
LEED Status: Certified
Road or Transit Length (KM): 7.8
Previous Rankings
| 2025 | 15 |
| 2024 | 14 |
| 2023 | 14 |
| 2022 | 14 |
| 2021 | 21 |
| 2020 | 20 |
| 2019 | 19 |
| 2018 | 16 |
| 2017 | 15 |
| 2016 | 11 |
| 2015 | 11 |
About The Project
The Scarborough Subway Extension is a 7.8-kilometre extension of TTCÕs Line 2 Bloor-Danforth Subway, from the existing Kennedy Station northeast to McCowan Road/Sheppard Avenue. The line will include three new stations at Lawrence Avenue and McCowan Road, Scarborough Centre and a terminal station at McCowan Road and Sheppard Avenue. The project is being delivered in two large contracts: the Stations, Rail and Systems package and the Advance Tunnel project.
Project Owner: Metrolinx
Project/Construction Manager: Procurement Manager: Infrastructure Ontario
P3 Team Members/Project Team: DBF Team (Advance Tunnel contract): Strabag Scarborough Project Inc. • Construction Team: Strabag Inc. • Design Team: ARUP Canada Inc., Brian Isherwood & Associates Ltd. • Financial Advisor: Strabag Inc. Stations, Rails & Systems contract: Scarborough Transit Connect Applicant Leads: Aecon Infrastructure Management Inc., FCC Construction S.A. Design Prime Team Member: Mott MacDonald Canada Ltd. Construction Prime Team Members: Aecon Infrastructure Management Inc., FCC Construction S.A.
Engineer: OneT+ (Gannett Fleming, Arcadis-IBI Group, GHD)
Environmental Services: Englobe
Other Key Players: Jacobs (quality mgmt. and risk assessment); Accenture (project/construction manager); WSP (TTC operator's representative); Stantec (consulting engineer); Wood (WSP) (consulting engineer/geotechnical studies); Dillon Consulting (technical advisory services); Entuitive; EY (management consultant); GFL (excavation, shoring, soil management); Hanscomb (cost consultant); Parsons (consulting engineer); R.V. Anderson Associates Ltd.; Turner & Townsend (project controls/estimating); Montrose Environmental (environmental specialists); AGAT Labs (environmental assessment); Aon, INTECH (risk advisor); Egis; LRI Engineering; DECAST
Architects: Hatch (tunnel design/consulting engineer); WSP (SSE systems); AECOM (station design)
Legal: Borden Ladner Gervais (for the owner); Norton Rose Fulbright (for Strabag Scarborough Project Inc.); Dentons (legal advisor)
Key Players
Key Players’ recognize the organizations whose work, knowledge, and expertise go into constructing and delivering the significant projects that make our annual list.
Gold (15-19 Projects)
Silver (10-14 Projects)
Bronze (5-9 Projects)
- ACCIONA Infrastructure Canada
- Accuracy
- Alstom
- Associated Engineering
- Black & McDonald
- Blake, Cassels & Graydon
- Cartel Communication Systems
- COWI
- Davies Ward Phillips & Vineberg
- DECAST Ltd.
- DIALOG
- EBC Inc.
- FlatironDragados
- GeoVerra
- HDR
- Hemmera
- Infrata
- Kasian
- Lakeland Consulting Inc.
- Lavery, de Billy
- LRI Engineering
- McMillan LLP
- Montrose Environmental
- Mott MacDonald
- Mulvey & Banani
- NORR Architects & Engineers Ltd.
- Osler
- Parkin Architects Ltd.
- Plenary Americas
- R.V. Anderson
- STRABAG Inc.
- Tiree
- Torys

