GO Expansion Project – Off Corridor
Province: Ontario
City/Region: Greater Toronto-Hamilton Area
Image Credit: Metrolinx
NR
Project Rank
Project End: 2025
Project Type: Rail
Industry Sector: Transit
Project Amount: $619 million
Date of Completion: 2025
Funding Source: Public
Provincial Funding: Metrolinx allotment from the province: $619 million
Previous Rankings
| 2025 | 98 |
| 2024 | 89 |
| 2023 | 86 |
| 2022 | 82 |
| 2021 | 71 |
| 2020 | 75 |
About The Project
The Off-Corridor Works package is one of the three packages of work through which the GO Rail Expansion program is being delivered. The Existing Stations Renovations project forms the majority of the Off-Corridor Works package and will involve improvements at existing multi-modal stations along the Lakeshore West, Milton, Barrie, Kitchener, Lakeshore East, Stouffville, and Richmond Hill GO Rail Corridors. The comprehensive goal of the Off-Corridor program is to improve multi-modal station access across GO Transit to support forecasted ridership growth, as well as provide more local service integration with subways, streetcars, LRTs, buses, etc.
Project Owner: Metrolinx
Project/Construction Manager: Infrastructure Ontario
P3 Team Members/Project Team: 4TRANSIT JV (WSP/Parsons/Hatch) (WSP: technical advisory work and detailed station design as part of JV)
Other Key Players: Parsons (systems work); Golder (WSP) (geotechnical services); Deloitte, Accenture (project manager); AECOM (engineer-technical); Wood (WSP) (environmental engineer); Arcadis-IBI Group; LEA Consulting (engineer-consulting & structural); R.V. Anderson Associates Ltd.; Turner & Townsend (project controls); E.S. Fox; Stantec (design services); AGAT Labs; A.W. Hooker Associates Ltd. (cost consultant); TULLOCH; Egis; GHD (engineer-design); KPMG
Legal: Borden Ladner Gervais (for the owner); Dentons; Torys
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

