Ontario Line

Rank 2022


Image Credit: Metrolinx

Industry Sector: Transit

Project Type: Subway

Project Value: $10.9 billion

Funding Source: Public

Provincial Funding: $10.9 billion

Province: Ontario

City / Region: Toronto

Estimated End Date of Substantial Completion: 2030

The Ontario Line is a 15.6-kilometre stand-alone rapid transit line that will connect the Ontario Science Centre to Exhibition/Ontario Place. Over half of the route is planned to run underground through new tunnels, with the remainder running along elevated and at-grade rail corridor sections of track. Fifteen stations are proposed, with numerous connections to the broader transit network, including GO Transit rail services, the Toronto Transit Commission’s subway Lines 1 and 2, the future Line 5 (Eglinton Crosstown LRT), as well as numerous bus and streetcar routes. The Ontario Line is one of four priority transit projects announced by the Province in 2019 for the Greater Toronto and Hamilton Area. Planning is underway for all four subway projects and procurements for the subway program are being staged to ensure each project is delivered successfully. In December 2020, Requests for Proposals were issued for two of three P3 contracts to be issued in the delivery of the Ontario Line: the Southern Civil, Stations, and Tunnel project and the Rolling Stock, Systems, Operations and Maintenance (RSSOM) project. Metrolinx announced in June 2021 that qualified companies could submit bids for early works that will get Exhibition Station ready for major Ontario Line construction. This work, which is separate from the main contracts for South Civil, stations and tunnel and North Civil, stations and tunnel, will help make sure major upgrades needed at the station can be done quickly and safely while keeping existing GO customers moving.

Project Owner: Metrolinx

Project/Construction Manager: Procurement Agent: Infrastructure Ontario

Environmental Services: AECOM-Environmental Assessment (Early Works)

Other Key Players: Aon (risk advisor); Golder-a member of WSP (geotechnical studies); Stantec (management consultant); Hanscomb (cost consultant); EY (mgmt. consultant); Jacobs; Comtech; HDR (technical advisory services); Hatch; Wood; Entuitive; WSP (TTC Operators representative); LEA (engineer design); INFRATA managing consultant)

Supplier Other: DECAST

Road or Transit Length (km): 19

2022 Rank: 6

2021 Rank: 6


Platinum Elite (20+ Projects)
Platinum (10-19 Projects)
Gold (6-9 Projects)
Silver (3-5 Projects)
Bronze (1-2 Projects)