Scarborough Subway Extension

Rank 2021


Industry Sector: Transit

Range $3.56 billion

Specific Sector: Subway

Project Value: $3,560,000,000

Government Funds Involved: P3

Funding Source: P3

Location Ontario

Estimated End Date of Substantial Completion: 2026

The Scarborough Subway Extension is a 7.8 kilometre extension of TTC’s 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. Tunnelling is one of the first phases of work for the project. A separate advance tunnelling contract will be issued to help move the project forward on an accelerated timeline.

On August 20, 2020, the province invite the selected teams from the Request for Qualifications process to respond to an RFP that details how they plan to design and deliver the tunnelling work for the SSE. Upon evaluating the proposals received, Infrastructure Ontario and Metrolinx expect to award this tunnelling contract in mid-2021.

Project Owner: TTC

Project/Construction Manager: Scarborough Link Joint Venture: Parsons, Hatch, and WSP (Project Management)

Engineer: Wood (consulting)

Contractor: Hatch (tunnel design); WSP (systems design and management); AECOM (station design)

Environmental Services: AECOM (environmental services)

Other Key Players: Aon (risk/insurance advisor to authority); EY (advising gov’t.); Golder (owner’s consultant); Hanscomb (station designer’s cost consultant); Englobe (geotechnical investigation); AGAT Labs; Comtech (property consulting services); Jacobs (quality mgmt. and risk assessment); GHD (geotechnical studies); Entuitive

Road or Transit Length (km): 7.6

Financing Detail: The city is in the process of selecting a partner to construct and maintain the system through the AFP process.

2020 Rank: 20

2019 Rank: 20

2018 Rank: 16

2017 Rank: 14

2016 Rank: 11

2015 Rank: 11

2014 Rank: 13

Municipal Funding Number: 910000000