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Scarborough Subway Extension

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A Subway for Scarborough

The proposed Scarborough Subway Extension will bring the TTC’s Line 2 subway service nearly eight kilometres farther into Scarborough.

It will extend from Kennedy Station to Sheppard Avenue and McCowan Road, providing quick and seamless transit for those heading into and out of the downtown core and those travelling within Scarborough. The extension will replace Line 3 (the Scarborough RT), helping to reduce travel times and improve access to jobs, schools and other key destinations throughout the city.

Metrolinx and Infrastructure Ontario are working together to deliver the Scarborough Subway Extension, which is estimated to be complete by 2029-30.



Daily Boardings

Land Acknowledgement

Metrolinx acknowledges that it operates on the traditional territory of Indigenous Peoples including the Anishnabeg, the Haudenosaunee and the Wendat peoples.

In fact, the Scarborough Subway Extension is taking place on lands covered by the Gunshot Treaty of 1788 and is within the Williams Treaties First Nations’ and Mississaugas of the Credit First Nation territory.

Metrolinx is committed to building meaningful relationships with Indigenous Peoples, and to working towards meaningful reconciliation with the original caretakers of this land.

A Message From the Project Team

Scarborough Subway Extension project director Mark Ciavarro has seen a lot of exciting growth over more than a decade at Metrolinx. Get to know Mark and find out how the project will transform the commute in Scarborough and beyond.

Where will it take me?

Stations are proposed at Lawrence Avenue and McCowan Road, Scarborough Centre, and Sheppard Avenue and McCowan Road.

The proposed extension will connect to a number of other transit systems to make it easier to travel within the city and beyond. Kennedy Station will provide connections to GO Transit rail services and the Eglinton Crosstown LRT, and the proposed station at Scarborough Centre will connect to GO and proposed Durham-Scarborough Bus Rapid Transit services. There will also be local TTC bus connections at every stop along the extension.

All alignments, stations, stops, locations, names and quantity of stations/stops are conceptual and subject to change.

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By the Numbers

(All numbers are approximate, based on current plans for the project)

Number of proposed stations 3
Proposed connections to other transit options Up to 6
  • 1 GO Train line – Stouffville
  • Up to 2 local rapid transit lines – Line 5 (Eglinton Crosstown); planned connection to future Sheppard Subway Extension
  • 3 bus services – GO Transit, Durham Region Transit and TTC buses
Route length 7.8 km
Ridership 105,000 daily boardings
Increase in transit use 52,000 daily boardings by new users
Improved access to transit 38,000 more people within walking distance to transit
Improved access to jobs 34,000 more jobs within walking distance to transit
Yearly reductions in greenhouse gas emissions 10,000 tonnes

Faster and More Convenient Travel

The proposed Scarborough Subway Extension will improve the customer experience by providing better access to the subway system and minimizing the number of transfers required to get to and from downtown Toronto.

It will also provide a station north of Highway 401 at Sheppard, meaning customers from the northern parts of Scarborough will also spend less time on buses. For drivers, there will be fewer buses on the road as they will be able to terminate at Sheppard and McCowan instead of Scarborough Centre.

Contact Us

Have a question or concern about the Scarborough Subway Extension? Our dedicated community relations team is available 24/7 through phone at 416-202-7900 or email at

We’ll be hosting a virtual engagement to meet our tunnel builder on September 27, between 6 :30 to 7 :30 PM. Register now and submit your questions.

Recent Developments

September 17, 2021

  • Metrolinx and Infrastructure Ontario have issued the RFQ for the Stations, Rail and Systems (SRS) package for the Scarborough Subway Extension project, inviting industry leaders to submit their qualifications to bid on this package. Learn more here.

June 23, 2021

  • Metrolinx officially broke ground on the three-stop Scarborough Subway Extension and the signs of progress are starting to become very real, especially at the northeast corner of Sheppard and McCowan. Learn more here.

May 25, 2021

  • Metrolinx and Infrastructure Ontario have awarded the advance tunnel contract to Strabag to design, build and finance the tunnel for the Scarborough Subway Extension. Learn more here.

April 2021

March 5, 2021

  • We’ve identified the team who will design and build the tunnel for the Scarborough Subway Extension, bringing us even closer to reliable, convenient rapid transit for Scarborough. Learn more.

August 20, 2020

  • Metrolinx and Infrastructure Ontario issued the Request for Proposals (RFP) for advanced tunnelling, inviting three shortlisted teams to begin preparing submissions for how they will deliver the project if selected. Infrastructure Ontario and Metrolinx expect to award tunnelling contracts in mid-2021. Read more about the RFP and shortlisted bidders here.

If you have any questions about the Scarborough Subway Extension, please contact

In The News

Search begins for teams interested in building Scarborough Subway Extension stations

September 2021

The Scarborough Subways Extension project has now reached an important stage – the search for experts who want to build the stations, lay down the tracks, and install all the technology that connects them. In this feature, we look at what the ‘Request for Qualifications’ announcement means, as well as how an extended Line 2 subway will create a more connected and reliable transit experience.

First look at mighty tunnel boring machine used on Scarborough Subway Extension

September 2021

As crews continue to prepare the entry point for tunnelling of the Scarborough Subway Extension, workers from halfway around the world are building the project’s tunnel boring machine and getting it ready for its big journey across the Atlantic Ocean.

Crews on Scarborough Subway Extension prepare for excavation

August 2021

Construction at the northeast corner of Sheppard Avenue East and McCowan Road is in full ‘drill mode’ as crews make progress on expanding the TTC’s Line 2 subway service almost eight kilometres further into Scarborough. Here’s where those crews are at, and where they’re going.

Breaking ground on the Scarborough Subway Extension

June 2021

Metrolinx officially broke ground on the three-stop Scarborough Subway Extension on June 23 and the signs of progress are starting to become very real, especially at the northeast corner of Sheppard and McCowan, where crews are busy building the launch shaft for the tunnel boring machine.

Read more on Metrolinx News…