Photo shows earlier work on the elevated guideway section of the Hazel McCallion Line near Mississauga’s downtown core and Highway 403. (Photo: From Metrolinx video)

Project leaders in charge of building the $4.6-billion Hazel McCallion Line in Mississauga are talking about girders, foundational elements and a bridge deck superstructure as they make headway on the biggest transit initiative in the city’s history.

Workers are in the process of completing the elevated guideway section of the Mississauga-to-Brampton light-rail transit line, Metrolinx, the provincial agency overseeing the massive infrastructure project, said earlier.

The elevated guideway, recently described by Metrolinx as a “landmark structure,” will eventually bring LRT trains from Hurontario Street into the busy Square One Shopping Centre area of Mississauga’s downtown core.

As one of the key components of the 18-kilometre Hazel McCallion Line, the elevated guideway travels above Highway 403 just steps away from Ontario’s biggest shopping centre.

Metrolinx officials also called that section of the line “one of the most complex parts of the project.”

All girders now installed

Late last week, Metrolinx told INSAUGA Canada that vehicle testing for the Hazel McCallion Line is underway and “construction of the elevated guideway over the Highway 403 interchange is progressing, with all girders now installed.”

Continuing, the agency said, “with foundational elements now in place, work is focused on completing the bridge deck superstructure.”

Construction on the elevated guideway began in 2021 and “is now nearing completion,” project leaders said.

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Elsewhere along the LRT line, “work continues to progress at Port Credit GO station,” where “the south building exterior wall system is nearing completion,” officials said.

Metrolinx also noted that track work has finished at 47 of 55 intersections along the corridor, “with systems installations set to follow.”

When completed (the latest estimate sometime in 2028, Metrolinx has said), “the 18-kilometre Hazel McCallion Line will bring a new, reliable transit to a rapidly growing region. The new line will feature 19 stops, travel through two urban growth centres and connect commuters to major transit systems including GO Transit, the Mississauga Transitway, Brampton Transit, ZUM and MiWay.” 

What do City of Mississauga officials think? 

City of Mississauga officials — the mayor, councillors and senior staff — had long expressed frustration at project delays prior to meeting behind closed doors in April 2026 with Metrolinx CEO Michael Lindsay and other agency top brass. Lindsay took over the position permanently in July 2025.

Mayor Carolyn Parrish and other city officials had been pounding the table for more than a year, saying the well-behind-schedule Hazel McCallion Line project was hurting businesses and testing drivers’ patience daily. Furthermore, the city said at the time, it was not receiving regular project updates from Metrolinx.

The LRT route was initially scheduled to open to riders in fall 2024. Metrolinx brass told city officials in April they’re now targeting sometime in 2028 for full completion and opening.

Parrish told INSAUGA Canada on Tuesday that Metrolinx has done a much better job of keeping the city updated since the two sides met in April.

Happier with progress on the line

She’s also happier with progress being made on the line since the agency’s new CEO took the reins permanently.

“He responds to any questions we may have,” Parrish said, adding City of Mississauga staff have “received regular updates and the clearly visible progress (on the LRT line) is very evident.”

Once completed, the elevated guideway will allow LRT trains to run along Hurontario Street overtop the busy Highway 403 and connect with the Square One area.

How do you build a rail bridge over an active highway while keeping traffic moving below? Have a watch to find out!

The Hazel McCallion Line’s elevated guideway over Highway 403 is nearing completion after years of careful planning, engineering, and construction. This landmark… pic.twitter.com/xf8v0XrzKH

— Metrolinx (@Metrolinx) August 13, 2026

In January 2025, project officials said work crews had just put in place the large concrete structures that are “the building blocks” for the elevated guideway, described as a “unique” part of the LRT.

“This elevated section of track will connect the future City Centre (LRT) stop at Rathburn Road and Robert Speck stop at Hurontario Street, providing easy access to this core area of the city,” Metrolinx said at the time.

Project leaders also noted a completed 18-kilometre Hazel McCallion Line, from its southernmost point in Port Credit all the way north into Brampton, “will cross four separate highways” — the QEW and highways 403, 401 and 407.

In a March 2026 update (see video in link below), Metrolinx said the elevated guideway was taking shape as concrete was being poured and structural sections were being installed at that time.

Take a look at the construction progress on the elevated guideway over Highway 403 in Mississauga. Crews are now pouring concrete, installing structural sections, and placing safety barriers as work continues along the Hazel McCallion Line. (1/2) pic.twitter.com/IhzfwNG8kN

— The Hazel McCallion Line (@HMcCallionLine) March 5, 2026

In February of this year, City of Mississauga officials received word from Ontario Premier Doug Ford that money for a long-promised City Centre LRT loop as part of the Hazel McCallion Line project was coming from the province.

Addressing a breakfast meeting hosted by the Mississauga Board of Trade at the Mississauga Convention Centre, Ford verbally committed to making the $1.6-billion “downtown loop” a reality.

The provincial government promised in January 2024 it was reinstating the downtown loop as part of the massive LRT project after having dropped it from plans in a cost-cutting move in 2019. But until early February 2026, city officials were skeptical, saying they hadn’t received any firm commitment from Ford or the province.

The city says it’s “crucial” that the loop be completed in Mississauga’s downtown core, where the population is expected to double to 100,000 by 2050.

The loop, or downtown extension as it’s also known, will run off of Hurontario Street near Square One Shopping Centre and circle around the highrise condos and office buildings, and other businesses in the City Centre, when completed.

(Source: Metrolinx)

 


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