Line 5 Eglinton

Line 5 Eglinton, also known as the Eglinton Crosstown LRT or the Crosstown, is a light rail transit line in Toronto, Ontario, Canada. Operated by the Toronto Transit Commission (TTC) as part of the Toronto subway, it has 25 stations and is 19 kilometres (11.8 mi) long. Service on the line began on February 8, 2026, as part of a phased opening.

The line was conceived in 2007 during the administration of Toronto mayor David Miller as part of Transit City, a large-scale transit expansion plan that included several light rail lines proposed across the city. While the plan was later dropped by successive municipal governments, only the Eglinton Crosstown LRT received support and funding from the Government of Ontario under Premier Kathleen Wynne.

The line was constructed in two phases. The first phase of the 19-kilometre (12 mi) line includes 25 stops along Eglinton Avenue, from Mount Dennis station mostly underground to Laird station, after which it runs predominantly at-grade within the street's median to Kennedy station in Scarborough, where it connects underground with Line 2 Bloor–Danforth, and GO Transit. Automatic train control is used in the tunnelled sections. This first phase had an estimated cost of CA$12.82 billion; the cost when the contract was awarded was pegged at $9.1 billion, although the cost was originally estimated at $11 billion.

A second phase, a 9.2-kilometre (5.7 mi) westward extension from Mount Dennis, will run mostly underground or elevated to Renforth station, with seven new stations. The second phase is expected to cost $4.7 billion and to be completed by 2031. Construction of the westward extension to Renforth station began in July 2021. The extension would bring the Toronto subway system into Mississauga.

Two future extensions were planned: an eastern extension to the University of Toronto Scarborough and a northwestern extension towards Toronto Pearson International Airport. In 2022, the city of Toronto converted the eastern extension into a city project and a separate line known as the Eglinton East LRT using light rail technology incompatible with the Line 5 technology.

Construction of the first phase of the line began in 2011 and was originally planned to be complete in 2020, but the opening date was revised several times, with Metrolinx next expecting the line to be substantially complete by September 2022. After revising the opening date of the central section to 2023 and then, amid ongoing legal action against Crosslinx (the construction consortium), Metrolinx stated they believed there was no credible schedule to complete the project. By September 2023, the central section was estimated to be 97 percent complete, although Metrolinx refused to provide an estimated completion date. On December 2, 2025, after a 30-day trial of the line, Metrolinx announced it would hand over operations to the TTC, which would determine an opening date. In early February 2026, the TTC set February 8, 2026, as the start date for a phased opening.