Ontario Line

A new 15.6-km subway line in Toronto that will run from Exhibition Place, through downtown, all the way to Line 5 Eglinton at Don Mills Road.

Projects & Programs
Ontario Line
Notices
Permanent works at Ordnance Triangle Park Emergency Exit Building (EEB)

Permanent works at Ordnance Triangle Park Emergency Exit Building (EEB)

Expected Duration

May 20, 2026 - Dec 31, 2026

Working Hours

Monday to Friday, 7:00 a.m. to 7:00 p.m.

Date of Notice

May 20, 2026

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This map shows the work area at Ordnance Triangle Park, located in the yellow stripped area, as well as the construction vehicle access route.

What is Happening?

Construction is underway at Ordnance Triangle Park for an Ontario Line emergency exit building (EEB), located between Exhibition and King-Bathurst stations.

Work has progressed to the next phase, which includes completing permanent works within the shaft, installing retaining walls along the north and south sides of the site, and backfilling portions of the land as construction advances.

What to expect

Where possible, lights from equipment will be positioned away from residential homes to keep light pollution levels low.
Crews will take precautions to monitor and reduce dust.
Work areas will be clearly marked or fenced off to ensure public safety.
Work may be delayed or rescheduled due to weather or unforeseen circumstances.

Rebar installation, waterproofing, formwork, and concrete pouring will continue to shape the structure, including construction of emergency stairwells connecting track level to the surface and above-grade level.
Once underground levels are complete, the tower crane will be removed and replaced with a temporary mobile crane until building completion.
Retaining wall construction will take place along the eastern perimeter of the site to support future public space and allow for backfilling (see map above).
Backfilling of the site will occur as the retaining wall is completed.
Construction vehicles will continue to use the Metrolinx access road (east of Strachan Avenue, north of Ordnance Street), parallel to the Kitchener, Milton, Barrie and UP Express rail corridor.
Neighbours will see equipment on site including a tower crane, mobile crane, excavators, loaders, concrete trucks, pump trucks, and dump trucks.
Some noise from construction activities is expected. Measures are in place to reduce impacts to nearby residents and businesses, including monitoring air quality, noise, and vibration.
Mitigations are in place to limit the impact of debris and dirt on city streets.
Crews may arrive on site earlier to prepare machinery and equipment.
All construction schedules are subject to change and weather permitting.
All necessary permits have been obtained.
For more information about upcoming station work, please visit metrolinx.com/ontarioline or sign up for our e-newsletter.
Learn more about the measures we take to keep communities safe as we build more transit connections: metrolinx.com/KeepingCommunitiesSafe

Noise and Vibration

Residences and businesses in the area may experience noise and vibration caused by construction equipment related to this work.
Crews will take measures to minimize disruptions to the surrounding area wherever possible.