Project lead: Ministry of Transportation of Ontario
The Ontario Ministry of Transportation is carrying out rehabilitation and emergency repair work in the Brock Road and Highway 401 area.
The work includes portions of Brock Road, the CN overpass structure, and the Highway 401 bridge.
This project will help maintain critical transportation infrastructure and support the safe movement of people and goods through an important regional corridor.
Construction impacts:
- The eastbound Highway 401 on-ramp at Brock Road is currently closed and is expected to reopen in late fall 2026. The nearest eastbound Highway 401 access points are at Whites Road in Pickering and Westney Road in Ajax.
- Expect significant traffic delays. Brock Road is reduced to two lanes in each direction for the duration of the project.
- A series of additional weekend lane closures is planned for August and September to accelerate critical emergency repairs to the Highway 401 bridge. During these closures, Brock Road will be reduced to one lane in each direction from Friday at 10:00 pm until Monday at 5:00 am.
Planned weekend closures:
- Closure 1: Tentatively scheduled from Friday, August 21 at 10:00 pm until Monday, August 24 at 5:00 am.
Additional closure dates will be posted here as they are confirmed.
The weekend closures are required so the Ministry’s contractor can safely remove and repair large sections of deteriorated concrete beneath the bridge lanes without live traffic travelling overhead.
Timelines are subject to change.
Project links:
Ontario 511 Traffic Updates
Contact:
mtoinfo@ontario.ca