Nightly Maintenance on HWY 401 Westbound between HWY 400, Toronto and HWY 6 SOUTH, Puslinch.
★ Quick facts
- Location
- At HWY 400
- Start date
- Sun, Jul 26, 2026 · 11:30 PM
- End date
- Fri, Jul 31, 2026 · 4:30 AM
- Lanes affected
- 1 Alternating Lane(s)
- Severity
- Heavy
- Source
- Ontario 511Event ID 278065
Traffic context
Traffic on Sun, Jul 26, 2026
This closure is one part of the day. The daily brief shows the event load, other road work, and the likely busy window from the same calendar data.
- Day status
- Severe
- Busy window
- All day; likely busiest 2 AM to 12 PM as traffic factors overlap.
- Main signal
- City of Toronto route closures + Supertri Toronto Triathlon Festival + 311 and Dirty Heads: So Glad You Made It Tour
- Supertri Toronto Triathlon Festival
- F.G. Gardiner Expressway
- Don Valley Parkway
What's affected
HWY 401 (Westbound) at HWY 400 is impacted by construction work. The source lists affected lanes as: 1 Alternating Lane(s).
Corridors to compare: Highway 7 runs east–west north of the 401, while the 407 ETR is a tolled east–west highway. Avenue Road, Yonge Street, and Eglinton Avenue are signalized local corridors. A navigation app can compare current conditions and restrictions across these corridors.
Same-day events
- Supertri Toronto Triathlon Festival
Jul 26 · Exhibition Place / Toronto expressways
- 311 and Dirty Heads: So Glad You Made It Tour
Jul 26 · RBC Amphitheatre
- Tame Impala - The Deadbeat Tour
Jul 26 · Scotiabank Arena
- TTC 509|309 harbourfront - Service change, due to FIFA World Cup 2026™
Jul 26 · Toronto transit
- Barrie Construction
Jul 26 · Toronto transit
- Kitchener Construction
Jul 26 · Toronto transit
- Planned Construction
Jul 26 · Toronto transit
- J. Cole: The Fall-Off Tour
Jul 27 · Scotiabank Arena
- TTC 506|306 Route change due to City and TTC construction
Jul 27 · Toronto transit