ConstructionMon, Sep 21, 2026 – Wed, Sep 23, 2026HWY 401 (Westbound)
Nightly Maintenance on HWY 401 Westbound Transfer at HWY 404, Toronto.
Construction · Mon, Sep 21, 2026 – Wed, Sep 23, 2026
★ IMPACT 4/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- At HWY 404
- Start date
- Mon, Sep 21, 2026 · 11:00 PM
- End date
- Wed, Sep 23, 2026 · 5:00 AM
- Lanes affected
- 1 Right Lane(s)
- Severity
- Heavy
- Source
- Ontario 511Event ID 307993
Traffic context
Traffic on Mon, Sep 21, 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
- Heavy
- Busy window
- Arrival pressure likely builds 4:30 PM to 8 PM.
- Main signal
- Zach Bryan + Staind: Break The Cycle 25th Anniversary Tour + Charli xcx
- Zach Bryan
- Staind: Break The Cycle 25th Anniversary Tour
- Charli xcx
What's affected
HWY 401 (Westbound) at HWY 404 is impacted by construction work. The source lists affected lanes as: 1 Right 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. Which one wins depends on the day — check a live map before you leave.
Same-day events
- Zach Bryan - With Heaven On Tour
Sep 21 · Rogers Centre
- Staind: Break The Cycle 25th Anniversary Tour
Sep 21 · RBC Amphitheatre
- Charli xcx - Music, Fashion, Film Tour
Sep 21 · Scotiabank Arena
- Zach Bryan - With Heaven On Tour
Sep 22 · Rogers Centre
- Toronto Maple Leafs vs. Ottawa Senators
Sep 23 · Scotiabank Arena
- Tove Lo - ESTRUS TOUR
Sep 23 · Coca-Cola Coliseum
Plan ahead
Read next
★ RoadHighway 401 statusSegment-level closures, long-running restrictions, and upcoming work.read →★ DayTraffic on Sep 21Same-day events and other road restrictions around this closure.read →★ ClosuresToronto closures todayBrowse active and upcoming construction records.read →★ WeekendThis weekend's closuresSee this closure beside events, transit work, and other road restrictions.read →★ RouteDriving from Mississauga?Check how this road fits into the full route into Toronto.read →★ RouteDriving from Kitchener?Check how this road fits into the full route into Toronto.read →★ RouteDriving from Brampton?Check how this road fits into the full route into Toronto.read →