ConstructionThu, Oct 1, 2026 – Fri, Oct 9, 2026HWY 401 (Westbound)
Nightly Construction on HWY 401 Westbound Express between WARDEN AVE and HWY 404, Toronto.
Construction · Thu, Oct 1, 2026 – Fri, Oct 9, 2026
★ IMPACT 4/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- Between WARDEN AVE and HWY 404
- Start date
- Thu, Oct 1, 2026 · 10:00 PM
- End date
- Fri, Oct 9, 2026 · 5:00 AM
- Lanes affected
- 2 Alternating Lane(s)
- Severity
- Heavy
- Source
- Ontario 511Event ID 314687
Traffic context
Traffic today
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
- Likely busiest 5:30 PM to 12 AM as event traffic overlaps.
- Main signal
- Toronto Argonauts at BMO Field + Nuit Blanche Toronto + Foster The People: Good Mourning Sunshine Tour
- Toronto Argonauts vs. BC Lions
- Nuit Blanche Toronto
- Foster The People: Good Mourning Sunshine Tour
What's affected
HWY 401 (Westbound) between WARDEN AVE and HWY 404 is impacted by construction work. The source lists affected lanes as: 2 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. Which one wins depends on the day — check a live map before you leave.
Same-day events
- Dan + Shay: The Young Tour
Oct 1 · RBC Amphitheatre
- Phoebe Bridgers: The Lost Tour
Oct 1 · Scotiabank Arena
- Phoebe Bridgers: The Lost Tour
Oct 2 · Scotiabank Arena
- Toronto Argonauts vs. BC Lions
Oct 3 · BMO Field
- Nuit Blanche Toronto
Oct 3 · Citywide
- Foster The People: Good Mourning Sunshine Tour
Oct 3 · RBC Amphitheatre
- Toronto Maple Leafs vs Ottawa Senators
Oct 3 · Scotiabank Arena
- Toronto Marlies vs Hamilton Hammers
Oct 3 · Coca-Cola Coliseum
Plan ahead
- More on Highway 401
- Toronto traffic on Thu, Oct 1, 2026
- Toronto traffic on Fri, Oct 2, 2026
- Toronto traffic on Sat, Oct 3, 2026
- Toronto traffic on Sun, Oct 4, 2026
- Toronto traffic on Mon, Oct 5, 2026
- Toronto traffic on Tue, Oct 6, 2026
- Toronto traffic on Wed, Oct 7, 2026
- Toronto traffic on Thu, Oct 8, 2026
- Toronto traffic on Fri, Oct 9, 2026
Read next
★ RoadHighway 401 statusSegment-level closures, long-running restrictions, and upcoming work.read →★ DayTraffic todaySame-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 →