Nightly Construction on HWY 401 Westbound Express between HWY 404 and YONGE ST, Toronto.
★ Quick facts
- Location
- Between HWY 404 and YONGE ST
- Start date
- Mon, Aug 31, 2026 · 11:59 PM
- End date
- Wed, Sep 2, 2026 · 5:00 AM
- Lanes affected
- ALL LANES CLOSED
- Severity
- HeavyLane restriction
- Source
- Ontario 511Event ID 294577
Traffic context
Traffic on Mon, Aug 31, 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
- Sharpest squeeze likely 11 PM to 1 AM as crowds leave; arrivals build more gradually 8:30 AM to 10:30 AM.
- Main signal
- Canadian National Exhibition (CNE / The Ex) + SQUEEZE + DON TOLIVER: NITROUS
- Canadian National Exhibition (CNE / The Ex)
- SQUEEZE
- DON TOLIVER: NITROUS
What's affected
HWY 401 (Westbound) between HWY 404 and YONGE ST is impacted by a lane restriction. The source lists affected lanes as: ALL LANES CLOSED.
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
- Canadian National Exhibition (CNE / The Ex)
Aug 31 · Exhibition Place
- SQUEEZE - TRIED, TESTED AND TRIXIES w/ Adam Ant and Haircut 100
Aug 31 · RBC Amphitheatre
- DON TOLIVER: NITROUS - OCTANE WORLD TOUR LEG 2
Aug 31 · Scotiabank Arena
- TTC 504|304 Temporary service change due to sewer inspection
Aug 31 · Toronto transit
- Canadian National Exhibition (CNE / The Ex)
Sep 1 · Exhibition Place
- Rob Zombie & Marilyn Manson with The Hu & Orgy
Sep 1 · RBC Amphitheatre
- TTC 504|304 Temporary service change due to sewer inspection
Sep 1 · Toronto transit
- Canadian National Exhibition (CNE / The Ex)
Sep 2 · Exhibition Place