ConstructionMon, May 4, 2026 – Thu, May 7, 2026HWY 403 MISSISSAUGA (Westbound)
Nightly Construction on HWY 403 MISSISSAUGA Westbound between ERIN MILLS PKWY and WINSTON CHURCH…
Construction · Mon, May 4, 2026 – Thu, May 7, 2026
★ IMPACT 3/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- Between ERIN MILLS PKWY and WINSTON CHURCHILL BLVD
- Start date
- Mon, May 4, 2026 · 9:00 PM
- End date
- Thu, May 7, 2026 · 6:00 AM
- Lanes affected
- 2 Alternating Lane(s)
- Severity
- Heavy
- Source
- Ontario 511Event ID 239255
What's affected
HWY 403 MISSISSAUGA (Westbound) between ERIN MILLS PKWY and WINSTON CHURCHILL BLVD is impacted by construction work. Expect impact to 2 Alternating Lane(s).
Suggested detour: The QEW handles overflow east of Hamilton; Dundas Street is a slow surface alternate.
Same-day events
No major events scheduled in this window.