ConstructionMon, May 4, 2026 – Thu, May 7, 2026HWY 401 (Westbound)
Daily Maintenance on HWY 401 Westbound between HWY 16 (IC 721B), Johnstown and SHERWOOD SPRINGS…
Construction · Mon, May 4, 2026 – Thu, May 7, 2026
★ IMPACT 4/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- At HWY 16 (IC 721B)
- Start date
- Mon, May 4, 2026 · 7:00 AM
- End date
- Thu, May 7, 2026 · 7:00 PM
- Lanes affected
- 1 Right Lane(s)
- Severity
- Heavy
- Source
- Ontario 511Event ID 239656
What's affected
HWY 401 (Westbound) at HWY 16 (IC 721B) is impacted by construction work. Expect impact to 1 Right Lane(s).
Suggested detour: Highway 7 to the north and the 407 ETR (toll) are the practical alternates. Avenue Road, Yonge, and Eglinton cannot absorb 401 volume.
Same-day events
No major events scheduled in this window.