Road closureMon, May 11, 2026 – Fri, May 15, 2026HWY 400 (Northbound)
Nightly Construction on HWY 400 Northbound Off-ramp at MAJOR MACKENZIE DRIVE, Vaughan.
Road closure · Mon, May 11, 2026 – Fri, May 15, 2026
★ IMPACT 3/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- At MAJOR MACKENZIE DRIVE
- Start date
- Mon, May 11, 2026 · 10:00 PM
- End date
- Fri, May 15, 2026 · 11:59 PM
- Lanes affected
- ALL LANES CLOSED
- Severity
- HeavyFull closure
- Source
- Ontario 511Event ID 241581
What's affected
HWY 400 (Northbound) at MAJOR MACKENZIE DRIVE is impacted by a road closure with full closure conditions. Expect impact to ALL LANES CLOSED.
Suggested detour: Highway 27 and Yonge Street are the practical alternates south of King City; both are heavily congested in peak.
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