Road closureMon, Aug 24, 2026 – Fri, Aug 28, 2026HWY 400 (Southbound)
Nightly Engineering Investigation on HWY 400 Southbound Express Off-ramp at 401, Toronto.
Road closure · Mon, Aug 24, 2026 – Fri, Aug 28, 2026
★ IMPACT 3/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- At 401
- Start date
- Mon, Aug 24, 2026 · 11:59 PM
- End date
- Fri, Aug 28, 2026 · 5:00 AM
- Lanes affected
- ALL LANES CLOSED
- Severity
- HeavyFull ramp closure
- Source
- Ontario 511Event ID 290419
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 7 AM to 8 PM as event traffic overlaps with afternoon rush hour.
- Main signal
- Jays at Rogers Centre + Canadian National Exhibition (CNE / The Ex) + The Fray
- Jays vs Royals
- Canadian National Exhibition (CNE / The Ex)
- The Fray
What's affected
HWY 400 (Southbound) at 401 is impacted by a full ramp closure. The source lists affected lanes as: ALL LANES CLOSED.
Corridors to compare: Highway 27 and Yonge Street run north–south south of King City; both are surface corridors with signals and local access. Which one wins depends on the day — check a live map before you leave.
Same-day events
- Canadian National Exhibition (CNE / The Ex)
Aug 24 · Exhibition Place
- Kacey Musgraves - Middle of Nowhere Tour
Aug 24 · Scotiabank Arena
- Toronto Blue Jays vs Kansas City Royals
Aug 25 · Rogers Centre
- Canadian National Exhibition (CNE / The Ex)
Aug 25 · Exhibition Place
- Empire of the Sun - Ask That God: Afterlife North American Tour
Aug 25 · RBC Amphitheatre
- Toronto Blue Jays vs Kansas City Royals
Aug 26 · Rogers Centre
- Canadian National Exhibition (CNE / The Ex)
Aug 26 · Exhibition Place
- The Fray - Summer of Light Tour with Dashboard Confessional
Aug 26 · RBC Amphitheatre
- Toronto Blue Jays vs Kansas City Royals
Aug 27 · Rogers Centre
- Canadian National Exhibition (CNE / The Ex)
Aug 27 · Exhibition Place
Plan ahead
Read next
★ RoadHighway 400 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 →