Road closureTue, Aug 4, 2026 – Wed, Aug 5, 2026HWY 401 (Eastbound)
Continuous Engineering Investigation on HWY 401 Eastbound On-ramp at PORT UNION ROAD, Toronto.
Road closure · Tue, Aug 4, 2026 – Wed, Aug 5, 2026
★ IMPACT 3/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- At PORT UNION ROAD
- Start date
- Tue, Aug 4, 2026 · 11:00 PM
- End date
- Wed, Aug 5, 2026 · 5:00 AM
- Lanes affected
- ALL LANES CLOSED
- Severity
- HeavyFull ramp closure
- Source
- Ontario 511Event ID 281616
Traffic context
Traffic on Tue, Aug 4, 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
- Arrival pressure likely builds 5:30 PM to 8:30 PM.
- Main signal
- Train & Barenaked Ladies with Matt Nathanson + National Bank Open Toronto + Olivia Dean: The Art Of Loving Live
- Train & Barenaked Ladies with Matt Nathanson
- National Bank Open Toronto
- Olivia Dean: The Art Of Loving Live
What's affected
HWY 401 (Eastbound) at PORT UNION ROAD is impacted by a full ramp closure. 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. A navigation app can compare current conditions and restrictions across these corridors.
Same-day events
- Train & Barenaked Ladies with Matt Nathanson
Aug 4 · RBC Amphitheatre
- National Bank Open Toronto
Aug 4 · Sobeys Stadium
- Olivia Dean: The Art Of Loving Live
Aug 4 · Scotiabank Arena
- 5 Seconds of Summer: EVERYONE'S A STAR! World Tour
Aug 5 · RBC Amphitheatre
- National Bank Open Toronto
Aug 5 · Sobeys Stadium
- Olivia Dean: The Art Of Loving Live
Aug 5 · Scotiabank Arena
Plan ahead
Read next
★ RoadHighway 401 statusSegment-level closures, long-running restrictions, and upcoming work.read →★ DayTraffic on Aug 4Same-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 →★ RouteDriving from Mississauga?Check how this road fits into the full route into Toronto.read →★ RouteDriving from Kitchener?Check how this road fits into the full route into Toronto.read →★ RouteDriving from Brampton?Check how this road fits into the full route into Toronto.read →