ConstructionWed, Sep 16, 2026 – Fri, Sep 25, 2026HWY 400 (Southbound)
Nightly Maintenance on HWY 400 Southbound between FINCH AVENUE and 401, Toronto.
Construction · Wed, Sep 16, 2026 – Fri, Sep 25, 2026
★ IMPACT 4/5 · ★ SOURCE-BACKED CLOSURE RECORD
★ Quick facts
- Location
- Between FINCH AVENUE and 401
- Start date
- Wed, Sep 16, 2026 · 8:00 PM
- End date
- Fri, Sep 25, 2026 · 6:00 AM
- Lanes affected
- 1 Right Lane(s)
- Severity
- Heavy
- Source
- Ontario 511Event ID 308929
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
- Heavy
- Busy window
- Likely busiest 7 AM to 4 PM as traffic factors overlap.
- Main signal
- Toronto Argonauts at BMO Field + Toronto Maple Leafs at Scotiabank Arena + Toronto International Film Festival (TIFF)
- Toronto Argonauts vs. Edmonton Elks
- Toronto Maple Leafs vs. Montreal Canadiens
- Toronto International Film Festival (TIFF)
What's affected
HWY 400 (Southbound) between FINCH AVENUE and 401 is impacted by construction work. The source lists affected lanes as: 1 Right Lane(s).
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
- Toronto Blue Jays vs Detroit Tigers
Sep 16 · Rogers Centre
- Bryson Tiller Presents: The Neo Trapsoul Tour
Sep 16 · RBC Amphitheatre
- Toronto International Film Festival (TIFF)
Sep 16 · TIFF Bell Lightbox / Various
- TTC 41|341 Temporary route change due to Metrolinx bridge construction
Sep 16 · Toronto transit
- TTC 512|312|340 Temporary route change due to Metrolinx bridge construction
Sep 16 · Toronto transit
- Of Monsters and Men - The Mouse Parade Tour
Sep 17 · RBC Amphitheatre
- Toronto International Film Festival (TIFF)
Sep 17 · TIFF Bell Lightbox / Various
- Toronto International Film Festival (TIFF)
Sep 18 · TIFF Bell Lightbox / Various
Plan ahead
- More on Highway 400
- Toronto traffic on Wed, Sep 16, 2026
- Toronto traffic on Thu, Sep 17, 2026
- Toronto traffic on Fri, Sep 18, 2026
- Toronto traffic on Sat, Sep 19, 2026
- Toronto traffic on Sun, Sep 20, 2026
- Toronto traffic on Mon, Sep 21, 2026
- Toronto traffic on Tue, Sep 22, 2026
- Toronto traffic on Wed, Sep 23, 2026
- Toronto traffic on Thu, Sep 24, 2026
- Toronto traffic on Fri, Sep 25, 2026
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 →