TODAY / SEP 18HEAVY
416TRAFFIC
ConstructionWed, Sep 16, 2026 – Mon, Sep 21, 2026HWY 400 (Southbound)

Nightly Maintenance on HWY 400 Southbound between FINCH AVENUE and 401, Toronto.

Construction · Wed, Sep 16, 2026 – Mon, Sep 21, 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
Mon, Sep 21, 2026 · 6:00 AM
Lanes affected
1 Right Lane(s)
Severity
Heavy
Source
Ontario 511Event ID 307306

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
Arrival pressure likely builds 7 PM to 8 PM.
Main signal
Toronto International Film Festival (TIFF) + Toronto Tempo at Coca-Cola Coliseum + TTC Line 1 (Yonge-University)
  • Toronto International Film Festival (TIFF)
  • Toronto Tempo vs. Indiana Fever
  • TTC Line 1 (Yonge-University)

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

Plan ahead

Read next