TODAY / JUL 31SEVERE
416TRAFFIC
ConstructionMon, Aug 3, 2026 – Sat, Aug 8, 2026HWY 409 (Westbound)

Nightly Maintenance on HWY 409 Westbound between 401 and HWY 427, Toronto.

Construction · Mon, Aug 3, 2026 – Sat, Aug 8, 2026
★ IMPACT 2/5 · ★ SOURCE-BACKED CLOSURE RECORD

Quick facts

Location
Between 401 and HWY 427
Start date
Mon, Aug 3, 2026 · 7:00 PM
End date
Sat, Aug 8, 2026 · 5:00 AM
Lanes affected
1 Alternating Lane(s)
Severity
Plan ahead
Source
Ontario 511Event ID 280026

Traffic context

Traffic on Mon, Aug 3, 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 7 PM to 8 PM.
Main signal
National Bank Open Toronto + Daniel Caesar
  • National Bank Open Toronto
  • Daniel Caesar

What's affected

HWY 409 (Westbound) between 401 and HWY 427 is impacted by construction work. The source lists affected lanes as: 1 Alternating Lane(s).

Same-day events

Plan ahead

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