ConstructionTue, Oct 20, 2026 – Fri, Oct 23, 2026HWY 401 (Westbound)

Nightly Construction on HWY 401 Westbound Express between LESLIE STREET and BAYVIEW AVE, Toronto.

Construction · Tue, Oct 20, 2026 – Fri, Oct 23, 2026

★ IMPACT 4/5 · ★ SOURCE-BACKED CLOSURE RECORD

Highway 401 status Traffic on Oct 20 Closures today This weekend

★ Quick facts

Road: HWY 401 (Westbound)
Location: Between LESLIE STREET and BAYVIEW AVE
Start date: Tue, Oct 20, 2026 · 8:00 PM
End date: Fri, Oct 23, 2026 · 5:00 AM
Lanes affected: 3 Alternating Lane(s)
Severity: Heavy
Source: Ontario 511Event ID 320093

Traffic context

Traffic on Tue, Oct 20, 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.

Open daily brief

Day status: Plan ahead
Busy window: 11 PM to 6:30 AM
Main signal: TTC Line 1 (Yonge-University) + TTC Line 2

TTC Line 1 (Yonge-University)
TTC Line 2

What's affected

HWY 401 (Westbound) between LESLIE STREET and BAYVIEW AVE is impacted by construction work. The source lists affected lanes as: 3 Alternating Lane(s).

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. Which one wins depends on the day — check a live map before you leave.

Same-day events

TTC Line 1 (Yonge-University) - York Mills to Eglinton stations - Nightly early closures starting at 11 p.m. - Monday, October 19 to Thursday, October 22, 2026
Oct 20 · Toronto transit
TTC Line 2 - Kipling to Jane stations - Nightly early closures starting at 11:59 p.m. - Monday, October 19 to Friday, October 23, 2026
Oct 20 · Toronto transit
Toronto Raptors vs Chicago Bulls
Oct 21 · Scotiabank Arena
Toronto Marlies vs Hamilton Hammers
Oct 21 · Coca-Cola Coliseum
TTC Line 1 (Yonge-University) - York Mills to Eglinton stations - Nightly early closures starting at 11 p.m. - Monday, October 19 to Thursday, October 22, 2026
Oct 21 · Toronto transit
TTC Line 2 - Kipling to Jane stations - Nightly early closures starting at 11:59 p.m. - Monday, October 19 to Friday, October 23, 2026
Oct 21 · Toronto transit
Toronto Maple Leafs vs New York Rangers
Oct 22 · Scotiabank Arena
TTC Line 1 (Yonge-University) - York Mills to Eglinton stations - Nightly early closures starting at 11 p.m. - Monday, October 19 to Thursday, October 22, 2026
Oct 22 · Toronto transit
TTC Line 2 - Kipling to Jane stations - Nightly early closures starting at 11:59 p.m. - Monday, October 19 to Friday, October 23, 2026
Oct 22 · Toronto transit
Toronto Argonauts vs. Montreal Alouettes
Oct 23 · BMO Field

Plan ahead

★ RoadHighway 401 statusSegment-level closures, long-running restrictions, and upcoming work.read →★ DayTraffic on Oct 20Same-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 →