Nightly Engineering Investigation on HWY 401 Westbound Collector Off-ramp at HWY 427, Toronto.

What's affected

HWY 401 (Westbound) at HWY 427 is impacted by construction work. The source lists affected lanes as: 1 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

• Toronto FC v D.C. United

  Oct 28 · BMO Field

• Toronto Raptors vs Orlando Magic

  Oct 28 · Scotiabank Arena

• TTC Line 1 (Yonge-University) - Lawrence West to St George stations - Nightly early closures starting at 11:59 p.m. - Monday, October 26 to Thursday, October 29

  Oct 28 · Toronto transit

• TTC Line 1 (Yonge-University) - Lawrence West to St George stations - Nightly early closures starting at 11:59 p.m. - Monday, October 26 to Thursday, October 29

  Oct 29 · Toronto transit

• Toronto Raptors vs Orlando Magic

  Oct 30 · Scotiabank Arena

• Toronto Marlies vs Hershey Bears

  Oct 30 · Coca-Cola Coliseum

• TTC Line 2 - St George to Broadview stations - Single-night early closure starting at 10 p.m. - Friday, October 30

  Oct 30 · Toronto transit

• 2026 Eastern Semi Final - Toronto Argonauts v. TBD

  Oct 31 · BMO Field

• TTC Line 2 - St George to Broadview stations - Single-night early closure starting at 10 p.m. - Friday, October 30

  Oct 31 · Toronto transit

Plan ahead

• More on Highway 401
• Toronto traffic on Wed, Oct 28, 2026
• Toronto traffic on Thu, Oct 29, 2026
• Toronto traffic on Fri, Oct 30, 2026
• Toronto traffic on Sat, Oct 31, 2026