Nightly Engineering Investigation on HWY 400 Northbound between SUNNIDALE ROAD and ST VINCENT ST…
Construction · Tue, Apr 28, 2026 – Wed, May 13, 2026
Quick facts
- Location
- Between SUNNIDALE ROAD and ST VINCENT STREET
- Start date
- Tue, Apr 28, 2026 · 11:00 PM
- End date
- Wed, May 13, 2026 · 5:00 AM
- Lanes affected
- 2 Right Lane(s)
- Severity
- Severe
What's affected
HWY 400 (Northbound) between SUNNIDALE ROAD and ST VINCENT STREET is impacted by construction work. Expect impact to 2 Right Lane(s).
Suggested detour: Highway 27 and Yonge Street are the practical alternates south of King City; both are heavily congested in peak.
Same-day events
- Toronto Blue Jays vs Boston Red Sox
Apr 28 · Rogers Centre
- Toronto Blue Jays vs Boston Red Sox
Apr 29 · Rogers Centre
- Toronto Tempo vs. Connecticut Sun
Apr 29 · Coca-Cola Coliseum
- Toronto Raptors vs Cleveland Cavaliers
May 1 · Scotiabank Arena
- Stars On Ice 2026
May 2 · Scotiabank Arena
- YUNGBLUD: IDOLS - THE WORLD TOUR
May 2 · Coca-Cola Coliseum
- AFC Toronto vs. Halifax Tides FC
May 3 · BMO Field
- Toronto Marathon
May 3 · North York to Downtown
- Toronto Blue Jays vs Los Angeles Angels
May 8 · Rogers Centre
- Toronto Tempo vs. Washington Mystics
May 8 · Coca-Cola Coliseum
Plan ahead
- More on Highway 400
- Toronto traffic on Tue, Apr 28, 2026
- Toronto traffic on Wed, Apr 29, 2026
- Toronto traffic on Thu, Apr 30, 2026
- Toronto traffic on Fri, May 1, 2026
- Toronto traffic on Sat, May 2, 2026
- Toronto traffic on Sun, May 3, 2026
- Toronto traffic on Mon, May 4, 2026
- Toronto traffic on Tue, May 5, 2026
- Toronto traffic on Wed, May 6, 2026
- Toronto traffic on Thu, May 7, 2026
- Toronto traffic on Fri, May 8, 2026
- Toronto traffic on Sat, May 9, 2026
- Toronto traffic on Sun, May 10, 2026
- Toronto traffic on Mon, May 11, 2026
- Toronto traffic on Tue, May 12, 2026
- Toronto traffic on Wed, May 13, 2026