416 TrafficKnow before you go

Daily Maintenance on HWY 401 Eastbound between HARMONY ROAD, Oshawa and HWY 35/115, Clarington.

Construction · Sat, Apr 25, 2026

Quick facts

Location
At HARMONY ROAD
Start date
Sat, Apr 25, 2026
End date
Sat, Apr 25, 2026
Lanes affected
1 Alternating Lane(s)
Severity
Severe

What's affected

HWY 401 (Eastbound) at HARMONY ROAD is impacted by construction work. Expect impact to 1 Alternating Lane(s).

Suggested detour: Highway 7 to the north and the 407 ETR (toll) are the practical alternates. Avenue Road, Yonge, and Eglinton cannot absorb 401 volume.

Same-day events

Plan ahead