Highway 420 road conditions
Closures, winter road conditions, construction and collisions on Highway 420, in order along the road.
Highway 420: no full closures reported
As of 4:00 a.m. EST. 4 entries; latest update 1 day ago.
Collisions and incidents now 0
Lane closures and construction 2
- Lane closureeastbound
Engineering Investigation at Dorchester Road/Lundy's Lane, Niagara Falls
Since Sun, Nov 8, 9:00 p.m. EST
Nightly Engineering Investigation on HWY 420 Eastbound between DORCHESTER ROAD/LUNDY'S LANE and DORCHESTER ROAD/LUNDY'S LANE, Niagara Falls. 1 Alternating Lane(s).
511 Ontario · ON · updated November 2, 2026
- Lane closurewestbound
Engineering Investigation at Dorchester Road/Lundy's Lane, Niagara Falls
Since Sun, Nov 8, 9:00 p.m. EST
Nightly Engineering Investigation on HWY 420 Westbound between DORCHESTER ROAD/LUNDY'S LANE and DORCHESTER ROAD/LUNDY'S LANE, Niagara Falls. 1 Alternating Lane(s).
511 Ontario · ON · updated November 2, 2026
Planned construction 2
- Lane closureeastbound
Engineering Investigation at Dorchester Road/Lundy's Lane, Niagara Falls
Starts Sun, Nov 15, overnight
Nightly Engineering Investigation on HWY 420 Eastbound between DORCHESTER ROAD/LUNDY'S LANE and DORCHESTER ROAD/LUNDY'S LANE, Niagara Falls. 1 Alternating Lane(s).
511 Ontario · ON · updated 1 day ago
- Lane closurewestbound
Engineering Investigation at Dorchester Road/Lundy's Lane, Niagara Falls
Starts Sun, Nov 15, overnight
Nightly Engineering Investigation on HWY 420 Westbound between DORCHESTER ROAD/LUNDY'S LANE and DORCHESTER ROAD/LUNDY'S LANE, Niagara Falls. 1 Alternating Lane(s).
511 Ontario · ON · updated 1 day ago
Traffic cameras 1
Highway 420 at Stanley Avenue — Looking West
511 Ontario, Ministry of Transportation of Ontario
Highway 420 by email, every morning
Collisions, winter road conditions and closures on Highway 420 at 6:00 a.m. Eastern. Free, and one click to stop.
More options: more highways, provinces, or Mondays only.
What we cover in Ontario
- Construction and lane closuresLive · 511 Ontario, Québec 511 (MTMD), Local news report, City open data (Toronto, Vancouver, Calgary), City of Ottawa
- Collisions and incidentsLive · 511 Ontario, Québec 511 (MTMD), Local news report, City open data (Toronto, Vancouver, Calgary), City of Ottawa
- Winter road conditionsLive · 511 Ontario, Québec 511 (MTMD), Local news report, City open data (Toronto, Vancouver, Calgary), City of Ottawa
Sources 511 Ontario, Ministry of Transportation of Ontario · Ministère des Transports et de la Mobilité durable du Québec (Québec 511), via Données Québec · Reports from Canadian news outlets and RCMP news releases, each credited and linked; facts extracted by Roadscore. Place names from GeoNames (CC BY 4.0); road positions from OpenStreetMap contributors (ODbL). · City of Toronto, City of Vancouver and City of Calgary open data · Contains information licensed under the Open Government Licence – City of Ottawa