Highway 21 road conditions
Closures, winter road conditions, construction and collisions on Highway 21, in order along the road.
Highway 21: no full closures reported
As of 4:39 p.m. EDT. 3 entries; latest update June 17, 2026.
Collisions and incidents now 0
Lane closures and construction 3
- Lane closurenorthbound
Construction between Laurier Line (West Side) [ near Amberley ] and Maypark Road [ near Amberley ], Amberley
Since Wed, May 20, 12:00 a.m. EDT
Daily Construction on HWY 21 Northbound between Laurier Line (West Side) [ near Amberley ] and Maypark Road [ near Amberley ], Amberley. 1 Left Lane(s).
511 Ontario · ON · updated May 15, 2026
- Lane closurenorthbound
Construction between Laurier Line (East Side) [ near Amberley ] and Maypark Road [ near Amberley ], Amberley
Since Mon, May 25, 12:00 a.m. EDT
Daily Construction on HWY 21 Northbound between Laurier Line (East Side) [ near Amberley ] and Maypark Road [ near Amberley ], Amberley. 1 Left Lane(s).
511 Ontario · ON · updated May 22, 2026
- Lane closurenorthbound
Construction between Sideroad 5, Allenford and County Road 10 North / Grey Bruce Line, Jackson
Since Thu, Jun 18, 7:30 a.m. EDT
Daily Construction on HWY 21 Northbound between Sideroad 5, Allenford and County Road 10 North / Grey Bruce Line, Jackson. 1 Left Lane(s).
511 Ontario · ON · updated June 17, 2026
Traffic cameras 33
All 33 cameras →Highway 21 near Gravelle Street — Looking South
511 Ontario, Ministry of Transportation of Ontario
Highway 21 near Gravelle Street — Looking Down
511 Ontario, Ministry of Transportation of Ontario
Highway 21 near Gravelle Street — Looking North
511 Ontario, Ministry of Transportation of Ontario
Highway 21 at County Road 25 — Looking South
511 Ontario, Ministry of Transportation of Ontario
Highway 21 by email, every morning
Collisions, winter road conditions and closures on Highway 21 at 6:00 a.m. Eastern. Free, and one click to stop.
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What we cover in Ontario
- Construction and lane closuresLive · 511 Ontario, Québec 511 (MTMD), City open data (Toronto, Vancouver, Calgary)
- Collisions and incidentsLive · 511 Ontario, Québec 511 (MTMD), City open data (Toronto, Vancouver, Calgary)
- Winter road conditionsLive · 511 Ontario, Québec 511 (MTMD), City open data (Toronto, Vancouver, Calgary)