Highway 403 road conditions
Woodstock to Mississauga through Brantford and Hamilton. Closures, winter road conditions, construction and collisions on Highway 403, in order along the road.
Highway 403: 1 incident now
As of 2:21 p.m. EDT. 13 entries; latest update 28 min ago.
Collisions and incidents now 1
Planned construction 12
- Ramp closureeastbound
Construction, off-ramp at Garden Ave, Brantford
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 403 HAMILTON Eastbound Off-ramp at Garden Ave, Brantford. ALL LANES CLOSED.
511 Ontario · ON · updated September 28, 2026
- Lane closureeastbound
Construction between Erin Mills Pkwy and Hwy 10 / Hurontario Street, Mississauga
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 403 MISSISSAUGA Eastbound between ERIN MILLS PKWY and HWY 10 / HURONTARIO STREET, Mississauga. 1 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closureeastbound
Construction between Winston Churchill Blvd and Central Pkwy, Mississauga
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 403 MISSISSAUGA Eastbound between WINSTON CHURCHILL BLVD and CENTRAL PKWY, Mississauga. 1 Right Lane(s).
511 Ontario · ON · updated 6 days ago
- Lane closureeastbound
Construction between Winston Churchill Blvd and Central Pkwy, Mississauga
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 403 MISSISSAUGA Eastbound between WINSTON CHURCHILL BLVD and CENTRAL PKWY, Mississauga. 1 Left(with HOV) Lane(s).
511 Ontario · ON · updated 6 days ago
- Ramp closurewestbound
Maintenance, off-ramp at Upper Middle Road, Oakville
Starts Tue, Oct 13, overnight
Nightly Maintenance on HWY 403 MISSISSAUGA Westbound Off-ramp at UPPER MIDDLE ROAD, Oakville. ALL LANES CLOSED.
511 Ontario · ON · updated 4 days ago
- Lane closurewestbound
Maintenance between Hwy 5 / Dundas Street, Mississauga and Upper Middle Road, Oakville
Starts Tue, Oct 13, overnight
Nightly Maintenance on HWY 403 MISSISSAUGA Westbound between HWY 5 / DUNDAS STREET, Mississauga and UPPER MIDDLE ROAD, Oakville. 1 Right Lane(s).
511 Ontario · ON · updated 4 days ago
- Lane closurewestbound
Construction at Brant Street, Burlington
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 403 HAMILTON Westbound between BRANT STREET and BRANT STREET, Burlington. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
- Ramp closurewestbound
Maintenance, on-ramp at Hwy 10 / Hurontario Street, Mississauga
Starts Tue, Oct 13, overnight
Nightly Maintenance on HWY 403 MISSISSAUGA Westbound On-ramp at HWY 10 / HURONTARIO STREET, Mississauga. ALL LANES CLOSED.
511 Ontario · ON · updated 1 day ago
- Lane closurewestbound
Engineering Investigation between Aberdeen Ave and Lincoln M
Starts Wed, Oct 14, overnight
Nightly Engineering Investigation on HWY 403 HAMILTON Westbound between ABERDEEN AVE and LINCOLN M. ALEXANDER PARKWAY, Hamilton. 1 Right Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closureeastbound
Engineering Investigation between Lincoln M
Starts Wed, Oct 14, overnight
Nightly Engineering Investigation on HWY 403 HAMILTON Eastbound between LINCOLN M. ALEXANDER PARKWAY and ABERDEEN AVE, Hamilton. 1 Right Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closureeastbound
Engineering Investigation at Main Street West, Hamilton
Starts Thu, Oct 15, overnight
Nightly Engineering Investigation on HWY 403 HAMILTON Eastbound between MAIN STREET WEST and MAIN STREET WEST, Hamilton. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closurewestbound
Engineering Investigation at Main Street West, Hamilton
Starts Thu, Oct 15, overnight
Nightly Engineering Investigation on HWY 403 HAMILTON Westbound between MAIN STREET WEST and MAIN STREET WEST, Hamilton. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
Traffic cameras 43
All 43 cameras →Highway 403 West of King Road
511 Ontario, Ministry of Transportation of Ontario
Highway 403 East of King Road
511 Ontario, Ministry of Transportation of Ontario
Highway 403 at Dundas Street
511 Ontario, Ministry of Transportation of Ontario
Highway 403 at Burnhamthorpe Road
511 Ontario, Ministry of Transportation of Ontario
Highway 403 by email, every morning
Collisions, winter road conditions and closures on Highway 403 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)