Highway 400 road conditions
Toronto to Barrie and on to Parry Sound and Sudbury: the road to cottage country. Closures, winter road conditions, construction and collisions on Highway 400, in order along the road.
Highway 400: no full closures reported
As of 2:21 p.m. EDT. 58 entries; latest update 2 days ago.
Collisions and incidents now 0
Lane closures and construction 2
- Lane closurenorthbound
Construction at Innisfil Beach Rd - Simcoe Road 21, Innisfil
Since Sun, Oct 4, 8:00 p.m. EDT
Nightly Construction on HWY 400 Northbound between INNISFIL BEACH RD - SIMCOE ROAD 21 and INNISFIL BEACH RD - SIMCOE ROAD 21, Innisfil. 2 Alternating Lane(s).
511 Ontario · ON · updated September 28, 2026
- Lane closuresouthbound
Construction at Innisfil Beach Rd - Simcoe Road 21, Innisfil
Since Sun, Oct 4, 7:00 p.m. EDT
Nightly Construction on HWY 400 Southbound between INNISFIL BEACH RD - SIMCOE ROAD 21 and INNISFIL BEACH RD - SIMCOE ROAD 21, Innisfil. 2 Alternating Lane(s).
511 Ontario · ON · updated September 28, 2026
Planned construction 56
- Lane closurenorthbound
Construction between Hwy 12 N Jct and Port Severn Road, Tay
Starts Tue, Oct 13, 12:00 a.m. EDT
Daily Construction on HWY 400 Northbound between HWY 12 N JCT and PORT SEVERN ROAD, Tay. 1 Alternating Lane(s).
511 Ontario · ON · updated September 21, 2026
- Lane closuresouthbound
Maintenance between Teston Road and Major Mackenzie Drive, Vaughan
Starts Tue, Oct 13, overnight
Nightly Maintenance on HWY 400 Southbound between TESTON ROAD and MAJOR MACKENZIE DRIVE, Vaughan. 1 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closurenorthbound
Construction between Hwy 88 and 13TH Concession, Bradford
Starts Tue, Oct 13, 12:00 a.m. EDT
Daily Construction on HWY 400 Northbound between HWY 88 and 13TH CONCESSION, Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated 4 days ago
- Lane closuresouthbound
Construction between 13TH Concession and Hwy 88, Bradford
Starts Tue, Oct 13, 9:00 a.m. EDT
Daily Construction on HWY 400 Southbound between 13TH CONCESSION and HWY 88, Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated 4 days ago
- Lane closuresouthbound
Construction between 13TH Concession and Hwy 88, Bradford
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound between 13TH CONCESSION and HWY 88, Bradford. 2 Alternating Lane(s).
511 Ontario · ON · updated September 30, 2026
- Lane closurenorthbound
Moving maintenance between Hwy 11 Jct, Springwater and Severn River Bridge, Tay
Starts Tue, Oct 13, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between HWY 11 JCT, Springwater and SEVERN RIVER BRIDGE, Tay. 1 Alternating Lane(s).
511 Ontario · ON · updated September 15, 2026
- Lane closuresouthbound
Moving maintenance between Severn River Bridge, Tay and Hwy 11 Jct, Springwater
Starts Tue, Oct 13, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between SEVERN RIVER BRIDGE, Tay and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated September 15, 2026
- Lane closurenorthbound
Construction between Hwy 88 and 13TH Concession, Bradford
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound between HWY 88 and 13TH CONCESSION, Bradford. 2 Alternating Lane(s).
511 Ontario · ON · updated September 30, 2026
- Lane closurenorthbound
Moving maintenance between Mapleview Drive, Barrie and Hwy 11 Jct, Springwater
Starts Tue, Oct 13, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between MAPLEVIEW DRIVE, Barrie and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated September 15, 2026
- Lane closuresouthbound
Moving maintenance between Hwy 11 Jct, Springwater and Mapleview Drive, Barrie
Starts Tue, Oct 13, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between HWY 11 JCT, Springwater and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated September 15, 2026
- Lane closuresouthbound
Moving maintenance between Mapleview Drive, Barrie and Canal Rd
Starts Tue, Oct 13, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between MAPLEVIEW DRIVE, Barrie and CANAL RD., Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated September 15, 2026
- Lane closurenorthbound
Moving maintenance between Forbes Road/Simcoe Road 11 and Hwy 93/Penetanguishene Rd/Simcoe Road 9, Springwater
Starts Tue, Oct 13, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between FORBES ROAD/SIMCOE ROAD 11 and HWY 93/PENETANGUISHENE RD/SIMCOE ROAD 9, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated September 25, 2026
- Lane closuresouthbound
Construction, collector between Hwy 26/ Bayfield Street and Dunlop Street / Simcoe Road 90, Barrie
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound Collector between HWY 26/ BAYFIELD STREET and DUNLOP STREET / SIMCOE ROAD 90, Barrie. 2 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closurenorthbound
Construction, collector between Essa Rd / Simcoe Rd 27 and Dunlop Street / Simcoe Road 90, Barrie
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound Collector between ESSA RD / SIMCOE RD 27 and DUNLOP STREET / SIMCOE ROAD 90, Barrie. 2 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Ramp closurenorthbound
Construction, on-ramp at Dunlop Street / Simcoe Road 90, Barrie
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound On-ramp at DUNLOP STREET / SIMCOE ROAD 90, Barrie. ALL LANES CLOSED.
511 Ontario · ON · updated October 1, 2026
- Ramp closuresouthbound
Construction, collector at Dunlop Street / Simcoe Road 90, Barrie
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound Collector Off-ramp at DUNLOP STREET / SIMCOE ROAD 90, Barrie. ALL LANES CLOSED.
511 Ontario · ON · updated October 1, 2026
- Ramp closurenorthbound
Construction, collector at Dunlop Street / Simcoe Road 90, Barrie
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound Collector Off-ramp at DUNLOP STREET / SIMCOE ROAD 90, Barrie. ALL LANES CLOSED.
511 Ontario · ON · updated October 1, 2026
- Ramp closurenorthbound
Construction, off-ramp at Dunlop Street / Simcoe Road 90, Barrie
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound Off-ramp at DUNLOP STREET / SIMCOE ROAD 90, Barrie. ALL LANES CLOSED.
511 Ontario · ON · updated October 1, 2026
- Ramp closuresouthbound
Construction, on-ramp at Dunlop Street / Simcoe Road 90, Barrie
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound On-ramp at DUNLOP STREET / SIMCOE ROAD 90, Barrie. ALL LANES CLOSED.
511 Ontario · ON · updated October 1, 2026
- Lane closuresouthbound
Construction between Major Mackenzie Drive and Bass Pro Mills Drive, Vaughan
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound between MAJOR MACKENZIE DRIVE and BASS PRO MILLS DRIVE, Vaughan. 3 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closurenorthbound
Construction, express between Langstaff Road and Bass Pro Mills Drive, Vaughan
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound Express between LANGSTAFF ROAD and BASS PRO MILLS DRIVE, Vaughan. 4 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closuresouthbound
Construction, express between Bass Pro Mills Drive and Highway 7, Vaughan
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound Express between BASS PRO MILLS DRIVE and HIGHWAY 7, Vaughan. 4 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closurenorthbound
Moving maintenance between Canal Rd
Starts Tue, Oct 13, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between CANAL RD., Bradford and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated September 15, 2026
- Lane closurenorthbound
Construction, express between Highway 7 and Langstaff Road, Vaughan
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound Express between HIGHWAY 7 and LANGSTAFF ROAD, Vaughan. 3 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closuresouthbound
Construction, collector between Bass Pro Mills Drive and Highway 7, Vaughan
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound Collector between BASS PRO MILLS DRIVE and HIGHWAY 7, Vaughan. 1 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closurenorthbound
Construction, express between Bass Pro Mills Drive and Major Mackenzie Drive, Vaughan
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound Express between BASS PRO MILLS DRIVE and MAJOR MACKENZIE DRIVE, Vaughan. 3 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closurenorthbound
Construction, collector between Highway 7 and Langstaff Road, Vaughan
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound Collector between HIGHWAY 7 and LANGSTAFF ROAD, Vaughan. 1 Alternating Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closurenorthbound
Construction between 5TH Line and 9TH Concession, Bradford
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Northbound between 5TH LINE and 9TH CONCESSION, Bradford. 2 Left Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closuresouthbound
Construction between 9TH Concession and 5TH Line, Bradford
Starts Tue, Oct 13, overnight
Nightly Construction on HWY 400 Southbound between 9TH CONCESSION and 5TH LINE, Bradford. 2 Left Lane(s).
511 Ontario · ON · updated 5 days ago
- Lane closuresouthbound
Maintenance between Lloydtown-Aurora Rd, Kettleby and Teston Road, Vaughan
Starts Tue, Oct 13, overnight
Nightly Maintenance on HWY 400 Southbound between LLOYDTOWN-AURORA RD, Kettleby and TESTON ROAD, Vaughan. 1 Alternating Lane(s).
511 Ontario · ON · updated 2 days ago
- Lane closuresouthbound
Maintenance, off-ramp at Finch Avenue, Toronto
Starts Tue, Oct 13, overnight
Nightly Maintenance on HWY 400 Southbound Off-ramp at FINCH AVENUE, Toronto. 1 Alternating Lane(s).
511 Ontario · ON · updated 2 days ago
- Lane closuresouthbound
Engineering Investigation, off-ramp at Hwy 89/Simcoe Road 89, Innisfil
Starts Tue, Oct 13, overnight
Nightly Engineering Investigation on HWY 400 Southbound Off-ramp at HWY 89/SIMCOE ROAD 89, Innisfil. 1 Right Lane(s).
511 Ontario · ON · updated 5 days ago
- Partial closuresouthbound
Construction between 9TH Concession and 5TH Line, Bradford
Starts Sun, Oct 18, overnight
Nightly Construction on HWY 400 Southbound between 9TH CONCESSION and 5TH LINE, Bradford. OPP Assisted Full Closure for 15 minutes.
511 Ontario · ON · updated 5 days ago
- Partial closurenorthbound
Construction between 5TH Line and 9TH Concession, Bradford
Starts Sun, Oct 18, overnight
Nightly Construction on HWY 400 Northbound between 5TH LINE and 9TH CONCESSION, Bradford. OPP Assisted Full Closure for 15 minutes.
511 Ontario · ON · updated 5 days ago
- Lane closuresouthbound
Moving maintenance between Severn River Bridge, Tay and Hwy 11 Jct, Springwater
Starts Sun, Oct 18, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between SEVERN RIVER BRIDGE, Tay and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated September 16, 2026
- Lane closurenorthbound
Moving maintenance between Hwy 11 Jct, Springwater and Severn River Bridge, Tay
Starts Sun, Oct 18, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between HWY 11 JCT, Springwater and SEVERN RIVER BRIDGE, Tay. 1 Alternating Lane(s).
511 Ontario · ON · updated September 16, 2026
- Lane closurenorthbound
Moving maintenance between Mapleview Drive, Barrie and Hwy 11 Jct, Springwater
Starts Sun, Oct 18, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between MAPLEVIEW DRIVE, Barrie and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated September 16, 2026
- Lane closuresouthbound
Moving maintenance between Mapleview Drive, Barrie and Canal Rd
Starts Sun, Oct 18, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between MAPLEVIEW DRIVE, Barrie and CANAL RD., Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated September 16, 2026
- Lane closuresouthbound
Moving maintenance between Hwy 11 Jct, Springwater and Mapleview Drive, Barrie
Starts Sun, Oct 18, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between HWY 11 JCT, Springwater and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated September 16, 2026
- Lane closurenorthbound
Moving maintenance between Canal Rd
Starts Sun, Oct 18, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between CANAL RD., Bradford and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated September 16, 2026
- Lane closurenorthbound
Construction between Hwy 12 N Jct and Port Severn Road, Tay
Starts Mon, Oct 19, 12:00 a.m. EDT
Daily Construction on HWY 400 Northbound between HWY 12 N JCT and PORT SEVERN ROAD, Tay. 1 Alternating Lane(s).
511 Ontario · ON · updated 4 days ago
- Lane closurenorthbound
Construction between Hwy 88 and 13TH Concession, Bradford
Starts Mon, Oct 19, 12:00 a.m. EDT
Daily Construction on HWY 400 Northbound between HWY 88 and 13TH CONCESSION, Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated 4 days ago
- Lane closuresouthbound
Construction between 13TH Concession and Hwy 88, Bradford
Starts Mon, Oct 19, 9:00 a.m. EDT
Daily Construction on HWY 400 Southbound between 13TH CONCESSION and HWY 88, Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated 4 days ago
- Lane closuresouthbound
Construction, collector at Langstaff Road, Vaughan
Starts Mon, Oct 19, 11:00 p.m. EDT
Continuous Construction on HWY 400 Southbound Collector between LANGSTAFF ROAD and LANGSTAFF ROAD, Vaughan. ALL LANES CLOSED.
511 Ontario · ON · updated 5 days ago
- Lane closurenorthbound
Moving maintenance between Hwy 11 Jct, Springwater and Severn River Bridge, Tay
Starts Sun, Oct 25, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between HWY 11 JCT, Springwater and SEVERN RIVER BRIDGE, Tay. 1 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closuresouthbound
Moving maintenance between Severn River Bridge, Tay and Hwy 11 Jct, Springwater
Starts Sun, Oct 25, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between SEVERN RIVER BRIDGE, Tay and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closurenorthbound
Moving maintenance between Mapleview Drive, Barrie and Hwy 11 Jct, Springwater
Starts Sun, Oct 25, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between MAPLEVIEW DRIVE, Barrie and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closuresouthbound
Moving maintenance between Mapleview Drive, Barrie and Canal Rd
Starts Sun, Oct 25, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between MAPLEVIEW DRIVE, Barrie and CANAL RD., Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closuresouthbound
Moving maintenance between Hwy 11 Jct, Springwater and Mapleview Drive, Barrie
Starts Sun, Oct 25, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between HWY 11 JCT, Springwater and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closurenorthbound
Moving maintenance between Canal Rd
Starts Sun, Oct 25, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between CANAL RD., Bradford and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated October 1, 2026
- Lane closurenorthbound
Moving maintenance between Hwy 11 Jct, Springwater and Severn River Bridge, Tay
Starts Sun, Nov 1, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between HWY 11 JCT, Springwater and SEVERN RIVER BRIDGE, Tay. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closuresouthbound
Moving maintenance between Severn River Bridge, Tay and Hwy 11 Jct, Springwater
Starts Sun, Nov 1, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between SEVERN RIVER BRIDGE, Tay and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closuresouthbound
Moving maintenance between Hwy 11 Jct, Springwater and Mapleview Drive, Barrie
Starts Sun, Nov 1, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between HWY 11 JCT, Springwater and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closuresouthbound
Moving maintenance between Mapleview Drive, Barrie and Canal Rd
Starts Sun, Nov 1, overnight
Nightly Moving Maintenance Closure on HWY 400 Southbound between MAPLEVIEW DRIVE, Barrie and CANAL RD., Bradford. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closurenorthbound
Moving maintenance between Mapleview Drive, Barrie and Hwy 11 Jct, Springwater
Starts Sun, Nov 1, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between MAPLEVIEW DRIVE, Barrie and HWY 11 JCT, Springwater. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
- Lane closurenorthbound
Moving maintenance between Canal Rd
Starts Sun, Nov 1, overnight
Nightly Moving Maintenance Closure on HWY 400 Northbound between CANAL RD., Bradford and MAPLEVIEW DRIVE, Barrie. 1 Alternating Lane(s).
511 Ontario · ON · updated 3 days ago
Traffic cameras 60
All 60 cameras →Highway 400 near Highway 7 — Looking South
511 Ontario, Ministry of Transportation of Ontario
Highway 400 near Highway 7 — Looking Down
511 Ontario, Ministry of Transportation of Ontario
Highway 400 near Highway 7 — Looking North
511 Ontario, Ministry of Transportation of Ontario
Highway 400 at Highway 9 (2) — Looking South
511 Ontario, Ministry of Transportation of Ontario
Highway 400 by email, every morning
Collisions, winter road conditions and closures on Highway 400 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), 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)