Highway 400 Traffic in Ontario

• Highway 400 Ontario Accident Reports
• Highway 400 Ontario Weather Conditions

DOT Accident and Construction Reports

• Expect delays up to 15 minutes. Highway 400 between Langstaff and Major Mackenzie Closure

  TYPE: Construction Serious

• Expect delays up to 15 minutes. Highway 400 between Langstaff and Major Mackenzie Closure

  TYPE: Construction Serious

• There is no impact on traffic. Highway 400 - North of 5th Line - approximatively 700 metre

  TYPE: Miscellaneous Serious

Highway 400 ON News Reports

• 2 people dead following early morning crash in Vaughan

  • Ontario
  • Highway 400

  • source: Bing
  • 5 views
  • Dec 07, 2025 2:00pm
  400

  Ontario Provincial Police say two men are dead after a car crash involving a vehicle and a tractor trailer on a highway in Vaughan early Sunday morning. Police say officers were called to a report of ... Read More

• 2 people killed, 1 man in hospital after serious crash on Hwy. 400

  • Ontario
  • Teston
  • Hwy-400

  • source: Bing
  • 8 views
  • Dec 07, 2025 10:43am
  400

  At least one person is dead following a collision on Highway 400 in Vaughan early Sunday morning, authorities say. Read More

• 2 dead after rideshare car, truck crash on Hwy 400 in Vaughan: OPP

  • Ontario
  • Hwy 2

  • source: Bing
  • 6 views
  • Dec 07, 2025 06:13am
  Two people are dead and a third is in hospital after a crash on Highway 400 in Vaughan early Sunday morning, according to Ontario Provincial Police. Read More

• CLOSURE: All northbound lanes of Highway 400 closed in Ontario

  • Ontario
  • Hwy-400

  • source: Bing
  • 10 views
  • Dec 07, 2025 04:48am
  400

  All northbound lanes of Highway 400 at Major Mackenzie Drive are closed after a fatal two-vehicle collision involving a transport truck and a passenger vehicle, Ontario Provincial Police (OPP) say. Read More

• Newmarket woman arrested in connection with stolen vehicle located on Highway 400

  • Ontario
  • Hwy-400

  • source: Bing
  • 13 views
  • Dec 03, 2025 09:02am
  400

  Automatic Licence Plate Reader alerted Georgian Bay OPP of a licence plate on a vehicle reported stolen in the Toronto area ... Read More

• Charges Laid After Stolen Vehicle Found On Hwy. 400 in Georgian Bay Township

  • Ontario
  • Hwy-400

  • source: Bing
  • 20 views
  • Dec 02, 2025 09:46am
  400

  On December 1, 2025, just after  12 noon, a member of the Southern Georgian Bay Detachment of the Ontario Provincial Police (OPP) was patrolling northbound on Highway 400 in Georgian Bay Township. The ... Read More

• Pair of southbound Highway 400 lanes closed near Aurora on Monday morning for vehicle fire: OPP

  • Ontario
  • Hwy-400

  • source: Bing
  • 17 views
  • Dec 01, 2025 06:57am
  400

  Provincial police in Aurora are warning motorists to '?expect traffic delays throughout the morning'? following a vehicle fire along the southbound Highway 400. The two right southbound lanes of Highway ... Read More

• Hwy. 400 northbound lanes at Hwy. 401 reopened after collision; SIU investigating

  • Ontario
  • Hwy-400 S

  • source: Bing
  • 26 views
  • Nov 28, 2025 5:13pm
  400

  The province's police watchdog is investigating a collision involving an Ontario Provincial Police cruiser on Highway 400 in Toronto that resulted in a lengthy closure on Friday. Read More

• Crash closes multiple lanes on NB Hwy. 400 at Hwy. 401: OPP

  • Ontario
  • Hwy-401

  • source: Bing
  • 29 views
  • Nov 28, 2025 06:01am
  401

  All but one northbound lane of Highway 400 is closed at Highway 401 on following a multi-vehicle crash, Ontario Provincial Police say. Read More

• Simcoe highway closures for planned roadwork on Nov. 16

  • Ontario
  • Tottenham Rd

  • source: Bing
  • 30 views
  • Nov 16, 2025 03:17am
  Expect delays along these routes - 56 closures are scheduled for roadwork on provincial highways in Simcoe on Nov. 16, 2025: Highway 11 northbound between Highway 400, Oro Medonte and Severn River ... Read More