404 Traffic in Ontario

• 404 Toronto Traffic
• 404 Richmond Hill Traffic
• 404 Aurora Traffic
• 404 Markham Traffic
• 404 Whitchurch-Stouffville Traffic
• 404 East Gwillimbury Traffic
• Other Cities Along 404
• 404 Ontario Accident Reports (8)
• 404 Ontario Weather Conditions (8)

Live Reports from the DOT's Twitter

• 2 days ago

  511Ontario

  Cleared: Highway Maintenance on #HWY404 Southbound ON-RAMP at 16TH AVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys

• 2 days ago

  511Ontario

  Highway Maintenance on #HWY404 Southbound ON-RAMP at 16TH AVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys https://t.co/TxhHaHub6F

• 2 days ago

  511Ontario

  Cleared: Highway Maintenance on #HWY404 Southbound ON-RAMP at MAJOR MACKENZIE DRIVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys

• 2 days ago

  511Ontario

  Highway Maintenance on #HWY404 Southbound ON-RAMP at MAJOR MACKENZIE DRIVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys https://t.co/jKjoeWagGj

• 2 days ago

  511Ontario

  Cleared: Highway Maintenance on #HWY404 Southbound ON-RAMP at STOUFFVILLE ROAD, Stouffville-Richmondhill. All lanes closed. #Closure #ONHwys

• 2 days ago

  511Ontario

  Highway Maintenance on #HWY404 Southbound ON-RAMP at STOUFFVILLE ROAD, Stouffville-Richmondhill. All lanes closed. #Closure #ONHwys https://t.co/7Sy5MvuSW8

• 2 days ago

  511Ontario

  Cleared: Road Conditions on #HWY404 Northbound ON-RAMP at MAJOR MACKENZIE DRIVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys

• 2 days ago

  511Ontario

  Road Conditions on #HWY404 Northbound ON-RAMP at MAJOR MACKENZIE DRIVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys https://t.co/so0It4jw7K

• 4 days ago

  511Ontario

  Cleared: Collision on #HWY404 Northbound ON-RAMP at MAJOR MACKENZIE DRIVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys

• 4 days ago

  511Ontario

  Collision on #HWY404 Northbound ON-RAMP at MAJOR MACKENZIE DRIVE, Markham-Richmondhill . All lanes closed. #Closure #ONHwys https://t.co/gDvQb9dMU6

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

• taging. Traffic will be controlled by paid duty officers. Speed limit and height restricti

  TYPE: Construction Moderate

• he same intersection during night shifts (8:00?p.m. to 6:00?a.m.) on May 28-29, 2025, usin

  TYPE: Construction Serious

• the same intersection during night shifts (8:00 p.m. to 6:00 a.m.) on May 28-29, 2025, usi

  TYPE: Construction Moderate

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

  TYPE: Miscellaneous Moderate

• uring holiday - no closures Start date: May 30th ,2022. End date : December 10, 2026 6. 1-

  TYPE: Construction Serious

• Expect delays up to 10 minutes. Highway 401 / Wilson Road, Oshawa. 1) May 5, 2025 to May 9

  Road Closed

  TYPE: Miscellaneous Serious

404 ON News Reports

• Highways 404, 407 and 7 re-opened after Saturday closures due to hazardous weather, collisions

  • Ontario
  • Hwy-404

  • source: Bing
  • 17 views
  • Feb 22, 2026 10:20am
  404

  Highways 404, 407 and 7 have re-opened after parts of the highways in the GTA were closed Saturday evening due to poor weather conditions and several collisions.  Dozens of crashes and vehicles in ... Read More

• Winter weather, multiple collisions shut down northbound lanes on Hwy. 404 in Whitchurch-Stouffville

  • Ontario
  • Hwy-404

  • source: Bing
  • 10 views
  • Feb 21, 2026 5:49pm
  404

  The lanes are closed at Bloomington Road because of '?poor driving conditions and multiple vehicle collisions,'? the OPP said. Read More

• Highway 407 on-ramp closed after serious collision: police

  • Ontario
  • Hwy-407

  • source: Bing
  • 23 views
  • Feb 14, 2026 11:55am
  407

  The Ontario Provincial Police (OPP) says some ramps between Highway 407 and Highway 404 have closed due to a serious two-vehicle collision. Read More

• Highway 404, Highway 407 westbound ramps closed due to collision

  • Ontario
  • Hwy-407

  • source: Bing
  • 50 views
  • Feb 14, 2026 11:12am
  407

  The Ontario Provincial Police is alerting the public about highways that are closed in Markham as a result of a crash. Read More