First published Oct 11, 2026, 9:46:15 AM UTC · Last updated Oct 11, 2026, 9:46:15 AM UTC

Collision closes all lanes on southbound HWY 418 on-ramp in Clarington

A collision was reported on the southbound HWY 418 on-ramp at Taunton Road in Clarington, with all lanes closed. The source lists the severity as unknown.

At a glance

Affected location: Clarington, Ontario

Illustrative image: King's Highway 401, commonly referred to as Highway 401 and also known by its official name as the Macdonald–Cartier Freeway or colloquially as the four-oh-one, is a 400-series highway in the Canadian province of Ontario. It stretches 828.0 kilometres (514.5 mi) from Windsor in the west to the Ontario–Quebec border in the east. The part of Highway 401 that passes through Toronto is the busiest highway in the world, and one of the widest. Together with Quebec Autoroute 20, it forms the road trans — Ken Lund from Reno, Nevada, USA/Wikimedia Commons, CC BY-SA 2.0

Share this event

Follow: Events in Canada

Manage follows

Why it matters

The reported full closure affects traffic at the on-ramp.

Location

Show nearby reports · last 30 days

Highlighted marker: this event.

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 6/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 1/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

Ontario 511 Traffic Events accidentsAndIncidents on HWY 418 (Southbound)Contains information licensed under the Open Government Licence – Ontario (https://www.ontario.ca/page/open-government-licence-ontario). Source: Ontario 511. Information is provided “as is”; actual roadway conditions may differ. No endorsement by Ontario 511, MTO, or the Government of Ontario is implied. Usage terms

Report an issue

Read our editorial process and corrections policy.

Continue exploring

Related developments reported in the last 30 days. These are not necessarily ongoing incidents.

Nearby · within 200 km
Frost (advisory) - Mississauga - BramptonOct 20, 2026, 5:19 PM UTC
3 sequential or cross-source alerts are grouped here. Expand the group to review every affected area and source report.
Nearby · within 200 km
roadwork on HWY 403 MISSISSAUGA (Westbound)Oct 20, 2026, 3:00 AM UTC
The source reports nightly maintenance with all lanes closed on a westbound off-ramp at Winston Churchill Boulevard in Mississauga. It identifies the reporting organization as MTO and provides coordinates.
Same topic
Traffic signal fault road disruption — [A4020] UXBRIDGE ROAD (UB1 ,UB3 ,UB4 ) (Ealing,Hillingdon)Oct 21, 2026, 4:49 AM UTC
Traffic signals on Uxbridge Road were reported damaged in a collision. The source advised approaching with caution and reported that traffic was flowing well.
Same topic
Special Marine Warning issued October 20 at 11:09PM AST until October 21 at 12:30AM AST by NWS San Juan PROct 21, 2026, 3:09 AM UTC
The National Weather Service in San Juan issued a marine warning for Atlantic waters of Puerto Rico and the U.S. Virgin Islands after radar indicated a severe thunderstorm capable of producing waterspouts. The warning instructed boaters to seek safe harbor immediately; additional details were not included in the source data received by Planet Briefing.
Same topic
TfL disruption — OLD KENT ROADOct 21, 2026, 2:13 AM UTC
Old Kent Road is closed in both directions at Madron Street following an emergency services incident, and several bus routes are diverted. TfL advises allowing extra time for journeys.
Same topic
Vehicle incident blocks right lane on Highway 1 near Surrey, causing major delaysOct 21, 2026, 1:26 AM UTC
The source reports a vehicle incident on Highway 1 near Surrey, with the right lane blocked and major congestion delays. It identifies the area as the Lower Mainland District and gives coordinates of 49.166763, -122.679461.

Loading related developments…

Explore events in canada