First published Oct 11, 2026, 3:58:15 PM UTC · Last updated Oct 11, 2026, 3:58:15 PM UTC

accidentsAndIncidents on HWY 401 (Westbound)

A collision closed all lanes on the westbound HWY 401 ramp at Bloomfield Road in Chatham. The reported severity is unknown.

At a glance

Affected location: Chatham

Share this event

Follow: Events in Canada

Manage follows

Why it matters

All lanes on the affected ramp are closed.

Location

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: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 1/10The 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: 6/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

Ontario 511 Traffic Events accidentsAndIncidents on HWY 401 (Westbound)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.

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.
Same topic
roadwork on HWY 417 (Eastbound)Oct 20, 2026, 11:00 PM UTC
Nightly construction closes all lanes of the eastbound HWY 417 off-ramp at St. Albert Road (Interchange 66)/County Road 7 in Casselman, Ontario. The notice was published October 15, 2026.
Same topic
Vehicle collision road disruption — [A12] A12 (E10 ,E11 ,E15 ,E20 ,E9 ) (Newham,Waltham Forest)Oct 20, 2026, 10:41 PM UTC
A collision prompted closure of two westbound lanes on the A12 at the Temple Mills Road junction, in Newham and Waltham Forest. The notice gives a disruption period of 22:41–23:59 UTC on 20 October 2026 and advises caution.
Same topic
NWS Fairbanks issues Winter Storm Watch for Point Hope through October 25Oct 20, 2026, 10:39 PM UTC
A Winter Storm Watch covers Point Hope in Alaska’s Western Arctic Coast from late Thursday night through Sunday afternoon. Blowing snow, up to 4 inches of snow, gusts up to 65 mph, reduced visibility, and travel impacts are possible; power outages could also occur.

Loading related developments…

Explore events in canada