Highway 400 closed after multiple collisions - CityNews Toronto
All northbound lanes of Highway 400 have fully reopened after being closed due to icy conditions that led to multiple collisions in York Region.
toronto.citynews.caHere’s the latest I can share based on recent public coverage:
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Highway 400 has had closures and reopening events around York Region, with reports of icy conditions and multi-vehicle collisions prompting temporary lane shutdowns and detours. Some updates note re-openings within a few hours after incidents, while others describe ongoing hazard conditions for drivers in the area. The trend this year includes several closures tied to weather and accident responses, followed by cautions from police to drive carefully.[1][4][6]
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The most recent persistent themes involve icy roadways, traffic disruptions near Major Mackenzie Drive, and advisories to limit travel during severe winter weather, consistent with past incidents on this corridor.[6][1]
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For real-time status, you’ll want to check local Toronto-area outlets (CP24, CityNews, CTV News) or OPP updates, as closures can change rapidly with weather and incident clearing times.[3][9][6]
If you want, I can summarize a specific date’s events (e.g., the latest 24–48 hours) or pull a quick, live-status snapshot from trusted local sources and present it with times and affected interchanges.