Hwy. 401 Closure in Milton: Two Westbound Lanes Shut After Crashes and Oil Spill

Two westbound lanes of Hwy. 401 near Regional Road 25 were shut down in Milton after multiple crashes caused an oil leak.

A messy stretch of Highway 401 in Milton is turning a Friday morning commute into a headache after multiple collisions and a heavy oil spill.

Misryoum reports that Ontario Provincial Police say two westbound lanes near Regional Road 25 were closed after the crashes earlier in the morning. Officers reduced traffic to a single westbound lane as cleanup and investigation work got underway.

The key issue is that the oil has coated part of the roadway, meaning crews need time to clean it thoroughly before drivers can return to normal lanes.

Motorists are being warned that the closure could be lengthy. With lanes limited, congestion is building in the area, and police say drivers should consider alternate routes to avoid delays.

Meanwhile, tow trucks and highway maintenance teams remain on scene managing the situation and supporting response efforts. Police have not reported injuries so far, but they continue to assess the scene as work continues.

This kind of highway incident matters beyond the moment it happens, because spill cleanup and safety checks can affect traffic for hours and ripple out to nearby exits and side roads.

Misryoum notes that the closures are expected to remain in place while cleanup crews address the contamination and investigators complete their assessment.

Drivers traveling through Milton’s Highway 401 corridor are encouraged to slow down near the work area and follow police instructions as crews work to get traffic moving again safely.

In the meantime, patience and route planning are likely the biggest tools for anyone heading westbound, as responders balance traffic control with the need to fully address the spill.