Traffic stalled on Route 495 due to Littleton crash with life-threatening injuries, police say

Traffic stalled just south of exit 79 on Route 495 Wednesday night after a crash injured two people in Littleton, with one facing life-threatening injuries.

Around 4:30 p.m. a vehicle swerved into the opposite lane, hitting another vehicle, Massachusetts State Police told Boston 25 News.

The driver of the vehicle that swerved into oncoming traffic suffered life-threatening injuries and was air-lifted to a nearby hospital.

The other vehicle that was struck is dealing with minor injuries, state police say.

All lanes of traffic were shut down for Med Flight to transport the driver with serious injuries, and state police to investigate.

MassDOT alerted drivers that both the northbound and southbound lanes were closed prior to exit 79 just after 5:15 p.m.

A traffic camera in Westford showed that Route 495 had turned into a parking lot.

It wasn’t until 5:50 P.M. when the first two lanes of Route 495 North were reopened, while the third lane and Route 495 South remained closed.

Commuters from 495 southbound were detoured to exits 80 and 83, causing traffic to be backed up for 10 miles.

At 7:25 P.M., Mass. State Police had concluded their investigation and cleanup process, allowing for all lanes of travel to be reopened.

This is a developing story. Check back for updates as more information becomes available.

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