The westbound side of Route 2 was closed in Marlborough on Friday morning.
However, the Department of Transportation reported that as of just before 10 a.m., only the right lane was blocked.
The DOT said the closure between exits 16 and 15 and was the result of a crash.
The DOT said the vehicle involved overturned.
It was first reported a little before 9 a.m. on Friday.
There's no word on injuries or a cause.
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