Two car crashes on Route 495 caused traffic delays on both sides of the highway Wednesday morning.
In Andover, a tractor-trailer rollover crash caused a gravel spill on I-495 southbound, just south of the I-93 southbound on-ramp. Three lanes were closed due to the crash, with only the high-speed and breakdown lanes getting by. The ramp from I-93 southbound remains open but to may need to be closed temporarily for cleanup.
Crews had to upright the tractor-trailer and brought a bulldozer in to clear the debris. The Massachusetts Department of Transportation said commuters should expect major delays and avoid the area if possible.
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A second crash occurred on the northbound side of Route 495. Crews are working to clear that as well. No further information was immediately available.
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