Springfield firefighters responded to Carew Street near Mercy Hospital after a compressed air explosion ripped the road apart Friday morning.
Columbia Gas of Massachusetts had an independent contractor pressure checking a gas line for leaks beneath the road using compressed air, according to Deputy Fire Chief Glenn Guyer.
The sub-contractor blew an end cap off of a gas pipe just before 10:30 a.m., which caused the compressed air explosion under the road, Guyer said.
There was no gas involved in the explosion and there were no injuries.
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