Route 25 in Gorham reopened at about noon Wednesday after a four-vehicle crash during rush hour shut down the busy commuter road.

An eastbound van driven by Alex Julien, 22, crossed the centerline and collided with a dump truck loaded with gravel near Farmington Road at 8:15 a.m., Interim Chief Christopher Sanborn said.

Philip Mackerron, 57, the driver of the dump truck, swerved and almost hit a Toyota 4-Runner behind the van, spraying some of its load of gravel onto the Toyota, he said. The truck crashed onto a lawn, dumping its load.

Meanwhile, the van continued eastbound in the westbound lane and a GMC Yukon driven by Dariane Shaw, 32, that was following the dump truck, swerved to avoid the van and hit a utility pole, he said.

Julien and Mackerron were taken to Maine Medical Center in Portland with minor injuries. Police said there is no indication yet what caused the van to cross the centerline.

Sanborn said it was fortunate the crash did not happen before the end of the school semester because children would have been waiting along the street at that time for the bus.

Traffic was detoured around the area, near the Standish town line, for almost four hours.

The cause of the crash is still being investigated.