VACAVILLE (CBS SF) — All westbound lanes of Interstate Highway 80 in Vacaville have reopened Thursday following a closure caused by a tractor trailer that overturned and spilled its load of 15-20 crushed vehicles onto the highway, the California Highway Patrol said.

The No. 4 westbound lane remained closed until just before 5:30 p.m., the CHP said.

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Shortly after 3 p.m., CHP reported that the tractor trailer had overturned onto its side east of Cherry Glen Road on westbound I-80, blocking all lanes.

I-80 closed by tractor trailer crash in Vacaville (Fairfield Fire Dept.)

Four other vehicles were initially reported to be involved, but the CHP later said they were vehicles had already been crushed.

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Authorities later clarified that the tractor-trailer was carrying approximately 15-20 demolished cars that fell along the freeway, creating a massive cleanup operation for crews.

The driver of the big-rig that landed on its side was able to escape by breaking a window, according to the CHP.

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Traffic was diverted off Lagoon Valley Road during the closure. Motorists are advised to expect delays and to use alternate routes such as southbound 113 to Highway 12 to avoid the area.