Bay City News Service
Westbound state Highway 4 was closed for nearly an hour Thursday morning after a school bus and a big rig collided near Concord, a California Highway Patrol spokesman said.
One student was riding on the bus, but no injuries were reported, said CHP Officer John Fransen. The collision was reported on westbound Highway 4 just east of Port Chicago Highway about 8:25 a.m. Thursday.
A Sig-alert was issued at 8:35 a.m. It was lifted at 9:25 a.m., but the Port Chicago Highway on-ramp remained closed later in the morning. The collision remains under investigation, Fransen said.
Traffic was diverted to state Highway 242, just west of Port Chicago Highway, during the closure.
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