STORY POSTED AT 5:55 P.M.

CLEARLAKE OAKS – Officials are estimating that Highway 20 will be closed until early Wednesday morning because of a crash that injured several people and left a big rig in a creek.

Several California Highway Patrol units were reported to be at the scene, where the crash occurred shortly before 3:30 p.m.

The crash occurred on Highway 20 at mile post marker 35, east of Clearlake Oaks, leaving the roadway closed down not long afterward, according to the CHP.

At 5:30 p.m., officials estimated that the highway will be closed for approximately eight hours.

Caltrans was closing Highway 20 at Highway 16 near Brooks in Colusa County and also was shutting down eastbound Highway 53. CHP units were being called to respond to turn traffic around at Highway 16.

The big rig, carrying pears, was said to be in Cache Creek, with Fish and Game and hazmat units called to the scene. Officials were discussing damming the creek to try to contain the spill.

County Environmental Health officers were on their way to the scene shortly before 6 p.m.

Two REACH air ambulances landed at the scene to transport several people injured in the head-on crash. Specifics about the number of injured were unavailable Tuesday afternoon.

More updates will be provided as information becomes available.

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