A traffic collision was reported on westbound State Route 4 near the State Route 160 north connector in Contra Costa County on October 2, 2026. The California Highway Patrol classified the incident as a collision with unknown injuries.
The crash was reported at about 3:48 p.m. The location was described as westbound State Route 4 just east of the State Route 160 connector.
CHP dispatch information did not identify the vehicles involved or provide details about damage, roadway obstructions, or whether any lanes were blocked. No information about medical treatment or ambulance transportation was included in the available log.
A CHP update was recorded at approximately 3:55 p.m., but the dispatch record provided no additional public details about the collision. The incident was handled within the agency’s Contra Costa area.
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