Two vehicles collided Thursday afternoon in the center divider of northbound Interstate 680 just south of the Ygnacio Valley Road off-ramp in Contra Costa County. The California Highway Patrol recorded the incident at about 3:59 p.m. on Aug. 27, 2026, with an ambulance listed as en route.
The crash location was identified as northbound I-680 near the Ygnacio Valley Road off-ramp. CHP dispatch information indicated that both vehicles were in the center-divider area.
An ambulance was being sent to the scene as part of the emergency response. The dispatch information did not specify whether anyone was injured or whether anyone was taken to a hospital.
The available CHP update, logged at about 3:57 p.m., confirmed that two vehicles were involved and located in the center divider. No additional information about the vehicles or a final roadway status was provided.
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