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Antioch, CA (May 5, 2026) – A single-vehicle crash with injuries was reported Tuesday morning, May 5, on State Route 4 eastbound near the Railroad Ave off-ramp in Antioch. The incident was first logged around 6:12 a.m., with early details indicating the vehicle came to rest off the roadway on the right-hand side.
Emergency units responded and found a passenger lying on the ground near the vehicle, approximately 20 feet away. The circumstances leading up to the crash have not been fully detailed, but the incident was later classified as involving injuries.
Traffic in the area was impacted as multiple lanes were temporarily blocked during the response. Crews conducted traffic breaks to slow traffic while clearing the scene and safely removing the damaged vehicle.
All lanes were eventually reopened after the roadway was cleared. Authorities continue to investigate the cause of the crash, and more details will be released as soon as they become available. Our thoughts are with those injured as they receive medical care.
Why Vehicles Sometimes Leave the Roadway During Highway Crashes
Vehicles may leave the roadway during a crash due to sudden steering, loss of traction, or attempts to avoid another hazard. These situations can cause a driver to lose control, especially at higher speeds.
When a vehicle exits the roadway, it may strike uneven ground, barriers, or roadside objects. This can increase the force of impact and cause occupants to be thrown from their positions inside the vehicle.
Highway environments can increase risk, as traffic moves quickly and drivers have less time to react. Keeping a safe speed and maintaining control of the vehicle can help reduce the chances of leaving the roadway during an incident.
