Accident
High Severity
Stale
CHP : Severe traffic alert and Traffic Collision with Injuries and Overturned vehicle on CA-4 Eastbound east of Lone Tree Way (Antioch). Left lanes blocked. Expect delays.
A high-severity accident was reported on CA-4 E near Contra Costa on June 3, 2026 at 2:28 AM.
Last Updated
26 minutes ago
Jun 2, 8:00 PM
Coordinates
37.9981, -121.8014
Update History
2 observations
CHP : Severe traffic alert and Traffic Collision with Injuries and Overturned vehicle on CA-4 Eastbound east of Lone Tree Way (Antioch). Left lanes blocked. Expect delays.
Jun 2, 7:45 PM
CHP : Traffic Collision with Injuries and Overturned vehicle on CA-4 Eastbound east of Lone Tree Way (Antioch). Left lanes blocked. Expect delays.
Jun 2, 7:30 PM
Source: 511_sfbay · ID 511.org/1502884
First seen Jun 2, 2026 7:30 PM