Accident
High Severity
Resolved
CHP : Traffic Collision with Injuries and Overturned vehicle on CA-4 Westbound exiting at Laurel Rd (Antioch). Off Ramp closed. Expect delays.
A high-severity accident was reported on CA-4 W near Contra Costa on May 9, 2026 at 12:14 AM.
Last Updated
1 month ago
May 8, 6:15 PM
Coordinates
37.9762, -121.7419
Update History
4 observations
CHP : Traffic Collision with Injuries and Overturned vehicle on CA-4 Westbound exiting at Laurel Rd (Antioch). Off Ramp closed. Expect delays.
May 8, 6:15 PM
CHP : Traffic Collision with Injuries and Overturned vehicle on CA-4 Westbound exiting at Laurel Rd (Antioch). Off Ramp closed. Expect delays.
May 8, 5:45 PM
CHP : Traffic Collision with Injuries and Overturned vehicle on CA-4 Westbound exiting at Laurel Rd (Antioch). Off Ramp blocked. Expect delays.
May 8, 5:30 PM
CHP : Traffic Collision with Injuries on CA-4 Westbound at Laurel Rd (Antioch). Lane blocked. Expect delays.
May 8, 5:15 PM
Source: 511_sfbay · ID 511.org/1492019
First seen May 8, 2026 5:15 PM