Accident
Resolved
CHP : Residual delays on CA-4 Eastbound west of Lone Tree Way (Antioch). All lanes open. Expect delays.
A accident was reported on CA-4 E near Contra Costa on May 21, 2026 at 11:44 PM.
Last Updated
12 hours, 57 minutes ago
May 21, 5:15 PM
Resolved
May 21, 11:15 PM
Coordinates
37.9979, -121.8058
Update History
3 observations
CHP : Residual delays on CA-4 Eastbound west of Lone Tree Way (Antioch). All lanes open. Expect delays.
May 21, 5:15 PM
CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Lone Tree Way (Antioch). Left and center lanes blocked. Expect delays.
May 21, 5:00 PM
CHP : Traffic Collision with Injuries on CA-4 Eastbound west of G St (Antioch). Lanes blocked. Expect delays.
May 21, 4:45 PM
Source: 511_sfbay · ID 511.org/1497903
First seen May 21, 2026 4:45 PM