Accident
High Severity
Resolved
CHP : Traffic Collision with Injuries on CA-4 Eastbound east of I-680 N (Martinez). Right lanes blocked. Expect delays.
A high-severity accident was reported on CA-4 E near Contra Costa on April 12, 2026 at 7:23 PM.
Last Updated
1 month, 4 weeks ago
Apr 12, 1:30 PM
Coordinates
37.9946, -122.0694
Update History
3 observations
CHP : Traffic Collision with Injuries on CA-4 Eastbound east of I-680 N (Martinez). Right lanes blocked. Expect delays.
Apr 12, 12:45 PM
CHP : Traffic Collision with Injuries on CA-4 Eastbound east of I-680 N (Martinez). Lane open. Expect delays.
Apr 12, 12:30 PM
CHP : Traffic Collision with Injuries on CA-4 Eastbound east of I-680 N (Martinez). Lanes blocked. Expect delays.
Apr 12, 12:15 PM
Source: 511_sfbay · ID 511.org/1480401
First seen Apr 12, 2026 12:15 PM