Accident
High Severity
Active
CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound east of Willow Pass Rd (Pittsburg). Left lanes blocked. Expect delays.
A high-severity accident was reported on CA-4 E near Contra Costa on April 24, 2026 at 11:40 PM.
Last Updated
1 minute ago
Apr 24, 6:00 PM
Coordinates
38.0137, -121.9970
Update History
3 observations
CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound east of Willow Pass Rd (Pittsburg). Left lanes blocked. Expect delays.
Apr 24, 5:45 PM
CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound east of Willow Pass Rd (Pittsburg). Left lanes blocked. Expect delays.
Apr 24, 4:45 PM
CHP : Traffic Hazard on CA-4 Eastbound east of Port Chicago Hwy (Concord). Lane blocked. Expect delays.
Apr 24, 4:30 PM
Source: 511_sfbay · ID 511.org/1485710
First seen Apr 24, 2026 4:30 PM