Accident
High Severity
Resolved
CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound east of Mcewen Rd (Martinez). Left lane blocked. Expect delays.
A high-severity accident was reported on CA-4 E near Contra Costa on October 14, 2026 at 8:58 PM.
Last Updated
1 week, 5 days ago
Oct 14, 2:45 PM
Coordinates
38.0077, -122.1676
Update History
3 observations
CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound east of Mcewen Rd (Martinez). Left lane blocked. Expect delays.
Oct 14, 2:45 PM
CHP : Traffic Collision on CA-4 Eastbound east of Mcewen Rd (Martinez). Left lane blocked. Expect delays.
Oct 14, 2:30 PM
CHP : Traffic Collision on CA-4 Eastbound east of Mcewen Rd (Martinez). Left lane blocked. Expect delays.
Oct 14, 2:15 PM
Source: 511_sfbay · ID 511.org/1563695
First seen Oct 14, 2026 2:15 PM