Accident
Moderate Severity
Stale
CHP : Traffic Collision with Injuries on CA-4 Westbound exiting at Alhambra Ave (Martinez). Left lane blocked. Expect delays.
A injury accident was reported on CA-4 W near Contra Costa on August 8, 2026 at 2:00 AM.
Last Updated
5 hours, 40 minutes ago
Aug 7, 8:00 PM
Coordinates
37.9913, -122.1281
Update History
2 observations
CHP : Traffic Collision with Injuries on CA-4 Westbound exiting at Alhambra Ave (Martinez). Left lane blocked. Expect delays.
Aug 7, 7:45 PM
CHP : Traffic Collision with Injuries on CA-4 Westbound exiting at Alhambra Ave (Martinez). Left lane blocked. Expect delays.
Aug 7, 7:15 PM
Source: 511_sfbay · ID 511.org/1532623
First seen Aug 7, 2026 7:15 PM