Accident
Moderate Severity
Resolved
CHP : Traffic Hazard on CA-4 Westbound west of San Joaquin County Line (Byron). Lane blocked. Expect delays.
A injury accident was reported on CA-4 W near Contra Costa on June 22, 2026 at 9:39 PM.
Last Updated
4 months ago
Jun 22, 4:00 PM
Resolved
Jun 22, 10:15 PM
Coordinates
37.8914, -121.5702