Accident
Moderate Severity
Stale
CHP : Traffic Collision on CA-4 Westbound east of Marsh Creek Rd (Brentwood). Left lane blocked. Expect delays.
A injury accident was reported on CA-4 W near Contra Costa on April 26, 2026 at 7:10 PM.
Last Updated
34 minutes ago
Apr 26, 1:45 PM
Coordinates
37.8958, -121.7127
Update History
4 observations
CHP : Traffic Collision on CA-4 Westbound east of Marsh Creek Rd (Brentwood). Left lane blocked. Expect delays.
Apr 26, 1:30 PM
CHP : Traffic Collision on CA-4 Westbound east of Marsh Creek Rd (Brentwood). Left lane blocked. Expect delays.
Apr 26, 1:00 PM
CHP : Traffic Collision on CA-4 Westbound east of Marsh Creek Rd (Brentwood). Left lane blocked. Expect delays.
Apr 26, 12:30 PM
CHP : Traffic Collision on CA-4 Eastbound east of Byron Hwy (Brentwood). Lane blocked. Expect delays.
Apr 26, 12:15 PM
Source: 511_sfbay · ID 511.org/1486332
First seen Apr 26, 2026 12:15 PM