Accident
Resolved
CHP : Residual delays on CA-4 Westbound west of Marsh Creek Rd (Brentwood). All lanes open. Expect delays.
A accident was reported on CA-4 W near Contra Costa on June 7, 2026 at 11:39 PM.
Last Updated
2 days, 10 hours ago
Jun 7, 5:15 PM
Coordinates
37.8961, -121.7132
Update History
7 observations
CHP : Residual delays on CA-4 Westbound west of Marsh Creek Rd (Brentwood). All lanes open. Expect delays.
Jun 7, 5:00 PM
CHP : Traffic Collision with Injuries on CA-4 Westbound west of Marsh Creek Rd (Brentwood). Lanes open. Expect delays.
Jun 7, 4:45 PM
CHP : Traffic Collision with Injuries on CA-4 Westbound west of Marsh Creek Rd (Brentwood). Lane blocked. Expect delays.
Jun 7, 4:30 PM
CHP : Traffic Collision with Injuries on CA-4 Westbound west of Marsh Creek Rd (Brentwood). Lane blocked. Expect delays.
Jun 7, 4:15 PM
CHP : Traffic Collision on CA-4 Westbound west of Marsh Creek Rd (Brentwood). Lane blocked. Expect delays.
Jun 7, 4:00 PM
CHP : Traffic Collision on CA-4 Westbound west of Marsh Creek Rd (Brentwood). Lane blocked. Expect delays.
Jun 7, 3:45 PM
CHP : Traffic Collision on CA-4 Westbound west of Marsh Creek Rd (Brentwood). Right shoulder affected. Expect delays.
Jun 7, 3:30 PM
Source: 511_sfbay · ID 511.org/1505000
First seen Jun 7, 2026 3:30 PM