Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Walnut Blvd (Brentwood). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on July 9, 2026 at 12:42 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 8, 5:42 PM

Last Updated

3 weeks, 2 days ago

Jul 8, 6:30 PM

Resolved

Jul 9, 12:30 AM

Coordinates

37.8964, -121.6963

Update History

1 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Walnut Blvd (Brentwood). Lane affected. Expect delays. Jul 8, 5:45 PM

Source: 511_sfbay · ID 511.org/1518406 First seen Jul 8, 2026 5:45 PM