Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound west of Walnut Blvd (Brentwood). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on August 22, 2026 at 6:26 PM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Aug 22, 11:26 AM

Last Updated

2 months ago

Aug 22, 11:30 AM

Resolved

Aug 22, 5:30 PM

Coordinates

37.8957, -121.7125

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound west of Walnut Blvd (Brentwood). Lane affected. Expect delays. Aug 22, 11:30 AM

Source: 511_sfbay · ID 511.org/1539342 First seen Aug 22, 2026 11:30 AM