Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound at Walnut Blvd (Brentwood). Lanes blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on October 9, 2026 at 11:54 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Oct 9, 4:54 PM

Last Updated

2 weeks, 3 days ago

Oct 9, 5:00 PM

Resolved

Oct 9, 11:15 PM

Coordinates

37.8964, -121.6963

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound at Walnut Blvd (Brentwood). Lanes blocked. Expect delays. Oct 9, 5:00 PM

Source: 511_sfbay · ID 511.org/1561647 First seen Oct 9, 2026 5:00 PM