Accident Moderate Severity Resolved

CHP : Traffic Collision 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 May 1, 2026 at 12:48 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 30, 5:48 PM

Last Updated

5 months, 3 weeks ago

Apr 30, 6:00 PM

Resolved

May 1, 12:00 AM

Coordinates

37.8964, -121.6963

Update History

2 observations

CHP : Traffic Collision on CA-4 Eastbound at Walnut Blvd (Brentwood). Lane affected. Expect delays. Apr 30, 6:00 PM

CHP : Traffic Collision on CA-4 Eastbound at Walnut Blvd (Brentwood). Lane affected. Expect delays. Apr 30, 5:45 PM

Source: 511_sfbay · ID 511.org/1488458 First seen Apr 30, 2026 5:45 PM