Accident Moderate Severity Active

CHP : Traffic Hazard on CA-4 Eastbound west of Laurel Rd (Antioch). Right shoulder affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 31, 2026 at 6:11 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 30, 11:11 PM

Last Updated

4 minutes ago

Aug 31, 12:30 AM

Coordinates

37.9877, -121.7509

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of Laurel Rd (Antioch). Right shoulder affected. Expect delays. Aug 30, 11:30 PM

Source: 511_sfbay · ID 511.org/1543025 First seen Aug 30, 2026 11:30 PM