Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound west of G St (Antioch). Lanes affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on April 30, 2026 at 2:32 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Apr 29, 7:32 PM

Last Updated

5 months, 3 weeks ago

Apr 29, 7:45 PM

Resolved

Apr 30, 1:45 AM

Coordinates

37.9987, -121.8180

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound west of G St (Antioch). Lanes affected. Expect delays. Apr 29, 7:45 PM

Source: 511_sfbay · ID 511.org/1487951 First seen Apr 29, 2026 7:45 PM