Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on June 4, 2026 at 11:52 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 4, 4:52 PM

Last Updated

4 months, 3 weeks ago

Jun 4, 5:15 PM

Resolved

Jun 4, 11:30 PM

Coordinates

37.9987, -121.8180

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of G St (Antioch). Lane affected. Expect delays. Jun 4, 5:00 PM

Source: 511_sfbay · ID 511.org/1503810 First seen Jun 4, 2026 5:00 PM