Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on October 14, 2026 at 5:25 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Oct 13, 10:25 PM

Last Updated

1 week, 6 days ago

Oct 13, 10:30 PM

Resolved

Oct 14, 4:30 AM

Coordinates

37.9984, -121.8117

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound at G St (Antioch). Lane affected. Expect delays. Oct 13, 10:30 PM

Source: 511_sfbay · ID 511.org/1563394 First seen Oct 13, 2026 10:30 PM