Accident Moderate Severity Stale

CHP : Traffic Hazard on CA-4 Eastbound west of G St (Antioch). Right lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on June 1, 2026 at 2:21 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

May 31, 7:21 PM

Last Updated

1 hour, 8 minutes ago

May 31, 7:30 PM

Coordinates

37.9981, -121.8111

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of G St (Antioch). Right lane affected. Expect delays. May 31, 7:30 PM

Source: 511_sfbay · ID 511.org/1501902 First seen May 31, 2026 7:30 PM