Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound east of Hillcrest Ave (Antioch). Lanes affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 5, 2026 at 3:50 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 4, 8:50 PM

Last Updated

3 months, 3 weeks ago

Jul 4, 9:00 PM

Resolved

Jul 5, 3:15 AM

Coordinates

37.9956, -121.7804

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of Hillcrest Ave (Antioch). Lanes affected. Expect delays. Jul 4, 9:00 PM

Source: 511_sfbay · ID 511.org/1516856 First seen Jul 4, 2026 9:00 PM