Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on May 2, 2026 at 11:18 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 2, 4:18 PM

Last Updated

6 months ago

May 2, 4:30 PM

Resolved

May 2, 10:45 PM

Coordinates

37.9956, -121.7804

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of Hillcrest Ave (Antioch). Lane affected. Expect delays. May 2, 4:30 PM

Source: 511_sfbay · ID 511.org/1489359 First seen May 2, 2026 4:30 PM