Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on May 12, 2026 at 3:27 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 12, 8:27 AM

Last Updated

5 months, 2 weeks ago

May 12, 8:30 AM

Resolved

May 12, 2:30 PM

Coordinates

37.9956, -121.7804

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound at Hillcrest Ave (Antioch). Lane affected. Expect delays. May 12, 8:30 AM

Source: 511_sfbay · ID 511.org/1493333 First seen May 12, 2026 8:30 AM