Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound west of Laurel Rd (Antioch). 2nd lane from the left affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on September 10, 2026 at 1:54 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Sep 9, 6:54 PM

Last Updated

1 month, 2 weeks ago

Sep 9, 7:00 PM

Resolved

Sep 10, 1:00 AM

Coordinates

37.9761, -121.7419

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound west of Laurel Rd (Antioch). 2nd lane from the left affected. Expect delays. Sep 9, 7:00 PM

Source: 511_sfbay · ID 511.org/1547111 First seen Sep 9, 2026 7:00 PM