Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound west of Laurel Rd (Antioch). Left lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on October 23, 2026 at 11:39 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Oct 23, 4:39 PM

Last Updated

3 days, 12 hours ago

Oct 23, 4:45 PM

Resolved

Oct 23, 11:00 PM

Coordinates

37.9760, -121.7424

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of Laurel Rd (Antioch). Left lane affected. Expect delays. Oct 23, 4:45 PM

Source: 511_sfbay · ID 511.org/1567759 First seen Oct 23, 2026 4:45 PM