Accident Moderate Severity Stale

CHP : Traffic Hazard on CA-4 Westbound east of CA-160 (Antioch). 3rd lane from the left affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on May 23, 2026 at 5:10 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 23, 10:10 AM

Last Updated

2 hours, 34 minutes ago

May 23, 10:30 AM

Coordinates

37.9917, -121.7650

Update History

2 observations

CHP : Traffic Hazard on CA-4 Westbound east of CA-160 (Antioch). 3rd lane from the left affected. Expect delays. May 23, 10:30 AM

CHP : Disabled vehicle on CA-4 Westbound east of CA-160 (Antioch). Lane affected. Expect delays. May 23, 10:15 AM

Source: 511_sfbay · ID 511.org/1498618 First seen May 23, 2026 10:15 AM