Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound east of CA-242 N (Concord). Right lane blocked. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 19, 2026 at 12:57 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 18, 5:57 PM

Last Updated

1 week, 4 days ago

Jul 18, 6:15 PM

Resolved

Jul 19, 12:30 AM

Coordinates

38.0071, -122.0345

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of CA-242 N (Concord). Right lane blocked. Expect delays. Jul 18, 6:00 PM

Source: 511_sfbay · ID 511.org/1523086 First seen Jul 18, 2026 6:00 PM