Accident Moderate Severity Stale

CHP : Traffic Hazard on CA-4 Westbound east of Cummings Skwy (Port Costa). 2nd lane from the left affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on June 3, 2026 at 12:51 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 2, 5:51 PM

Last Updated

3 hours, 8 minutes ago

Jun 2, 6:00 PM

Coordinates

38.0163, -122.1862

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of Cummings Skwy (Port Costa). 2nd lane from the left affected. Expect delays. Jun 2, 6:00 PM

Source: 511_sfbay · ID 511.org/1502847 First seen Jun 2, 2026 6:00 PM