Accident Moderate Severity Resolved

CHP : Traffic Collision and Debris on CA-4 Eastbound east of Cummings Skwy (Port Costa). Left lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on July 30, 2026 at 2:24 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 30, 7:24 AM

Last Updated

19 hours, 47 minutes ago

Jul 30, 7:45 AM

Resolved

Jul 30, 1:45 PM

Coordinates

38.0159, -122.1889

Update History

1 observations

CHP : Traffic Collision and Debris on CA-4 Eastbound east of Cummings Skwy (Port Costa). Left lane affected. Expect delays. Jul 30, 7:30 AM

Source: 511_sfbay · ID 511.org/1528400 First seen Jul 30, 2026 7:30 AM