Accident Moderate Severity Resolved

CHP : Residual delays on CA-4 Eastbound entering at Port Chicago Hwy (Concord). Right shoulder affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 12, 2026 at 12:26 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 11, 5:26 PM

Last Updated

14 hours, 42 minutes ago

Aug 11, 5:30 PM

Resolved

Aug 11, 11:30 PM

Coordinates

38.0107, -122.0147

Update History

1 observations

CHP : Residual delays on CA-4 Eastbound entering at Port Chicago Hwy (Concord). Right shoulder affected. Expect delays. Aug 11, 5:30 PM

Source: 511_sfbay · ID 511.org/1534156 First seen Aug 11, 2026 5:30 PM