Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 E near Contra Costa on September 10, 2026 at 1:28 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Sep 9, 6:28 PM

Last Updated

1 month, 2 weeks ago

Sep 9, 6:30 PM

Resolved

Sep 10, 12:45 AM

Coordinates

38.0106, -122.0157

Update History

1 observations

CHP : Residual delays on CA-4 Eastbound entering at Port Chicago Hwy (Concord). Left shoulder affected. Expect delays. Sep 9, 6:30 PM

Source: 511_sfbay · ID 511.org/1547101 First seen Sep 9, 2026 6:30 PM