Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on May 15, 2026 at 11:09 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 15, 4:09 PM

Last Updated

5 months, 1 week ago

May 15, 4:45 PM

Resolved

May 15, 11:00 PM

Coordinates

38.0107, -122.0175

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of Port Chicago Hwy (Concord). 2nd lane from the left affected. Expect delays. May 15, 4:15 PM

Source: 511_sfbay · ID 511.org/1495046 First seen May 15, 2026 4:15 PM