Accident Moderate Severity Resolved

CHP : Disabled vehicle on CA-4 Westbound east of Port Chicago Hwy (Concord). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on September 27, 2026 at 11:41 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Sep 27, 4:41 PM

Last Updated

4 weeks, 1 day ago

Sep 27, 4:45 PM

Resolved

Sep 27, 10:45 PM

Coordinates

38.0101, -122.0213

Update History

1 observations

CHP : Disabled vehicle on CA-4 Westbound east of Port Chicago Hwy (Concord). Lane affected. Expect delays. Sep 27, 4:45 PM

Source: 511_sfbay · ID 511.org/1555622 First seen Sep 27, 2026 4:45 PM