Accident Moderate Severity Stale

CHP : Traffic Hazard on CA-4 Eastbound west of CA-242 S (Concord). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 20, 2026 at 11:59 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 20, 4:59 PM

Last Updated

2 hours, 47 minutes ago

Aug 20, 5:00 PM

Coordinates

38.0045, -122.0388

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of CA-242 S (Concord). Lane affected. Expect delays. Aug 20, 5:00 PM

Source: 511_sfbay · ID 511.org/1538524 First seen Aug 20, 2026 5:00 PM