Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Center lanes affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 8, 2026 at 12:25 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 7, 5:25 PM

Last Updated

11 hours, 9 minutes ago

Aug 7, 5:45 PM

Resolved

Aug 7, 11:45 PM

Coordinates

38.0006, -122.0541

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Center lanes affected. Expect delays. Aug 7, 5:45 PM

Source: 511_sfbay · ID 511.org/1532580 First seen Aug 7, 2026 5:45 PM