Accident Moderate Severity Stale

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

A injury accident was reported on CA-4 E near Contra Costa on April 26, 2026 at 1:00 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 25, 6:00 PM

Last Updated

1 hour, 43 minutes ago

Apr 25, 6:30 PM

Coordinates

38.0006, -122.0541

Update History

2 observations

CHP : Traffic Hazard on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Left lane affected. Expect delays. Apr 25, 6:15 PM

CHP : Traffic Hazard on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Left lane affected. Expect delays. Apr 25, 6:00 PM

Source: 511_sfbay · ID 511.org/1486170 First seen Apr 25, 2026 6:00 PM