Accident Moderate Severity Resolved

CHP : Disabled vehicle on CA-4 Westbound west of CA-242 N (Concord). Left shoulder affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on May 2, 2026 at 12:00 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 1, 5:00 PM

Last Updated

5 months, 3 weeks ago

May 1, 5:15 PM

Resolved

May 1, 11:15 PM

Coordinates

38.0039, -122.0421

Update History

3 observations

CHP : Disabled vehicle on CA-4 Westbound west of CA-242 N (Concord). Left shoulder affected. Expect delays. May 1, 5:15 PM

CHP : Disabled vehicle on CA-4 Westbound west of CA-242 N (Concord). Lanes affected. Expect delays. May 1, 5:00 PM

CHP : Traffic Hazard on CA-4 Westbound at CA-242 N (Concord). Lanes affected. Expect delays. May 1, 4:45 PM

Source: 511_sfbay · ID 511.org/1488981 First seen May 1, 2026 4:45 PM