Accident Moderate Severity Resolved

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 May 10, 2026 at 5:29 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

May 10, 10:29 AM

Last Updated

5 months, 2 weeks ago

May 10, 10:30 AM

Resolved

May 10, 4:30 PM

Coordinates

38.0034, -122.0429

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of CA-242 S (Concord). Lane affected. Expect delays. May 10, 10:30 AM

Source: 511_sfbay · ID 511.org/1492641 First seen May 10, 2026 10:30 AM