Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Westbound east of Mcewen Rd (Martinez). Right shoulder affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 23, 2026 at 5:42 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 22, 10:42 PM

Last Updated

1 week ago

Jul 23, 12:00 AM

Resolved

Jul 23, 6:15 AM

Coordinates

38.0130, -122.1746

Update History

1 observations

CHP : Traffic Collision on CA-4 Westbound east of Mcewen Rd (Martinez). Right shoulder affected. Expect delays. Jul 22, 11:00 PM

Source: 511_sfbay · ID 511.org/1524991 First seen Jul 22, 2026 11:00 PM