Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on June 7, 2026 at 8:28 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 7, 1:28 PM

Last Updated

2 days, 12 hours ago

Jun 7, 1:30 PM

Resolved

Jun 7, 7:45 PM

Coordinates

38.0130, -122.1746

Update History

2 observations

CHP : Traffic Hazard on CA-4 Westbound east of Mcewen Rd (Martinez). Left shoulder affected. Expect delays. Jun 7, 1:30 PM

CHP : Traffic Hazard on CA-4 Westbound east of Mcewen Rd (Martinez). Left shoulder affected. Expect delays. Jun 7, 1:15 PM

Source: 511_sfbay · ID 511.org/1504953 First seen Jun 7, 2026 1:15 PM