Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Westbound at Mcewen Rd (Martinez). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on June 14, 2026 at 1:02 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 14, 6:02 AM

Last Updated

4 months, 2 weeks ago

Jun 14, 6:30 AM

Resolved

Jun 14, 12:30 PM

Coordinates

38.0130, -122.1746

Update History

1 observations

CHP : Traffic Collision on CA-4 Westbound at Mcewen Rd (Martinez). Lane affected. Expect delays. Jun 14, 6:15 AM

Source: 511_sfbay · ID 511.org/1508149 First seen Jun 14, 2026 6:15 AM