Accident High Severity Resolved

CHP : Disabled vehicle and Traffic Hazard on CA-4 Westbound west of Alhambra Ave (Martinez). Lanes affected. Expect delays.

A high-severity accident was reported on CA-4 W near Contra Costa on July 3, 2026 at 1:24 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 2, 6:24 PM

Last Updated

3 weeks, 6 days ago

Jul 2, 6:45 PM

Resolved

Jul 3, 1:00 AM

Coordinates

37.9900, -122.1339

Update History

2 observations

CHP : Disabled vehicle and Traffic Hazard on CA-4 Westbound west of Alhambra Ave (Martinez). Lanes affected. Expect delays. Jul 2, 6:45 PM

CHP : Disabled vehicle on CA-4 Westbound west of Alhambra Ave (Martinez). Lane affected. Expect delays. Jul 2, 6:30 PM

Source: 511_sfbay · ID 511.org/1516274 First seen Jul 2, 2026 6:30 PM