Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound west of Alhambra Ave (Martinez). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 27, 2026 at 5:41 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 26, 10:41 PM

Last Updated

1 day, 2 hours ago

Aug 26, 11:00 PM

Resolved

Aug 27, 5:15 AM

Coordinates

37.9899, -122.1333

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of Alhambra Ave (Martinez). Lane affected. Expect delays. Aug 26, 11:00 PM

Source: 511_sfbay · ID 511.org/1541403 First seen Aug 26, 2026 11:00 PM