Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound east of Willow Pass Rd (Pittsburg). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 1, 2026 at 12:43 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 31, 5:43 PM

Last Updated

1 day, 3 hours ago

Jul 31, 6:15 PM

Resolved

Aug 1, 12:30 AM

Coordinates

38.0168, -121.9907

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound east of Willow Pass Rd (Pittsburg). Lane affected. Expect delays. Jul 31, 6:15 PM

Source: 511_sfbay · ID 511.org/1529225 First seen Jul 31, 2026 6:15 PM