Accident Moderate Severity Stale

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 10, 2026 at 2:19 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 9, 7:19 PM

Last Updated

1 hour, 2 minutes ago

Aug 9, 7:45 PM

Coordinates

38.0237, -121.9721

Update History

2 observations

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Lane blocked. Expect delays. Aug 9, 7:30 PM

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Right shoulder affected. Expect delays. Aug 9, 7:15 PM

Source: 511_sfbay · ID 511.org/1533249 First seen Aug 9, 2026 7:15 PM