Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound west of Bailey Rd (Pittsburg). Right lane blocked. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on September 22, 2026 at 2:18 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Sep 21, 7:18 PM

Last Updated

1 month ago

Sep 21, 8:15 PM

Resolved

Sep 22, 2:15 AM

Coordinates

38.0191, -121.9466

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound west of Bailey Rd (Pittsburg). Right lane blocked. Expect delays. Sep 21, 8:15 PM

Source: 511_sfbay · ID 511.org/1552696 First seen Sep 21, 2026 8:15 PM