Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Westbound east of Bailey Rd (Pittsburg). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on May 23, 2026 at 10:59 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 23, 3:59 PM

Last Updated

10 hours, 39 minutes ago

May 23, 4:00 PM

Resolved

May 23, 10:00 PM

Coordinates

38.0191, -121.9372

Update History

2 observations

CHP : Traffic Collision on CA-4 Westbound east of Bailey Rd (Pittsburg). Lane affected. Expect delays. May 23, 4:00 PM

CHP : Traffic Collision on CA-4 Westbound east of Bailey Rd (Pittsburg). Lane affected. Expect delays. May 23, 3:45 PM

Source: 511_sfbay · ID 511.org/1498719 First seen May 23, 2026 3:45 PM