Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on May 10, 2026 at 5:11 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 9, 10:11 PM

Last Updated

5 months, 2 weeks ago

May 9, 10:30 PM

Resolved

May 10, 4:45 AM

Coordinates

38.0216, -121.9419

Update History

2 observations

CHP : Traffic Collision on CA-4 Westbound at Bailey Rd (Pittsburg). Lane affected. Expect delays. May 9, 10:15 PM

CHP : Traffic Collision on CA-4 Westbound at Bailey Rd (Pittsburg). Lane affected. Expect delays. May 9, 10:00 PM

Source: 511_sfbay · ID 511.org/1492542 First seen May 9, 2026 10:00 PM