Accident High Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound at Bailey Rd (Pittsburg). Right lane and exit ramp blocked. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on September 22, 2026 at 2:06 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Sep 21, 7:06 PM

Last Updated

1 month ago

Sep 21, 11:00 PM

Resolved

Sep 22, 5:00 AM

Coordinates

38.0189, -121.9424

Update History

4 observations

CHP : Traffic Collision on CA-4 Eastbound at Bailey Rd (Pittsburg). Right lane and exit ramp blocked. Expect delays. Sep 21, 8:45 PM

CHP : Traffic Collision on CA-4 Eastbound at Bailey Rd (Pittsburg). Right lane and exit ramp blocked. Expect delays. Sep 21, 8:15 PM

CHP : Traffic Collision on CA-4 Eastbound at Bailey Rd (Pittsburg). Right lane and exit ramp blocked. Expect delays. Sep 21, 7:45 PM

CHP : Traffic Collision on CA-4 Eastbound exiting at Bailey Rd (Pittsburg). Right lane blocked. Expect delays. Sep 21, 7:30 PM

Source: 511_sfbay · ID 511.org/1552689 First seen Sep 21, 2026 7:30 PM