Accident High Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound west of Bailey Rd (Pittsburg). On Ramp affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on September 14, 2026 at 7:44 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Sep 14, 12:44 AM

Last Updated

1 month, 1 week ago

Sep 14, 2:00 AM

Resolved

Sep 14, 8:15 AM

Coordinates

38.0188, -121.9371

Update History

6 observations

CHP : Traffic Collision on CA-4 Eastbound west of Bailey Rd (Pittsburg). On Ramp affected. Expect delays. Sep 14, 1:00 AM

CHP : Traffic Collision on CA-4 Eastbound west of Bailey Rd (Pittsburg). On Ramp affected. Expect delays. Sep 14, 12:30 AM

CHP : Traffic Collision on CA-4 Eastbound west of Bailey Rd (Pittsburg). On Ramp affected. Expect delays. Sep 13, 11:15 PM

CHP : Traffic Collision on CA-4 Eastbound west of Bailey Rd (Pittsburg). On Ramp affected. Expect delays. Sep 13, 10:45 PM

CHP : Traffic Collision on CA-4 Eastbound west of Bailey Rd (Pittsburg). On Ramp affected. Expect delays. Sep 13, 10:30 PM

CHP : Traffic Collision on CA-4 Eastbound west of Bailey Rd (Pittsburg). Right shoulder affected. Expect delays. Sep 13, 10:15 PM

Source: 511_sfbay · ID 511.org/1548948 First seen Sep 13, 2026 10:15 PM