Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Lanes affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on September 27, 2026 at 11:45 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Sep 27, 4:45 AM

Last Updated

1 month ago

Sep 27, 5:00 AM

Resolved

Sep 27, 11:15 AM

Coordinates

38.0237, -121.9721

Update History

2 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Lanes affected. Expect delays. Sep 27, 5:00 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Lane blocked. Expect delays. Sep 27, 4:45 AM

Source: 511_sfbay · ID 511.org/1555451 First seen Sep 27, 2026 4:45 AM