Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Left lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on July 1, 2026 at 12:10 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 1, 5:10 AM

Last Updated

3 months, 3 weeks ago

Jul 1, 6:30 AM

Resolved

Jul 1, 12:45 PM

Coordinates

38.0237, -121.9721

Update History

3 observations

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Left lane blocked. Expect delays. Jul 1, 6:15 AM

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Left lane blocked. Expect delays. Jul 1, 6:00 AM

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Left lane blocked. Expect delays. Jul 1, 5:15 AM

Source: 511_sfbay · ID 511.org/1515539 First seen Jul 1, 2026 5:15 AM