Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound entering at Willow Pass Rd (Pittsburg). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on October 21, 2026 at 12:21 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Oct 20, 5:21 PM

Last Updated

6 days, 20 hours ago

Oct 20, 5:30 PM

Resolved

Oct 20, 11:45 PM

Coordinates

38.0218, -121.9608

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound entering at Willow Pass Rd (Pittsburg). Lane affected. Expect delays. Oct 20, 5:30 PM

Source: 511_sfbay · ID 511.org/1566415 First seen Oct 20, 2026 5:30 PM