Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Westbound at Willow Pass Rd (Concord). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 25, 2026 at 7:05 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 25, 12:05 PM

Last Updated

4 days, 22 hours ago

Jul 25, 12:45 PM

Resolved

Jul 25, 7:00 PM

Coordinates

38.0142, -121.9970

Update History

1 observations

CHP : Traffic Collision on CA-4 Westbound at Willow Pass Rd (Concord). Lane affected. Expect delays. Jul 25, 12:15 PM

Source: 511_sfbay · ID 511.org/1526187 First seen Jul 25, 2026 12:15 PM