Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on June 7, 2026 at 2:44 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 6, 7:44 PM

Last Updated

3 days, 6 hours ago

Jun 6, 7:45 PM

Resolved

Jun 7, 1:45 AM

Coordinates

38.0174, -121.9904

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound at Willow Pass Rd (Concord). Lane blocked. Expect delays. Jun 6, 7:45 PM

Source: 511_sfbay · ID 511.org/1504777 First seen Jun 6, 2026 7:45 PM