Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Westbound west of Bixler Rd (Discovery Bay). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on April 21, 2026 at 5:16 PM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Apr 21, 10:16 AM

Last Updated

6 months, 1 week ago

Apr 21, 11:00 AM

Resolved

Apr 21, 5:00 PM

Coordinates

37.8894, -121.6231

Update History

1 observations

CHP : Traffic Collision on CA-4 Westbound west of Bixler Rd (Discovery Bay). Lane affected. Expect delays. Apr 21, 11:00 AM

Source: 511_sfbay · ID 511.org/1484254 First seen Apr 21, 2026 11:00 AM