Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound at Discovery Bay Blvd (Discovery Bay). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on May 17, 2026 at 11:37 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

May 17, 4:37 PM

Last Updated

3 weeks, 2 days ago

May 17, 5:15 PM

Resolved

May 17, 11:30 PM

Coordinates

37.8904, -121.6022

Update History

2 observations

CHP : Traffic Collision on CA-4 Eastbound at Discovery Bay Blvd (Discovery Bay). Lane affected. Expect delays. May 17, 4:45 PM

CHP : Traffic Collision on CA-4 Eastbound at Discovery Bay Blvd (Discovery Bay). Lane affected. Expect delays. May 17, 4:15 PM

Source: 511_sfbay · ID 511.org/1495815 First seen May 17, 2026 4:15 PM