Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Northbound exiting at Treat Blvd (Walnut Creek). Left lane blocked. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on July 21, 2026 at 3:02 AM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Jul 20, 8:02 PM

Last Updated

1 week, 3 days ago

Jul 20, 8:15 PM

Resolved

Jul 21, 2:15 AM

Coordinates

37.9220, -122.0614

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound exiting at Treat Blvd (Walnut Creek). Left lane blocked. Expect delays. Jul 20, 8:15 PM

Source: 511_sfbay · ID 511.org/1523798 First seen Jul 20, 2026 8:15 PM