Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on I-680 Northbound at Treat Blvd (Walnut Creek). Lane affected. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on July 26, 2026 at 4:21 AM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Jul 25, 9:21 PM

Last Updated

1 day, 16 hours ago

Jul 25, 10:15 PM

Resolved

Jul 26, 4:30 AM

Coordinates

37.9220, -122.0614

Update History

2 observations

CHP : Traffic Collision with Injuries on I-680 Northbound at Treat Blvd (Walnut Creek). Lane affected. Expect delays. Jul 25, 9:30 PM

CHP : Traffic Collision on I-680 Northbound at Treat Blvd (Walnut Creek). Lane affected. Expect delays. Jul 25, 9:15 PM

Source: 511_sfbay · ID 511.org/1526382 First seen Jul 25, 2026 9:15 PM