Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Southbound north of CA-24 W (Walnut Creek). Left lanes affected. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on July 29, 2026 at 1:44 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Jul 29, 6:44 AM

Last Updated

13 hours, 36 minutes ago

Jul 29, 7:00 AM

Resolved

Jul 29, 1:00 PM

Coordinates

37.9101, -122.0682

Update History

2 observations

CHP : Traffic Hazard on I-680 Southbound north of CA-24 W (Walnut Creek). Left lanes affected. Expect delays. Jul 29, 7:00 AM

CHP : Traffic Hazard on I-680 Southbound north of Olympic Blvd (Walnut Creek). HOV affected. Expect delays. Jul 29, 6:45 AM

Source: 511_sfbay · ID 511.org/1527799 First seen Jul 29, 2026 6:45 AM