Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Southbound north of S Main St (Walnut Creek). Left and center lanes affected. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on August 27, 2026 at 1:21 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Aug 26, 6:21 PM

Last Updated

2 months ago

Aug 26, 6:30 PM

Resolved

Aug 27, 12:30 AM

Coordinates

37.8896, -122.0585

Update History

2 observations

CHP : Traffic Hazard on I-680 Southbound north of S Main St (Walnut Creek). Left and center lanes affected. Expect delays. Aug 26, 6:30 PM

CHP : Traffic Hazard on I-680 Southbound north of S Main St (Walnut Creek). Lane affected. Expect delays. Aug 26, 6:15 PM

Source: 511_sfbay · ID 511.org/1541253 First seen Aug 26, 2026 6:15 PM