Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Southbound at Sycamore Valley Rd (Danville). Right lane affected. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on October 20, 2026 at 11:33 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Oct 20, 4:33 PM

Last Updated

6 days, 15 hours ago

Oct 20, 5:00 PM

Resolved

Oct 20, 11:00 PM

Coordinates

37.8085, -121.9918

Update History

1 observations

CHP : Traffic Hazard on I-680 Southbound at Sycamore Valley Rd (Danville). Right lane affected. Expect delays. Oct 20, 4:45 PM

Source: 511_sfbay · ID 511.org/1566390 First seen Oct 20, 2026 4:45 PM