Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Southbound north of Sycamore Valley Rd (Danville). Left lane blocked. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on May 20, 2026 at 3:22 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

May 20, 8:22 AM

Last Updated

1 day, 11 hours ago

May 20, 8:45 AM

Resolved

May 20, 3:00 PM

Coordinates

37.8149, -121.9935

Update History

1 observations

CHP : Traffic Hazard on I-680 Southbound north of Sycamore Valley Rd (Danville). Left lane blocked. Expect delays. May 20, 8:30 AM

Source: 511_sfbay · ID 511.org/1497113 First seen May 20, 2026 8:30 AM