Accident High Severity Resolved

CHP : Traffic Hazard on I-680 Northbound exiting at Sycamore Valley Rd (Danville). Off Ramp blocked. Expect delays.

A high-severity accident was reported on I-680 N near Contra Costa on August 3, 2026 at 11:29 PM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Aug 3, 4:29 PM

Last Updated

13 hours, 57 minutes ago

Aug 3, 4:45 PM

Resolved

Aug 3, 11:00 PM

Coordinates

37.8081, -121.9912

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound exiting at Sycamore Valley Rd (Danville). Off Ramp blocked. Expect delays. Aug 3, 4:45 PM

Source: 511_sfbay · ID 511.org/1530384 First seen Aug 3, 2026 4:45 PM