Accident High Severity Resolved

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

A high-severity accident was reported on I-680 S near Contra Costa on September 6, 2026 at 9:37 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Sep 6, 2:37 PM

Last Updated

1 month, 3 weeks ago

Sep 6, 3:00 PM

Resolved

Sep 6, 9:00 PM

Coordinates

37.8149, -121.9935

Update History

1 observations

CHP : Traffic Hazard on I-680 Southbound exiting at Sycamore Valley Rd (Danville). Off Ramp affected. Expect delays. Sep 6, 2:45 PM

Source: 511_sfbay · ID 511.org/1545887 First seen Sep 6, 2026 2:45 PM