Accident High Severity Stale

CHP : Traffic Hazard on I-680 Northbound entering at Ygnacio Valley Rd (Walnut Creek). On Ramp blocked. Expect delays.

A high-severity accident was reported on I-680 N near Contra Costa on August 7, 2026 at 1:54 AM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Aug 6, 6:54 PM

Last Updated

58 minutes ago

Aug 6, 7:00 PM

Coordinates

37.9038, -122.0704

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound entering at Ygnacio Valley Rd (Walnut Creek). On Ramp blocked. Expect delays. Aug 6, 7:00 PM

Source: 511_sfbay · ID 511.org/1532061 First seen Aug 6, 2026 7:00 PM