Accident High Severity Resolved

CHP : Traffic Hazard on I-680 Southbound ramp to CA-24 W (Walnut Creek). On Ramp affected. Expect delays.

A high-severity accident was reported on I-680 S near Contra Costa on October 23, 2026 at 12:42 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Oct 22, 5:42 PM

Last Updated

4 days, 14 hours ago

Oct 22, 6:00 PM

Resolved

Oct 23, 12:15 AM

Coordinates

37.9086, -122.0687

Update History

2 observations

CHP : Traffic Hazard on I-680 Southbound ramp to CA-24 W (Walnut Creek). On Ramp affected. Expect delays. Oct 22, 6:00 PM

CHP : Traffic Hazard on I-680 Southbound at CA-24 W (Walnut Creek). On Ramp affected. Expect delays. Oct 22, 5:45 PM

Source: 511_sfbay · ID 511.org/1567316 First seen Oct 22, 2026 5:45 PM