Accident High Severity Resolved

CHP : Traffic Hazard on I-680 Northbound exiting at Alcosta Blvd (San Ramon). Off Ramp affected. Expect delays.

A high-severity accident was reported on I-680 N near Contra Costa on May 8, 2026 at 3:06 AM.

Road

I-680 N

Area

Contra Costa

Address

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Started

May 7, 8:06 PM

Last Updated

1 month ago

May 7, 8:30 PM

Resolved

May 8, 2:30 AM

Coordinates

37.7236, -121.9400

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound exiting at Alcosta Blvd (San Ramon). Off Ramp affected. Expect delays. May 7, 8:15 PM

Source: 511_sfbay · ID 511.org/1491581 First seen May 7, 2026 8:15 PM