Accident Moderate Severity Stale

CHP : Traffic Hazard on I-680 Southbound north of Alcosta Blvd (San Ramon). Center lanes affected. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on May 21, 2026 at 3:13 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

May 21, 8:13 AM

Last Updated

2 hours, 53 minutes ago

May 21, 8:15 AM

Coordinates

37.7286, -121.9443

Update History

1 observations

CHP : Traffic Hazard on I-680 Southbound north of Alcosta Blvd (San Ramon). Center lanes affected. Expect delays. May 21, 8:15 AM

Source: 511_sfbay · ID 511.org/1497678 First seen May 21, 2026 8:15 AM