Accident Moderate Severity Stale

CHP : Traffic Collision with Injuries on I-680 Southbound north of Alcosta Blvd (San Ramon). Right lanes blocked. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on October 29, 2026 at 12:31 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Oct 29, 5:31 AM

Last Updated

5 hours, 23 minutes ago

Oct 29, 7:15 AM

Coordinates

37.7286, -121.9443

Update History

4 observations

CHP : Traffic Collision with Injuries on I-680 Southbound north of Alcosta Blvd (San Ramon). Right lanes blocked. Expect delays. Oct 29, 6:45 AM

CHP : Traffic Collision with Injuries and Overturned vehicle on I-680 Southbound north of Alcosta Blvd (San Ramon). Right lanes blocked. Expect delays. Oct 29, 6:30 AM

CHP : Traffic Collision with Injuries and Overturned vehicle on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Oct 29, 6:00 AM

CHP : Traffic Collision with Injuries and Overturned vehicle on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Oct 29, 5:45 AM

Source: 511_sfbay · ID 511.org/1570187 First seen Oct 29, 2026 5:45 AM

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