Accident Moderate Severity Resolved

CHP : Traffic Collision on I-680 Northbound exiting at Alcosta Blvd (San Ramon). Left lane blocked. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on September 11, 2026 at 3:09 AM.

Road

I-680 N

Area

Contra Costa

Address

Loading…

Started

Sep 10, 8:09 PM

Last Updated

1 month, 2 weeks ago

Sep 10, 8:45 PM

Resolved

Sep 11, 3:00 AM

Coordinates

37.7223, -121.9388

Update History

2 observations

CHP : Traffic Collision on I-680 Northbound exiting at Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Sep 10, 8:45 PM

CHP : Traffic Collision on I-680 Northbound exiting at Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Sep 10, 8:15 PM

Source: 511_sfbay · ID 511.org/1547723 First seen Sep 10, 2026 8:15 PM