Accident
Moderate Severity
Active
CHP : Traffic Collision with Injuries on I-680 Southbound south of Alcosta Blvd (San Ramon). Right shoulder affected. Expect delays.
A injury accident was reported on I-680 S near Contra Costa on June 1, 2026 at 2:45 AM.
Last Updated
13 minutes ago
May 31, 8:45 PM
Coordinates
37.7209, -121.9384
Update History
5 observations
CHP : Traffic Collision with Injuries on I-680 Southbound south of Alcosta Blvd (San Ramon). Right shoulder affected. Expect delays.
May 31, 8:00 PM
CHP : Traffic Collision with Injuries on I-680 Southbound south of Alcosta Blvd (San Ramon). Right shoulder affected. Expect delays.
May 31, 7:45 PM
CHP : Traffic Collision with Injuries on I-680 Southbound south of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays.
May 31, 7:30 PM
CHP : Traffic Collision with Injuries on I-680 Southbound south of Alcosta Blvd (San Ramon). Lane affected. Expect delays.
May 31, 7:15 PM
CHP : Traffic Collision with Injuries on I-680 Southbound south of Alcosta Blvd (San Ramon). Lane affected. Expect delays.
May 31, 7:00 PM
Source: 511_sfbay · ID 511.org/1501883
First seen May 31, 2026 7:00 PM