Accident Moderate Severity Resolved

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on June 28, 2026 at 7:54 PM.

Road

I-680 S

Area

Contra Costa

Address

Loading…

Started

Jun 28, 12:54 PM

Last Updated

3 months, 4 weeks ago

Jun 28, 1:15 PM

Resolved

Jun 28, 7:30 PM

Coordinates

37.7286, -121.9443

Update History

4 observations

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Jun 28, 1:00 PM

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Jun 28, 12:15 PM

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Jun 28, 12:00 PM

CHP : Traffic Collision on I-680 Southbound north of Alcosta Blvd (San Ramon). Left lane blocked. Expect delays. Jun 28, 11:45 AM

Source: 511_sfbay · ID 511.org/1514383 First seen Jun 28, 2026 11:45 AM