Accident High Severity Resolved

CHP : Traffic Collision on I-680 Southbound entering at Crow Canyon Rd (San Ramon). On Ramp affected. Expect delays.

A high-severity accident was reported on I-680 S near Contra Costa on October 21, 2026 at 2:13 AM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Oct 20, 7:13 PM

Last Updated

6 days, 12 hours ago

Oct 20, 8:30 PM

Resolved

Oct 21, 2:45 AM

Coordinates

37.7754, -121.9745

Update History

3 observations

CHP : Traffic Collision on I-680 Southbound entering at Crow Canyon Rd (San Ramon). On Ramp affected. Expect delays. Oct 20, 8:30 PM

CHP : Traffic Collision on I-680 Southbound entering at Crow Canyon Rd (San Ramon). On Ramp affected. Expect delays. Oct 20, 8:00 PM

CHP : Traffic Collision on I-680 Southbound entering at Crow Canyon Rd (San Ramon). On Ramp affected. Expect delays. Oct 20, 7:15 PM

Source: 511_sfbay · ID 511.org/1566447 First seen Oct 20, 2026 7:15 PM