Accident High Severity Resolved

CHP : Traffic Collision on CA-121 Northbound north of Mangel Ranch Rd (Unincorporated). Right shoulder affected. Expect delays.

A high-severity accident was reported on CA-121 near Sonoma on August 23, 2026 at 2:08 AM.

Road

CA-121

Area

Sonoma

Address

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Started

Aug 22, 7:08 PM

Last Updated

23 hours, 57 minutes ago

Aug 22, 7:30 PM

Resolved

Aug 23, 1:45 AM

Coordinates

38.1764, -122.4497

Update History

3 observations

CHP : Traffic Collision on CA-121 Northbound north of Mangel Ranch Rd (Unincorporated). Right shoulder affected. Expect delays. Aug 22, 7:30 PM

CHP : Traffic Collision on CA-121 Northbound north of Mangel Ranch Rd (Unincorporated). Right shoulder affected. Expect delays. Aug 22, 7:00 PM

CHP : Traffic Collision on CA-121 Northbound north of Mangel Ranch Rd (Unincorporated). Right shoulder affected. Expect delays. Aug 22, 6:15 PM

Source: 511_sfbay · ID 511.org/1539459 First seen Aug 22, 2026 6:15 PM