Accident Moderate Severity Resolved

CHP : Traffic Hazard on US-101 Southbound at River Rd (Unincorporated). Right shoulder affected. Expect delays.

A injury accident was reported on US-101 S near Sonoma on September 20, 2026 at 4:09 AM.

Road

US-101 S

Area

Sonoma

Address

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Started

Sep 19, 9:09 PM

Last Updated

1 month, 1 week ago

Sep 19, 9:15 PM

Resolved

Sep 20, 3:15 AM

Coordinates

38.4966, -122.7611

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound at River Rd (Unincorporated). Right shoulder affected. Expect delays. Sep 19, 9:15 PM

Source: 511_sfbay · ID 511.org/1552037 First seen Sep 19, 2026 9:15 PM