Accident High Severity Resolved

CHP : Traffic Hazard on US-101 Southbound entering at River Rd (Unincorporated). On Ramp affected. Expect delays.

A high-severity accident was reported on US-101 S near Sonoma on July 31, 2026 at 5:33 AM.

Road

US-101 S

Area

Sonoma

Address

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Started

Jul 30, 10:33 PM

Last Updated

9 hours, 3 minutes ago

Jul 30, 11:00 PM

Resolved

Jul 31, 5:00 AM

Coordinates

38.4966, -122.7611

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound entering at River Rd (Unincorporated). On Ramp affected. Expect delays. Jul 30, 10:45 PM

Source: 511_sfbay · ID 511.org/1528883 First seen Jul 30, 2026 10:45 PM