Accident High Severity Resolved

CHP : Traffic Hazard on CA-1 Southbound south of Gravenstein Hwy (Valley Ford). Lane blocked. Expect delays.

A high-severity accident was reported on CA-1 S near Sonoma on September 8, 2026 at 5:27 PM.

Road

CA-1 S

Area

Sonoma

Address

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Started

Sep 8, 10:27 AM

Last Updated

1 month, 2 weeks ago

Sep 8, 12:00 PM

Resolved

Sep 8, 6:15 PM

Coordinates

38.4370, -123.1047

Update History

3 observations

CHP : Traffic Hazard on CA-1 Southbound south of Gravenstein Hwy (Valley Ford). Lane blocked. Expect delays. Sep 8, 11:45 AM

CHP : Traffic Hazard on CA-1 Southbound south of Gravenstein Hwy (Valley Ford). Lane blocked. Expect delays. Sep 8, 11:15 AM

CHP : Traffic Hazard on CA-1 Southbound south of Gravenstein Hwy (Valley Ford). Lane blocked. Expect delays. Sep 8, 10:30 AM

Source: 511_sfbay · ID 511.org/1546364 First seen Sep 8, 2026 10:30 AM