Accident Resolved

CHP : Residual delays on CA-12 Eastbound and Westbound west of Napa Rd (Sonoma). All lanes open. Expect delays.

A accident was reported on CA-12 W near Sonoma on August 3, 2026 at 1:11 PM.

Road

CA-12 W

Area

Sonoma

Address

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Started

Aug 3, 6:11 AM

Last Updated

19 hours, 18 minutes ago

Aug 3, 9:00 AM

Resolved

Aug 3, 3:15 PM

Coordinates

38.2534, -122.3936

Update History

5 observations

CHP : Residual delays on CA-12 Eastbound and Westbound west of Napa Rd (Sonoma). All lanes open. Expect delays. Aug 3, 9:00 AM

CHP : Traffic Collision with Injuries and Overturned tractor trailer on CA-12 Eastbound and Westbound between Napa Rd (Sonoma) and Ramal Rd (Unincorporated). All lanes blocked. Avoid the area. Aug 3, 8:15 AM

CHP : Traffic Collision with Injuries and Overturned tractor trailer on CA-12 Eastbound and Westbound between Napa Rd (Sonoma) and Ramal Rd (Unincorporated). All lanes blocked. Avoid the area. Aug 3, 7:15 AM

CHP : Traffic Collision with Injuries and Overturned tractor trailer on CA-12 Eastbound and Westbound between Napa Rd (Sonoma) and Ramal Rd (Unincorporated). All lanes blocked. Avoid the area. Aug 3, 6:30 AM

CHP : Traffic Collision with Injuries and Overturned tractor trailer on CA-12 Westbound west of CA-29 (Unincorporated). Lanes blocked. Expect delays. Aug 3, 6:15 AM

Source: 511_sfbay · ID 511.org/1530131 First seen Aug 3, 2026 6:15 AM