09/24/2026 | Press release | Distributed by Public on 09/24/2026 17:19
Napa County - Caltrans has planned daytime lane closures with one-lane traffic control on State Route 121(SR 121)/ Monticello Road in Napa County. The lane closures are required to allow crews to safely complete erosion repair activities.
Construction activities continue at two locations:
Location 1: Circle Oaks Drive to Moskowite Corner
Monday, August 31 to Friday, October 16 from 6:00 AM to 6:00 PM
Location 2: Vichy Springs to Wooden Valley Road
Monday, August 31 to Friday, October 16 from 6:00 AM to 6:00 PM
Changeable message signs in the area will be activated to assist motorists. Please be prepared for possible delays and follow all posted signs while crews carry out these important improvements.
All work is weather dependent.
For 24/7 traffic updates, follow 511.org: https://twitter.com/511SFBAY Real-time traffic, click-on Caltrans Quick Map: http://quickmap.dot.ca.gov/