California Department of Transportation

06/12/2026 | Press release | Distributed by Public on 06/12/2026 15:53

Update: Daytime lane closures on SR 121/Monticello Road for Erosion Repairs in Napa County

Update: Daytime lane closures on SR 121/Monticello Road for Erosion Repairs in Napa County

Published: Jun 12, 2026

Monday, June 15 through Wednesday July 22 - 6:00 AM to 6:00 PM

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, June 15 to Wednesday, July 22 from 6:00 AM to 6:00 PM

Location 2: Vichy Springs to Wooden Valley Road
Wednesday, June 17 to Tuesday, July 21 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, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.

California Department of Transportation published this content on June 12, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on June 12, 2026 at 21:53 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]