Overnight lane closure on SR 121/Monticello Road for Erosion Control work in Napa County

Monday, June 8 through Friday July 24 - 6:00 PM to 6:00 AM

Napa County – Caltrans has scheduled an overnight lane closure (one-lane traffic control) on State Route 121(SR 121)/ Monticello Road in Napa County. This lane closure is required to allow crews to safely complete Erosion Control construction activities.

The construction activities are scheduled to start at two locations: The first location is scheduled to begin Monday, June 8 on SR 121 between Circle Oaks Drive and Moskowite Corner. The second location is scheduled for Thursday, June 11, on SR 121 between Vichy Springs and Wooden Valley Road, located in unincorporated Napa County.

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.

WORK SCHEDULE:
Location 1: Circle Oaks Drive to Moskowite Center
Thursday, June 8 to Friday, July 24 from 6:00 PM to 6:00 AM

Location 2: Vichy Springs to Wooden Valley Road
Thursday, June 11 to Thursday, July 23 from 6:00 PM to 6:00 AM

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.