Public WorksRoads


Vince Jacala
District 4 - Oakland
(510) 286-(510) 286-5206
Cal Trans
Department of Transportation


Northbound Highway 121-Napa

Starts Friday, August 15 at 7 p.m.

NAPA COUNTY – The California Department of Transportation (Caltrans) will perform pavement repair work on northbound Highway 121 starting Friday, August 15 at 7 p.m. until Saturday, August 16 at 3 a.m.


To ensure worker and public safety, northbound Highway 121/Silverado Trail will be closed with detours in-effect between Summit Avenue and Lincoln Avenue/Clark Street in the City of Napa. Southbound Highway 121 will remain open.


Detour- Northbound Highway 121 in Napa  


Motorists heading onto northbound Highway 121 between Summit Avenue and Lincoln Avenue/Clark Street will be detoured onto Summit Avenue, then to East Avenue, then onto Clark Street, and back onto northbound Highway 121 from Clark Street. Detour signs will be posted.


Please watch for crews working and allow for extra travel time.


For real-time traffic, click-on Caltrans Quick Maps at: http://quickmap.dot.ca.gov/  

Or follow us on Twitter at: https://twitter.com/CaltransD4


Caltrans appreciates your patience as we work to maintain California’s highways.

The Board of Supervisors and staff of Napa County are dedicated to preserving and sustaining Napa County for present and future generations as a community with generous open space, a thriving agricultural industry and a quality human and natural environment.


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