Encroachment Permit Brochure
If you are requesting an Encroachment Permit Application, or have questions regarding Encroachment Permits, please contact the Napa County Road Department at 707-944-0196.
Special Event Application
If you are requesting a Special Event Application, or have questions regarding Special Events, please contact the Napa County Road Department at 707-944-0196.
County Maintained Road Inventory
Napa County Road District Map
Napa County Road and Street Standards - 2016
Guidelines for County Road Maintenance Practices that Protect Aquatic Habitat and Salmon Fisheries (14MB)
CalTrans General Information
CalTrans Road Conditions
Napa County Traffic Counts