Skip to Main Content
Loading
Close
Loading
Create a Website Account
- Manage notification subscriptions, save form progress and more.
Website Sign In
Roads
Airport
Animal Shelter
Conservation
Flood & Water Resources
Other Services
Home
Departments
Public Works
Flood & Water Resources
Stormwater Program
Development
Encroachment Permits
Encroachment Permits
Contact Information
American Canyon: 707-647-4521
City of Napa: 707-257-9438
Yountville: 707-944-8851
St. Helena: 707-968-2658
Calistoga: 707-942-2828
Napa County (Unincorporated Areas): 707-253-4351
State General Construction Permit
Encroachment Permits
Construction Site Runoff Control
Post-Construction Runoff Management
Arrow Left
Arrow Right
[]
Slideshow Left Arrow
Slideshow Right Arrow