Undergrounding and system upgrade projects are typically completed in 12-24 months. System upgrade projects include installing strengthened poles and covered powerlines. Projects in your community may already be in one of the below phases*:
IMPORTANT
PG&E will be conducting wildfire safety work near you. This includes moving some powerlines underground. It could also include system upgrades such as installing strengthened poles and covered powerlines above ground.
In 2025, we plan to complete 47 miles of undergrounding and 15 miles of system upgrades in Napa County.
Through the end of 2024, we completed 5 total miles of undergrounding and 81 total miles of overhead system upgrades.
Data as of 6/30/2025
Upcoming Traffic Controls in Napa County
In your area, you may see PG&E trucks along with certified contractors working to complete important wildfire safety work. Most work will take place during normal business hours Monday through Saturday.
For detailed information about impacted roads in Napa County for the next 2 weeks, please view the construction and road work schedule:
The timing of construction can change depending on several factors, including weather and the schedules of nearby projects. You can also view an interactive map where you can look up your address in relation to scheduled work. Visit pge.com/wildfiresafety-upgrades for more information.
Have questions about these traffic controls? Reach out to your local Outreach Specialist with the contact information below.
Click on the link below to view an interactive map of:
- Undergrounding
- Overhead system upgrades
- Potential traffic impacts
- The status of road restoration
- Other wildfire safety upgrades in your area
Search for an address by entering it into the search bar. Click on the address and a window will open, showing the safety work for that location. You can also click the "Address Lookup" tab to search by address. To search for a city, county or tribe, click the "City / County / Tribe" tab and type in the location’s name. A window will then appear, showing safety work information.
Note: Internet Explorer is not supported for this application.
Napa County printable undergrounding overview map
- Filename
- napa-county-map.pdf
- Size
- 322 KB
- Format
- application/pdf
Angwin undergrounding fact sheet
- Filename
- angwin-undergrounding-fact-sheet.pdf
- Size
- 2 MB
- Format
- application/pdf
What to expect:
- Crews walking your neighborhood to identify and mark potential project routes.
- Survey crews painting and staking.
Watch our video about what to expect for potential undergrounding projects during the scoping and surveying phase. Audio description | Transcript (PDF)
What to expect:
- Crews preparing project sites for inspection.
- PG&E representatives meeting with property owners about easements.
- PG&E representatives performing soil samples and inspecting vegetation.
Watch our video about what to expect during the design phase. Audio description | Transcript (PDF)
What to expect:
- Crews trimming or cutting down trees and shrubs.
- Construction to install new equipment.
- Traffic control measures will be in place to keep you safe.
Depending on the work being done in your area, watch our video about what to expect during system upgrades work or undergrounding work.
Audio description | Transcript (PDF)
Audio description | Transcript (PDF)
What to expect:
- PG&E representatives working to install and energize upgraded powerlines.
- Your power may need to be turned off for a short time to complete this work safely.
View traffic control measures in your area.
What to expect:
- Crews working to restore the area.
- Crews removing any remaining construction equipment or materials.
- The timing of final restoration may change depending on the schedules of nearby projects and weather impacts. We will monitor temporary repairs for safety and return to complete final repairs when temperatures are high enough to install new asphalt safely.
View the status of road restoration in your area.
* Phases 1 through 3 may take 1 to 18 months. Phases 4 and 5 may take 2 to 3 months each. Trimming or cutting down trees and shrubs may continue through the entire project from Phase 3 forward.
| You may see our crews, contractor vehicles and large equipment in the area throughout this process. Crews may need to access your property and will coordinate with you in advance. All personnel are happy to provide photo ID. |
Additional details are provided in our frequently asked questions.
Working on a building, renovation, new service, or service relocation project?
Be sure to let us know by calling 1-877-265-1399
More on outages and safety
Outage preparedness and support
Stay prepared for power outages and get support.
Community Wildfire Safety Program (CWSP)
Find out how PG&E is making our system safer and more reliable.
Contact us
If you are a vendor interested in being added to our list, email undergrounding@pge.com.