811 Before You Dig
Call 811 or use your state 811 center's website a few business days before any digging, including fence posts, decks, trees and mailboxes. The service is free, and the utilities mark their buried lines with paint or flags. This page lists every state's 811 center.
Jump to
What you can look up here
- RoadsFind the road authority for plowing, maintenance, and driveway permits.
About this resource
- Provided by
- Common Ground Alliance (official)
- Covers
- United States
- Link status
- Opened normally at the last check
- Link checked
- Oct 18, 2026
- Web address
- https://811beforeyoudig.com/811-in-your-state/
Checked 2026-10-03: https://811beforeyoudig.com/ says 811 is the free national before-you-dig service and to contact 811 a few business days before digging, including fences and mailboxes.