811 – Call Before You Dig

Know what's below. Call 811 before you dig.

What do the colors mean?

The marking guide from the American Public Works Association provides for universal use and understanding of the temporary marking for underground facilities.

White

Proposed Excavation

Red

Power/ Electric

Yellow

Gas, Oil, Steam, Petroleum

Orange

Communications, TV

Blue

Potable Water

Green

Sewer & Drain Lines

Purple

Reclaimed Water, Irrigation

Pink

Temporary Survey

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What is 811?

811 is the national call-before-you-dig phone number. Anyone who plans to dig should call 811 or go to their state 811 center’s website before digging to request that the approximate location of buried utilities be marked with paint or flags so that you don’t unintentionally dig into an underground utility line.

When do I call 811?

You should call 811 or use your state 811 center’s website a few business days before you begin any digging, including common projects like planting trees and shrubs or installing fences and mailboxes. The specific amount of advance notice that you are required to provide varies by state.

What info do I need before calling 811?

You will need to know the address of where you plan to dig, including the county and nearest cross street, as well as the type of project you’re completing and the exact area on the property where you’re planning to dig. Whether you call 811 or make your request online, you’ll need the same info.

After I call 811, what do I do?

You need to wait a few days to allow utilities to respond to your request and ensure that all utilities have indeed responded to your request before breaking ground. Once all utilities have marked their buried lines, you should dig carefully around any utility marks and consider relocating projects that are close to buried utilities.

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811 “Call Before You Dig” was created to provide you with a nationwide, easily accessible resource when you are digging.
Every dig requires a call.

Arboriculture

Tree Trimming/ Line Clearance Kits

Electrical

Telecommunications

Utilities

Know what's below.

Call 811 before you dig.