Call Before You Dig: Why 811 is the Most Important Number You Haven't Called Yet

Call Before You Dig: Why 811 is the Most Important Number You Haven’t Called Yet

We’ve all seen the signs— “Call before you dig” and “Know What’s Below.” But what do they really mean? For those in the U.S., you might know they’re reminders to check for underground utilities before breaking ground, but what exactly lies beneath? What happens if you don’t call? And if you do call, what should you expect?

Whether you’re a DIYer trying to spruce up the front yard or a professional contractor breaking ground on a jobsite, dialing 811 or submitting a request online is a crucial first step before digging.

What is 811?

811 is the national call-before-you-dig service designed to protect you, your community, and critical underground infrastructure. Beneath your feet are miles of essential utilities—gas lines, water pipes, electricity cables, and communication networks. Striking one of these by accident can disrupt service, result in expensive repairs, or even lead to serious injury or death.

When Should You Call 811?

If your project involves any digging—whether it’s putting in a fence post, installing a mailbox, or planting a garden—you need to contact 811 at least a few business days in advance. This allows utility companies enough time to mark the locations of underground lines.

You can also make a request on the 811 center’s website.

What Happens When You Call?

When you dial 811, you’re connected to your state’s call-before-you-dig center, where a representative will guide you through the process. Whether you call or submit an online request, make sure you have a few key details ready:

• The exact address of your dig site (including county and nearest cross street).
• A description of your project, including what you’re doing and why you’re digging.
• The specific area where you plan to break ground.

What Happens Next?

After submitting your request, you’ll receive a ticket number along with details on how long it will take for utility companies to respond. Typically, within a few days, professional locators will arrive to mark any buried utility lines with paint or flags.

On average, 7-8 utility operators are notified per request, ensuring that all necessary precautions are taken. Once all utilities are marked, follow the 18-24-inch safety zone rule—never dig directly on top of or too close to the markers.

Is Calling 811 Really Required?

Yes! In most states, it’s the law! Failing to call before digging can lead to fines, costly damages, and dangerous accidents.

Understanding Utility Markers

Utility markers are color-coded according to standards set by the American Public Works Association (APWA) and the American National Standards Institute (ANSI):

• Red: Electric power lines, cables, and lightning cables
• Yellow: Natural gas, oil, steam, and other flammable materials
• Orange: Communication, alarm, and signal lines
• Blue: Potable water lines
• Purple: Reclaimed water, irrigation, and slurry lines
• Green: Sewers and drain lines
• White: Proposed excavation areas
• Pink: Temporary survey markers or unidentified facilities

Don’t take chances when it comes to digging. A simple call or online request can prevent accidents, protect critical infrastructure, and even save lives. Whether you’re tackling a small backyard project or a major construction job, know what’s below—call before you dig!

Tags: 811 ANSI APWA Safe Digging Utility Safety

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