Deciphering the Language of Utility Markings: Understanding 811 Markings

Deciphering the Language of Utility Markings: Understanding 811 Markings

Have you ever seen strange markings on the ground or sidewalk and wondered what they could possibly mean? Chances are, they’re utility markings, used to designate underground utility lines. Understanding these markings can not only help prevent accidents and damage but can also save time and money. In this article, we’ll dive into the world of utility markings, specifically the 811 markings, and explore what they indicate.

What Are 811 Markings?

811 markings are part of the “Call Before You Dig” safety program, which is designed to prevent damage to utility lines during excavation. When someone plans to dig in a particular area, they must contact their state’s “One-Call” center, which will then notify any utilities that may be impacted by the excavation. The utilities will then send out technicians to mark the location of their underground lines with paint or flags, indicating the approximate location of the lines.

What Do the Different 811 Colors Mean?

Each color used in 811 markings designates a specific type of utility line. Here’s a breakdown of what the different colors mean:

– Red: electric power lines, cables, conduit, and lighting cables

– Yellow: gas, oil, steam, petroleum, or gaseous materials

– Orange: communication, alarm, or signal lines, cables, or conduit

– Blue: drinking water

– Green: sewer and drain lines

– Purple: reclaimed water, irrigation, and slurry lines

– Pink: temporary marking of surveyors’ lines and proposed excavation limits

What Do the 811 Symbols Mean?

In addition to color, 811 markings also include symbols, which provide more information about the utility line. Here are some common symbols and their meanings:

– Circle with an X: the marking indicates the exact location of the utility line.

– Circle: designates where a utility pole or manhole is located.

– Arrow: indicates the direction of the utility line.

– T: shows a branching point in the utility line.

– Dashed lines: indicate the length and width of the utility line.

Why You Should Care About 811 Markings

Understanding 811 markings is crucial for anyone who plans on excavating or digging. Failure to properly identify underground utility lines can result in damage, injury, and even death. Additionally, damaging a utility line can result in costly fines and repairs. Knowing what the different colors and symbols mean can help prevent accidents and minimize the risk of damage to utility lines.

Conclusion

In short, 811 markings are an essential part of the “Call Before You Dig” safety program. Understanding the colors and symbols used in these markings can not only help prevent accidents and damage, but also save time and money in the long run. Remember to always contact your state’s “One-Call” center before digging, and know what the different colors and symbols mean before starting any excavation project.