What Do Different Utility Flag Colors Mean? | GPRS
Markings and Colors | Call JULIE Before You Dig
Call Before You Dig | Jackson Energy Authority
What do the Utility Marking Colors Mean - Safe Site Utility Locating Services
Colorful Language: Decoding Utility Markings Spray-Painted on City Streets - 99% Invisible
Huntsville Utilities on X: "KNOW THE CODE! You've probably noticed markings or flags on the ground prior to an excavation. The colors aren't random. Each one designates a specific type of underground