What Do All The Marker Colours Mean?

Posted on
May 3, 2018 by

You’ve seen them out there, stakes lined up in a row, marching along the ditch or a field.  Or, sometimes, spray paint decorating the street or sidewalk, a variety of colours contrasting against the dull grey pavement.

What do they mean?  Why are they there?

When companies need to do maintenance to the road, sidewalk, power lines, pipelines or sewage lines, they need to have a Line Locating Technician to come out and locate, then mark, where all the potential buried lines are.

Once located and marked, companies Nation wide need to understand what they are, and thats where the standard underground utility colour code comes in.

Image of Colour Code for construction safety and oilfield safety.

Using universal colour codes ensures that everyone knows what is buried there, no matter the province, location, or client.

Locate markings inside a grocery store

Cows Around Underground Line Stake

When working in fields of cows, who are attracted to the stakes and often knock them down, shorter stakes are used

Stakes Marking Various Underground Lines On Contruction Site

Flagging can be tied to the stakes in order to differentiate between various underground lines of the same type


3-D Line Locating Ltd is a privately owned Buried Pipeline and Utility Locating, Hydrovac Services and Ground Disturbance Management company. For over 20 years, we have been at the forefront of the Damage Prevention industry in Western Canada. Although the industry has changed significantly over the last 20 years, we have been very fortunate to have been at the leading edge of the evolution and still maintain the highest levels of quality, accuracy, consistency and customer satisfaction in our industry.

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