Pipeline Emergency: Call 1-888-876-0036

How to Identify Pipelines

Pipeline markers are located along the pipeline right-of-way, at road and railroad crossings and at all above-ground facilities. They’re easy to spot—just look for the black, yellow and white signs.

The line markers identify the general location of the pipeline, the specific products transported, the operator’s name and the emergency contact number.

In addition, the federal government provides access to maps that show the approximate location of transmission pipelines in your community. To view maps, visit the online National Pipeline Mapping System.

Call Before You Dig

Pipeline markers do not identify the exact location or depth of the pipeline.

Always call 811 to have pipelines and underground utilities near your job site identified and marked before starting your project. Once lines are located, respect the marks and dig carefully.

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