Since pipelines are buried underground, pipeline companies use line markers to indicate the approximate location of pipelines. The markers are placed where pipelines intersect streets, railroads, rivers and heavily congested areas. Markers indicate the general location of a pipeline, but do not indicate how deep the pipeline is buried, or how many lines are in the area. Pipelines do not necessarily follow a straight course between two markers. Never rely solely on the presence or absence of pipeline markers. Always call 811
or your state’s One Call notification service
before digging. It is a federal crime for any person to willfully deface, damage, remove or destroy any pipeline sign or right-of-way marker required by federal law.