How do you know where pipelines are located?

  • Most pipelines are located underground along right-of-ways.
  • Pipelines use special markers to indicate their approximate locations, and these markers are commonly placed at road and water crossings.
  • Some of the common markers are illustrated below:

    Common Markers
  • Pipeline markers indicate that a buried pipeline is in the immediate vicinity of the marker but does NOT indicate burial depth, diameter, or pressure, which will vary.
  • Warning signs typically associated with the pipelines operated by the Olin Pipeline are illustrated below:

    Warning Sign - Gas Pipeline

    * In case of Emergency dial Dow ES&S

    Warning Sign - Buried Pipeline