Pipeline Maps 

The National Pipeline Mapping System’s (NPMS) Public Viewer allows you to view and print maps of hazardous liquid & gas transmission pipelines.

Maps generated by NPMS show the approximate location of transmission pipelines in relation to specific addresses, major roads, zip codes, cities and counties. Maps do not allow you to identify the exact location of pipelines and should not be used as a substitute for calling 811 prior to agricultural excavation or digging activities.

Watch a tutorial video for how to use NPMS.

You can also use NPMS to access contact information for transmission pipeline operators in your community. The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration (PHMSA) manages NPMS.

Currently, NPMS does not include gathering or distribution pipelines.  Some state regulatory agencies also provide maps showing the general location of pipelines in their state.