Great Lakes Transmission Gas Pipeline, Duluth, Minnesota | United States Pipeline Infrastructure

Great Lakes Transmission is a natural gas pipeline facility located at 130 West Superior St, Duluth, Minnesota, United States. The facility is operational and plays a role in the regional natural gas transmission network, connecting supply sources to distribution systems in the Upper Midwest. The pipeline operates under the regulatory oversight of the U.S. Pipeline and Hazardous Materials Safety Administration (PHMSA) and complies with DOT 49 CFR Part 192, which governs gas pipeline safety. The facility's NAICS code 486210 indicates it is a natural gas pipeline transmission system, typically involving high-pressure pipelines designed for long-distance transport. As part of the Great Lakes region's energy grid, this pipeline contributes to reliable natural gas delivery for residential, commercial, and industrial users in Minnesota and surrounding areas. Its location in Duluth, a port city on Lake Superior, underscores the importance of pipeline infrastructure in supporting regional energy security and economic activity.

The pipeline traverses the Duluth area near Lake Superior, a major freshwater resource. Proximity to waterways and populated areas necessitates robust cathodic protection and leak detection systems to prevent environmental incidents. The commodity transported (natural gas) poses risks of methane emissions and combustion hazards, requiring adherence to PHMSA integrity management programs.