Great Lakes Gas Transmission Company GLGT Pipeline

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Gas Pipelines in USA

Transcanada Gas Pipelines

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Summary Information

  • Source: Emerson
  • Destination: St. Clair
  • Ownership: Transcanada
  • Website:
  • Length: 3,404 kilometres (2,115 miles)
  • Capacity: 2.2 billion cubic feet per day
  • Status: Operating


  • Great Lakes Gas Transmission Limited Partnership transports over 2.2 billion cubic feet of pipeline quality natural gas per day through 2,115 miles of dual, high-pressure pipelines.
  • It extends from the Minnesota-Manitoba border at Emerson to the Michigan-Ontario border at St. Clair.
  • It is supplied by the Transcanada Canadian Mainline Gas Pipeline and interconnects with the ANR Pipeline Company in Wisconsin
  • Interconnection with the Dawn Natural Gas Hub


  • 1967 - Great Lakes pipeline begins operations
  • 1996 - St Clair Looping & Security Loop Project Phase I completed
  • 1998 - System Wide Expansion & Security Loop Project Phase II completed
  • 2000 - Security Loop Project Phase III completed

Other Information

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  1. [ ]
  2. EIA Natural Gas Pipeline Projects

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