Iroquois Gas Transmission System

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The Iroquois Gas Transmission System is a limited partnership of four U.S. and Canadian energy companies or limited partnerships. TC PipeLines, LP, owns a 49.3 percent interest. Of the remainder, 0.7 percent is held by a subsidiary of TC Energy and 50 percent is owned by affiliates of Dominion Resources, Inc.

The system includes a 416-mile interstate natural gas pipeline that extends from the U.S.-Canadian border at Waddington, New York, onward through New York State and western Connecticut, finally reaching its end point in the Bronx, New York.

The system began operations in 1992 and to this day fulfills its early promise of delivering a supply of safe, reliable natural gas to families and businesses in the many towns, cities and regions it passes through.

Quick Asset Facts:

  • Commenced Operations: 1992
  • Originates Near: Waddington, N.Y.
  • Terminates Near: Hunts Point, Bronx, N.Y.
  • Length (miles): 416
  • Number of Compressor Stations: Seven
  • Number of Active Physical Receipt / Delivery Points: 20
  • Installed Horsepower: 115,900
  • Design Capacity (Bcf/d): 1.5


TC Energy Corporation

In the field

Our general partner, TC PipeLines GP, Inc., is wholly-owned by TC Energy Corporation (TC Energy), one of the largest energy infrastructure companies in North America

Ownership Structure

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