Gateway Expansion Project


The Gateway Expansion Project has been designed to provide up to 65,000 dekatherms per day of natural gas transportation service to northeastern consumers — enough natural gas to meet the daily needs of about 300,000 homes.


  • Serve communities. The Gateway Expansion Project allows additional natural gas volumes to be transported to northeastern consumers to heat homes and generate electricity.
  • Reduce emissions. An abundant, reliable supply of natural gas is critical to help reduce carbon emissions and provide the flexibility needed to support a growing renewables component in power generation.
  • Support economic growth. The expansion will ensure sufficient access to reliable, economically-priced natural gas to support continued economic growth in the region

The Gateway Expansion Project has been designed to minimize impacts to landowners and the environment by increasing the use of existing pipeline infrastructure.

The project will require the installation of additional electric horsepower at an existing Transco compressor station in Essex County, N.J., (Station 303) in addition to modifications to an existing Transco meter station in Essex County and the replacement of an existing Transco meter station in Passaic County, N.J.

Station 303 Horsepower Addition
Transco Station 303 is an existing electric motor driven compressor facility in Roseland, N.J. The Gateway Expansion project proposal would require adding a 27,500 horsepower electric motor driven compressor unit to the facility. This proposed horsepower addition will help minimize air emissions at the station and surrounding environment and as a result will not require any federal, state or local air quality permits.

Meter Station Modifications
Meter stations are used to measure the flow of gas from the transmission pipeline to the pipeline customer. As part of this project, Transco would replace components of the existing above-ground metering facility in Paterson, N.J., with new, state-of-the-art equipment and buildings. The majority of this work will be confined to the existing facility footprint. The proposal also includes the installation of a new valve at the existing meter and regulating facility in Roseland, N.J.


November 2017 – FERC filing
December 2018 – FERC issues order approving the project
December 2019 – Project placed into service December 31, 2019


General questions related to the project can be directed to

Media inquiries related to this project can be directed to