Gulf Trace Expansion Project

Williams has developed an expansion of its Transco pipeline called the Gulf Trace Expansion Project. The project is designed to expand the existing pipeline system in order to deliver gas to the Sabine Pass Liquefaction Facility 2 in Cameron Parish, Louisiana.


The project includes the installation of eight miles of new 36-inch concrete-coated pipe from the existing Transco pipeline in St. Helena Parish to the Sabine Pass Liquefaction Facility meter station. The project would also include two compressor stations, and modifications to the existing Transco mainline.

Compression Facilities

  • Construct a new compressor station in Calcasieu Parish.
  • Construct a compressor station addition and related auxiliary equipment at Transco’s existing Station 44 in Cameron Parish.

Meter Stations

  • Install a meter station at the Sabine Pass Liquefaction facility.
  • Install a meter station at the Texas Gas Station at Mamou, LA.

Mainline Modifications

Mainline reverse gas flow modifications will be performed at existing Transco’s Stations 45, 50 and 60. Additional equipment will be installed to accommodate the changes being made to the mainline to allow for the bi-directional flow of gas.

Regulatory Process

Interstate natural gas pipelines are regulated by the Federal Energy Regulatory Commission (FERC). As such, FERC requires pipeline operators to obtain a federal Certificate of Public Convenience and Necessity, in addition to various state permits, before any pipeline facilities can be built.

Williams submitted an application with the FERC for the Gulf Trace project in December 2014 (docket number CP15-29). FERC completed its environmental review of the project and issued an Order of Public Convenience and Necessity on Oct. 21, 2015 (view news release). All documents and correspondence submitted to or issued by either the company or FERC regarding the proposed Gulf Trace Expansion Project can be accessed by referencing the docket number on the FERC website.

Proposed Schedule

  • December 2014 – Filed 7(c) Application with FERC
  • October 2015 — FERC Approval
  • 1st Quarter 2016 – Proposed Compressor Station construction starts
  • 2nd Quarter 2016 – Proposed Pipeline Construction Starts
  • 1st Quarter 2017 – Proposed In-Service

Contact Us

If you have any questions, feel free to contact us anytime.

Phone: 713-215-2264