A federal agency has approved construction of a project that will supply natural gas to to the Cameron LNG export facility in southwest Louisiana.

The announcement of the Federal Energy Regulatory Commission approval was made by Columbia Pipeline Group Inc. and Columbia Pipeline Partners LP.

Their subsidiary, Columbia Gulf Transmission LLC, will supply the Appalachian natural gas to the facility.

The Cameron Access Project includes improvements to Columbia Gulf’s existing pipeline system, as well as ancillary facilities, a new compressor station near Lake Arthur, and the installation of an approximately 26-mile pipeline in Cameron Parish that provides direct access to the Cameron LNG export facility.

The project involves an investment of about $310 million. Construction is expected to begin in spring 2016, with service starting during first-quarter 2018.