Williams Partners LP and its wholly owned subsidiary Transcontinental Gas Pipe Line Co. LLC received Federal Energy Regulatory Commission (FERC) approval for its application to construct and operate Transco’s Mobile Bay South III Expansion project. The project is designed to provide 225,000 dekatherms per day of firm transportation capacity on the Transco Mobile Bay Lateral from the Station 85 4A Pooling Point and other Station 85 receipt points in Choctaw County, Ala., to interconnections with Florida Gas Transmission and Bay Gas Storage in Mobile County, Ala.

The expansion would involve adding compression at Transco Compressor Station 85 and updating existing facilities in Washington and Mobile counties, Ala. The cost of the project is estimated at $50 million. The project is expected to begin service in the spring of 2015, with construction beginning in May 2014.