(HOUSTON, TX) -- Cardinal Pipeline Company, LLC announced Monday that it will expand a key natural gas pipeline in North Carolina.  The Cardinal Pipeline will transport additional natural gas supplies to serve growing markets served by Piedmont Natural Gas Company, Inc. and PSNC from an interconnect with Williams Partners L.P.'s Transco pipeline.

The $39 million Cardinal System Expansion project is scheduled to be placed into service in July 2012.  The expansion has been designed to serve growth on Piedmont's and PSNC Energy's distribution systems, including an expansion on Piedmont's system to serve Progress Energy Carolinas' planned new state-of-the-art gas-fired power generation facility in Wayne County.

Cardinal Pipeline is a 105-mile, 24-inch diameter pipeline that extends from Rockingham County to a point southeast of Raleigh.