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Williams completes 190,000-Dth/d Transco system expansion in New Jersey

Williams Cos. Inc. has completed an expansion of its Transcontinental Gas Pipe Line Co. LLC system designed to add 190,000 Dth/d of natural gas transportation capacity.

Williams placed into service a portion of the Rivervale South to Market expansion project on July 1, providing 140,000 Dth/d of capacity. The company started up the remaining 50,000 Dth/d of capacity Sept. 1. The expansion boosted the Transcontinental Gas, or Transco, pipeline's capacity to a total of 17.2 million Dth/d, according to a Sept. 3 news release.

The project, which the developer started building early this year, involves uprating 10.3 miles of existing Transco pipeline, building less than a mile of new pipeline looping and related modifications of existing facilities.

FERC approved the roughly $128 million expansion project in August 2018 and gave the developers permission to begin construction in October 2018. Recently, the commission granted Transco an in-service authorization for the remaining gas pipeline facilities associated with the project, which would accommodate growing gas demand from northeastern customers in New Jersey and New York. (FERC docket CP17-490)

Williams owns and operates more than 30,000 miles of pipelines, including the Transco system, which comprises about 10,000 miles of pipeline with a mainline extending nearly 1,800 miles between south Texas and New York City.