Tennessee Gas Pipeline Co. LLC (TGP) has filed an application with FERC to construct its Connecticut Expansion Project, which is designed to provide more natural gas in the Northeast through upgrading its existing delivery system in Connecticut, Massachusetts and New York.

According to records filed with the Federal Energy Regulatory Commission, TGP, a subsidiary of Kinder Morgan Energy Partners LP, filed an application for a certificate of public convenience and necessity on July 31 [Docket No. CP14-529].

The project calls for construction of two sections of 36-inch diameter looping pipeline totaling 1.35 miles in Albany County, NY, and 3.81 miles in Berkshire and Hampden counties, MA, and one section of 24-inch diameter looping pipeline totaling 8.1 miles in Massachusetts and Hartford County, CT. Minor modifications would also be made to TGP’s existing Agawam Compressor Station in Massachusetts.

The filing said the project would provide an additional 72.1 MMcf/d of incremental firm transportation capacity to TGP’s 200 Line and 300 Line pipeline systems. Kinder Morgan said project would cost $85.7 million.

In a separate note to FERC on Thursday, TGP said it was submitting supplemental information for its application. Specifically, the company was providing regulators with hydraulic flow models that it used to develop the project.

FERC now has 90 days to either complete an environmental assessment (EA) for the project or issue a notice of schedule for environmental review. If the latter is issued, the agency will provide an estimated completion date for of a final environmental impact statement (FEIS) or EA on the project. The deadline for public comments is 5 p.m. ET, Sept. 4.

TGP launched an open season for the project last year, and secured long-term agreements with Connecticut Natural Gas Corp., Yankee Gas Services Co. and Southern Connecticut Gas Co. (see Daily GPI, July 18, 2013).