On Oct. 7, a subsidiary of Canadian energy firm Enbridge began construction on a gas pipeline expansion across north-central Tennessee.

Enbridge subsidiary East Tennessee Natural Gas is building the Ridgeline Expansion Project, a 122-mile pipeline parallel to an existing pipeline through Trousdale, Smith, Jackson, Putnam, Overton, Fentress, Morgan, and Roane counties.

The pipeline will supply gas to the Tennessee Valley Authority’s Kingston Plant. The authority is planning on replacing coal-fired electricity generation at the power plant with natural gas-fired generators.