The route goes through the towns of Bethel (the location of Plumtree Substation), Redding, Wilton and Norwalk. The project uses a combination of overhead and underground technologies in constructing the new 345-kV line and modifying portions of the existing 115-kV lines. The new 345-kV line will include 8.6 miles of new overhead construction and 11.8 miles of 345-kV underground cables. The company will utilize 345-kV High Pressure, Fluid-Filled (HPFF) cable systems for the majority (approximately 9.7 miles of the 11.8 miles) of the underground portion of the route of the new 345-kV line, and 2.1 miles of 345-kV XLPE cables for the first portion of the route south of Plumtree Substation. The modifications to existing 115-kV lines include overhead reconstruction of 1.8 miles of these lines on an expanded right-of-way (“ROW”) to accommodate the new overhead 345-kV facilities, as well as relocation of approximately 7.8 miles of existing 115-kV line segments underground, primarily in public roads.