Construction is underway on the underground portion of American Transmission Company’s Western Milwaukee County Electric Reliability Project. The project involves construction of two sets of 138-kV lines, each 2 mi long, to connect a new We Energies substation to the transmission grid.
The two separate lines are needed to assure redundancy to the Milwaukee Regional Medical Center, which operates two Level 1 trauma centers. Although construction was not scheduled to start until next year, ATC took advantage of the opportunity to begin the underground portion ─about 1,250 ft ─ to coincide with underground road work being performed by the Wisconsin Department of Transportation.