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EA-1456: Final Environmental Assessment

Cheyenne-Miracle Mile and Ault-Cheyenne Transmission Line Rebuild Project, Loveland, Colorado

Western Area Power Administration (Western) is proposing to upgrade the existing Cheyenne- Miracle Mile (CH-MM) and Ault-Cheyenne (AU-CH) 115 kilovolt (115-kV ) transmission lines to 230-kV. The proposed project consists of rebuilding these transmission lines and making modifications to Western’s existing Miracle Mile, Cheyenne and Ault Substations to accommodate the 230-kV circuits. A new Snowy Range Substation would also be build near Laramie, Wyoming.