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| Transmission OASIS Functions OATT Revisions Interconnection Infrastructure projects | Cheyenne-Miracle Mile and Ault-Cheyenne Transmission Line Rebuild Project, CO and WY, DOE/EA-1456 |
Western is proposing to rebuild the existing Cheyenne-Miracle Mile and Ault-Cheyenne 115-kV transmission lines as 230-kV transmission lines. The transmission lines running 136.4 miles from Cheyenne to Miracle Mile would be rebuilt with wood H-frame poles. However, double circuit single steel poles will be used for 3.4 miles through the city of Cheyenne to Cheyenne Substation. Western is also proposing to rebuild the Ault-Cheyenne 115-kV transmission line with 230-kV/115-kV double circuit single poles for 32 miles and consolidate it with three miles of the Archer-Ault line. Project Updates:
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