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Dams proposed upstream of Grand Canyon NP

The Federal Energy Regulatory Commission on Monday is expected to rule on a company's request to pursue a permit to build two hydroelectric dams on the Little Colorado River not far upstream from the main Colorado River as it flows into Grand Canyon National Park.

The plan envisioned by Pumped Hydro Storage, LLC, of Phoenix, is to construct one dam rising 240 feet above the Little Colorado and another 140 feet high. The proposed Navajo National Salt Trail Canyon Pumped Storage Project would also include six 250-megawatt, turbine-generator units, for a total installed capacity of 1,500 megawatts, a 20-mile-long, 500-kilovolt transmission line from the powerhouse to the existing Moenkopi switchyard, and related facilities.

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