United States of America Federal Power Commission Decision - Arizona Power Authority, Project No. 2248

Document: United States of America Federal Power Commission, Decision, Arizona Power Authority, Projection No. 2248, Issued September 10, 1962, page 38-38- ADDITINAL FINDINGS AND CONCLUSIONS Upon consideration of the entire record herein, the evidence adduced and the briefs filed, it is found and concluded, in addition to the findings and conclusions heretofore set out, that: (1) Arizona Power Authority, and agency of the State of Arizona (Applicant), filed application under the Federal Power Act (the Act) for a license authorizing the construction, operation, and maintenance of hydroelectric project works at the Marble Canyon site on the Colorado River within the State of Arizona, designated the Marble Canyon development, Project No. 2248. (2) Applicant is a municipality as defined in Section 3(7) of the Act. (3) The proposed Marble Canyon development would be located in and along a navigable water of the United States. (4) There is no competing application before the Commission for a license for a development in the Marble Canyon reach of the Colorado River. (5) Applicant has submitted satisfactory evidence of compliance with the laws of the State of Arizona insofar as necessary for the purpose of a license under the Federal Power Act. Public notice of the application has been given as required by the Act. (6) The Marble Canyon dam of Project No. 2248 would be located at a point 39.5 river miles below the U. S. Geolgical Survey gauging station at Lee Ferry on the Colorado River, Arizona, and about 12.5 miles upstream from the upstream boundary of Grand Canyon National Park. (7) The reservoir created by the marble Canyon dam will extend upstream about 55 miles to, and may encroach on, the tailwater of the Glen Canyon project of the U.S. Bureau of Reclamation. (8) The Marble Canyon project proposed by Applicant would include a concrete arch dam with maximum height of about 400 feet creating a reservoir about 55 miles long with its normal water surface at elevation 3130 feet, providing a gross storage capacity of about 480,000 acre-feet, a powerhouse installation of 6 turbines each of 117,500 horsepower at 285 feet net head, totaling 705,000 horsepower and 6 generators each of 85,000 kilowatts at unity power factor, totaling 510,000 kilowatts; and other appurtenant works and structures including transmission facilities.Epson Perfection 4870 Photo, 400 dpi, 8 bit, 1,252,175 byte