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<br />, - <br />.1 <br /> <br />Supply and Power Facilities. Lake McConaughy, formed by <br /> <br />Kingsley Dam, was completed in 1941 on the North Platte <br /> <br />River. The hydraulic fill dam is 5.6 km long, 49 m high, <br /> <br />and 340 m wide at the base. Since the reservoir dam began <br /> <br />filling in 1941, Lake McConaughy's greatest storage was in <br /> <br />July 1971 at 2.4 x 109 m3. Its lowest level was reached in <br /> <br />October 1956 at 469 million <br /> <br />3 <br />" , <br /> <br />Water leaving Lake McConaughy flows down the North Platte <br /> <br />River to the Nebraska Public Power District's Keystone <br /> <br />Diversion Dam. Here water is diverted for power generation <br /> <br />in their system and returns to the South Platte River just <br /> <br />above the confluence of the North and South Platte rivers. <br /> <br />The Central nebraska District's r~orth Platte Diversion Dan <br /> <br />is located just below the confluence of the North and South <br /> <br />Platte Rivers. The dan diverts water released froD Lake <br /> <br />McConaughy and natural flows through the headgates into the <br /> <br />supply canal. <br /> <br />The supply canal extends 121 krn fron the diversion dam to <br /> <br />the Johnson return to the Platte River. It has a capacity <br /> <br /> <br />of 60 n3/s and carries all the water used by CNPPID for <br /> <br />hydroelectric power generation, irrigation, and cooling <br /> <br />at the Canaday steanplant. The supply canal falls about <br /> <br />9.5 cm/kn and develops suff1cient head to supply three <br /> <br />18 MW hydro plants before reaching the Canaday stearnplant <br /> <br />-4- <br />