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<br />main dam. A bitwninous-surfaced roadway, 21 feet wide, extends along <br />lhe crest of the north wing dam, main dam, and south wing dam. The <br />overall length of the structure is 2.6 miles. Detailed project data are <br />shown below. <br />DAM <br />Totallengtb, feet. <br />Maximum height above streambed, feet . <br />Widtb of roadway on dam, feet. <br /> <br />13,945 <br />118 <br />21 <br /> <br />SPILLWAY <br />Total length, including piers, feet . <br />Crest gates, 30' x 64' <br />Discbarge capacity, cubic feet per second. <br /> <br />1,174 <br />16 <br />. . . 639,200 <br /> <br />OUTLET WORKS <br />Sluicing conduits, 6' x 71/2' . <br />Regulating conduits, 4' x 4' . <br /> <br />4 <br />2 <br /> <br />RESERVOIR <br />Capacity, acre,feet. . . . . . .621,326 <br />Flood control storage, acre-feet. . . . .270,3'75 <br />Conservation (irrigation) and recreation, storage, acre-feet. ....350,951 <br />Water surface at spillway crest, acres. 8,960 <br />Water surface at top of conservation pool, acres. 11,655 <br />Water surface at top of flood cOlitrol pool, acres. 17,630 <br />Drainage area, square miles ... ... . . . . . . . . . . . . . . . . . . . .. . . . . . . . .. 18,915 <br />A 'h-mile of the historic Santa Fe Trail north of the reservoir has <br />been enclosed by a fence. An appropriate sign perpetuates this bit of <br />Americana for posterity. <br />7. Cooperative Studies and Activities: <br />(a) Article VIII G (I) of Arkansas River Compact requires the <br />Administration to cooperate with the Chief Official of each of <br />the states of Colorado and Kansas cbarged with the ad- <br />ministration of water rights in their respective States, and with <br />the Federal agencies in systematically determining and <br />correlating the facts pertaining to the flow and diversion of the <br />water of the Arkansas River and to the operation and siltation of <br />John Martin Reservoir and other related structures. Article VIII <br />G (2) requests the Director of the United States Geological <br />Survey, the Commissioner of the United States Bureau of <br />Reclamation, and the Chief of the Engineers, United States <br />Army, to cooperate and collaborate with the Administration and <br />with appropriate. Stale officials in such determinations and <br />correlations of stream flow and related data. Under the By- <br />Laws of the Administration, these cooperative studies and ac- <br />tivities are assigned to the Engineering Committee of the <br />Administration. <br />(b) During the year covered by this report the Administration has <br />received excellent cooperation from all agencies referred to in <br />the foregoing provisions of the Compact. The United States <br />Geological Survey bas continued the operation of the compact <br /> <br />8 <br />