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<br />o <br />N" <br />~~ <br />1'- <br />..... <br />.. . <br /> <br />.- <br /> <br />- <br /> <br />. <br /> <br />'-" <br /> <br />. <br /> <br />-' <br /> <br />. <br /> <br />. <br /> <br />, <br /> <br />underground across a watershed to collect 1n . stream <br /> <br />channel, lake or other body of wat.r. Space b~1ld1n9 <br /> <br />rel...eB' releases from a r.servoir made with the purpose <br /> <br />of providing .torage epace 1n the r..ervo1r for future inflow . <br /> <br />Stora<]e space. empty space in a r..ervoir available for <br /> <br />storing future inflows. Sustained flow.. flows that <br /> <br />continue tor at least .everal daY8 at a time. Th.re will be <br /> <br />a ret.rence to the Water Re80urce Council on some of our <br /> <br />elide. and that Council i. a group of high level government <br /> <br />officials Charged with the responsibility of effectuating <br /> <br />the national policy on water resource.. <br /> <br />To begin our di.cu..ion on the Hoover Dam flood <br /> <br />control study, We have to go back nearly a half century to <br /> <br />i: the periOd before Hoover Dam was built. As illustrated by <br /> <br />this slide, the Lower Colorado River u.ually ran high in <br />,I <br />the late spring and early summ.r. 'ed by rapidly melting <br /> <br />snow, the River frequently swelled to a torr.nt that swept <br /> <br />over its bAnk. for mil.. around. During th1a time the <br /> <br />people along the River held a real respect for the de.truotlv <br /> <br />power of the Colorado. Followinq the.e hlqh-water period., <br /> <br /> <br />the flow often ran only one thousand (1,000) to two thou.and <br /> <br />(2,000) cubic-f.et-per-second. Faced with constantly <br /> <br />reoccurring' byele. of flood and drou'Iht, the people of the <br /> <br />southwest appealed to the qovernment for help and on <br /> <br />D$celllber 21, 1928 the Boulder Canyon Project Act w.. p....d. <br />