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<br />1 ,~ <br />'_ _ i <br /> <br />. <br /> <br />"""l r " ~'. <br />". . \.. <br />f#f.. v I <br /> <br />f <br /> <br />Urgen",' of Relief. <br /> <br />In the valleys of the Lower Colorado, gnd e3pecially <br /> <br />the Imp~rial Valley, stor~ge is needed for th~ extension of <br /> <br />irrigation and for safety again.t drouth of the ar'las alread,y <br /> <br />irrigatQd wh.::n th.:: cycle of low years rolls around. <br /> <br />The need is also vital for protoction from floods of <br /> <br />the Colorado which t~reaten the lovcas along the rival' valley <br /> <br />and which ara a constant munace to the Imperial Valley, thr3at- <br /> <br />ening a repetition of the experienco of 1906. Both of these <br /> <br />problems a.re urgent and vital. <br /> <br />,-, The years 1902, 1903, 1915. and 1919 wera years of low <br /> <br />i. <br /> <br />water flow. the first two being shortly after the beginning of <br /> <br />irrigation in the lower valleys arid whQn the arOa irrigated <br /> <br />was so small that no shortage occurred. In the yoar 1915 <br /> <br />irrigation had proc""dod to a substantial degroe. <br /> <br />~ Tho records of tho Imperial Irrigation system sllOw that <br /> <br />for a conSiderable period in 1915 the wat~rs of the Colorado <br /> <br />River were all, or practically all, diverted at tho int~ <br /> <br /> <br />of that canal and a.:pplied'in irrigation of Imparia1 Valley, <br /> <br />with the result that an actual shortage existed there <br /> <br />" <br /> <br />" <br /> <br />part of the time. <br /> <br />The shortage Was not seVere <br /> <br />nor disastrous but it had a value as indicating the <br /> <br />" <br /> <br />. <br />