Laserfiche WebLink
<br />,~ <br />C\J <br />D:l <br />'oJ Divice Creek will discharge into :East Willow Creek and thence into <br /> <br />the reservoir. This feeder canal can be operated frOD about May <br /> <br />10 through the spring flood until the water is needed for direct <br /> <br />supply of project lands. <br /> <br />An earth fill dam of 135 feet maximum height, 1,250 feet <br /> <br />long across Middle Willow Creek and a similar one 58 feet in maxinum <br /> <br />height, 600 feet long across West Willow Creek will store water to <br /> <br />a maximum depth of III feet. Water will be released through an outlet <br /> <br />tunnel down Middle Willow Creek, a spill~y being provided to West <br /> <br />Willow Creek. Water diverted frcm East Willow Creek will enter the <br /> <br />reservoir in a concrete chute protecting the soft materials composing <br /> <br />the walls of the reservoir basin. <br /> <br />At present irrigation is started as soon as, or even before, <br /> <br />growth starts, because the spring flood comes early on West Divide <br /> <br />Creek and all water possible Dust be stored in the scil to offset <br /> <br />later deficiency of supply. The peak, and the rnxinum monthly <br /> <br />discharge, of the spring flood have occurred in April, usually <br /> <br />occur in May and have never fallen in June. After the abrupt end of <br /> <br />the flood peak, the final phase of the flood discharge usually <br /> <br />diminishes slowly until about the end of June. This reduced runoff <br /> <br />bec8IDes inadequate for irrigation before the end of the flood, the <br /> <br />average date of such deficiency for the period 1921 to 1937 being <br /> <br />June 10. <br /> <br />When water is being stored in Haystack Reservoir it seems <br /> <br />probable that flow originating below the reservoir and its feeder <br /> <br />C <br />