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Show 34 ONE HUNDRED YEARS OF WATER DEVELOPMENT ' « ! * •• • JnwfltL. ~ "^ w • alwV'SM* sflfsi* -* » .^ -• . •"• 31 . ^^^^ r "^^ i i S. L. Tribune 52. Effect of 1934 drouth on the mountain steams. Compare this photograph of the Big Cottonwood Creek bed with the picture of Big Cottonwood Creek on page 12. of course, planning must be based upon the knowledge of the material and its limitations with which one has to plan. Plans must be made on the assumption of minimums and not as has been done, upon maximums or upon averages. NINTEEN HUNDRED THIRTY FOUR The climax of the dry cycle came in 1934, so far the worst of record. Utah Lake receded to a lower level than ever before, so far that a large part of the comparatively little water remaining was inaccessible to the existing facilities. A new pumping plant and canal had to be and was quickly constructed. But the water shortage was not confined to the Utah Lake supply; it very seriously affected the purely municipal supply as well. Mountain supplies which in ordinary years were available from the exchange streams had to be used toward the satisfaction of exchange obligations, and, instead of supplying them from stream flow, as usual during the early part of the irrigation season, Utah Lake water had to be delivered at the beginning. Water restrictions were imposed. It was a year of real crisis. THE EMERGENCY WELL PROGRAM The 1934 crisis was so acute that the ordinary methods, the doing this |