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Show !^ fe|^ fe SiSfi; 1 5. L. Tribune 15. Big Cottonwood Creek ( above), once used almost exclusively for the irrigation of farmlands, is now almost entirely devoted to household uses within the city. This change was wrought through the Exchange Agreements of 1904, 1905 and 1920, under which the City supplies water from Utah Lake for irrigation in exchange for creek water for municipal use. 16. Typical of farmlands dependent upon the lake supply is the cultivated area shown below. CONSTRUCTION OF RESERVOIRS AND DISTRIBUTION FACILITIES From this time on until 1920 very little was done toward the direct acquisition of new water resources. It was, however, a time of reservoir construction, resulting in the conservation of resources already available. For example, at the head of Big Cottonwood the Twin Lakes Reservoir with a capacity of 934 acre feet and the Lake Phoebe- Lake Mary Reservoir with a capacity of 742 acre feet were constructed during 1915 and 1916, and in 1917 the Mt. Dell Reservoir was built to store 955 acre feet of Parley's Creek water which theretofore had been wasted. It was raised to a height of 98 feet in 1025 and by that means its capacity was increased to 3514 acre feet. During this same period distribution facilities were enlarged and improved and small storage and equalizing reservoirs were constructed on City Creek and the " New City Creek High- line" conduit was built to serve the Avenue section of the city and the fast growing northeast section. • L. Clyde Anderson |