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<br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />PROJECT SUMMARY <br /> <br />The current Highland Lateral and Farmers Extension Irrigation Ditch is earthen, <br /> <br /> <br />It was built in the late 1800's when sophisticated hydraulic and agricultural <br /> <br /> <br />techniques had not been developed. At that time, farmers were grateful to receive <br /> <br />a steady source of water for irrigation purposes and thought little of the water <br /> <br />they lost to seepage. In the face of rising prices of water, the demand put on <br /> <br />the farming community by an increasing population, the loss of suitable farming <br /> <br />acreage due to expanding developments, and increased competition for the rights <br /> <br />and use of water by farmers and cities alike; it had become economically advan- <br /> <br /> <br />tageous to rehabilitate irrigation ditches to reduce delivery times and water <br /> <br /> <br />losses. We have prepared this report to evaluate the present condition of the <br /> <br /> <br />Highland Lateral and Farmers Irrigation Ditch, determine whether rehabilitation <br /> <br />will substantially improve the condition and usefulness of the ditch, and present <br /> <br /> <br />recommendations for an orderly process of reconstruction. <br /> <br />After a detailed evaluation of the current ditch condition, we have concluded that <br /> <br />rehabilitation of the ditch is necessary. We have concluded that concrete lining <br /> <br />the ditch is the best rehabilitation alternative based on present and future needs <br /> <br /> <br />and conditions, There are certain sections of the ditch in which we have recom- <br /> <br /> <br />mended that reinforced concrete pipe be installed, All of our recommendations <br /> <br /> <br />are made in the absence of a complete drainage and soils report. Therefore, site <br /> <br />specific problems will have to be addressed during the design of each section or <br /> <br />in a separate report. Construction costs have been estimated for all recommended <br /> <br /> <br />improvements and are presented herein. <br /> <br />vi <br />