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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />.. <br /> <br />CHAPTER VII <br /> <br />PROJECT EVALUATION <br /> <br />This project is proposeo to rehabilitate an existing <br />storage facility for North Poudre Irrigation Company. The <br />majority of water in the North poudre systeM use is for agri- <br />cultural irrigation. The rehabi~itated reservoir is estimated <br />to hold a capacity of from 11,50$ to 13,597 acre feet with <br />seepage losses of 300 acre feet per year. The facility is <br />currently operated at a restricted level which provides for <br />storage from 7,705 to 8,428 acre feet and estimated current <br />seepage losses of 600 acre feet per year. The variation in <br />storage capacity is a result of rhe fact that the gage rod <br />at Fossil Creek is not accurately set in relationship to the <br />outlet. Seepage losses under existing conditions could approach <br />1,460 acre feet per year were the reservoir water surface <br />elevation operated at C.R, 34.0 or higher. <br /> <br />The net difference of water available with the rehabilita- <br />tion project versus without, is an increase of approxiMately <br />5,000 acre feet per year. This additional storage could be <br />appraised at a current market value of $2,000,00 per acre <br />foot for a total project value of $10,000,000.00. A benefit/ <br />cost ratio based on current value and current costs could be <br />calculated as follows: <br /> <br />Value of additional water <br />Cost of additional water <br /> <br />$10,000,000 <br />$ 4 114 313 = 2.43 <br />, , <br /> <br />The future Maintenance of this facility is dependent upon <br />the completion of the rehabilitation project, As the structure <br />deteriorates, reduced levels of operation will be required, <br />Also, the hazard of overtopping frOM a significant flood is <br />not appreciably reduced by lowering the operating level of the <br />reservoir. One would anticipate that the facility would be <br />obsolete and totally inoperable by 2024 or earlier, if re- <br />habilitation is not co~pleted. <br /> <br />The following items are evaluated based on the annual <br />benefits associated with the total facility with the rehabilita- <br />tion project versus the total facility without the rehabilita- <br />tion project. <br /> <br />a. Irriration. The major source of income, from water stored <br />in Fossi Creek Reservoir is from agricultural irrigation. With <br />the rehabilitation project, water available should be approximate- <br />ly 13,597 acre feet for agricultural irrigation. This of course <br /> <br />-19- <br />