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. Alternatives Evaluated A range of alternatives were considered including 1) don't build the project, 2) do remedial work only to extent that the canal is put back into operation until damage occurs again, 3) construct a new river diversion structure and use the old ditch intake structure, and 4) construct a new river diversion structure and a new ditch intake structure. . ! A subjective evaluation of the alternatives follows: 1, Don't build the project: . If this project were not pursued, the JLRIC would be unable to fill Jackson Lake. This would be an annual loss of approximately 34,000 acre feet of irrigation water. This event, if it occurred, could lead to a major loss of crops under the JLRIC system. The per acre value of farm ground in the JLRIC system could potentially drop significantly. The water supply to make up the lack of Jackson Lake Reservoir would have to come from increased well pumping which would eventually effect water users in a broad reach of the South Platte Basin. Changes to allow increased pumping may not be allowed under current decrees. This alternative is not acceptable to the Company. 2. Do remedial activities as required to put deliveries back into operation: . This alternative would be an immediate fix to the problem. Remedial activities would produce results with varying design life ranging from a few months to a few years. A sand dam would be required and in times of failure, the ditch is out of service resulting in a potential loss of water to the stockholders. Reconstruction of the sand dam can cost several thousand dollars to replace. During this time of failure, JLRIC may be unable to fill their reservoir due to the limited amount of time during which a reservoir can fill. Remedial activities do not fully address the deteriorating condition of the remaining diversion structure, leaving open the possibility of catastrophic failure with no chance that remedial activities will solve the problem. . 3. Completely rebuild the river components of the diversion and continue to use the existing intake gates: Feasibility Study Jackson Lake Reservoir and Irrigation Company Diversion Structure September 1999 6 .