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. CHAPTER VII MISSOURI HEIGHTS ENLARGEMENT PLAN Estimated Costs Construction costs Construction costs of the Missouri Heights Reservoir enlargement plan are estimated at $4,536,000 on the basis of reconnaissance design data and January 1973 prices. The Bureau of Reclamation made the esti- mates for all features, with the exception of those for recreational fa- cilities which were made by the Bureau of Outdoor Recreation. The esti- mates are shown below. Project features Missouri Heights Reservoir enlargement Landis Canal Permanent operating facilities Recreational facilities Total Estimated cost $3,550,000 945,000 30,000 11,000 4,536,000 Operation, maintenance, and replacement costs . Project operation, maintenance, and replacement costs have been es- timated at $14,500 annually on the basis of 1970-72 prices. Approximately $11,000 of this amount would be required for reclamation facilities and the remaining $3,500 for recreational facilities. An emergency reserve fund of $15,000 would be established by the Ba- salt Water Conservancy District to defray unusual operating expenses. Development Pro~ram Development of the Missouri Heights Reservoir plan would require a period of approximately 5 years following authorization. This would in- clude 2 years for advance planning work and 3 years for construction. Benefit-cost Analysis Benefits Irrigation . Benefits from irrigation are estimated at $51,000 annually, includ- ing $41,900 in direct benefits and $9,100 in indirect and public benefits. The benefits were estimated by the farm budget method of analysis as dis- cussed in Chapter III. Adjustments were made in the benefits to reflect the gradual shift of the project developed water supply from irrigation to outdoor residential use over the period of analysis. 58