Three sites (A, B & C) are being considered for flood control dams. The three construction costs are $10 million, $12 million and $20 million; and the annual maintenance costs are expected to be $15,000, $20,000 and $23,000 respectively for sites A, B and C. In addition, a $75,000 refurbishing expenditure will be required every 10 years at each site. Every year without the dams, $2 million in flood damage occurs. It is projected that dam A, by itself, would reduce the annual damage to $1.6 million. Similarly, Dam B would reduce the damage to $1.2 million, and Dam C to $0.77 million. Since the dams would be built on different branches of a large river, any one or all of the dams could be constructed, and the flood damage reductions would be additive. The planning interest rate is 5% per year, and the dams would be considered permanent. One dam is to be constructed converting the all quantities to annual worth values do incremental standard benefit/cost analysis to choose the best damn. Three sites (A, B & C) are being considered for flood control dams. The three construction costs are $10 million, $12 million and $20 million; and the annual maintenance costs are expected to be $15,000, $20,000 and $23,000 respectively for sites A, B and C. In addition, a $75,000 refurbishing expenditure will be required every 10 years at each site. Every year without the dams, $2 million in flood damage occurs. It is projected that dam A, by itself, would reduce the annual damage to $1.6 million. Similarly, Dam B would reduce the damage to $1.2 million, and Dam C to $0.77 million. Since the dams would be built on different branches of a large river, any one or all of the dams could be constructed, and the flood damage reductions would be additive. The planning interest rate is 5% per year, and the dams would be considered permanent. One dam is to be constructed converting the all quantities to annual worth values do incremental standard benefit/cost analysis to choose the best damn