Problem 09.029 Two Alternative Comparison One of two alternatives will be selected to reduce flood damage in a rural community in central Arizona. The estimates associated with each alternative are available. Use BC analysis at a discount rate of 5% per year over a 20-year study period to determine which alternative should be selected. For analysis purposes only, assume that the benefits of reduced flood damage are available in years 4, 9, and 18 of the study period. Initial Cost, $ Annual Maintenance,$/Year Reduced Flood Damage, $ Retention Pond 960,000 92,000 200,000 Channel 2,800,000 30,000 625,000 The B/C ratio is The alternative that should be selected is the retention pond