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<br />Summary of Annual Benefits <br /> <br />A comparison of estimated total benefits follows: <br /> <br />Function <br /> <br />Present <br /> <br />H.D. 320 <br /> <br />Irrigation <br />Flood control <br />Fish and wildlife <br />Recreation <br />Total, discounted <br /> <br />$1,631,500 <br />961,000 <br />292,700 <br />790,000* <br />$3,675,200 <br /> <br />$1,631,500 <br />1,599,000 <br />552,200 <br />1,410,600* <br />$5,193,300 <br /> <br />* Adjusted for rate of occurrence. <br /> <br />Interest During Construction <br /> <br />The estimated project cost at January 1969 prices is $68,050,000. <br />Interest during construction at 3~ percent amounts to $5,993,900. <br /> <br />Benefit-Cost Analysis <br /> <br />A comparison of current benefits and net investment in the unit <br />results in a benefit-cost ratio of 1.89 to 1.00 based on a 100-year <br />period of analysis at 3~ percent interest as derived in table 1. <br />Comparative ratios are as follows: <br /> <br />Item <br /> <br />H.D. 320 <br />(3-1/8%) <br /> <br />1.52 <br />1.62 <br /> <br />Present <br />(3-1/4%) <br /> <br />Direct benefits only <br />Total benefits <br /> <br />1.81 <br />1.89 <br /> <br />6 <br />