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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br /> PROJECT ALTERNATIVES SUMMARY <br /> Louisville Gravel Harper Lake Harper Lake Harper Lake Harper Lake E1dorado <br /> Reservoir Pit Alternate Alternate Alternate Alternate Springs <br />Alternate Alternate Alternate I II III IV Alternate <br />Crest 5615 6090 <br />elevation 5600 5613 5615 5610 5610 5610 <br />H.W.L. 5610 6075 <br />elevation 5595 5610 5610 5605 5605 5615 <br />8ottom 5592 5930 <br />elevation 5573 5601 5592 5587 5587 5587 <br />Average <br />depth (ft.) 17.5 9.0 18.0 18.0 18.0 18.0 42.1 <br />Surface Area <br />(acres) 17.5 11.5 41.2 41.6 19.5 60.7 19.0 <br />Capacity <br />(acre feet) 305 99 704 715 280 984 800 <br />Capacity <br />increase <br />(acre feet) 133 99 704 715 280 984 800 <br />Exc~vation 143,000 44,000 665,000 941,000 721,000 1,386,000 0 <br />(yd ) <br />Emb~nkrnent 61,500 64,000 287,000 164,000 66,000 293,000 65,500 <br />(yd ) <br />Total Cost <br />(Jan.. 1984) $1,122,500 $612,500 $3,238,000 $3,562,000 $2,502,000 $5,611 ,000 233,500 <br /> . <br />Cost per acre <br />foot of additional <br />storage <br />(Jan., 1984) $ 8,440 $ 6,187 $ 4,599 $ 4,982 $ 8,936 $ 5,702 9,402 <br /> <br />Ix <br />