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<br />. <br /> <br />. <br /> <br />. <br /> <br />2155 <br /> <br />(Cost allocations. Initial Development) <br /> <br />Flood control <br /> <br />As there is no alternate site for a flood control reservoir, a <br />single-purpose structure would have to be erected at the Pueblo dnm- <br />site. It is estimated that a resorvoir at tho Pueblo site for flood <br />oontrol only with sedimentation protection would require 250,000 acre- <br />feet of capaoity. The cost of a reservoir of that capacity is esti- <br />mated at ~29,666,OCO. Although the flood oapaoity of 142,000 acre- <br />feet protected by a sedimentation pool of 65,600 aore-feet would re- <br />quire a total capaoity of only 207,600 aore-feet, it is believed that <br />an additional 42,.00 acre-feet would be justified to provide for some <br />doad storage and for bedload which is diffioult to estimate. <br /> <br />Flood control benefits amount to '~1.002,OOO annually and the flood <br />eontrol share of project operation, maintonanee, and replaoement ex- <br />penses amounts to $28,090 per year. The net benefit of ~973,910 whon <br />capitalized at 2-1/2 percent over 100 years equals $35,661,000, an <br />amount substantially in excess of the alternate justifiable expenditure <br />of ~29,666,OOO. <br /> <br />Recreation <br /> <br />Gross recreational benefits of $109,000 per year and operation <br />and maintenanco costs of ~30,OOO annually wore estimated by the <br />National Park Service. As it would be impracticable to construct <br />single-purpose facilities to obtain equivalent recreatien benefits, <br />the net benefit of S79,000 was capitalized at 2-1/2 percent for 100 <br />years to determine the alternate justifiable expenditure of ~2,893,OOO <br />for recreation. <br /> <br />Allocation of costs <br /> <br />The allocation of construction costs wns computed by subtracting <br />~hu spocific costs for each function from the alternate justifiable <br />exponditure thereof. Tho rcsulting difference for each function was <br />thon set up as a percontage of the total difference for all functions. <br />The porcentage for each function was then multiplied by the total joint <br />costs to determine the amount of joint cost chargeable to the individ- <br />ual functions. The specific cost for each function plus the appropriate <br />chAre of the joint cost gavo the final allocations. <br /> <br />~ <br />