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<br />I
<br />I
<br /> TABLE VI-l
<br />I DAMAGE COMPUTATION SUMMARY
<br />I Five-Year Damages Ten-Year Damages
<br /> Reach Direct Indirect Total Direct Indirect Total
<br />I A $ 26,800 $ 2,600 $ 29,400' $ 27,lOO $ 2,600 $ 29,7002
<br />I B 52l,500 77,800 599,300 587,lOO 87,500 674,600
<br />C l07,400 l6,400 l23,800 l05,200 29,400 134,600
<br /> D lO,900 l,400 l2, 30 U 54,lOO 8,500 62,600
<br />I E 384,600 116,400 50l,000 44l,800 13l,lOO 572,900
<br /> F 387,200 l2l,800 509,000 423,000 l22,300 545,300
<br />I G 659,200 ll9,000 778,200 708,100 128,500 836,600
<br />H l,050,lOO 345,400 l,395,500 l,057,000 347,400 l,404,400
<br />I $3,l47,700 $800,800 $3,948,500 $3,403,400 $857,300 $4,260,700
<br />I 50-Year Damages lOO-Year Damages
<br />Reach Direct Indirect Total Direct Indirect Total
<br />I A $ 29,400 $ 3,000 $ 32,400' $ 32,600 $ 3,500 $ 36,lOO"
<br />B 643,000 95,500 738,500 658,700 98,200 756,900
<br />I C l55,300 22,800 l78,lOO l73,600 25,800 199,400
<br />D 66,200 ll,200 77,400 85,200 l5,lOO lOO,300
<br /> E 498,000 l44,000 642,000 562,200 l55,900 718, lOO
<br />I F 478,900 l50,000 628,900 495,200 l53, lOO 648,300
<br /> G 790,lOO 148, lOO 938,200 8l6,800 l53,200 970,000
<br />I H 1,l42,400 373,200 l,5l5,600 l,l54,500 375,600 l,530,lOO
<br /> $3,803,300 $947,800 $4,75l,lOO $3,978,800 :;;980,400 $4,959,200
<br />I
<br /> '$2l,050 in Denver, $8,350 in Lakewood
<br />I 2$2l,400 in Denver, $8,300 in Lakewood
<br />I '$22,850 in Denver, $9,550 in Lakewood
<br /> 4$26,500 in Denver, $9,600 in Lakewood
<br />I
<br />I
<br />
<br />l8
<br />
<br />predominantly construction of facilities capable of conveying a
<br />
<br />lO-year flood without damage to property. These facilities
<br />
<br />would eliminate flood damage in lO-year and lesser floods.
<br />
<br />However, floods of greater than lO-year magnitude would result
<br />
<br />in damages, though greatly reduced from those which would occur
<br />
<br />at present. In order to evaluate the full spectrum of damages
<br />
<br />before and after construction of the Master Plan, the anticipated
<br />
<br />
<br />financial losses are converted to average annual damages. Table
<br />
<br />VI-2 illustrates these average annual damages in each Reach.
<br />
<br />The average annual benefit to be derived from the facilities is
<br />
<br />the difference between the average annual flood damages without
<br />
<br />improvements and the average annual damages after improvements.
<br />
<br />The tabulation illustrates that the entire basin is subject to
<br />
<br />average annual damages without improvements of $l,492,680.
<br />
<br />These damages could be reduced to $23l,270 by implementation
<br />
<br />of the Master Plan. The proposed improvements can thus generate
<br />
<br />a benefit estimated to be $l,26l,410 per year.
<br />
<br />Evaluation of Costs
<br />
<br />The costs of the master plan include land acquisition, facilities
<br />
<br />construction, operation and maintenance, and engineering and
<br />
<br />legal fees. A contingency allowance of lO% is also applied to
<br />
<br />construction and land costs. Table VI-3
<br />
<br />presents the construc-
<br />
<br />tion and land costs and Table VI-4
<br />
<br />presents operation and
<br />
<br />maintenance costs. In order to present a comparison of costs
<br />
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