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<br />VII-2
<br />
<br />TABLE VII-l
<br />COMBINATION ALTERNATIVE
<br />RECOMMENDED BY CONSULTANT
<br />I N PHASE A REPORT
<br />
<br /> 5 9 12 13
<br /> 3 40 Yr. 7% 7 8 Annual 10 11 Benefit! Benefi t!
<br /> 2 Design 4 Annua 1 i zed 6 Annua I i zed Annual Flood Annua 1 Intan- Cost Cost 14 15
<br /> Entity! Frequency Construction Cons t ruc t i on R-O-W R-O-W O&M Damage Dama g e gible Ratio w!o Ratio w! Annual Net
<br />Reach Alternative Description (Yr. ) Cost Cost Cost Cost Cost Cost Reductions Benefits Intanqibles Intanqibles Cost Benef i ts1,
<br />Arvada - Ralston Creek
<br /> R-l Grass-l ined 100 $1,585,200 $118,900 $910,900 $ 68,300 $46,700 -0- $405,000 $28,200 1.73 1.85 $233,900 $ 199,300
<br /> R-2 Nonstructural 100 756,400 56,740 -0- -0- 6,160 $260,000 742,000 -0- 2.30 2.30 322,900 679,100
<br /> R-3 European Channe I 100 3,030,600 277,300 1,446,600 108,500 32,300 -0- 1,850,000 42,600 5.03 5.14 368,100 1,474,500
<br /> R-4 Grass-l ined Channel 100 630,200 47,300 220,400 16,500 21,100 -0- 542,500 20,800 6.39 6.63 84,900 478,400
<br />Jeffco- Ralston Creek
<br /> R-5 Nonstructural 100 150,000 11,300 -0- -0- 7,130 700 200 -0- 0.03 0.03 19,130 - 18,230
<br />Arvada - Leyden Creek
<br /> L-l Nons t ruc tu ra 1 100 78,300 5,870 -0- -0- 1,680 8,000 2,800 -0- 0.18 0.18 15,550 - 4,750
<br />Jeffco-Leyden Creek
<br /> L-2 Nonstructural 100 201,400 15,110 -0- -0- 4,300 25,000 19,200 -0- 0.43 0.43 44,410 210
<br /> L-3 Nonstructural 100 150,000 11,300 -0- -0- 6,130 700 100 -0- 0.01 0.01 18,130 -17,330
<br /> -
<br /> 6,582,100 543,820 2,577 , 900 193,300 125.500 294,400 3,561,800 91,600 1,107,020 2,790,780
<br />" Net Benefits = Annual Dama ge Reduc t ions + Intangible Benefits - Annua 1 Cost
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