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<br /> TABLE XI-l
<br /> ~ECOMMENOEO ALTERNATIVE
<br /> BENEFIT/COST TABLE
<br /> CLEAR CREEK
<br /> YOUNGFIELO through GOLDEN
<br />1 2 3 4 5 5 7 a 9 10 11 12 13 14 15
<br /> Average (9..11)
<br /> 50 Yr. 8-114~ 50Yr.8-1!41: Annual Average (5+7+8) (10-Il) (10-11)
<br /> Annualiled Annualized Annual Flood Annual Annual Annual 50 Yr. 8-1/U Benefit
<br /> Oesign Construction Construction R_O_OI R-O->! "" Damage Damage Improvements Me< PresentlllJrth /Cost Annual
<br />eilch Alternative Frequency Cost Cost Cost Cost Cost Cost Reductions Cost 8enefit of Net Benefit Ratio Cost
<br />- - -
<br />1 Long Term Plan:
<br /> Grass-lined
<br /> Channel with
<br /> bridge and
<br /> other selected
<br /> improvements 100 2,100,000 176,600 1,514,000 127,300 20,350 1,000 95,300 324,250 -228,950 -2,722,500 0.29 325,250
<br /> Interim Plan:
<br /> Floodproofing
<br /> with remedial
<br /> improvements 100 500,000 42,050 -0- -0- 20,350 29,000 57,300 62,400 4,900 58,300 1.08 91,400
<br />2 Selected Structural
<br /> Improvements 100 350,000 29,500 -0- -0- 52,200 81,700 81,700
<br />3 Floodplain
<br /> Regulation 100 -0- -0- -0- -0- 35,000 5,000 -0- 35,000 -35,000 -416,200 40,000
<br /> Flood Warning
<br /> System for
<br /> tIpper Clear
<br /> Creek 100 170,000* 10,100 -0- -0- 12,000 96,300** .. n,lOO -72,100 -262,800 118,400
<br />This cost is the estimated portion of the total system cost applicable " this study area.
<br />Some reduction in flood damages would occur, but difficult to estimate.
<br />Information not for public disclosure.
<br />1 Long Term Plan as
<br /> a Multipurpose Project
<br /> Starting costs 100 2,100,000 1,514,000 20,350
<br /> Less cost savings
<br /> due to other
<br /> furn:lingsources, -l,370,000a b _15,350c
<br /> etc. .1,272,400
<br /> Final Costs under
<br /> assumed scenario 730,000 61.400 241,600 20,300 5,000 1,000 95,300 86,700 8,600 102,300 1.10 87,700
<br /> b
<br />!\.ssumeStateandfederalhalpwith 75% of bridge costs at life of bridges, after substantial AssttnedonationoflandbyCoorsaspartofVisitorCenterDevelop:nent($331,500). Ass<.medonation
<br />JiJIlage, or at time of major street project ($770,OOO). required channel R.O.'~. by School of Mines ($72,OOO) and reduced R.O.~. coHs along Police Training
<br />~SUl1e improvements at WTP berm completed under interim plan (S2OO,OOO). Academy ($143,500). Assume land in channel area proper is of no cost (U28,900). AssllTlecost of
<br />~sltlle Coors or developer of MitChell School property constructs Channel improvements between Evans Tract upstream of Washington Avenue Is borne by Jeffco/Golden Open Space Fund ($596,500).
<br />fucker Gulch and Washington Avenue ($400,000).
<br />
<br />l,ssunemost <naintenance of Clear Creek corridor fn Reach 1 by Golden ParksOe;;t.
<br />
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