<br />I
<br />
<br />I
<br />
<br />I
<br />
<br />I
<br />
<br />Construction-
<br />R-O-H Cost
<br />
<br />Residual
<br />Ave. Annual
<br />Oama~es
<br />
<br />Sub-Basin Alternative
<br />
<br />Rea~h A-A) (Denver)
<br />South Platte River
<br />to Federal 80ulevard
<br />
<br />I
<br />
<br />I.
<br />2.
<br />3.
<br />4.
<br />
<br />Do-NothIng
<br />
<br />IOO-Year ConduIt
<br />
<br />5-Year Conduit w/St.Morl.
<br />
<br />lOO.Year Channel to
<br />lakewood Gulch
<br />
<br />o
<br />258,000
<br />]73,000
<br />199,000
<br />
<br />39.500
<br />SOO
<br />6,000
<br />500
<br />
<br />I
<br />
<br />I
<br />
<br />Reach AIi-A2 (Denver)
<br />Stadium/Arena Area
<br />
<br />I.
<br />2.
<br />3.
<br />4.
<br />
<br />o
<br />'+77.000
<br />641,000
<br />409.000
<br />
<br />156.200
<br />60 . 000
<br />21,000
<br />60,000
<br />
<br />Do-NothIng
<br />
<br />5-Year Conduit
<br />
<br />IO-Year ConduIt
<br />
<br />5-Year ConduIt and
<br />Channel, Bryant to
<br />
<br />5-Year Conduit and
<br />lOO-Year Channel
<br />
<br />I
<br />
<br />River
<br />
<br />5.
<br />
<br />609.000
<br />
<br />)0,000
<br />
<br />I
<br />
<br />Reach A2-A3-B (Dp.nver)
<br />
<br />Federal Blvd. to 5\oan5
<br />17th to Grove, Grove to
<br />
<br />1. Do-NothIng
<br />
<br />2. 5-Veu ConduIt
<br />
<br />lake via
<br />16th,16th
<br />o
<br />461,000
<br />
<br />Ave. Annual
<br />Damage
<br />Reduction
<br />
<br />o
<br />39,000
<br />3).500
<br />39,000
<br />
<br />o
<br />96,200
<br />135,200
<br />96,200
<br />
<br />126,200
<br />
<br />TABLE 3
<br />
<br />PHASE A SUMMARY OF SLOANS LAKE SUB-BASIN AL TERNATIVIES
<br />(IN DOLLARS)
<br />
<br />present1
<br />Worth
<br />Benefi ts
<br />
<br />o
<br />604,000
<br />519,000
<br />604.000
<br />
<br />o
<br />1,490,000
<br />1,094,000
<br />1,490,000
<br />
<br />1.955,000
<br />
<br />20.500
<br />3.000
<br />
<br />to Newton, and Newton to lake outlet
<br />
<br />o
<br />271,000
<br />
<br />I
<br />
<br />I
<br />
<br />Reach B-D/J (Denver)
<br />20th Ave. & Perry St.
<br />Area
<br />1. Do-Nothing
<br />2. Detention PonJ
<br />
<br />o
<br />)0,000
<br />
<br />980
<br />o
<br />
<br />I
<br />
<br />Peach O-f ((dge~ater/Lakewocd/DenverJJeffer5on County
<br />
<br />1. Do-Nothing 0 260,000
<br />
<br />2. 5-Year tonduit/Ch<innel 1,560,000 1J7.000
<br />2 Detent Jon Pond~
<br />5-Ye.lf Street CrossinSs
<br />
<br />I
<br />
<br />I
<br />
<br />3. ICO.Year Condllit/ 1,608,000
<br />Channel
<br />2 Oete~tlon Ponds
<br />5-Year Street Crossings
<br />ICC-Vr Conduit e Sheridan
<br />
<br />4. 5-Year (oouu! t!Channel 1.158,000
<br />S-Year Street (rcs~lnss
<br />
<br />5. 5-Year ConJult ~ Pierce 1.31,8,000"
<br />to tngalls/25-Year
<br />(h.nnel, Ingalls to
<br />Sherld.lI'I
<br />5-'tCilr Street Crossings
<br />25-Vr Cond~lt @ Sheridan
<br />
<br />6. lO-Yr C()nd<.dt - Plerc<= 1,457,000.' 9,000
<br />to lr:galls/25-Yr Channel
<br />Ingalls to Sherldar:
<br />5-Yr Stteet Crossln~s, 25-Yr Conduit e Sheriu..m
<br />
<br />72.000
<br />
<br />I
<br />
<br />64,000
<br />
<br />22,000
<br />
<br />I
<br />
<br />o
<br />17.500
<br />
<br />o
<br />,80
<br />
<br />School District)
<br />o
<br />
<br />213,000
<br />
<br />248,000
<br />
<br />196,000
<br />
<br />238,000
<br />
<br />2501,000
<br />
<br />o
<br />15,000
<br />
<br />o
<br />3,300,000
<br />
<br />3,842,000
<br />
<br />3,036,000
<br />
<br />3,687,000
<br />
<br />3,888,000
<br />
<br />present2
<br />',Iarth
<br />~
<br />
<br />o
<br />329,000
<br />212,000
<br />227,000
<br />
<br />Not
<br />Benefits
<br />
<br />o
<br />+275,000
<br />+307,000
<br />+377 ,oco
<br />
<br />o 0
<br />519.000 +971,OCO
<br />715,000 +1,379,000
<br />476,000 +l,C14,OOO
<br />
<br />714,000 +1,241,000
<br />
<br />o
<br />535.000
<br />
<br />o
<br />70,000
<br />
<br />o
<br />-264,000
<br />
<br />o
<br />-55,000
<br />
<br />o 0
<br />1,586,000 +1,714,000
<br />
<br />1,644,000 +2,198,000
<br />
<br />1,238,000 +1,798,000
<br />
<br />1,411,000 +2,276,000
<br />
<br />1,504,000 +2,384,000
<br />
<br />Beneflt/]
<br />Cost
<br />Ratio
<br />
<br />Sub-Basin Alternati~e
<br />
<br />Reach F-G (LII!..ewood)
<br />
<br />1. Do-Nothing
<br />
<br />o
<br />I.e'-
<br />2.54
<br />2.66
<br />
<br />2. 5-Year Conduit
<br />at Io'ads...orth
<br />
<br />3. .1O-Year Condui t
<br />at Wads..orth
<br />
<br />4. 25.Year Condui t
<br />a.t l.Iad~l.\Iorth
<br />
<br />o
<br />2.87
<br />2.93
<br />3.13
<br />
<br />5. laO-Year Condui t
<br />at \oiad5o~orth
<br />
<br />6. Oetention Pond at
<br />20th ana l.Iad5oworth
<br />
<br />Construction-
<br />
<br />11.-0-10' Cost
<br />
<br />o
<br />
<br />64,000
<br />
<br />76,000
<br />
<br />96,000
<br />
<br />114,000
<br />
<br />507,240
<br />
<br />2.74
<br />
<br />I. Do-Nothing
<br />
<br />Reach f-L (Edgewater/LaKtlWood/Wheatridge)
<br />
<br />o
<br />
<br />2. S-Yt,ar Conduit
<br />
<br />3. Dententlon Pond at
<br />25th I;. Vance
<br />
<br />o
<br />0.51
<br />
<br />4. Detention and
<br />5-Year Condl..li t
<br />
<br />445,000
<br />
<br />161,000
<br />
<br />458,430
<br />
<br />Residual
<br />
<br />A~e. Annual
<br />
<br />Damaqes
<br />
<br />6,650
<br />
<br />\,100
<br />
<br />450
<br />
<br />41,520
<br />
<br />14,200
<br />
<br />12,320
<br />
<br />5,480
<br />
<br />Ave. Annual
<br />
<br />Damage
<br />ReductiOn
<br />
<br />o
<br />
<br />5,550
<br />
<br />6,250
<br />
<br />150
<br />
<br />6,500
<br />
<br />o
<br />
<br />6,650
<br />
<br />o
<br />
<br />6,650
<br />
<br />o
<br />
<br />27,320
<br />
<br />29,200
<br />
<br />36,040
<br />
<br />I. Do-Nothing
<br />
<br />Reach J-K (Edgewater/Den~er/Jefferson County School District)
<br />
<br />o
<br />
<br />o
<br />0.21.
<br />
<br />2. DetentiOn Pond
<br />~ 24th & Benton
<br />\J/~8" Condui t to LaKe
<br />
<br />o
<br />2.08
<br />
<br />3. 5~Year Cundl..li t
<br />26th to 24th A~e.
<br />~/IOO~Yr. Channel
<br />Chase to Sloan5o Lake
<br />
<br />2.34
<br />
<br />lj. 5-Year Conlll..lit
<br />26th to 2~th A~e.
<br />wIDe tent ion Pond
<br />w/~8" Condui t to L.lke
<br />
<br />o
<br />
<br />157,000
<br />
<br />688,000 *
<br />
<br />2.45
<br />
<br />5. 5~Year Condui t
<br />26th A~e. to Lake 391,600
<br />
<br />391,600
<br />
<br />2.61
<br />
<br />6. 5-'t'ear Condl..li t
<br />26th to 24th A~e.
<br />w/IOO-Yr. Channel
<br />Chase to Benton &
<br />100-Yr Conduit
<br />Benton to Sloans lake 1,0\\,700
<br />
<br />98,000
<br />
<br />70,000
<br />
<br />12,000
<br />
<br />12,000
<br />
<br />\6.000
<br />
<br />J2,OOO
<br />
<br />28,000
<br />
<br />86,000
<br />
<br />86,000
<br />
<br />82,000
<br />
<br />86,000
<br />
<br />Present I
<br />
<br />Worth
<br />
<br />Benefi ts
<br />
<br />86,000
<br />
<br />97,000
<br />
<br />10\,000
<br />
<br />103,000
<br />
<br />103,000
<br />
<br />423,000
<br />
<br />452,000
<br />
<br />559,000
<br />
<br />434,000
<br />
<br />1,332 ,ODD
<br />
<br />1,332,000
<br />
<br />present2
<br />l.Iorth Net
<br />Costs Benefits
<br />
<br />o
<br />
<br />o 0
<br />
<br />93,000 -7,000
<br />
<br />105,000 -8,000
<br />
<br />1ItI,OOC.
<br />
<br />123,000 -22,000
<br />
<br />-38,000
<br />
<br />545,000
<br />
<br />o
<br />
<br />581,000
<br />
<br />180,000
<br />
<br />535,000
<br />
<br />o
<br />
<br />o
<br />
<br />-442,000
<br />
<br />o
<br />
<br />o
<br />
<br />194,000
<br />
<br />-158.000
<br />
<br />+272,000
<br />
<br />+ 24,000
<br />
<br />o
<br />
<br />+240,000
<br />
<br />770,000 +562,000
<br />
<br />460,000
<br />
<br />1,270,000 461,000 +809.000
<br />
<br />+872,000
<br />
<br />\.332,000 1,155,000 177.000
<br />
<br />Benefit/]
<br />Cost
<br />
<br />Ratio
<br />
<br />o
<br />
<br />0.92
<br />
<br />0.92
<br />
<br />0.82
<br />
<br />0.7]
<br />
<br />0.19
<br />
<br />o
<br />
<br />0.73
<br />
<br />2.5\
<br />
<br />1.04
<br />
<br />o
<br />
<br />2.24
<br />
<br />1.73
<br />
<br />2.90
<br />
<br />2.75
<br />
<br />RCdCh J-No/"th ('oIheatridge)
<br />
<br />Inc1u.:les ac-quisition and relocation of I single family re::.idence and one, four unit dwelling on the ~uuth side
<br />of 24th A~enue between Benton and Sheridan.
<br />
<br />1.15
<br />
<br />2.59
<br />
<br />I. Do-NOthing
<br />
<br />I
<br />
<br />* Includes acquisition and relocation of 5 re5oidence~ on South sIde of 18th Ave. between Eaton and Depew Streets.
<br />
<br />2. 5-Year Condul t
<br />
<br />NOTES:
<br />
<br />I
<br />
<br />IA~erage annual damage reduction x present worth factor (15.49091) based on 6-1/8~ & 50-year life
<br />
<br />I
<br />
<br />3present worth benefits ~ pre::.ent worth costs.
<br />
<br />2lncludes R~O.\J, con~truction, engineering, administrative, maintenance and contingency
<br />
<br />3. 10-Year Conduit
<br />
<br />4. 25-Year Condui t
<br />
<br />5. 100-YeM Conduit
<br />
<br />6, Detention Pond
<br />~ 31st I;. Kendall
<br />
<br />o
<br />
<br />236,000
<br />
<br />260,000
<br />304,000
<br />374,000
<br />180,000
<br />
<br />13,860
<br />2,830
<br />
<br />11,030
<br />
<br />750
<br />260
<br />
<br />13,110
<br />13,600
<br />
<br />o
<br />
<br />13,860
<br />
<br />750
<br />
<br />13,110
<br />
<br />o
<br />
<br />171,000
<br />
<br />203,000
<br />
<br />211,000
<br />
<br />215,000
<br />
<br />203,000
<br />
<br />o
<br />
<br />310,000
<br />
<br />332,000
<br />
<br />373 ,000
<br />439,000
<br />
<br />20\,000
<br />
<br />o
<br />
<br />o
<br />
<br />-139,000
<br />
<br />-129,000
<br />-162,000
<br />-224,000
<br />
<br />+2,000
<br />
<br />o
<br />
<br />0.55
<br />
<br />0.61
<br />
<br />0.57
<br />0.49
<br />
<br />1.0\
<br />
<br />15
<br />
|