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<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 />