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<br />~ <br /> <br />,y <br /> <br />spillway design flood could be co~verted to oth~r uses by installation <br />of auxili~ry spillway capacity, <br /> <br />The Narrows site was found to be the most ~conomical si tc <br />avaihblE. lt €l1o>rs t:fie""crcoetion of the- greatest benefits fro,n ;,11 <br />asp~cts; it is the best plan from iln engineEring standpoint ir, th~.t <br />sLE=p"~e problems are less than a t other sites; i. t hilS grc.2tcor flc<i- <br />bili ty to accoffilnode te changing condi tions; wd it is maKe s possi bl'. che <br />b~st use of thE water available, <br /> <br />Plan of Develop,nEnt.--The majoT featurEO in the pliln of d~v(lopmEnt <br />will bE. the Narrows Daln on thE:: 00uth Pl2ttte RiVer. The chcmnsl of <br />Bijou CrEOek will bE changEOd to dirEOct thE flow into thEO rEservoir so <br />completco rE:gu12tion can be (CiVET' to .211 floods which <night occur on <br />chat strLtiIn. The Union Pacific Rr<ilroQd, "tete Highwe.y.14)1, county <br />roods, power lines, tElephont linES, ano othEr utili tiE swill bG rdoc.- <br />~tEd so 3Ervic€ can bE. mnint2ined. <br /> <br />ThE dilln and dike across Bi jOll CrEeK will h;;vc D. tot;;l crEst length <br />of 31.1,000 fEet end <.l hEit;ht'Qbove foundation of 147 fEOct and will con- <br />tain ePioroximately 16,300,000 cubic YD.rds of InD.t"ri2.1. RiVEr outlE.ts <br />2nd spillway will bE constructcd on the north side of the river. A <br />s~p"r"tE outll t will bE provided to maintain SCrviCEOGO thE: Fort dorg"n <br />C<1nu.l. <br /> <br />,The initial Glloc2ti.on of the use of visual spece iI, the pro}Joscd <br />r~sLrvoir is as follows: <br /> <br />Tot':-.l. . . . . . . , . . . . . <br /> <br />1318,000 acrE:.-ff..J_ t <br />250,000 " " <br />75,000 " " <br />323,000 " " <br />52,000 " " <br />1,518,000 acrt...-fct- t <br /> <br />Supcrstorcg~ .. ., . . . . . <br />Flood control, . .,. . . . . <br />Joint use (flood and consErvation) <br />ConsE..rvation . . ., . . . . <br />Deed stor~gE (controlled by hEed requirEd <br />ct Fort J10rgan Cannl DUtlL t) <br /> <br />The ir-.violatc flood control sp~ce of 250,000 <.Jcrc-fcet "nd the <br />75,000 acrEc-f"'Et of joint-USE spaCE h[.vE been q,rEcd UpOIl by the <br />Corps of J:',ngineEOrs D.S being the cap2ci ty rEquired to control floods of <br />r'_cord on thE South Platte River. This Sp2C" will also he sufficient. <br />to control Bijou CreEK floods, The joint-usle pool is to be opcrGtLd <br />jointly for flood control and consErvs.tion during the snowrnel t pc riod-- <br />April 15 to June 15', The flood control spe.cc will b~ use d ,"ny time <br />the conservction capacit.y is full ~nd thE riv2r inflow EOxCCEds 10,000 <br />second-fE..et. Sedimcntn t,ion vlill t-.ncro2ch on the [dlocE:tions gi'l8f! <br />above, and it is EstimClt.Ed th2t ;,fter 50 YEars of use the conservat.ion <br /> <br />3 <br />