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<br />I 001053 <br /> <br />. <br /> <br />Storage capacities required for variol.:s uses are: <br /> 11'1' ig[, tion 7,001) ncro-feot <br /> Fish and wildlifo 800 acre-feet <br /> SQdimcntation f:/ 750 acre -foet <br /> Total storago 8,650 acre-feet <br /> Surchc.rge .0/ 13,150 acre-feet <br /> Totc.l 21,800 acro-feot <br /> <br />:::/ Spaco u3ublc for irrif~o.tion until <br />fi llud with sedimDnt. <br />Y Volumo built up in routing design <br />floods throug;h spilhmy, <br /> <br />Tho surchargc a llowo.nee does not Pl'ovido flood control pro- <br />tection i)ut reflects storo.g;e built u9 in the resorvoir in routing <br />the dosie;n flood through the reservoir :md spill"J:lY. <br /> <br />Dry Crook ~ould prosont littlo or no trash burdon proclem at <br />flood stc'.ge. The cover in the draino.r;e bc.sin consists mainly of <br />culti'}D.tod fields with -the rnmo.inucr iTl nnti-,rc grc>.sscs ond so.gcbrus11o <br /> <br />. <br /> <br />Table 13, shovls oper"tioll of the reservoir for 14 yon.rs, 'from <br />>'ihich it C":l bo soen tho resorvoir woul,] not ordinariI;,' spill d'~rhlg <br />the curly spring \'ihcn ice might be a. spillv;a;,r hnzc.rd~ Storms which <br />co.~ proul_wc the mCi.:dmtun floods in this :.:~rnu. occur only in the sUI;1mcr, <br />a.t which time thore is no ico in tho rosorvoiro <br /> <br />Storo.go c"'p"dty of 900 acro-feet .cor fish o.nd wildlife has b,';on <br />allo\'md. 1\1nplo silt storaGe spo.ce for fifty ;,'oars is allowed,' Ullrler <br />more critio"l oonditions of silt eont.ribution thccn hew pro=il, by <br />the allocation of oaracity discussed in Cho.ptor 2. Although there <br />are no c1o.ta av,"ilfCblo by which tho bed load ontoring Brrcziel P.oscrvoir <br />can be computed, it is believed -Chat it would be neg1ir;ibloo The <br />Ft. Lurmnio Cc.nnl, \"Jhich would bl"'; tho mo.in SOHrce of' w~tcr s11pply <br />for tho roservoir, ha.s a sand trap o.t the point of divorsion from the <br />North Platto Riv'Jr; furtharmore, this eanal is clenned and mt<intLlinod <br />c~ch coason, and ~ith a designed volocity of 2.5 foot per second, <br />thero is little [lrobc.bility of scourinG. (Seo TreClls.. A,S.C.E., <br />Vol. 87 [f92g, pago 955,) The only other sourco of' bed load would <br />be tho runnff from the roservoir basin during heavy rainfall, <br /> <br />COST ESTIM\TES <br /> <br />Goneral Assumptions <br /> <br />. <br /> <br />Tr.o adequaoy ef the desiGns und tho accurc.cy of the estimatos <br />are depond;mt UpO!! how closely actual conditions eoincido with the <br />""Gumptions made c.s to the character and extond ef the foundntj ~n nnd <br />construction matoria.ls r...s determinod from tho Qxrlurctory work. <br /> <br />58 <br />