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<br />. <br /> <br />. <br /> <br />. <br /> <br />001052 <br /> <br />control woir with croot at olevation 4, 159.5. Concreto cutoff \"Io.11s <br />at. tho beginning of the structure a!1d at tho \"leiI' would pro vent undor- <br />GCOpQ~Ca ~hrcugh tho OmbQWC1ont, a dist~ncc or u?proximatoly 100 <br />foct, the top of t.he spi 11vmy wall, \"Ioul'" hc.ve tho sarno outlino as <br />tho dr.l". The mD.ximum "oI'th would bo D.bout 18 foot at tho dm'ffistroam <br />cd~c o~ the crest reducing to 10 foct, 24 fe;c-t down tho chutoo r1'hc <br />c!mte \/ould continue "t e-pPl'oximatoly t;1is do?th for 180 fo,ot <br />to eleV-',tion ,",120, the top of +'ho sti.lli.ng-baGin, From this point, <br />the top of tho side walls would remain level with tho dopth incroasing <br />\mifol~ly to l5 foot in 0. distanco of 27 foct. <br /> <br />Tho stilling-bo.sin \'!oulrl bo 20 foct wido, 15 root drop, o.nd 58 <br />foot long. Tho 10\101' 23 fcot \"Iould decree.so uniformly in depth from <br />15 to 8 foot. Thoro would bo dentatod silb at tho '.mtro.nco ::Iud out- <br />let of tho bClsin. A concroto cutoff wo.l1 o.tc.he nnd of the stillilog- <br />b~-"3in \"!o1.l1d provcnt l.mdcrcu cting, l:i th "ling-walls rctuil1ing tho <br />br.d:fi11. .'1.11 sido VlD.lls wo\.:ld b'O coulltorfortod whe,ll t;ley c.re highor <br />than 20 foot, Tho foundc.tioll of tho chc\to [,nd sti lUng-basin r'ould <br />conto.in !J. drainage system" Tho oxcavation for the structuro would bo <br />on o.p9roximo.toly 2 to 1 side slopes with a maximum cut of 40f.. foct. <br /> <br />Tho o!J.rth appro"ch and outlot clmnnels woulrl bo simi hlr 'to tho <br />c.csign for the largor spillway l-ut would contain less oxc['..vr.~tion.3 <br /> <br />Tho co..oacity of tho spilhmy wo',lJ.d bo 784 cfs Clt roscrvoir w[.t"r- <br />surfaco olovation 4,164.7. <br /> <br />Futnro I!lvCGtigutiollS <br /> <br />Boforo c, final design r.nd estimo.to CD.n bo propClrod furthor <br />invcstigo:t;ioll will be noccs:;aryo Tho s.~ructuro [Ii tuG should bo czplorod <br />by drilling. Fu~tl1or search should be In,,do for concroto asgrogatGB <br />and riprnp, and the location, cho.!':::,.c;tcr, anJ volume of ::1lD.tcri~ls for <br />usa in design of the zones of the dD.I!l s!iould be d(;tormincd$ <br /> <br />on:"ATION <br /> <br />RoC'orvoir Data <br /> <br />Reservoir topogrc.phy is shol'm on S:d1ibit 4. <br />curves aro sl'orm on Exhibit 8. The norJnD.l we-tor <br />olovCltion 4,158.5. <br /> <br />Arcn Qfid cnpQcity <br />surfaco would bo Qt <br /> <br />57 <br />