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<br />" <br /> <br />~5- <br /> <br />,The nport further state. 'that II. pll1l1 illlvelvLnt; eon$t1'\tI~tiOn of <br />II. d8Jll a ,the l\fl;ultang Sit. is moat seca_odly juatif'ied. SUllhadalllwould <br />provide tlfXld protection tl!l tht l~r valley I1l1d r1ald5.200&oJ:'$~fa.t an- <br />nue.lly t dependable ooneerva.1;ionbe>>.ef1.t&, lIlccordhtg to U.S.llu:r9ll.U of <br />Reel~ ion 8stimates. <br /> <br />The prope.eel dam wou.ld ..~, a eOl'1oreta gra'll'ity typelltructurll. 197 <br />teet in 'height. having an .:un gEl'i:;lIidoverflow spillway with a capaciioy of <br />209iO(lO Jlot.$. The resitrvoirwou.ldhllve 20.000 Mre-te"t of' deadll:torage <br />, capMU; ,.and the remaLning ad~ltlQilal oapaoity of 42.500'.\01'.-to.'I;. up to <br />, thellpl .l.\;'Iay crest. would be fot'e(\ns$t"1I'lation $torago. R~rauUc st1JUellof <br />tnI' A' hgine.rs i1ldicat.s thattl.l;(J .000 e.f.s. tloodcollliug into the re- <br />$ervcl1r'fihlm.it "'tl.S fUll t":tlle.~iUway. wOl.lld be r~ue~ tol~.OOO c.f.s. <br />byt, " ~ry dehrition .iIll t"fil'''~ 5~f'!!Jot blcr4llllent ao..,.the.plUway,er...4t. <br />,.A:l1i~"'a.... ,of d,8pt;h over th"iI,,~iJ:llray would result i:a lnor_sedd~.oharg. <br />nligl.,H'/timlD .0000 .f' 0110 toeQ9.ooo e.r.s> ~ Whe,1'I depth.! WIlt.,. 0. the <br />.ptll_touldrang8 frollll 5 r.~~34 teet. ,'.') " <br /> <br />(12) Al:Inual benefit. are caloulated. u the il'um of pr.....en.ble <br />dir'e(\t dindlreot flood 10s.8. and irrigation benefit.. a.n&1'1t1l attri- <br />butabl. to flood 101118 pr.venUonwere _p1lted for experienced flOll'll am <br />gr~terthan e-xperialloed tlo1t'lI"The latt.r iilembeillg the e.U_ted addi- <br />tional...... which migh:t resUlt r~ 11 l;(J..oPO ".,t.. . flood. tirlfl!lUa <br />be.tit.ere estbated lily t"i'li'~~h~eau of lbJo1e.llation to ".1;0.00 pElt' <br />lIl1lre-t'. The follG1ll1ng tllble>b fl"Clll tM report, , <br /> <br />EIlf~.t1lD .AV:~:aAQ.Am!m B,gPI'l'3 FOR <br />Tn Dt1.u.~,plW'. lWSfAJiGUSii:,WlOlll <br /> <br />ta.n&f'Us :Based: a.nef1. t8 Based J Total <br /> <br />Itelll <br /> <br />JonhperlenQ8d J On Gretel' <br /> <br />870 <br /> <br />J Estimated <br />t, Annual <br />, B<m.fite <br />f <br />12.485 <br />, "2.485 <br />, '52.000 <br />'56.970 <br />J <br /> <br />t <br />t, <br />: <br />Prevent hIe direot 1'100d 10$$$.\',1/" <br />~.>>. bl. indirect flOod 11>.""fI'( , <br />Irrl.tlitlli1o Boneti $a ','., ,,+ ' <br />,TotalE!1timated Annual Bell.af'tta,t " <br />, <br /> <br />'nows <br /> <br />2.050' <br />2.050' <br />52.000 <br />%.100 <br /> <br />: thll.n Expe- <br />l rlenoed Flows <br />: <br />t <br />t <br />I <br />t <br />, <br /> <br />.lU5 <br />435 <br /> <br />, .' '" (13) Allocatioll, o:tJiio*tte irri.gation 1. Olll tho bas!,sotthe ratio <br />, ot ,il'ri aUon beMtit& to to\Jal'.belieti,tlll. OJ' 9109% of the total cost. <br />