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r <br />i <br />f <br />~i <br />• <br />66 <br />. 1 <br />i <br />~i- -~ <br />t <br />~~~- ~~-r'-'"• <br />~.~/ <br />. ~c~ <br />•..- n ~ --- -- <br />/, .__. <br />I 1 - ~~~+~` __i <br />.. 1_-_.. .- _-..__._. __._. <br />-! --~-- --~------1 <br />~..1 _.-__._-_ <br />I <br />,.i _. _. <br />.~ - I <br />. _ I _~-_: <br />c :r <br /> <br />.. ..~~ <br />.B~ <br />,. .o. ~,. m~~..•~". o. . <br />._ 'cc, <br />roi o ..,.. ~ a... ... <br />.. , o ... . <br />,a •-o..~ .. .. .. <br />IDi <br />l~pm• qe U~~~paph tl<n.o.•on for u~gagetl or.n. leA-D-7i Se. <br />L'\ITGP,.-~P}i DE}:I','~1TI0\ FOP. <br />L'~GAGED :;P.EA (F.efer to Fig. ZS) <br />'~ Given: Dimensior.iess graph (C) and lao rela- <br />1 tiorship cur~~e (B) for comparable area. <br />P,equired: i:ni:eraph for basin above given <br />poi r. t. <br />Procedcre: <br />.. 1 (a) Outline drainage bour.dar}-, determine <br />area (fig. 2S(-~)). <br />_~ (b) Find: <br />L=!^_:.~ h o`: lor.pest «aterenurse <br />irorn porn: of ictcres: ;o tt1ater- <br />s^ed d:::c'.e, me cured in niics. <br />1 <br />cc_cc^tro;c. n: basin-:aua!;}'`ocnd <br />by rer--icall}' suspending acard- <br />i• board cuto;:: of basin sh^_pe sue- <br />) <br />.~ <br />---~ <br />cessirely from ri•:o ur mnr,~ <br />points and llydin;; intcrsecuur, <br />of plumb lir•;> ircm c:rh nmm. <br />L~,=length of v:aurco.:r,q in miles, <br />from poirtt cf interest to intcr- <br />scction cf pcrp: nda~: r f rom ca <br />to S:fCam 1!:^.C::1C r1t. <br />S-occrall slope in icc: per mile of <br />]ones[ n'atcr.nur.;c from poi n' <br />of interest to divide. <br />(c) 5olce for factor: <br />L L„ <br />~~S <br />(d) Enter graph, fi;,:re ^_Sf5), Leith LL <br />\ J <br />slue ar.d read the corresponding lad <br />time. (Points cs:a'olis:;ine empirical <br /> <br />DESIGN Gf Snu.lL :'~,r.t5 <br /> •. D'~ a <br />L <br />' .• <br /> •..... ('• <br />i . •e <br /> e <br />. <br />~ ~ <br /> 1 ... <br />e.... ` ~ . .. <br />. L. <br /> o c.__e.. - <br /> .___. _.. _....__._ <br /> <br /> <br /> <br /> <br /> <br />• <br />,.. <br />Ts ry` ---- ~--- ---- --- <br /> f .~ <br />