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;~ <br />r. , r% <br /> <br /> , <br />~ <br />~ ~ i <br />~ ~ <br />. <br /> <br />, <br />, i ~ <br />~ i <br />~ ~ <br />PVG 1 ~ ~ <br />. <br />2 pipe <br />~ ~ <br />~ , <br />S;eat {.yl, ~ i <br />//,,.~ <br />3/'~~ Y 1}" ~ <br />~ ~ i <br />~ 1 <br />I 1 <br />measuring atiek , , <br /> <br /> ,, , <br />i <br />i <br />1 <br />Note.--Set B-pen onil at <br />top of 3/4" sr 1~" measur- <br />ing stick for riush fit <br />with cap. <br />_ FLOW <br />B•or0. U <br />Perforated tia cup •: ` <br />for regreaulated \v) <br />cork <br />(G r;wd C.rk :~ 81e.~~r~ V <br />6ectioa A-A <br />/4" intake <br />iolee <br />U. S. GEOLOGICAL SURVEY <br />CREST-STAGE GAGE <br />135 <br />l 2~ I <br />Beale <br />-y <br />Q ....., i,1y ~~1~r1,<.n <br />1 5 f<.1.~ 2' Prc 5.4.E-1. Yo P,fe <br />2 2" PVC c:,p; <br />1 J/,~ • x lys` X Sfec~ St..,ytf o..~ 8wd <br />b~..a-ry~~ a.J< ~rw.,r1 <br />PN.6aaD <br />FIGUBE 2.13x-Typical erect gage installation at • highway bridge with detailed drawing. <br />~5'p(••faj~caiare,~t79~Fel.l M.,wval f•. Research i.+Al~:crlta•al Hy.4.layy~A~.;eritrral H.wJ6e.kN.22f <br />vent hole <br />_~ <br />A ~ S{r fn..+ ~~ A <br />