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<br />O~1832 <br /> <br />. <br /> <br />By superimposing and orienting the Pueblo storm to obtain r.Jaximwa <br /> <br />rainfall volume on the Purgr,toire watershed above Trinidau, total <br /> <br />rainfall over the areas above and below the Bopris ,lD.n site is found <br /> <br />to be approximately eqU[cl. For the 1904 storm, totc.l r (~infall Ims <br /> <br />greater nt Triniclc.d than Lt North Lake near the headwaters of the area. <br /> <br />It is probable, however, that there waS more eq,","l dlstribution of <br /> <br />rrlinfcll abovo and below the dam than the records indicatG since 11 <br /> <br />large voluDe of water was reported from Lengs Canyon. Snuller storJ:ls <br /> <br />,lith their greater frequency may overlap both areas or occur entiroly <br /> <br />on either. Reduction in the time of runoff concentrc.tion for the <br /> <br />losser reach above the cbn site V1ill offset the 8m't.ller volume of <br /> <br />flood to produce peak discharges eque.l to thoSG at Triniclnd. <br /> <br />To obtain the residw;.l flood from tho aroa b810vI the dam <br /> <br />. <br /> <br />sitc the volume is obtained by asslllaing runoff proportionol to areo., <br /> <br />with the peak cUscharge uetGrmined from a 8pdificdion of the hydro- <br /> <br />graph <br /> <br />providing only .~ the poriod of runoff concentrntion for the <br /> <br />short roach of thJ.s lower nreo., which is about 15 miles in lcmgth. <br /> <br />Probable Floods <br /> <br />.Year <br /> <br />___ Sopris_ Dum Sitl?.__..__.. <br />oluL1e A.F. Die. hur ,. ~ <br /> <br />Bopris Den,l SitG to Triniclud- <br />Vo uno f,.F. D"'cl ,., B <br /> <br />1 <br />10 <br />25 <br />50 <br />100 <br />250 <br />333 <br />500 <br />1000 <br /> <br />6000. <br />25000 <br />36000 <br />1.6000 <br />5 gOOO <br />78000 <br />85000 <br />95000 <br />llJ.~JOO <br /> <br />2000 <br />7500 <br />9500 <br />l3000 <br />l5000 <br />20000 <br />21000 <br />23000 <br />27000 <br /> <br />800 <br />3300 <br />4300 <br />5300 <br />6/foo <br />8500 <br />9000 <br />9900 <br />11500 <br /> <br />5100 <br />21000 <br />274'00 <br />3/f200 <br />41000 <br />54800 <br />58200 <br />63400 <br />73600 <br /> <br />J <br /> <br />. <br /> <br />50 <br /> <br />