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<br />. <br /> <br />0:18::'1 <br /> <br />1flble_l0 <br /> <br /> <br />RD.infnll - Runoff Relation <br /> <br />!'fRainfllll <br />~gto of' Flood I Inches <br /> <br />Purgatoire River <br /> <br />Sept. 29-30, 1904 <br />J.une 7, 1923 <br />June 20, 1923 <br />.July 10, 1923 <br />August 8, 1923 <br />August 11-l2,1923 <br />August 23, 1923 <br />July 22, 1925 <br />,Tuly 29, 1927 <br />MQY lO, 1928 <br />August l7, 1928 <br />May 30, 1929 <br />July 30, 1930 <br />July 3l, 1931 <br /> <br />. <br /> <br />If*li'lood Runoff <br />Acre-Feet <br /> <br />Runoff - Inchoi) <br />De th <br /> <br />at Trinidad, Colorado <br /> <br />L~.25 <br />1.55 <br />1.65 <br />0.64 <br />0.52 <br />2.1;~ <br />0.89 <br />2.50 <br />1.00 <br />1. 70 <br />0.44 <br />1.70 <br />0.78 <br />0.38 <br /> <br />39,300 <br />1,443 <br />2 ;1+00 <br />776 <br />l,081 <br />2,806 <br />1,l83 <br />lO,lOO <br />5,268 <br />1,680 <br />3,315 <br />3,932 <br />1,619 <br />l,467 <br /> <br />0.99 <br />0.1;2 <br />0.20 <br />0.06 <br />0.04 <br />0.11 <br />0.10 <br />0.75 <br />0.44 <br />0.14. <br />0.13 <br />0.33 <br />0.1/+ <br />0.06 <br /> <br />Arkansas Rivor c,t Pueblo, Colorado <br /> <br />;HHfJune 3-4, 1921 <br />,HHHf" 3-5, 1921 <br /> <br />lO.40 <br />6.86 <br /> <br />50,000 <br />83,000 <br /> <br />3.10 <br />1.79 <br /> <br />'X' Maximur;l 2-day recorded rainfall. <br />** Estim'lted runoff from maximum 2-dny rocordod rocinfrcl1. <br />')HHl- II II II 300 square miles. <br />7{.~~*~~ II 11 II 870 JI II <br /> <br />_'!:lliL Hood .tl,vdrogrnph <br /> <br />1'he hydrogrnph c,dopted for the rlr,ximUJa flood shOwn on <br /> <br />drmfing No. 256-D.-1l5 is based on !1 flood period simi.lar to that of <br /> <br />tho 1904 flood, doscribod in )'iater Supply Paper 147. The resulting <br /> <br />peak dischargo is 155,000 second-feet for a volume of' l03,000 ncre- <br /> <br />focot. The dcorived hydrogrnph is applicable to 1'10'/ at the dam site <br /> <br />. <br /> <br />46 <br />