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<br />30 THE ARKANSAS RIVER FLOOD OF JUNJo; 3-5, 1!l21.
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<br />THE FLOOD :BELOW PUEBLO.
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<br />GENERAL FEATURES.
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<br />Practicnlly all gnges on the river between Pueblo and the Kansas
<br />line were destroyed by the flood, mnking it impossible to obtain rec-
<br />ords of maximum discharge in the rebrular manner. 'Data reO'ardinO'
<br />flood discharges were obtained chiefly from the State en~neer~
<br />, office for different points in the Arkansas Valley. ,
<br />The stages and discharges of Arknnsns River at La .Junta during
<br />the passage of the flood crest are given in the following table:
<br />
<br />stnVI'S nllll cli,se/r-m:ves af ArT.:nl1,'i1.' lUreI' at VI .{,mll/, .{/llIt, 1-,i, 1921.
<br />
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<br /> Gngo Approxi- G.~ A pproxl-
<br />Time. hoight. mate Time. heig t. mate
<br /> discharge. discharge.
<br /> S<<tmd- S<C07ld-
<br /> Fro. I<d. F,d. ful.
<br />Iune 4, 7a~m.................. 3.65 3,000 Jnno 4,3.15 p. m... ........ 17.7 200,000
<br />12.30p. m_......... 4.35 6,400 4 p. m............'. 16.8 162,000
<br />l.30p. m........... 4. 75 9,000 9 p. m.............. 15.1 125,000
<br />2~. m.............. 5.0 11,400 Juno 5,4 B. moO.", ....un. 11.15 69,000
<br />2. Op. m........... 16.8 tG2.OCO 2 p. m.............. 7.4 21,000
<br />3 p. m.............. 17.7 tl 200,000
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<br />S-'f tl(;!',
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<br />&, ff(~~
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<br />f1, The State engineer'g omc-c mro.orored :i. cr~ section or tho rlvr.r Bt tho hror1 or tho }o'ort Lyon co.ual, 3
<br />mites west of La Junta, and the slope oCt-he rl\'cr(rom a. point 2.7tXJ feet upstrrom toa point 2,400 leet down..
<br />stream. Tho meansJupo was Cound to be 0.001.'1, l1ud tho dischnrgl) W:1..' ~omplltcd ns 2011,000 second-Cect.
<br />
<br />The increase in the mnximum flood flow from 103,000 second-feet
<br />at Pueblo to 200,000 second-feet at La ,} unta. was dne to the discharge
<br />of the intervening tributaries, St. Charles River and Fountain, Salt,
<br />nnd Chico creeks, all of which were affected by the heavy rainfall.
<br />The table on page 22 shows the quantity and npproximate time of the
<br />: maximum discharges of these tributnries, obtained from local rem-
<br />dents~
<br />The crest flow of the river was increased chiefly by the flood from
<br />St. Charles River, which reached its crest within nn hour of the ar-
<br />, rival of the peak flow from Pueblo. Although Fountain Creek did not
<br />reach its maximum until about 3 n. m. June 4. or three hours after the
<br />peak at Pueblo, it is certain thnt' nt the tim~ of the Pueblo penk the
<br />Fountain Creek discharge waS at least 1fi,000 or 20,000 second~feet.
<br />Salt Creek also contributed ~2,OOO second-feet to the peak flow, much
<br />of it from the St. Charles River basin, a1thoUg~l its own peak did'
<br />not occur until two hours later.
<br />Information regarding the flood between La Junta and Holly is
<br />very meager. but the available data are summarized below. '
<br />The ,Yeathel' Bureau gage at Fort Lyon, :\ miles east of Las Ani-
<br />mas, showed the maximum stage to be 15 feet, at 11 p. m. June 4.
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