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<br />30 THE ARKANSAS RIVER :FLOOD OF JUNE a-5, 1921.
<br />
<br />THE FLOOD BBLOW PUEBLO.
<br />
<br />GENEHAL .~'EATURES,
<br />
<br />Practically all gages on the river between Pueblo and the Kansas
<br />line were destroyed by the flood, making it impossible to obtain rec...
<br />ords of maximum discharge in the regular manner. 'Data regarding
<br />flood discharges were obtained chiefly from the State engineer's
<br />, office for different points in the Arkansas Valley.
<br />The stages and discharges of Arkansas River at La ,Junta during
<br />the passage of the flood crest are given in the following table:
<br />
<br />Stages (II1<Z disella-l'geS of A.t'kllll"{l,~ Hirer lit VI .r""IfI, .'"1''' 1,-5, 1921.
<br />
<br />J
<br />I
<br />
<br /> Gn~o Appr
<br />Time. hoight. mnl
<br /> dischn
<br /> -
<br /> Becon
<br /> Fee/. fat.
<br />1une 4, 7 a~ m ..................... 3.6., 3
<br />12.30p. m........... 4.35 6
<br />1.30 p. m............ 4.75 9
<br />2~. m............... 5.0 II
<br />2,Op,m........... 16.8 162
<br />3 p. m............... 17.7 " 200
<br />
<br />oxi-
<br />c Tim c.
<br />rgo.
<br />
<br />Gaga
<br />height.
<br />
<br />ApproxI-
<br />mate
<br />discharge.
<br />
<br />d-
<br />
<br />,0!'1O Inoe4,3.15p.m...uuo._.
<br />,400 4 p. m.............:.
<br />,000 9 p. m.. .............
<br />,400 Juno 5, 48.m........u....
<br />,om 2 p, m..............
<br />,000
<br />
<br />Fcct.
<br />17, 7
<br />16,8
<br />15,1
<br />11.1"
<br />7.4
<br />
<br />SIXond.
<br />fe<lo
<br />200,000
<br />162,000
<br />125,000 c'
<br />~,ooo J,-'"{; Ii"'.
<br />"" ..
<br />21,000 l'l'i,'~
<br />
<br />B The State cnginC'Cr's offi('c mrosufC'd n Crffi'3 section of tile rlYer at tho hend of tile ....ort I...yon canal, 3
<br />miles west oC La Junt.a, and theslopo off.he river from a point 2,700 feet upstrc..'lm to a point 2,400 loot down-
<br />stream. Tho mean sJupe was found to br. O.IJOl.'l, and the dischargo W:\..<; cnmplItcd as 20l),OOO second-feet.
<br />
<br />The increase in the maximum flood flow from 103,000 second-feet
<br />at Pueblo to 200,000 second-feet at La .Junta, was dlle to the discharge
<br />of the intervening tributaries, St. Charles River and Fountain, Salt,
<br />and Chico creeks, all of which were affected by the heavy rainfall.
<br />The table on page 22 shows the quantity and approximate time of the
<br />; maximum discharges of these tributaries, obtained from local resi-
<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 an hour of the ar-
<br />rival of the peak flow from Pueblo. Although Fountain Creek did not
<br />,reach its maximum until about 3 a. m, June 4, or three hours after the
<br />peak at Pueblo, it is certain that' at the time of the Pueblo peak the
<br />Fountain Creek discharge was at least 15,000 or 20,000 second-feet,
<br />Salt Creek also contributed ~2,000 second-fret to the peak flow, much
<br />of it from the St,. Charles River basin, although 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 'Weather Bureau gage at Fort Lyon, :~ miles east of Las Ani-
<br />mas, showed the maximum stage to he 15 feet, at 11 p. m. June 4.
<br />
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