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<br />30 THE ARKANSAS RIVER l!"LOOD OF JUNE a-5, 1921.
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<br />THE FLOOD BELOW PUEBLO,
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<br />GENERAL FEATURES.
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<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 refTardinfT
<br />flood discharges were obtained chiefly from the State en~eer~
<br />, office for different points in the Arkanslls Valley. ,
<br />The stages and discharges of Arkansas River at La .J unta during
<br />the passage of the flood crest are given in the following table:
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<br />Stage8 o",Z (1i.8ch-ar;ge8 of ArT';(/Il~/.! JUt'CI' at Lit .I,,,,t,,, .II/IIC 4-5, 192t.
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<br /> Gogo Approxi- Ga~ Approxl-
<br />Time. height. mate Time. helg t, mate
<br /> diseharge. discharge.
<br /> 8<<Dn4- 8tC/J1ld.
<br /> Ptt/.. ftd. Ptt/.. ftt/.,
<br />lime 4, 7 B. m .................. 3.65 3,050 J'I1Da 4, 3.15 p. m,."....... 17,7 200,000
<br />12.30 p. m..._...... 4.35 6,400 4 p. m....,.......;. 16.8 162,000
<br />1.30;>. m.........., 4. 75 9,000 9 p. m..,.... ....... 15.1 125,000
<br />2 R' m.............. 5.0 11,400 J'una 5.4 a, m..,.. ...,..... 11.15 69,000
<br />2. Op. m........... 16.8 162.or.O 2 p. m,.. ,...... ,.., 7.4 21,000
<br />3 p. m.............. 17.7 11 2fX)t 000
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<br />, A The State endneer's omec m.....o;urr<l Ii er""" .ootion or the river at tho h"",1 or tho ~'ort Lyon callal, 3
<br />mil.. west or La Junta, and the slopo oHhe river rrom a point 2,71l0 reet upstrcnm to" point 2,400 leet down.
<br />stream, Tho mean slope was round to be O,lllll~, alld tho dlscharg>> w", computed lIS 200,000 second.leot.
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<br />TIle increase in the maximum flood f10\V from 103,000 second-feet
<br />at Pueblo to 200,000 second-feet at La .Junta was due to the discharge
<br />of the interyening 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 al'-
<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 th~
<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 R2,000 second-feet to the peak flow, much
<br />of it from the St. Charles River basin, although its own peak did 1
<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, R miles east of Las Am-
<br />mas, showed the maximum stage to be 15 feet, at 11 p. m. June 4.
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