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<br />'l'HE FLOOD AT PUEBLO. <br /> <br />')'.1 <br />_-,'i <br /> <br />'rHE FLOOD BETWJoJEN CANON CITY AND PUEBLO, <br /> <br />From Canoll City to Florence, a t1iistanc(\ of i) miles by riyer, Lilt' <br />valley is comparatively ~arrow and was little <lamuged by the Jlood, <br />The maximum discharge increased from :3,740 second-feet at CanOl} <br />City to 9,000 second-feet at Florence.8 The tributary streams in thic <br />section-Oil, Chundler, Sixmile, Oak, and Coal creeks-lie partly <br />within the upper of the two areas of intense rainfaH but did not havc <br />as high unit discharges as the tributaries nearer Pueblo. (See table <br />of maximum discharge, pp. 21-22.) <br />Between Florence and the mouth of Bea,ver Creek, a distanee of <br />10 miles, the discharge must have ,increased considerably, as the <br />principal tributaries, Eig-htmile, Brush Hollow, and Hard?crabble <br />creeks, had their flood crests between 7.30 and 8.30 p. m. on .Junc :3, <br />about the time the river was highest at Florence. At Portla]](l, :> <br />miles below Florence, the highest water occurred at 11 p. m" when <br />the water was 4 feet (1eep in the Denver &: Rio Grande Railroad <br />station., The water started to fall here at 11..30 p. m. and in an hOlll' <br />had fallen 3t feet. <br />From Beaver Creek to Turkey Creek, a distance of 11 miles, th(\ <br />maximum stage during the evening of .June 3 could not have in~ <br />creased very greatly, as the tributary streams, Rush and Red creek; <br />and Ritchie and Fred Rohr gulches, 'nad their floor1 crests about .5 <br />p. m., several hours before the passage of the main flood crest in thr. <br />river. In this stretch the gTeatest damage was cansed not by the <br />flood of June 3 but by that of June 5 due to the failure of the <br />Schaeffer reservoir on Beaver Creek (p. 17). (See PI. V, E.) <br />Between Turkey Creek and Pueblo the discharge of the river in- <br />creased very rapidly, as this was the section which received the maxi- <br />mum run-off from the areas of intpnse l'ainfnll. <br /> <br />THE FI~OOD AT I'UEBI,O. <br /> <br />GENERAL Jo'EATURES. <br /> <br />Pueblo, .the second city in size in the State, is on .Arkansas River <br />a few miles east of the foothill region and just above the mouth of <br />.. Fountain Creek. The 1920 census gave its population as 42,008, It <br />is an important railroad center, being on the lines of the Atchison, <br />Topeka & Santa Fe, Denver & Rio Grande V\T estern, Missouri <br />Pacific, and Colorado l~ Southern railways. It is also an important <br />m:umfacturing center, the steel mills, smelters, r'ailroad car shops, <br /> <br />. F,n!tln~prs of the Deny~r & Rio Grande Railroad Co, measur'ed a cross section of tIll' <br />rivpr :JOO feet below Pikes P~nk Ay~nlle bridgennd Rlso measured the slope from a point <br />1,100 ff'('t upstream fo n point 1,100 feet downstream. The slope was found to be 0.003], <br />awl the dischnrg{' was comrHltf'd as 9.000 sf'conrl~fpfl,t <br />