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-~ , ~ , , i \ , 1'..'.0--. ''-~' - . \ ~',- Ik. 'L~'-;' ~l.l. ,<,: '. : .'.f ~. . " J f 1: L. i THE FLOOD AT PUEBLO. 27 ,Tune 3, and because the area inundated was so wide it was impossibk to make discharge measurements during the peak flow. A Her the flood the United States Geological Survey determined the maximum discharge as 103,000 second-feet. (See p. 20.) An idea of the unprecedented discharge of the river during the flood is given by the following table showing the available records or maximum discharge: Annual ma3Jimum discharge of A,rlcutr.sG.9 River at Pueblo for certain vear.'? Dis- II Year. Date. I Dis- charge. charge. Sream!- Secf}nd~ feet. feet, 4,530 1907.........,:,.... July 28. m......... 4,G-l 7660 1908. 0....,........0 Juno 1.'}-16........ 1,9? 0'520 1909... ............0 Aug. UL.......... 5, 39:100 19100.... ,....... ... Julle1............ S, 5,000 1911... '..0.0.... ,., JulyO............, 7,rx 3,440.. 1912. 0 ,.....0......0 June9.... ""'." 10,lX 3,750 1913:.. .............. July2.'L........... 7,80< 5,3&! Itl14. ............... Allg.3............ 7, 4,890 1915.. .............. 1une24........... 17,OC 6980 19160.. ............. June 17.'.. ........ 8, 10:700 1917. ..........,.... June 13........... 6, 8,320 1918,'.0.,..........0 lune2:L........__ 9, 6,100 1919., .............0 M.y30.....0...... 5 , 3,310 1920......,......,.. June 10...... ..... 4,& 6,460 1921., .............. Juno3.... ... ._... l():\ 4,880 Year. Date. 1885... ............. June 5. _.... ...... 1886..........,..... M.y29.o......,... 1887 ................ July 18...0........ 1894.....0...0....,. M.y 31.....,...... 1895.. ............. 'I' July 31............ 1896..........,..... Aug,180.......... 1897. _. ............. lune 2.... .... .._. 1898...........0.... July 13...,......., 1899... ... ........_. JWle 20.... ....... 1900...0.....0. ..... June 2... 0 ...,.... 1901......0......... May 21............ 1900... ............. Aug. 5... ,.,......, 1903.. _ ..._......... June 9. ... ......... 1004... ............. JW1C 15.... ....... 100.')... ...... ....... June 10.... ....... 1906.. 0 ............. June H... ........ 0,- lO, 8(J(), 000 ~. ~ ) 500 ~ 900 800 600 230 ~ 000 . , NOTE.-For 1901 and from 1909 t.o 1920 the discharge is that tor the ma:timum stage recorded. For the other years the maximum discharge is that'for the 24-h(lur period. - TOTAL DISCHARGI,. , 'the recording, gage at Pueblo was destroyed by the flood, and no : con~inuous record of river height exists. From the testimony of local i observers and from high-wllter marks it has been possible to ,con- struct a fairly complete and accurate hydrograph of the Arkansas at 'Pueblo from June 2 to I),(fig. 1). The most complete record of the river during the time of the principal rise' was that obtained hy MI'. B. Milton Stearns, assistant chief train dispatcher of the Denver & Rio Grande Railroad. As the water rose in the Union Depot the distance to the water surface from a flxed point was measured with 'L level rod and the time noted. This was done at frequent intervals from 9 p. m. on the 3d to '"{ a. m. on the 4th, the period during which the river was above the floor of the Union Depot. The reference points used were latercomiected to the city datum by level, and -the maximum stage was found to be at 4,t>84.75 fEEt above the sea. Tiie maximum stage at' th:e:ri~e~ g&gtf x~: (fie Main Street bridge ~~,s determined after 'thli' flood, from a well-defined water. mark on -t~e outside of the new'dity'hh1J,150 feet distant. This mark was found to be 24.66 feet above the zero 'of the gage, or 4,681.70 feet aboye the sea, 3.05 feet lower thim the maximum observed at the Unipn Depot.