Laserfiche WebLink
<br />. <br /> <br />34 <br /> <br />THE ARKANSAS RIVER FLOOD OF JUNE 3-5, 1921. <br /> <br />- ---- <br /> <br />Although l~ttle if any of the St.-Charles drainage basin lies within <br />the area of llltensest rainfall, it was subject to very heavy rain <br />w.hich began during the evening of June 3, and lasted through th~ <br />mght. The crest flow occurred about 1a. m. June 4 and lasted for <br />an hour. From measurements of cross section and slope this dis- <br />charge was estimated to be 71,800 second-feet. <br /> <br />Estimated dischargc of St. Charlc., River, .Tlme 3-7, 1921. <br /> <br />. <br /> <br />Time. <br /> <br />Stage. <br /> <br />Approxi. <br />mate <br />dlscharg.. <br /> <br />J.ne 3, 4.lJO p. m..... .................. ....... Beror. nood.. .... .......... ...... . S.c.-fl. 50 <br />Jan. 4, 1.10a.m.............................. Cr..t....................... . .. ........ 71 800 <br />2.30a.m.............................. SUghtlybolowcrest.. .. .- .. ............. &J'OCJJ <br />4.00 a. m.............................. 3 rcot below crest.....:..:.: :::::::::::::::::\ 34' OCJJ <br />9.00 a. m........................ ...... 6 rc.t below crest............... 7' 500 <br />6.00 p. m.............................. 8 r""t below eresL............. :::::: :::: ::: 4' OCJJ <br />8.30 p. m.............................. Started to ris....:........................... . .......:... <br />lun.5,8.00a.m.............................. ................................... I lOCJJ <br />. ~~J'i.:::::::::::: :::::: :::: :::::::c::::::::::::: :::::::::::: ::::::::: :::::::::: l:~ <br />}un. 6, 6.00 p. m... ...........................1..............................................\ l,OCJJ <br />un. 7, Noon.. .............. ........ ........+........... ............... ............ ....... 350 <br /> <br />Th. totaldlscharg. was abont 6O,OCJJ acre-r""t. <br /> <br />CHICO CREEK. <br /> <br />The area drained by Chico Creek joins that of Fountain Creek <br />on the 'west. Chico Creek rises in the central part of El Paso <br />County, Hi miles east of Colorado Springs, and flows southward to the <br />Arkansas, which it joins H miles cast of Pueblo. Its principal <br />tributary, Black Squirrel Creck, enlers Chico Creek a few miles <br />above the mouth. Throughout t.he uppcr half of its course the <br />creek has an average fall of G;) feet to the mile; in the lower half <br />the fall is 29 feet to the mile. The clrainage basin lies wholly within <br />the area of the Great Plains and has a rolling topography. On ac- <br />count of the small normal rainfall, Chico Creek carries little water <br />except after heavy rains. The total drainage area is 750 square <br />miles. <br />No information regarding rainfall in this basin during the flood <br />is available, but as Chico Creek drains an area adjacent to that of <br />Fountain Creek the general storm probably extended over its basin <br />also. <br />The State engineer's office measured the cross section and slope of <br />Chico Creek 'near the mouth and determined the crest discharge to <br />be 28,600 second-feet. <br />