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FLOOD03597
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FLOOD03597
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Last modified
1/25/2010 6:27:45 PM
Creation date
10/4/2006 11:53:55 PM
Metadata
Fields
Template:
Floodplain Documents
County
Pueblo
Community
Pueblo
Stream Name
Goodnight Arroyo, Dry Creek, Wild Horse Creek
Basin
Arkansas
Title
Floodplain Information Report
Date
4/1/1969
Prepared For
Pueblo County
Prepared By
US Army Corps of Engineers
Contract/PO #
&&
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />for estim~ting the flood potential of strs~ms. These procedures <br />ere used in determining ths Stendard Project Flood for e particu- <br />lar strsam. The Standard Project flo~d is defined as the flood <br />thet can be e~pected from the most Severe co~binution of ~et80r_ <br />010gica1 end hydrological conditions that is considered reaeonably <br />characteristic of the ~eographical area in whi..h the drainage <br />basin is looated, exdlJl:ling extre!'1ely rere combinations. <br />On ~ild Horse_Dry Creek, the estimated Standard <br />Project Flood reinfall WeS determined to be: 0.62 inches after <br />a hours;-g.32 inches efhr 14 hours; and 10.60 inches after 23 <br />hours. Dry Creek and Goodnight Arroyo Standard Project flood <br />rein fall weS eeti~ated to be: 1.03 inches in 9 hours; 9.05 inches <br />in 12 hour" and 11.20 inchea in 20 hours. <br />At the mouth and upper limit of the study teach, <br />respectively, on each stream, the Standard Project flood peak <br />di5cherg~ vary f.8m 49,45C to 2C,400 cubic feet por second on <br />~ild Horse-Dry Creek; from 3,740 to 3,200 cubic feet per second <br />on Dry Creek; and from 4,070 to 3,700 cubic feet per second on <br />Goodnight Arroyo. Peakd!.schargesof thestand"rdProjedFlood8 <br />on ~11d Horee-Dry Creek, Dry Creek. and Goodnight Arroyo at spec- <br />ified river mile locations ere shown in Teble g. <br /> <br />TABLE9 <br /> <br />STANDARD PROJECT fLOOD <br /> <br />PEAK DISCHARGES <br /> <br />Strs"m <br /> <br />Loca~ion <br /> <br />r~il e <br />Above <br />~ <br /> <br />Wild Horee-Dry <br />Creek <br /> <br />D. & R.G.~. bridge <br />0.7Smileebelow <br />U.s. Highwey50 <br /> <br />0.33 <br />2.55 <br /> <br />Dry Creek <br /> <br />Mouth <br />AboutD.lO",ile <br />upstream of U.S. <br />Hwy.50Bypasa <br /> <br />0.07 <br />1.63 <br /> <br />Goodnight <br />Arroyo <br /> <br />Mouth <br />0.40mileeup_ <br />stream of Red <br />Creek Road <br /> <br />0.00 <br />2.07 <br /> <br />Hazards of Great Floode <br /> <br />Drllinagc <br />Area <br />sq.miles <br /> <br />Discharoe <br />c.f.s. <br /> <br />82.8 49,451J <br />69.6 43.650 <br />;., 3,740 <br />'.1 3,220 <br /> <br />;., <br />5.1 <br /> <br />4,070 <br />3,750 <br /> <br />The a",o,mt and extent of dam~ge coused by any fiood <br />depends in general upon ho~ ~~ch area ie flooded, the height of <br />flooding, <he velocity of flew. the r~te of rise. and th8 duration <br />of flooding. <br /> <br />Are~~ flOOded and Keiohto of floodi~q <br />Ths areas along Wild Horse_Dry Cree~, Dry Creek. ~nu <br />Goodnight Arroyo flooded by thH Sb,nd"rd Proj~d Flood ~nd th~ <br />Intermedi~te Regional flood are shown on Plates 3 through 7. <br />Depths of flow Can be estim~ted fr~ tho water surface profiles <br />shuwn on PI etas 8 thruugh 11. <br />The profihs for th.. stre~OlS ~'ete cO'"'l'~ted by usi~9 <br />"troam characteristic<). topographic maps, and v~lley CrO~" ~ectic"s <br />~'hich were surveyed in :>1~y 19~8. The overflow nre"g and slev8tiOrls <br />shnwn on thp- above rEfpren~ed rlatR~ h~ve been ~eter~ined with ~n <br />accuracy consistent with the purposes oi this study and t~e "ccur~cy <br />"I' lhe b~~ic dat~. <br /> <br />fre~u"nGY <br />It i~ iMpractical to ~s6ign a frequency to the Stan- <br />da~d Project flOOd. The OCCurrenCe of such a flood would be a <br />rare avent; however, it could occur in ~ny year. <br /> <br />P08~ible Lar~6r flOOds <br />Floods l~rger than the St~ndard Project Flood a~e <br />pcssibls; however, the combination of f~ctors necessary to pro- <br />duce such floods would seldom occur. The consideration of floods <br />of this ~agnitud" is more important in some ~reos th~n in others, <br />~LJt tr.ey shO'~ld b.. considered in any study. <br /> <br />" <br /> <br />" <br />
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