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<br />The hyd~oloalc condItIons at Gold~ith Gulch are such that lass <br />drastlcrasultswouldbaproducedthora. Tha slopes are less steep <br />and the dralnaga area only about one-half as large. <br />A major tlocd on Goldsmith Gulch cOlJld be axpected to <br />pe.aklnfrom Ito Ill2hoursandflocdflowswouldpersisttor lass <br />than I hour. On the Dutch Creak stream system flocd flows would <br />pe.ak InfrOln I to 3 hours aftar the storm began and lasttoraboot <br />I hour. <br /> <br /> I <br /> ! <br /> I Table 6 <br /> , <br /> I MAXIMUM SflORT OUAATlON <br /> PRECIPITATIO~S AT OE~VER1! <br />I <br />! Tl1OO(mln.) TIme (hrs.l <br />I 5 " 15 30 00 2 , 6 " 24-Y <br />i Preclp. (ins) ," 1.36 1.57 1.99 2.20 2.54 2.72 2.91 3.90 6.53 <br />! Month/Oey 7/14 7/14 7/25 7/25 8/23 8/23 8/23 8/23 8/23 5/21 <br />, <br /> 'w 1912 1912 !965 1965 1921 1921 1921 1921 1921 1876 <br /> <br /> Teble5 <br /> MAXIMUM 24 HOUR PRECIPITATIO~ <br /> GAGE AT STAPLETON INTERNATIONAL AIRPORT.!.! <br /> Preclpin.tlon PrecipItatIon <br /> ".,. (Inches) "'.. (Inches) <br />1970 6/11 3.16 1959 3/24-25 1.48 <br />1969 5/6-7 3.14 1958 5/7-8 1.98 <br />'96' 8/9-10 1.43 1957 5/8-9 3.29 <br />1967 4/13 3.25 195G 7/30-31 1.64 <br />1966 10/13-14 ,80 1955 9/18-19 \,71 <br />1965 6/4-5 2.77 1954 7/14 1.15 <br />"" 5/29-30 1.71 1953 5/16-17 1.76 <br />'96' 6/15-16 2.17 1952 5/23 1.50 <br />'962 117-8 1.02 1951 8/2-3 3.43 <br />1961 5/13 1.80 1950 4/15-16 2.n <br />'96" 10/17-18 1.59 1949 6/3-4 l.8! <br /> Max. of Period 3.43 <br /> <br />'I <br />_ Records are for Denver WB city gago from 1896 to I January 1935 and <br />for tha airport gage aftar that time. <br />YHistor1cal <br /> <br />Flood DescriptIons <br />Publishad accounts of floods in tha Denver area center <br />erOlJnd the South PlatteRlvar and Its larger trIbutaries and littla <br />specific mention can ba found of the smaller straams such as those <br />studied In this report. The magnitude ot historIc floods caused by <br />"cloudbursts" occurring In locallzedaraasare Illustratod by the <br />2-3SoptOOlbar 1938 flood in the BearCraekdrainllge b<lsinabout 15 <br />miles west of Oenver. Fr0ln3to81/21nchesofrainfalloccurrlld <br />over a perIod of from 1/2 to 3 nours. As the result of that r~lnfa'l <br />M""t Vernon Craek n6<lr, Morrison had II discharqe of 9,230cubicfaet <br />per second from d drdlndg~ ardd of 9.45 square miles. Cold Sprl"1 <br />~ICh, whIch enfers Bear Craek about 5 mllas west 01 Morrison, nad <br />a peak dischllrge of 9,000 cubic feet per second from a drainage area <br />of only 4.48 square miles. <br /> <br />'I <br />_ Preclpitetlon data 1aken from the U.S, Dapartment of Commerce, <br />National Qc....nlc and Atmospheric AdminIstration, "ClImatological <br />Data" publications for Colorado. <br /> <br />" <br /> <br />" <br />