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<br />IluratlonandRateolRlse <br />~~jor floods on any 01 the live streams covered in this <br />report could be produced by "cloudburst" typeril;nstorms. Thebasin <br />slopes are steop, the Iloodwaters would combine quickly nnd produce <br />1 I ash-type f I nod I ng . ~~a ny pil S t flood s on S T m T I a r S tro<Jms have been <br />descrlbedasadvilnclng.../lllsof..."ter. <br />Floods on ~nd8rson Gulch would peak Tn about i hour <br />after the storm and last up to about one-hall hour. Cnthestudy <br />reaches of the larger streams flood flows ...ould peak about fTve hours <br />after the storm, and generally last about I hour. High flo... and <br />stages could bo eKpected for 12 hours or moro. <br /> <br />24 July 1896 <br /> <br />Flood DescrlpT;ons <br />PaST floods on several small streams in The Denver area <br />are described below to further Illustrate the flood potential of the <br />strea~s covered In thTs report. <br /> <br />I <br />, <br />, <br />I <br />I <br />. <br /> <br />Rainandhail...hichlellln"sheets"forllhlllfhouror <br />more caused a flaSh llood do...n Tucker Gulch at Golden. One wonan <br />wasunabletoreachs.afetybetorebein9s...optfrcmhoryardbythe <br />onrUShing wave 01 floodwater. T...o residents 01 Golden ...ere drowned <br />when their cottage was swepta...ay by the flood...aters. High...ater <br />marks showed the flood had been 30 feat deep at One point...here It <br />passed throug~ a n3rro... gulch. Tucker Gulch Is just south of the <br />headwaters of Van Bibber Creek, whTch Is studied In this report. <br />This same storm aiso prodUCed serious flooding on Beaver Brook, ...hTch <br />joins Clear Creek about 6mileswestof Golden. <br /> <br />2-3 September 1938 <br />T~I s was a genera I storm over the front ranqe with "" 101ld- <br />bursts"occurring In IOCalizedaroas. Onesucharaa ;sabouf 15 <br />miles west of Denver near Genessee Mountain In the Bear Creek drainage <br />basIn. "Cloudbursts"occurredproducinglrom3to81121nchosot <br />r.. I nf.. II o"..r " parToo of trom 1/2 to 3 nours. M.:>unt V'l~non Cr'l'lk <br />naar MorrIson had a discharge of 9,230 cubic feet per seco~ from <br />a drainage area of 9.45-square mTles. Cold Spring Gulch, ...hlch <br />entors6e"rCreekabout5mllas...estofMQrrlson, had a peak discharge <br />of 9,000 cubic feet per second from a dr31nage area of only 4.48-squara <br />milas. Flood damage amounted to an estimated S648,OOO I rom soil <br />erosion ond damaqed buildings. <br />Anothar"cloudburst" In this same general storm produced <br />the record flood On South Boulder Creek Tn the vicinity 01 Boulder. <br /> <br />20 <br /> <br />27 <br />