Laserfiche WebLink
<br /> <br />L <br /> <br />--- <br /> <br />CHAPTER IV <br /> <br />--I <br /> <br />HYDROLOGIC ANALYSIS <br /> <br />Flood flows on Coal Creek are oaused primarily by the rapid melting <br />of the snowpaok during the May-early June period. During this period, <br />precipitation Is generally observed tn be low at most stations within <br />the Gunnison River basin. Convective type thunderstorms ocour exten- <br />sively over the Gunnison River basin during the summer months. H~ver, <br />the areal extent of these thunderstorms is small and do not oause peak <br />flows in Coal Creek near Crested Butte. <br /> <br />Peak discharges for Coal Creek for the 10-, 50-, and SOD-year fre_ <br />quenoies were developed from a regionsl frequency analysis of stream <br />flow data and the results oompared to the values obtained from the Colo- <br />rado Water Conservation Board Teohnical Manual N~ber I. These dis- <br />charges are presented in figure 1. <br /> <br />OLD TOWN HALL DU~ING HIGH FLOWS IN COAL CREEK <br />ISTATION 50+001 <br /> <br />Ihe Soil Conse"'stion Servioe method was used for a comparison of <br />the four frequencIes. The results obtained from this method are similar <br />tothatobtatnedfromtheregtonalfT""quenoyanalysis. <br /> <br />- <br /> <br />Thehydroluglc <loalysLs portiun of this study was prepared by th" <br />Colorado Water Conservation Board and all supporting data is available <br />in the file of the Board. <br /> <br /> <br />EXAMPLE OF FJI,ILlNG CHANNEL 6ANKS <br />(STATION 45+501 <br /> <br />-e- <br /> <br />, <br />