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<br />." .,~ <br /> <br />000079 <br /> <br />,:"-:/:: <br /> <br />., <br /> <br />: ~" ! <br />:::,'~',,7, <br />.~. -."[ <br /> <br />(3) Canon City to Pueblo - The travel time of the <br />peak flow vas determined to be approximately 7.5 hours. A 2-hour <br />routing period vas chosen and resulted in the use of 8 tatum routing <br />steeps. <br /> <br />\ ..':..~ <br /> <br />":_,/,;- <br />.~. . ':','~., <br /> <br />....- <br /> <br />'.':' <br /> <br />b. Below Pueblo Dam. For forecasting flood runoff, see <br />paragraphs 4-03 and 4-rJ4 of the Haster Regulation Hanual. The <br />travel time for releases from the dam to the control point, the Avon- <br />dale gage, is between 4 and 7 hours, see Plate 4-5. Also, for <br />additional ssfety it is assumed that the reservoir release is not <br />attenuated. For additional information, see Section III of Reservoir <br />Regulation Manusl for John Martin Reservoir. <br /> <br />." <br /> <br />6-rJ3. Conservation Purpose Forecasts. <br /> <br />a. Requirement. Conservation forecasts are required to <br />predict the availability of native and transmountain water for <br />irrigatio~ hydroelectric, municipal and industrial, recrestio~and <br />fish and wildlife uses. <br /> <br />.. <br /> b. Method. <br /> forecssts by using <br /> precipitstion, and <br /> of water available <br />',' <br /> <br />The Bureau of Reclamation makes conservstion <br />a multiple regression analysis based on snowpack, <br />soil moisture content to predict the quantity <br />to the Fryingpan-Arkansaa Proj ec t. <br /> <br />6-rJ4. Long-Rsnge Forecasts. A foreknowledge of the water volume <br />to he handled would fscilitate the regulatory decisions to be maue. <br />However, reliable methods for long-range runoff forecasts are not <br />presently available. The Bureau of Reclamation does prepare an <br />"Annual Operating Plan" for the Fryingpan-Arkans88 Project which <br />describes how the project was operated the past yesr and how it is <br />planned to operate in the coming year. The planned operation is <br />based On a statistical snslysis of the hiatorical water supply data. <br /> <br />6-2 <br /> <br />.,.' <br /> <br />.'.'.. ,~;:;:':/~.:~ti;~<b:,..,:-:: ": <br /> <br />:;.:.'~/:;:~t)::..", ' <br />, ..:.~..:. .....:'- '. .. <br /> <br />;":,:: <br /> <br />:~ , <br /> <br />.' <br />~ <br /> <br />,-::. <br /> <br />'.;j <br /> <br />~. 1 <br /> <br />"', ;'-' <br />