Laserfiche WebLink
<br />peak discharges. Discharqes from station values at Ignacio were <br />adopted for the study of Ignacio. <br /> <br />For Bayfield, flows contributed from the drainage area downstream <br /> <br /> <br />from the Reservoir were computed assuming the flow is proportional <br /> <br /> <br />to the drainage area to the power as obtained from the regression <br /> <br /> <br />for the Upper San Juan River Basin. The flow thus obtained plus <br /> <br /> <br />the discharge released from the reservoir yielded the peak dis- <br /> <br /> <br />charge for each selected recurrence interval. The frequency- <br /> <br /> <br />discharge curves for Ignacio, Bayfield and Vallecito Reservoir <br /> <br />operations are shown in Figure 11. <br /> <br />Peak discharges used in hydraulic computations at various locations <br />are listed in Table 5. <br /> <br />Comments <br /> <br /> <br />Hydrologic data presented in this report are based on historical <br /> <br /> <br />data which include sediment and debris normally associated with <br /> <br /> <br />flood flows. Unusual flood situations, such as mud flows and large <br /> <br /> <br />amounts of debris that would increase the severity of floods, cannot <br /> <br /> <br />be identified without extensive studies. A flood of this nature <br /> <br /> <br />will probably exceed flood magnitudes presented in this report. <br /> <br /> <br />Flood flows in excess of lOO-year recurrence interval presented in <br /> <br /> <br />this report are our best estimate according to information avail- <br /> <br /> <br />able. If any agency or individual wishes to use the data developed <br /> <br /> <br />for this report, it would be beneficial if the agency or individual <br /> <br /> <br />contacted the Colorado Water Conservation Board to discuss the data <br /> <br /> <br />limitations. <br /> <br />-20- <br />