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<br />Draft Fmal Completion Report to UDWR for Contract #93-1070, Amendment 3 <br /> <br />this study, the flows of concern: <br /> <br /> <br />1) re-work deposits but do not substantially change channel width; and <br /> <br />2) include high flow events that significantly alter within-channel morphology. <br /> <br />Surveys of monumented cross sections and detailed bar topography within the 1.5-1an reach conducted over a <br /> <br />2-yr period were used to characterize river response to the passage of the annual snowmelt flood and subsequent base <br /> <br /> <br />flows. A flow and sediment transport model (Andrews and Nelson, 1989) was modified and applied to the 15-1an <br /> <br /> <br />reach. The model was used to characterize channel response, such as bed scour and bar fill, to flood passage. <br /> <br />21 <br /> <br />Reach Scale <br /> <br />The discharges that form habitats impact the whole river system. While it was impossible to intensively study <br /> <br />reaches that were 10's of kilometers in length. the results from work at the smaller scales should be validated on the <br /> <br /> <br />larger reach scale. Reach-scale investigations quantified the overall change of within-channel form and the area of <br /> <br /> <br />available habitat in response to floods and base flows. <br /> <br /> <br />Interpreted videography data and a geographic information system (GIS) were used to discern large scale <br /> <br />changes in habitat availability, habitat formation. and channel response. These results were compared to the smaller <br /> <br />scale fish habitat and channel geomorphology findings. <br />