9493

• UCREFRP Catalog Number: 9493
• Author: Gaeuman, D., P. R. Wilcock and J. C. Schmidt.
• Title: High Flow Requirements for Channel and Habitat Maintenance of the Lower Duchesne River between Randlett and Ouray, Utah.
• USFW Year: 2003.
• USFW - Doc Type: \
• Copyright Material: NO

FINAL REPORT, November 2003
High-jlow Requirements for the Duchesne River

Figure 39: Diagram of cutbank stratigraphy at the edge ofthe pre-avulsion channel

near Wissiup Return............................. .... ................................................... ................................ 115

Figure 40: Diagram of stratigraphy in a pit in the tamarisk terrace near

Wissiup Return................................ ................................................................ ............................ 115

Figure 41: A portion of the flow duration curve for eight years with total annual
channel-forming discharges between 3,000 ft3/s-days and 10,000 ft3/s-days.
Magnitude/duration combinations defining the proposed channel-forming hydrograph
for wet years are indicated. .......................................................... ........................................ ....... 127

Figure 42: Cumulative sediment transport curves for extremely wet years (years with
total annual flow exceeding the 90th percentile), wet years (years with total annual flow
between the 60th and 90th percentiles), and normal years (years with total annual flow
between the 30th and 60th percentiles). ........................................................................................ 127

Figure 43: Water-sediment efficiency curve for normal years. .................................................. 128

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