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 21: Longitudinal profile of bed and modeled water surface profiles at

24-hour Camp. ....... ..... .................... ..................... ... .................................... .............. .................. 100

Figure 22: Cross sections and modeled water surface elevations at selected stations

at 24-hour Camp. ....... ............. .................................................................................................... 100

Figure 23: Cross sections and modeled water surface elevations at selected stations

at Above Pipeline....................................................................... ................................................. 101

Figure 24 (A-D): Cross sections and modeled water surface elevations at selected stations

at Wissiup Return........................................................................ ................................................ 102

Figure 24 (E-F): Cross sections and modeled water surface elevations at selected stations

at Wissiup Return...................................................................... .................................................. 103

Figure 25: Contour diagram showing the upstream extent of Green River backwater

on the Duchesne River. .................... ................... ..................................... ................... ................ 104

Figure 26: 1936 photograph showing the pre-avulsion bend near Wissiup Return and
the reach downstream to Grey Bluff. .......................................................................................... 105

Figure 27: 1948 photograph of the bend near Wissiup Return showing avulsion
developing across the bend. ................... ............................... ......................... ............................. 106

Figure 28: Graphs showing changes in channel width through time in each

longitudinal zone.................................................................... .... ................................................. 107

Figure 29: Graphs showing channel sinuosity through time in each longitudinal zone. ............ 108
Figure 30: Maps showing the 24-hour Camp site and the middle part of Zone 4

in 1936 and '1948.................................................................... .... .................................... ............. 109

Figure 31 (A-B): Graphs showing normalized area of erosion and deposition in
Zones 3 and 4 during six time intervals. ..................................................................................... 110

Figure 32: Graph showing normalized area of erosion and deposition in Zone 2 during

six time intervals. ......................................................................... ............................................... 110

Figure 33 (A-B): Graphs showing gravel activity in Zones 3 and 4 through time. ................... 111

Figure 34: Graph showing gravel activity in Zone 2 through time. ........................................... 111

Figure 35: Graph showing composite total gravel activity and gravel erosion activity
in Zones 2-4 through time. ..... .................................. ................................................... ................ 112

Figure 36: Diagram showing calculation for reach-scale gravel budgets using a
zero-transport downstream boundary. ...................................... .................................................. 112

Figure 37 (A-B): Graphs showing longitudinal pattern of gravel storage changes
between 1948 and 1961, and between 1961 and 1969................................................................ 113

Figure 38: Maps showing the middle part of Zone 3 in 1980 and 1987. .................................... 114

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