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

LIST OF FIGURES

Figure 1: Map of Uinta Basin showing the location of the lower Duchesne River. ....................... 8

Figure 2: Map of the study area showing numbered subreaches, locations of
detailed study sites, and landmarks................... ..... ....... ... .............................................. ......... ........ 9

Figure 3: Graph comparing daily discharge at the Myton and Randlett gaging stations.............. 37

Figure 4: Graph comparing observed and predicted daily discharge values for the

Randlett gage. ...................... ...... .................................................................... ... ............................ 37

Figure 5: Graph showing suspended sediment rating curves for rising and falling limb

concentrations. ..................... ......................................................................................................... 38

Figure 6: 1948 photograph of subreach 2 showing avulsion in progress. .................................... 39
Figure 7: Diagram of false sliver generated by displacement error of rectangular

polygons. .............................. ............................................... ............................ .............................. 40

Figure 8: Longitudinal profile of bank and gravel deposit elevations. ......................................... 40
Figure 9: Photomap ofthe 24-hr Camp detailed site indicating cross section locations

and main chutes..................... ........................................................................... ............................. 41

Figure 10: Photomap of the Above Pipeline detailed site indicating cross section locations

and main chutes.................... ............................................... .... ..... ................................................. 41

Figure II: Photomap of the Wissiup Return detailed site indicating cross section locations

and main chutes..................... ... ..................................................................................................... 42

Figure 12: Graphs showing Manning's n calibration values for each station and

discharge. ................................ ...................................................................................................... 43

Figure 13: Graph showing the total annual flow of the Duchesne River near Randlett. ..............96

Figure 14: Map ofthe lower Duchesne River showing longitudinal zones,
numbered subreaches, locations of detailed study sites, and landmarks. ..................................... 96

Figure 15: Longitudinal Profile of the Duchesne River Channel. ................................................ 97

Figure 16: Map showing the distribution ofterrace surfaces in the study area. ........................... 97

Figure 17: Cross section showing relative elevations of high terrace, cottonwood terrace,
floodplain, high bars, and channel in Zone 3................................................................................ 98

Figure 18: Cross section showing relative elevations of tamarisk terrace,
bar/floodplain bench, and channel at site 4 in Zone lb. ...............................................................98

Figure 19: Surface layer particle size distributions.......................................................................99

Figure 20: Subsurface particle size distributions. ......................................................................... 99

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