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<br />
<br />Table of Contents (continued)
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<br />10, Summary and Conclusions ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, I 05
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<br />II, Recommendations """''''''''''''""""""",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,",,,,,,,,,,,,,,,..,,,, I 06
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<br />12, References Cited '"'' ,,,,,,,, '"'''' '" ,,,'.',,, ,,,,,,'.' "'''''' '''' """"" ,,,,,,,,,,,,,,,,,,,,,,,, '''''''''''' '" I 07
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<br />13, Appendices""""""""",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"''''',''''','''''''''''''',,'''''''''''''''''''' III
<br />13, I, Appendix A: Supporting Geomorphic Data """'''''''''''''''''''''''''''''''''''''''''''' III
<br />13.2, Appendix B: HEC-RAS Profiles .""""""""""",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, III
<br />13.3, Appendix C: HEC-RAS Hydraulic Output..."""""""""""""""",,,,,,,,,,,,,,,,, III
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<br />List of Fif!ures
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<br />Figure l.llndex Map of project Area, Upper Arkansas River Basin, Colorado"""""""" 3
<br />Figure 1,2 Project reach map showing geomorphic subreaches and incipient motion
<br />
<br />analysis sites (1M 1-6)",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,",,,,,,,,,,,,,,,,,,,,,,,,4
<br />
<br />Figure 3.1 Schematic diagram of water systems operations in the Upper Arkansas River
<br />Basin (URS, 1998) "",,"""'"'',,''''''''''''''' """"" " " "" "," "" " " " " " " "" " " " ,," " """" '" 10
<br />Figure 3.2 Mean daily discharge, Arkansas River at Leadville and Malta, 1976-1978" 14
<br />Figure 3.3 Mean daily discharge, Arkansas River at Leadville and Malta, 1979-1981 '" 15
<br />Figure 3,4 Mean daily discharge, Arkansas River at Leadville and Malta, 1982-1983 '" 16
<br />Figure 3.5 Turquoise Lake operations: Native inflow vs, releases to Lake Fork, April-
<br />July, 1992 and 1993 (BOR, 1999) """"""""""""""""""""",,,,,,,,,,,,,,,,,,,,,,,,,,,,.,,,,, 17
<br />Figure 3,6 Turquoise Lake operations: Native inflow vs, releases to Lake Fork, April-
<br />July, 1994 and 1995 (BOR, 1999) ""'" ""'"'' " "" "" " "" """"""'""'""""" '""",," "'" 18
<br />Figure 3,7 Turquoise Lake operations: Native inflow vs, releases to Lake Fork, April-
<br />July, 1997 and 1998 (BOR, 1999) """"""""""""'""""."""""""""",,,,,,,,,,,,,,,,,,,,,, 19
<br />Figure 3,8 Flow duration for Arkansas River at Leadville and Malta, 1976-1983""""" 20
<br />Figure 3,9 Flow duration for Arkansas River at Leadville and below Empire Gulch,
<br />
<br />1990-1993 "'"",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,""""",,,.,,,,,,,,,,,,,,,,,, 20
<br />Figure 3, I 0 Ratio of flow duration unit duration discharges upstream of downstream of
<br />Lake fork Creek, 1976-1983 and 1990-1993 """'" " "" "" " """ """. " "," "" " " "" " "''' 21
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<br />Figure 5, I Particle size gradations of sampled riffles, Upper Arkansas River """,""""" 34
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<br />Figure 6, I Change in channel sinuosity for project subreaches, 1939-1996 """."""",,,,39
<br />Figure 6,2 Change in channel width for project subreaches, 1939-1996""""."""""""",39
<br />Figure 6.3 Measured bankline migration rates, Arkansas River project reach"""""""" 42
<br />Figure 6,4 Measured bendway cutoff radius of curvature/width ratios, Arkansas River
<br />
<br />project reach"", """""",,, '"'''''''',''''' ,,,,,,,,,,,,.,, "" ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, "'" '"'' """ "." 42
<br />Figure 6.5 Number of days measured flows exceeded effective discharge: Arkansas
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<br />River at Malta """""""'",,,,,,,,,,,,,,,,,,,,,,,,,,,,,.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,""'''''''''''''''''''''' 45
<br />
<br />May 7, 1999
<br />
<br />Fluvial Geomorphological Assessment
<br />Upper Arkansas River
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