Laserfiche WebLink
<br />I <br />I <br />I' <br />I <br />I <br />I. <br />I <br />t <br />II <br />I' <br />~ <br />I <br />I <br />r <br />I <br />f <br />l, <br /> <br />O~1787 <br /> <br />Table of Contents (continued) <br /> <br />10, Summary and Conclusions ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, I 05 <br /> <br />II, Recommendations """''''''''''''""""""",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,",,,,,,,,,,,,,,,..,,,, I 06 <br /> <br />12, References Cited '"'' ,,,,,,,, '"'''' '" ,,,'.',,, ,,,,,,'.' "'''''' '''' """"" ,,,,,,,,,,,,,,,,,,,,,,,, '''''''''''' '" I 07 <br /> <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 <br /> <br />List of Fif!ures <br /> <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 <br /> <br />Figure 5, I Particle size gradations of sampled riffles, Upper Arkansas River """,""""" 34 <br /> <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 <br /> <br />River at Malta """""""'",,,,,,,,,,,,,,,,,,,,,,,,,,,,,.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,""'''''''''''''''''''''' 45 <br /> <br />May 7, 1999 <br /> <br />Fluvial Geomorphological Assessment <br />Upper Arkansas River <br /> <br />Pageiii <br />