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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I' <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Table V-2 below summarizes the factors of safety detennined for each case. <br /> <br />Table V-2 <br />PROPOSED NEW STRUCTURE - STABll..ITY ANALYSIS <br /> <br /> <br />, - " '- , . <br />'OVERTtiRNINO'."'" <br />.,-, ",-.,-,. --.'-n-.'" ',,, ,n <br />, """"SAFET. Y ""'" <br />. "..,.- - ,-,,-,. <br />:::-.::.::.:,::":, :: -- - :.- ..;:'::::: <br />FACT()R(.....' <br /> <br />((,(, SLIDING .".,' <br />((".SAFETYi"" ' <br />.".,., - - .,. ,,,. <br />".',.'..'..FACtOR' <br /> <br />, MINIMUM <br />REQUIRED <br />, SAFETY <br />, ".,FACTOR <br /> <br />1.5/4.0 <br /> <br />USUAL-W/O ICE <br />USUAL- W/ICE <br /> <br />UNUSUAL <br /> <br />EXTREME <br /> <br />1.98 10.0 <br />1.42 2.3 <br />1.37 8.6 <br />1.81 4.8 <br /> <br />1.3/2.7 <br />1.111.3 <br /> <br />As shown in the table above, all cases examined indicate factors of safety greater than <br />required. <br /> <br />A.7. HYDROLOGIC AND HYDRAULIC EVALUATION <br /> <br />The hydrologic and hydraulic design references and hydrologic report are included in <br />Appendix F. A summary of the main features is summarized herein. <br /> <br />Hydrologic information was obtained from the current Corps of Engineer Study.! The <br />Discharge Frequency Relationships for the Cache La Poudre River in the vicinity of the <br />diversion structure are shown on Table V-3 . <br /> <br />Table V-3 <br />Maximum Flood Discharge at the <br />Diversion Structure <br /> <br />Freouencv (vear) <br />10 <br />25 <br />50 <br />100 <br />500 <br /> <br />Dischan!e (cfs) <br />6750 <br />9990 <br />13200 <br />17400 <br />32400 <br /> <br />'. Hydrologic Analysis of the Cache La Poudre River Basin, 1988 Update- Final Report, <br />U.S. Army Corps of Engineers, April 1988. <br /> <br />PAGE 9 . 0Dprer v <br />