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Transit Mix <br /> 12/30/16 <br /> Page 4 <br /> used in the analysis. Slope stability modeling results for the Long Term Pseudo-state condition <br /> is shown in Figure 2. <br /> Seismic Wash Fines <br /> Name:Embankment Name:Coarse Alluvium <br /> Model:Mohr-Coulomb Model:Mohr-Coulomb <br /> Unit Weight 130 pcf Unit Weight:135 pcf <br /> Cohesion':100 psf Cohesion':0 psf <br /> Phi':35° Phi':35° <br /> Name:Wash Fines Name:Pierre Shale <br /> Model:Mohr-Coulomb Model:Mohr-Coulomb <br /> Unit Weight_90 pcf Unit Weight:135 pcf Horz Seismic Coef.:0.05 <br /> Cohesion':0 psf Cohesion':500 psf <br /> Phi':10° Phi':30° <br /> Name:Foundation-Eolian <br /> Model:Idohr-Cculomb <br /> Unit Weight 125 pcf <br /> 5,E20 Cohesion':100 psf 44 <br /> Selo Phi%32° <br /> 5.eoo <br /> 5,790 <br /> 5.780 <br /> o s,ro <br /> s.76o <br /> W 5,750 <br /> 5,740 <br /> 5,730 <br /> 5,720 <br /> 5,710 " <br /> 5,700 <br /> 0 100 _ 230 300 <br /> Distance <br /> Figure 2. Slope Stability Analysis for Long Term Pseudo-static <br /> Colorado DRMS requires specific minimum safety factors for slope stability of embankment <br /> dams. Slope stability results based on modeling of the above conditions along with the <br /> associated minimum factors of safety according to the Colorado DRMS are provided in Table 2. <br /> Table 2. Summary of Slope Stability Findings <br /> Colorado Division of Reclamation, Mining, Computed <br /> Loading Condition and Safety (2016) Factor of <br /> Minimum FS Recommended' Safety <br /> I Long Term Steady State 1.5 1.69 <br /> Seepage <br /> II Pseudo-Static Seismic <br /> Loading 1.3 1.45 <br /> For critical structures modeled using generalized or assumed strength measurements. <br /> BRIERLEY <br /> ASSOCIATES <br /> Creating Space Underground <br />