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BRIERLEY <br />ASSOCIATES <br />Creating Space Underground <br />Project: Rigden Reservoir and Port of Entry Pit <br />Slope Stability Analysis: Staged Rapid Draw Down <br />Critical Cross Section Location: County Road 40 Right -of -Way <br />Method: Spencer <br />Material Properties <br />Unit <br />Weight <br />pcf <br />Effective <br />Cohesion <br />psf <br />Effective Phi <br />(degrees) <br />Total <br />Cohesion <br />sf <br />Total Phi <br />(degrees) <br />Fine Alluvium <br />112 <br />100 <br />28 <br />0 <br />0 <br />Coarse Alluvium <br />130 <br />0 <br />35 <br />0 <br />0 <br />Compacted Clay <br />125 <br />47.5 <br />34 <br />850 <br />0 <br />Weathered Cla stone <br />124 <br />0 <br />14 <br />0 <br />0 <br />Cla stone <br />124 <br />500 <br />22 <br />0 <br />0 <br />v <br />v <br />0 <br />0 <br />a <br />x <br />0 <br />v <br />w <br />t 2: 3] 6) 53 P) '•] :. x !Y, -0 '47 '29 1. a_.. 22: 247 2;_ 29: 3X 32. 34. 3T: _.: 4J. CO 149 4B: 421 N} <br />Distance (feet) <br />