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1.43 <br /> 41 Configuration: <br /> Bench Height above El. 7000: 40 ft <br /> 7,700 Bench Width above El. 7000: 40 ft <br /> Bench Height below El. 7000: 70 ft <br /> Bench Width below El. 7000: 30 ft <br /> 7,500 \\77771 Bench Face Angle: 90° <br /> Intermediate Bench Width: 30 ft <br /> 7,300 Material Properties: <br /> y = 164 pcf <br /> c' = 295.5 psi = 42545 psf <br /> 7,100 <br /> 00 cp' = 6.8° <br /> 00 <br /> > 6,900 <br /> Q <br /> Z <br /> 6,700 <br /> C <br /> O <br /> 6,500 <br /> N <br /> W 6,300 <br /> 6,100 <br /> 5,900 <br /> 5,700 'L - - - - --- -1 <br /> -1,200 -700 -200 300 800 1,300 1,800 2,300 <br /> Horizontal Distance ft <br /> Notes: Morrison Quarry Case 7-1 <br /> 1.The Factor of Safety(FS)value shown is for the 1 <br /> critical failure surface. South Quarry Highwall Proposed Benching <br /> Jefferson County, CO F Sensitivity Analysis Results <br /> G `Ponsultants <br /> Aggregate Industries June 2017 Figure B-23 <br />