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1.38 <br /> 40 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: 25 ft <br /> 7,500 Bench Face Angle: 90' <br /> Material Properties: <br /> 7.300 <br /> y = 164 pcf <br /> c' = 301.5 psi =43410 psf <br /> 7,100 <br /> CO �. <br /> 00 <br /> > 6,900 \ <br /> Z <br /> 6,700 <br /> C <br /> O <br /> — 6,500 <br /> N <br /> U-1 6,300 <br /> 6,100 <br /> 5,900 <br /> 5,700 <br /> -1,200 -700 -200 300 800 1,300 1,800 21300 <br /> Horizontal Distance (ft) <br /> Notes: Morrison Quarry Case 11-1 <br /> 1.The Factor of Safety(FS)value shown is for the L*ul <br /> critical failure surface. South Quarry Highwall Proposed Benching <br /> Jefferson County, COGE Constants Sensitivity Analysis Results <br /> Aggregate Industries June 2017 Figure B-25 <br />