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1.65 <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: 30 ft <br /> 7,500 Bench Face Angle: 90' <br /> r Intermediate Bench Width: 30 ft <br /> 7,300 3. Material Properties: <br /> y = 164 pcf <br /> c' = 340.8 psi = 49080 psf <br /> 7,100 <br /> 7.8' <br /> 00 <br /> 00 <br /> 0 <br /> > 6,900 <br /> un, <br /> z <br /> 6,700 -- <br /> 0 V <br /> 6,500 <br /> W <br /> 6,300 <br /> 6,100 <br /> 5,900 <br /> 5,700 <br /> -1,200 -700 -200 300 800 1,300 1,800 2,300 <br /> Horizontal Distance (ft) <br /> Notes: Morrison Quarry Case 7-2 <br /> 1. The Factor of Safety (FS)value shown is for the South Quarry Highwall <br /> critical failure surface. Jefferson County, CO Proposed Benching <br /> Sensitivity Analysis Results <br /> G I Consultants <br /> Aggregate Industries June 2017 Figure B-24 <br />