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1.54 <br /> • <br /> 7,700 Configuration: <br /> Bench Height above El. 7000: 40 ft <br /> Bench Width above El. 7000: 40 ft <br /> 7,500 Bench Height below El. 7000: 70 ft <br /> Bench Width below El. 7000: 30 ft <br /> Bench Face Angle: 900 <br /> 7,300 -- Stability Bench at El. 6650 <br /> Stability Bench Width: 50 ft <br /> 7,100 Material Properties: <br /> 00 <br /> 00 y = 160 pcf <br /> Q c` = 64.2 psi = 9245 psf <br /> Q6,900 - V = 21.80 <br /> Z <br /> 6,700 <br /> C <br /> O <br /> 6,500 r- <br /> N <br /> LL1 6,300 Ol <br /> 6,100 'r <br /> 5,900 - <br /> 5,700 --- — 1 <br /> -1,200 -700 -200 300 800 1,300 1,800 2,300 <br /> Horizontal Distance (ft) <br /> Notes: Morrison Quarry Case 16 <br /> 1. The Factor of Safety(FS)value shown is for the <br /> South Quarry <br /> critical failure surface. Jefferson County, COnt11 <br /> y, C Proposed Benching <br /> Stability Results <br /> GEIConsultants <br /> Aggregate Industries June 2017 Figure B-16 <br />