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6.2.1 South Quarry <br /> For the South Quarry kinematic analyses, three primary highwall orientations were <br /> evaluated, as shown in Figure 6-2: <br /> 1) West highwall (trending north/south)— overall mining face angle of 67°, bench face <br /> angle of 85°. Highwall dips east. <br /> 2) East highwall (trending north/south)—overall mining face angle of 45°, bench face <br /> angle of 85°. Highwall dips west. <br /> 3) South highwall (trending east/west)— overall mining face angle of 67°, bench face <br /> angle of 85°. Highwall dips north. <br /> Per discussions with Al a North highwall was not modeled, as the north highwall will be <br /> completely mined out and the South Quarry will merge with the Central Quarry, with no <br /> remaining highwall separating the two cells (or quarries). <br /> 6.2.2 West Quarry <br /> For the West Quarry kinematic analyses, three (3) primary highwall orientations were <br /> evaluated within the West Quarry as shown in Figure 6-2: <br /> 1) North Highwall (trending 265°) - overall mining face angle of 67°, bench face angle <br /> of 85°. Highwall dips south (175' dip direction). <br /> 2) North West Highwall (trending 50°)— overall mining face angle of 67°, bench face <br /> angle of 85°. Highwall dips southeast(140' dip direction). <br /> 3) South West Highwall (trending 300°)— overall mining face angle of 67°, bench face <br /> angle of 85°. Highwall dips northeast(35' dip direction). <br /> 27 <br /> Aggregate Industries—Morrison Quarry GEI Consultants, Inc. <br /> AM-07 Geotechnical Stability Exhibit November 2020 <br />