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� L 2% MIN -y <br />MINIMUM —/ 15MINIMUM BASE KEY WIDTH <br />DOWNSLOPE <br />KEY DEPTH <br />TOE OF SLOPE SHOWN <br />ON GRADING PLAN <br />FILL <br />10' TYPICAL BENCH <br />WIDTH VARIES <br />COMPETENT EARTH <br />MATERIAL <br />TYPICAL BENCH <br />HEIGHT <br />PROVIDE BACKDRAIN AS REQUIRED <br />PER RECOMMENDATIONS OF SOILS <br />ENGINEER DURING GRADING <br />WHERE NATURAL SLOPE GRADIENT IS 5:1 OR LESS, <br />BENCHING IS NOT NECESSARY. FILL IS NOT TO BE <br />PLACED ON COMPRESSIBLE OR UNSUITABLE MATERIAL. <br />NOT TO SCALE <br />FILL SLOPE ABOVE NATURAL GROUND DETAIL <br />I STANDARD SPECIFICATIONS FOR GRADING I <br />Page 12 of 26 <br />