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NATURAL GROUND <br /> PROPOSED GRADING <br /> 2 <br /> 1 <br /> z 1.5 <br /> � 1 <br /> COMPACTED FILL <br /> 1.5 <br /> 1 <br /> ..W.. <br /> PROVIDE BACKDRAIN, PER <br /> BACKDRAIN DETAIL. AN <br /> ADDITIONAL BACKDRAIN <br /> AT MID-SLOPE WILL BE <br /> REQUIRED FOR BACK <br /> BASE WIDTH "W" DETERMINED SLOPES IN EXCESS OF <br /> BY SOILS ENGINEER 40 FEET HIGH. LOCATIONS <br /> OF BACKDRAINS AND OUTLETS <br /> PER SOILS ENGINEER AND/OR <br /> ENGINEERING GEOLOGIST <br /> DURING GRADING. MINIMUM 2% <br /> FLOW GRADIENT TO DISCHARGE <br /> LOCATION. <br /> NOT TO SCALE <br /> TYPICAL SHEAR KEY DETAIL <br /> STANDARD SPECIFICATIONS FOR GRADING <br /> Page 21 of 26 <br />