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PROPOSED GRADING <br />1.5 <br />1 <br />BASE WIDTH "W" DETERMINED <br />BY SOILS ENGINEER <br />COMPACTED FILL <br />NOT TO SCALE <br />PROVIDE BACKDRAIN, PER <br />BACKDRAIN DETAIL. AN <br />ADDITIONAL BACKDRAIN <br />AT MID -SLOPE WILL BE <br />REQUIRED FOR BACK <br />SLOPES IN EXCESS OF <br />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 />TYPICAL SHEAR KEY DETAIL <br />I STANDARD SPECIFICATIONS FOR GRADING I <br />Page 21 of 26 <br />