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Appendix D Page D-4 <br /> Standard Specifications for Grading <br /> 6.2 Cut Slopes <br /> Unless otherwise recommended by the geotechnical consultant and approved by the <br /> regulating agencies, permanent cut slopes should not be steeper than 2:1 (horizontal: <br /> vertical). <br /> The geotechnical consultant should observe cut slope excavation and if these excavations <br /> expose loose cohesionless, significantly fractured or otherwise unsuitable material, the <br /> materials should be overexcavated and replaced with a compacted stabilization fill. If <br /> encountered specific cross section details should be obtained from the Geotechnical <br /> Consultant. <br /> When extensive cut slopes are excavated or these cut slopes are made in the direction of <br /> the prevailing drainage, a non-erodible diversion swale (brow ditch) should be provided <br /> at the top of the slope. <br /> 6.3 Pad Areas <br /> All lot pad areas, including side yard terrace containing both cut and fill materials, <br /> transitions, located less than 3 feet deep should be overexcavated to a depth of 3 feet and <br /> replaced with a uniform compacted fill blanket of 3 feet. Actual depth of overexcavation <br /> may vary and should be delineated by the geotechnical consultant during grading, <br /> especially where deep or drastic transitions are present. <br /> For pad areas created above cut or natural slopes, positive drainage should be established <br /> away from the top-of-slope. This may be accomplished utilizing a berm drainage swale <br /> and/or an appropriate pad gradient. A gradient in soil areas away from the top-of-slopes <br /> of 2 percent or greater is recommended. <br /> Section 7 - Compacted Fill <br /> All fill materials should have fill quality, placement, conditioning and compaction as specified <br /> below or as approved by the geotechnical consultant. <br /> 7.1 Fill Material Quality <br /> Excavated on-site or import materials which are acceptable to the geotechnical consultant <br /> may be utilized as compacted fill, provided trash, vegetation and other deleterious <br /> materials are removed prior to placement. All import materials anticipated for use on-site <br /> should be sampled tested and approved prior to and placement is in conformance with the <br /> requirements outlined. <br /> STANDARD SPECIFICATIONS OF GRADING <br /> Page 4 of 26 <br />