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CESARE,INC. <br /> feet thick. The rockfill should be saturated by watering its surface prior to compaction. Compaction <br /> should be performed by a vibratory roller of at least 10 tons static weight. The entire rockfill surface <br /> should undergo at least five passes by the vibratory roller prior to proceeding to another lift. A Cesare <br /> representative should observe all rockfill placement operation to verify proper placement. <br /> EARTH FILL <br /> Cesare understands the coarse granular fill will consist of the material tested and reported in this <br /> memorandum.This material should be placed in lifts not exceeding 1 foot thick, moisture conditioned <br /> to at least optimum moisture content (OMC) and compacted to at least 100% of maximum density. <br /> OMC and maximum density should be determined according ASTM D698. A Cesare representative <br /> should perform in-place moisture and density testing of the fill to verify its placement. <br /> SLOPE BENCHING <br /> Either fill type will require benching into existing side slopes as fill placement progresses. Rockfill <br /> benching should be performed at vertical intervals not exceeding 4 feet. Coarse granular fill benching <br /> should be performed at vertical intervals not exceeding 2 feet. The benches should extend <br /> horizontally into the slope to fresh bedrock contact. <br /> 1 <br /> i <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 20.075 Aggregate Industries Haul Road Memorandum 05.14.20 4 <br />