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Section 02200 <br />Earthworks <br />C. Select Structural Fill <br />amec <br />4. CONTRACTOR shall condition, place and compact Structural Fill containing more than <br />30 percent rock materials above 3/4 -inch size(rock fill) by a method compaction technique. <br />The compaction equipment shall consist of a minimum 10 -ton (static drum weight) vibratory <br />smooth -drum compactor. The number of passes and loose lift thickness shall be subject to <br />CERTIFYING ENGINEER's approval, at no additional cost to CC &V. The method <br />SPECIFICATIONS may be changed at any time, at the discretion of CERTIFYING <br />ENGINEER, based upon changes in material characteristics, field conditions, and/or <br />compaction equipment. <br />Maximum rock size for rock fill shall be two- thirds of the compacted lift thickness, unless <br />otherwise approved by MANAGER, DESIGN ENGINEER, and CERTIFYING <br />ENGINEER. CONTRACTOR shall remove oversize materials from fills at no additional <br />cost to CC &V. <br />1. Select Structural Fill shall be placed for miscellaneous site grading as required by the <br />MANAGER and CERTIFYING ENGINEER. <br />2. CONTRACTOR shall condition Select Structural Fill to a moisture content that allows <br />compaction to the required density and that results in a firm, unyielding surface capable of <br />allowing the movement of vehicles and equipment over the surface without causing rutting <br />or other deleterious effects. <br />3. CONTRACTOR shall place Select Structural Fill materials with less than 30 percent rock <br />materials above 3/4 -inch size in maximum 12 -inch loose lifts, and compacted to 95 percent <br />of maximum dry density (ASTM D698). <br />4. CONTRACTOR shall condition and place Select Structural Fill containing more than 30 <br />percent rock materials above 3/4 -inch size (rock fill) in maximum 12 -inch loose lifts and <br />compact by a method compaction technique. The compaction equipment shall consist of a <br />minimum ten 10 -ton (static drum weight) vibratory smooth -drum compactor. The number of <br />passes shall be subject to CERTIFYING ENGINEER's approval, at no additional cost to <br />CC &V. The method SPECIFICATIONS may be changed at any time, at the discretion of <br />CERTIFYING ENGINEER, based upon changes in material characteristics, field <br />conditions, and/or compaction equipment. <br />D. Underdrain Fill <br />1. Underdrain Fill shall be placed in the Underdrains as shown in the DRAWINGS. <br />2. CONTRACTOR shall condition Underdrain Fill that results in a firm, unyielding surface <br />capable of allowing the movement of vehicles and equipment over the surface without <br />causing rutting or other deleterious effects. <br />3. CONTRACTOR shall condition, place and compact Underdrain Fill by a method <br />compaction technique. The compaction equipment shall consist of a minimum 10 -ton (static <br />drum weight) vibratory smooth-drum compactor. The number of passes and loose lift <br />thickness shall be subject to CERTIFYING ENGINEER's approval, at no additional cost <br />to CC &V. The method SPECIFICATIONS may be changed at any time, at the discretion <br />of MANAGER, based upon changes in material characteristics, field conditions, and/or <br />compaction equipment. <br />P \Phase 5 OSA 2011 Cart Report \Appendices\Appendix E Specifications \02200 r1 doc <br />Page 10 of 18 September 3, 2008 <br />Revision 1 <br />