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• <br />3. CONTRACTOR shall place Structural Fill materials with less than 30 percent rock <br />materials above 3/4-inch size in maximum 12-inch loose lifts, and compact to 95 <br />percent of maximum dry density (ASTM D698). <br />4. CONTRACTOR shall condition, place and compact Structural Fill contahng more <br />than 30 percent rock materials above 3/4-inch size(rock fill) by a method compaction <br />technique. The compaction equipment shall consist of a minimum 10-ton (static dnun <br />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 <br />cost to CC&V. The method SPECIFICATIONS may be changed at any time, at the <br />discretion of CERTIFYING ENGINEER, based upon changes in material <br />characteristics, field conditions, and/or compaction equipment. <br />Maximum rock size for rock fill shall be two-thirds of the compacted lift thickness, <br />unless otherwise approved by MANAGER, DESIGN ENGINEER and <br />CERTIFYING ENGINEER. CONTRACTOR shall remove oversize materials from <br />fills at no additional cost to CC& V. <br />C. Select Smuctural FiII <br />I. Select Smrctural Fill shalt be placed for miscellaneous site grading as required by the <br />MANAGER and CERTIFYING ENGINEER. <br />u <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 <br />of allowing the movement of vehicles and equipment over the surface without causing <br />rutting or other deleterious effects. <br />3. CONTRACTOR shall place Select Stmctural Fill materials with less than 30 percent <br />rock materials above 3/4-inch size in maximum 12-inch loose lifts, and compacted to 95 <br />percent of maximum dry density (ASTM D698). <br />4. CONTRACTOR shall condition and place Select Structural Fill containing more than <br />30 percent rock materials above 3/4-inch size (rock fill) in maximum 12-inch loose lifts <br />and compact by a method compaction technique. The compaction equipment shall <br />consist of a minimum ten 10-ton (static drum weight) vibratory smooth-drmn <br />compactor. The number of passes shall be subject [o CERTIFYING ENGINEER'S <br />approval, at no additional cost to CC&V. The method SPECIFICATIONS may be <br />changed at any time, at the discretion of CERTIFYING ENGINEER, based upon <br />changes in material characteristics, field conditions, and/or compaction equipment. <br />D. Underdmin Fill <br />Underdrain Fill shall be placed in the Underdrains as shown in the DRAWINGS. <br />2. CONTRACTOR shall condition Underdmin Fill that results in a firm, unyielding <br />surface capable of allowing the movement of vehicles and equipment over the surface <br />without 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 <br />(static drum weight) vibratory smooth-drum compactor. The number of passes and <br />loose lift thickness shall be subject to CERTIFYING ENGINEER'S approval, at no <br />additional cost to CC&V. The method SPECIFICATIONS may be changed at any <br />Section 02200 Page 9 of 17 March 22, 2000 <br />Earthworks Golder Associates Revision 7 <br />1'.100 V201`MOrt~CER1REP0803 W PPENDS W PPEA2200R'I. DOC <br />