2014-02-07_REPORT - M1980244 (8)

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ameO an acceptable level or meet project specifications as determined by MANAGER and CERTIFYING ENGINEER. It shall then be compacted before the next layer of fill material is placed. Determination of such dry or wet conditions shall be made by CERTIFYING ENGINEER. 4. The distribution of materials shall be such that the fill is free from voids, lenses, pockets, streaks, or layers of material differing substantially in texture or gradation from the surrounding material. The material of a fill shall be as described in Article 2.01 of this Section. 5. Unless otherwise approved by MANAGER and CERTIFYING ENGINEER, the entire fill surface shall be at or near the same elevation at all times during construction. At all times during construction, the surface of the fill shall be graded and maintained by the CONTRACTOR to prevent ponding of water and to allow for storm water drainage. 6. Except as otherwise specified or approved by MANAGER and CERTIFYING ENGINEER,the CONTRACTOR shall dump and spread fill in such a manner so that no excessive gaps are left between successively dumped loads of materials. The fill shall be leveled prior to compaction by means of a dozer or grader, or other suitable approved equipment,to obtain a surface free from depressions. 7. Except in areas approved by MANAGER and CERTIFYING ENGINEER where space is limited or otherwise specified, CONTRACTOR shall place fill by routing the hauling and spreading units approximately parallel to the axis of the fill. As far as practical,hauling units shall be so routed that they do not follow in the same paths, but split their tracks evenly across the surface of the fill to enhance compaction. 8. CONTRACTOR shall apply water required for moisture conditioning on the fill or in the borrow areas. CONTRACTOR shall maintain fill materials within the moisture content range required to permit proper compaction to the specified density with the equipment being used. The moisture content of the fill materials, prior to and during compaction, shall be uniform throughout each layer of the material. Prior to mixing of wet and dry material on the fill to obtain the proper moisture content, approval shall be obtained from CERTIFYING ENGINEER. Mixed material shall have a uniform distribution of the moisture content prior to placement on the subsequent lift. When materials spread on the fill are too dry for proper compaction, CONTRACTOR shall spray water on each layer of the fill and shall work the moisture into the fill by harrowing or other approved means, until a uniform distribution of moisture is obtained. Material that is too wet for proper compaction, as determined by CERTIFYING ENGINEER,shall be removed from the fill and/or spread out and permitted to dry,assisted by disking and harrowing or mixing in dry material when permitted by CERTIFYING ENGINEER, if necessary, until the moisture content is reduced to an amount suitable for obtaining the specified degree of compaction,at no cost to CC&V. 9. After each layer of fill material has been placed,spread,and moisture-conditioned,the layer shall be compacted by passing compaction equipment over the entire surface of the layer a sufficient number of times to obtain the required density,as specified herein. Section 02200 Page 8 of 16 May 9,2012 Earthworks Revision 1