REV15278 - Laserfiche WebLink

Home Browse Search

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 leh between successively-dumped loads of materials. The till 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 io 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 till and/or spread out and permitted to dry, assisted by discing and hartowing or mixing in dry material when permitted by CEATIFYING ENGINEER, if necessary, until the moisture content is reduced to an amount suitable for obtaining the specified degree of compaction, at no frost to CC&V. 9. Aftar 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 specked herein. Compaction shall be accomplished with equipment and by methods approved by CERTIFYING ENGINEER. If such equipment or methods are found unsatisfactory for the intended use, CONTRACTOR shall replace the unsatisfactory equipmem with other types or adjust methods until proper compaction is achieved. Section 02200 Page 8 of 15 March 2, 1999 Earthworks Golder Associates Revision 6 --- -~..... d.~,.,~.,~.,,,.,.