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<br />Engineer. <br />The dewatering operation shall continue until such time that it is safe to allow the water table to rise in the <br />excavation and upon the approval by the Engineer. <br />3.03 STRIPPING -See Section 02100 -Site Preparation <br />3.04 PLACING EMBANK.MEM' MATERIALS <br />The suitability of each part of the foundation for placing embankment materials thereon, and of all materials <br />for use in embankment construction, will be determined by the Engineer. No embankment material shall be <br />placed in the fill area when either the material or the foundation or embankment on which it would be placed <br />is frozen. <br />No brush, roots, sod, or other perishable or unsuitable materials shall be placed in the embankment. <br />Each load of the material placed in the embankment, whether from excavation for other pare of the work or <br />from bortow pits, shall be placed in [he location designated by the Engineer. <br />If, in the opinion of the Engineer, the surface of [he prepared foundation or the compacted surface of any <br />layer of earthfill is too dry or smooth to bond properly with the layer of material to be placed thereon, it shall <br />be moistened and/or worked with harrow, scarifier, or other suitable equipment, in an approved manner to a <br />sufficient depth to provide a satisfactory bonding surface before the next succeeding layer of earthfill <br />material is placed. If in the opinion of the Engineer, the compacted surface of any layer of the earthfill in <br />place is too wet for proper compaction of the layer of earthfill material to be placed thereon, it shall be <br />removed; allowed to dry; or be worked with hartow; scarifier, or other suitable equipment to reduce the <br />moisture content to the required amount: and then it shall be recompacted before the next succeeding layer <br />of earthfill material is placed. <br />The earthfill on each side of any structures shall be kept ac approximately the same level as the placing of <br />the earthfill progresses, and the structures shall be protected against displacement or other damage. <br />3.05 MOISTURE AND DENSITY CONTROL <br />A. Fill Material <br />The standard optimum moisture content is defined as "that moisture content which will result in a <br />maximum dry unit weight of the soil when subjected to the Standazd Proctor Compaction Test as <br />described by AST ill D-698." Material represented by the samples tested having a placement <br />moisture content less than 3°•'o below standard optimum condition or more than 3°•'o wet of [he <br />standard optimum condition will be rejected and shall be reworked until the moisture content is <br />between these limiss. Additional moisture as required in the opinion of the Engineer may be <br />applied by sprinkling. <br />Each layer of the material on the embankment shall be compacted as indicated in the section which <br />applies to the material being placed. During compaction, the placement moisture content and dry <br />density of the earthfill shall be maintained within the control limits specified in each section. <br />To determine that the moisture content and dry density requirements of the compacted earthfill are <br />being met, field and laboratory tests will be made at frequent intervals on samples taken at <br />embattlement locations determined by the Engineer. The results of al{ <br />completed earthwork tests will be available to the Contractor at the office of the Engineer. <br />Ol/99 Section 02290 -Page 2 of 3 <br />