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_ placed in the enbankment, whether from the excavation of other parts of the <br />work or from borrow areas shall be placed in the location approved by the <br />Engineer and the Contractor shall be entitled to no additional allowance <br />above the prices in the bid schedule on account of this requirement. <br />The earth fill portions of the embankment and earth fill placed for structure <br />foundations shall be constructed in accordance with the provisions of this <br />--- section. <br />No material shall be placed in any section of the earth-filled portion of ttie <br />embankment until the foundation for the section has been dewatered and <br />suitably prepared and has been approved by the Engineer. The foundatim <br />for the earth fill shall be prepared by leveling and rolling so that the surface <br />material of the foundation will be compact and well bonded with the first <br />layer of earth fill as herein specified for the subsequent layers of the earth <br />fill. The surfaces of each portion of the foundation, immediately prior to <br />placing the earth fill, shall have all water removed from depressions and <br />shall be properly moistened and sufficiently clean to obtain a suitable bond <br />with the earth fill. <br />__ The distribution and gradation of the materials throughout the earth frill <br />shall be as du•ected and shall be free from lenses, pockets, streaks, or layers <br />,- of material differing substantially in texture or gradation from the sur- <br />rounding material, or compaction lenses or track lenses. The combined <br />excavation and placing operation shall be such that the material when com- • <br />pasted in the earth fill will be blended sufficiently to secure the best <br />practical degree of compaction and stability. Successive loads of material <br />shall be dumped on the earth fill so as to produce the best practical <br />distribution of the materials, subject to the approval of the Engineer, and <br />for this purpose the Engineer may designate the locations in the earth fill <br />where the individual loads shall be deposited. <br />L- Cobbles and rock fragments having maximum dimensions of more than five <br />inches shall not be placed in the earth fill. The material shall be placed in <br />the earth fill in continuous, approximately horizontal layers not more thian <br />L_ six inches in thickness after being rolled as herein specified. <br />If, in the opinion of the Engineer, the surface of the prepared foundation or <br />the rolled surface of a layer of earth fill is too dry, or too smooth to bound <br />`- properly with the next layer of material, it is to be scarified 6 inches <br />~ moistened to near optimum and recompaeted to 95% of Standard Proctor <br />L Density to provide a satisfactory bonding surface before the next succeeding <br />layer of earth fill material is placed. If, in the opinion of the Engineer, tlhe <br />roller surface of any layer of earth fill in place is too wet for proper <br />! compaction of the layer of earth fill material to be placed thereon, it shall <br />~ be removed, allowed to dry, or worked with a harrow, scarifier or other <br />suitable equipment to reduce the water content to the required amount, then <br />L it shall be recompacted for the next succeeding layer of earth fill material <br />to be placed. <br />• <br />02200-7 <br />