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' SECTION 02203 <br /> GENERAL & SELECT FILL, BACKFILL <br /> AND COMPACTION <br /> ' 1 . SCOPE <br /> A . The Contractor shall furnish all of the material , equipment, plant, labor, <br /> transportation and supervision necessary so as to complete the Work as shown on the <br /> Plans and specified herein. <br /> 2 . GENERAL <br /> A. Where structures or unsuitable material have been removed suitable backfill or fill <br /> material shall be provided, placed and compacted to elevate the site to the finish <br /> grade as shown on the grading plans. Pre-fill compaction shall be accomplished prior <br /> to this operation, as specified herein . <br /> 3 . MATERIAL <br /> rA. General Fill - All humus , peat, spongy material , roots, stumps , muck, paving <br /> materials , and other objectionable materials shall be unsuitable for backfill . Suitable <br /> material for backfill shall consist of sandy-loam, clayey-sand, sand, gravel , soft <br /> shale, or crushed stone . The Engineer shall be the sole judge of what constitutes <br /> suitable and unsuitable material for backfill other than those materials listed above . <br /> B . Select Fill - Shall consist of a clean sand containing less than 2% fines passing a No . <br /> 200 sieve and must have a uniformity coefficient of 1 . 5 or greater but not more than <br /> 4 . 0 . Effective grain size should be between 0 . 20 and 0 . 55 millimeters diameter. <br /> Laboratory permeability shall be greater than 80 ft/day . Laboratory sieve analysis <br /> and permeability test results of this fill shall be submitted to the Engineer for his <br /> approval . <br /> 4 . BORROW <br /> A . If <br /> there is not sufficient excavated material of a suitable quality to complete the <br /> ' work, the Contractor shall provide and deliver the necessary suitable additional <br /> material to the job site . <br /> ' 5 . UNSUITABLE MATERIAL REPLACEMENT <br /> A . Fill material shall be placed and spread evenly in layers not to exceed eight inches <br /> before compaction. All fill material shall be free from vegetable matter, wood, and <br /> other deleterious substances , and shall not contain rocks or clods having a diameter <br /> of more than three inches . <br /> C : \ Down1oad \ techspec - 02203 . doc 02203 - 1 <br />