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[ -1 <br />1 <br />B. Backfill excavations as promptly as work permits, but not until completion of the <br />following: <br />1. Acceptance of construction below finish grade including waterproofing and <br />perimeter insulation. <br />2. Inspection, testing, approval, and recording locations of underground utilities. <br />3. Removal of shoring and bracing, and backfilling of voids with satisfactory <br />materials. <br />C. Remove vegetation, debris, unsatisfactory soil materials, obstructions, and deleterious <br />materials from ground surface prior to placement of fills. Plow strip, or break -up sloped <br />surfaces steeper than 1 vertical to 4 horizontal so that fill material will bond with existing <br />surface. <br />D. When existing ground surface has a density less than that specified for particular area <br />classification, break up ground surface, pulverize, moisture- condition to optimum <br />moisture content, and compact to required depth and percentage of maximum density. <br />E. Place backfill and fill materials in layers of 8 in. loose depth for material compacted by <br />heavy compaction equipment, and 6 in. in loose depth for material compacted by hand <br />operated tampers. <br />F. Before compaction, moisten or aerate each layer as necessary to provide optimum <br />moisture content. Do not place backfill or fill material on surfaces that are muddy, frozen, <br />or contain frost or ice. <br />G. Place backfill and fill materials evenly adjacent to structures, without wedging against <br />structures or displacement of piping or conduit. Compaction equipment used within 10 ft. <br />of buried walls and soil supported structures shall not exceed 2000 lbs. <br />3.04 GRADING <br />' 12/04 <br />A. General: Uniformly grade fill areas within limits of project including adjacent transition <br />areas. Smooth finished surface within specified tolerances, compact with uniform levels <br />or slopes between points where elevations are shown, or between such point and existing <br />grades. No soft spots or uncompacted areas will be allowed in the work. <br />B. Grading Surface of Athletic Field Fill: Athletic field shall be sloped at 1.0% from the <br />crown to the edge of the field on each side, and compacted as specified. <br />C. Grading Outside Athletic Field Lines: Finished grade adjacent to or outside of athletic <br />field shall be restored to original elevations. <br />D. Stones or rock fragments larger than 2 -1/2 inches in their greatest dimension will not be <br />permitted in the top 6- inches of the subgrade line of all dike, fills or embankments. <br />02200 -5 04 -4801 <br />