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F be compacted by a minimum of six coverages with the equipment described below, to at least 98 percent of maximum dry density as determined by AASHTO -T -180. Incidental compaction due to traffic by construction equipment will not be credited toward the required minimum coverages. E. Common fill consisting of other than structural fill shall be placed and compacted in a manner similar to that described above for structural fill, with the following exception: layer thickness prior to compaction may be increased the 12- inches in open area; and common fill except dike fill, required below water level in peat excavation areas may be placed as one lift, in- the -wet, to an elevation one foot above the water level at the time of filling. F. Compaction of the fill by such means shall be to the same degree of compaction as obtained by rubber -tired or vibratory roller equipment, and the Engineer may make the necessary tests to determine the amount compactive effort necessary to obtain equal compaction. Large compaction equipment shall not be used within 5 feet of structures. Compaction equipment is subject to approval by the Engineer. G. Place fill material in layers not more than 12- inches loose depth for material compacted by hand - operated tampers. Use manually operated sled -type vibratory compactors next to structures and confined areas not accessible to heavy mechanical compaction equipment. H. If the Engineer shall determine that added moisture is required, water shall be applied by sprinkler tanks or other sprinkler systems, which will insure uniform distribution of the water over the area to be treated, ' distribution of the water over the area to be treated, and give complete and accurate control of the amount of water to be used. If too much water is added, the area shall be permitted to dry before compaction is ' continued. ' I. The Contractor shall supply all hose, piping, valves, sprinklers, pumps, sprinkler tanks, hauling equipment, and all other materials and equipment necessary to place the water in the fill in the manner specified. 3.05 GRADING ' A. General: Uniformly grade fill areas within limits of project including adjacent transition areas. Smooth finished surface within specified tolerances, compact with uniform levels or slopes between points where ' elevations are shown, or between such point and existing grades. No soft spots or uncompacted areas will be allowed in the work. 1 07/06 02220 -13 05 -5564