2008-05-27_REVISION - M1997058 - Laserfiche WebLink

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B. Permanent Fill Permanent Fill shall be constructed on clayey soils meeting the following gradation: Sieve Size Percent Passing 5" 100 No. 4 30 - 60 No. 200 25 - 55 The material shall be obtained from required excavations, borrow areas, stockpiles, or other sources as specified by the Engineer. The soils shall be free of any deleterious materials, including materials larger than 5", as specified by the Engineer. Oversize rock fragments shall be wasted as approved by the Engineer. Soils classified as CH shall be used only when previously approved by the Engineer. 2.02 EMBANKMENT MATERIALS SUMMARY Minimum Minimum Construction Unified Soils Class and Placement Compaction Testing Testing Zone Requirements Requirements Requirements Interval Temporary CL, SC, CL-SC, CL-CH, CH Compacted to Density -No Testing No Testing Construction support Required Required Platform Fill 20% or greater passing the No. construction 200 sieve equipment Gradation, ASTM D422 Each 40,000 yds3 Permanent Fill CL, SC, SM, SC-SM, CL-ML (CH by prior engineering approval) 25% to 55% passing the No. 200 sieve No more than 70% retained on the No. 4 sieve PART 3 - EXECUTION 3.01 GENERAL 95% of ASTM Density by nuclear gage, Each 2,000 yds3 D698 ASTM D6938 Gradation, ASTM D422 Each 20,000 yds3 Liquid Limits, ASTM D4318 Each 20,000 yds3 The foundation for each section shall be dewatered, stripped, and suitably prepared. All cavities, depressions, and irregularities within the fill area shall be filled with compacted fill as specified above. A. Permanent Fill Weathered bedrock shall be removed a minimum depth of 12 inches or more to subject to approval by the engineer prior to fill placement in areas to receive permanent fill. 3.02 DEWATERING The Owner shall construct and maintain all necessary channels, flumes, drains, and related structures; furnish all equipment required to remove water from various parts of the work; and maintain Section 02290 - Page 2 of 4 02/08