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DIVISION 2 - SITE WORK <br />SECTION 02290 - PLATFORM AND FILL AREA CONSTRUCTION <br />PART 1 - GENERAL <br />1.01 WORK INCLUDED <br />Construction working platform for the slurry wall construction and other fill areas as shown on the <br />drawings and specified herein, including foundation preparation, dewatering, fill placement, water content <br />control, and compaction. This work is to be completed by the Owner prior to slurry wall construction. <br />1.02 RELATED WORK <br />Section 02168 - Slurry Wall Construction <br />PART 2 - MATERIALS <br />2.01 COMPACTED FILL <br />Compacted fill shall consist of random inorganic mixtures of sandy, silty clays to clayey, silty sands. Fill <br />material shall be classified SC, CL, SC-CL according to the Unified Soil Classification System. CH may <br />be allowed upon approval by the engineer. The materials shall be obtained from excavations, borrow areas, <br />or other sources. It shall be free of any deleterious materials, including materials larger than 5". Oversize <br />rock fragments shall be wasted. All fill shall be in accordance with these specifications and shall be <br />approved by the engineer. <br />A. Temporary Construction Platform Fill <br />Temporary Construction Platform Fill will be constructed of clayey soils meeting the following <br />criteria: <br />Sieve Size % Passing <br />5" 100 <br />No. 200 20 - 100 <br />The material shall be obtained from required excavations, borrow areas, stockpiles, or other <br />sources as specified by the Engineer. The soils shall be free of any deleterious materials, <br />including materials larger than 5", as specified by the Engineer. Oversize rock fragments shall be <br />wasted as approved by the Engineer. <br />2/08 Section 02290 - Page 1 of 4