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SECTION 3 – STORMWATER <br />36 <br />3-3.3 (g) PIPE BEDDING <br />From the bottom of the excavation to a point one (1) foot above the top of the pipe, bedding material <br />shall be placed as follows: <br />Granular material shall be hand placed/shovel sliced in loosely measured four (4) inch layers <br />to the spring-line of the pipe. Each layer shall be thoroughly tamped under and around the <br />pipe, and when sufficient layers have been placed in this manner to cover the pipe, the tamping <br />shall proceed across the width of the trench. Hand, pneumatic, or mechanical tampers may <br />be used. The bedding material shall be moist, but not wet, and it shall not include any stones <br />larger than two (2) inches in any dimension. <br />Bedding material and compaction shall conform to the requirements shown in Standard <br />Drawing 3-10. <br />3-3.3 (h) TRENCH BACKFILL <br />Backfill shall be of select native material or B-Borrow free of debris, organic material, and large <br />stones. Removable flowable fill shall be used for trenches within five (5) feet of pavement and <br />walks. <br />Backfill placement and compaction shall conform to the requirements shown in Standard Drawing <br />3-10. <br />3-3.3 (i) TRENCH RESURFACING <br />3-3.3 (i) (i) TEMPORARY SURFACE RESTORATION <br />Once the storm sewer trench has been backfilled, temporary resurfacing shall commence. <br />Temporary resurfacing shall include: <br />1.) Compacted aggregate No. 73, compacted aggregate No. 53, limestone conforming to INDOT <br />Standard Specifications 300. Crushed concrete and natural gravel are also acceptable. <br />2.) HMA base conforming to INDOT Standard Specifications Section 402. <br />3.) CMA base conforming to INDOT Standard Specifications Section 403. <br />4.) Temporary resurfacing treatment shall have a thickness equal to the adjacent surface treatment. <br />Temporary resurfacing treatment shall be installed flush with the adjacent surface treatment. <br />5.) The surface restoration shall be capped with CMA or HMA meeting the above noted <br />specifications until the permanent surface is applied. The temporary patch shall be maintained <br />by the Contractor until the permanent surface is applied.