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SECTION 02221 ' TRENCHING, BEDDING, AND BACKFILL FOR PIPE PART 1 -GENERAL 1.01 WORK INCLUDED ' A. Furnish labor, materials, equipment, and incidentals necessary to perform all excavation, backfill, fill, grading and slope protection required to complete the piping work shown on the Drawings and ' specified herein. The work shall include, but not necessarily be limited to: manholes, vaults, duct conduit, pipe, and roadways and paving; all bedding, backfilling, fill and required borrow; grading and disposal of surplus and unsuitable materials; and all related work such as sheeting, bracing and water handling. '1.02 RELATED WORK A. Section 02100: Site Preparation B. Section 02220: Structural Excavation, Backfill & Compaction C. Section 02513: Asphaltic Concrete Paving 1 1.03 TRENCH PROTECTION A. The Contractor shall construct and maintain sheeting and bracing as required to support the sides of excavations, to prevent any movement which could in any way diminish the width of the excavation below that necessary for proper construction, and to protect adjacent structures, existing piping and foundation material from disturbance, undermining, or other damage. Care shall be taken to prevent voids outside of the sheeting, but if voids are formed they shall be Iimmediately filled and compacted. B. For pipe trench sheeting, no sheeting is to be withdrawn if driven below mid - diameter of any pipe, and no wood sheeting shall be cut off at a level lower than 1 foot above the top of any pipe unless otherwise directed by the Engineer. If during the progress of the work the Engineer decides that ' additional wood sheeting should be left in place, he may direct the Contractor in writing. If steel sheeting is used for trench sheeting, removal shall be as specified above, unless written approval is given by ' the Engineer for an alternate method of removal. 1 07103 02221 -1 03- 4138.A