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SECTION 92629 <br />EXISTING WASTEWATER MAIN IMPROVEMENTS ABANDONMENT <br />GENERAL <br />Description Of Work <br />This work shall consist of the abandonment of existing wastewater mains that are to be <br />removed from service or to be replaced with new wastewater mains; filling specific sections of <br />pipes to be abandoned in place with grout and/or by physical removal of the wastewater main; <br />including all excavation, backfilling, restoration, M.O.T. and all else necessary. The locations of <br />existing wastewater mains to be abandoned are depicted on u a construction plans. <br />M.O.T. per applicable FDO T Index Numbers (600 Series) shall be provided for at all times ;or <br />the duration of the work. <br />Methods Of Construction <br />The Contractor shall coordinate with the Indian River County Utilities Department (IRCUD) to <br />ensure all remaining pressurized wastewater mains are properly restrained prior to the cutting of <br />any pipe. <br />Prior to abandonment the wastewater main shall be emptied of residual wastewater, either by <br />pumping or by flushing with non -potable water. The Contractor shall submit a flushing/pumping <br />plan to IRCUD and the Engineer. <br />The Contractor shall provide a vacuum truck to recover any spilled wastewater. Recovered <br />wastewater shall be disposed of at a wastewater treatment plant as directed by IRCUD. <br />The Contractor shall be responsible for restoring any areas disturbed as a result of <br />abandonment of existing wastewater mains. <br />In Place Abandonment: Wastewater main to be abandoned in place shall be flushed as <br />described above and capped in areas where the proposed reuse main will not be installed along <br />the wastewater main alignment. <br />Physical Removal Abandonment: The Contractor shall physically remove and dispose of any <br />existing valves, air release valves, and aerial crossings along portions of the wastewater mains <br />sections to be abandoned at the locations depicted on the Construction Plans. <br />The Contractor shall submit a disposal plan for the removed wastewater main and <br />appurtenances. <br />`END OF ;SECTION* <br />02620-1 <br />D:TIVISIGN 2\02629 wastewater Main Abandonment.doc <br />