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� ,�� ,� � .J 603.200 Continued. 60Q-5 of compactor is dependent on the type of backfill material used. Precautionary measures should be taken to asaure that the compaction equipment Will not damage the underlying pipe. (4) Eackfilling shall not take place at any time unless approved compaction equipment is available at Lhe site. Ledge rock� boulders and large stones shall be removed to provide a clearance of at least six inches below outside barrel of the pipe, or fittings, and to a clear Nidth of six inches on each side of all pipe and appurtenances for pipe 16 i.nches or les9 in diameter; for pipes larger than 16 inches, a clearance of 9 inches beloN and clear wid th of 9 inchea on each side of inside diameter of pipe shall be provided. Adequate clearance for properly jointing pipe laid in roek trenehes shall be provided at bell holes. Excavations beloa subgrade in rock subgrade Nith material approved by �� and thoroughly compacted. or in boulders shall be refflled to the Engineer or his representative ��. Where trench excavation is encountered Nhich is unsuitable for � backfill, such material ahall be replaced with granular backfill to be supplied by the Contractor at the direction of the Engineer. � � Where pipes are of sufficient size Co create an excess of backfill oaterial� the excess shall be hauled to a location if directed by the En�ineer and this location shall not be beyo�d the Roseville City limits. Hauling and g�adin& of the �xces9 backfill will be considered incfdental to the projeet. Any d�t'iciency in Che quantity of material f'or backf�llins the trenches � or for �'illing depressions cauaed by settleaent shall be aupplied b the Contractor with no extra compensation alloued, Any settleoent y which occur3 bithin one yea� after final acceptance shall be refilled by the Contractor with material supplied at the Contractor's expense and uiLh material approved by the Engineer. �, � � � � Backfill in trenches on sLree�.s shall be placed to an elevaLfon that uill permft the placement of base material and surfacing material.