maintenance and repairing water supply pipe line in zone no . 4 , excavation for foundation/pipe trenches in earth , soils of all ltypes , sand , gravel and soft murum , including removing the excavated material upto a distance of 50 metres and lifts as below , stacking and spreading as directed , normal dewatering preparing the bed for foundation and excluding back filling etc complete ( bd-a-1/259 ) lift 0 to 1 . 5 m mjp/dsr/2018-2019/ page no . 34 i . no . 1 , excavation for foundation/pipe trenches in hard murum and boulders , w . b . mn . road including removing the excavated material upto a distance of 50 m beyond the area and lifts as below , stacking and spreading as directed by engineer-in-charge , normal dewatering , preparing the bed for foundation and excluding backfilling , etc . complete ( bd-a-3/259 ) lift 0 to 1 . 5 m mjp/dsr/ 2018-2019 page no . :33 item no . :3 , excavation for foundation/pipe trenches in soft rock and old cement and lime masonry foundation asphalt road by all means including removing the excavated material upto a distance of 50 m beyond the are and lifts as below , stacking as directed by engineer-in-charge , normal dewatering , preparing the bed for foundation and excluding backfilling etc complete ( bd-a-4/259 ) lift 0 to 1 . 5 m mjp/dsr/2018-2019/ page no . 34 i . no . 5 , excavation for foundation / pipe line trenches in hard rock and concrete road by chiselling , wedging , line drilling by mechanical means other than blasting including trimming and levelling the bed , removing the excavated material upto a distance of 50 metres and lifts as below , stacking and spreading as directed , normal dewatering , preparing the bed for foundation and excluding backfilling , etc comp . lift 0 to 1 . 50 m mj/dsr /2016-2017/ page no . 35 i . no . 7 , providing and supplying ac pressure pipes manufactred & tested as per 150 160 standerds of following class & diameters in standared length etc . , 100 mm dia ac pipe , 150 mm dia ac pipe , lowering laying and jointing with cid joints ac pressure pipes and ci or ms specials of following class and diameter including conveyance from stores to site of works cost of labour and material giving satisfactory hydraulic testing etc . as per isi code etc complete but excluding cost of cid joints nut-bolts rubber rings . , 100 mm dia ac pipe , 150 mm dia ac pipe , providing and supplying c . i . detachable joints suitable for a . c . pressure pipes manufactured as per is-1538/1993 standard of following class and diameter including cost of all taxes ( central and local ) , insurance railway freight , inspection charges , unloading from railway wagon , loading into truck , trnsporting to departmental store/site , unloading , stacking and ocst of rubber rings , nut bolts , etc complete . , 100 mm dia cid joints , 150 mm dia cid joints , 200 mm dia cid joints , providing double flanged sluice valves conforming to is-2906/14846 including worm gear arrangements as per test pressure , stainless steel spindle , caps , including all taxes , transportation , etc . complete . , 100 mm dia s . v . pn-1 . 6 , lowering layding and jointing in position following cidf reflux valve , butterflay valave and sluice valve etc complete , 100 mm dia s . v . , removing and refixing half body sluice valve including excavation refilling cost of rubber packing , nut bolt , with gate , gland rope , repair by welding etc complete , 100 mm dia , 150 mm dia , 200 mm dia , 250 mm dia , 300 mm dia , 400 mm dia , 450 mm dia , 500 mm dia , providing and supplying s . s . spindle rod as per standard ddspecifications and suitable for sluice valve etc complete , 150 mm dia , providing and supplying gun metal check nut of following diameter of sluice valve etc complete , 100 mm dia , 150 mm dia , 200 mm dia , 250 mm dia , 300 mm dia , providing and supplying isi standard c . i . specials of required tand outside surface including all taxes ( central and local ) , octroi , inspection charges , transportation to stores/site and stackding , etc . complete e ) plain ended specials or plain ended branch flanged specials of all diameters . , making cross connection to existing distribution main of any type including excavation , breaking and removing existing pipes , lowering , laying of specials and pipes in their position , refilling , closing the water supply in that area , dewatering and restarting the water supply , etc . complete as directed by engineer-in-charge for following diameters of existing pipe line , irrespecrtive ofdiameter of branch line . ( the number of joints involved will be paid separately depending upon the nature of joints and required pipes , valves and specials will be supplied free of cost at stores . ) p . no . 47 i . no . 10 ( ix ) , 100 mm dia , 150 mm dia , removing remaking existing cross connection including excavation broken cid joints and tee inlcuding excavation and refilling etc complete , 100 mm dia , 150 mm dia , 200 mm dia , removing and refixing c . i . gland plate existing cidf sluice valve including etc completer , 100 mm dia , 150 mm dia , 200 mm dia , 250 mm dia , repairing the gate by welding and make itin original position etc complete . , repairing private water boaring connection for contamination of water with material etc complee . , providing and supplying fabricating m . s . clamp etc complete . , 100 mm dia , 150 mm dia , 250 mm dia , refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation , surcharging , etc complete