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JJM Schemein North Tripura District during the year 2021-22/ Construction ofInnovativeWater Supply Schemeat Sarala based on existing cherra (Bamnia Cherra) under Kadamtala RD Block / Site development works, Construction of Aerator cum Sedimentation Tank (2.00 lakh Gallon), HRF (2x1.5 lakh gallon /day) & SSF (2x1.5 lakh gallon /day), Clear Water Reservoir (2.00 lakh Gallon) with pump house & Chlorination system , Jack Well (2 x 6.00 m OD) with pump house & electrical accessories, pumping arrangement, Boundary Wall, Toilet Block, providing and laying distribution pipe line, providing domestic connectionetc and other allied works / SH: Providing and laying distribution pipe line, providing domestic connectionetc. under DWS Sub-Division, Dharmanagar during the year 2025-26/ Gr-D.; 1 Excavating trenches of required width for pipes, cables etc. including exacavation for sockets, dressing of sides where required, ramming of bottoms, depth upto 1500 mm including getting out the excavated soil and backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per Chapter - 2 of CPWD specification and direction of the Engineer - in - charge. 2 A. For UPVC pipes in new work a). In all kinds of soili. For pipes not exceeding 90 mm dia 3 iI). For pipes exceeding 90 mm dia but not exceeding 300 mm dia 4 Providing, fixing and laying rigid UPVC pipes conforming to IS : 4985 jointing with couplers, of same class conforming to IS : 10124 ( Pt-II ) with solvent cementconforming to IS : 14182 including testing of joints complete ( but excluding the cost of specials like bend, tees etc. which will be paid separately ) as perCPWD specification and direction of the Engineer - in - charge. A). Class - 3 ( working pressure 6.0 kg / cm2) 5 i) 40 mm OD 6 i) 50 mm OD 7 i) 90 mm OD 8 ii) 110 mm OD 9 iii) 140 mm OD 10 Providing and fixing C.I. sluice valves ( with cap ) complete with bolts, nuts, rubber insertions etc. ( the tail pieces if required will be paid separately ) as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. 11 i). 80 mm dia. A) PN - 1.6 12 ii). 100 mm dia. A) PN - 1.6 13 ii). 150 mm dia. A) PN - 1.6 14 Providing, fixing and laying fabricated UPVC equal tee conforming to IS : 10124 (Part 5) with solvent cement conforming to IS : 14182 including testing of joints complete as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. 15 a) 90 mm X 90 16 b) 110 mm X 110 17 c) 140 mm X 140 18 Providing, fixing and laying fabricated UPVC end cap conforming to IS : 10124 ( Part 4 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per chapter 20 of CPWD specification and direction of the Engineer - in - charge.. 19 a) 90 mm 20 b) 110 mm 21 c) 140 mm 22 Providing, fixing and laying fabricated UPVC bend of required degree conforming to IS : 10124 ( part 8 / 9 / 10 / 11 / 12 / 13 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. 23 a) 90 mm 24 b) 110 mm 25 c) 140 mm 26 Providing, fixing and laying fabricated UPVC straight reducer conforming to IS : 10124 ( Part 3 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. 27 i). 110 x 90 mm dia 28 ii). 140 x 110 mm dia 29 iii). 140 x 90 mm dia 30 Providing, fixing and laying flanged fabricated UPVC tailpiece conforming to IS : 10124 ( Part 6 ) with G.I. flange ( 8 mm thick ) with solvent cement conforming to IS - 14182 including testing of joints complete as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. 31 b) 110 mm 32 c) 140 mm 33 Providing and fixing brass ferrule with C.I. cover conforming to IS :2692 including boring and tapping the main as per chapter 20 of CPWD specification and direction of the Engineer - in - charge.ii) 15 mm nominal bore 34 Providing and laying of flexible PVC pipe (conforming to IS:7634) complete as per specification and direction of the Engineer - in charge (cost of earth work and fittings will be paid separately). 35 i. 15 mm dia 36 ii. 20 mm dia 37 Providing and fixing G.I. socket as per CPWD specification and direction of the Engineer - in - charge.i) 15 mm dia 38 Providing and fixing G.I. union as per CPWD specification and direction of the Engineer - in - charge. 39 i) 15 mm dia 40 ii) 20 mm dia 41 Providing and fixing G.I. Bend /elbow in the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.i) 15 mm dia. 42 Providing and fitting fixing PVC / plastic bib cock conforming to IS : 9763 in hydrant points at different locationas per specification & direction of the Engineer-in-charge.i) 15 mm dia PVC /plastic bib cock 43 Providing and fixing G.I. Nipple of medium class as per chapter 20 of CPWD specification and direction of the Engineer - in - chargeiii)15 mm dia 225 mm long 44 Making road crossing by horizontal boring for smooth laying of UPVC / CI / DI / GI pipes etc. of required dia complete as per specification and the direction of the Engineer-in-charge.B). by manual means 45 Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering –a) All work upto plinth level:i) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded stone aggregate 20 mm nominal size) 46 Supplying and filling in plinth, under floor, foundations etc. with sand (fine) from local quarry with all lifts including spreading in horizontal layers, watering, grading to required slope, ramming, consolidating and compacting each layer by using plate compactor or by any suitable method complete. 47 Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering --All work upto plinth level:1:3:6 ( 1 Cement: 3 fine sand : 6 graded stone aggregate 40 mm nominal size) 48 Providing and laying in position specified grade of reinforced cement concrete excluding the cost of centring, shuttering, finishing and reinforcement-All work upto plinth level:1) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded stone aggregate 20 mm nominal siz 49 Providing and fixing in position Precast RCC hydrant post enraved with logo of JJM and other necessarry details of size 150 x 150 mm at the bottom & 150 x 150 mm at the top and 1500 mm Long ( made with cement concrete 1 : 2 : 4 ( 1 cement : 2 sand : 4 stone aggregate of 10 mm nominal size) and steel reinforcement ( TMT bars ) 8 mm dia 1200 mm long 4 nos and 8 mm dia stirrup 11 Nos ), 300 mm shall be kept below ground level , embedding the same with in 500 x 500 x 500 mm cement concrete 1 : 5 : 10 ( 1 cement : 5 sand : 10 Stone aggregate of 40 mm nominal size ) as per approved drawing, including plastering the exposed surface with 6 mm thick cement mortar 1 : 4 ( 1 cement: 4 sand ) finished with a floating coat of neat cement ) including providing & embedding 15 mm dia G.I. pipe (medium class) 1250 mm long with necessary GI fittings like elbow 2 Nos, socket 1 no, nipple 300 mm long 1 no, union 1 no etc. and fitting fixing of CI long handle bib cock by welding with GI socket complete with all earth work required including refilling as per CPWD specification and direction of Engineer-in-charge. 50 Providing and fixing in position Precast RCC platform of size 750 x 750 mm x 75 mm with curb of size 60 x 50 mm keeping an opening of 100 mm long in a suitable place for draining out of water ( made with cement concrete 1 : 2 : 4 ( 1 cement : 2 sand : 4 Stone aggregate20 mm nominal size) and steel reinforcement ( TMT bars ) 6 Nos, 8 mm dia in both direction including plastering the exposed surface with 6 mm thick cement mortar 1 : 4 ( 1 cement: 4 sand ) finished with a floating coat of neat cement ) complete with all earth work required including refilling as per CPWD specification and direction of Engineer-in-charge 51 Constructing masonry Chamber 90 x 90 x 100 cm, inside with brick work in cement mortar 1 : 4 ( 1 cement : 4 fine sand ) for sluice valve, with C.I. surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep ( inside ) with chained lid and RCC top slab 1 : 2 : 4 mix ( 1 cement : 2 fine sand : 4 brick aggregate 1st class 20 mm nominal size ) necessary excavation foundation concrete 1 : 5 : 10 ( 1 cement : 5 fine sand : 10 brick aggregate 1st class 40 mm nominal size ) and inside plastering with cement mortar 1 : 3 ( 1 cement : 3 fine sand ) 12 mm thick finished with a floating coat of neat cement complete as per standard design,CPWD specification and direction of the Engineer - in - charge. A.With 1st class bricks.
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