NDRF/SDRF/ RWS/15th FC fund in North Tripura District during the year 2025-26

Lifting of filter media from package type IRP filter chamber as per specification and the direction of the Engineer-in-charge.

Charges for spreading of filter media ( sand and gravel after proper cleaning and washing ) inside the package type IRP as per specification and the direction of the Engineer-in-charge. ( excluding the cost of sand and gravel ).

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.

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth upto 30 cm measured at a height of 1 m above ground level and removal of rubbish upto a distance of 50 m outside the periphery of the area cleared.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth, 1.5m in width as well as 10 sqm on plan) including disposal of excavated earth, lead upto 50m and lift upto 1.5m, disposed earth to be levelled and neatly dressed. All kinds of soil

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil

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 stoneaggregate 40 mm nominal size)

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: 1:1½:3 ( 1 Cement: 1½ fine sand : 3 graded stone aggregate 20 mm nominal size)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and skirting courses, fillets, columns, pillars, piers, abutments, posts and struts etc. upto floor five level excluding cost of centring, shuttering, finishing and reinforcement 1:1½:3 ( 1 Cement: 1½ fine sand : 3 graded stone aggregate 20 mm nominal size

Centering shuttering including struttings, propping etc. and removal of form work for:

Foundations, footings, bases for columns etc. for mass concrete with timber plank

Supporting pillars base;

Columns, Pillars, Piers, Abutments, Posts and Struts with wooden plank

Supporting pillars ;

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level. i) Thermo-Mechanically Treated bars of grade Fe-500D or more

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 CPWD specification and direction of the Engineer - in - charge.

80 mm dia.

100 mm dia.

150 mm dia.

Providing and fixing C.I. non-return valve of approved quality as per of CPWD specification and direction of the Engineer - in - charge.

i) 150 mm dia

Providing and fixing C.I. double action air valve of approved quality with bolts, nuts, rubber insertions etc. complete as per CPWD specification and direction of the Engineer - in - charge. ( The tail pieces, tapers etc if required will be paid separately ).

i) 100 mm dia

Constructing masonry Chamber 90x90x100 cm, inside with 75 class designation 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 190 mm deep (inside) with chained lid and RCC top slab 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) necessary excavation foundation concrete 1:5:10 (1 cement : 5 fine sand:10 graded stone aggregate 40 mm nominal size ) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick finished with a floating coat of neat cement complete as per standard design : With Second Class bricks

Providing and fixing G.I. pipes medim class as per IS : 1239 with latest amendment complete with G.I. fittings including trenching and refilling, cutting and making good the walls etc. complete as per chapter 20 of CPWD specification and direction of the Engineer - in - charge. A). External work

viii). 80 mm dia. nominal bore

Providing and fixing DI specials as per CPWD specification and direction of the Engineer - in - charge.

A. D.I. Flanged Socketted tail piece

iii) 100 mm dia

B. D.I. Flanged Spigotted tail piece

iii) 100 mm dia

Clearing and washing of CI/ DI/PVC pipes earth cutting at intervel not less than 50m with the help of 30/40 mm dia PVC coil pipe having suitable brush at front end and making good the pipe with required specials including earth cutting and refilling complete as per derection of the Engineer in charge.(Coller, coupler, solvent cement Pig lead if requird shall be supplyied by the department)

Charges for repairing of leakage in UPVC / HDPE pipe line with PVC coupler & solvent cement etc. including necessary earth excavation, 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. complete as per specification & direction of the Engineer-in-charge.

a) 90 mm OD

b) 110 mm OD

Pumping out water by Diesel engine Pump as per Specification of E-I-C.

Labour charge for taking out carefully clay silt etc from Intake well minimum lift 15.00 mtr and lift upto 50.00 mtr i/c cleaning the complete as per direction of the Engineer in charge.

Labour charge for taking out carefully the clay soil (clotted) from the back wash channel, Clarifloculator including pumping out water by diesel engine pump & cleaning the complete as per direction of the Engineer in charge.

Providing and placing rapid gravity filter sand having effective size of 0.50 mm to 1.00 mm & uniformity co-efficient of not more than 1.70 and or less than 1.30 obtained from Barakar river West Bengal as per specification and the direction of the Engineer - in - charge.