WBMAD/NDITA/121/2025-26/SL.08

Construction of gullypit 1100mmX625mm. inside measurement and depth of invert 1500mm. below G.L. with 250mm. thick cement brick work (1:4) over 100mm. thick jhama cement concrete (1:4:8) bed over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary cement concrete (mix 1:1.5:3) with reinforcement as per standard drawing, brick on-edge flooring in the invert, 20 mm. thick cement plaster (1:4) finished fine with 1.5 mm. thick neat cement in the inside of walls and invert including supplying, fitting and fixing R.C.P.C. gully grid (15-M.T.load bearing capacity) and 225 mm. dia. C.I. Syphone including cutting hard crust, excavation, dewatering, back filling and removal of spoils as per standard drawing .

Dismantling all types of plain cement concrete works,stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. In ground floor including roof. (a) upto 150 mm. thick

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1,500 mm.

Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.

Brick-on-edge floor or pavement with 1st class brick set close in cement mortar (1:6) and laid with cushion of sand below (including cost thereof) including ruled or flush pointing with cement mortar (1:4) on top.

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes. (i) Pakur Variety

Supplying, fitting and fixing PVC pipes for underground work of approved make of Schedule 80 (medium duty) conforming to ASTMD -1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple, longscrew, reducing socket, reducing tee, short piece etc.fitted including cost of all materials ,jointing materials, cutting pipes,making threads ,cutting trenches upto 1.5 metre below surface in all sorts of soil and refilling the same as directed complete in all respect. (Payment will be made on the centre line measurement of the total pipe line including all specials No separate payment will be made for accessories, specials.) 300 mm. Dia.

Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge

100 mm thick interlocking designer concrete paver block M-50 grade for hightraffic zone, bus terminus, industrial complex, mandi houses etc. as per IS: 15658- 2006 (over 20-40 mm medium sand bed on 250mm thk WBM/ WMM base course & 250 mm thk bound gnaular/ granular sub-base course & filling the interstices of blocks with fine sand by brooming & subsequent watering including cost of sand for sand bed but excluding cost of base, sub-base course & subgrade preparation.) complete as per direction of Engineer-in-Charge. [Note: Subgrade CBR shouldnot be less than 5] Grey

125 mm. thick brick work with 1st class bricks in cement mortar (1:4) in ground floor.

Supplying, fitting and fixing in position polymer concrete manhole /gully pit cover with matching frame.As per I.S-12592(M.D) (i) 35 MT load bearing capacity round manhole cover provided with two lifter hooks fitted with matching frame of size each 4034.00 Cover: 700 mm X 100 mm Frame: 910 mm X 185 mm opening: 560mm Weight: 245 kg (approx)

Construction of manhole with chamber of size as given below as per requirement and 600mm X 600mm. (inside measurement) square shaft, with cement brick work (1:4) over 150 mm. thick jhama cement concrete (1:4:8) bed, over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary concrete (mix 1:1.5:3) with reinforcement as per standard drawing over the chamber, brick-on-edge flooring with ordinary cement concrete (mix 1:2:4) in the invert with 20mm. thick cement plaster (1:4) finished fine with 1.5mm. thick neat cement in the inside walls and invert including supplying, fitting and fixing R.C.P.C. cover and frame (35 M.T.load bearing capacity) with ordinary cement concrete (mix 1:2:4) and C.I. steps (4 Kg. each) including cutting hard crust, excavation, de-watering, back filling and removal of spoils but excluding shoring complete as per standard drawing. (Depth of invert shall not be less than 1.80M below G.L.) Average depth of invert 2.5m. below G.L. i) With 250mm. thick brick work b) Above 400 mm to 600 mm dia having internal size (1500mmx1100mm)

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