WBMAD/ULB/RSM/1692/25-26

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.

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm.including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work)(a) With earth obtained from excavation of foundation

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

Cement concrete with graded jhama khoa (30 mm size) excluding shuttering In ground floor and foundation.(a) 1:3:6 proportion

Construction of manhole with chamber of sizeas given below as per requirement with out shaft with cement brickwork (1:4)over 150mm.thick jhama cement conc. (1:4:8)bed over a layer of brick flat soling including providing 150mm. thick R.C.C. slab with ordinary cement concrete (mix1:1.5:3)with reinforcement as per standard drawing over the chamber chamber, brick on edge flooring with ordinary cement concrete(mix1:2:4) in the invert with 20mm. thick cement plastering (1:4) finished fine with neat cement 1.50mm. thick in the inside walls and invert, including supplying, fitting and fixing R.C.P.C. manhole cover & frame (35M.T. load bearing capacity) with ordinary cement concrete (mix1:2:4) &C.I. steps (4kg.Each) including cutting hard crust, excavation, dewatering, back filling and removal of spoils but excluding shoring complete as per standard drawing . i)Average depth of invert 1.25m. Below G.L with 250mm. Thick brick work b) Above 400 mm to 600 mm dia having internal size (1500mm × 1100mm) (Depth of invert shall be between 1.25 m. and 1.80 m. below G.L.)[S.O.R. / Deptt. of UD & MA (S&D) P - 28,lt.- 24]

Construction of Catch pit 600mm X 525mm. (inside measurement) and depth of invert 1000mm. 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 100mm. thick R.C.C. slab with ordinary cement concrete (mix1:1.5:3) with reinforcement as per standard drawing, brick-on-edge flooring with20mm. thick cement plaster (1:4) finished fine with 1.5mm. thick neat cement in the inside wall sand invert including supplying and fixing R.C.P.C. gully grid (5M.T. load bearing capacity) and 150mm. dia.C.I. Syphone including cutting hard crust, excavation, dewatering, backfilling and removal of spoils as per standard drawing [S.O.R. / Deptt. of UD & MA (S&D) P - 27,lt.- 23]

Supplying & laying Double Wall Corrugated (with external annular corrugation and smooth internal walls) High Density Polyethelene Pipes conforming to IS 16098 (Part-II):2013 having Stiffness Class of SN 8 with Ring Stiffness not less than 8.00 KN/Sqm. and Impact Resistance TIR value not more than 10% including necessary jointing materials for non pressure underground Drainage, Sewerage & Cross drainage application.600 mm internal dia.

Supplying & laying Double Wall Corrugated (with external annular corrugation and smooth internal walls) High Density Polyethelene Pipes conforming to IS 16098 (Part-II):2013 having Stiffness Class of SN 8 with Ring Stiffness not less than 8.00 KN/Sqm. and Impact Resistance TIR value not more than 10% including necessary jointing materials for non pressure underground Drainage, Sewerage & Cross drainage application. 300 mm internal dia.

Labour Welfare Cess @ 1%