Z.O.IV.C.No.B3/1149/2026 -1 Desilting and Minor Repairing of various Storm Water Drain in Div - 39 to 43, Unit - 10, Zone IV

Dismantling of RCC Slab (reinforcement is being corroded) from Storm Water Drain - Steel is declared unfit for use (SWD 1)

Construction of cast -in- situ Silt Catch Pit of inner size 450 X 450 X 450 mm including necessary earth work excavation including providing foundation in PCC 1:4:8 under wall 150mm thick and fixing vertical grating of size 450mm x 155mm x 30mm on the storm water drain mouth with RCC cast in situ wall of size 120mm in RCC 1:1.5:3 with steel of 9.25 kg including fixing FRP Grating Cover with frame of size 550 x 550mm (clear opening 450 x 450mm) -10 MT -completing the finishing work etc.

Supplying of 600mm dia - (24") FRC manhole cover and frame 600mm dia clear opening heavy duty as per IS:12592/2002. The frame & cover shall bear a non fracture load of 20MT for 30seconds with frame height of 165mm, cover height 90mm, Bearing (Seating area of cover)75mm with Hot Dip Galvanizing Hook of cover 16mm, frame edge protection flat of size 25 x 3mm exposed surface of M.S. rings shall be painted with anti corrosive bitumastic paint-complete one set (SWD 3)

Raising Or Lowering 45 cm.(or) 60 cm. Dia Cast Iron Man Hole Frames And Door Including Brick Work Second Class Table Boulded (Chamber Burnt) Brick of Size 9 X 4.3/8"X2.3/4" In cm. 1:3 With C.C 1:2:4 Using 20mm Irc Size B.G. Metal And Rendering Smooth The Top Surface With Cement Etc. Complete

Supplying of PVC pipes 160mm dia with ISI monogram (working pressure 6kg/cm2)

Construction of cast -in- situ Silt Catch Pit of inner size 600 X 600 x 600 mm including necessary earth work excavation including providing foundation in PCC 1:4:8 under walls 150mm thick and cutting the existing storm water drain of size 300 x 150mm for fixing 2 Nos of 160mm dia PVC pipe on the storm water drain mouth, with RCC cast in situ wall of size 120mm in RCC 1:1.5:3 with steel of 10.60 kg including fixing FRP Grating Cover with frame of size 700 x 700mm (clear opening 600 x 600mm) - 10 MT - completing the finishing work etc., cost per each number.

Supplying, fabricating and placing in position Ribbed Tor Steel / TMT reinforcement grills of all variety like HYSD/CTD/TMTand all grade like Fe 500, Fe550D, Fe 500 D etc., for all RCC works as per design given including cost of steel reinforcement and G.I. binding wire, wastage etc. complete complying with standard specification and as directed by the departmental officers.(Contractor has to make his own arrangements for the supply of steel reinforcement and binding wire) Upto plinth / Basement level

Supplying and erecting centering for plane surfaces such as RCC Floor Slab, Roof Slab, Loft, Landing Slabs, etc with necessary supports and strutting upto 3.60m height in all floors with all cross bracings using MS Sheets made of 10 gauge thick welded with MS angle of Size 25mm x 25mm x 3mm for boarding laid over steel adjustable span of size 2m x 2m (expandable upto 3.60m) and supported by Steel Adjustable Telescopic Props of Size 2m x 2m (expandable upto 3.60m) made with outer steel pipe with dia 50mm (3.60mm thick) and inner steel pipe with dia 40mm (2.90mm thick) , etc complete complying with standard specifications. Steel adjustable span and Steel Adjustable telescopic props shall be provided as directed by the departmental Officers. (Payment for centering shall be given after the concrete is laid). SLAB

Providing and laying in position, standardised concrete Mix M-20 Grade using In-situ Concrete batching plant/ Ready Mix Concrete (RMC) adopting weigh batch method in accordance with IS 456 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 Cu.m) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 Cu.m) 5156 kg. of 1012mm machine crushed stone jelly and with about (4.79 cu.m) 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including Conveyance of concrete from batching plant to Work site, Electricity charges and other works & labour cost involved for concrete production, laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS standards. (No separate payment will be made by the Department for the excess usage of materials).

Desilting of Storm Water Drain (SWD 2)