Irrigation And Waterways Department Tender

Soft weathered rock / soft laterite.

Extra rate over Item Nos.- 2 for all kinds of soil for every additional lift of 1.50 metre or part thereof beyond the initial lift of 1.50 metre. (a) Extra 1 (one) number lift beyond the initial lift of 1.5 metres.

Extra rate over Item No. 2 for all kinds of soil for every additional lead of 30.0 metre or part thereof beyond the initial lead of 30.0 metre. (b) Extra 5(five) number lead beyond the initial lead of 30 metres.

Providing & fixing Concrete Sign Board as per IRC specification of size 900 x 750 x 37 mm. thick made with RCC 1:1½:3 with pakur variety stone chips reinforced with double layer IRC febric (75 x 75 mm. mesh) and fixed with necessary nuts & bolts on two RC precast posts 100 mm. x 150 mm. of height 2.65 m. of which top 750 mm. is of section 100 x 13 mm. and 1.90 metre above GL & 0.75 metre below GL including digging hole, repacking the same with cement concrete 1:3:6 with jhama khoa or with local stone chips etc. complete including painting two coats on both faces lettering sign marks etc. as per direction of the Engineer-in-Charge. (The rate is inclusive of cost of reinforcement, concrete, shuttering, nuts & bolts, washer etc. complete.)

Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, removing, spreading or stacking of spoils within a lead of 150 m. as directed and including trimming the sides of the trenches, leveling, dressing and ramming the bottom, and backfilling with approved material complete as per direction of the Engineer-in-Charge . I. In all sorts of soil excluding marshy soil & rocks (soft or hard) by manual means. a) upto 3 m depth (i) Without pumping out water and shoring.

Sand filling in foundation trenches and at the back of abutments, wing-walls etc. with good local sand free from earth in layers not exceeding 15 cm. including inundating each layer by profuse water and poking and ramming layer by layer complete including supply of sand. Quality of sand is to be approved by the Engineer-in-charge. Compaction factor of dry clean sand is 0.835

Precast cement concrete blocks or lining units as per designed section and specification, in nominal mix proportion 1:1.5:3( corresponding to M20 Grade) with well graded 20mm down stone metal aggregate, including dressing, ramming, shuttering, finishing the surface by trowel without adding any additional cement and sand mortar, curing, transporting and laying the blocks or lining units at worksite in position, over sand cushion,filter, layer, with cold (paper) joints between the adjacent units, having gap varying from 0 to 5 mm as tolerance, with all leads and lifts, including supply and carriage of all materials complete. With stone aggregate (Pakur, or broken stone of North Bengal Varieties)

Cast-in-situ cement concrete blocks or lining units as per designed size and specification, with well graded stone metal aggregate, laid in position by casting in alternative panels or otherwise to keep a gap of 12mm between the adjacent units, over a layer of polythene sheet of thickness not less than 100 to act as a separator between the bottom surface of the block and the filter material laid below the blocks, including dressing, ramming, shuttering, finishing the exposed surface with 1:3 cement and sand mortar, curing and filling the gaps between the adjacent units by 5.6mm down coarse aggregate to be compacted properly, with all leads and lifts including supply and carriage of all materials, complete, without the cost of filter. With Stone aggregatesl (Pakur, North Bengal or Rajmahal varieties. C) Nominal Mix. 1:1:5:3 with 20 mm down coarse aggregate

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. a)Pakur Varity

Hire and labour charges for Shuttering with or without staging upto 4.0 m height using approved stout props with wooden planks/ply wood/steel sheet plate with required bracing for any kind of plain or reinforced concrete works in all sorts of minor structure including culvert, box culvert, crossdrain etc. The rate is inclusive of fitting, fixing and striking out after completion of work as per specification andmdirection. (b)Where staging nis not required.

Supplying and laying Polythene Sheet (150gm / sq.m.) over damp proof course or below flooring or roof terracing or in foundation or in foundation trench.

Class NP-2 R.C.C. Spun Pipes,Bore dia-225 mm,Thickness 25 mm,Standard length-2.00m., including Loading, Unloading & Freight Charges.

Class NP-2 R.C.C. matching collar for Spun Pipe bore dia-225 mm Thickness 25 mm including Loading, Unloading & Freight Charges.

Laying of R.C.C. pipe with collar, lowering the same into the trench laying on the bed in trenches in prescribed gradient, depth and alignment, filling the end grooves with necessary bitumastic compound,filling caulking space with tarred gasket or with rubber gasket of appropriate size & covering with cement mortar (1:2) & testing the joints etc. complete as per drawing, specification including carriage of pipes from site stacks to the place of laying etc. & as per direction of the Engineer-in-charge.(Payment to be made on the basis of actual finished length of the pipe line). A) Class NP-2 Pipe g) 225 mm dia

Earthwork in filling in foundation trenches with good earth in layers not exceeding 15cm. Including watering and ramming layer by layer complete with earth obtained from excavation of foundation or from fresh excavation of land arranged by Department within a lead of 150m.