WBIW/EE/MSCD/NIT-05(e)/2026-27

Earthwork in excavation in the canals/drainage channels/ borrowpits/ Riverbed/ slope of bank as noted below as per designed section & throwing the spoils in layers of 25 cm. form a to 1.5 metre including breaking clods, rough dressing etc. complete as per direction of the Engineer-in-charge. a) Local soil / soil mixed with moorum or kankar / silt, dry or moist / slushy silt / sticky soil.

Excavation for Structures 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 .aa) upto 3 m depth (ii) With pumping out water excluding shoring

Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity). B) Do - by fine sand

Supplying and laying polythene sheet (150g /M2) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches

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) Pakuri Variety.

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 and direction. (b) Where staging is not required.

Cast-in-situ cement concrete blocks or lining units as per designed section and specification,in nominal mix proportion1:1.5:3(corresponding toM 20 Grade ) with well graded 20 down 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 micron to act as a separator between the bottom surface of the block and the sand cushion/ filter material laid below the blocks, including dressing, ramming, shuttering, finishing the exposed surface by trowel without adding any additinal cement and sand morter, curing and filling the gaps between the adjacent units by 5.6mm down coarse aggregate to be compactedproperly, with all leads and lifts including supply and carriage of all materials, complete, without the cost of sand cushion/ filter. (The rate is exclusive of the cost of stone aggregate and its carriage upto site. Construction wing has to add the cost of same from the SoR of PW (Roads) to derive the consolidated rate. Consumption chart of the USoR may be used for assessing the quantity of coarse aggregates per cum of concrete). With Stone aggregates of Pakur or Rajmahal or North Bengal varieties. Note: provision of latest Departmental Manual for Lining in Irrigation Canals are to be followed ,wherever applicable