WBIW/SDO/BISD/eNIT-04/2026-27 SL 01

Cutting uprooting and clearing jungles including shrubs, water weeds,bushes, trees, plants, upto 30 cm. girth including removing as directed by Engineer-in-charge.

Earth work in excavation in the canals/ drainage channels/ borrowpits/ River bed / slope of bank as noted below as per designed section & throwing the spoils in layers of 25cm. for making banks as per profile or to deposit the same in any other place within an initial lead of 30 metre and initial lift of 1.5 metre including breaking clods, rough dressing etc. complete as per direction of the Engineer-in-charge. (a)Ordinary soil / local soil /soil mixed with moorum or kankar /silt,dry or moist / slushy silt / sticky soil.

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 than100 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 b 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. (Ther ate isexclusive 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). (Stone Aggregate of Pakur or Rajmahal,or broken stone of North Bengal varieties) Note:provisions of the latest departmental manual for lining in Irrigation Canals are to be followed ,whenever applicable.

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] (i) With 1:6 cement mortar (c) 15 mm thick plaster

Neat cement punning about 1.5mm thick in all, dado, window sill, floor etc. NOTE:Cement 0.152 cu.m per 100 sq.m.

Ordinary Cement concrete (mix1:1.5:3) 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.

Dressing and chilchalling flanks or slope of embankment including filling with earth or cutting upto 150 mm. average thickness and ramming properly after sprinkling water.