WBIW/SE/CE(S)/NIT-06e/2025-26, SL 11

Earthwork in excavation or re-excavation of drainage channels / rivers in all kinds of soil including silt, sand, slush etc. mixed with all sorts of Industrial wastes, sewages, municipal garbage, carcasses, tannery effluents, jungles, bushes, semi-solid / solid campact mass, water hyacinth, cowdung deposits, decomposed vegetations, polythenes, brick bats, gravels, stone ballast, crates, remnant of bullah and bamboo pins etc. by means of suitable excavator mounted on pontoon (min. depth of water 0.75 metre) specially made to suit the site condition in tidalor non-tidalchannel/river and carrying ofthe excavatedmaterials to suitable locations of the channel / river bank from the point of excavation by diesel machine operated boats or similar arrangements in a manner suited for the purpose and placing the excavated materials from the boat etc. on the top of the bank in case of disposal at suitable places arranged by the agency at his own cost, on the bank at available locations having distances from the point of re- excavation as shown below, by means of excavators or any other machines or manually as may be required, including all lifts. Measurement : By Pre-work and Post- work level sections. Pre-work level for the existing bed of the channel / river is to be taken by displacing water hyacinth and all other floating materials including compact masses, carcasses etc. and for which no extra payment will be made. Post-work level section will be taken only when a stretch of at least 300 metre is completed and the said post-work will be taken within 7 days after completion of excavation in that reach. Note: The cost for the above work includes the cost of hire charges of excavator including all accessories, excavators, diesel machine operated boats, pontoons etc. and including the cost for mobilisation, de mobilisation, maintenance, cost of fuel and lubricants, wages of operators and labours and all other incidental charges as may be necessary for the above work and the rate also includes the charges of dismantling and re-erection of machine excavator, pontoon etc., if necessary, in the interest of work or for passing of the machines etc. below the bridges. (a) For distance 0 to 50 metre from the point of re-excavation to the placing point on the bank.

Earthwork in excavation or re-excavation of drainage channels / rivers in all kinds of soil including silt, sand, slush etc. mixed with all sorts of Industrial wastes, sewages, municipal garbage, carcasses, tannery effluents, jungles, bushes, semi-solid / solid campact mass, water hyacinth, cowdung deposits, decomposed vegetations, polythenes, brick bats, gravels, stone ballast, crates, remnant of bullah and bamboo pins etc. by means of suitable excavator mounted on pontoon (min. depth of water 0.75 metre) specially made to suit the site condition in tidalor non-tidalchannel/river and carrying ofthe excavatedmaterials to suitable locations of the channel / river bank from the point of excavation by diesel machine operated boats or similar arrangements in a manner suited for the purpose and placing the excavated materials from the boat etc. on the top of the bank in case of disposal at suitable places arranged by the agency at his own cost, on the bank at available locations having distances from the point of re- excavation as shown below, by means of excavators or any other machines or manually as may be required, including all lifts. Measurement : By Pre-work and Post- work level sections. Pre-work level for the existing bed of the channel / river is to be taken by displacing water hyacinth and all other floating materials including compact masses, carcasses etc. and for which no extra payment will be made. Post-work level section will be taken only when a stretch of at least 300 metre is completed and the said post-work will be taken within 7 days after completion of excavation in that reach. Note:The cost for the above work includes the cost of hire charges of excavator including all accessories, excavators, diesel machine operated boats, pontoons etc. and including the cost for mobilisation, de mobilisation, maintenance, cost of fuel and lubricants, wages of operators and labours and all other incidental charges as may be necessary for the above work and the rate also includes the charges of dismantling and re-erection of machine excavator, pontoon etc., if necessary, in the interest of work or for passing of the machines etc. below the bridges. (b) For distance beyond 50 metre but within 100 metre from the point of re- excavation to the placing point on the bank.

Earthwork in excavation or re-excavation of drainage channels / rivers in all kinds of soil including silt, sand, slush etc. mixed with all sorts of Industrial wastes, sewages, municipal garbage, carcasses, tannery effluents, jungles, bushes, semi-solid / solid campact mass, water hyacinth, cowdung deposits, decomposed vegetations, polythenes, brick bats, gravels, stone ballast, crates, remnant of bullah and bamboo pins etc. by means of suitable excavator mounted on pontoon (min. depth of water 0.75 metre) specially made to suit the site condition in tidalor non-tidalchannel/river and carrying ofthe excavatedmaterials to suitable locations of the channel / river bank from the point of excavation by diesel machine operated boats or similar arrangements in a manner suited for the purpose and placing the excavated materials from the boat etc. on the top of the bank in case of disposal at suitable places arranged by the agency at his own cost, on the bank at available locations having distances from the point of re- excavation as shown below, by means of excavators or any other machines or manually as may be required, including all lifts. Measurement : By Pre-work and Post- work level sections. Pre-work level for the existing bed of the channel / river is to be taken by displacing water hyacinth and all other floating materials including compact masses, carcasses etc. and for which no extra payment will be made. Post-work level section will be taken only when a stretch of at least 300 metre is completed and the said post-work will be taken within 7 days after completion of excavation in that reach. Note: The cost for the above work includes the cost of hire charges of excavator including all accessories, excavators, diesel machine operated boats, pontoons etc. and including the cost for mobilisation, de mobilisation, maintenance, cost of fuel and lubricants, wages of operators and labours and all other incidental charges as may be necessary for the above work and the rate also includes the charges of dismantling and re-erection of machine excavator, pontoon etc., if necessary, in the interest of work or for passing of the machines etc. below the bridges. (b) For distance beyond 100 metre but within 200 metre from the point of re- excavation to the placing point on the bank.

Disposal / carriage of excavated earth / materials outside Government land by truck or by any other conveyance over kancha / pucca road including making access for plying the truck or any other conveyance beyond 300 m and upto a distance of 5.00 km from the excavated point including cost of stacking, loading, unloading, transporting, arrangement of land, if required by agency, spreading and levelling as necessary etc. complete. (Measurement : By stacks at loading point after deducting voids as per rule. (This item can only be used after obtaining permission from the concerned Superintending Engineer)

Supplying Jhaw / Eucalyptus bullah piles at work site, including dressing and making one end pointed. Note:Diameter of pile to be measured at a distance of 1.5 m from the thicker end. (iii) 15 cm av. diameter

Labour for driving Jhaw / Eucalyptus bullah piles by monkey in all sorts of soil including hoisting and placing piles in position, protecting the pile head with iron ring and cutting and shaping heads before and after driving and including hire and labour for necessary driving appliances and all tackles. 1)Payment to be made on the length driven into the ground. Diameter to be measured at 1.5 m. from the thicker end. (iii) 15 cm av. Diameter

Supplying, fitting and fixing with iron nails half split bullah wailing pieces and cross pieces etc. complete with cost of all materials and carriage to site. (a) Width of thinner end above 10 cm. and less than 15 cm. (1) Jhaw/Eucalyptus.

Supplying at site and fitting & fixing Mild Steel long nuts & bolts etc. complete as per the direction of the Engineer-in-charge.

Coal tarring with 5% pitch including cost of material and labour complete as per direction of the Engineer-in-charge b) Two Coat.

Fitting, fixing bitumen drum sheet to bullah piling and wailing pieces including cutting straightening drum sheet fixing with country nails @ 20cm c/c at top & bottom and bolts& nuts at top & bottom at every joint of drum sheet with a laping of 15 cm, including supply of drum sheet, fixture all complete as per direction of the Engineer - in - charge.

Making filter with well graded 40 mm down ballasts and laying uniformly behind weep holes, below pitching on bed, side slopes including supply and carriage of all materials to site including preparing bed with earthwork up to 30 cm depth, where necessary and compacting with wooden malllet after laying to achieve designed section as per direction of the Engineer- in - Charge (measurements will be on finished work / in stack after deducting necessary void).) b) 1st class brick ballast

Cast in situ Brick block pitching of required size with 1st class kiln burnt/ picked jhama bricks in cement mortar including flush pointing on all faces except exposed face which will be plastered with 19 m.m. thick cement plaster & curing, dressing, ramming & preparing subgrade in slopes & bed with all leads & lifts including cost of all materials. The gap between adjacent blocks will not be more than 10 m.m. (Mortar mix for making blocks, pointing & plastering-1:4)

Cast-in-situ 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, 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 pm 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 additional 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 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 (JSoR may be used for assessing the quantity of coarse aggregates per cum of concrete). "Stone aggregates of Pakur, or Rajmahal or broken stone of North Bengal Varities." Note:Provisions of the latest Departmental Manual for Lining in Irrigation Canals are to be followed, where applicable.

Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m.(a) in ground floor including roof. (a) upto 150 mm. thick Zone:-

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

Plain / Reinforced Cement Concrete in Sub-structure with coarse aggregates of appropriate nominal size and grading, fine aggregate (sand) conforming to proper grading zone, both of approved quality, cement and water reducing admixtures, as necessary, including labour, cost and carriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge and cost for quality control, sampling, testing etc. all complete as per drawing and technical specification including the cost of necessary form work and staging complete as per drawing and technical specifications. D) RCC Grade M20 (i) Height upto 5m I) Using concrete Mixer

Please Enable Macros to View BoQ information