Protection work at Batabari Nabin Dong FIS under SDMF for the year 2025-26 under SDMF for the year 2025-26 year 2025-26) under Udalguri Mazbat Division (Irrigation), Udalguri Package_2

Construction of Gabion Wall

Providing & making Gabion structure with Mechanically Woven Double Twisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS 16014:2012,MORTH Clause 2500, of required size, Mesh Type 10x12 (D=100 mm with tolerance of ± 2%) Zinc coated, Mesh wire diameter 3.0 mm, mechanically edged/selvedged with partitions at every 1m interval and shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2 mm, supplied @ 3% by weight of Gabion boxes, filled with boulders with least dimension of 200 mm, as per drawing, all complete as per direction of Engineer-in-charge.

Supplying & laying of drainage composite for use behind walls, between two different fills, alongside drains of road, below concrete lining of canals etc. Geocomposite for planar drainage, realized by thermobonding a draining core in extruded monofilaments with two filtering nonwoven geotextiles that may also be working as separation or protecting layers. The draining three dimensional core will have a “W” configuration as longitudinal parallel channels. Minimum thickness to be 7.2 mm, with two filtering UV stabilized polypropylene nonwoven geotextile of minimum thickness of 0.75 mm charecteristic opening size (O90) of 110 micron and tensile strength of 8.0 kN/m that will be working as separation or protecting layer, geocomposite having in plane flow capacity of 2.1 L / (m.s) at hydraulic gradient of 1.0 & 20 kPa pressure and tensile strength of 18 kN/m , with mass per unit area of 740 gsm, supplied in the form of roll for easy transportation to site of work as per detailed specification all complete as per directions of Engineer in charge.

Turfing with grass sode of largest possible rectangular and minimum size 30 cm X 30 cm X 10 cm placing closely after dressing hard the surface and fixing sode with split bamboo pegs, watering till the grass grows with lead up to 90 M and lift of 1.50 M, complete as directed.

Earthwork in filling in all soils in canal embankment and bed filling as per design section and grade by cart carriage for a minimum distance of 1 km including paying compensation of earth obtained from private land if any loading, unloading, spreading the same in embankment in layers not exceeding 15 cm thick including clearing light jungle, removing trees upto 15 cm dia and uprooting roots and stumps etc. from the seat of the breaking clods not more than 10 mm cube, ramming, dressing and roughening the seat of the embankment, profiling etc. with all lift complete as directed (Payment will be made after deduction of 12.50% shrinkage allowance from the gross quantity).

Earthwork in excavation and removal of swelled up earth mixed with silt and slurry due to sand, bailing out water in foundation trenches upto required level including shuttering, shoring, dewatering by means of pump set etc. removing the spoils to a safer distance etc, complete as directed. (ii) With dewatering

Construction of Head Regulator

Earthwork in excavation and removal of swelled up earth mixed with silt and slurry due to sand, bailing out water in foundation trenches upto required level In soil mixed with gravel and boulder upto 30 cm size including shuttering, shoring, dewatering by means of pump set etc. removing the spoils to a safer distance etc, complete as directed.

C.C work in proportion 1:3:6 in foundation / abutment / piers / wing walls etc.with hard broken stone agg. of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc.where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

C.C work in proportion 1:2:4 in foundation / abutment / piers / wing walls etc.with hard broken stone agg. of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc.where necessary complete as directed. (Shuttering, scaffolding cost will be paid separately).

RCC work in slab, abutment cap and above abutment, pier cap, pedestal, dirt wall etc. in proportion 1:1½:3 with hard river shingles of size 6 mm to 20 mm with proper reinforcement as per design including necessary curing etc. complete as directed with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately)

Supplying fitting fixing and laying reinforcement (TATA) in position in RCC work including cutting, bending, cranking with two piles 0.91 M (20 BWG) annealed wire hooking tying complete as directed.

Centering and shuttering including propping, nailing, bolting with earth oiling inside face etc and removal of forms after completion of C.C and R.C.C works etc. complete as directed. (Measurement to be taken on the face area timbered). (Abutment / Return Wall / Piers / Pedestal etc.) With 19 mm thick ply board

12 mm cement plastering including clearing surface and curing complete as directed. In prop. 1:4

Dewatering of CC works considering 1 no. 10 HP and 1 no. of 5 HP pump including POL, carriage and operator's pay etc.

Supplying and mixing rapidite in concrete works below ground water level where necessary etc. complete as directed.

Providing weep holes with 50 mm dia GI pipes of required length and depth fitted with vertical non return valve (50 mm) of brass inside including cost of making filter of size 0.6 M x 0.6 M x 0.6 M fitted with graded filter media at back side and covering the back side with MS wire netting in the abutment, face wall wall of Head Work including shuttering for providing space at the time of casting cement concrete including supplying fitting bend, nipple, etc, complete as directed.

Supply, Fabrication, Installation and Commissioning at site including painting of Shutter Assembly of Cross Regulator/ Head Regulator gates of different size made of 6 mm thick M.S. skin plate, with 10 mm dia. hole to be drilled at an interval of 150 mm apart on both the vertical sides and one horizontal side at the bottom at a fixed distance from the edge, and MS channel of size 100 mm x 50 mm x 4.7 mm or 125 mm x 65 mm x 5 mm for shutter frame, horizontal girders and vertical stiffeners, fitting fixing of C.I. Guide Roller of size 75 mm x 67 mm x 100 mm x 20 mm having 25 mm dia hole with pin Guide roller M.S. bracket of size 90 mm x 90 mm x 250 mm made of 12 mm thick and 90 mm wide M.S. Flat with guide roller pin fitted on the shutter frame, having required slots and holes and supply, fitting and fixing of J' type rubber seal, of size 125 mm, J' type rubber seal corner of size 125 mm, with fabricated M.S. fastener of 50 mm width x 8 mm thick having 10 mm dia. hole at an interval of 150 mm apart for Regulator Gates complete as per design & drawing & as directed.B] C/Regulator & H/Regulator GATES OF SIZE less than 5.0 SqM

Earthwork in back filling of structures, obtained from outside borrow pits filling in 15 cm layers, ramming, dressing, watering, including paying compensation of land if any (with lead up to 30 M and lift 1.5 M).

Constnstruction of RCC Canal

Earthwork in excavation in irrigation canal to the design section and grade by depositing the spoils in the form of embankment in 15 cm layers on both banks as necessary including clearing light jungle,removing trees upto15cm dia and uprooting roots and stumps etc. from the seat of the embankment and canal free from all vegetation including breaking clods not more than10 mm cube, ramming,dressing and roughening the seat of the embankment with a lead upto 30M and lift upto 1.50 M, complete as directed.

CC work in proportion 1:3:6 in foundation / abutment / piers / wing walls etc. with hard river shingles of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

Soling in foundation at all levels including filling intersides, ramming etc complete as directed and of specified thickness with 9 cm brick on flat including sand packing.

Supplying fittingfixingandlayingreinforcement(TATA) in position in RCCwork including cutting, bending, cranking with two piles 0.91M (20BWG) annealed wire hooking tying, complete as directed.

Centering and shuttering including propping, nailing, bolting with earth oiling inside face etc and removal of forms after completion of CC and RCC works etc, complete as directed. (Measurement to be taken on the face area timbered). (Abutment / Return Wall / Piers / Pedestal etc.)

Collection of sand gravel (40% sand and 60% gravel of size 25 mm to 60 mm) free from dust and dirt including stacking in measurable stacks at quarry site and making payment of forest royalty etc. as directed complete

Carriage of boulders, gravels, metal screening, stacking in measurable stacks at site completed as directed. Quarry = Dhansiri = Distance = 5.00 Km For First KM

Carriage of boulders, gravels, metal screening, stacking in measurable stacks at site completed as directed. Quarry = Dhansiri = Distance = 5.00 Km For subsequent Km

Labour charge for pitching with one man size boulder including dressing and ramming the seat to proper size and slope, pitching etc. with local carriage of boulders from a distance of 60 M with lift upto 3 M complete as directed.

CC work in proportion 1:2:4 in foundation / abutment / piers / wing walls etc. with hard river shingles of size 6 mm to 20 mm including curing with necessary timber shuttering, scaffolding where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

12mm cement plastering including clearing surface and curing, complete as directed.

Earthwork in filling in all soils in canal embankment and bed filling as per design section and grade by cart carriage for a minimum distance of 1KM including paying compensation of earth obtained from private land if any loading, unloading, spreading thesame in embankment in layers not exceeding 15 cm thick including clearing light jungle, removing trees upto 15 cm dia and uprooting roots and stumps etc. from the seat of the embankment,breaking clods not more than 10mm cube, ramming, dressing and roughening the seat of the embankment, profiling etc. with all lift, complete as directed. (Payment will bemade after deduction of 12.50% shrinkage allowance from the gross quantity).

Extension of RCC Main Canal

Earthwork in excavation in irrigation canal to the design section and grade by depositing the spoils in the form of embankment in 15 cm layers on both banks as necessary including clearing light jungle,removing trees upto15cm dia and uprooting roots and stumps etc. from the seat of the embankment and canal free from all vegetation including breaking clods not more than10 mm cube, ramming,dressing and roughening the seat of the embankment with a lead upto 30M and lift upto 1.50 M, complete as directed.

CC work in proportion 1:3:6 in foundation / abutment / piers / wing walls etc. with hard river shingles of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

Soling in foundation at all levels including filling intersides, ramming etc complete as directed and of specified thickness with 9 cm brick on flat including sand packing.

Supplying fittingfixingandlayingreinforcement(TATA) in position in RCCwork including cutting, bending, cranking with two piles 0.91M (20BWG) annealed wire hooking tying, complete as directed.

Centering and shuttering including propping, nailing, bolting with earth oiling inside face etc and removal of forms after completion of CC and RCC works etc, complete as directed. (Measurement to be taken on the face area timbered). (Abutment / Return Wall / Piers / Pedestal etc.)

Collection of sand gravel (40% sand and 60% gravel of size 25 mm to 60 mm) free from dust and dirt including stacking in measurable stacks at quarry site and making payment of forest royalty etc. as directed complete

Carriage of boulders, gravels, metal screening, stacking in measurable stacks at site completed as directed. Quarry = Dhansiri = Distance = 5.00 KmFor First KM

Carriage of boulders, gravels, metal screening, stacking in measurable stacks at site completed as directed. Quarry = Dhansiri = Distance = 5.00 KmFor subsequent Km

Labour charge for pitching with one man size boulder including dressing and ramming the seat to proper size and slope, pitching etc. with local carriage of boulders from a distance of 60 M with lift upto 3 M complete as directed.

CC work in proportion 1:2:4 in foundation / abutment / piers / wing walls etc. with hard river shingles of size 6 mm to 20 mm including curing with necessary timber shuttering, scaffolding where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

12mm cement plastering including clearing surface and curing, complete as directed.

Earthwork in filling in all soils in canal embankment and bed filling as per design section and grade by cart carriage for a minimum distance of 1KM including paying compensation of earth obtained from private land if any loading, unloading, spreading thesame in embankment in layers not exceeding 15 cm thick including clearing light jungle, removing trees upto 15 cm dia and uprooting roots and stumps etc. from the seat of the embankment,breaking clods not more than 10mm cube, ramming, dressing and roughening the seat of the embankment, profiling etc. with all lift, complete as directed. (Payment will bemade after deduction of 12.50% shrinkage allowance from the gross quantity).

Construction of HP Inlet

Earthwork in excavation in foundation of canal structures in all types of soils as per design and drawing including dressing the foundation, shoring etc. removing the surplus spoils by head load to safe distance from the working place and depositing the required spoils in uniform layers, dressing, watering, breaking clods to not more than 10 mm cube with compensation, complete as directed at site. (Including bailing out stagnant rain water where necessary). (B) In soil mixed with gravel and boulder upto 30 cm size

CC work in proportion 1:4:8 in foundation / abutment /piers / wing walls etc. with hard river shingles of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

CC work in proportion 1:3:6 in foundation / abutment /piers / wing walls etc. with hard river shingles of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

CC work in proportion 1:2:4 in foundation / abutment /piers / wing walls etc. with hard river shingles of size 13 mm to 38 mm including curing with necessary timber shuttering, scaffolding etc. where necessary, complete as directed. (Shuttering, scaffolding cost will be paid separately).

Supplying of 600mm dia NP3 R.C.C Hume pipe

Labour for fitting and fixing hume pipe in position with collars including joining the cement mortar in proportion 1:3 and curing, including carrying the same from godown to site and complete as directed.

12 mm cement plastering including clearing surface and curing, complete as directed.

Earthwork in back filling of structures, obtained from outside borrow pits filling in 15 cm layers, ramming,dressing, watering, including paying compensation of land if any (with lead up to 30 M and lift 1.5 M).

Silt Clearance

Earth work in excavation of deposited silt mixed with slushy earth, sand, gravel etc. from the canal bed including resectioning, grading the canal bed, bailing out water where necessary and carrying and depositing the suitable earth on the top of both marginal embankment / side slopes in layers of 15 cm thick and breaking clods upto 15 mm cube by wooden rammer properly as directed lead upto 30 M and lift 1.5 M.

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