Restoration of Dehing bund L/B from Joongaon to Laibeel from the erosion of river Dehing at Laibeel Lachan gaon.

Amount

Earth work in embankment by Mechanical means by truck carriage with locally available ordinary/normal soil excluding sandy and rocky soil free from roots & vegetation and filling in uniform layers not exceeding 25 cm thick including ploughing or roughening or benching the seats, removing all debries, breaking clods up to 4 cm cube, dressing as per design section and compaction in layers not exceeding 30 cm in thickness and core cutter soil test at every layer and every 500 m distance, etc. complete as directed. B. Compaction with vibratory roller of 80-100 kN capacity 2.24.1 For initial Lead up to 1.00 Km for all lifts.

Collection of sand gravel from approved quarry containing 60% sand and 40% gravel free from disintegrated and flaky pieces of vegetation and other deleterious matters, adherent coating etc. including stacking in suitable stacks at quarry site etc. complete as directed.

Labour charge for laying of soling stone, brick bats, broken stone metal, sand gravel etc. on approach roadincluding ramming dressing the seat and local carriageof materials up to a distance of 60 m complete as directed.

Construction of temporary shed two roofed with mud plinth of 0.45m height above ground level with Bhaluka bamboo posts 1.5m apart driven at least 0.75m below ground and height above plinth 2.50m spilt Jati bamboo walls mud plastering , white washing two coats, 10 cm thick thatch roofing over bamboo rua frame placing at 0.15m clear apart fitted with bamboo kamies frame binding doors and windows with bamboo chattai strengthening with bamboo frame binding with wire etc. complete as directed. (Using Bhaluka bamboo at the rate of 6.00 nos / Rm & Jati Bamboo at the rate of 61.00 nos /Rm)

Supply of Pre-stressed Cement Concrete (PSC) Porcupine members of size 0.10m x 0.10m x 3.00m with M-30 grade of cement concrete conforming to IS 1343:2012 using super- plasticizer @ 1.2 ltr/bag of cement with graded broken course aggregate up to 20mm size down and reinforced to IS 10262: 2009 & IS 456: 2000 and reinforced with 4 nos of 4mm dia high tensile steel wire cable / strain with necessary cover and 4mm high tensile stirrups at 250mm C/C , in conformity with IS-6403 : R2002 and stressed to required strength not execeding 9.18 N/mm, holes of 16mm dia at 50cm inside from both ends in the same face and in eighter face of post another 2 nos of holes of size 16mm dia at 65mm inside from both ends including properly curing for 21 ( twenty one ) days and carriage of porcupine members from factory to the stack yard within a distance up to 50km including loading, unloading & stacking complete as directed.

Labour charge for launching of PSC Porcupine including carriage of PSC Porcupine members of size 0.10m x 0.10m x 3.00m from the stack yard to the place of launching , erection of the Porcupine with 6 (six) members properly, supply & fitting/ fixing with 12mm dia 25cm long M.S Nuts and bolts and launching the porcupine properly as directed . ( Lead up to 150m) Launching without boat

Labour charge for launching of PSC Porcupine including carriage of PSC Porcupine members of size 0.10m x 0.10m x 3.00m from the stack yard to the place of launching , erection of the Porcupine with 6 (six) members properly, supply & fitting/ fixing with 12mm dia 25cm long M.S Nuts and bolts and launching the porcupine properly as directed . ( Lead up to 150m) Launching with boat

Supplying, fitting and fixing RCC guard post 150cm long erected 75cm above the ground and 75cm below the ground with M-15 grade (nominal mix 1:2:4 with broken stone aggregate up to20mm size) of cement concrete and required reinforcement tied in position with annealed black wire including centering, moulding the top, curing including painting concrete surfaces in 23cm strips upto 0.75m from the top alternately in black and white and having 2 nos. reflectiveband of desired shade etc. complete as per design and as directed.16.28(b).15 cm dia. RCC guard post with reinforcement of 4nos. 12mm dia TMT main steel bars and 6mm TMT/ MS stirrups at 15cm c/c

Earth work in bank trimming to the designed section / slope by mechanical means including removing the trimmed soils to a minimum distance of 30m , complete as directed.

Earth work in excavation of drainage channel by mechanical means to the proper grade and slopes as required including disposing the excavated debris/soil to a safe distance of minimum 50 m distance, etc. complete as directed. For lead up to 50 m and all lifts

Supply of Geo- textile bags of type-A ( 1.03 x 0.70 )m inner to inner made of geo-textile non woven febric sheets of 400GSM manufactured from 100% virgin polypropylene (PP) fibre with minimum properties as per IS 16653:2017 (i) Wide Tensile strength(MD) ≥20 KN/M & Wide Tensile strength (CD) ≥20 KN/m (ii)Elongation (MD)≥50% & Elongation (CD)≥50% (iii) Abrasion ≥ 95% (iv) Trapezoidal Tear Strength (MD)≥ 450N & Trapezoidal Tear Strength (CD) ≥ 450 N (v).CBR puncture strength 4000 N (vi) Permitivity ≥ 1.10s-1 (vii).Permeability ≥ 401/m2/sec.(viii). AOS ≤75 micron.(ix). UV Resistance @500 hours retained Tensile strength (MD) & CD≥ 80% (x). Mass ≥ 400 gm/m2(Xi).Thickness at 2 Kpa ≥ 3mm (xii). Seam strength ≥ 80% of actual fabric strength.with name of manufactureer , Batch Number ,the GSM and type of polymer encrypted and stitched on top corner and each bag is to be marked with "WRD Govt of Assam " to be printed distncctly. Test Certificate from approved NABL accredited and ISO ( Certified Laboratory should invariably be submitted against each batch of material)

Carriage of Geo bags of size 1.03m x 0.70m including loading & unloading , stacking etc. Complete and including hire charge of truck with driver and handyman cost of POLetc. Complete as directed. ( Distance to be calculated from divisional Store)

Supply of Geo- bags of type-B (2.00 m x 1.50 m inner to inner)(Pillow type) made of composite layers of polypropylene (PP) fibre as per IS 16653:2017 for Nonwoven and IS 16654:2017 for Woven:Woven Geo-Textile for the outer cover (300gsm): The woven geo textile is woven with multifilament woven fabric manufactured from ultra voilet stabilized polypropylene. Geo-textile used to manufacture geo-textile bags should have high mechanical properties for enhanced durability along with enhanced puncture, abrasion and U.V. resistance characteristics. Geo textile should be inert to biological degradation and resistant tonaturally encountered chemicals, alkalis, and acids.Properties:- (i) Tensile strength(MD) ≥80 KN/M & Tensile strength (CD) ≥70 KN/m (ii)Elongation (MD)≥25 % & Elongation (CD)≥25 % (iii) Abrasion ≥ 75% (iv) Trapezoidal Tear Strength (MD)≥ 1500 N & Trapezoidal Tear Strength (CD)≥1300 N (v). CBR puncture strength 900 N (vi) Permeability ≥ 181/m2/sec. (vii). AOS ≤250 micron.(viii). UV Resistance @500 hours retained Tensile strength (MD) & (CD) ≥ 80% (ix). Mass ≥ 300gm/m2. (x). Seam strength ≥ 50% of actual fabric strength.Non-Woven Geo-textile for the inner layer (300gsm): It is needle punched non-woven geo-textile made of 100% polypropylene staple fibres which are formed in to a random network for dimensional stability. It should resist UV degradation, rotting and alkalis.i) Wide Tensile strength(MD) ≥15 KN/M & Tensile strength (CD) ≥15 KN/m (ii)Elongation (MD)≥50 % & Elongation (CD)≥50 % (iii) Abrasion ≥ 95% (iv) Trapezoidal Tear Strength (MD)≥ 340 N & Trapezoidal Tear Strength (CD)≥ 340 N (v). CBR puncture strength 3000 N (vi)Permittivity≥1.25 (vii) Permeability ≥ 601/m2/sec. (viii). AOS ≤ 75 micron.(ix). UV Resistance @500 hours retained Tensile strength (MD) & (CD) ≥ 80% (x). Mass ≥ 300gm/m2. (xi). Thickness at 2KPa ≥3mm (xii). Seam strength ≥ 80% of actual fabric strength.Stitching of Bags should be Ring spun yarn stitches with 2500-3000 denier double line chain stitch with overlap with stitches along the edge.( Bags are to be supplied of 15 numbers in a bundle, properly packed with each bag having proper tag with name of manufacturer ,batch number, the GSM and type of polymer encrypted and stitched on top corner and each bag is to be marked with "WRD Govt of ASSAM” to be printed distinctly. Test Certificate from approved NABL accredited and ISO Certified Laboratory should invariably be submitted against each batch of material.

Carriage of Geo bags of size 2.00x1.50m including loading & unloading , stacking , cost of P.O.L etc. Complete and including hire charge of truck with driver and handyman,etc. Complete as directed. ( Distance to be calculated from Divisional Store)

Construction and supply of Wire -netting box of size 1.50 m × 1.50 m × 0.45 m made with mechanically woven, double twisted, hexagonal shaped wire mesh with wire made of low carbon, high ductile MS wire with heavy class of galvanization with an additional layer of PVC coating with mesh type of 10 × 12 as per EN 10223 & ASTM A975, mesh wire of 2.70 mm (I.D) /3.70 mm (OD) tensile strength of 450-500/mm2, edge wire selvedge around it at least 2.5 times, lacing wire (Zinc PVC coated) of 2.20 mm (I.D)/3.20mm (OD), VC coating thickness of 0.50mm nominal, 0.38 mm minimum, Mesh opening size 150mm × 150mm and with average weight per unit being 12 Kg with additional 3% of the weight of box for lacing wire supplied separately, supporting the facing of the box with zinc coated steel wire of required length as directed, complying with ASTM and European norms.

Supply of non-woven Geo-textile fabric sheets of 300 GSM manufactured from 100% virgin Polypropylene (PP) fibre with minimum properties as per IS 16653:2017 (i) Wide Tensile strength(MD) ≥15 KN/M & Tensile strength (CD) ≥15 KN/m (ii)Elongation (MD)≥50 % & Elongation (CD)≥50 % (iii) Abrasion ≥ 95% (iv) Trapezoidal Tear Strength (MD)≥ 340 N & Trapezoidal Tear Strength (CD)≥340 N (v). CBR puncture strength ≥ 3000 N (vi) Permittivity ≥ 1.25s-1. (vii). Permeability ≥ 601/m2/sec. (viii). AOS ≤75 micron.(ix). UV Resistance & 500 retained Tensile strength (MD) & (CD) ≥ 80% (x). Mass ≥ 300gm/m2. (xi). Thickness at 2KP≥ 3mm. (Each Roll of Geo Fabric Sheet should be supplied in properly packed Bundles and should be marked with the Name of Manufacturer , Batch Number & its dimensions clearly on each roll with “WRD Govt of ASSAM” to be printed on it and mentioning properly the GSM and type of polymer and Test Certificate from approved NABL accredited and ISO Certified Laboratory should invariably be submitted against each batch of material)

Carriage of 300 gsm Geo sheet of including loading & unloading , stacking , cost of P.O.L etc. Complete and including hire charge of truck with driver and handyman etc. Complete as directed. ( Distance to be calculated from Divisional store)

Filling and laying of Geo bags of size 1.03m X 0.70m excluding excavation of sand/ silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand/silt having minimum weighing 126.00 Kg and minimum volume 0.084 cum after filling , double locking chain stitching the mouth of the filled bags with polypropylene thread by power driven double needle double stitched machine, stacking the same in batches of 100, carrying the same to the dumping site including all handling charges and local carriage within a distance of 150m and laying properly as directed. (Sand/ silt ,Geo Bag and Polypropylene thread will be supplied by the department free of cost) (1).Without Boat

Filling and laying of Geo bags of size 1.03m X 0.70m including excavation of sand/ silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand/silt having minimum weighing 126.00 Kg and minimum volume 0.084 cum after filling , double locking chain stitching the mouth of the filled bags with polypropylene thread by power driven double needle double stitched machine, stacking the same in batches of 100, carrying the same to the dumping site including all handling charges and local carriage within a distance of 150m and laying properly as directed. (Sand/ silt ,Geo Bag and Polypropylene thread will be supplied by the department free of cost) (1).With Engine Boat

Filling and laying in PVC coated W.N. Box of size 1.5m x 1.5m x 0.45m with sand/silt filled Geo bags of size 1.03m × 0.70m excluding excavation of sand/silt, filling geo bags with sand/silt, having minimum weighing 126.00 Kg and minimum volume 0.084 Cum after filling, double locking chain stitching the mouth of the filled bags with polypropylene thread by power driven double needle machine, stacking the same in batches of 100, carrying the same to the dumping site, including all handling charges and local carriage within a distance of 150m and laying properly in PVC coated W.N. Box, complete as directed. 1) Without Boat

Filling and laying of nonwoven Geo-textile bag of dimension 2.00m x 1.50m including excavation of specified sand/ silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand having minimum volume 0.612 cum after filling , double locking chain stitching the mouth of the filled bags with polypropylene thread by power driven double needle double stitched machine, laying at proper site including all handling charges and local carriage within a distance of 100m complete as directed. (Geo Bag and Polypropylene thread will be supplied by the department free of cost) With Engine Boat

Collection and supply of sand from approved quarry of specified grade for construction work free from debriges and other foreign material etc. complete as directed.

Labour charge for laying Geo-fabric sheet as filter bellow pitching including carrying, lapping,wrapping & stitching as directed by the Engineer-in-Charge

Supply of sewing Thread/Yarn PPMF Stitching Thread( 2000 Den. Kaplon) including payment of taxes.

SURESH KUMAR AGARWALLA (BID ID -258962)