AE works at different reaches at down stream Uttar Barpukhuri area river Kawadanga on its banks under RIDF NABARD-XXV

Amount

Earthwork in bank trimming to the designed section /slope including removing the soils at a safe distance, complete as directed.

Supply of Geo-textile bags of type-A (1.03X0.70M) made of Geo-textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin Polypropylene (PP) fibre having thickness not less than 3.00 mm with minimum properties as (i) Tensile strength (CD) ≥ 24 KN/m (ii) Tensile strength (MD) ≥ 22 KN/m (ii) Mass ≥ 400.00 Gm/m ² (iii) CBR Puncture strength ≥ 4100 N/m2 (iv) Elongation @ break (Warp) ≥ 54% (v) Elongation @ break (Weft)≥ 52% (vi) Abrasion ≥ 70 % (vii) UV Resistance @ 500 hours ≥ 70% (viii) AOS ≤ 75 micron (ix) Permittivity ≥ 1.25, (x) Trapezoidal Tear Strength ≤ 520 N (xi) Permeability = 45Lt/m2/sec (xii) Seam strength = 80 % of geotextiles 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 @ minimum 15 stitches per 100 mm. (Bags are to be supplied of 100 numbers or part in a bundle, properly packed with name of Manufacturer and Batch Number is to be marked on each bag with “WRD Govt of ASSAM” to be printed on each bag and mentioning properly the GSM and type of Geo bag polymer. Test Certificate from approved NABL accredited and ISO Certified Laboratory should invariably be submitted against each batch of material).

Carriage of Geo Bag of size (1.03x 0.70m) including loading, unloading and stacking including cost of POL etc. complete hire charge of Truck with driver and Handyman complete as directed.( Distance to be calculated from Guwahati).

Supplying of Galvd. Wire netting sheets made of 8G. Wire of 152mm (6”) square mesh in sheet of overall size 2.57 x 1.66 m(8'-6" x 5'-6") including 76mm projection on each wire on all sides beyond the net size (8'-5') 2.4m x 1.51m having knots of 12 gauge at every joint including loading, unloading and stacking properly complee as directed by the deptt.

Supply of Sewing Thread/Yarn PPMF Stitching Thread (2000 Den. Kaplon) i/c payment of taxes

Collection and supply of river silt by truck carriage free from debries and other foreign materials payment of forest royalty if any etc. (For initial lead beyond 1/2 Km and upto 4.00Km for all lifts.)

Filling and laying of Geo bags of size 1.03m x 0.70m excluding excavation of specified silt from flood plain or adjacent chars within a distance of 90m of hte work site, filling geo bags with sand 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 incoluding all handling charges and local carriage within a distance of 150m and laying properly as directed (Silt, Geo Bag and Polypropylene thread will be supplied by the department free of cost) a) Without boat.

Filling and laying cage with silt filled Geo Begs of size 1.03 x 0.70 M excluding excavation of specified silt from flood plain or adjacent char with in a distance of 90 M from the work site and filling with sand , weighing 126 KG and minimum volume 0.084cum 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 any local carriage within a distance of 150 M and laying properly in cages made of wire netting sheet of size 2.57x1.66m of 8G galved wire making the cage from 2nos of wire netting sheets by tying the projected wire complete as directed (Geo bags, wire netting sheet and Polypropylene thread will be supplied by the Deptt. free of cost ). With boat

Bichitra Baruah

SRI TIRTHA RAM BORO