Flood Mitigation by capacity augmentation of Morisutitup Beel, Morigaon, Assam, Package 1.

Supply of Geo-textile bags of type-A (1.03 × 0.70M) inner to inner made of Geo-textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin Polypropylene (PP) fibre with minimum properties as per IS 16653 : 2017 (i) Wide Tensile strength(MD) ≥20KN/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) ≥450N (v)CBR Puncture strength≥4000N (vi)Permittivity≥1.10s-1 (vii)Permeability≥40l/m2/sec (viii)AOS ≤75micron (ix) UV Resistance @500 hours retained Tensile strength (MD) & (CD) ≥ 80% (x)Mass≥400 gm/m² (xi) Thickness at 2 KPa≥3 mm (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 @ minimum 15 stitches per 100mm. (Bags are to be supplied of 100 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)

Supply of Galvanized Wire Netting Sheet made of 8 SWG wire 152mm square mesh in sheet 2.57m x 1.66m with longitudinal wire at 152 mm center and 76mm projection of each wire on all sides beyong the net size of 2.42m x 1.5m having knots of 12 SWG at every joints, weight of each sheet should not be less than 6.3 kg/ sheet.

Supply of Sewing Thread/Yarn PPMF Stitching Thread (2000 Den. Kaplon)

Filling and laying in cage with sand/silt filled 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 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 cages made of wire netting sheets of size 2.57x1.66m of 8G galvanized wire making the cage from 2nos. of wire netting sheet by tying the projected wires complete as directed. (Geo Bag , Wire Netting Sheets and Polypropylene thread will be supplied by the department free of cost) Without Boat

Earth work in excavation by hydraulic excavator, to proper grade and slopes as required including utilizing the spoils for filling works in the vicinity including removing roots & vegetation, dressing to design section etc. complete as directed. Ordinary Soil , For depth up to 3.00m

Compaction of soil/WMM with Vibratory roller 80-100 kN

Supply of geo-textile Tube (Mega containers) with minimum properties as mentioned below: * Polymer = PP of 400 GSM or above * Tube Circumference = 10 M + 5% * Fill Port (diameter) = 30 to 45 CM * Tensile Strength (MD) ≥ 100 kN/m * Tensile Strength (CD) ≥ 100 kN/m * Elongation- MD ≤ 25% * AOS ≤ 0.180 mm * Permittivity ≥ 0.40 5-1 * Length = 25 M

Filling of geotubes (25m long and 10m circumference) with sand/silt of volume 176 CuM by using mud pump not below the fill height of 1.60 m as per drawing and technical specification, binding the tube with 9mm nylon rope to jati bamboo pegs of length 2m placed 5m c/c along both sides of the tube and at both ends to keep the tube in position during filling, as specified and directed including all loading, unloading and handling charges and local carriage upto a distance of 250M, pumping slurry using mud pump from a distance upto 500m, etc. including setting up of the tube laying platform, complete as directed

Earthwork in excavation for structures as per drawing and technical specifications Clause305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and back filling in trenches with excavated suitable material. V) Marshy soil

Excavation for Structures (Earthwork in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material. B) Mechanical Means (ii) With dewatering i) Depth upto 3 m