Flood management by Capacity Augmentation of Fekalai Wetland area for flood regulation.

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 1) Normal Soil

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 1) Wet & Sticky Soil

Earthwork in grabbing the seat of the embankment up-to 0.3 m depth by mechanical means and depositing the soils outside the country side toe of the proposed structures, etc. complete as directed.

Supply of geo textile tube (Mega Container) with the minimum properties as mentioned below: Polymer: PP of 400 GSM or above Tube Circumference: 10m + 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 S-1 Length: 25 m

Filling of geo-tubes (25m long and 10m circumference) with sand/silt of volume 176 cum by using mud pump not below the fill height of 1.60m as per drawing and technical specifications, 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 directecd including all loading, unloading and handling charges and local carriage upto a distance of 250M, pumping slurry using mud pump from a distance upto 250m, etc. including setting up of the tube laying platform, complete as directed.

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) ≥15KN/m & Wide Tensile strength (CD) ≥15KN/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 s-1 (vii)Permeability ≥60l/m2/sec , (viii)AOS ≤75micron (ix)UV Resistance @500 hours retained Tensile strength (MD) & (CD) ≥80%, (x) Mass ≥ 300gm/m², (xi)Thickness at 2KPa ≥3mm. (Each Roll of Geo Fabric Sheet should be supplied in properly packed Bundles and should be marked with theName 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. completed as directed. (distance to be claculated from Divisional Store)Distance-14 km

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

Collection and supply of River silt by truck carriage free from debries and other foreign material, etc. complete as directed. By mechanical Means 1) For initial up to 1.00 Km & for all lifts.

Carriage of excavated muddy/slushy soil/garbage by truck of 10 Ton capacity and depositing the same in suitable dumping ground up-to an average lead of 2.50 Km including cost of P.O.L. and loading/unloading charges etc. complete as directed.