Anti erosion measures to protect LB of river Borolia at village Niz-Defeli

Amount

Cutting bamboo, uprooting roots &stumps including removing them from the site of work, etc. complete as directed.

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

Supply of Geo Bags Type-B (Size 2.00m x 1.50m)( pillow Type) made of composite layers of geo-textile as per specifications below : Woven Geo-textile for the outer cover. The woven geo textile is woven with UV resistant slit film tape fibre with MAVR values of the following properties. 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 to naturally encountered chemicals, alkalis, and acids. Weight (ISO-9864/ASTMD 5261) ≥300 Gms/Sqm. Tensile strength(MD) ( ASTMD 4595) = ≥35 kN/m Tensile strength(CD) ( ASTMD 4595) = ≥35 kN/m Tensile Elongation ( ASTMD 4595)= ≥5% & ≤30% Grab Elongation ( ASTMD 4632)= ≥5% & ≤30% Tensile strength ( ASTMD 4632) = 1.5 KN UV resistance( ASTMD 4355) = 70%/500 hrs Non woven Geo-textile for the inner layer It is needle punched non woven geo-textile made of 100% polypropylene staple fibers which are formed into a random network for dimensional stability. It should resist UV degradation, rotting and alkalis. Weight (ISO-9864/ASTMD 5261) ≥250 Gms/Sqm. Tensile strength(MD) ( ASTMD 4595) = ≥12 kN/m Tensile strength(CD) ( ASTMD 4595) = ≥12 kN/m Tensile Elongation ( ASTMD 4595)= ≥5% & ≤30% Grab Elongation ( ASTMD 4632)= ≥5% & ≤30% Tensile strength ( ASTMD 4632) = 1.5 KN UV resistance( ASTMD 4355) = 70%/500 hrs (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). FOR GUWAHATI

Carriage of Geo Bags of size 2.00 x 1.50 m 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 caculated from Guwahati)

Supply of Geo-textile bags of type-A (size 1.03 × 0.70 M), inner dimension 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 (iii) Mass ≥ 400.00 Gm/m ² (iv) CBR Puncture strength ≥ 4100 N/m2 (v) Elongation @ break (Warp) ≥ 54% (vi) Elongation @ break (Weft)≥ 52% (vii) Abrasion ≥ 70 % (viii) UV Resistance @ 500 hours ≥ 70% (ix) AOS ≤ 75 micron (x) Permittivity ≥ 1.25, (xi) Trapezoidal Tear Strength ≤ 520 N (xii) Permeability = 45Lt/m2/sec (xiii) Seam strength = 80 % of geo textiles 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). FOR GUWAHATI

Carriage of Geo Bags of size 1.03 × 0.70 m including loading & unloading , Stacking cost of P.O.L. ,etc. complete and including hire charge of truck with driver and handyman completed as directed.(Distance to be calculated with respect to FOR Guwahati. (Distance =8.00 Km)

Supply of Galvanised Wire Netting Sheets made of 8G. wire of 152mm(6/) square mesh in sheets of overall size 2.57x1.66 m (8`6”x5`6”) including 75 mm projection of each wire on all sides beyond the net size 2.42x1.51m having knots of 12G wire at every joints including loading, unloading and stacking properly complete as directed by deptt.(weight of each sheet should not be less than 6.30 Kg)

Carriage of wire netting sheets of size 2.57 × 1.66 m made of 8 G wire of 152mm Sq. mesh including loading & unloading, Stacking cost of P.O.L. ,etc. complete and including hire charge of truck with driver and handyman completed as directed. (Distance = 60.00 Km)

Supply of Sewing Thread/Yarn PPMF stitching Thread (2000 Den Kaplan) I/C payment of taxes.

Filling and laying of nonwoven Geo-textile bag of dimension 2.00mx1.50m including excavation of specified silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with silt, 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 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) Without boat

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)

HARESWAR BARO (BID ID -253979)