Immediate measures to restore Futuri area at D/S of Land spurno. 1 from the flood damage of river Brahmaputra , for the year 2019-20

Amount

Light Jungles: Clearing light jungles and trees upto 15 cm. girth including cutting, uprooting roots and stumps, removing them from the site of the work, etc. complete as directed. (When 30% of the area is covered by shrubs, trees etc).

Cutting bamboo , uprooting roots & stumps including removing them from the site of work, etc. 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 (i) Tensile strength ≥ 12 KN/m (ii) Mass ≥ 300.00 Gm/m ² (iii) CBR Puncture strength ≥ 3.5 KN (iv) Elongation at break ≥ 60% (v) Abrasion ≥ 70 % (vi) UV Resistance @ 500 hours ≥ 70% (vii) AOS ≤ 75 micron (ix) Permittivity ≥ 1.25, (x) Trapezoidal Tear Strength ≤ 340 N (xi) Permeability = 2.00 x 10 ̄ ³ m/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. (Each Roll of Geo Fabric Sheet should be supplied in properly packed Bundles and should be marked with the Name of Manufacturer & Batch Number clearly on each bundle 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) FOR GUWAHATI

Labour charge for laying Geo fabric sheet as filter bellow pitching including anchoring and complete as directed.

Supply of Geo-textile bags of type-A (size 1.03X0.70M), 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 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). FOR GUWAHATI

Supply of galvd. Wire netting sheets made of 8G wire of 152mm (6") square mesh in sheets of overall size 2.57m x 1.66m (8'-6") including 75mm projection of each wire on all sides beyond the net size of 2.42m x 1.31m(8'-0" x 5'-0") having knots of 12G wire at every joints including loading, unloading, stacking properly complete as directed by the department.(weight of each sheet should not be less than 6.30 kg) (taxes extra)

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

Earth work in bank trimming to the designed section / slope including removing the spoils at asafe distance. Complete as directed.

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 complete as directed. Ordinary Soil , For depth up to 3.00m

Filling and laying of Geo bags of size 1.03m X 0.70m excluding excavation of silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with 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. (Silt, Geo Bag and Polypropylene thread will be supplied by the department free of cost). b) With Boat

Providing and laying of plain cement concrete slab of size 0.50m X 0.50mX 0.15m, made in proportion 1:2:4 on trimmed graded slope of river bank including ramming the seat, curing, carriage of the slab from the place of casting to the work site up to a distance of 200m and all handling charges etc. complete as directed.

Labour charge for laying Cement concrete slab of size 0.5m x 0.5mx0.15m of M-15 grade in Wire netting cages of size 1.5m x 1.5m x 0.45m at toe-key level as per drawing and technical specifications etc. complete as directed. (Wire netting sheets to be supplied by the Deptt. free of cost).

Carriage of wire netting sheets of size 2.57 X 1.66 m made of 8G 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 from Division Store to Work site).

Carriage of Geo Bags of size 1.03 x 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 from Guwahati to work site).

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 completed as directed. (Distance from Guwahati to work site)

Ashok Kumar Jain

Ashok Kumar Agarwalla

SURAJIT ROY