I M for diversion of oblique channel to its original course at Jamdoha area including recoupment and strengthening of existing road from No.848 Jamdoha L.P.School to No.1 Jaraguri due to flood damage of river Aie under SDRF for 2020-21 RETENDER

Amount

Earth work in embankment by Tractor-trailer carriage in locally available ordinary soil excluding rocky soil free from roots & vegetation and filling in uniform layers not exceeding 22 cm. thick including ploughing or roughening or benching the seats, removing all debries, breaking clods up to 2.5 cm cube, dressing as per design section including payment of forest royalty if any, etc. complete as directed. (10% deduction will be made from the section measured quantities of the completed and compacted earth work on account of shrinkage)

Compacting Original Ground (i) Compacting original ground supporting embankment Loosening, Levelling and Compacting original ground supporting cum 19.80 embankment, scarified to a depth of 150mm, mixed with water at OMC and then compacted by rolling so as to achieve minimum dry density as given in Table 300.1 and 300.2 for embankment construction as per Technical Specification Clause 301.4.1 Qty as per statement Rate =(Rs.19.80+12%GST) + 1%Labour Cess= Rs22.40

Turfing with grass sods of largest possible rectangles of 12 cm minimum thicknesses placed closely including dressing, earth pegging with jati bamboo split, watering till the grass grows for a lead upto 90 m and all lifts.

Earth work in bank trimming to the designed section /slope including removing the soils at a safe distance.

Supply of Geo-textile bags of type-A (1.03X0.70M) made of Geotextile non-woven fabric sheets of 400 GSM manufactured from 100% virgin Polypropylene (PP) fibre with minimum properties as (i) Tensile strength ≥ 12.4 KN/m (ii) Mass ≥ 400.00 Gm/m ² (iii)CBR Puncture strength ≥ 1550 N/m2 (iv) Elongation @ break (Warp) ≥ 54% (v) Elongation @ break (Weft)≥ 52% (vi) Abrasion ≥70 % (vii) UV Resistance @ 500 hours ≥ 70% (viii) AOS ≤ 75micron (ix) Permittivity ≥ 1.25, (x) Trapezoidal Tear Strength ≤ 340N (xi) Permeability = 2.00 x 10 ̄ ³ m/sec (xii) Seam strength = 80 %of geotextiles strength . Stitching of Bag 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 erinted 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 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 to be calculated with respect to FOR Jamdoha ) Dist from Guwahati=170Km @ Rs.0.013bag/Km)

Filling and laying of Geo bags of size 1.03m X 0.70m including excavation of specified sand from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand weighing 126.00 Kg and volume of 0.084 cum after filling ,double locking chain stitching the mouth of the filled bags with polypropylene or polyeste thread by power driven double needle 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. (Geo Bag and Polypropylene thread will be supplied by the department free of cost) . (a) Without Boat

Supply of 9 mm dia. Rope polypropylene gabion of size 2m x 2m x0.45 m having rope weight of 42 gm/m and mesh opening 150 mm x150 mm with tensile strength of 1560 kg.FOR Guwahati.

Carriage of Gabion box of size 2.0mx2.0mx0.45m including loading & unloading, 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 Jamdoha ) Dist from Guwahati=170Km @ Rs.0.132No./Km)

Filling and laying of polypropylene gabion boxes filled with sand filled Geo bags of size 2.0m X 2.0m X 0.45m including excavation of sand from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand weighing 126.00 Kg after filling ,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.(Geo Bag , Wire Netting Sheets and Polypropylene thread will be supplied by the department free of cost)

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

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 to be calculated with respect to FOR Jamdoha ) Dist from Guwahati=170Km @ Rs.0.013Sq.m./Km)

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

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

Construction of whole Bholuka Bamboo Screen with matured Bholuka Bamboo stacks 75mm to 100mm dia, placed at 30 cm clear apart( i.e. 40 cm C/C) driven 4.00 m to 4.50m below ground and 3.0m to 3.50m above ground with hydraulic driving equipments including hire charge of equipment, cost of P.O.L. etc. and providing with 1 (one) row of horizontal half Jati bamboo kamies tied with galvanized wire of 16 G to 18 G etc complete as directed.(Using Bhaluka Bamboo at the rate of 240.00 nos/ Rm & Jati Bamboo at the rate of 9.60 nos / Rm)

Nirendu Roy