Rejuvenation of Kolong River- Construction of Intake and Appurtenant Structures (Ph-I-F)

Amount

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

Collection of blasted boulder of size 23cm. to 30cm in average and minimum weight 30Kg having (i) specific gravity not less than 2.65 and Materials properties of conforming to IS 2386 part III & IV 1963 and Free from dust, dirt and other foreign materials including local carriage and stacking in regular measurable stacks of approximate 1(one) m. height at site, payment of forest royalty, etc. complete as directed (10% under sized boulder is allowable for packing/filling the gaps occurred during execution of works) .(15% deduction will be made from the stack measured quantities on account of void)

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

Labour charge for dumping boulder in cage made of wire netting sheets of size 2.57x1.66m of 8G galvanized wire making the cage from 2 nos. of wire netting sheet by tying the projected wires ( wire netting sheet supplied by the department free of cost within 150m of work site) filling boulder inside in cage launching the same in position as directed including all handling charges and including site carriage of boulder from stack yard/ dump site within a distance of 150m. etc. complete as directed Without Boat

Labour charge for laying and pitching boulder of 23 cm to 30cm size (man size) including dressing the seat, ramming to proper size & slope, properly hand packed including site carriage of boulder from stacks within a distance of 150m etc. complete as directed..

Labour charge for loose dumping boulder of 23cm. to 30cm. size in loose in eroded portion of river bank/ bed including handling charge and including site carriage of boulder from stack yard/ dump site within a distance of 150 m.etc. complete as directed. Without Boat

Preparation of stack yard of boulder/metal etc. including cutting light jungles and removing the same to a safe distance, leveling the ground, filling up depressions etc. complete as directed

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 Guwahati)

Earthwork 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

Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 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 backfilling in trenches with excavated suitable material. V Marshy soil

Supply of wire netting sheet of size made of 8 G wire 152 mm (6”) square mesh in sheets of overall size 2.57 x 1.66 m including 75 mm projection of each wire on all sides beyond the net size of 2.42 m x 1.5 m including loading, unloading, stacking properly, complete as directed.