Immediate measures to Nonoi L/B embankment from MPK Road to Turai (Breach closing at Alikhapara village , Ch.12600m) under SDRF for the year 2020-21.

Amount

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

Earthwork in grabbing the seat of the embankment. upto 0.3 m depth and depositing the soils outside the country side toe of the proposed structures , etc. complete as directed.

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 embankment to facilitate placement of first layer of embankment,scarified to a depth of 150 mm, mixed with water at OMC and then compacted by rolling so as to achieve minimum dry density as given in Tables 300.1 and 300.2 for embankment construction as per Technical Specification Clause 301.4.1.

Turfing with grass sods of largest possible rectangles of 12 cm. minimum thickness placed closely including dressing earth pagging with Jati bamboo split, watering till the grass grows for a lead up to 90m and all lifts.

Labour charge for clearing white ant nest from the embankment including digging earth, clearing white ant nest, applying anti termite chemical and carrying spoils to a safe distance and filling the pits by fresh earth including ramming, watering etc. Complete as directed.

Earthwork in bank trimming to the designed section /slope including removing the soils at a safe distance, 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) including carriage of Geo Bag from Guwahati to work site

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) including carriage of Geofabric sheet from Guwahati to work site

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

Collection and supply of River silt by truck carriage free fro debries and other foreign material payment of forest royalty if any, etc.(For initial Lead beyond 1/2 Km and upto 4.00 km for all lifts.)

Filling and laying of Geo bags of size 1.03m X0.70m excluding excavation of specified silt from floodplain or adjacent chars within a distance of 90m of thework site, filling geo bags with silt having minimumweighing 126.00 Kg and minimum volume 0.084 cumafter filling ,double locking chain stitching the mouth ofthe filled bags with polypropylene thread by powerdriven double needle double stitched machine, stacking the same in batches of 100, carrying the same to thedumping site including all handling charges and localcarriage within a distance of 150m and laying properlyas directed. (Geo Bag and Polypropylene thread will besupplied by the department free of cost) Without Boat:-

Filling and laying of Geo bags of size 1.03m X0.70m excluding excavation of specified silt from floodplain or adjacent chars within a distance of 90m of thework site, filling geo bags with silt having minimumweighing 126.00 Kg and minimum volume 0.084 cumafter filling ,double locking chain stitching the mouth ofthe filled bags with polypropylene thread by powerdriven double needle double stitched machine, stacking the same in batches of 100, carrying the same to thedumping site including all handling charges and localcarriage within a distance of 150m and laying properlyas directed. (Geo Bag and Polypropylene thread will besupplied by the department free of cost) With Boat:-

Filling and laying in cage with sand filled Geo bags ofsize 1.03m X 0.70m excluding excavation of specified sand from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags withsand 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 2 nos. of wire netting sheet by tying the projected wires complete as directed. (Geo Bag , Wire Netting Sheets and Polypropylene threadwill be supplied by the department free of cost) Without boat

Supply of galvanised wire netting sheets made of 8 G wire of 152mm.(6")square mesh in sheets of overall size 2.57m.X1.66m.(8'-6")including 75mm. Projection of each wire on all sides beyond the net size of 2.42m.X1.31m.(8'-0" X 5'-0")having knots of 12 G wire at every joints including loading, unloading, stacking properly complete as directed by the deptt. (Weight of each sheet should not be less than 6.30 Kg., Taxes extra,Aproved by ASIDC

Carriage of Wire netting sheets of size 2.57x 1.66 m made of 8 G wire of 152 mm squre mesh including loading and unloadiing , stacking , Cost of POL etc. complete and including hire charge of truck with driver and handiman complete as directed . Carriage from Central Godown at Mangaldai W.R. Division to work site .

Labour charge for laying Geo fabric sheet as filter bellow pitching.

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)

DIPAK DEKA

MD JEHERUL HAQUE

Bhaba Kanta Nath

JAGADISH KALITA

NABA-BHUBANESWAR-JV