Immediate measures to the dyke along L/B of river Sonai from S. M. Road to Dharmikhal under SDRF for the year 2019-20 (Restoration of breach like damages at Nagdhirgram Pt.-II)

Amount

Labour for preparation of site by clearing light jungles/debris, night soil, deformed logs, bamboo, broken glass/dish other waste materials and jungles etc. and removing the same from the work site.

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

Filling and laying in cage with silt filled Geo bags of size 1.03m X 0.70m including 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 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 thread will be supplied by the department free of cost). Without boat

Filling and laying of Geo bags of size 1.03m X 0.70m including 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. (Geo Bag and Polypropylene thread will be supplied by the department free of cost). Without boat

Filling and laying of Geo bags of size 1.03m X 0.70m including 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. (Geo Bag and Polypropylene thread will be supplied by the department free of cost) With boat

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

Collection and supply of brick bats 10-40mm size to work site including loading, unloading transportation and stacking in measurable stacks including sale tax, compensation if any, 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

Carriage of Geo Bag of size 1.03X0.70 m including loading and unloading, stacking, cost of POL etc. complete and including hire charge of truck with driver and handyman, complete as directed. Distance from Guwahati to Silchar is 400.00 KM and Silchar to work site 30 KM

Carriage of 300 GSM Geo-sheet of including loading and unloading, stacking, cost of POL etc. complete and including hire charge of truck with driver and handyman complete as directed. Distance from Guwahati to Silchar is 400.00 KM and Silchar to work site 30 KM

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

Local carriage of boulder, metal, gravel/sand etc. from the approachable site beyond 150m and up to 3.00Km from the work site including loading from stack and unloading at work site with 10 (ten) ton capacity truck, supplying P.O.L. etc. complete as directed.

Earth work in excavation of foundation of filter drain/Cutoff wall in all kinds of soil to the designed section and level along the river bank slope including depositing the spoils in safe distance including wooden shuttering and with all lead and lift etc complete as directed .

Labour for filling the inverted filter drain both horizontal/vertical drain/filter medium with Brick Bats / river shingles of size 10-38mm to the designed section and levels including local carriage of materials from a distance of 150m complete as directed.

Supplying of Galv. wire netting sheets of size 2.57 X 1.67 m made of 8 G wire of 152mm Sq. mesh including 76 mm projection of each wire on all side beyond the net size of 2.42m x1.51 mm including labour charge for loading, unloading, stacking cost of P.O.L. and all taxes etc. complete as directed . ( weight of each sheet not less than 6.30kg)

Carriage of wire netting sheets of size 2.57 X 1.67 m made of 8 G wire of 152mm Sq. mesh including loading & unloading, stacking, cost of POL , etc complete and including hire charge of truck with driver and handyman complete as directed. (From Store to site=30.00KM)

Supply of Swing thread / yarn PPMF stitching thread (2000Den Kaplon) including payment of taxes

Earthwork in bank trimming to the designed section /slope including removing the soils at a safe distance, complete as directed.

Earth work in embankment by truck carriage in ordinary / normanl soil excluding sandy and rocky soil free from roots and vegetation and filling in uniform layers not exceeding 22 cm thick including ploughing or rougheing or belching the seats, removing all debries breaking clods up to 2.5cm 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 on account of shrinkage). For initial lead beyond 8.00km and upto 10.00km and all lifts.

Earth work in embankment by truck carriage in ordinary/normal soil excluding sandy and rocky soil free from roots & vegetation and stacking in regular measurable stacks at suitable places including clearing and levelling the stacking site, breaking clods up to 2.5cm cube, payment of forest royalty if any, etc. ( 12.50 % deduction will be made from measured quantities on account of shrinkage) For initial lead beyond 8.00Km and up to 10.00 Km and lifts

Spreading of earth stacks over the crest and slope of the embankment and palaces as directed in uniform layer of 22.50 cm thick including breaking clods, dressing , ramming etc complete where necessary including dressing the embankment before complete as directed

Construction of temporary shed of two roof with mud plinth 0.45m height above G.L. with Bhaluka Bamboo post 1.50 m apart driven at least 0.75m below ground and height above plinth 2.50m. Split jatti bamboo wall mud plastering & white washing two coats & 10cm thick thoch roofing over bamboo barua frame placing at 0.15cm clear apart fitted with bamboo kamies from binding doors & windows with bamboo chattai strengthening with bamboo frame binding with wire etc. cpmplete as directed [Using Bhaluka bamboo at the rate of 6.00 nos./Rm and Jati bamboo at the rate of 61.00 Nos./Rm].

NAZIR HUSSAIN LASKAR