Raising and strengthening of extension of embankment along both banks of River Longai from Chankhira PWD bridge to Katabari (Ph-I)

Amount

Thick jungles: Clearing thick jungles and trees up to 50 cm in girth uprooting roots and stumps, removing them from the site of the work etc. complete as directed. When more than 60% of the area is covered by shrubs, trees etc.)

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

Supplying of galv. wire netting sheets of size 2.57 X 1.67 m made of 8 G wire of 152 mm sq. mesh including 76 mm projection of each wire on all side beyond the net size of 2.42 m X 1.51 m including labour charge for loading unloading stacking cost of P.O.L.

Excavation of drainage channel to the proper grade and slopes as required including deposing the excavated debris/soil to a safe distance of beyond 100 m distance as directed. Wet and sticky soil (For a lead upto 30 m and all lifts)

Supply of Geo-textile bag of type – A (1.03 x 0.700 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, Tensile strength(MD)≥22KN/m (ii) Mass ≥400.00 Gm/m2 (iii) CBR Puncture strength ≥4100 N/ m2 (iv) Elongation @ break (Warp) ≥ 54% (v) Elongation @ break (Weft) ≥ 52% (vi) Abrasion ≥ 70%(vii) UV Resistance @ 500 hours ≥ 70% ((viii) AOS≤ 75 micron (ix) Permittivity ≥ 1.25 (x) Trapezoidal Tear Strength ≤520 N (xi) Permeability 45Lt/m2/sec (xii) Seam strength = 80 % of geo-textile strength. Stitching of gabs 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)

Carriage of Geo Bags of size1.03 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 FORGuwahati)

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

Filling and laying in cage with silt filled Geo-bags of size 1.03 m x 0.70 m including excavation of specified silt from flood plain or adjacent chors within a distance of 90 m 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 150 m and laying properly in cages made of wire netting sheets of size 2.57 x 1.66 m of 8G galvanized wire making the cage from two nos. of wire netting sheets by tying the projected wires complete as directed.(Geo bag, wire netting sheet and polypropylene thread will be supplied by the deptt. Free of cost.) a) Without boat

Filling and laying of Geo-bags of size 1.03 m x 0.70 m including excavation of specified silt from flood plain or adjacent chors within a distance of 90 m 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 150 m and laying properly as directed.(Geo bag and polypropylene thread will be supplied by the deptt. Free of cost.) a) Without boat

Filling and laying of Geo-bags of size 1.03 m x 0.70 m including excavation of specified silt from flood plain or adjacent chors within a distance of 90 m 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 150 m and laying properly as directed.(Geo bag and polypropylene thread will be supplied by the deptt. Free of cost.) a) With boat

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

Earthwork in embankment by truck carriage in locally available ordinary/normal soil excluding rocky soil free from roots & vegetation and filling in uniform layers not exceeding 22cm. thick including ploughing or roughening or benching the seats, removing all debris, 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 section earth work on account of shrinkage) For initial lead beyond 6 Km and up to 8.00 Km and for all lifts

Construction of double bamboo spur 1.50 M width whole barua bamboo posts 7.50 cm to 10 cm dia placed 15cm clear apart driven 1.40 m to 1.60 m below ground and 2.80 m to 3.20 m above ground tied with wire/cane of 16 G to 18 G wire strengthening with jungle wood post of size 20 - 25 cm dia driven 1.80 - 2.20 m below ground by hand shaking and 2.80 - 3.20 m above ground at 1.50 m apart inside spur and providing double collar bottom against each row of posts fixing with patent nails including providing 3 row of horizontal bamboo runner in all sides fixing by patent nails with jungle wood post and providing 1/2 jati bamboo kamies 3 rows tied with cane/ wire on all sides and fitting inside the spur with brush wood packed tied with wire as directed.

Construction of temporary shed of two roof with mud plinth of 0.45 m height above ground level with Bhaluka bamboo post 1.5 m apart driven at a least 0.75 m below ground and height above plinth 2.5m. Split Jatti bamboo wall mud plastering white washing 2 coats, 10 cm thick touch roofing over bamboo rua frame placing at 0.15 m clear apart fitted with bamboo kamies from binding doors and windows with Bamboo Chattai strengthening with Bamboo frame binding with wire etc. complete as directed. (Using Bhaluka bamboo at the rate of 6.00 nos/ Rm &Jati Bamboo at the rate of 61.00 nos/ Rm).

NURUL ISLAM LASKAR

SWADESH RANJAN PAUL AND JAHAR PAUL JV

Pintu Deb