Immediate measures for re-construction of breach of embankment at Barpathar and improvement of Putimari L/B embkt. from 0.00 Km. to 4th Km. under SDRF for 2020-21

Amount

Clearing light jungles and trees up to 15 cm. girth including Cutting, uprooting roots and stumps, removing them from the site of the work, etc. complete as directed.( When 30% of the area is covered by shrubs, trees etc).

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

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

Supply of Geo textile bags of type –A (1.03 × 0.70 m) made of Geo textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin Polypropylene (PP) fiber 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 (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 = 45 Lt/m2/sec (xii) Seam strength = 80% of geo textile 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 m.(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. 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 invariable be submitted against each batch of material). Including carriage of Geo from to work site @Rs 2.17

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 Guwahati).

Supplying of Galved hexagonal wire netting sheets made of 8G wire of 152 mm (6”) square mesh in sheets of overall size 2.57 m × 1.66 m (8’-6” × 5’-6”) including 76mm projection on ieach wire on all sides beyond the net site (8' x 5') 2.5m x 1.5m having knots of 12 gauge at every joints including loading, unloading and stacking properly complete as directed by the Deptt. (Weight of each sheet should not be less than 6.30 kg.)

Carriage of wire netting sheets of size 2.57 X 1.66 m made of 8 G wire of 152mm Sq. mesh including loading & unloading , Stacking cost of P.O.L. ,etc. complete and including hire charge of truck with driver and handyman completed as directed.

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

Filling and laying in cage with silt filled Geo bags of size 1.03m X 0.70m excluding 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. (Silt, Geo Bag, Wire Netting Sheets and Polypropylene thread will be supplied by the department free of cost).

Earth work in embankment by Tractor carraige 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 1/2 Km and upto 2.00 km for all lifts.

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.

Supply of sewing tread/yarn PPMF stitching thread (2000 Den) Kaplon including paymnet of taxes (inclusive of labour cess 1%)

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).