Immediate measures for closing of breach to the M/E along L/B of river Kumatiya from NH 15 to Gurathali chapori under SDRF for 2020-21 (From Ch. 3916m to Ch. 4036m at Jungle block)

Amount

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)

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 Geo-textile bags of type-A (1.03X0.70M) 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 (ii) Mass ≥ 400.00 Gm/m ² (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 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 Geobag of size 1.03x0.70 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 from Guwahati to Dhemaji

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 Rin 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 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.(Distancefrom Guwahati to Dhemaji

Supply of galvd. wire netting sheets made of 8G wire of 152mm (6") square mesh in sheets of overall size 2.57m x 1.66m including 76mm projection of each wire on all sides beyond the net size of 2.42m x 1.50m having knots of 12G wire at every joints including loading, unloading, stacking properly complete as directed by the department ( weight of each sheet should not be less than 6.30KG).

Earth work in excavation of drainage channel to the proper grade and slopes as required including desposing the excavated debries/soil to a safe distance of minimum 50 m distance as directed

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 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

Construction of whole bamboo single pallasiding with matured Barua bamboo stacks of 7.5cm to 100 mm dia.,15 cm clear apart driven 1.50m to 1.80m above ground and 1.00m to 1.20m below ground with Barua bamboo inclined struts fixed at 1.50 m apart tied with three rows of horizontal half Bethua bamboo kamies with G.I. wire of 16G to 18G etc. complete as directed.(Using Barua Bamboo at the rate of 10.14 nos/ Rm & Bethua Bamboo at the rate of 2.40 nos / Rm)

Supply of serviceable empty cement bags including all taxes. ( Including 12% GST + 1 % L.C)

Labour charge for laying and pitching earth filled cement bags including excavation and borrowing earth, breaking clods, filling in bags and supplying and stitching the mouth with jute sutli etc. complete as directed ( cement bags will be supplied by the deptt. free of cost ) a. For borrowing earth from a distance up to 30 m.

Construction of whole Bholuka Bamboo Screen with matured Bholuka Bamboo stacks 75mm to 100mm dia, placed at 40 cm clear apart( i.e. 50 cm C/C) driven 3.00 m to 3.50m 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. complete as directed.

Construction of temporrary 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 atleast 0.75 m below ground and height above plint 2.5m. Split Jatti bamboo wall mud plastering white washing 2 coats, 10 cm thick touch roofing over bamboo rua frame pplacing 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 compple as directed. (Using Bhaluka Bamboo at the rate of 6.00 nos/ Rm & Jati Bamboo at the rate of 61.00nos / Rm)

Supply of ordinary labour.

PULIN BORGOHAIN

Mr. Uma Kanta Lahan

Sri Muhi Borgohain

Rajib kr Choudhury -Anuj Chutia JV

BISWAJIT BORAH

DHRUBAJYOTI GOGOI