Immediate measures to recoupment of various damage reaches and closing of breach of Charaipani bundh both banks from Natunmati to Kakodunga outfall under SDRF for the year 2019-20

Amount

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

Uprooting bamboo clumps where bamboo have already been removed including removing stumps to a distance as directed.

Construction of whole bamboo single pallisading with matured Bhaluka bamboo stacks of 7.5cm to 100mm dia. ,15 cm clear apart driven 1.50m to 1.80m above ground and 1.00m to 1.20m below ground with Bhaluka bamboo inclinned struts placed at 1.5m a part tied with three rows of horizontal half Jati bamboo kamies etc. complete as diracted.(Using Bhaluka bamboo at the rate of 10.14 nos/Rm & Jati bamboo at the rate of 2.40 nos/Rm)

Supply of serviciable empty cement bags.

Labour charge for laying and pitching of 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 department free of cost) a. For borrowing earth from a distance up to 30m.

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 galvanised wire of 16 G to 18G 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)

Earth work in embankment by truck carriage in ordinary/ normal soil excluding rocky soil free from roots and vegetations and filling in uniform layers not exceeding 22cm. thick including cutting and ploughing or roughening or benching the seat , removing all debries,breaking clods up to 2.5cm cube, dressing as per design section including payment of forest royality if any etc. Complete as directed. ( 10 % deduction will be made from the section measured quantites of the completed and compacted section earth work on account of shrinkage.) For initial lead beyond 1/2 Km and up to 4.00 Km. and for all lifts

Labour for ramming with cast iron rammer to proper compaction including watering if necessary etc. Complete as directed. i) Ordinary soil

Earth work in embankment by truck carriage in ordinary/normal soil excluding sandy and rocky soil free from roots& vegitation 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 up to 4.00 Km and all lifts.)

Spreading of earth stacks overr the crest and slopes of the embankment and places as directed in uniform layer of 22 Cm. thick including breaking clods, dressing , ramming etc. complete where necessary including dressing the embankment before 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 ( 1.03 x 0.70 )m made of geo-textile non woven febric sheets of 400GSM manufactured from 100% virgin polypropylene (PP) fibre with minimum properties as (i) Tensile strength(CD) = >24 KN/M (ii) Tensile strength(MD) = >22 KN/M(iii) mass. 400.00Gm/m (iv) CBR puncture strength 4100 N/m2 (v) Elongation @ break (Warp.) >54% (vi) Elongation @ break (Weft.) >52% (vii) Abration >70 % (viii)UV resistance @500 hours >70% (ix) AOC . 75micron (x) Permitivity >1.25 (xi) Trapezoidal Tear 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 100mm ( Bags are to be supplied of 100 numbers or part in a bundle , properly packed with name of manufacturer and batch no is to be marked on each bag with "WRD Govt. of Assam " to be printed on each bags as mentioned properly the GSM and type of geo bag polymer test certified from approval NABL accerdited and ISO certified laboratory should invaribly be submitted against each batch material) FOR GUWAHATI

Carriage of Geo bags of size 1.03m x 0.70m including loading & unloading , stacking , cost of P.O.L etc. Complete and including hire charge of truck with driver and handyman . Complete as directed. ( Distance to be calculated with respect to FOR Guwahati)

Supply of Geo- textile bags of type-B (2.00 m x 1.50 m )inner dimension made of composite layers of geo-textile as per specification below: Woven Geo-textile for the outer cover. The woven geo textile is woven with UV resistant slit film tape fibre with MAVR values of the following properties. Geo-textile used to manufacture geo-textile bags should have high mechanical properties for enhanced durability along with enhanced puncture, abrasion and U.V. resistance characteristics. Geo textile should be inert to biological degradation and resistant tonaturally encountered chemicals, alkalis, and acids. Weight (ISO-9864/ASTMD 5261) ≥250 Gms/Sqm. Tensile strength(MD) ( ASTMD 4595) = ≥35 kN/m Tensile strength(CD) ( ASTMD 4595) = ≥35 kN/m Tensile Elongation ( ASTMD 4595)= ≥5% ≤30% Tensile strength ( ASTMD 4632) = 1.5 Kn UV resistance( ASTMD 4355) = 70%/500 hrs Non woven Geo-textile for the inner layer It is needle punched non woven geo-textile made of 100% polypropylene staple fibers which areformed into a random network for dimensional stability. It should resist UV degradation, rotting and alkalis. Weight (ISO-9864/ASTMD 5261) ≥ 300 Gms/Sqm. Tensile strength(MD) (ASTMD 4595) = ≥12 kN/m Tensile strength(CD) (ASTMD 4595) = ≥12 kN/m Tensile Elongation (ASTMD 4595)= ≥5% ≤30% Grab Elongation (ASTMD 4632)= ≥5% ≤30% Tensile strength (ASTMD 4632) = 1.5kN UV resistance (ASTMD 4355) = 70%/500 hrs (Bags are to be supplied of 100 numbers or part on a bundle , properly packed with the Name of Manufacturer & Batch Number is to be marked on each bag "WRD Govt of ASSAM” to be printed on it and mentioning properly the GSM and types 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

Carriage of Geo bags of size 2.00x1.50m including loading & unloading , stacking , cost of P.O.L etc. Complete and including hire charge of truck with driver and handyman . Complete as directed. ( Distance to be calculated with respect to FOR Guwahati)

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 300 gsm Geo sheet including loading & unloading , stacking , cost of P.O.L etc. Complete and including hire charge of truck with driver and handyman . Complete as directed. ( Distance to be calculated with respect to FOR Guwahati)

Filling and laying of Geo bags of size 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 with sand weighing 126.00 Kg after filling ,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 as directed. (Sand,Geo Bag and Polypropylene thread will be supplied by the department free of cost) a) Without boat

Filling and laying of nonwoven Geo-textile bag of dimension 2.00mx1.50m excluding excavation of specified sand from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with sand ,stitching the mouth of the filled bags with polypropylene thread by power driven double needle machine, laying at proper site including all handling charges and local carriage within a distance of 100m complete as directed. ( Sand, Geo Bag and Polypropylene thread will be supplied by the department free of cost) a) Without boat

Collection and supply of sand from approved quarry of specified grade by truck carraige free from debries and other foreign material including payment of forest royelty /sales tax etc.(For initial Lead beyond 1/2 Km and upto 4.00 km for all lifts.)

Labour charge for laying Geofabric sheet as filter below pitching including anchoring and complete as directed.

Supply of sewing Thread/Yarn PPMF Stitching Thread( 2000 Den. Kaplon) including payment of taxes.

Construction of temporary shed two roofed with mud plinth of 0.45m height above ground level with Bhaluka bamboo posts 1.5m apart driven at least 0.75m below ground and height above plinth 2.50m spilt Jati bamboo walls mud plastering , white washing two coats, 10 cm thick thatch roofing over bamboo rua frame placing at 0.15m clear apart fitted with bamboo kamies frame 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 6.00nos/Rm & Jati Bamboo at the rate of 61.00nos/Rm.)

Supply of ordinary labour inclusive of all taxes.

SANJIB BORUAH