Immediate measures to excavation and Re- channelization of Bejijan channel and Ronga Jan under SDMF for the year 2024-25.

Clearing of deposited compact water hyacinth root and other aquatic plants from the bed of drains/channels including cutting, removing and stacking at places away from the bank etc. Complete with all lead and lift etc. complete as directed.

Earthwork in de-siltation of drainage channel to proper grade and slope up to required section including excavation of side slopes and bed of the channel in marshy/muddy soil, removal of all derbies like decomposed organic matters, plastic garbage,aquatic plants, water hyacinth etc., dewatering by manual means if necessary etc. and removing of the excavated soil and garbage/spoils up to a distance of 100 m etc. including all lead and lift complete as directed.

Hire charge of country boat up to 20 quintal capacity (Without boatman)

Ordinary labour

Earth work in embankment by manual means by truck carriage in ordinary/normal soil excluding sandy and rocky soil free from roots & vegetation and filling in uniform layers not exceeding 25 cm thick including ploughing or roughening or benching the seats, removing all debris, breaking clods up to 4cm cube, dressing as per design section, 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 up to 1 Km and for all lifts.(Distance=1.00km)

Earth work in excavation of drainage channel by mechanical means to the proper grade and slopes as required including disposing the excavated debris/soil to a safe distance of minimum 50 m distance, etc. complete as directed.For lead up to 50 m and all lifts. (For wet and sticky soil)

Providing and laying reinforced cement concrete pipe NP3 for culverts on first class bedding of granular material in single row including fixing collar with cement mortar 1:2 but excluding excavation, protection works, backfilling, concrete and masonry works in head walls and parapets Clause 1106, PWD RR SOR 2020-21(2.5 m length per hume pipe) (For 1000 mm dia)

Loading of RCC Hume pipe by mechanical means including a lead upto 30 m, 1200 mm dia Hume pipe.

Unloading of RCC Hume pipe by manual means including a lead upto 30 m, 1200 mm dia Hume pipe.

Earthwork in excavation for foundation of structures upto 3m depth as per drawing and technical specification Clause 1104 including setting out,construction of shoringandbracing, removal of stumpsandother deleterious matter, dressing of sides and bottom and backfilling with approved material.

Bedding of pipe Type B (First Class) Bedding Laying (First Class) bedding on well compacted approved granular materials per Clause 1105.

Providing concrete for plain/reinforced concrete in open foundations complete as per drawing sand technical specifications Clause802, 803,1202 & 1203. A) With crushed Stone I) P.C.C grade M 10 Nominal mix 1:3:6

Plain/reinforced cement concrete in substructure complete as per drawings and technical specification Clauses 802, 804, 805, 806, 807, 1202 ans 1204 . A. With crushed stone P.C.C. grade M 20 Nominal mix (1:2:4)

Centering and shuttering including strutting, propping etc. and removal of form for ( Foundations, footings, bases of columns, etc.)

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).

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 Guwahati) (Distance=28km)

Filling and laying of Geo bags of size 1.03m X 0.70m including excavation of specified 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. Without boat

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

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 least 0.75 m below ground and height above plinth of 2.5 m.Split Jatti bamboo/tarza wall 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,roofing with TATA Shaktee roofing sheets 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)

Supply, carriage and fitting of CI flap gate having spigot back and brass seats. 1200mm dia. Gate Frame & Shutter plate: (CI IS:210 FG 200), Seat: Brass, Fasteners: (MS IS:2062 Gr. B), Hinge: MS (IS:2062 Gr. B.). Completed at site as directed. (Rate as per lowest quotated rate) (1 flap gate use in one culvert in both banks)

Dewatering by 5 H.P. water pump including supply of necessary fuel, engine oil and pump operator etc. complete as directed.

Construction of whole bamboo single palisading with matured Jati bamboo stacks 7.5 cm to 10 0mm dia., 15 cm clear apart 1.20 m to 1.80 m above ground and 1.00 m to 1.20 m below ground with Jati bamboo inclined struts fixed at 1.5 m a part tied with three rows of horizontal half Jati bamboo kamies with cane /wire of 16G to e18 G tc. complete as directed. (Using Bhaluka Bamboo at the rate of8.76nos./Rm & Jati Bamboo at the rate of 2.40 nos./Rm)

Serviceable Empty Cement Bags

Labour charge for filling of empty cement bags to attain minimum filled up volume of 0.028 Cum with filled up size of 0.7 m × 0.40 m × 0.10 m, laying and pitching of the 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.For borrowing earth from a distance beyond 30 m. & up to 60 m.