Flood Mitigation Work to the Eroded portion by using Construction of Gabion wall and groynes in Left Bank of Cauvery River in Melur Village and Right Bank of Coleroon River in Vellithirumutham Village of Srirangam Taluk in Trichy District.

Amount

Dismantling Plain Cement Concrete Clearing away and carefully stacking materials useful for reuse for any thickness etc., complete complying with standard specifications and as directed by the departmental Engoneers - Open excavation for foundation.

Earth work excavating and depositing on bank with initial lead of 10 m& Initial lift of 2m and for required additional lift and bailing out of water in sand,silt,other loose soil,wet sand or silt not under water light black cotton soil,sandy loam and ordinary soil including excavated earth (SS20B) etc., complete complying with standard specifications and as directed by the departmental Engoneers - Open excavation for foundation.

Providing and making Gabion structure with Mechanically Woven Double Twisted Hexagonal shaped wire Mesh Gabion Boxes as per IS 16014:2012, Morth Clause 2500, of required size, Mesh Type 10x12 (D=100mm with tolerance of ± 2%) Zinc + PVC Coated, Mesh Wire diameter 2.7 / 3.7mm, mechanically edged / selvedged with partitions at every 1m interval and shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2 / 3.2mm (ID/OD), supplied @ 3% by weight of Gabion boxes, filled with boulders with least dimension of 200mm, as per drawing, all complete as per directions of Engineer-in-Charge.

Providing and laying needle punched and mechanically bonded Non-woven Geotextiles of Type-I indigenously manufactured from high quality fibres on the prepared subgrade for separation as per MORTH Specification 702

Refilling with excavated earth (other than sand) complying with the standard specification for filling in foundation and basement etc., complete complying with standard specification and as directed by the departmental Engineers.

Dewatering using 20HP diesal Engine pumped inlcuding hire charges cost of diesal Engine oil, pump operator, labour charges conveyance of pumpset and fuel to site and back loading and unloading any other inciditial charges etc.., complete complying with standard specification and as directed by the departmental officers.

Supplying hard granite stones of weight 0.50MT to 2.00MT for Armour layer upto 8.00m water depth including Quarrying, loading at quarry, conveying in contractors transport by tipper including pre weighing and post weighing for the purpose of measurement and dumping in to the River bank slope with required Width and side slope with necessary equipment and device asper Drawing and specification etc., complete and as directed by the departmental Officers.

Earth work excavation deploying earth moving machineries for desilting channel having a width of more than 10m and forming bund on either side and depositing the earth on banks including jungle clearance etc.., complete complying with standard specification and as directed by the departmental officers.

Supplying and laying sand gravel mix (1:1) at the rate of 0.62 cu.m of filling sand and 0.66 cu .m of gravel to consolidated 1hide of 150mm designed to attain a CBR value of not less than 20 including cost and conveyance of sand gravel from approved sources to work site and stacking them to the departmental gauge for premeasurement including labour charges labour charges for hand roller watering and all other tools and plants employed including all other incidental charges etc., complete (For road works)

Supplying and placing in position of sand bags at the work site including the cost of empty cement gunny bags and conveyance of sand from the local river bed with in a lead of 3KM + 300 M head load. Filling the sand empty cement gunny bags including stitching charges, stacking charges and placing them in rows at the breached portion or flood affected portion as directed by the departmental Officers.

GST at 18%

V.JANARTHANAN (BID ID -1548338)

K PADMANABHAN (BID ID -1547277)