Construction of River Training wall and Stability of Barmouth in Vellaiyar River at Seruthur in Nagapattinam District

Formation of Filter Layer for rubble mound groyne with quarry run hard blue granite stone of weight 1kg to 10kg having a specific gravity of not less than 2.65 as per approved design and drawing including quarrying, loading transporting by tippers/lorries weighing in the electronic weigh bridge for measurement, dumping, placing in position to required level, profile and finishing the side slopes 1:1.5 on both sides wherever required as per drawing with necessary equipment and devices as per the drawings and specification etc complete as directed by the Departmental Officers. The rate is also inclusive of placing, sectioning and finishing with necessary equipment and devices and hire and operational charges of tools and plants etc. (The payment shall be made on weight basis (ie) laden weight minus unladden weight). The contractor has to make his own arrangements for weigh bridge.

Formation of core layer for rubble mound groynes with quarry run hard blue granite stone of weight 10Kg- 500Kg having a specific gravity of not less than 2.65 as per approved design and drawing including quarrying, loading, transporting by tippers/lorries weighing in the electronic weigh bridge for measurement, dumping, placing in position to required level, profile and finishing the side slopes 1 : 1.5 on both sides with necessary equipment and devices as per the drawing and specification etc., complete as directed by the Departmental Officers. The rate is also inclusive of placing, sectioning and finishing with necessary equipment and devices and hire and operational changes of tools and plants etc. (The payment shall be made on weight basis (ie) laden weight minus unladden weight). The contractor has to make his own arrangements for weigh bridge.

Formation of Toe Berm Layer for rubble mound Breakwater with hard blue granite stone of weight ranging from 0.5T to 1T having a specific gravity of not less than 2.65 and as nearly cubical as possible as per approved design and drawing. The rate is inclusive of quarrying, loading at quarry using crane and other tools and plants as required, transporting by tippers/ lorries weighing on the electronic weigh bridge for measurement, Unloading/dumping placing in position to required level, profile and finishing the side slopes of 1 : 1.5 using crane and floating equipment and devices as per the drawing and specification etc., complete and as directed by the Departmental Officers. The rate is inclusive of placing sectioning and finishing with necessary equipments and devices and hire and operational charges of tools and plants etc. (The payment shall be made on weight basis (ie) ladden weight minus unladden weight). The contractor has to make his own arrangements for weigh bridge.

Providing Armour layer of rubble mounded break water with Hard blue Granite Stones weighing from 2T to 3T on sea and Lee side including Quarrying, loading at quarry, conveying in contractors transport by tippers including pre-weighing and post weighing for the purpose of measurement and dumping into the sea with required width and side slopes with necessary equipment and devices as per the drawings and specification etc., complete as directed by the departmental officers.

Removal of sludge, slush, silt, debris, plastic waste,water weeds, using appropriate special machineries like dredger along the cutter section having maximum capacity of300cum solids per hour which can dredge to a maximum of 8.00m depth and dispose the dredged material to a maximum of 4Km on either one of the outer slope of river banks whichever is convenient as per the prevailing site conditions for easy conveyance and jungle clearance by pumping operation along with suitable pipeline and other required accessories with other mechanical devices for the entire stretch to reach the bank. the rates including cost of transportation, Mobilization and demobilization of machinery, hire charges, cost of fuel, labour charges for surveying and operation of dredger, crew and other related works etc.

Supplying and filling in foundation, basement, etc with Sand Gravel mix in ratio of 1:3 in layers of not more than 15cm thick thoroughly mixed, well watered, rammed with surface vibrator and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Earth work excavation for foundation by Mechanical means for Isolated & Combined Footing etc in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 100 mts and clearing and levelling including dressing of sides and raming of bottoms etc., complete complying with standard specification and as directed by the departmental officers.- Upto 2.40m Footing Depth. Data worked out for 64 m3 per day/8 hrs.

Construction of granular sub-base by providing close graded Material, mixing in a mechanical mix plantat OMC, carriage of mixed Material towork site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per clause 401. GSB Grade - III Plant Mix

Supplying and filling in foundation, basement, etc with Stone Dust in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Supplying and filling in foundation and basement with Gravel in layers of not more than 15cm thick well rammed watered and consolidated etc.,