sewerage system at sewer lines of Puducherry town and Fringes South Zone

Amount

Removal of blockage in the intercepting chamber and cleaning the sewer line connecting I.C. and main sewer line by mechanical means by engaging trunk mounted sewer jetting cum suction machine. The rate includes the cost of water requried for cleaning the blockage and disposal of debries, waste water to the nearest drainage pumphouse/STP.

Removal of blockage in the manhole upto 3 mtr depth and cleaning the sewer line by engaging trunk mounted sewer jetting cum suction machine. The rate includes the cost of water required for cleaning the blockage and disposal of debries, waste water to the nearest drainge pump house/STP.

Removal of blockage in the manhole beyond 3 mtr depth and cleaning the sewer line by engaging trunk mounted sewer jetting cum suction machine. The rate includes the cost of water required for cleaning the blockage and disposal of debries, waste water to the nearest drainge pump house/STP.

Raising of intercepting chamber by dismantling the old RCC slab, removing the I.C.cover and frame from the chamber and raising the chamber height with brick work in cement mortar 1:4 (one cemenr and four sand), refixing the frame in position by laying reinforced cement concrete 1:1.5:3) (one cement, one and half sand and three HBG metal) including curing but excluding the cost of reinfrcement, finishing the top, inside and outside plastering with 20 mm thick in cement mortar 1:3 (one cement three sand), the rate includes all materials, providng brarricading, caution board, watch and ward etc., complete till the completion of work with minimum hindrance to the traffic - 30 Cem height.

Extra/rebate for every additional/reduction in depth of 0.10 m or part thereof in 23 cm thick wall for the intercepting chamber of size 600 x 850 x 1100 mm deep.

Raising of various types of manholes and flushing tank by cutting alround the manhole cover, removing the frame and cover from the manhole by cutting the B.T., W.B.M., surface, raising the manhole to the required height with brick work in cement motar 1:4 (One cement and four sand), refixing the frame in position by laying cement concrete 1:1.5:3 (One cement one and half sand and three 20mm HBG metal) including curing, but excluding the cost of reinforcement, finishing the top, inside and outside plastering with 20mm thick in cement mortar 1:3(one cement three sand), the rate includes all materials, providing barricading,caution board, watch and ward etc.,complete till the completion of work with minimum hindrance to the traffic.- 30cm height.

Extra/rebate for every additional / reduction in depth of 0.10 m in 23 cm thick wall or part thereof for manhole of size. - 800mm x 800mm x 1000mm deep.

Sastha Enviro Tech Equipment

D Ramesh