Sewage And Infrastructure Development Corporation Of Goa Limited Tender

Desilting the gritty and silt deposits from manholes including necessary arrangements for lifting the deposits taking out and disposal within 5 K.m.s. as directed by the Engineer-in-charge

Manhole upto 2.00m depth

Manhole upto 3.00m depth

Manhole of above 3.00m depth upto 6m depth.

Pumping of sewage from upstream sewers to down stream to prevent overflows when sewer fails to function or when incase of major faults and when the line has to be rectified as directed by Engineer-in-charge, until rectification work is started.

Flushing and rodding the sewerlines to clear the chokes and removal of grit and silt so accumulated in manholes due to flushing and rodding outside and disposal to a distance of 5 km. including, providing necessary tool, rods flushing water tanker ladders safety equipment etc. complete.

Construction of manhole rectangular in shape including cement concrete 1:3:6 (1 cement:3 coarse sand:6 graded stone aggregate 20mm nominal size) foundation thickness of concrete 20cms and offset 10cms on both sides and first class brick work with bricks class designation 100kg/cm2 in cement mortar 1:3 (1 cement : 3 coarse sand) 23cms thick including providing & fixing CI footrests confirming to IS 5445/69 or revised and whose weight shall not be less than 5.30kgs including fixing in man-hole at 30cm c / c in 20x 20x10cm cement concrete block 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size) and 12mm thick plaster inside and outside with cement mortar 1:3 (1 cement : 3 coarse sand) including adding waterproofing compound of approved brand in cement mortar with a floating coat of neat cement and making channel in cement concrete 1:2:4 (1 cement :2 coarse sand : 4 graded stone aggregate 20m nominal size) neatly finished complete as per standard design including Earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km. and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5km and all lifts and disposal of surplus earth as directed by the Engineer in charge. Inside size 0.90 x 0.60m and 1.00m deep ( medium duty DI manhole cover & frame of size 0.90x 0.60m weighing 105 kgs) including fixing with cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size and applying the frame & cover with coal tar.) including Supplying & fixing of S.W. intercepting trap of 6" dia inside the inspection chamber with Making connection of drain or sewer line with existing manhole including breaking and making good the walls, floors with cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 20mm nominal size) 12mm thick cement plaster on both sides with cement mortar 1:3 (1 cement:3 coarse sand) finished with a floating coat of neat cement and making necessary channels for drains etc. for connecting to HSC manhole including rubble packing etc. complete.

Extra / Additional depth of above square/ rectangular manholes at above item no in fractions with bricks class designation 100kg/cm2 in cement mortar 1:3 (1 cement : 3 coarse sand) 23cms thick including providing & fixing CI footrests confirming to IS 5445/69 or revised and whose weight shall not be less than 5.30kgs including 12mm thick plaster inside and outside with cement mortar 1:3 (1 cement : 3 coarse sand) including adding waterproofing compound of approved brand in cement mortar with a floating coat of neat cement neatly finished complete as per standard design.Inside size 0.90x0.60m including Earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km. and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5km and all lifts and disposal of surplus earth as directed by the Engineer in charge

Construction of manhole rectangular in shape including cement concrete 1:3:6 (1 cement:3 coarse sand:6 graded stone aggregate 20mm nominal size) foundation thickness of concrete 20cms and offset 10cms on both sides and first class brick work with bricks class designation 100kg/cm2 in cement mortar 1:3 (1 cement : 3 coarse sand) 23cms thick including providing & fixing CI footrests confirming to IS 5445/69 or revised and whose weight shall not be less than 5.30kgs including fixing in man-hole at 30cm c / c in 20x 20x10cm cement concrete block 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size) and 12mm thick plaster inside and outside with cement mortar 1:3 (1 cement : 3 coarse sand) including adding waterproofing compound of approved brand in cement mortar with a floating coat of neat cement and making channel in cement concrete 1:2:4 (1 cement :2 coarse sand : 4 graded stone aggregate 20m nominal size) neatly finished complete as per standard design. Inside size 0.60x0.60m and 0.60m deep ((with medium duty DI manhole cover & frame of size 0.60x 0.60m weighing 90kgs) including fixing with cement concrete 1:2:4 ( 1 cement :2 coarse sand : 4 graded stone aggregate 20mm nominal size and applying the frame & cover with coal tar.including Earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km. and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5km and all lifts and disposal of surplus earth as directed by the Engineer in charge including rubble packing etc complete.

Extra/Additional depth of above square/ rectangular manholes at above item no in fractions with 100kg/cm2 brickwork in cement morter 1:3 (1cement:3coarse sand) 23cm thick including providing and fixing CI footrests not weighing less than 5.30kgs incl. fixing in manholes @ 30cmc/c staggered in 20x20x10cm cement concrete blocks 1:3:6(1cement:3coarse sand :6graded stone aggregate 20mm nominal size) 12mm thick plaster inside and outside with cement morter 1:3 (1cement :3coarse sand)including adding water proofing compound of approved brand with a floating coat of neat cement for 0.60 x 0.60m Manholes. including Earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km.and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5kM and all lifts and disposal of surplus earth as directed by the Engineer in charge. .

Providing and laying in position cement concrete below foundation M15(1:2:4) (1 cement : 2 coarse sand: 4 graded granitic or basaltic stone aggregate 40 m nominal size) excluding cost of centering, shuttering and finishing :

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete.

Demolishing cement concrete 1:3:6 or richer mix including disposal of material within 50m lead.

Hiring of grabber including Driver, Diesel, oil labour etc.

Filling potholes and patch repairs with open graded premix material and removal of all failed material, trimming of completed excavation to provide firm vertical faces, cleaning of surface, painting of tack coat with bitumen emulsion @ 0.24 kg/sq.m on the sides and base of excavation as per Clause 503, back filling the pot-holes with hot bituminious content @ 1.46 kg/m2 as per clause 511, compacting trimming and finishing the surface average thickness of 50mm to form a smooth continous surface all as per MORTH Specification 3004.2

As per Circular No.3-3-05/SSW-PWD/Vol-I/2022-23/391 Dt.13/03/2023 for Adoption of percentage increase in rates for working of sewerage works under unhygenic conditions - 10% of item no. 1-15 above