Construction of Manhole and Pipe Line arrangements at Various Street in Ward No.24.

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel, stoney earth and earth mixed with small size boulders SS.20B and Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed wherever necessary refilling the sides of foundation with excavated soil other than sand in layers of 15cm thick well rammed and cleaning and levelling the site etc.,complete - Open Earth work Excavation (Building data Pg.No: 25)

Supply of RCC non pressure spun pipe with socket and spigot ends as per IS 458/2003 manufactured with sulphate resistant cement with 12 mm HI -alumina lining with rubber ring joints etc., complete.

Supply of RUBBER GASKETS AS PER IS 5382/1985 (Reaffirmed 1998) etc., complete.

Lowering RCC pipes and specials into the trenches and laying to proper grade and alignment etc., complete.

Jointing RCC pipes with lead and hemp yarn using steel collars including the cost of jointing materials and caulking the joints etc., complete.

Refilling the trenches with excavated earth in layer of 15cm thick well rammed consolidated including watering complying with standed etc., complete

Construction of manholes using sulphate resistant cement at various depths to invert including earth work excavation asperSS20B, laying cement concrete in C.M.1:3:6 using 40mm B.G. jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above, pumping, timbering charges for 2.5m depth and above, stock brick work in C.M.1:3, for 23cm thick wall and over 23cm thick wall, plastering interior with C.M.1:3, 20mm thick and exterior with C.M.1:3, 12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G. jelly fixing the frame, providing C.I. steps, manhole cover and frame etc. complete for the following sizes for each manhole (As per the type design drawing for manholes).Size 900 x 1200 mm(Building data Pg.No: 93) 1m depth

1.5m depth

Raising the existing circular manholes in heavy type including removing the existing manhoke cover with frame by dismantlimg the existing cement concrete and tar road surface alround the manhole raising the manhole with cement concrete 1:2:4 (one cement two and four aggregate ) 25cm height including centering insid the manhole raising, laying 15cm tick cement 1:2:4 with 20mm granite chips including finishing the top surface of manhole Alround etc., complete

Supply of Manhole Cover SFRC 90x90 cm (Frame with Cover)

Dewatering using 3HP to 70HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete. Hire charges for Diesel Pump set for 3 HP

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm dia reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by TWAD Board officers.

Replacement of underground utilities (PVC Pipe) damaged during earthwork excavation for pipe laying works including cost of additional earthwork in all soil strata,including BT/CC road cutting ,removal of slushy soil and replacing the pipeline with sound pipe,including supply and delivery of PVC pipes,coupler,union,jointing materials and required specials,cutting ,threading,conveying,laying,jointing and cost of refilling for the additional earthwork etc complete and as directed by the departmental officers.

Replacement of underground utilities (GI Pipe) damaged during earthwork excavation for pipe laying works including cost of additional earthwork in all soil strata,including BT/CC road cutting ,removal of slushy soil and replacing the pipeline with sound pipe,including supply and delivery of PVC pipes,coupler,union,jointing materials and required specials,cutting ,threading,conveying,laying,jointing and cost of refilling for the additional earthwork etc complete and as directed by the departmental officers.

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