construction of machine hole UGD pipeline arrangement at Indiranagar North and Raising the existing damaged manhole at various places in ward 46.

Construction of MHs 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, MH cover and frame etc. complete for the following sizes for each MH (As per the type design drawing for MHs).

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 except in hardrock requiring blasting inclusive of shoring shuttering and baling out water and cleaning and levelling the site etc.,complete

Supply ,Laying and joining of ci pipe with socket and spigot ends for A class pipe per is 1536/20201 etc complete 200mm

Lowering CI Pipes and specials to trench and laying to proper grade and alignment, etc complete

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)

Refilling with excavated earth in layers of 30 cm watered well rammed and consolidatred conforming to standard specification including labour charges as directed by Engineer in Charge

Cement Concrete 1:4:8 (One Cement, two Sand and four Aggregates) using 20mm hard broken gauge granite jelly for foundation including consolidation and dewatering for foundation wherever necessary etc., Complete.

Plain Cement Concrete 1:1.5:3 (One part of Cement, one and half part of Crushed Sand (M- Sand), three coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

Supply of FRC Manhole 600mm size dia cover with frame including cost of conveyance loading fixing the same etc complete

Raising the existing circular manhole in heavy type inclusding the removing the exisiting the manhole cover with frame and dismantling the existing the cement concrete wall and tar road surface around the manholes using 1:2:4 20 mm jally for raising the exisisting the manhole wall and using 1:2:4 with 20mm chips for finishing the top surface of manhole etc complete .