Chennai Metropolitan Water Supply And Sewerage Board Tender

at 3.50 m deep

Cement concrete 1:3:6 using 40mm gauge hard broken stone jelly for plain cement concrete works including laying in layers of not more than 15cm thick including ramming curing, etc., complete

Construction of RCC manholes using sulphate resistant cement with M30 design mix concrete using Crushed stone sand (M sand) including earthwork excavation as per SS20B , providing point edge to well kerb using ISA 150x75x10mm weighing at 16.9kg/m,sinking well kerb below 2m from G.L.or by open excavation for various depth as per site condition with M30 mix for side wall, raft and roof slab,including cost of steel reinforcement ,including bailing and pumping out water, formwork, plugging the bottom with PCC 1:3:6 using 40mm hard broken granite jelly, laying plain cement concrete 1:3:6 using 12mm to 20mm hard broken granite jelly for fixing frame, fixing FRC manhole cover and frame, providing CI steps, ,benching and channelling including refilling the trenches with excavated earth and disposal of earth etc. Including testing the manhole with water for 48hours to check water tightness and rectifying the defects if any complete for the following size of manholes.

at 3.0m deep

at 3.5m deep

Barrication work along one side of the trench for laying the pipe line with casuarina post at 1.52m centre to centre (8 to 10 cm dia. and 1.52m height) verticals, painting the vertical posts in different colours, tieing with coir rope, fixing danger flags, danger lights, reflectors including watching during night for 1 metre

Road Cutting : Cutting Asphaltic Road

Non bus route

Cutting CI Pipes

200mm dia

Supplying and filling with stone dust for a depth of 10cm for bedding of CI Pipes and back fill envelope for a height of 15cm above the crown of CI Pipes including ramming consolidating etc., complete

Disposal of surplus earth (for CI pipe length)

Hire charges for diesel pumpset for 7.5 HP