Proposed under ground drainage main line at Palanisamy nagar 6th street in ward 15

Amount

Cutting the existing BT Road surface the debris clearing away from the site etc.complete..,

Earth work excavation and depositing on bank with an initial lead of 10m and lift of 2m in Hard stiff clay, Stiff black cotton, Hard red earth, Shales, Murram gravel, Stoney earth and earth mixed with small size boulders and hard gravelly as per SS 20B etc.complete..,

Supply of SP2 Class 200mm dia SALT GLAZED STONEWARE PIPE AS PER IS 651/2007 of required length with Rubber Gasket etc., complete

Laying stoneware pipes and open joint with fillet in the infliltration gallery excluding cost of pipes but including charges of special tools and plant etc., such as air compressor and helmet. TWAD 22-23 P-255 A

Refilling the trench with excavated earth in layer 25cm thick well rammed including watering consolidation etc., complete

Construction of manholes depths invert including earthwork excavation as per SS 20B laying cement concrete in CM 1:3:6 using 40mm B.G. jeely for foundation sinking well kerb below G.L. for 4.5m depth and above, pumbing timbering charges for 2.5m depth and above stock brick work in CM 1:3 for 23cm wall and plastering interior with cm 1:3 20mm thick and exterior with CM 1:3 using 12mm thick, laying plain cement concrete 1:3:6 using 12mm thick, jelly fixing the frame providing CI steps, manhole cover and frame benching and channelling including refilling the trenches with quarry dust etc., complete for the follow size for earth manhole (as per the type design drawing for manholes)upto 1.50 m depth

Interconnection works for existing UGD main including cutting existing pipe fixing branches coupler jointing and boiling out water etc., complete excluding the earthwork excavation etc., complete.

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 including the removing the existing the manhole cover with frame and dismantling the existing the cement concrete wall and tar road surface around the manholes using 1:2:4 20mm jelly for raising the existing the manhole wall and using CC1:2:4 with 20mm chips for finishing the top surface of manhole etc., complete

Add GST 18%

A N KANNAN (BID ID -1114033)