Construction of Manhole and Laying 300mm RCC Pipe line arrangements at Palam Station Road in Ward No.29

Construction of manhole at various depth to invert including earth work excavation as per SS 20B laying cement concrete 1:3:6 , using 40mm jelly for foundation , sinking well kerp below GL for 4.50m depth and above pumping ,timbering charges for 2.50m depth and stock brick work in CM 1:3 , for 23cm wall and plastering interior with CM 1:3 , 12mm tk laying plain cement concrete 1:3:6, using 12 to 20mm jelly fixing to frame , providing CI steps , manhole refilling the trenches with quarry dust etc, complete for the follow size for earth manhole ( as per the type design drawing for manholes). BUILDING DATA 25/26 P.N 232.5m to 3.0m depth

3.0m to 3.5m depth

Supply of RCC non pressure spun pipe with socket and spigot ends as per IS 458/2003 manufactured withsulphate resistant cement with 12 mm HI -alumina lining with rubber ring joints NP4 Pipe TWARD - 25/26 300mm dia

RUBBER GASKETS AS PER IS 5382/1985 (Reaffirmed 1998) TWARD - 25/26 300mm dia

Earthwork excavating and depositing on bank with an initial lead of 10metres and initial lift of 2 metres 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 soil etc., complete.

Shoring and shuttering the sides of trenches when depth of excavation 2m in loose soil including cost of labour charges for instalation and removal of planks & sectioning etc, TWAD Pg:210 25/26 0 to 3m depth

0 to 4m depth

Lowering R.C.C pipes and specials into the trenches and laying to proper grade and alingnment by the TWAD P.N 25/26 DEPTH 0 TO 3M,4M 300mm dia (91.73+10%)

Jointing R.C.C pipes and specials with molten lead and yarn including caulking the jionts. ( Including cost of jointing materials) TWAD Board 25/26 DEPTH 0 TO 3M,4M 300mm dia (590.82+10%)

Refilling the trenches with suitable excavated earth available along the allignment after the pipes &specials are laid joimted &tested in layers &watering ramming &consolidation directed by the engineer in charge (madurai corpration) 2026

Testing of pipes for water supply with hydraulic testing equipment by filling with water (including cost of water) and testing to recommended pressure in convenient stretches and attending the bursts if any occured during the test, excluding the cost of pipes but including other incidential and operational charges etc., complete for the following diametres of pipes.TWAD Board 25/26 300mm dia

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 the Departmental Engineer.TWAD Board P.N209 25/26

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. TWAD Board P.N206 25/26

Supplying laying jointing and testing 200mm dia SW pipe SW Pipe including earthwork excavation for trenchers in hard stiff black cotton,hard red earth, shales,murams,gravel,stoney earth and mixed with small size boulders and hard gravelly soil, deposting the earth on banks with initial lead of 10m lowering the pipes into the trenches,aligning,refillinf the trenches with exvated eart in layers of not more than 23cm thick watering,ramming to consolidation and trenches with exvated eart in layersof not more than 23cm thick watering, ramming toconsolidation and disposal of surplus earth etc. complete at an average

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