Realignment of 450mm CI pipeline from Medavakkam mainroad to Keelkattalai UGSS pumping main Zone III

Supply and Delivery of a C.I.SPUN PIPES AS PER IS 1536/2001 etc, complete as per standard specification (TWAD 2024-25, A Class pipe 450mm dia CI Pipe

Earthwork excavation and depositing on bank with initial lead of 10 metres and initial lift 2.00m in hard stiff clay stiff black cotton, hard red earth, shales, Muram, gravel, stoney earth and earth mixed with small size boulders S.S. 20-B.(excluding timbering and bailing out sub-soil water) as per P.W.D. standard schedule of rates for Chennai City. TWAD 2024-25, WD -0654

Upto 0m to 2m Depth

Upto 2m to 3m Depth

Upto 3m to 4m Depth

Upto 4m to 5m Depth

Earth work excavation in all classes of soils except sand and rock such as hard stiff clay black cotton shales murrums hard red earth etc with all lead and lift and depositing on banks as per ss 20 B etc complete

Inspection chambers 2.0 M x2.0 M size up to 2.0 M depth

Inspection chambers 2.0 M x2.0 M size 2.0 M to 3.0 M depth

Inspection chambers 2.0 M x2.0 M size 3.0 M to 4.0 M depth

Inspection chambers 2.0 M x2.0 M size 4.0 M to 5.0 M depth

Lowering of C.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. As Per TWAD SOR 2024-25 WD - W 0237 Depth 0.00 m to 5.00 m Depth - 450mm Dia

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) As Per TWAD specification 450 mm dia C.I/ D.I - S/S pipes and specials

Construction of aThrust Block - With M20 Grade Concrete Mix 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.,completePlain Cement Concrete 1:2:4 (one cement, two Crushed Stone Sand (M- Sand) and four 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 Providing and laying in position Standardised Concrete Mix M-20 Grade including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary without claiming extra cost etc., complete complying with standard specification and as directed by the departmental officers Refilling with excavated earth other than sand with an initial head load of 100 mts. and depositing the earth as shown by the departmental officers in layers of not more than 15 cm thick well rammed, watered and consolidated etc. complete complying with standard specification -

Supply,delivery of CI Specials AS PER IS 1528 As Per TWAD specification

CI 450mm Non return valve including cost and conveyance charges etc complete

Shoring, and strutting with sheet piles of size width 400 mm x height of 3m x thickness of 9mm as per IS 2314-1986 by driving on both sides of the trench from Ground Level up to the required depth and connecting the above sheet piles by horizontal strutting with sheet piles at an interval of 1.0m, fixing the sheet piles by connecting the horizontal strutting with casurina poles of 8cm to 10cm dia. at 1.50m interval and including removing the sheet piles after the pipelines are laid, jointed, tested, and stacking it safely for other uses. It includes the cost of sheet piles and casurina poles including labour charges for erecting the sheet piles, driving the sheet piles, removing the sheet piles, fixing Casurina poles, etc., complete and all other incidental charges for the depths (iv) 0-5mts. As Per Specification

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways 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 two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles 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 TCMC Board officers. as Per Specification

Dewatering using 50HP 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. As Per TWAD specification

Plain cement concrete 1:4:8 mix using 40mm HBG ISS metal including cost and conveyance of all materials and including all labour charges etc complete

Providing and laying in position Standardised Concrete Mix M-25 Grade in accordance with IS 456 - 2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement contenet of 350Kg/ cum and maximum water cement ratio of 0.55 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone sand (M- Sand) but excluding cost of reinforcement grill and fabricating charges centering and shuttering but including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary without claiming extra cost etc., complete complying with standard specification and as directed by the departmental officers - The Coarse and Fine aggregates to be used should comply with the requiremnents of IS standards.

Suppling and fabricating and placing in position MS (or) R.T.S. bar for reinforcement to all RCC works as per the design given including cost of steel and binding wire also in all floors.

Centering for soffits of RCC slabs of plane surface like lintels, beams ,etc.,including strutting 3m high using mild steel sheets of size 90cm X 60cm X and B.G 10 stiffened with M.S angles of size 25mm X 25mm X 3mm laid over silver Oak (C.W) joists of size 10cm X 6.5cm (spaced at about 90cm c/c )and supported dy casurina props of 10cm to 13cm dia (spaced of 75cm C/C) complying with standard specification and directed

Labour charges for fixing CI specials and jinting materials and all labour cahrges etc complete

Cutting BT road including all labour charges and machnary charges and all other incidental charges etc complete