Construction Of 60000 Liter Capacity OHT Ward No 4 Near Nalliyampalayam Pudhur in Velur Town Panchayat

Amount

Earthwork excavation and depositing on bank with an initial lead of 10 m and lift of 2m in Hard stiff clay blcak cotton, hard red earth, shales, murram, ordinary gravel, stoney earth and earth mixed with small size boulders for foundation SS 20B as directed by TWAD Board officers.

First depth of 2m

Second depth of 1m

Filling the sides of foundation with Clean River sand in layers of 15cm thick,watered well rammed and consolidated etc. complete complying with standard specification and as directed by the TWAD Board Officers.

Plain Cement Concrete 1:4:8 (one cement, four sand and eight hard granite broken stone of 40mm size ISS gauge ) for levelling course of foundation including mixing, placing, ramming,finishing curing etc. complete in accordance with specification and as directed by the TWAD Board Officers (Below GL 1.50 m to 4.50 m )

RCC M30 design mix concrete ( Approximately for one cum of concrete 400 kg of cement, 0.47 cum of sand with bulkage and wastage , 0.57 cum of HBG ston of 20 mm size ,0.28 cum of HBG stone of 10 mm size are to be used ) for the following members (excluding the cost of RTS grills for reinforcement, centering and shuttering, strutting,) but including cost of mixing, laying of concrete, vibrating with mechanical vibrators, ramming consolidating finishing, water charges curing etc., complete complying with relevent standard specification and as directed by TWAD Board Officers.

For items 1.5m to 4.5m below GL

Items 0 to 1.5m below GL

Above GL & Upto 4.5m

Above 4.50m & upto 7.32m from GL

Above 7.32m & upto 10.98m from GL

Centering for soffits of RCC members including shuttering, strutting to the centering and providing supports etc. complete for the following members using MS sheets of suitable size of BG o10 stiffened with welded MS angle of size 25x25x3mm for boarding laid over I type of M.S. Truss of size 25x25x3mm spacing at about 90 cm C/C and supported by 40mm GI Pipe ( medium) spacing at 75mm c/c etc., complete complying with standard specifications for various heights and as directed by the TWAD Board Officers. The centering should be removed after the specified striping time of the concrete as per IS-456/1978.

Plane Surface

0-3.30m Below G.L.

0 to 3.30m above G.L.

3.30 to 4.30m above G.L.

5.30 to 6.30m above G.L.

Curved surface

Square columns

0 to 3.30m above and below G.L.

Below GL

0 to 3.30m above G.L.

3.30 to 4.30m above G.L.

4.30 to 5.30m above G.L.

5.30 to 6.30m above G.L.

Painting the new plastered surfaces with two coats of approved (snowcem)cement paint for all the external surface of the structure including cleaning, preparing the surface, curing etc., complete and as directed by TWAD Board Officers using the following colour i) Ivory for all external surface except the projection of floor slab/roof slab and hand rails, II) Golden brown for the projection of the floor slab / roof slab and handrails

Supplying, cutting, bending, tying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire etc.The steel should conform to the relevant ISspecification and supplied with test certificate (Fe.415 grade as per IS specification No.1786/1985 and as amended from time to time) for delivery at site of work including loading, freight, unloading, stacking, transit insurance charges, taxes etc. complete . RTS Rods

Fabrication, supply, delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for both sides and for steps at 30cm C/C welded jointed etc ., for I staging from GL to 1st level brace (weight 4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery andfixing of 32 mm GI pipes medium for hand rails from I stageto IVth stage. RCC M30 Grade mix for Landing slab 5 nos. atGround Level- 1No. and above Ground Level - 4Nos. Supply and fixing of 32mm GI pipe medium for hand rails for the Landing slab. Supplying and fixing of MS Base plate of 100mm X 100mm X 6mm thick for fixing Anchore fastener bolt for fixing of hand rails at Landing slab and MS Ladder providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved Type Design and as directed by TWAD board officers.

Providing and fixing RCC inside access ladder of approved pattern and design in RCC 1:11/2:3 (One cement and one and half sand and three HBG stone of 20mm size ISS gauge) 0.40m width, 0.10m thickness, 0.12m breadth for side post, 0.05m thickness 0.12m breadth for steps with suitable inclination including cost of cement, reinforcement centering, finishing, curing etc., complete and as directed by TWAD Board Officers.

Providing PVC ventilating arrangements mosquito proof nylon net with 110 mm PVC cowl and as directed by TWAD Board officers

Supplying and fixing in position of cut stone of size 0.45m x 0.45m x 0.15m at site in CM 1:3(One part cement and three part sand) at bottom of inlet pipe inside the Sump the suitable size and as directed by the TWAD Board Officers.

Supply, delivery and fixing in position of 0.60x0.60 m C.I manhole frame and cover heavy duty approved patten at the roof slab and as directed . the manhole frame and cover should of light etc., complete and as directed by the TWAD Board Officers.

Labour charges for Painting TWAD Board Emblem in accordance with the size and specifications as approved by the Board on the Service Reservoirs including cost of all consumables , one coat of base paint, scaffolding charges including painting NRDWP logo on the Service Reservoir as per standard specificatons and as directed by the TWAD Board officers.

Provision for pipe connection arrangements for inlet, outlet scour and overflow etc. including cost of pipes, specials, valve, labour charge for lifting, aligning, cutting, threading, fixing and painting of GI pipes with two coats of approved quality enamel paint etc., complete and as directed by TWAD Board officers

65mm Ø GI pipes for inlet 1xl connection

65mm Ø GI pipes for over flow & Rainwater & Scour

65mm Ø GI pipe for outlet 1x1 pipe

75 mm stub end

65mm Ø GI Tee

65mm Ø GI 900 Bend

65mm Ø GI coupler

65mm Ø GI union

Refilling the sides of foundation with excavated earth (other than sand) in layers of 15cm thick,watered well rammed and consolidated etc. complete complying with standard specification removing and spreading the surplus earth at the places shown and as directed by the TWAD Board Officers.

Provision for water level Indicator

MSV Engineering Construction and Co. (BID ID -904610)