Construction of 30000 L capacity OHT at Natarajapuram village vasaputhur Panchayat Parangipettai Block cuddalore district

Amount

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

Sand filling for foundation with clear river sand including cost of sand watering, ramming and consolidation etc complete as directed by TWAD Board officers.

Cement concrete 1:4:8 (one cement four sand and eight aggregates) using 40mm HBGS for levelling course for foundation including the cost of mixing concrete, ramming, curing etc., complete as directed by TWAD Board officers.

RCC in M30 GRADE using graded aggregtes of HBGs excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing, curing etc., complete as directed by TWAD Board officers. Below G.L. 1.50 to 4.50 m

For items 0 to 1.50m below GL

For items 0m to 4.5m above GL

For items 4.51m to 7.32m above GL

For items 7.32m to 10.98m above GL

For items 10.98m to 14.64m above GL

14.64m & up to 18.30m from GL

Supplying and erecting steel centering for sides and soffits I including necessary supports' and shuttering to the required height for RCC items using MS sheets of suitable size of BG.10 stiffeneq with welded MS angles of size 25mm x 25mm x3mm of boarding, laid over silver oak joints of size 10cm x 6.5cm spaceqat 90cm centre to centre and supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre to centre complying with standard specifications etc., complete and as directed by TWAD Board officers. Below G.L.

ABOVE G.L. to 3.30m

curved surfaces

14.31 M TO 15.30 M HEIGHT

Supplying, fabricating and placing in position of HSD steel rods for Reinforcement including the cost of steel and binding wire etc., complete and as directed by TWAD Board officers.

Painting two coats with approved cement paint over one coat of priming coat over Exterior Emulsion exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete and as directed by TWAD Board officers

Fabrication, supply, delivery and fixing of outside MS ladder of 45cm wide made out Fabrication, supply, delivery and fixing of outside MS ladder of 45cm wide made out of 50x50x6mm MS angle for sides and steps in 16mm MS plain rods fixed at 30cm centre to centre welded, jointed etc., providing with suitable side supports, clamps, and locking arrangements provided with one coat of red oxide paint for providing access to roof top of 30,000 lit. capacity OHT of suitable inclined length, including bottom anchorage and transportation and as directed by TWAD Board officers.

Providing manhole cover of size 1x1 0.60 X 0.60 M in RCC 1: 1.5:3 with suitable reinforcement and 5O x 5O x 6mm MS angle fixed along edges and as directed by TWAD Board officers.

Providing GI ventilating arrangements mosquito proof nylon net with 50 mm GI pipes and cowl and as directed by TWAD Board officers

Providing and fixing of RCC inner access ladder in RCC 1:11/2 :3 (one cement,one and half sand and three aggregate) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centring,shuttering charges, mixing concrete,curing etc. to required height and clear width of 45 cm consisting of 2 nos. of vertical post of 10 cm x 15 cm and step slab of 25mm x 25mm etc.complete and as directed by TWAD Board Officers.

Supply & Delivery of following Pipes and specials for OHT connection 65mm Ø GI pipes for over flow & 1xl

65mm Ø GI pipes for over flow & 1xl

50mm Ø GI pipes for scour pipe 1xl

65mm Ø GI pipe for delivery 1x1 pipe

90mm Ø PVC Threaded coupler

65 mm Ø PVC threaded coupler

65mm Ø GI Tee

65mm Ø GI coupler

65mm Ø GI union

65mm Ø GI Elbow

65mm Ø GM Gate valve

Labour charges for fixing of G.I. Pipes & Specials for OHT pipe connections as directed by the TWAD Officers,

PlatFormEarthwork excavation and depositing on bank with an intial lesd & lift in hard stiff clay, gravelly soil, shales, murrams earth mixed soil as per SS 20 B for foundation

Sand filling with good river sand including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Cement concrete in 1:4:8 mix using 40 mm metal used for foundation including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Supplying and erecting steel centering for sides and soffits

Cement concrete in 1:2:4 mix using 20 mm metal used for Wearing Coat including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Rcc Precast rings

Ring and RCC Cover Slab

PIPE LINE Earth Excavation and depositing on bank for with an initial lead and lift in all type soil for pipe line for 63mm dia pipe

Supply of unlasticised 63mm OD PVC/4ksc rigid Pipes as per BIS 4985/2000 with ISI Marking to site of works 63mm PVC /4ksc Pipe

a) 63mm End cup 1 x 9

c) 63mm elbow

Lowering and Laying of the 63mm dia PVC pipes and secials to trench ,laying to proper grade and alignment,jointing with PVC coupler and specials fixing with solvent cement paste etc., complete

Re-filling with excavated soil complying with standard specification in layers of 15cm thick well rammed and consolidated after ipes and specials are laid and tested

PVC Adhesive for pipe fixing Work

Provisions for Name board

GST Amount for providing Service to Government Contract Works for the above Construction Works. { GST Amount is the Total GST Amount for total overall quoted amount above this row in column "BB" for all works in this package}

U.Narmatha (BID ID -1249969)