Construction of 30,000lit OHT at Notchiyodaipatty H/O Koovanuthu

Part 1 :Construction of 30,000 litres Capacity RCC OHT (12m Staging) @ Notchiodaipatty,. H/O Koovanuthu Estimate Amount : 16,63,000/-lakhs

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 eart

First Depth of 2.00 M

Second Depth of 1.00 m

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 mix using 40mm ISS HBG metal ( Using M-Sand) for foundation including cost and conveyance of all materials to site and watering whenever necessary and laid in layers not more than 15cm thick compacting etc., complete complying with std. Specifications and as directed.

RCC in M20GRADE 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 Boa

Below Ground level -1.50m to 4.50m

Below Ground level - 0m to 1.50m

Above Ground level -0m to 4.50m

Above Ground level - 4.51 m to 7.32m

Above Ground level -7.33 m to 10.98m

Above Ground level - 10.99m up to 14.64 m

Above Ground level - 14.65m up to 18.30 m

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

PLAIN SURFACE

Below ground level

Above ground level & Upto 3.30 m Height

Above ground level -5.30 m to 6.30m

Above ground level -8.30 m to 9.30m

Above ground level -11.31 m to 12.30m

CURVED SURFACE

Above ground level - 0 m to 3.30m

SQUARE COLUMN

Below Ground level

Above ground level - 0 m to 3.30 m

Above ground level - 3.31 m to 4.30 m

Above ground level - 4.31 m to 5.30 m

Above ground level - 5.31 m to 6.30 m

Above ground level - 6.31 m to 7.30 m

Above GL -7.31m to 8.30m

Above GL -8.31m to 9.30m

Above GL -9.31m to 10.30m

Above GL -10.31m to 11.30m

Above GL -11.31m to 12.30m

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

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.

FabricatFabrication, 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 c

Providing and fixing of RCC inner access ladder in RCC 1:1.5:3 (one cement, one and half sane! and three aggregates) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete.

Providing PVC ventilating arragements mosquito proof nylon net with 110mm PVC cowl and as directed by the departmental officers etc.,

Providing cut stone slab in CM 1:3 and as directed by TWAD Board officers

Providing manhole cover of size 1x1 0.60 X 0.60M 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.

Pipe connection to SR

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

63 mm Ø PVC threaded coupler

65mm Ø GI Tee

65mm Ø GI 900 Bend

65mm Ø GI coupler

65mm Ø GI union

65mm Ø GI Elbow

65x50mm Ø GI Reducer

75mmx 63mm PVC Reducer

75mm PVC Threaded coupler

75x90 PVC Reducer

75x63 PVC Reducer

65mm Ø GM Gate valve

50mm Ø GM gate valve

50mm GI Pipe

50mm GI Coupling

50mm GI Elbow

Labour charges for Laying of PVC Pipe and specials fixing charges etc., complete.

Refilling the foundation with excavated earth including consolidation as directed by the TWAD Board officers. As per item l(a) + l(b) Less item 2,3 & 4A & 4B Total

Provision for Name Board Paniting and Lettering the Scheme details

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}