Construction of 60000lits OHT at Nanjamuhathuvahkkai

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.

Second depth of 1m

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.

Reinforced cement concrete 1:1.5:3 mix using 20mm ISS metal including cost and conveyance of all materials to site and all charges etc complete

Beyond 1.50m depth below GL

Up to 1.50m Depth Below Gl

Up to 4.50m ht above GL

For items 4.50m to 7.32 m above G.L

From 7.32m to 10.98m above 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 Up to 3.30m below & 3.30m above GL/Floor Slab

5.30m to 6.30m above GL

Curved Surface Up to 3.30m below & 3.30m Above GL/Plat form

Square Coloumns Up to 3.30m below & 3.30m above GL

3.30m to 4.30m above GL

4.30 m to 5.30m Above GL

5.30m to 6.30m Above GL

6.3m to 7.30m Above GL

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 curing.

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

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 6O x 6O x 6mm MS angle fixed along edges and as directed by TWAD Board officers.

Painting TWAD Board emblem 1 x 1 on the SR with enamel paint as per Board's specification and as directed by 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. 65mm Ø GI pipes for inlet 1xl connection

65mm dia GI pipes for Over flow & Rain Water Harvesting Pipes

65mm dia GI pipes for Scour Pipes

65mm dia GI for Delivery Pipe

75mm dia PVC Thread Coupler

65mm Ø GI coupler

65 mm GI Flange set

63mm dia PVC Thread Coupler

65mm Ø GI Tee

65mm Ø GM gate valve

Refilling the foundation with excavated earth including consolidation as directed by the TWAD Board officers.

Platform Earthwork 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.

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.

Brick Work in Cement Mortar 1:5 using Country Bricks including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Plastering with cement mortar 1:4mix to 12mm thick including cost and conveyance of all materials to site and all labour charges etc complete.

Filling the stones in soakpit incluiding the cost and conveyance of materials 40mm

Rcc Precast rings

Ring and RCC Cover Slab

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches for laying of pipes for water supply and sewerage works in the following type of soils as directed by Departmental officersHard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil.

a.63mm OD PVC Pipe

b.63mm OD PVC Coupler

c.Solvent Cement

Laying and jointing of Following PVC Pipes with coupler and specials

Refilling the excavated earth other than sand after pipes are laid

Labour charges for GI Pipe fixing charges

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}

G.Subramaniyan