Construction of 100000 Litres Capacity OHT Tank of 12m Staging height at near Klaiyarangam T. Jedarpalayam H/o.T. Jedarpalayam at Namagiripet Block of Namakkal District PAR, 15th CFC Savings Fund and General Fund -2025-2026

Construction of 100000 Litres Capacity OHT Tank of 12m Staging height at near Klaiyarangam T. Jedarpalayam H/o.T. Jedarpalayam at Namagiripet Block of Namakkal District PAR, 15th CFC Savings Fund and General Fund -2025-2026

Earthwork excavation and dwposition on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by 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

Second depth of 0.35m

Sand filling with clear river sand including watering, consolidation etc.,complete for Foundation as directed by Bdo officers

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

RCC 1:11/2:3 using 20mm HBG Metal excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing

Below 1.50m from GL

Upto GL

Above Gl and Upto 4.50m Height

Above 4.50m and upto 7.32m Ht from GL

Above 7.32m and upto 10.98m Ht from GL

From 10.98m upto 14.64m ht above GL

Provinding steel centering using MS plates of size 90cmx60cm 13 grade to 10 grade thick welded with 25mmx25mmx3mm MS angles supported with country wood stantling of size 10cmx6.5cm at 90 cm C/C strutting with casurina props of 100m to 13cm dia as directed by Board Officers.

SQUARE Surface

Columns below GL and above GL upto 3.30m ht

Columns above 3.30m upto 4.30m ht from GL

Columns above 4.30m upto 5.30m ht from GL

Columns above 5.30m upto 6.30m ht from GL

Columns above 6.30m upto 7.30m ht from GL

Columns above 7.30m upto 8.30m ht from GL

Columns above 8.30m upto 9.30m ht from GL

Columns above 9.30m upto 10.30m ht from GL

Columns above 10.30m upto 10.90m ht from GL

Plane Surface

Below G.L and upto 3.30m ht above GL

From 3.30m to 4.30m ht above GL

From 6.30m to 7.30m ht above GL

From 10.30m to 11.30m ht above GL

From 11.30m to 12.30m ht above GL

Circular Surface

Centre Below Gl and Above GL to 3.30m

Centre Column From 3.30m to 4.30m Height

Centre Column From 4.30m to 5.30m Height

Centre Column From 5.30m to 6.30m Height

Centre Column From 6.30m to 7.30m Height

Centre Column From 7.30m to 8.30m Height

Centre Column From 8.30m to 9.30m Height

Centre Column From 9.30m to 10.30m Height

Centre Column From 10.30m to 10.90m Height

Curved Surface

Upto 3.30m height (From Floor Slab)

From 10.30m to 11.30m Height

11.30m to 12.30m 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 Board officers.

Painting two coats using ready mixed Plastic Emulsion paint inlcuding priming coat including cost and conveyance of all materials to site and all labour charges etc comoplete

Supplying and Fixing in Position of Cut Stone set in Cm 1:3 using well dressed cut stone supporting inlet pipe inside the tank and as directed by the officers

Provision for pipe connection arrangements for inlet outlet, scour and overflow etc., includeing 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 as detailed below.

For Inlet & Outlet Arrangements

80mm GI Pipes

Fabrication,supply, delivery and fixing of outside MS ladder of 45cm wide made out of 50x50x6m 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 10,000 lit. capacity OHT of suitable inclined length, including bottom anchorage and 6transportation and as directed by Board officers.

Supply and delivery and fixing position of CI man hole cover and frame of Size 60x60cm on roof slab and as directed by the officers The manhole frame and cover should be of light duty and conforming to ISI 1726/1974

Supply and Delivery and Fixing in Position of 150mm dia AC Ventilators on the roof Slab and as directed by the officers

Refilling the Foundation for Service reservoir with excavated earth (other than sand) in layers of 15cm thick well rammed,watering and consoildating etc Complete complying with standard Specification as directed by the officers

Providing and fixing of RCC inner access ladder in RCC 1:1:5:3 (one cement, one and half sand and three aggregates) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete curing etc., to required height and clear width of 45cm consisting of two Nos. of vertical post of 10cm x 15cm and step slab of 25mm x25mm etc., complete and as directed by Board officers.

Provision for EPL Connection - Sub Estimate

50mm GI Pipe

75mm PVC Pipe 6ksc

Earth Work excvation and depositing on bank with intial lead and lift including all charges )

Laying and Jointing of PVC Pipe into Trench

Refilling the earth work after into trench

GST Amount for providing Service to Government Contract Works for the above RENEWAL Works. { GST Amount is the Total GST Amount for overall quoted amount above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)

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