Construction of 30000Litres Capacity OHT Tank of 7.50m Staging height at Pungampalayam Colony H/O Koppanampalayam in Kabilarmalai Block of Namakkal District under LAYOUT A/C and POOLED ASSINE REVENUE FUND - 2025-2026 KBM-1

Construction of 30000Litres Capacity OHT Tank of 7.50m Staging height at Pungampalayam Colony H/O Koppanampalayam in Kabilarmalai Block of Namakkal District under LAYOUT A/C & POOLED ASSINE REVENUE FUND - 2025-2026 KBM-1

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 2.00m

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

For items 1.5m to 4.5m below GL

For items 0 to 1.50m below GL

For items 0m to 4.5m above GL

For items 4.51m to 7.32 m above

For items above 7.32 m & up to 10.98 m from 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.

PLANE SURFACES

0-3.3m Below & above G.l

Curved Surface

Square column

Below G.L. &above G.L 0-3.30 (3.30+1.65)

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 approved quality Cement Paint over one cost of priming coat exposed surface of the Reservoir including cleaning, preparing the surface and curing etc., complete and as directed by Board officers.

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.

Providing and fixing of RCC inner access ladder in M30 (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 4Scm consisting of two Nos. of ve~ical post of 10cm x lScm and step slab of 2Smm x 25mm etc., complete and as directed by TWAD Board officers. Providing PVC ventilating arrangements mosquito proof nylon net with 1l0mm PVC pipes and cowl and as directed by TWAD Board 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 CI with suitable reinforcement and 5O x 5O x 6mm MS angle fixed along edges and as directed by TWAD Board officers.

Providing OHT pipe connection including cost of pipes and labour charges (vide separate estimate) 50 MM GI PIPE (M)

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

Supply and Delivery the Following PVC and GI Pipe Including all Cost and all Labour Charges etc63mm dia Pvs pipe 4ksc

Earthwork execavation in all soil to a linear measurement width of 0.65 m and depth of 1.05m

Laying and Jointing of PVC pipe and specials complying with Standard spceils

Refilling with execavated earth after laying pipe line complying with Standard specification

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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