Construction of 10000 Ltr with plumbing works in THogaimalai PHC Ho Thogaimalai

Name of the Work : Construction of 10000 Litre OHT with Plumbing works in Thogamalai PHC, under Focus Block Development Programme (FBDP) for the Year - 2025-26

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 2 m For foundation and for GL Brace

Second Depth of 1 m SDR for Foundation

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.

For Items 1.5m to 4.5m below GL, Footing, Rectangular portion, Trapezoidal Portion

For Items 0 m to 1.50 m below GL, for Column upto GL, GL Brace, GL brace extended portion and GL landing platform for ladder.

For Items 0 m to 4.50 m below GL, for Column upto GL, GL Brace No.1 at 2.715m, GL brace extended portion and GL landing platform

For Items 4.51 m to 7.320m above GL Columns, Brace No.2 @5.58m, For brace Extender portion and Landing platform for ladder

For Items 7.32 m to 10.98 m above column up to 9.30mht.

For Roof slab 10.90m to 11.08m

For Items 10.93 m to 11.08 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, 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.

A) Plance Surfaces - below GL for Footing Side, GL Brace Bottom, GL Brace Sides, GL brace extn portion - bottom, Extn Portion-out side and inside - Landing Platform - Inside, outside and Bottom

B) 3.31 m to 4.30 m

d) Curved Surface 0 to 3.30m from floor level

Square column Below GL - Ground level to 3.30m

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. - Up to16 mm dia and above 16 mm dia rods

Fabrication, supply, delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for both sides and for steps at 30cm C/C welded jointed etc ., for I staging from GL to 1st level brace (weight 4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery and fixing of 32 mm GI pipes medium for hand rails from I stage to IVth stage. RCC M30 Grade mix for Landing slab 5 nos. at Ground Level- 1No. and above Ground Level - 4Nos. Supply and fixing of 32mm GI pipe medium for hand rails for the Landing slab. Supplying and fixing of MS Base plate of 100mm X 100mm X 6mm thick for fixing Anchore fastener bolt for fixing of hand rails at Landing slab and MS Ladder providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved Type Design and as directed by TWAD board officers.

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 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 25mm x 25mm etc., complete and as directed by TWAD Board officers.

Providing GI ventilating arrangements mosquito proof nylon net with 110 mm PVC pipes and cowl and as directed by TWAD Board officers

Providing manhole cover of size 0.60 m 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.

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

Providing GI pipe connection to the OHT

65 mm GI Pipe

50 mm GI Pipe

65 mm GM Gate Valve

65 mm GI Coupling

65 mm GI Tee

65 mm GI Elbow

Provision for Labour charges for Inlet and Outlet pipe connection including all cost and conveyance etc., complete

Provision for Rainwater Harvesting structure etc., complete

Provsion for Name Board.

Providing pipe connection

Earth work excavation and depositing on bank with in initial lead of 10 m and initial lift of 2m in hard stiff clay, stiff black cotton soil, hard red earth, earth mixed with small sized boulders and hard gravelly soil as per SS 20B

Supply of 63mm PVC Pipes including cost and conveyance of all materials to site and all labour charges etc., completed.

Labour charges for laying and joining 40mm HDPE Pipes including all labour charges for laying pipes in proper alingment and gradient including cost of solvent cement etc., complete.

Refilling with excavated earth after laying of pipes including all labour charges Solvent cement etc., complete.

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}

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