Construction of 30000 lit of OHT at Kallangkadu H/o Amaragundhi Panchayat Tharamangalam Block at Salem District MLACDS - 2024-2025

Amount

CONSTRUCTION OF 30000 LITER OVER HEAD TANK @ KALLANGKADU HABITATION H/O AMARAGUNDHI

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

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.

Cement Concrete 1:1-1/2:3 (One Cement, One and a half crushed stone M.Sand and Three hard broken stone jelly) using 20 mm gauge hard broken granite stone jelly for all RCC items of works excluding cost of reinforcement grill and fabricating charges centering and shuttering but including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary and bearing surfaces of walls, beams etc. shall be finished smooth with Cement Mortar 1:3 (One Cement and Three M.Sand) and kraft paper laid over it without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers Items 1.50 m to 4.50m below GL

For items 0 to 1.50m below GL

For items 0m to 4.5m above GL

For items 4.51m to6.0 m above

For items above 6.01 m & up to 9.0 m from GL Floor Slab

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, I type trust of size 25x25x3mm spce at about 90cm c/c and supported by 40 mm GI pipe (Medium) spaced at 75 cm complied to centre complying with standard specifications etc., complete and as directed by TWAD Board officers. (PLANE SURFACES-Below GL

From G.L 0.00 to-3.30m

From G.L 3.30 to-4.30m

For Square Coloumn(4.30-5.30)

Square Coloumn(5.30-6.30)

Curved SurfaceUpto 6.31 to 7.30 m height

Curved Surface Upto 7.31 m to 8.30m height

Curved Surface Upto 8.31 m to 9.30m height

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.

Fabrication, 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 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 transportation and as directed by TWAD Board officers.

Providing and fixing of RCC inner access ladder in M20 (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 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.

50mm GI Pipe

50mm GI Coupling

50mm GI Elbow

50mm GM GateValve

Supply and delivery of 63mm OD 6 KSC PVC Pipe as per ISI Marked Standarad specification.

Earth work excavation and deposting on bank with an initial lead of 10m & lift of 2m for pipe laying works with standard trench width and depth etc., complete

Lowering PVC pipes and specials to trench and laying to proper grade and alignment, jointing with PVC couplers with cement paste.

Refilling the excavated earth as per the standard specifications (63mm)

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}