Construction 30000 Lit OHT (12.00m Stage ) at Kottamedu Kollan House Near H/o Chettimankurchi in Edappadi Block at Salem District - SFC (DP) 2024-2025

Amount

1.) Construction of 30000 Liter Over Head Tank(12m Stage) at Kottamedu Kollan House Near H/O Chettimankurichi

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

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.

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)

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

For items above 10.98 m & up to 14.64 m from GL

For items above 14.64 m & up to 18.30 m from 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, 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-o-3.3m Below & above G.L)

G.L to 3.30m

Square column - Below G.L. &above G.L 0-3.30

Curved Surface - 11.30m to 12.30m

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.

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 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 110mm PVC vent cowl arrangements mosquito proof nylon net and as directed by TWAD Board officers

Supply and Fixing of Cut Stone Size 0.30mx0.30mx0.15m in CM 1:3

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.

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

Supply and delivery of GI pipe and specials as per ISI standerd specifications - (50mm dia GI Pipe)

65 mm GI Pipe

65 mm GI Coupling

65mm GI Elbow

50mm GI Elbow

50mm GI Coupling

65x50mm GI Reducer

50mm Gate valve

65mm Gate valve

Labour charges for GI pipe connection to the OHT, for inlet, outlet, overflow and scour arrangements including cutting and threading, earth work excavation & refilling.

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

Supply and delivery of 63mm OD 4 KSC PVC Pipe as per ISI Marked Standarad specification.

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)

Sub Estimate For Soak Pit

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.

Brick work in cement mortar 1:5 mix using country bricks 83/4"x41/4"x23/4" and conveyance of all materials to site and all labour charges etc complete

Filling the soak pit with 225 mm boulders as per specification

Filling the soak pit with 40mm metal as per specification

Filling the soak pit with 20mm metal as per specification

Plastering with cement mortar 1:5 mix to 12mm thick including cost and conveyance of all materials to site and all labour charges etc

Painting two coats with approved cement paint over one priming coat of white cement over cement plastered wall surface and ceiling including cleaning preparing the surface and curing etc., complete

Supplying and fixing P.V.C down fall pipe of 110m dia with necessary shoes, bends,& clamps etc.,

Supplying and fixing of RCC rings 750mm dia for Leach pit including all charges etc complete

Casting and fixing of RCC precast slab of 75mm thick 1:2:4 using 20mm HBG jelly

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}

P THANGAVEL (BID ID -1178768)