Construction of OHT 30000lits at kallimedu in US.magalam

Amount

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 First depth of 2m

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.

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.

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.

Painting two coats with approved cement paint over one coat of priming coat over Exterior Emulsion exposed surface of the Reservoir including cleaning, preparing the surface and curing 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 30,000 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 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 45cm 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 0.60 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.

Providing GI ventilating arrangements mosquito proof nylon net with 50 mm GI pipes and cowl and as directed by TWAD Board officers

Painting TWAD Board emblem 1 x 1 on the SR with enamel paint as per Board's specification and as directed by TWAD Board officers

Supply & Fixing of Hand Rails Arrangements

Supply of GI Pipes for OHT Connections 65 mm dia

Supply and Delivery of G.M.Gate valve 65mm size

65 mm GI tee

65 mm GI bend

65 mm GI coupling

Labour charges for fixing of G.I. Pipes & Specials for OHT pipe connections as directed by the TWAD Officers,

Chlorination

Platform Earthwork excavation and depositing on bank with an intial lesd & lift in hard stiff clay, gravelly soil, shales, murrams earth mixed soil as per SS 20 B for foundation

Sand filling with good river sand including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

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 in 1:2:4 mix using 20 mm metal used for Wearing Coat including cost & conveyance of all materials to site and all labour charges for curing, compacting etc., complete.

Cement concrete in 1:3:6 mix using 20 mm metal used for Wearing Coat including cost & conveyance of all materials to site and all labour charges for curing, compacting 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}

G.Subramaniyan