Construction of 30,000 litrs OHT ( 12.00m Staging ) in Thappukundu Village at Thappukundu Panchayat at Jal Jeevan Mission Scheme 2021-2022

Amount

Earthwork excavation and depositing on bank with an initial lead of 10 m and lift of 2m in Hard stiff clay blcak cotton, hard red earth, shales, murram, ordinary gravel, stoney earth and earth mixed with small size boulders for foundation SS 20B as direct

First depth of 2m

Second depth of 1m

Sand filling 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 leveling course including the cost of mixing concrete, ramming, curing etc. complete as directed by TWAD Board officers

RCC 1:1.5:3 (One cement, one and half sand and three aggregates)using 20mm HBGS excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing, curing etc. co

1.5m to 4.5m below GL

0 to 1.5m below GL

0 m to 4.5m from GL

4.5 m to 7.32m from GL

7.32m to 10.98m from GL

10.98m to 14.64m from GL

14.64m to 18.30m from GL

Supplying and erecting steel centering for sides and soffits including necessary supports and shuttering to the required height for RCC items using MS sheets or suitable size of BG 10 stiffened with welded MS angles of size 25mm x 25mm x 3mm of boarding,

Plane Surface

Below G.L.

G.L. to 3.30m

Curved surface

Square columns

Below GL

Painting two coats with approved Plastic Emulsionover 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 wide 45cm made out of 50x50x6mm MS angle for sides and steps in 16mm MS plain rods fixed at 30cm centre to centre with hand rails at top top for 2 m inclined height and also with necessary proj

Providing and fixing of RCC inner access ladder in RCC 1:1.5:3 (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 curi

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

Providing and fixing of cut stone (Roughdressed) set in CM 1:3 of size 0.45 X 0.45 X 0.15M at site including cost of all materials, labour charges, curing etc., complete and as directed by TWAD Board Officers.

Providing manhole cover of size 0.60 x 0.60M in RCC 1:1.5:3 with suitable reinforcement and 50x50x6mm MS angle fixed along edges and as directed by TWAD Board officers

Provision for pipe connection arrangements for inlet, outlet scour and overflow etc. including cost of pipes, specials, valve, labour charge for lifting, aligning, cutting, threading, fixing and painting of GI pipes with two coats of approved quality enam

80mm dia GI pipes for inlet connection

80mm dia GI pipes for over flow & rain water harvesting pipe

80mm dia GI pipes for scour pipe

80mm dia GI pipes for delivery pipe

80mm dia GI H.Nipple

80mm dia GI Threaded coupler

80mm dia GI Tee

80mm dia GI Elbow

80mm dia GI Bend

80mm dia GI Union

80mm dia GM Gate Valve

110 mm dia OD PVC pipe

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

Plastering in CM 1:3 10mm Thick ( One cement and three sand ) - over roof slab of reservoir with proper gradient of 1/50 for drainnthe rain water at the center of roof slab by connecting the rain water harvesting pipes with over flow pipe as per type design and as d

Supply and fixing of PVC gratings of size 20 x 20 cm for fixing in the roof of the reservoir. (L.R.)

Recharge / Soakpit for rain water harvesting for reservoir with flat roof:

Earth work excavation and deposting on bank with initial lead of 10 m and initial lift of 2 m for Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small sized boulders and hard gravely soil as

Brick work in CM 1:5 ( One cement and six sand ) using country bricks of size 8.75" x 4.25" x 2" including curing etc., complete for parapet wall alround roof slab as directed by TWAD Board officers.

Plastering in CM 1:5 12mm Thick ( One cement and three sand ) - over roof slab of reservoir with proper gradient of 1/50 for drainnthe rain water at the center of roof slab by connecting the rain water harvesting pipes with over flow pipe as per type design and as d

Supply, delivery and filling of clean river course sand for the recharge pit as per type design.

Supply, delivery and filling of 20 mm size brick bats as per type design.

Supply, delivery and filling of 40 mm size brick bats as per type design.

Supply, delivery and fixing of splash pad of size 500 x 500 x 50 mm at the over flow junction point with recharge pit. (L.R.)

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}

C.Thangachamy