OHT 30,000 Litter Poolathur

Consrtriction of 30,000 Litres Capacity RCC OHT ( 12.00 M Staging ) for Navalar Street @ Poolathur H/O Poolathur.

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 eart

First depth of 2m

Second depth of 1m

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 M.Sand and eight hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick, well rammed, consolidated and curing etc. complete complying with standard specification

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

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 7.32m above GL

For items 7.32m to 10.98m above GL

For items 10.98m to 14.64m above GL

For items above 14.64m & up to 18.30m from GL

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. (Payment for centering shall be given after the concrete is laid)

PLANE SURFACES Below G.L.

Below G.L.

ABOVE G.L. to 3.30m

CURVED SURFACE

0 to 3.30m from floor level

Square column

Below G.L.

Ground level to 3.30 m

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Painting two coats of newly plastered wall surface with ready mixed plastic emulsion paint of first class quality and of approved colour over a priming coat including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification.

FabricatFabrication, 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 c

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 cu

Providing PVC ventilating arrangements mosquito proof nylon net with 110 mm 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

Refilling the foundation with excavated earth including consolidation as directed by the TWAD Board officers. As per item l(a) + l(b) Less item 2,3 & 4A & 4B Total

Provisions for pipe connection arrangements for inlet & outlet scour and overflow etc.,cincluding cost of pipes, specials, valve, labour charges for lifting , aligning, cutting,threading,fixing and painting of GI pipes with two coat of approved quality enamel paint etc.,complete

Manhole cover 60 x 60 cm (heavy duty) with frame

65mm dia GI pipes over flow

50mm GI pipefor Scour Pipe

50mm dia GI pipes Delivery pipe

90mm PVC male Thread coupler

63mm PVC Male thread coupler

65mm GI Tee

65mm GI Bend

65mm GI coupler

65mm GI Union

65mm GI elbow

65 x50 mm GI reducer (Medium)

75x63 mm PVC reducer

75mm dia PVC Threaded coupler

75mm X 90mm PVC Reducer

75mm X 63mm PVC Reducer

65MM GM Gate Valve

50MM GM Gate Valve

50mm GI Coupling

Provision for Waste water Harvesting structure with Platform around the tank including cost and conveyance of all materials to site and all labour charges etc.,complete

Provision for Name Board Arrangement

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}