Construction of Over Head Tank in Andiayapalayam at Andampallam Pts - 2025-26

Construction of New 60000 Liter OHT with 12m Staging Height in Andampallam Habitation of Andampallam Panchayat @ Tiruvannamalai Block

Earth work excavation & depositing on bank with an initial lead of 10 metre & initial lift of 2 metre in Hard shift clay, stiff block cotton, hard red earth shales, murrum, gravel, stoney earth, and earth mixed with small size boulders and hard gravelly soil (SS 20B) for foundation including shoring, strutting, baling out water providing danger light wherever necessary depositing the surplus earth on bank and other incedential charges etc., complete and as directed by TWAD board Officers

First depth of 2m From 0 to 2 m below GL

Second depth of 2m From 2m to 4 m below GL

Filling in the foundation with filling Sand including cost and conveyance to the site and all labour charges for filling as per standard specifications

Plain Cement Concrete 1:4:8 (one cement, four sand and eight hard granite broken stone of 40mm size ISS gauge) for foundation and footing including mixing, placing, ramming ,finishing curing etc. complete in accordance with standard specification and as directed by the TWAD Board Officers.

Reinforced Cement Concrete Mix M30 grade using 10mm & 20mm Hard blue granite Broken stone (machine crushed) excluding the cost of RTS rods for reinforcement and centering, strutting, shuttering but including cost of all materials mixing, laying, Vibrating the concrete with mechanical vibrators, ramming, consolidating, finishing and curing etc., Complete and as directed by the TWAD Board Officers.

Below 1.5m from GL (Column footing)

0m to 1.50m below GL

0m to 4.50m above GL

4.50 m to 7.32 m above GL

7.32 m to 10.98 m above GL

10.98 m to 14.64 m above GL

14.64 m to 18.30 m above GL

Supply and erection of steel centering, shuttering for soffits and sides including necessary supports and strutting for all RCC works using MS sheets of suitable size of BG10 stiffened with MS angle of size 25 X 25 X 3 mm for boarding laid over I type MS Truss of size 25 X 25 X 3mm about 90cm c/c and supported by 40mm GI pipes (Medium) spaced at 75cm c/c etc complete and as directed by the TWAD Board Officers.

Plain Surface(Below GL )

From GL to 3.30m

From 3.31 to 4.30m

From 5.30m to 6.30m above GL

From 8.30m to 9.30m above GL

From 11.30m to 12.30m

Curved Surface - upto 3.30m ht.(0.0m to 3.30m)

Square Column Below GL and upto 0.0m 3.30m

above GL to 3.30m

3.31m to 4.30m ht

4.31m to 5.30m ht

5.31m to 6.30m ht

6.31m to 7.30m ht

7.31m to 8.30m ht

8.31m to 9.30m ht

9.31m to 10.30m ht

10.31m to 11.30m ht

11.31m to 11.45m ht

Supplying, cutting, bending, tying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire etc.( The steel should conform to the relevant ISspecification and supplied with test certificate Fe. 415 grade as per IS specification No.1786/1985 and as amended from time to time) delivery at site of work including loading, freight, unloading, stacking, transit insurance charges, taxes etc. complete.and as directed by the TWAD Board officers.

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 (using cement paint of colour as approved by the Departmental officer) and as directed by the TWAD Board officers.

Fabrication, supply, delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for both sides and for steps at 30cm C/C welded jointed etc ., for I staging from GL to 1st level brace (weight 4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery and fixing of 32 mm GI pipes medium for hand rails from I stage to IVth stage. RCC M30 Grade mix for Landing slab 5 nos. at Ground Level- 1No. and above Ground Level - 4Nos. Supply and fixing of 32mm GI pipe medium for hand rails for the Landing slab. Supplying and fixing of MS Base plate of 100mm X 100mm X 6mm thick for fixing Anchore fastener bolt for fixing of hand rails at Landing slab and MS Ladder providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved Type Design and as directed by TWAD board officers.

Providing and fixing of RCC inner access ladder in RCC 1:11/2 :3 (one cement,one and half sand and three aggregate) using 20mm HBG stone for OHT including cost of reinforcement, placing grill in position, centring,shuttering charges, mixing concrete,curing etc. to required height and clear width of 45 cm consisting of 2 nos. of vertical post of 10 cm x 15 cm and step slab of 25mm x 25mm etc.complete 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 of size 0.30m x 0.30m x 0.15m in CM 1;3(one cement and three sand) below inlet pipe for Service Reservoir 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

Pipe connection arrangements for inlet,outlet,scour and overflow etc. including cost of pipes,specials,valve,labour charges for lifting, aligning, cutting, threading ,fixing and painting of GI pipes with two coats of approved quality enamal paint etc. complete as detailed below.

65 mm GI Pipe Over Flow

65 mm GI Pipe Deleivery

50 mm GI Pipe for Scour

90 mm PVC Thread Coupler

75 mm PVC Thread Coupler

63 mm PVC Thread Coupler

65 mm GI Tee

65 GI Elbow

65 x 50 mm GI Reducer

65 mm GI Union

65 mm GI Flange

65 mm GI Coupling

65 mm Gate Valve

50 mm Gate Valve

90mm PVC Bend

90mm PVC Tee

63mm PVC Elbow

80mm GI Pipe inlet

50mm GI Pipe

Refilling the foundation with excavated earth including consolidation as directed by dept officer

Laying charges including cutting and also PVC pipes including cost and conveyance of all charges etc. 90mm

63mm 6Ksc pipe

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

Providing Hand rails over the Roof slab by using 32 mm GI Pipe with 40mm x6mm MS Flate and fixied with 12mm dia fastner bolt 75mm long and as directed by dept officer

Earth work excavation and depositing on bank with intial lead and lift in all clasuses of soil such as Hard Gravely soil, Gravely soil except Hard Rock requiring Blasting etc complete as per SS20B for narrow foundation

Supply of PVC pipes including cost and conveyance of all charges etc., Main line 90mm pvc 6kg

Dist line 63mm pvc 4kg

Provision for Name Board

Construction of plateform and compound wall arround the OHT

Earthwork excavation and depositing on bank with initial lead and lift in hard stiff clay soil and hard gravel soil as per standard specification SS 20 B for narrow foundation

Cement Concrete 1:4:8 mix using 40mm ISS HBG metal including cost and conveyance of materials to site and all other labour charges, etc. complete.

Rein forced Cement Concrete 1:11/2:3 mix using 20mm HBG metal for Foundation and Basement etc. Complete

Supplying erectering of sides including supports and strutting up to 3.29m height for plane surfaces in all floors etc. complete.

Supplying and fabrication of steel including cost conveyance and cutting pending, tying and placing in position

Brick Work in Cement Motar 1:5 for super Structure using Country brick etc., Complete

Plastering with C.M 1:5 mix 12mm thick Including cost and conveyance and labour Charges etc., Complete.

Plastering with cement mortar 1:4mix to 20 mm thick includingcost and conveyance of all materials to site and all labour

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.

Provision for Soak pit for RCC Ring 3 nos with cover slab

Filling 40 mm metal

Filling 20mm metal

110mm dia PVC Pipe

110mm dia PVC bend

Provision for Gate

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}

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