Construction of 30000 Ltr OHT 12M at Kolathur H/O Ariyur AT MOHANUR BLOCK IN NAMAKKAL DISTRICT UNDER Mines Minerals 2026 2026

Construction of 30000Ltr OHT (12M) at Kolathur H/O Ariyur AT MOHANUR BLOCK IN NAMAKKAL DISTRICT UNDER Mines & Minerals - 2025 - 2026

Earthwork excavation and dwposition on bank with an initial lead of 10m and lift of 2m in the following classification of soils as directed by 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

First depth of 2 M

Second depth of 2 M

Cement concrete 1:4:8 (one cement four sand and eight aggregates) using 40mm HBGS for levelling course for fooundation including the cost of mixing concrete, ramming, curing etc., complete as directed by Board officers.

Brick work in following Cement Mortar using best quality Fly ash bricks of size 23x11x7cm for foundation and basement including curing etc.,complete complying with standard specification.

Cement concrete 1:2:4 mix using 20mm ISS metal including cost and conveyance of all materials to site and all labour charges for mixing,laying and curing etc complete for 10 cum.

Plastering with Cement Mortar 1:5 (One cement and Five M.Sand), 12mm thick in all floors including curing etc. complete complying with standard specification and as directed by the departmental officers.

RCC 1:11/2:3 using 20mm HBG Metal excluding cost of reinforcement, centering, shuttering strutting, but including cost of mixing concrete, placing, vibrating with mechanical vibrator, finishing

For items 1.5 M to 4.5 M below GL

For items 0 to 1.50 M below GL

For items 0 to 4.5 M above GL

For items 4.50 M to 7.32 M above GL

For items 7.32 M to10.98 M above GL

For items 10.98 M to 14.64 M above GL

For items 14.64mto18.30mabove G L

Provinding steel centering using MS plates of size 90cmx60cm 13 grade to 10 grade thick welded with 25mmx25mmx3mm MS angles supported with country wood stantling of size 10cmx6.5cm at 90 cm C/C strutting with casurina props of 100m to 13cm dia as directed by Board Officers.

PLANE SURFACES

Up to3.30m ht from GL

Above GL to 3.30 m(B1)@2.865m

5.30m to 6.30 m(B2) @ 5.73 m

8.30 to 9.30 m(B3) @ 8.595 m

11.30 to 12.30m above G L

Curved Surface

Square column

Below G.L.

0 m to 3.30m above G L

Painting the new plastered surfaces with two coats of approved (snowcem)cement paint for all the external surface of the structure including cleaning, preparing the surface, curing etc., complete and as directed by TWAD Board Officers using the following colour i) Ivory for all external surface except the projection of floor slab/roof slab and hand rails, II) Golden brown for the projection of the floor slab / roof slab and handrails

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) for delivery at site of work including loading, freight, unloading, stacking, transit insurance charges, taxes etc. complete . RTS Rods

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 (weight4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery andfixing of 32 mm GI pipes medium for hand rails from I stageto IVth stage. RCC M30 Grade mix for Landing slab 5 nos. atGround 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 RCC inside access ladder of approved pattern and design in RCC 1:11/2:3 (One cement and one and half sand and three HBG stone of 20mm size ISS gauge) 0.40m width, 0.10m thickness, 0.12m breadth for side post, 0.05m thickness 0.12m breadth for steps with suitable inclination including cost of cement, reinforcement centering, finishing, curing etc., complete and as directed by TWAD Board Officers.

Providing RCC ventilating arrangements as directed by TWAD Board officers-Separate sheet

Supplying and fixing in position of cut stone of size 0.45m x 0.45m x 0.15m at site in CM 1:3(One part cement and three part sand) at bottom of inlet pipe inside the Sump the suitable size and as directed by the TWAD Board Officers.

Supply, delivery and fixing in position of 0.60x0.60 m C.I manhole frame and cover heavy duty approved patten at the roof slab and as directed . the manhole frame and cover should of light etc., complete SOR P.NO 81 WD-M1358

Refilling the sides of foundation with excavated earth (other than sand) in layers of 15cm thick,watered well rammed and consolidated etc. complete complying with standard specification removing and spreading the surplus earth at the places shown and as directed by the 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 enamel paint etc., complete (As per seperate estimate)

65 mm Ø GI pipes

65 mm Ø GI pipes

50 mm Ø GI pipes

50 mm Ø GI pipes

65 mm GM gate valve

Supply and delivery of 63mm 4Ksc PVC pipe including all labour charges etc

Supply and delivery of 63mm 6Ksc PVC pipe including all labour charges etc

Earth work excavation for laying of pipe line including all charges etc

Laying and Jointing of PVC pipe line including all charges etc

Laying and Jointing of GI pipe line including all charges etc

Refilling the Trench after laying of pipe line including all charges etc

GST Amount for providing Service to Government Contract Works for the above RENEWAL Works. { GST Amount is the Total GST Amount for overall quoted amount above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)

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