Salem District - Omalur Block - Construction of 60,000Lit OHT (12.00m Stage) at Perumal Kovil Near H/O Puliampatti Panchayat - MLACDS -2025-2026

Construction of 60,000Lit OHT (12.00m Stage) @ Perumal Kovil Near H/O Puliampatti Panchayat

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

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 Bord officers

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.

Below 1.5m to 4.50m below GL

0m to 1.50m below GL

0m to 4.50m above GL

4.50m to 7.32m above GL

7.32 m to 10.98 m above GL

For items 10.98m to 14.64m above GL

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

Below GL

From 3.30m-4.30m

Square Column Below GL and upto 3.30m above GL

3.31m to 4.30m ht

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.

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.

Supply delivery and fixing of staircase with M30 grade concrete for landings, MS ladder of 0.45m wide using 50x50x5mm MS angles for sides and steps at 0.30m c/c, with GI pipe handrails using 32mm GI pipes for railings and verical support at 0.45m C/c, MS flats (Size 40mm x 5mm ) for horizontal ties at 0.3m c/c and at bottom with Anchor fastener bolts of size 12mm x 75mm including cost of materials labour for fabrication of handrails fixing, painting etc., complete.

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.

Supplying and fixing of water tight Manhole frame and cover ofMedium type) of size 0.60 x 0.60m in RCC 1 : 11/2:3 with suitable reinforcement and 50 x 50 x 6mm MS angle fixed along edges and as directed by the TWAD Board Officers.

65 mm GI pipes for scour pipe

65 mm GI union

65mm GI Elbow

65mm GI coupling

65 mm GM gate valve

Earth work excavation and deposting on bank with an initial lead of 10m & lift of 2m for pipe laying works with standard trench width and depth etc., complete

Supply and delivery of 63mm OD 6 KSC PVC Pipe as per ISI Marked Standarad specification.

Supply and delivery of 75mm OD 6 KSC PVC Pipe as per ISI Marked Standarad specification.

Lowering PVC pipes and specials to trench and laying to proper grade and alignment, jointing with PVC couplers with cement paste.

Refilling the excavated earth as per the standard specifications (63mm)

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

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

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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