Construction of 1 LL Capacity Over Head Tank 16M Stage Height Arrangements at Kulacharivattam Ward36 in Thirupathur Municipality

Amount

Earth work excavation for foundation by Mechanical means for Isolated & Combined Footing etc in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 100 mts and clearing and levelling including dressing of sides and raming of bottoms etc., complete complying with standard specification and as directed by the departmental officers.- Upto 2.40m Footing Depth. For 1st depth of 0 m to 2 m In hard stiff clay, stiff black cotton, hard red earth, shales, murrams, gravel, stoneyearth and earth mixed with small sized boulders Outer & Inner Column

Earth work excavation for foundation by Mechanical means for Isolated & Combined Footing etc in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 100 mts and clearing and levelling including dressing of sides and raming of bottoms etc., complete complying with standard specification and as directed by the departmental officers.- Upto 2.40m Footing Depth. For 1st depth of 0 m to 2 m In hard stiff clay, stiff black cotton, hard red earth, shales, murrams, gravel, stoneyearth and earth mixed with small sized boulders G.L. brace

Supplying and filling in foundation, basement, etc with filling crushed stone sand in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Cement Concrete 1:5:10 (One cement, Five crushed stone sand and Ten hard broken stone jelly) using 40 mm gauge hard broken jelly for flooring including laying, consolidating, finishing, rendering the top surface rough to receive the floor, curing, etc. complete complying with standard specification and as directed by the departmental officers. (The rate is inclusive of necessary planking for panelling wherever necessary and as directed by the departmental officers - Mixing by mechanical means

Providing and laying in position, Standardised Concrete Mix M-30 Grade in accordance with IS:456-2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cementcontent of 400 kg/m3 and maximum water cement ratio of 0.45, including admixture (plasticiser / superplasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete,improve workability without impairing strength and durability with about (5.0 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m') 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards. (No separate payment will be made by the Department for the excess usage of materials). Beyond 1.5 m below GL

Upto 4.50 m ht. Above G.L.

From 4.50 m to 7.32 m ht. From G.L.

From 7.32 m to 10.98 m ht. From G.L.

From 10.98 m to 14.64 m ht. From G.L.

Outer column 14.64-15.35 m

From 18.3 m to 21.96m

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) Square Column Column 0 to 3.3m ht above GL and below GL

Column above 3.3m to 4.3m ht from GL

column above 4.3 m to 5.3m ht from GL

column above 5.3 m to 6.3m ht from GL

column above 6.3 m to 7.3m ht from GL

Column above 7.3m to 8.3m ht from GL

column above 8.3 m to 9.3m ht from GL

column above 9.3 m to 10.3m ht from GL

column above 10.3 m to 11.3m ht from GL

column above 11.3 m to 12.3m ht from GL

column above 12.3 m to 13.3m ht from GL

column above 13.3 m to 14.3m ht from GL

column above 14.3 m to 15.3m ht from GL

column above 15.3 m to 16.3m ht from GL

Plain surface Below GL upto 3.3m

0 m to 3.3m ht from floor level

3.3 m to 4.3m ht from GL

7.3 m to 8.3m ht from GL

11.3 m to 12.3m ht from GL

16.3 m to 17.3 m from GL

Circular Column Column 0 to 3.3m ht above GL and below GL

Column 3.3 to 4.3m ht above GL

Column 4.3 to 5.3m ht above GL

Column 5.3 to 6.3m ht above GL

Column 6.3 to 7.3m ht above GL

Column 7.3 to 8.3m ht above GL

Column 8.3 to 9.3m ht above GL

Column 9.3 to 10.3m ht above GL

Column 10.3 to 11.3m ht above GL

Column 11.3 to 12.3m ht above GL

Column 12.3 to 13.3m ht above GL

Column 13.3 to 14.3m ht above GL

Column 14.3 to 15.3m ht above GL

Column 15.3 to 16.3m ht above GL -Curved surface

Curved surface From 0 to 3.3m from floor level

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel reinforcement grills of all variety like HYSD/CTD/TMTand all grade like Fe 500, Fe550D, Fe 500 D etc., for all RCC works as per design given including cost of steel reinforcement and G.I. binding wire, wastage etc. complete complying with standard specification and as directed by the departmental officers.(Contractor has to make his own arrangements for the supply of steel reinforcement and binding wire)

Painting New Plastered Wall Surface with Two finishing coats of ready mixed (Emulsion) of approved quality and colour over one coat priming coat in all floors including the cost of primer etc., complete complying with standard specification and as directed by the departmental officers.(The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

Providing Cut stone set in CM 1:3 (one cement and three sand) using well dressed cut stone supporting inlet pipe of size 0.45 x 0.45 x 0.15m for service reservoir etc., complete as per standard specifications and as directed by Engineer-in-charge

Providing and fixing of RCC inner access ladder in RCC M20 Grade Concrete Mix as per the standard specifications for OHT including grill in position, centering, shuttering charges, mixing concrete curing etc, to required height and clear width of 45cm consisting of two nos of vertical post of 10cm X 15cm and step salb of 25mm X 25mm etc,complete and as directed by Municipal Officers.(2.65m height)

Construction of RCC spiral staircase in RCC M20 Grade Concrete Mix as per the standard specifications of 1.80m diameter of 20m height for approach to the roof of Service Reservoir with RCC Handrails including earthwork excavation, providing CC 1:4:8 mix, RCC footing 1:1.5:3 mix, GL platform etc., and also including cost of steel reinforcement, fabrication charges, scaffolding, centering, precasting charges, cement, painting etc. complete as per standard specifications and as directed by Engineer. The staircase shall be braced to the column of service reservoir at suitable interval. (in the BOQ, quantity column the exact height to be mentioned from GL to roof slab bottom to get total value of work to be done.

Supplying and fixing of RCC M20 Grade Concrete Mix as per the standard specifications for RCC Handrails of 0.91 m height over the top of roof slab of approved pattern and design including the cost of reinforcement, centering, precasting, finishing, curing etc., complete as per standard specifications and as directed by Engineer-in-charge

Supplying and fixing in position CI manhole covers with CI frames (Heavy duty) of size 60cm x 60cm of best approved quality as per standard specification etc., complete compying with standard specifications

Providing ventilating arrangements over roof slab and roof dome of S.R.

Supply, delivery and installation of water level measuring system up to 1 mm accuracy to measure up to 30 m depth in wells/OHTs/ sumps with suitable sensor, level transducer with transmitter, 2 or 4 wire loop, all wetted parts in SS304 or above and with Remote control and suitable LED display unit easily readable upto 10m distance, cabinet to house remote display unit, Low/High alarm with suitable speaker, suitable cables with data storage capacity for 1 year and data transfer facility and with all required accessories including 1 year free replacement warranty etc., complete. WD-M1384 TWAD 25-26

Refilling with excavated earth other than sand with an initial head load of 100 mts. and depositing the earth as shown by the departmental officers in layers of not more than 15cm thick well rammed with surface vibrator, watered and consolidated etc., complete complying with standard specification and as directed by the departmental officers.

Supply, delivery and fixing of pipes for OHT connections including civil works DI PIPE for inlet, outlet, overflow and DI pipe

Labour charges for Painting TWAD Board Emblem in accordance with the size and specifications as approved by the Board on the Service Reservoirs including cost of all consumables, one coat of base paint, scaffolding charges including painting NRDWP Logo on the Service Reservoirs. WD-W0745 TWAD 25-26

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by Departmental officers. Sand, silt or other loose soil, wet sand or silt not under water light black cotton soil, sandy loam and ordinary soil.

Supplying and conveying to site, the following sizes of HDPE pipes of class PN6 &pn10(PE-100) & DI class K7 pipes confirming to IS:4984/1995, as specified in Technical Specifications in standard lengths including labour charges for loading, unloading and stacking at site and transportation charges etc., complete as per standard specifications and as directed by the Engineer in Charge

Lowering HDPE pipes, DI pipes and specials to trench and laying to proper grade and alignment and as directed by the Department Officers

Jointing HDPE, Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by Department Officers

Supply, delivery of HDPE Specials As Per IS 1736-1995 including unloading, transportation and stacking charges. Specials for HDPE pipes as per IS 8360/1977/Part 1(Reaffirmed 1992) Part II and III(Reaffirmed 2002). Reaffirmed to IS 4984-2016 conveyance to work site etc., complete as directed by the Engineer in charge 90 Degree Bends

Supply delivery to site, fixing & Commisioning of kinetic air valve for handling more volumes of air in pumping main, double orifice kinetic air valve confirming to IS 14845 tamper proof design (PN-1) and with 6 years warranty including loading and unloading at site, transporting charges taxes and duties etc., as directed by the engineers of the following sizes. (TWAD SOR 2024-2025, Pg 68)50mm

Refilling the trenches with excavated earth (other than sand) in layers and watering, ramming and consolidation as per standard specification etc complete and as directed by Engineer in charge.

JAYARAJ K (BID ID -1539191)