O and M Infrastructure scheme 2025-2026

Amount

Earth Work Excavation for foundation in all types of soils and sub soils to full depth (such as Soils in Rock / Silt / Light Black Cotton Soil / Ordinary Soil ) except in rock requiring blasting but inclusive of shoring, shuttering and bailing out water wherever necessary and refilling the sides of foundation with excavated earth other than sand in layers of 150 mm thick well rammed and consolidated, depositing the surplus earth in places shown by the Departmental Officers with initial lead of 10 m and initial lift of 2 m. Complete as per TNDSS 23 & 24, V, VI (S2), VII, 9,10

First depth of 0 to 2m

II depth 2m to 3m

Plain Cement Concrete of mix 1 : 4 : 8 (One pat of Cement four part of sand eightpart of aggregates) using 40mm gauge hard broken including cost conveyance of all materials to site including formwork and centering labour charges, transporting and placing in position including shoring, strutting, forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification. TNDSS NO: 28 V, VI (S2) V,VI (S5A) VII

Providing and laying in position Standardised Concrete Mix M-25 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 cement contenet of 350Kg/ cum and maximum water cement ratio of 0.55 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone sand (M- Sand) but 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 without claiming extra cost 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 requiremnents of IS standards.

Column footing below 1.50m

Column upto Plith or Tie Beam

Column 0.00 mt to Tie beam + 4.00 mt level

Column above 4.00m to Tie beam +8.00 mt level

Column above 8.00m to Tie beam +12.00 mt level

Column above 12.00m level to below the slab bottom

Reinforced Cement concrete M30 gradedesign mix for the follwing items. The rate excluding cost of TMT rod, centering , struuting but including cost of mixing placing the concrete in postion vibrating cosolidating finishing and curing the concrete etc complete complying the standard specifications.for Bottom slab, Side wall and Cover Slab

Supplying and errecting centering to sides and soffits including supports and strutting for drainage sides and culvert body wall sides using 90cm x 60cm and B.G 10 stifened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding laid over( silver oak joists ) of size 10cm x 6.50cm spread at about 90cm including all labour charges and cost and conveyance of all materials to site etc. complete complying with standard specification. TNDSS NO: 30&86

Below ground Level

60000 lit OHT

RCC Tie Beam at 0.00 level

For Square Column above 0.000m to 4.0 ht from GL

RCC Tie Beam at 4.00M level

Square Column above 4.00m to 5.00M level ht from GL

Column above 5.00m to 6.00M

Column above 6.00m to7M

Column above 7.00m to 8M

RCC Tie Beam at 8.00m level

Square Column above 8.00m to 9 MT

Column above 9.00m to 10 MT

Column above 10.00m to 11 MT

Column above 11.00m to 12MT

RCC Tie Beam at 12.00 level

Square Column above 12.00m to13MT

Column above 13.00m to14 MT

Column above 14 00m to15 MT

Column above 15 00m to15.20 MT

Top haunch

OHT above 15.13 MT

Roof Cover Slab

Supplying fabricating and placing in position of steel rods using TMT Steel rod including cost of binding wire, cost of labour charges for fabrication and placing in position etc. Complete. Complying with std. specifications. TNDSS NO: 86

Supplying and Painting the walls with Two Coats Weather sealed Exterior emulsion Paint as instructed by the departmrntal officers including Preparation of surface curing, etc complete in all floorscomplying with standard specification. ( The Colour and shade of the paint shall be got approved by the departmental 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 detailed below.

65mm Φ GI pipes for inlet connection

65mm Φ GI pipes for Over Flow and Rain Water Harvesting Pipe

65mm Φ GI pipes for Scour Pipe

65mm Φ GI pipes for Delivery pipe

90mm Φ PVC Threaded Coupler

65mm Φ GI PVC Threaded Coupler

65mm Φ GI Tee

65mm Φ GI 90°Bend

65mm Φ GI Coupler

65mm Φ GI Union

65mm Φ GI Elbow

65 x 50mm Φ GI Reducer

75 x 63mm PVC Reducer

75mm PVC Threaded Coupler

75 x 90mm PVC Reducer

75 x 63mm PVC Reducer

65mm Φ GM Gate Valve

50mm Φ GM Gate Valve

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 mixfor 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. (60000 Litres OHT)

Supply , delivery and fixing in position of CI man hole cover and frame of size 75x75 cm on roof slab and as directed by the Departmental Officers, The manhole frame and cover should be of light duty and conforming to IS 1726/1974

Providing Reinforced cement concrete 1:1:5:3 ( one part of cement :one point five part of sand: Three paart of Coarse Aggregate) using 20 mm HBGS for RCC Handrails of 0.75 m height over the top of roof slab of approved pattern and design including the cost of reinforcement, centering, precasting, finishing

Supply , delivery and fixing position of 110 mm dia, pvc ventilators on the roof slab and as directed by the Officers

Refilling the foundation for service reservior with excavated earth (over than sand ) in layers of 15 cm thick well rammed, watering and consolidating etc., complete complying with standard specification as directed Officers

RCC 1:1:5:3 (One Part of cement one and halfpart of sand and three part of 20mm size HBG stone) for the RCC inside ladder for 60000 and Sumplitres OHT including the cost of reinforcement fabricating centering and shuttering,cost of mixing placing of concrete vibrating curing, finishing etc., complete

Earth work excavation and depositing on bank with initiallead of 10 m and lift of 2 M in narrow trenches for layingof pipes for water supply and sewerage works in thefollowing type of soils as directed by Departmentalofficers such as Hard stiff clay, stiff black cotton, hard red earth, shales,murram gravel, stoney earth and earth mixed with smallsize boulders and hard gravelly soil.One cubicmetre

Supplying and Delivery of 90 mm dia HDPE Pipee fe as directed by the depatmental officers

110 mm HDPE PIPE

Lowering the 80 mm dia PVC pipes and specials in the trenches and laying to proper grade and alignment and as directed by the departmental Officers.

Supplying of 80 MM CI D/F Sluice valve with Cap/ Wheel as per IS 14846 / 2000 PN 1.0 with ISI mark including Excise duty and vat

Supplying of 80 mm dia KINETIC AIR VALVES FOR HANDLING MORE VOLUMES OF AIR IN PUMPING MAIN, DOUBLE ORIFICE KINETIC AIRVALVE CONFIRMING TO IS4845 TAMPER PROOF DESIGN (PN-1)

Supplying and Fixing of of Water Type 80 MM Non return Valve( Dual Plate Check Valve ) CI single door Conforming to IS

SUPPLY AND DELIVERY OF 80MM DI D/F GATE VALVES (SOFT SEATED) RESILIENT SEATED SOFT SEALING GATE VALVES (SLUICE VALVES) WITH BODY BONNET OF DUCTILE CAST IRON OF GRADE GGG40, WEDGE FULLY RU BBER LINED WITH EPDM, REPLACEABLE SPINDLE NUT, WITHOUT GLAND PACKING AND WITH 3 O-RING PROTECTION ON THE SHAFT AND SEALS OF NBR AND THE VALVES SHOULD BE OF VACLUM TIGHT AND 100% LEAK PROOF WITH FACE TO FACE DIMENTIONS AS EPR BS5163-89/ ISI 4846-2000/ DIN 3202 F 4. ALL THE VALVES SHOULD BE WITH ELECTROSTATIC POWDER COATING BOTH INSIDE AND OUTSIDE WITH POCKET LESS STRAIGHT THRO' BODY PASSAGE. ALL THE VALVES ARE TO BE COMPATIBLE FOR BURRIED APPLICATION WITH PRESSURE RATING PN 10/16

Removing the burst P.V.C./ HDPE Pipes from the pipe line and removal of slushy soil and baling out water and replacing the pipe line with sound pipe including jointing and cost of refilling the pipe line with water for retesting the pipe line etc., complete (excluding cost of sound pipe and jointing materials and earth work) and as directed by the TWAD Board Officers

M/s.S.K.Constructions (BID ID -1357835)