256-2025-26-GF_OHT

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand,silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth with intial lead and lifts and cleaning and levelling the site etc.,complete Footings - First Depth - 2.00m

Footings - Second Depth - 2.00m to 3.00m depth

Plinth Beams

Supplying and filling in foundation and basement with Crushed Stone Sand (M- Sand) in layers of not more than 15cm thick well rammed watered and compacted etc., complete complying with standard specification.

Plain Cement Concrete 1:4:8 (one part of cement, four part of Crushed Stone Sand (M- Sand) and eight part of coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation - Plain Surfaces Below GL

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. - For plane surfaces such as RCC floor slab, roof slab, beams, lintels, bed blocks, landing slab, waist slab, portico slabs and beams, etc. Plain Surfaces 3.00m to 4.30m

Plain Surfaces at 7.30m to 8.30m

Plain Surfaces at 11.30m to 12.30m

Plain Surfaces at 15.30m to 16.30m

Centering for soffits of RCC slabs of plane surface like lintels, beams ,etc.,including strutting 3m high using mild steel sheets of size 90cm X 60cm X and B.G 10 stiffened with M.S angles of size 25mm X 25mm X 3mm laid over silver Oak (C.W) joists of size 10cm X 6.5cm (spaced at about 90cm c/c )and supported dy casurina props of 10cm to 13cm dia (spaced of 75cm C/C) complying with standard specification and directed - For plane surfaces such as rectangular or square RCC columns, sunshades, top and bottom slab of RCC boxing, etc. Square Column upto 3.30m

Square Column 3.30m to 4.30m

Square Column 4.30m to 5.30m

Square Column 5.30m to 6.30m

Square Column 6.30m to 7.30m

Square Column 7.30m to 8.30m

Square Column 8.30m to 9.30m

Square Column 9.30m to 10.30m

Square Column 10.30m to 11.30m

Square Column 11.30m to 12.30m

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. - For Curved surfaces such as RCC floor slab, roof slab, beams, etc. Curved Surface 12.30m to 13.30m

Curved Surfaces 13.30m to 14.30

Curved Surfaces 14.30m to 15.30

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 cement contenet of 350Kg/ cum and maximum water cement ratio of 0.45 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 requirements of IS standards. For 1.5m Below G.L

For 4.5m Above G.L

For 4.51m to 7.32m Above G.L

For 7.32m to 10.98m Above G.L

For 10.98m to 14.64m from G.L

For 14.64m to 18.30m from G.L

Supply and fabrication of steel required for all RCC items of works involved in the schedule, cost of steel at site fabrication, labour charges for cleaning the rods straightening, cutting, bending, tying grills, including overlapping to the required length whenever necessary and placing the reinforcement in position as as per design given and specified in the drawings, including cost of binding wire, provision of spacer bars, cover blocks and all other incidental charges etc complete as per standard specification

Painting two coats of newly plastered wall surface with approved Emulsion paint over cement plastered wall surface, ceiling and including preparing the surface, clean removal of dirt and including necessary plaster of paris putty wherever required and cost of painting materials, brushes, preparation of surfaces and scaffolding charges etc., complete complying with standard specification and as directed by the departmental officer

Supplying and fixing in position C.I.Manhole covers (light or heavy duty) of 600mm X 600mm sizes of best approved quality and as per standard specifications etc.,complete.

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.

Fabrication,supply, delivery and fixing of outside M.S. Ladder of 45cm clear wide made out of 50mm x 50 mm x 6mm M.S. angle for sides and steps in 16mm MS plain rods fixed at 30 cm C/C welded jointed etc., providing with suitable side supports, clamps and locking arrangements provided with two coats of approved enamel paint over one coat of redoxide paint, for providing access to roof top of OHT of suitable inclined length, including bottom anchorage and transportation and as directed by TWAD Board Officers. The rate inludes concrete bed block in CC 1:2:4 using 20mm HBGS at top and bottom of suitable size with necessary anchor bolts.

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

Providing and fixing of M20 Grade Concrete Mix as per the standard specifications for ventilators of approved pattern including cost of cement, reinforcement, centering, shuttering, strutting etc., complete as generally shown in plan and as directed.

Providing Cut stone set in CM 1:3 (one cement and three sand) using well dressed cut stone supporting inlet pipe of size 0.30 x 0.30 x 0.15m for service reservoir etc., complete as per standard specifications and as directed by Engineer-in-charge. As per PWD SOR 2024-25, Page No. 17 M-0048

Providing and fixing in position of PVC water bar 150mm wide with single bulb for horizontal joints necessary holders fabrication, the rate inclusive of cost of water bar, holders fabrication and fixing in position etc complete as per standard specification and as directed by the Engineer. As per PWD SOR 2024-25, Pg.72 M-0282

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 Ø GI pipes

50mm Ø GI pipes for scour pipe 1xl

65mm Ø GI Tee

65mm Ø GI 90 Bend

65mm Ø GI coupler

65mm Ø GI union

65mm Ø GI Elbow

65x50mm Ø GI Reducer - Medium

65mm Ø GM Gate valve

50mm Ø GM gate valve

Supply and Fixing of 90mm HDPE pipes including all labour charges etc complete PN6

100mm Gate Valve

80mm NRV