15th Finance - 2025-2026 - Tied work - Water Supply

Amount

Construction of RCC spiral staircase in RCC 1:1:5:3 (One cement 5 sand and 3 coase Aggregates) using 20mm HBGS of 1.80m diameter of required height for approach to the roof of service Reservior with RCC Handrails including earthwork excavation providing CC 1:4:8 mix RCC footting 1:1:5:3 mix GL platform etc., and also including cost of steel reinforcement fabrication charges scaffolding centering precasting charges etc., complete as per standard specification and as directed by Departmental Officers. The staircase shall be braced to the column of service reservior 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.

Providing two legged scaffolding using 15cm dia casurina post of 4.00m over all length 3.00m height + 0.5m projection the distance between the two rows being 1.25M and the spacing of posts being 2.00m in both the rows with two horizontal posts with 0.5m . Overlap on either side and braces at 2.00m centre to centre including longitudinal and transverse middle braces to step and provinding a platform with country wood planks of 40mm thick and 1.00m width etc, in a complete from using coir and nails 1.00m run. including cost and conveyance of all material and all labour charges and all other incidental charges etc. completed as per standard specification and as directed by the departmental officers.TNBP No.30 for 10.50m height

Supplying and erecting centering to sides and soffits including supports and strutting with necessary cross bracing for plain surface such as RCC slabs rectangular beams all beams lintels etc., centering for soffits upto 3 meter height using mild steel sheet of size 90 cm x 60 cm x 10 mm gauge with MS angles of size 25mm x 25mm x 3mm laid over silver oak (CW) joists of size 10cm x 6cm spaced upto 90cm c/c and casurina props or 10 cm to 13 cm dia spaced at 0.750 cm c/c complying with standard specifications as per TNDSS NO : 30 & 86.

Square column

0 to 3.30m height

3.30m to 4.30m height

4.30m to 5.30m height

Plain surface

0 to 3.30m height

Reinforced cement concrete 1:11/2:3 (one cement one and half Crushed Stone Sand and three aggregate) using 20mm size I.S.S. metal including cost conveyance of materials to site and all labour charges etc., mixing laying consolidating curring etc., but excluding cost of steel etc., complete as per standard specification as per TNDSS NO: 30 V,VI (S3) VII-3

Supplying, fabricating and placing in position of mild steel or TMT rods, including cost of steel and binding wire and all labour charges for cutting, bending, tying and placing in position etc, complete as per SS. TNDSS NO: 97 V,VI (S6) VII (S6) VII-3

Plain cement concrete Using 1:4:8 mix (One cement , four Crushed Stone Sand and Eight aggregates) using 40 mm ISS HBG metal including cost and conveyance of all materials to work site and all labour charges for mixing, laying,consolidating and curing etc complete as per the standard specifications. TNDSS NO: 28 V, VI (S2) V,VI (S5A) VII

Supply casting and fixing in position of RCC handrail of height 0.05m thick at top of the OHT and also jointing the handrail with RCC post of size 0.15m dia and 1.00m height including cost of all materials and all labour charges etc. complete

Painting two coats with ready mixed Emulsion Paint of'approved quality and colour over a priming coat, including thorough scraping, clean removal of dirt, etc complete and including necessary plaster of paris, putty, wherever required including cost and conveyance of all materials etc.and all lobour charges etc.complete as per Standard specification and as directed by the departmental officers.

S.P.SUTHA (BID ID -1476133)