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| 1 | 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, Sand, silt or other loose soil, wet sand or silt not under water light black cotton soil, sandy loam and ordinary soil.SS20Bas directed by Departmental officers. TWAD 2022-23 |
| 2 | Supply and Delivery of MS specials with inside lining/epoxy coating as per IS 13620 -1993 and outside coating with cement mortar 20mm thick as per IS 1916-1989 and IS 7322-1985. |
| 3 | Removal of old damaged joint items Upto 700mm diaPSC Pipes(446.20x60%) including all labour chargesetc., complete. |
| 4 | Supply and delivery of the following pipes main leakage Jointing materials including cost and conveyance charges to site , etc complete as per standard specification. |
| 5 | Spunyarn |
| 6 | Lead wool. |
| 7 | Bostik Plug leak (Fast Setting Water Plug) |
| 8 | Hardcrete ( Concrete Hardening & Water Proofing liquid) |
| 9 | 16 mm dia x 65 to 90 mm length fully threaded bolts and nuts with 2 Nos. |
| 10 | Oil |
| 11 | 3 Ply R.I. Rubber insertion Sheet |
| 12 | Cement 33/43/53 grade OBC |
| 13 | Quick setting cement |
| 14 | Supply delivery and fixing of Chicken mesh (ferrocement) including cost of conveyance and labour charges etc complete., |
| 15 | Jointing the PSC pipes upto 700 mm dia PSC pipes with cement joint work, and jointing materials etc., complete as per standard specification. |
| 16 | Lowering of 700 mm dia PSC/ BWSC pipes and specials into the trench and laying to proper grade and alignment and Jointing with rubber gaskets etc complete., |
| 17 | Labour Charges For Cutting open BT Road for laying water mains including all charges etc and complete as per standard specification, and as directed by departmental officers. TWAD 2021-22 |
| 18 | Supplying, erecting steel centering for sides and soffits including necessary supports and shuttering to the required height for RCC items using MS sheets or suitable size of BG 10 stiffened with welded MS angles of size 25mmx25mmx3mm of boarding, laid over silver oak joists of size 10cmx6.5cm spaced at 90cm c/c and supported by casurina props of 10cm to 13cm dia. Spaced at 75cm c/c complying with standard specification. |
| 19 | Plain cement concrete in 1:2:4 mix (one cement, two sand and four aggregate) using 20mm ISS hard broken granite from approved quarry including cost, conveyance of all to site, mixing, laying and curing charges etc., complete. |
| 20 | Refilling the excavated earth into the pipe trenches including cost of labour charges etc, complete. |
| 21 | Removing the burst 700mm dia MS pipe (1no) from the trench at a depth of 2m to 4m by breaking the pipe by using hammer and wire cutters etc. and carefully disjointing the socket and sipgot ends from the exising pipe without damaging ends of the sound pipes and removing the same from the trench away from the work site during add hours between 8 Pm to 8 Am ofthe next day as a emergency nature of work to resume water supply with all equipments and incidental charges etc. complete as directed by the TWAD Board Officers. (Approved by Superintending Engineer, TWAD Board, Salem - Namakkal Circle, Salem -7 ) Letter no> F.R A ( CWSS to Irupalli) / AE (M) SNC /SLM/2015-2/dt 15.06.2015. |
| 22 | Dismantling, clearing away Plain cement concrete etc., complete as per standard specification.(PWD 2021-22 |
| 23 | Dismantlling of Reinforcement cement Concrete carefully etc complete.PWD 2021-22 |
| 24 | Supplying and conveying to site, the following sizes of DI 300mm Dia Double Flanged PN10 Pipes confirming to IS:8329-2000 as specified in Technical specifications in standard lengths including labour charges for loading, unloading and stacking at site etc. complete as per standard specifications and as directed by the Departmental Engineer.( 5m Length Pipe) TWAD SOR 2021-22 |
| 25 | Supply, delivery of DI D/F / D/S pipes and specials of various length both standard and non-standard as per IS specification No. 9523 / 2000including cost of loading, frieght, unloading and stacking etc. complete. TWAD 2020-2021, P-37 |
| 26 | DI 300mm f Push on flange socket PN 16 |
| 27 | DI 300mm f Double flange Duck foot 90° Bend PN 10 |
| 28 | Dewatering using 3hp diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete. TWAD 2020-2021 |
| 29 | Lowering of 300mm dia D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. TWAD P-230 |
| 30 | Charges for attending leakages in MS pipe line jointing along with alignment of work site welding joints properly root one run and MS plate but welding to withstand the required pressure head to suit the existing alignment and grade welding integrated and labour cost of welding rod,tools with consumables and anti rust corrosive black paint two coat etc., complete as directed by the departmental officer. |
| 31 | Charges for Providing 400mm dia PSC Pipe to 300 mm dia DI Pipes and specials with cement joint collar into trenchetc., complete as directed by the departmental officer. |
| 32 | Loweringof 700 mm dia MS pipes and specials into the trench and laying to proper grade and alignment and Jointing with rubber gaskets etc complete., |
| 33 | Charges for Providing 711X6.3MMdia MS Pipeand specials with cement joint collar into trenchetc., complete as directed by the departmental officer. |
| 34 | Hire charges for portable Genset 1.00 KVA with 2 Nos. Of 150W flood light including all incidental charges, transportation, crew charges and fuel charges etc., complete.Lighting arrangements (maintenance works) |
| 35 | GST 18% |
