Department Of Agriculture Tender

Costruction of Piped Water Supply Scheme At. GOVERNMENT Hi-tech NURSERY,KALAMBU,TAL.SHAHADA,DIST.NANDURBAR

Item No. 1 :- Designing (aesthetically) and constructing RCC elevated service reservoirs of following capacity with RCC staging consisting of columns, internal and external bracings spaced vertically not more than 4.5M. Centre to centre for ESR having capacity upto 500cum and not more than 6 m. c/c for ESRs having capacity above 500 cum including excavation in all types of strata, foundation concrete, cement plaster with water proofing compound to the inside face of the container including refilling disposing of the surplus stuff within a lead of 50 M. all labour and material charges including lowering, laying, erecting,, hoisting and jointing of pipe assembly of inlet, outlet, washout, overflow and bypass arrangements as per departmental desing, providing and fixing accessories such as M.S. ladder, C.I. manhole frame and covers water level indicatiors, lightening conductor, G.I. pipe railing around walk way and top slab, providing spiral stairecase from ground level to roof level & stainless steel ladder in container, MS grill gate of 2 M. height with locking arrangement of approved design BB masonary chambers for all valves, ventilating shafts, providing and applying three coats of Acrylic emulsion with silicon additives paint to the structure including roof slab epoxy painting to internal surface & antitermite treatment for underground parts of the structure and giving satisfactory water tightness test as per IS code the job to include painting the name of the scheme and other details on the reservoir as per the directions of Engineer-in-charge 1) The design of the structure shall be in accordance with relevant (IS 456-1987,IS 875-1987, IS 3370 - 1965or revised) 2) The design shall satisfy the stipulations as per IS 1983- 1984 and IS 13920 / 1993 for seismic force and IS 11682/1985 for RCC staging of overhead tanks. 3)For design having more than 6 columns, provision of internal bracing is obligatory. External bracing is also obligatary. 4) The entire structure shall be in M-250 mix only.However concrete in contact with water such as container , base slab , wall ,roof slab & footing in water born area shall be in M-300. 5) Plain round mild steel bars grade I confirming to IS 432 part -I or high yield strength deformed bars confirming to IS 1786 or IS 1139 shall be used, grade II mild steel bars will not be allowed 6) Irrespective of the type of foundation proposed in the design one set of bracing be provided at the ground level. 7) These rates include providing M.S.ladder for ESR's upto 2 lakh liters capacity and providing spiral staircase for ESR above 2 lakh lit. capacity. 8) Staging height will have to be designed with stresses of M-200 concrete.However all RCC construction should be done in m 250 except concrete in contact with water shall be designed & constructed in M300. 9) These rates are including the cost of uplift pressure if any and entire dewatering during execution. In case of water logging area where water is struch at shallow depth extra provision of dewatering shall be made as per site condition. 10) All conditions given in the Member Secretary's Circular No.MJP/TS-1/350/1668 Dt.2.8.97 and MJP/S-1/350/2127 Dt.13.7.99 shall be strictly followed and additional cost if any, due to these conditions is included in the rates mentioned below. 11) 75% part rate shall be payable for reinforcement cocrete and plastering items of containers of ESR till satisfactory hydraulic testing for water tightness in given and till that work shall be treated as incomplete. 12) The rates as indicated in the table are excluding the cost of pipes, specials, valves required for inlet, outlet, washout, overflow and bypass arrangements. The scope of the pipe assembly work shall be upto 5 M. beyond outside face of the outremost column. 13) For ESR upto 500 cum capacity CIDF pipes upto 300 mm dia shall be provided and specials should be used. For ESR above 500 cum, M.S. pipes and M.S. specials (minimum 8mm thick uo to 500mm dia. & 10 mm thickness above 500 mm dia.) shall be used with proper anticorrosive epoxy treatment from inside and outside 14) Below mentioned rates are for foundations with individual footing with bearing capacity of 20 tonnes per sqm. For raft foundations, these rates shall be increased by 7.5% where safe bearing capacity (SBC) is 5 MT per sqm and by 5% where SBC is more than 5 MT / sqm and upto 10 MT/sqm. This % of 5% or 7.5% is applicable for estimation of amount of LS item of ESR. For Extra Item due to change from individual foundation to raft actual increase in concrete and steel be paid as per relevent DSR Item.

Inlet Pipe