Strengthening of Bhonra (Bhonra) Water Supply Scheme in Okhalkanda, Nainital

Amount

Construction of Spring Collecting Chamber with Wing walls

Protection Work (construction of retaining wall and pillars)

Excavation in ordinary soil (loam, clay, sand) for pipe line trenches including lift up to 1.5M and lead up to 30M with back filling, watering, ramming of excavated earth in the trenches. (25% of the total road)

Excavation in soil mixed with single bouldres etc. requireing the use of specials T&P, if any, for pipe line trenches including lift up to 1.5M and lead up to 30M with back filling, watering, ramming of excavated earth in the trenches. (75% of the total)

Constructing masonry Chamber 60x60x75 cm inside, in brick workin cement mortar 1:4 (1 cement : 4 coarse sand) for sluice valve, with C.I. surface box 100mm top diameter, 160 mm bottom diameter and 180 mm deep ( inside) with chained lid and RCC top slab 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size ) , i/c necessary excavation, foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design : With common burnt clay F.P.S.(non modular) bricks of class designation 7.5

Providing breaking pressure tank (BPT) to minimise the pressure in the rising main

Supply of all materials, labour, T&P etc and construction of R.C.C. CWR of following capacities ( in kiloliters ) with M.S. ladder outside & inside of the tank, M.S. M.H. cover with locking arrangement, supply and fixiing of outlet, inlet, over flow and wash out pipes with necessary sluice valves, pipe pieces (including cost of materials) flooring 0.60 M wide apron, painting on tank body vertical pipes, ladder, M.S. M.H. cover etc. complete with approved water proofing (apex) / enamal paint, testing, filling water for testing purpose etc. including supply of vertical pipes and specials, assuming bearing capacity as 8MT/M2.

Proposed 10 KL CWR with Supply and fixing of Bucket type chlorinator of 12.5 Liter capacity at top of all service raservoirs and protection work i.e. RR 1:6 of 2.13cum etc.

Proposed 15 KL CWR with Supply and fixing of Bucket type chlorinator of 12.5 Liter capacity at top of all service raservoirs and protection work i.e. RR 1:6 of 2.13cum etc.

Dismantling of flexible pavements and disposal ofdismantled materialsupto alead of 100 m, stacking serviceable and unserviceable materials separately as per Technical Specification Clause 202 (10% of Total Road)

Dismantling of cement concrete pavements by mechanical means using pneumatic tools breaking to pieces not exceeding 0.02 Cum in volume and stock piling at designated locations and disposal of dismantled materials upto a lead of 1000 m, stacking serviceable and unserviceable materials separately (20% of the total Road)

Construction of Un-reinforced, Cement concrete pavement, thickness as per design, over a prepeared sub base with 43 grade cement or any other type PCC Grade M-30, coarse and fine aggregates conforming to IS: 383,maximum size ofcoarse aggregate notexceeding 25 mm,mixed in a concrete mixer of not less then 0.2 cum capacity and appropriate weigh batcher using approved mix design, laid in approved fixed side formwork (Steel channel, laying and fixing of wedges, steel plates including levelling the formwork and laying and fixing of 125 micron thick polythene film, as per drawing), spreading the concrete with shovels, rakes, compacted using needle, and plate vibrators, finished in continuous operation and curing of concrete slabs for 14 days, using curing compound where specified and water finishing to lines and grade as per drawings and technical specifications. (20% of the total road)

Providing of all materials, Carting from site store of work , Laying and Jointing of G.I Pipes confirming to IS: 1239 (PART-1) including supply of all jointing materials like specials white lead,hemp and oil etc in trenches with its cutting, threading and testing of pipe line etc complete. G.I. PIPE CONFORMING TO IS : 1239 (PART-1) -2004 Medium Duty (Class 'B')

15 mm dia GI Pipe

25 mm dia GI Pipe

40 mm dia GI Pipe

50 mm dia GI Pipe

Providing and fixing Woltman type Bulk water meter inline type, flenge end with integral mounted display and all necessary fittings etc complete At Distribution For DMA 50 mm dia nominal bore

Supply of all labour, material required for restoring of existing house connection which might be damage during excavation and also shifting all existing connection to new water supply system from existing water supply system complete as per unit estimate and directed by Engineer in-charge. 15 mm size water connections.

Providing and making New house service connections from water supply distribution GI pipe line upto water meter chamber inside the property using GI pipe including supply and fixing of electrofussion saddle ,brass ferrules elbow, ball valve etc complete with earthwork, road cutting with restoration works