REPAIR/CLEANING OF SEWAGE LINE, MANHONE, SEPTIC TANKS AND SOAKPITS AT LEBONG UNDER AGE (I) DARJEELING

Amount

Demolition of reinforced cement concrete of any description and in any position not otherwise specificied provided for, complete all as per specified and as directed by Engineer-in-charge.

M&L for precast cement concrete (1:2:4) type B1 (using 20 mm graded crushed stone aggregate) as in landings, cover slabs (for manholes etc.) shelves and similar articles with plain faces set in cement mortar 1:4 complete all as specified and as directed by Engineer-in-charge.

M&L for mild steel TMT bars 10 mm dia. and over cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with mild steel wire (annealed) not less than 0.9 mm dia., or securing with clips, complete all as per specified and as directed by Engineer-in-charge.

Demolition and breaking up including removing salt glazed stoneware pipe 150mm bore (internal) with concrete bedding and haunching complete including necessary earth work as required complete all as specified and as directed by Engineer-in-charge.

M&L for 150mm dia (internal) salt glazed stone ware drain pipes (Grade A) ISI Marked as in sewage lines laid in trenches and jointed complete all as specified and as directed by Engineer-in-charge.

M&L for concrete bed to 150mm dia SWG/RCC drain pipe including packing under & haunching against the sides of pipes with concrete after they are laid & tested in PCC (1:4:8) type D2 (using 40 mm graded crushed stone aggregate) complete all as specified and as directed by Engineer-in-charge.

Demolition and breaking up including removing salt glazed stoneware pipe 100 mm bore (internal) with concrete bedding and haunching complete including necessary earth work as required complete all as specified and as directed by Engineer-in-charge.

M&L for 100 mm dia (internal) salt glazed stone ware drain pipes (Grade A) ISI Marked as in sewage lines laid in trenches and jointed complete all as specified and as directed by Engineer-in-charge.

M&L for concrete bed to 100 mm dia SWG/RCC drain pipe including packing under & haunching against the sides of pipes with concrete after they are laid & tested in PCC (1:4:8) type D2 (using 40 mm graded crushed stone aggregate) complete all as specified and as directed by Engineer-in-charge.

Dismantling of cast iron pipe jointed in cement mortar and taking out of trenches 100mm bore (Excavation to be measured and paid separately) complete all as specified and as directed by Engineer-in-charge.

S&F 100mm bore sand cast iron soil, waste and vent pipes in any length with or without ears with cement joints laid in trenches complete all as specified and as directed by Engineer-in-charge.

All as per serial item No. 11 above but pipe is fixed on wall.

Demolition of brick work, built in any cement mortar including all quoins, arches, pillars, etc. complete all as per specified and as directed by Engineer-in-charge.

M&L for brick work with flyash bricks, straight or curved on plan exc 6m mean radius, built in cement mortar 1:6 complete all as per specified and as directed by Engineer-in-charge.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5 m in depth for foundation etc or for shafts, wells, cesspits, manholes, pier holes etc n.exc 10 sqm on plan and n.exc 1.5m in depth and getting out in soft/loose soil complete all as per specified and as directed by Engineer-in-charge.

Returning, filling in, including spreading, leveling, watering and well ramming in layers n exc 25cm complete all as per specified and as directed by Engineer-in-charge.

Removing excavated material not exc. 50 m & depositing where directed at a level not exc. 1.5 m above starting point complete all as per specified and as directed by Engineer-in-charge.

S&F 100mm bore CI bend (any radius) with oval access door complete all as specified and as directed by Engineer-in-charge.

S&F in repair cast iron cowls 100mm bore complete all as specified and as directed by Engineer-in-charge.

S&F in repair CI floor trap 100mm dia with grating including jointing to waste pipe in cement concrete 1:2:4 type B-1 complete all as specified and as directed by Engineer-in-charge.

M&L for cleaning blocked drain pipes (SGSW/hume pipe) up to 100mm bore by rodding from manholes and well flusing with water after cleaning the same all as directed and including disposing off the deposited sludge , etc inside pipes to a distance n.exc 200m, burried under ground (minimum 30cm below ground level) including necessary excavation of pits in soft/loose soil and returning, filling in including sprinkling of bleaching powder at the rate of 0.20 kg/Sqm and dressing of surplus soil around slope complete all as specified and as directed by Engineer-in-Charge.

All as per serial item No. 21 above but for 150mm bore pipes.

M&L for cleaning existing Gulley traps manholes septic tanks etc. including dewatering and taking out sludge and solid deposits from the gulley trap septic tank and manhole etc completely and burying the sludges and solid deposit in a newly dug pit and covering the sludge and solid deposit etc. with earth and spreading 2 cm thick lime with bleaching powder on top surface to prevent spreading of foul smell. After takingn out sludge and solid deposits, the inside of the gully trap septic tank manholes etc., shall be cleaned with water complete all as specified and as directed by Engineer-in-charge. Note - 1. Payment shall be made based on volume of sludge and solid deposits taken out. 2. Dewatering and taking out sludge etc., shall be done by using mechanical browser as far as possible and rest by manually and placing the cover slabs in original possible. 3. The sudge mixed with water shall be poured into excavated earth pits and sufficient time shall be allowed to settle and dry up.

Labour only for taking out unserviceable brick bats from soakage well including balling out water and sludge and cleaning the soak well completely to a distance n.exc 100m from the starting point as directed by Engr-in-charge and deposited in low land area and covering the same with layer of earth (60CM) over the same (Unit rate quoted for same shall be inclusive of labour charge for excavating pit and Bleaching powder laying etc.) complete all as per specified and as directed by Engineer-in-charge.

M&L for loose filling with broken bats of gauge 40mm to 80mm soakage well complete all as per specified and as directed by Engineer-in-charge.

S&F in repairs, vitreous China squatting pan, 'Orissa' pattern, size 580mm x 440 mm, white with integral foot rest and 'P' or 'S' trap, including provision of lime concrete bedding, connection to trap and flushing pipe etc complete including making good to disturbed surfaces of floor to match with existing specifications complete all as specified and as directed by Engineer-in-charge.

S&F in repair PVC 10 ltr capacity low level flushing cistern white with inlet ball valve float and braket and 32 mm bore PVC flush pipe, complete all as per specified and as directed by Engineer-in-charge.

S&F in repairs vitreous China wash down water closet pan (pedestal pattern) with seat cover white with 'P' or 'S' trap, including and flushing pipe etc complete including making good to disturbed surfaces of floor by filling with PCC 1:4:8 type D-2 to match with existing specifications as specified (excluding fixing bolts, flushing cistern and flush pipe) complete all as specified and as directed by Engineer-in-charge.

S&F in repair plastic water closet seat cover, any colour to match the EWC, closed pattern with flat bottom, and cover and mild steel chromium plated or aluminised hinging device complete all as per specified and as directed by Engineer-in-charge.

S&F in repair PVC connection 15mm dia size with PTMT nuts of length 450mm, complete all as specified and as directed by Engineer-in-charge.

S&F in repairs stop valves concealed type 15mm dia cast copper alloy screwed down high pressure with crutch of butterfly handle screwed both ends for iron pipe or for unions and fixed complete all as specified and as directed by Engineer-in-charge.

S&F in repair Vitreous china urinal, bowl type flat back of size 465 x 355 x 265 mm white (minimum), with grating and union for discharge pipe complete including providing and fixing plugs, bedding urinal against wall in cement mortar 1:2, securing urinal to plugs with and including 60 mm long brass screws complete all as per specified and as directed by Engineer-in-charge.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to stone and rubbish off the permises complete all as per specified and as directed by Engineer-in-charge.

S&F chequered cement concrete coloured tiles 20cm x 20cm x 25 mm thick set, jointed and pointed in neat cement slurry with grey cement and no pigment cement including 15 mm thick screed bed in cement mortar 1:6, complete all as per specified and as directed by Engineer-in-charge.

M&L for 15 mm thick screed bed or bedding layer of cement mortar (1:6) for laying floor finishes, complete all as specified and as directed by Engineer-in-charge.

M&L for walling of stone masonry random rubble, uncoursed well bonded, bedded and solidly hearted built in CM 1:6 complete all as specified and as directed by Engineer-in-charge.

All as per serial item No. 36 above but except stone.

Demolition of unreinforced cement concrete in ground floors and pavings nexc 15 cm thickness (below or above ground level) complete all as specified and as directed by Engineer-in-charge.

M&L for PCC (1:4:8) type D2 ( using 40mm graded crushed stone aggregate) as in foundation, filling and mass concrete complete all as per specified and as directed by Engineer-in-charge.

M&L 75 mm thick Cement concrete type C2, 1:3:6 (using 40 mm graded stone aggregate) in flooring/ hard standing/pavings/plinth protections, finished even and smooth without using extra cement complete all as per specified and as directed by Engineer-in-charge.

Demolition of cement concrete (unreinforced) of any description and in any position and removing debris from the site, complete all as specified and as directed by Engineer-in-charge.

M&L for PCC type B-l, 1:2:4 (20 mm graded aggregate) as in cills and other similar bands, coping, bed plates and like including weathering, slightly rounded or chamfered and throating complete all as specified and as directed by Engineer-in-charge.

M&L cement concrete type C-2, 1:3:6 (using 40 mm graded stone aggregate) as in surface channels and drains, complete all as specified and as directed by Engineer-in-charge.

Extra for forming fair finished drain or channel 30 cm inner girth in cement concrete, using extra cement, including forms, moulds, mitred/stopped ends complete all as specified and as directed by Engineer-in-charge.

M&L for Brickwork with flyash bricks in half brick thick honey comb walling, built in CM 1:6 complete all as specified and as directed by Engineer-in-charge.

Taking down cement plaster plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc complete all as per specified and as directed by Engineer-in-charge.

M&L 15mm thick rendering in CM (1:6) on fair faces of brick work or concrete surfaces and finished the surface even & smooth without using extra cement complete all as per specified and as directed by Engineer-in-charge.

M&L for 15 mm thick rendering on fair faces of brick work or one side of lathing in cement mortar (1:4) and surface finished even and smooth without using extra cement complete all as specified and as directed by Engineer-in-charge. Note:- The contract sum shall be calculated by deducting the amount shown in Credit Schedule attached to this tender, from total amount of Schedule 'A'/BOQ.

HIRA SINGH (BID ID -3339788)

TSHERING WANGYAL BHUTIA (BID ID -3338473)

RAI CONSTRUCTION (BID ID -3340696)

BIMAL BHATTRAI (BID ID -3339607)