REPAIR TO EXTERNAL SERVICES (AREA DRAINAGE, SEWAGE LINE, SEPTIC TANKS, FENCING, SOAKAGE PIT AND FOOTPATH) AT COOCH BEHAR UNDER GE (SOUTH) BINNAGURI

Amount

Excavation in trenches n.exc 1.50m wide and n.exc 1.50 m in depth for foundation or for laying of sewage line etc and getting out in soft/loose soil complete all as specified and as directed

All as per item No 1 here-in-before but exc 1.50 and n.exc 3.00m in depth.

Dismantling and breaking up 100/150 mm drain pipe (salt glazed stone ware or reinforced concrete) set in cement mortar alongwith concrete bed of drain pipes as in damaged portion of sewage line and work in foul position complete all as specified and as directed.

All as per item No-3 here-in-before but 200mm dia

M&L for 100mm thick concrete bed to drain pipe (100mm bore) with PCC (1:4:8) type D2 using 40mm graded stone aggregate including packing under and haunching aginnst the sides of pipe after they are laid jointed and tested complete all as specified and as directed.

All as per item No-5 here-in-before but bore of drain pipe 150mm

All as per item No-5 here-in-before but bore of drain pipe 200mm

M&L for salt glazed stone ware drain pipe grade-A, conform to IS-651-1980, 100mm dia laid in trenches and jointed in cement mortar (1:1) complete all as specified and as directed.

All as per item No. 8 here-in-before but 150 mm dia

All as per item No. 8 here-in-before but 200 mm dia

Dismantling of brick work built in cement mortar and separating serviceable bricks for re-use in the work and removing unserviceable bricks from site of works complete all as specified and as directed.

M&L for brick work with sub class 'B' bricks (locally available 1st class bricks) straight or curved on plan of any radius built in cement mortar (1:4) for manholes/septic tank/soak well etc complete all as specified and as directed.

All as per Srl item No 12 here-in-before but except bricks. (Note : Old serviceable bricks from Srl item No 11 shall be re-used under this item)

Material & Labour for 15 mm thick rendering in cement mortar (1:4) and top layer of 5mm thick mixed with water proofing compound @ 3% by weight of cement or as per manufacturer's instructions, on fair faces of bricks work or concrete surfaces, finished even & smooth without using extra cement complete all as specified and as directed. (Note : Supply only water proofing compound shall be measured & paid separately).

Material & Labour for 15 mm thick rendering in cement mortar (1:4) in one layer on other than fair faces of brick work, finished even & smooth without using extra cement complete all as specified and as directed.

Supply only integal water proofing compound of approved make/brand complete all as specified and as directed.

Returning, filling in, incl. spreading, leveling, watering & well ramming in layers n.exc 25 cm in soft/loose soil as in pit or trenches all complete as specified and as directed.

Removing excavated surplus soils to a distance n.,exc 50 m and depositing where directed at a level n.exc 1.50 m above the starting point all complete as specified and as directed.

M & L for cleaning/removing of manholes of any type/size and depth upto 1.50 Mtr by removing the cover slab,bailing out water, removing sludge, mud and other accumulated solids, semi solids and other materials upto 30 cm from bottom of the manholes by manual/mechanical method and also cleaning the sewage line of any dia either by water pressure / rodding or by any other flushing and other suitable means adjoining to Manholes at their own arrangements so as to remove the blockage and fully functional the MH to the entire satisfaction of Engineer-in-charge.The sludge/solid content obtained from manholes/Septic Tanks should be deposited after digging earth pit at a separated place/area and after deposition, the pit should be covered/ re-filled with earth/sand and spreading Bleaching powder @ 1.00 KG per sqm sorounding upto 1.0 M radius and repositioning the RCC/CI cover slab all as directed.

All as per Item No 19 above but for Manhole/Septic Tanks exc 1.5M but N.exc 3.0M in depth complete all as specified and as directed .

Cleaning the septic tanks upto 30 cm from bottom of tank of 100 users capacity complete by bailing out water, removing sludge, mud and other accumulated solids, semi solids and other materials by mechanical means/sewage cleaning machine and foreign materials deposited off outside the defence area all as directed.

All as per Item No 22 above but for 50 users all as specified and as directed .

All as per Item No 22 above but for 25 users all as specified and as directed. Note for item Nos 20 to 24:- Measurements of solid sludges without sulage water shall only be recorded after percolation of sulage water. Qoted rate are inclusive of Earthwork,spreading of bleaching powder and removing of sulage water. The complain of blockage shall be cleared/rectified to the complete satisfaction of Engineer-in-charge within the same day.The contractor or his representative alongwith 2 (two) sweepers will report at 9:00 hours to the sub div for complains and submit completion report at 17:00 hours every day to the Engr-in-Charge. In case of non attendance of any sweeper to the Sub Div, an amount of Rs 100.00 for each sweeper will be levied from contractor.

Demolition of reinforced cement concrete of any description and in any position not otherwise specifically provided for complete all as specified and as directed.

Material & Labour for precast RCC (1:2:4) type B1 with using 20 mm graded stone aggregate as in cover slab of gully trap/septic tank/manhole etc incl necssary formwork complete all as specified and as directed.

M&L TMT bar (Fe500 D) 8mm dia as reinforcement. cut to length, bent to shape required including cranking bending, hooking ends and binding with and including mild steel wire (annealed) not less than 0.90mm dia complete all as specified.

Dismantling of old damaged cast iron/PVC soil/waste/vent pipe 100mm/110mm/ /75 mm bore with all fittings in any position all as specified and as directed.

S&F 110mm PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls using stack clamps out of 50 mm x 5 mm flat iron and 16 mm dia round bar stays, including bolts and nuts and securing ends of stays to wall or roo, complete all as specified and directed.

All as per item No 29 above but bore of pipe 75mm complete all as specified and as directed.

S & F PVC (SWR) bends any radious suitbale for 110 mm bore complete all as specified.

All as per item No 31 above but bore of pipe 75mm complete all as specified and as directed.

S&F in repairs 110mm dia PVC (SWR) branch piece single (single 'Y') equal or unequal with acess door complete all as directed.

M&L in repair for cast iron floor trap 75 mm dia with grating including jointing to waste pipe all as specified and as directed.

Demolition of cement concrete (un-reinforced) in ground floor and pavings n.exc 15cm thickness (below or above ground level) including removing all as specified and as directed.

M&L for 75mm thick PCC (1:3:6) Type C2 using 40 mm graded stone aggregate as in path even and smooth without using extra cement all as specified and as directed.

M&L for chequered cement concrete tiles 30cm x 30cm x 25mm thick, set, jointed and pointed in neat cement slurry (with grey cement and pigment) over 15mm thick screed bed in CM (1:6) for laying chequered tiles as in path/pavings all as specified and as directed.

M&L for PCC 1:2:4 type B1 using 20mm graded aggregate as in kerbs to pathway, coping, etc slightly rounded or chamfered angles in and including formwork all as specified and as directed.

M&L for Factory made machine pressed precast concrete interlocking paver block, M-35 grade of any shape and size confirming to IS 15658-2006 of 80mm thickness, set and jointed with grey cement and pigment over 25mm thick sand filling complete all as specified and as directed.

M&L for cement concrete (1:3:6) type C2 using 40mm graded aggregate in surfaces channels and drains complete all as directed.

Dismantling of bricks (laid flat or on edge) or brick tiles in floors, channels,kerbs, aprons, etc. laid,bedded and pointed in cement mortar in drains complete all as specified and as directed.

Removing mortar from and cleaning bricks, stacking for measurement including all extra handling and removal and disposing off rubbish built in cement mortar complete all as specified and as directed.

M&L for bricks, sub class B, laid flat, in drain, bedded and jointed in cement mortar 1:6 and pointed in CM 1:3 complete all as specified and as directed.

M&L for bricks, sub class B, laid on edge in drain using old size bricks bedded and jointed in cement mortar 1:6 and pointed in CM 1:3 complete all as specified and as directed.

All as per item No. 49 here-in-before but except bricks.

M&L for providing cement concrete (1:2:4) type B-0 using 12.5mm graded aggregate in benching or mud stops rounded or chamfered on edges.

Extra for forming fair finished drain or channel 30 cm inner girth in cement concrete,using extra cement, including form, moulds,mitred/stopped ends etc complete all as specified & directed.

S&F in repair MS angle iron of size 50x50x6mm cut to length including drilling, welding etc as in bracket conforming to FE 290 Gde- E-165 complete all as specified and as directed.

Dismantling of fencing wire mesh of any description complete all as specified and directed.

S & F galvanised 2 strand steel barbed wire 2.24 mm dia barbed with 2mm dia barbs at 75mm spacing and straining and fixing to any type of standared rails straining bolts including securing or tying at crossings with and provision of galvanised mild steel wire staples or steel pins etc. as directed (each line wire to be measured)

M&L applying two coats of synthetic enamel paint on new steel surfaces of any description n exc 10cm width or girth over a coat of red oxide primer including preparation of steel surfaces complete all as specified and directed.

M&L for repairs to holes of Rat/Mouse of Manhole faces/surfaces,PCC benching,drains & Channels etc and filling the same with PCC (1;2;4) type B1 (using 20mm graded Aggregate) and finishing to the surfaces complete all as specified and directed .

Cleaning the blockage of Indian/European type water closet by using hand pump with rubber bucket or by opening the inspection eye and using cleaning rod and Toilet cleaner till achieved the clear flow of water and finally cleaning with flush water complete all as directed by the Engineer in charge.

Cleaning the blockage of Floor/Nahani trap by using hand pump with rubber bucket or by using cleaning rod and Toilet cleaner till achieved the clear flow of water and finally cleaning with flush water complete all as directed by the Engineer in charge.

Cleaning blockage of sewer lines in any position by Roding from both sides between two adjacent manholes or from inspection chamber to manhole or from gully trap to inspection chamber or through inspection eye of any depth till clear flow of sewer/water is observed complete all as specified and as directed for the 100/150mm dia (internal) of sewer pipe linescomplete to walls and ceilings or laid in floors all as directed. (Note:- Unit rate quoted shall deemed to be included of cleaning of scrubs, grass small roots etc, around the manholes, inspection chamber at adjacent to the pipe lines cleaning etc and along sewage lines wherever required or as directed and no extra payment shall be made on this account).

All as per Item No-55 here in above But for 200mm dia(internal) pipe line - ditto -

SCHEDULE OF CREDIT Rate quoted by the Tenderer for this schedule should not be less than rate assessed by the department shown on estimated rate column for the respective items,any lower rate qouted by the Tenderer will not be cosidered and total amount under col No 53 will be adjusted accordingly cosidering rate inserted by the MES.

Old unserviceable PVC bends, T/Y junction of any radius

Old unserviceable brick bats

Old rusted reinforcement/iron angle/mild steel of any size

Old unserviceable PVC pipe 110/75mm excluding fittings.

Old unserviceable 75mm dia floor trap/Nahani trap

Unserviceable barbed wire of any description

ANUP ENGINEERING WORKS

M/s PATEL ENGINEERING