CLEANING AND REPAIRS TO AREA DRAINAGE, SEWAGE SYSTEM INCLUDING CLEANING OF SEPTIC TANKS BY MECHANICAL MEANS IN ZONE B and E AREA UNDER GE CHENNAI

Amount

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

Returning filling in foundation including levelling watering and well ramming in layers not exc 25cm using excavated soil all as directed. Note:- For sewage line removal of surplus earth shall not be measured and shall be mounted over refilling.

Removing excavated soil to a distance exc. 50m and n.exc 250m and depositing where directed at a level n.exc 1.50m above the starting point and all as directed.

Desilting of covered drains/culverts of any size and depth including removal of mud/soil/grass and removal/refixing of cover slabs on drain/culvert etc. and disposal of soil outside the MD land complete all as specified and directed

Cleaning of sewage sump of any depth by dewatering and removal of sludge by vacuum truck (by honey sucker machine) and application lime washing inside the sumps complete all as specified and directed.

Cleaning of choked water closet/gully trap/floor trap of bathroom/kitchen/ washbasin upto first manhole complete all as specified and directed. Note : (i) Complaint slip shall be collected from complaint cell of AGE B/R-II office. The time of completion of job shall be 24 hours after detailment, on failure of which a fine of Rs.500/- per day per complaint shall be affected from the contractor's dues.

Cleaning of manholes any size and not exceeding 1.5m depth including lifting, removing sludge, water and cleaning with water including cutting grass, vegetation and bushes to a width of 60cm all around manholes complete all as specified and directed.

All as per item ser No.7 above here-in-before but manholes of depth exceeding 1.5m but not exceeding 3.00m in depth . Note for Item No.7 & 8 : The sludge and water obtained while cleaning of manholes shall be removed with mechanical sucker machine to out side MD land. The rates quoted for items shall include the above provision also.

Rodding and cleaning of sewage pipe line with jet rodding machine by mechanical means with jet pressure pump of 100mm dia sewage line of any depth between gully traps & manholes/two adjoining manholes and removing all foreign materials and sludge completely from the pipe line and making the line functional complete including making accessibility along the manholes/sewage line all as specified and directed.

All as per item No.9 above, but for 150mm bore pipe.

All as per item No.9 above, but for 200mm bore pipe.

M & L for Puncturing SWG pipe of 150mm internal dia for clearing blockages and sealing with piece of pipe and concreting around the pipe including necessary excavation complete all as specified and directed

All as per item No 12 above but 200mm dia pipe. Note for Item No. 12 & 13: The rate quoted shall be deemed to include necessary excavation, and earth work in any type of soil, returning and filling complete all as specified and directed.

M & L for Precast cover slab 1:2:4, type B1 using 20mm graded stone aggregate in landings, cover slabs (for manholes etc) chullah hoods, chajjas, water troughs, mangers, shelves and similar articles with plain faces set in CM 1:4 for manholes including demolition of existing cover slabs any type complete all as specified and directed. Note : Reinforcement will be measured and paid seperately. The rate is deemed to include for removal of debris outside MD Land.

M&L for mild steel TMT bars 6 to 8mm dia , cut to length bent to shape required including cranking, bending, spirally hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.90mm dia or securing with clips complete all as specified and directed.

Demolition of brick masonry built in cement mortar including all quoins, arches, pillars etc, but excluding ashlars facings, dressed stone work, precast concrete articles and disposing off the rubbish debris outside MD land complete all as specified and directed.

Taking down cement plaster on brick work or concrete surfaces etc including racking out joint, hacking for key, scrubbing down with water etc, and removing the debris outside MD land complete all as specified and directed.

M & L for brick work with flyash bricks straight or curved on plan exc 6m mean radius with old size brick built in cement mortar (1:4) complete all as specified and as directed.

M & L for rendering 15mm thick in CM 1:4 on fair faces of brick/concrete surface finished fair and even without using extra cement complete all as directed.

M & L for rendering 15mm thick in CM 1:6 on fair faces of brick/concrete surface finished fair and even without using extra cement complete all as directed.

Material and Labour for plain cement concrete (1:2:4) type B1 using 20mm graded stone aggregate as in coping, including weathering, slightly rounded or chamfered angles and throating, complete all as specified and as directed.

M & L for PCC 1:4:8 type D2 (using 40mm graded stone aggregate) as in concrete bed to drain pipe including packing under and haunching against the sides of pipes after they are laid and tested in 110 mm dia PVC(SWR) pipe line and set in cement mortar complete all as specified and as directed.

M & L for PCC 1:4:8 type C2 (using 40mm graded stone aggregate) as in concrete bed to drain pipe including packing under and haunching against the sides of pipes after they are laid and tested in 150mm dia PVC(SWR)/ NP3 pipe line and set in cement mortar complete all as specified and as directed.

S&F for PVC (SWR) pipes of 110mm dia inner bore single socketed in any length with rubber rings, laid in trenches and set in solvent including demolition and breaking up existing drain pipes (salt glazed ware, AC or reinforced concrete) and setting in cement mortar complete all as specified and as directed.

All as per Item No 24 above, but for 150mm bore pipe. Note for Item No 24 & 25 : Excavation & Earthwork will be measured and paid seperately.

M&L Reinforced concrete pipes, class NP3, laid and jointed complete with collars 150 dia of pipe including demolition and breaking up existing drain pipes (salt glazed ware, AC or reinforced concrete) complete all as specified and directed.

M&L Reinforced concrete pipes, class NP3, laid and jointed complete with collars 200 dia of pipe including demolition and breaking up existing drain pipes (salt glazed ware, AC or reinforced concrete) complete all as specified and directed.

M & L for PCC 1:4:8 type C2 (using 40mm graded stone aggregate) as in concrete bed to drain pipe including packing under and haunching against the sides of pipes after they are laid and tested in reinforced concrete pipe class NP3 of 200mm bore laid and jointed set in cement mortar complete all as specified and as directed.

M&L for PCC 1:2:4 type B-1 using 20mm graded crushed stone aggregate in surface channels and drains including necessary formwork complete all as specified and as directed.

SFRC (Steel fibre reinforced concrete) manhole cover with frame of size 70cm x 70cm x 40/50 mm thick edge protected with MS Steel flat including reinforcement, welding and laying etc fixing directly to opening of manholes complete all as specified and directed.

SFRC (Steel fibre reinforced concrete) manhole cover with frame of size 85cm x 85cm x 40/50 mm thick edge protected with MS Steel flat including reinforcement, welding and laying etc fixing directly to opening of manholes complete all as specified and directed.

S&F in repair of PTMT grating doom 100mm dia (minimum weight 25gms) including taking down / demolition of existing complete all as directed.

S&F in repair for CP Cockroach trap (127mm x 127mm) with waste hole complete all as specified and directed.

S&F PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls 110mm dia including breaking the existing pipe complete all as specified.

S&F PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls 75mm dia including breaking the existing pipe complete all as specified.

Supply and Fix PVC (SWR) bend any radius suitable for 110mm dia pipes complete all as specified.

Supply and Fix PVC (SWR) bend any radius suitable for 75mm dia pipes complete all as specified.

S&F PVC SWR branch piece single 'Y' equal or unequal 110mm bore with access door complete all as specified.

S&F PVC SWR branch piece single 'Y' equal or unequal 75mm bore with access door complete all as specified.

Supply and Fix PVC (SWR) Vent cowl suitable for 110mm dia vent pipe complete all as specified.

Supply and Fix PVC (SWR) Vent cowl suitable for 75mm dia vent pipe complete all as specified.

Cutting into existing manhole for connecting new drains and making good to pipes and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 section ) in PCC 1:2:4 type B-1 using 20 mm graded crushed stone aggregate smooth finished and reforming benching as specified and directed for 150 mm dia of pipe complete all as specified and directed.

Cutting into existing manhole for connecting new drains and making good to pipes and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 section ) in PCC 1:2:4 type B-1 using 20 mm graded crushed stone aggregate smooth finished and reforming benching as specified and directed for 100 mm dia of pipe complete all as specified and directed.

KS CONSTRUCTIONS (BID ID -3373621)

Sri Aruna Associates (BID ID -3373074)

JVM Construction (BID ID -3373985)