Rehabilitation of Sewerage system of Singtam Town for Pollution Abatement of River Tista in Sikkim.

Amount

Sewer Network System

Excavation in soil mixed with moorum, shingle, kankar, etc. including cutting of joints, pits, trimming, dressing, levelling, refilling of trenches in 20 cm layers, watering & ramming the same including disposal of surplus earth or other dismantled materials upto a distance of 50 m from the centre of the trenches - 0 to 1.5 m

Beyond 1.5 m to 3.0 m below G.L

Excavation Beyond 3.0 m to 4.0 m below G.L

Excavation Beyond 4.0 m to 6.0 m below G.L

Excavation (Soft rock)

Excavation of earth depth upto 1.5 mt. Below G.L. for laying of sewer manholes, cu.m Gully pits, Chambers, sumps etc. in ordinary soil(earth,sand loam and clay) including cutting of joints, pits, trimming, dressing, levelling refilling of trenches in 20 cm lay . excavation in hard rock by chiselling including stacting of useful materials within 50 meters - 0 to 1.5 m BGL-(Requiring Blasting)

Excavation of earth depth upto 1.5 mt. Below G.L. for laying of sewer manholes, Gully pits, Chambers, sumps etc. in ordinary soil(earth,sand loam and clay) including cutting of joints, pits, trimming, dressing, levelling refilling of trenches in 20 cm lay excavation in hard rock by chiselling including stacting of useful materials within 50 meters- (Blasting Prohibited)

Removal of unserviceable Soil with Disposal upto 1000 meters( Removal ofunserviciable soil including excavation loading and disposal upto 1000 meters lead but excluding replacement by suitable soil which shall be paid separately as per clause 305)

Removal of Telephone /Electric Poles and lines i/c excavation and dismantling of foundation concrete and lines under the supervision of concerned department, disposal with all lifts and upto a lead of 1000mtrs and stacking the serviceable and unserviceable material separately

Dismantling of CI water pipelines 600mm dia under the supervision of concerned department, i/c disposal with all lifts and upto a lead of 1000mtrs and stacking the serviceable and unserviceable material separately

Providing & laying 1:2:4 mix cement concrete work including shuttering, centering,curing,etc,all complete.

P/L 1:3:6 mix cement concrete work i/c shuttering, centering, curing etc. all complete

Providing & laying in position cement concrete 1:4:8 graded stone of 40 mm nominal size excluding the cost of centaring & shuttering upto plinth level

Providing 7 Laying Plum Concrete in 1:2:4 cc with 50% clean hard stone of sizes not exceeding 15 cm including shuttering compacting and curing all complete)

Providing and laying einforced Rcement concrete in 1:1:2 retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets etc. upto a floor five level, excluding the cost of centering, shuttering and finishing.

P/L in position 1:2:4 Reinforced cement concrete excluding the cost of formwork and reinforcements.

Providing & laying in position cement concrete 1:1.5:3 graded stone of 20 mm nominal size excluding the cost of centaring & shuttering upto plinth level

Controlled cement concrete grade M 25 Mix etc.

Bored cast-in-situ M35 grade RCC pile excluding reinforcement complete as per drawing and technical specifications and removal of excavated earth with all lifts and lead upto 1000m

Cement concrete for reinforced concrete in pile cap complete as per drawing and Technical Specification RCC Grade M25 Case-II with batching plant, transit mixer and concrete pump for pile cap

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete including mild steel hooks for slab

Supplying bending and placing of tor steel reinforcements in all RCC works i/c cost of binding wires all complete

Providing and Fixing MS Round or square bars for (fitting fixing CI steps)

Supplying, fitting and placing un-coated HYSD barreinforcement in foundation complete as per drawing and technical specifications. For Pile Cap

Providing steel liner 10mm th. For curbs and 6 mm th. For steining of wells i/c fabricating and settingout as per detailed drawing

Weight of steel section

Applying priming coat with ready mixed aluminium primer or approved etc.

Providing and painting with ready mixed paint or approved quality and shade with two or more coats to give an even and smooth shade including clearing the surface complete on new surface.

Hire and labour charges for shuttering etc Steel shuttering of 9 to 12 mm th. Approved quality Ply board shuttering in any concrete work

Providing fixing and removing form work for casting RCC items.

Providing fixing and removing formwork for the steps of cc footpath all complete

Providing, fixing and removing form work for RCC works all complete.

Form work for Base Slab, Top slab and perforated slab

Form work for Walls, stem and counterfort

Form work with steel sheet plates etc.

Centering shuttering including struttings, propping etc. and removal of form work for Foundations, footings, bases for columns

Shoring 6.5 cm thick. Depth upto 4000 mm a) 4 sides x 5.5 m x L Analysed Rate

Provide shoring work beyond 1.5m depth.

Supplying and filling sand in trenches for bedding i/c watering and ramming, all complete.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth: consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m

Providing & laying 25 mm thick kota/kattapa stone slab flooring over 20 mm thick 1:4 cm

Providing & laying 25 mm thick kota/kattapa stone slab in risers of steps laid on 12 mm thk base of cm 1:3 cm

Providing and laying first class brick work in one brick thick in superstructure of standard size bricks with 1:5 cement mortar(1 cement and 5 clean coarse sand ) as per the direction of Engineer in charge including curing etc all complete.

125mm th brick work with 1st class brick in cement mortar 1:4 mix

Providing and laying first class brick work in half brick thick in superstructure of standard size bricks with 1:4 cement mortar (1 cement and 4 course sand) including carriage of bricks up to work site, curing etc all complete.

Brick work with BFS bricks of class designation 125 in foundation & plinth in Cement Mortar 1:4 - 0 to 1.5 m BGL

P/L 18mm thick 30 cm ht cement plaster skirting with cement mortar 1:3

P/L 12mm th. Cement plaster of 1:4 CM all complete.

Plaster 1:3 21mm th.

Providing and Laying 20mm thick cement plaster of specified mix in single coat including finishing even and smooth and curing complete. (1:3 Mix)

Laying and jointing cost 150MM DWC

Laying and jointing of pipes 200mm DWC

Laying and jointing of DI pipe 200 mm

Laying and jointing of DI pipe 300 mm

Laying and jointing of DI pipe 400 mm

Repair of Electric and Telephone cables

Provision for repairing damaged structures

Provision for Dewatering and temporary diversion of sewage lines

Construction of Sub-grade and earthern shoulder

Compacting Cut Formation

Construction of granular sub-base by providing local material spreading in uniform layers, waterin ramming to required template and consolidating with power road roller 80-100kN capacity to achieve the desired density complete.

Water Bound Macadam Base (Grade -II)

Water Bound Macadam Base (Grade -III) using screening type B

Prime coat: Providing and applying primer coat with bitumen emulsion (SS-1) on prepared surface of granular base i/c cleaning of road surface and spraying primer at the rate of o.90-1.2 kg/sqm using mechanical means

Track coat: Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg/sqm on the prepared granular surface treated with primer & cleaned with hydrauluic broom.

P/L and rolling of open graded premix surfacing of 20mm th. Composed of 13.2 mm to 5.6mm aggregates either using penetration grade bitumen or cut back or emulsion to required line, grade and level to serve as wearing course on a previously prepared base i/c mixing in a suitable plant laying and rolling with a smooth wheeled roller 8-10 capacity.

P/L seal coat sealing the voids in bituminous surface laid to the specified levels grade and cross fall using type B

Sinking as per IRC specifications and drawing foundation wells I/c hire charges of all tools and plants etc & supplying,power dewatering etc ( 0 to 3.0m)

Water tight joint of structure.

Supplying dividing strip etc Glass 3 mm th.

Supplying GI tank etc with 1.6mm th. GI sheet 1000 ltrs capacity

Hire and labour charges for stagging etc

Cost of Haulage Excluding Loading and Unloading.

Loading and Unloading of cement or steel Manual Means and Stacking (For stock materials)

Loading and Unloading of Non stock materials Manual Means and Stacking( For Non- stock materials)

Haed load of stock materials for distance beyond 100 m for every additional 1000 m

Haed load of non-stock materials for distance beyond 100 m for every additional 1000 m

Loading and Unloading of Boulders Manual Means and Stacking( For Non-stock materials)

Carting of following pipes & specials from store to site of works, lowering them into trenches and laying true to alignment and gradient including testing of pipe line but excluding cost of trenching and cutting of pipes etc for marking up lengths and mark

Supply of Pipes and accessories for pumping main

Cartage of materials for Screen chamber

Cartage of materials for construction of well for SPS/MPS

Supply and Installation of Pump and Motor at Sewage Pumping Station

Head load

Carriage of sand (Head Load)

Construction of Retaining Wall along the River Side of 3.0m height

STP WORKS

Design, Construction, Supply, Installation, Testing, Commissioning, of a structurally designed multi-storied finished RCC building housing a Sewerage Treatment Plant (STP) with a capacity of not less than 3.0 MLD with laboratory and staff room within the existing available area (25m x 10m), based on Moving Bed Biofilm Reactor (MBBR) or equivalent Technology including all necessary equipment (electro-mechanical components), automation systems and accessories required for complete sewage treatment ensuring compliance with latest CPCB/SPCB environmental standards and National Green Tribunal (NGT) guidelines including ancillary works such as but not limited to, Site development, protective works, drains, water supply, electrification etc.The work shall also include Operation and Maintenance for a period of 6 months including handholding and training.

U NARAYAN SHARMA (BID ID -3184)

SOM BAHADUR LIMBOO (BID ID -3183)