C/o 45 m Span Bridge at 10.020 Km over River Ayee

Amount

SH : 1 : Foundation

Excavation for Structures Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material (with de watering)

a) Ordinary Soil

B Mechanical means

(iii) c Depth above 6m with dewatering

b) Hard Rock ( blasting prohibited )

Mechanical Means (with de-watering)

Plain/Reinforced Cement Concrete in Open Foundation complete as per Drawing and Technical Specifications.

A (i) PCC Grade M15

Plain/Reinforced Cement Concrete in Foundataion complete as per drawing Technical Specifications

RCC Grade M30

Case II With Batching Plant, Transit Mixer and Concrete Pump

Supplying, fitting and placing HYSD bar reinforcement in Foundation complete as per drawing and Technical Specifications (Fe 500 or above)

SH : 2 : Sub structure

Plain/Reinforced Cement Concrete in Sub structure complete as per drawing Technical Specifications

RCC Grade M30

Height 5m to 10m

Case II With Batching Plant, Transit Mixer and Concrete Pump

Supplying, fitting and placing HYSD bar reinforcement in sub-structure complete as per drawing and Technical Specifications

Providing weep holes in Brick masonry/Plain/ Reinforced concrete abutment, wing wall/ return wall with 100 mm dia AC pipe, extending through the full width of the structure with slope of 1V :20H towards drawing foce. Complete as per drawing and Technical Specifications

Providing and laying of Filter media with granular materials/stone crushed aggregates satisfying the requirements laid down in clause 2504.2.2. of MoRTH specifications to a thickness of not less than 600 mm with smaller size towards the soil and bigger size towards the wall and provided over the entire surface behind abutment, wing wall and return wall to the full height compacted to a firm condition complete as per drawing and Technical Specification.

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical Specification With Granular materials.

Supplying, fitting and fixing in position true to line and level POT-PTFE bearing consisting of a metal piston supported by a disc or unreinforced elastomer confined within a metal cylinder, sealing rings, dust seals, PTFE surface sliding against stainless steel mating surface, complete assembly to be of cast steel/fabricated structural steel, metal and elastomer elements to be as per IRC: 83 part-I & II respectively and other parts conforming to BS: 5400, section 9.1 & 9.2 and clause 2006 of MoRTH Specifications complete as per drawing and approved Technical Specifications.

SH : 3 : Super structure

Furnishing and Placing Reinforced/ Prestressed cement concrete in super-structure as per drawing and Technical Specification

RCC Grade M 30, height up to 5m

Using Batching Plant, Transit Mixer and Concrete Pump.

Providing and placing of a Reinforced cement concrete crash barrier at the edges of the road, approaches to bridge structures and medians, constructed with M-35 grade concrete with HYSD reinforcement of grade Fe500 conforming to IRC:21 and dowel bars 25 mm dia, 450 mm long at expansion joints filled with pre-moulded asphalt filler board, keyed to the structure on which it is built and installed as per design given in the enclosure to MOST circular No. RW/NH - 33022/1/94-DO III dated 24 June 1994 as per dimensions in the approved drawing and at locations directed by the Engineer, all as specified. ( M 35 grade concrete crash barrier)

Type - B, "THRIE" : Metal Beam Crash Barrier

Providing and erecting a "Thrie" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 85 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2 m centre to centre, 2 m high with 1.15 m below ground level, all steel parts and fitments to be galvanised by hot dip process, all fittings to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a space of channel section 150 x 75 x 5 mm, 546 mm long complete as per clause 810

Supplying, fitting and placing HYSD bar of grade Fe 500 reinforcement in super-structure complete as per drawing and technical specifications.

Providing and fixing of Drainage Spouts complete as per drawing and Technical specification

Providing and placing of PCC M15 Grade leveling course below approach slab complete as per drawing and Technical specification

Providing and placing of Reinforced cement concrete approach slab including reinforcement and formwork complete as per drawing and Technical specification (M 30)

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications

Strip Seal Expansion Joint

Providing and laying of a strip seal expansion joint catering to maximum horizontal movement upto 70 mm, complete as per approved drawings and standard specifications to be installed by the manufacturer/supplier or their authorised representative ensuring compliance to the manufacturer's instructions for installation.

Painting on concrete surface

Providing and applying 2 coats of water based cement paint to unplastered concrete surface after cleaning the surface of dirt, dust, oil, grease, efflorescence and applying paint @ of 1 litre for 2 sqm.

Supply and fabrication of steel work at fabricators workshop comprising of main griders, cross griders connecting plates, stringers,stiffening plates etc. from steel plates and structural steel of specified grades as per approved drawing including straightening, decaling, degreasing cutting to size and shape drilling welding and grinding supply of all MS/HTS shop or site bolts nuts & washers, holding down bolts and nuts etc. trail assembling at workshop one priming coat of shop paint with red lead paint conforming to IS-102 with all labour material cost of paints consumables stacking in protected condition etc complete as per specification and as directed by the Engineer in charge (Carriage cost from fabricator workshop to actual bridge site will be paid separately.)

Haulage of fabricated steel components by mechnical transport from source( Tinsukia) to Site of work) including cost of loading, unloading and stacking.

Taking delivery fo fabricated steel work from stacks at site as necessary assemblimg and erection at site as necessary assembling and erection of fabricated steel structure to proper line level and camber as per approved drawing complete in asll respect including transportation and handling supply of all fastener. painting of all exposed surfaces of steel work after erection with one coat or red lead conforming to IS-102 and two coats Aluminium paint to IS-2339, grouting of anchor bolts in position including all lobour consumables material machinery tools and tackles complete as per specification and as directed by the Engineer fin charge.

Load testing of Super Structure of bridge after completion in all respect using static load method to determine acceptance of criteria of elastic deformation as per IRC:SP:51-2015 complete as per direction of Engineer-In-Charge.

SH : 4 : Protection Works.

Gabian Structure for Retaining Earth

Providing and construction of a gabion structure for retaining earth with segments of wire crates of size 7 m x 3 m x 0.6 m each divided into 1.5 m compartments by cross netting, made from 4 mm galvanised steel wire @ 32 kg per 10 sqm having minimum tensile strength of 300 Mpa conforming to IS:280 and galvanizing coating conforming to IS:4826, woven into mesh with double twist, mesh size not exceeding 100 x 100 mm, filled with boulders with least dimension of 200 mm, all loose ends to be tied with 4 mm galvanised steel wire

Providing and laying Filter material underneath pitching in slopes complete as per drawing and Technical Specification.

Boulder Apron Laid in Wire Crates

Providing and laying of boulder apron laid in wire crates made with 4mm dia GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh (weaved diagonally) including 10 per cent extra for laps and joints laid with stone boulders weighing not less than 40 kg each.

Routine Maintenance

First Year

Second Year

Third Year

Fourth Year

Fifth Year

M/S PITGONG KAYING ENTERPRISES (BID ID -596581)