Bridge1/Dhubri/19 Bridge No. 2/1 on Mayerchar PtI to Nayeralga PtIII

Labour for taking out old piles of timber bridge with necessary scaffolding, jati bamboos, jumper ropes etc, complete and stacking them at suitable places as directed. i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Labour for dismantling all members of the timber bridge (excluding piles) with necessary scaffolding, jati bamboos, jumper ropes etc, complete and stacking them at suitable places as directed (all members will be under custody of the contractor till taken over by the department) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Construction of temporary Bamboo bridge of 3.70m clear road waywith Bholuka or Barua Bamboo post 5nos. in each rows driven at least180cm. below ground level and rows not more than 150cm apart from center to center Bholuka or Barua Bamboo dham longitudinal groth both closely placed and tied with half bamboo 90cm to 120cm apart in both layers and ttwo layers of jati bamboo chattais ( top layer should bedigonally woven), 70 mm to 100 mm thick brushwood in between chattias should be tied with half jati bamboo on both ends, bamboo railing with bholuka or barua bamboo post placed at150cm apart jati or betua bamboo hand rails of two lines both side of every alternate rows.All tying must be done with cane or coir string and only mature bamboo should be used in work i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and backfilling in trenches with excavated suitable material. I) Ordinary Soil. i) depth upto 3.0m (without dewatering) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Providing and Laying Cutting edge of mild steel Weighing 40kg per metre for well foundation complete as per drawing and as per clause 1200&1900 of MORTH Specifications i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Plain/Reinforced Cement concrete, in Well Foundation complete as per Drawing and as per clause 1200,1500&1700 of MORTH Specifications A. Well Curb i. RCC M-35 Grade . Case I. Using Concrete Mixer i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Plain/Reinforced Cement concrete, in Well Foundation complete as per Drawing and as per clause 1200,1500&1700 of MORTH Specifications B. Well Steining i. RCC M-35 Grade Case I. Using Concrete Mixer i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Plain/Reinforced Cement concrete, in Well Foundation complete as per Drawing and as per clause 1200,1500&1700 of MORTH Specifications C. Bottom Plug Concrete to be placed using tremie pipe i. PCC Grade M-25 Grade . Case I. Using Concrete Mixer i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Plain/Reinforced Cement concrete, in Well Foundation complete as per Drawing and as per clause 1200,1500&1700 of MORTH Specifications F. Well Cap i. RCC M-35 Grade Case I. Using Concrete Mixer i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

E. Top Plug Concrete ii. PCC Grade M-20Grade (PCC) . Case I. Using Concrete Mixer i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Sinking of 8.00M Dia external Well (other than Pneumatic method of Sinking) complete as per drawing and as per MORTH Section no.1200 A. Sandy Soil iii. Beyond 10m upto 20m i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Sand filling in wells complete as per drawing and technical specifications as per MORTH Section no 1207 i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Reinforcement in Foundation: Supplying, fitting and placing TMT IS:1786 Fe500 D bar reinforcement in foundation complete as per drawing and technical specifications. TMT-IS 1786 (Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification and steel shuttering formwork, Without plasticiser, RCC Grade M35, With Batching Plant, Transit Mixer and Concrete Pump Height upto 5m i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Supplying, fitting and placing TMT IS:1786 (Fe 500) bar reinforcement in sub-structure complete as per drawing and technical specifications. TMT-IS 1786 (Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

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 matting surfaces, complete assembly to be of cast steel/fabricated structural steel, meatal and elastomer elements to be as per IRC:83 part-I &II respectively and parts conforming to BS:5400, section 9.1 & 9.2 and clause 2006 of MORTH&S Specification complete as per drawing and approved technical specification. i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

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 surfaces behind the abutment, wing wall and return wall to the full height compacted to firm condition complete as per drawing and technical specification i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Back filling behind abutment, wing wall and return wall complete as per drawing and technical specification b) Sandy material i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Furnishing and Placing Reinforced /Prestressed cement concrete in super-structure as per drawing and Technical Specification' including steel shuttering formwork. (N) Without Plasticiser - E) PSC Grade M-40 - (ii) For T-beam & Slab, Case II - Using Batching Plant, Transit Mixer and Concrete Pump b) Height 5m to 10m i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Reinforcement in Super Structure: Supplying, fitting and placing TMT conforming to IS:1786 Fe 500 D reinforcement in super-structure including splicing complete as per drawing and technical specifications TMT-IS 1786 (Fe-500 D) Primary Producer (TATA / SAIL / Esser Steel / Jindal panther steel/ Shyam steel or equivalent) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

High tensile steel wires/strands including all accessories for stressing, stressing operations and grouting complete as per drawing and Technical Specifications i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

P.C.C. M 15 ordinary grade (1:2.5:5) levelling course below approach slab complete as per drawing and technical specifications Clauses 800 and 1211 a) With crushed stone Nominal mix (1:2.5:5) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Reinforced cement concrete approach slab including reinforcement and formwork complete as per drawing and technical specification. TMT-IS 1786 (Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Reinforced Cement Concrete Crash Barrier (Provision of an Reinforced cement concrete crash barrier at the edges of the road, approaches to bridge structures and medians, constructed with M-40 grade concrete with HYSD reinforcement conforming to IRC:21 and dowel bar 25mm dia, 450mm 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 June 1994 as per dimension in the approved drawing and at locations directed by the engineer, all as specified. i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Construction of RCC railing of M30 Grade in-situ with 20 mm nominal size aggregate, true to line and grade, tolerance of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000 mm, leaving adequate space between vertical posts for expansion, complete as per approved drawings and technical specifications. i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

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 Sq.m.) For Plain surface i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

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 Sq.m.) For RCC Railing i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. Without plasticiser, PCC Grade M20 for Footpath i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Providing and laying of boulder apron laid in wire crates with 4 mm dia GI wire conforming to IS:280 and IS:4826 in 100 mm x 100 mm mesh (woven diagonally) including 10 per cent extra for laps and joints laid with stone boulders weighing not less than 25 kg each as per drawing and technical specifications Clause 1301 i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 a) Granular material i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Providing and laying filter material underneath pitching in slopes complete as per drawing and technical specifications Clause 1302 i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Providing and laying pitching on slopes laid over prepared filter media as per drawing and technical specifications Clause 1302 i) Stone / Boulder i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specification Clause 201 i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Excavation for roadwork in soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross-sections, and transporting to the embankment location with a lift upto 1.5 m and lead upto 1000 m as per Technical Specification Clause 302.3 i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Construction of embankment with approved material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and comp g actin to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5 i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000 m as per Technical Specification Clause 303.1. (i) Private Land i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller to achieve the desired density, complete as per Technical Specification Clause 401. i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

WBM Grading 2 , Using stone screening Type-B 11.2 mm for Gr.II - Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN in stages to proper grade and camber, applying and brooming, stone screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density grading 2 as per Technical Specification Clause 405. A. By Manual Means i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

WBM Grading 3 , Using stone screening Type-B 11.2 mm for Gr.III - Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN in stages to proper grade and camber, applying and brooming, stone screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the req

uired density grading 2 as per Technical Specification Clause 405. A. By Manual Means i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Providing and laying interlocking concrete block pavement with M40 grade of concrete blocks having thickness 80mm as per technical specification clause 1504 complete including carriage. a) Including Edge block/ Edge restraints i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Metal Beam Crash Barrier, Type - A: "W" Metal Beam Crash Barrier (Providing and erecting a "W" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 70 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2m center to center, 1.8 m high, 1.1m below ground/road level, all steel parts and fitments to be galvanized by hot dip process, all fitting to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a spacer of channel section 150mm x 75mm x 5mm, 330mm long complete as per clause 810.) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Soil/ Sub-Grade stabilisation using non-woven Geo-Textiles/ Geo- Grids Providing and laying one layer of non-Woven geotextile of minimum mass per unit area of 280gms/sqm. having minimum roll width of 5.0m treated with carbon black with physical properties as given in clause no 702.2.3. over 25mm thick compacted sand layer on a prepared subgrade as a filter media with necessary overlaps as per drawing and technical specification and as directed by the Engineer in charge complete. i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Providing and fixing of retro-reflectorised cautionary, mandatory and informatory sign as per IRC:67 made of encapsulated lens type reflective sheeting vide Clause 1701.2.3 fixed over aluminium sheeting, 1.5 mm thick supported on a mild steel angle iron post 75 mm x 75 mm x 6 mm firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 450 mm x 450 mm x 600 mm, 600 mm below ground level as per drawings and Technical Specification Clause 801 600mm x 600mm square i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Soil quality monitoring at 3 locations for 1 season for 1 year. (Pre-Construction Stage) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.

Soil quality monitoring at 3 locations for 2 seasons for 2 consecutive years. (Construction Stage) i) Bridge No. 2/1 on Mayerchar Pt-I to Nayeralga Pt-III.