Construction of RCC Bridge at Ganara Supa under Balahati VCDC for the year 2022-23. Pkg No.131_1

Amount

(A) Bridge Work: Dismantling Dismantling of existing existing structures structures like culverts, bridges bridges, retaining retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per Technical Specification Clause 202. II By Mechanical Means a) RCC

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.

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. B By Mechanical Means I Ordinary soil (i) upto 3 m depth

Bored cast-in-situ M35 grade R.C.C. pile excluding reinforcement complete as per drawing and technical specifications and removal of excavated earth with all lifts and lead upto 1000 m. (Pile diameter-) as per MORTH Section No. 1100 & 170

Pile load test on single vertical pile in accordance with IS:2911(Part-IV) as per technical specification of MORTH section No. 1100 a). Initial and Routine load test.

Cement concrete for reinforced concrete in pile cap complete as per drawing and Technical Specification of MORTH section no. 1100, 1500 & 1700 A RCC Grade M-25 Case I: Using Concrete Mixer

Levelling course for Pile cap Providing and Lying of PCC M- 20 levelling course 100mm thick below the pile cap. As per drawing and technical specifications of MORTH section

Supplying, fitting and placing TMT IS:1786 Fe500 D bar reinforcement in foundation complete as per drawing and technical specifications as per MORTH Clause 1600 TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification clause 1500, 1700 & 2200 H0 RCC Grade M25 i) Height upto 5.0 m

Supplying, fitting and placing TMT IS:1786 (Fe 500) bar reinforcement in sub-structure complete as per drawing and technical specifications as per MORTH clause 1002, 1005, 1010, 1202

Supplying, fitting and fixing in position true to line and level elastomeric bearing conforming to IRC: 83 (Part-II) section IX and clause 2005 of MoRTH specifications complete including all accessories as per drawing and Technical Specifications.

Providing weepholes in brick masonry/stone masonry, plain/reinforced concrete abutment, wing wall, return wall with 100 mm dia AC pipe extending through the full width of the structures with slope of 1(V):20(H) towards drawing face complete as per drawing and technical specification Clauses 614, 709, 1204.3.7

Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 i) Granular material

Providing and laying cement concrete in superstructure as per drawing and technical specification clauses 800, 1205.4 and 1205.5 A) With Crushed stones II) RCC M-25 for T beam and slab 1) Height upto 5.0 m

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.

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications clauses 800, 1206.3

Construction of RCC railing of M30 Grade in-situ with 20 mm nominal size aggregate, true to line and grade, tolurence of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000 mm, leaving adequat space between vertical posts for expansion, complete as per approved drawings and technical specifications.

Drainage Spouts complete as per drawing and Technical specification Clause 1209

PCC M15 Ordinary Grade(1:2:5:5) leveling course below approach slab complete as per drawing and Technical specification Clauses 800 and 1211

Reinforced cement concrete approach slab including reinforcement and formwork complete as per drawing and Technical specification MS bar-IS 1786 ( Fe-250 ) Secondary Producer

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 instruction for installation).

(B) Protection Works Providing and laying pitching on slopes laid over prepared filter media for embankment protection complete as per drawing and technical specifications

Providing and laying filter material underneath pitching in slopes for embankment protection complete as per drawing and technical specifications

Boulder apron laid in (Providing and laying of boulder apron laid in made with in including 10% extra for laps and joints laid with stone boulders weighting not less than 40Kg each.)

( C) Subway & Bamboo Br Construction of temporary Bamboo bridge of 3.70m clear road way with Bholuka or Barua Bamboo post 5nos. in each rows driven at least 180cm. 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 be digonally 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.

(D) Road Works Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps 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.

Construction of Embankment with Material Obtained from Borrow Pits 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 compacting to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5 (i) Private Land

Construction of Subgrade and Earthen Shoulders 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

Granular Sub-base with Well Graded Material (Table 400.1) (A) By Mix in Place Method 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) For Grading I Material

Water Bound Macadam Sub-base/base 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 to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 3 as per Technical Specification Clause 405. A By Manual Means

Inter locking concrete Block pavement (A) Interlocking pavement block Providing and laying interlocking concrete block pavement with M40 grade grade of concrete blocks having thickness 80mm as per technical specification clause 1504 complete including carriage. Including Edge block/ Edge restraints

Providing and erecting direction and place identification retro-reflectorised sign as per IRC:67 made of encapsulated lens type reflective sheeting vide Clause 1701.2.3, fixed over aluminium sheeting, 2 mm thick with area not exceeding 0.9 sqm supported on a mild steel single angle iron post 75 x 75 x 6 mm firmly fixed to the ground by means of properly designed foundation with M-15 grade cement concrete 450 x 450 x 600 mm, 600 mm below ground level as per approved drawing and Technical Specification Clause 1701

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 900mm equilateral triangle

800mm x 600mm rectangular

600mm circular

RCC Guard Post: Supplying, fitting and fixing RCC guard post 150cm long erected 75cm above the ground and 75cm below the ground with M-15 grade (nominal mix 1:2:4 with broken stone aggregate up to 20mm size) of cement concrete and required reinforcement tied in position with annealed black wire including centering, moulding the top, curing including painting concrete surfaces in 23cm strips upto 0.75m from the top alternately in black and white and having 2 nos. reflective band of desired shade etc. complete as per design and as directed. (a) 30 cm dia. RCC guard post with reinforcement of 6nos. 12mm dia TMT main steel bars and 6mm TMT/ MS stirrups at 15cm c/c.

Road Marking with Hot Applied Thermoplastic Compound with Reflectorising Glass Beads on Bituminous Surface Providing and laying of hot applied thermoplastic compound 2.5 mm thick including reflectorising glass beads @ 250 gms per sqm area, thickness of 2.5 mm is exclusive of surface applied glass beads as per IRC:35 .The finished surface to be level, uniform and free from streaks and holes and conforming to the MoSrt&H specifications.

Providing reflective pavement marker with Micro prismatic lens in both direction having thermoplastic body adhering to the specification and guidelines of MoSRT&H’s fixed to the road surface using the adhesives and the procedures recommended by the manufacturers with three months replacement warranty and free maintenance.

RAJESH BASUMATARY

Pradip Narzary