Recovery and Reconstruction of Rupohi Garpara to Chutiapara Road at ch.370.00m under NDRF(PDNA-2022) for the year 2025-26 under Dhemaji TRD, Dhemaji LAC

Dismantling of existing structures like culverts 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 dismantledmaterial, 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 ,(B) Reinforced Cement Concrete

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.

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. For Grading I Material,

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 material to fillup the interstices of coarse aggregate,watering and compacting to the reqd. density grading 3 as per Technical Specification clause 405. By manual means

Interlocking pavement block :Providing and laying interlocking concrete block pavement (M40) having thickness 80mm as per technical specification clause 1504 complete including carriage. Including Edge block/ Edge restraints

Providing and laying of boulder apron laid in wire crates with 4 mm dia GIwire 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

Providing and laying pitching on slopes laid over prepared filter media as per drawing and technical specifications Clause 1302

Providing and laying filter material underneath pitching in slopes complete as per drawing and technical specifications Clause 1302

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification. B. Sandy material

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. I Ordinary soil,A Manual Means,(I) Without dewatering,(i)upto 3 m depth

Fillling in foundation trenches as per drawing and technical specification Clause 305.3.9 I. Sand filling

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork.(N) Without plasticiser, A PCC Grade M-15

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork.(N) Without plasticiser, A PCC Grade M-20

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork.(N) Without plasticiser, C RCC Grade M-20

Supplying, fitting and placing TMT bar reinforcement in open foundation complete as per drawing and technical specifications clause 1000 and 1202

Plain/Reinforced cement concrete, in sub-structure complete as per drawing and technical specification including steel shuttering formwork.(N) Without plasticiser, A PCC Grade M-15

Supplying, fitting and placing TMT bar reinforcement in sub-structure complete as per drawing and technical specifications clauses 1002,1005,1010 &1202.

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification and steel shuttering formwork (N) Without plasticiser, E RCC Grade M-20, a) Height upto 5 m,Case-I

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications Cl. 800 and 1206.3,B. Natural gravel

Providing Pressure relief pipes 100 mm dia. In bottom slab of box cell on a filter media base of 500x 500 mm as per drawing and technical specfication clause 1205.5.7

Providing and Laying Curtain wall complete as per drawing and Technical specification clause 1304, B) Cement Concrete Grade M-10

Flexible Apron :Construction of flexible apron 1 m thick comprising of loose stone boulders weighing not less than 40 kg beyond curtain wall.

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.

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification , 'II -Sandy material

Providing weep holes in brick/stone masonry abutment and return wall complete

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