HDTRD_NDRF(PDNA_2022)_25_26_28 Recovery and Restoration of RCC bridge no. 1/1 at SaidbondPt-III (Bridge Approaches) under NDRF (PDNA -2022) for the year 2025-26 under Hailakandi District Territorial Road Division.

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. (ii) From Private Land

Granular Sub-base with Well Graded Material (Table 400.1) 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. (ii) For Grading II Material

WBM Grading 3 Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with three wheel 80-100 kN static roller in stages to proper grade and camber, applying and brooming, crushable screening to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 3 as per Technical Specification Clause 405. (B) By Mechanical Means

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

Excavation for Structures 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) upto 3 m depth

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

Providing and laying wire created boulder structures boulder size 22.5 cm to 45 cm having 25 kg average weight for each i/c dumping/laying in S.W.G. Wire mesh of 10 cm x 10 cm (woven diagonally) 4mm dia i/c packing with small size stone spalls and carrying of boulders from a lead of 50 mtr and lift up to 1.5 mtr i/c lying properly the mesh by cutting the mouth and hoisting of wire where felt necessary as per direction of Engineer-in-Charge technical specifications Clause 1301.

Single bamboo palasiding / walling of whole 2nd class bamboo (Jati or Bethua) 75mm dia and closely packed & driven including fitting fixing with half bamboo kamis horizontally in three rows with cane or tying with wire complete and struts 1.5 m apart longitudinally and providing brush wood as per drawing and technical specifications Clause 1302.5 Driven at least 900 mm below ground and 900 mm above ground on average

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