Protection work with Boulder Pitching at Polla River (West Side) from Jahidul House to Jaynal Abdin House at Kawaimari village in Baksa District for the year 2025-26. TN_04_21

1.Clearing and Grubbing 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 use dor 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. A) In area of non thorny jungle

2.Earthwork in Core 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 p g q p 1000 m as per Technical Specification Clause 301.5 i) Private land

3.Earthwork in Subgrade 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

4.GSB Gr-II A) By Mix in Place Method Construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader, 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. G.S.B Gr- II

5.Providing and laying of boulder apron laid in wire crates Providing and laying of boulder apron laid in wirec rates with 4mm dia GI wire conforming to IS:280 and IS:4826 in 100 mm x 100 mm mesh (woven diagonally) including 10 percent extra for laps and joints laid with stone boulders weighing not less than 25 kg each as per drawing and technical specifications clause 1301

6.Prviding and laying filter material underneath pitching in slopes Providng and laying filter material underneath pitching in slopes complete as per drawing and technical specifications clause 1302

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

11.Planting of trees and maintenance for one year Planting of Trees and their Maintenance for three Year (Planting of trees by the road side (Avenue trees) in 0.60 m dia holes, 1 m deep dug in the ground, mixing the soil with decayed farm yard/sludge mannure, planting the saplings, backfilling the trenches, watering, fixing the tree guatrd and maintaining the plants for one year.