Restoration of flood damaged of Borjana I to Borjana III Road under SDRF for the year 2020-21

Amount

Construction of embankment with approved materials obtained from borrow pits with a lift of 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 s houlders with approved material obtained from borrow pits with all lifts and leads, transporting to ite,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.

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) Fo Grading II material

Providing,laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreadin in uniform thickness ,hand packing,rolling with smooth wheel roller 80-100kN in stages to prepare gradeand camber,applying and broomin,stone screening to fill up the intersticesof coarse aggregate,watering and compacting to the required density Grading 3 as per Technical Specification Clause 405.

Providing and laying interlocking concrete block pavement with M40 grade grade of concrete blocks having thickness 80mm a s per technical specification clause 1504 complete including carriage. (a) Including Edge block/Edge restrains

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

Supplying,fitting and laying with Geo - textile bags og Type A (1.30 X0.70 M) made of Geo textile non woven fabric sheets of 400 GSM manufactured from polyster /polypropylene conforming to relevant ISO standard filled with specified sand /silt from flood plain or sdjacent char within a distance of 90 m of the work site including excavation, filling Geo bags with sand weighing 126.00 kg after filling,stitching the mouth of the filled bags with polypropylene or polyster complete as per technical specifications and as directed. (b) Without Boat.

Supplying,stitching and laying of Non wooven Geo textile Fabric Sheet of 400 gsm.

Niamul Alom