Const. of RCC Box Culvert of Khoirabari Goreswar road (at Sukulipara) under SOPD (BTC) for the year 2023-24. (TN_61_1)

Amount

11.1. 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. V Marshy soil

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

11.4. Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 B. With natural Gravel III. P.C.C Grade M20 Nominal mix (1:2:4)

11.4. Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 B. With natural Gravel IV. R.C.C Grade M20

11.8. Supplying, fitting and placing TMT reinforcement bar (Other ISI approved TMT reinforcement bar (SAL/BISCON/THERMAX or equivalent)) in foundation complete as per drawings and technical specifications Clauses 1000 and 1202

12.5. Plain/reinforced cement concrete in substructure complete as per drawings and technical specification Clauses 802, 804, 805, 806, 807, 1202 ans 1204 B. With Natural Gravel IV. RCC Grade M 25 i) For height upto 5 m

12.7. Supplying, fitting and placing TMT (Fe-500 D) reinforcement bar (Other ISI approved TMT reinforcement bar (SAI/BISCON/THERMAX or equivalent) in substructrue complete as per drawings and technical specification Clauses 1002, 1005, 1010 & 1202

12.9. 12.9. 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

12.10. Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 I. Granular material

13.5. Providing and laying cement concrete wearing course M 30 grade including reinforcement complete as per drawing and technical specifications Clauses 800 and 1206.3 A. With crushed stone

13.6. Construction of R.C.C. railing of M 25 grade in cast-in-situ with 20 mm nominal size aggregate, true to line and grade, tolerance of vertical railing post not to exceed 1 in 500, Running centre-to-centre spacing between vertical posts not to exceed 2000 mm as per drawing and technical specifications Clauses 800, 900 and 1208.3

13.10. Drainage spouts complete as per drawing and technical specifications Clause 1209

14.9. Providing and laying curtain walls complete as per drawing and technical specification Clause 1304 iii. Cement concrete grade M 10

14.10. Construction of flexible apron 1 m thick comprising of loose stone boulders weighing not less then 25 kg beyond curtain wall

3.4. 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

3.14. 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

14.2. 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

SRI BIBEKANANDA DEY