Improvement of road from 2 No. Sapkata to Jialbasti road under SOPD, BTC for the year 2022-23. TN No.21_21.

Amount

Road Works: Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or 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. (i) By Manual means. (A) In area of non-thorny jungle.

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 (l) Private Land.

Construction of Sub grade and Earthen shoulder with approved materials obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirement of Table 300.2 with a lead upto 1000 m as per Technical Specification clause 303.1 (i) Private Land.

(A) 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

3) WBM Grading 3 - Using Stone screening Type-B 11.2mm for Gr.III: Providing, laying, spreading and compacting graded stone aggregates of specific size to water bound macadam specification including spreading in uniform thickness, handpacking, rolling with three wheel 80-100 kN 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. (A) By Manual Means

(A)Inter locking concrete Block pavement (i) a- Providing and laying interlocking concrete block pavement (M 40) having thickness 80mm as per technical specification clause 1504 (inclusive of Edge restraint and carruage)

Providing and fixing of semi reflective cautionary, mandatory and informatory sign as per IRC:67 made of 1.5mm thick MS sheet duly stove white colour in front and gray colour on back with red reflective border of 65mm width and required letters and figures with reflective tape engineering grade as per Clause 1701.3.9 of MORD for Rural Roads of required shade and colour supported and welded on 47mm x47mm x12 SWG sheet tube firmly fixed to the ground by mean of properly designed foundation with M-15 grade cement concrete 450 x 450 x 600mm, 600mm below ground level as per approved drawing clause. (iv) 800mm x 600mm rectangular

Construction of RCC Box Culvert 2/22/0 (1 nos) Earthwork in excavation of foundation for structures as per drawing and technical specification clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50m, dressing of sides and bottom and backfilling in tranches with excavated suitable material. V Marshy oil

Filling in foundation trenches as per drawing and Technical specification 305.3.9 I. sand filling

Providing concrete for plain/reinforced concrete in open foundation complete as per drawing and technical specification clause 802, 803, 1202 & 1203 B. With natural Gravel III. P Grade M20 Nominal mix (1:2:4)

Providing concrete for plain/reinforced concrete in open foundation complete as per drawing and technical specification clause 802, 803, 1202 & 1203 B. With natural Gravel IV. RCC grade M20

Supplying, fitting and placing TMT (Fe-500D) reinforcement bar (Other ISI approved TMT reinforcement bar (SAI/ BISCON/ THERMAX or equivalent) in foundation complete as per drawing and technical specification clauses 1000 and 1202

Plain/ Reinforced Cement concrete in sub-structure complete as per Drawing and Technical specification clause 802,804,805,806,807,1202 & 1204. B. With Natural Gravel iv) RCC GRADE M25 (i) Height upto 5m

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

Providing weepholes in brick masonry/ stone masonry, plain reinforced concrete abutment, wing wall, return wall with 100mm dia AC pipe extending through the full width of the structure with slop of 1(v):20(H) towards drawing face complete as pre drawing and technical specification clauses 614, 709, 1204.3.7

Backfilling behind abutment, wing wall and return wall complete as per drawing & technical specification clause 1204.3.8 I. Granular material

Providing and laying cement concrete wearing course M30 grade including reinforcement complete as per Drawing and Technical specification clauses 800 and 1206.3 A. with crushed stone

Construction of RCC railing of M25 grade in cast-in-situ with 20mm nominal size aggregate, true to line and grade, tolerance of vertical railing post not to exceed 1 in 500, center-to-centre spacing between vertical post not exceed 2000mm as per drawing and technical specification clauses 800, 900 and 1208.3

Drainage spouts complete as per drawing and technical cpecification clause 1209

Providing and laying curtain walls complete as per drawing and technical spcification clause 1304. iii. Cement concrete grade M10

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

Arjun Saha

Mwikwm Basumatary