Renovation of Road from Runikhata Boro Girls High School to Dantak Road by providing WBM, ICBP including cross drainage works of the road in Chirang District under BTR for the year 2021-22. (TN_89_2)

Amount

(A) Road Work: 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 materials to be used or auctioned, up to 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 (i) Private Land

Construction of sub-grade 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 up to 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) For Grading II Material.

WBM Grading 3 Using stone screening Type-B 11.2 mm for Gr.III Providing, laying, spreading and compacting stone aggregates of specific size to WBM specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN in stages to proper grade and camber applying and brooming, stone 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 Mnaul Means.

Providing and laying interlocking concrete block pavement (M30) having thickness 80mm as per echnical specification clause 1504 complete including carriage. (a) Including Edge block/Edge restraints.

Semi Reflective Traffic Signs. I. Providing and fixing of semi reflective cautionary, mandatory and informatory sign board as per IRC:67 made of 1.5 mm thick MS sheet duly stove white colour in front and gray colour on back with red reflective border of 65 mm 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 x 47mm x 12 SWG sheet tube firmly fixed to the ground by mean of properly designed foundations with M-15 grade cement concrete 450 x 450 x 600 mm, 600 mm below ground level as per approved drawing Clause 1701.2.2 (V) 600 mm x 450mm rectangular.

Retro-reflectorised Traffic Signs. (i) Providing and erecting direction and place identification retro-reflectorised signs as per IRC:67 made of encapsulated lens type reflected sheeting vide clause 1701.2.3 fixed over aluminium sheeting, 2 mm thick with area exceeding 0.9 sqm suported on mild steel angle iron Posts 75 mm x 75mm x 6 mm, 2 Nos. firmly fixed to the ground by means of properly designed foundation with M-15 grade cement concrete 450 mm x 450 mm x 600 mm, 600 mm below ground level as per approved drawing and Technical Specification Clause 1701.

(B) CD Work: (Box/Slab/HP Culverts etc): 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

Providing and laying reinforced cement concrete pipe NP3 for culverts on first class bedding of granular material in single row including fixing collar with cement mortar 1:2 but excluding excavation, protection works, backfilling, concrete and masonry works in head walls and parapets Clause 1106. 1000 mm dia.

Plain Cement Concrete M10 (1:3:6 nominal mix) in levelling course below open foundation of Head walls as per drawings & Technical Specification Clause 1109

(A) Type A (Concrete Cradle) Bedding (i) Laying concrete cradle bedding with M15 Grade Cement Concrete as per Clause 1105 (i)

Brick Masonry Work in cement mortar in foundation complete exculding pointing and plastering as per drawing and technical specification Clause 600, 1202 & 1203. ii) Brick Masonary in 1:4 cement mortar.

Plastering with Cement Mortar (1:4), 15 mm thick on brickwork in substructure as per technical specification Clause 613.4 & 1204

PHUNGKHA BORGOYARY

PREMJIT BORO