Improvement of Road from Bhalukmari Bazar to Bonargaon Dotma PWD Road via Bongshigaon village by providing SDBC for State Govt. Goodwill Project under SOPD(G) for the year 2020-21. (Ch. 0.00m to 1620.00m), Kokrajhar East LAC

Amount

Construction of Sub grade and earthen shoulders with approved material obtained from borrow pits with all lift and leads, transporting to site, spreading grading to required slope and compacted to meet requirement of Table 300.2 with lead up to 1000m as per Technical Specification Clause 300.1 (I) Private land.

WBM Grading 3-Using stone screening Type-B 11.2 mm for Gr.III: Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam 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 2 as per Technical Specification Clause 405. (A) By mannual means

Providing and applying primer coat with Bitumen emulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.90- 1.2 kg/sqm using mechanical means as per Technical Specification Clause 502 medium porosity.

Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared dry and hungry bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503.

Semi - Dense Bituminous Concrete (Providing and laying semi dense bituminous concrete with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.5 to 5% of mix and filler transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the reqd. grade, lavel and alignment,rolling with smooth wheeled,vibratory and tandem rollers to achieve the desired compaction as per MoSRT&H cl. no.508. complete in all respect. A.with a hydrated lime/cement as filler (refer table 500-9 of MoSRT&H Specification (ii) with 60/70 or VG grade bitumen for grading II (10mm nominal size)

Providing and laying of seal coat sealing the voids in the bituminous surface laid to the specified levels grade and cross falls using type A,B, and C asper technical specification clause 510 A by manual means

Reinforced cement concrete M15 grade kilometre stone/local stone of standard design as per IRC:8 fixing in position including painting and printing, etc. as per drawing and Technical Specification Clause 1703. (ii) Ordinary kilometre Stone (Precast)

Reinforced cement concrete M15 grade kilometre stone/local stone of standard design as per IRC:8 fixing in position including painting and printing, etc. as per drawing and Technical Specification Clause 1703. (ii) 200m Stone (precast)

(A)Retro-Reflectorised Traffic signs Providing and fixing of retro-reflectorised cautionary, mandatory and informatory sign as per IRC:67 made of encapsulated lens type reflective sheeting vide Clause 1701.2.3 fixed over aluminium sheeting, 1.5 mm thick supported on GL pipe 50mm dia firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 450 mm x 450 mm x 600 mm, 600 mm below ground level as per drawings and Technical Specification Clause 801 (iv) 60cm x 65cm rectangular

(B) Semi Reflective Traffic signs Providing and fixing of Semi Reflective cautionary, mandatory and informatory sign as per IRC:67 made of 1.5 mm thick MS sheet duly stove white coloured in front and gray coloured 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 of RR of required shade and coloured supported and welded on 47mm x47mm 12SWG sheet tube firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 450 mm x 450 mm x 600 mm, 600 mm below ground level as per drawings and Technical Specification Clause 1701.2.2 (ii) 60cm equilateral tringle

Painting lines dashes arrows,etc on roads in two coats on new work with ready mixed road marking paint comforming IS :64 on bituminous/concrete surface including cleaning the surface of all dirt dust and other foreign matter demarcation at site and traffic control as per drawing and technical specification clause 1702

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 three year.

Umesh Basumatary

DHANANJAY BASUMATARY