Improvement of road by providing ICBP from Gossaigaon Sapatgram road to Bamunigaon

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 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 (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 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 stone aggregates to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 KN in stages to poper grade and camber, applying and brooming, stone screening/binding materials 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 (M40) having thickness 80mm as per technical specification clause 1504 (Inclusive of Edge restraint and carriage).

Planting of Trees and their Maintenance for three years (Planting of trees by the road side (Avenue trees) in 0.60m dia holes, 1 m deep dug in the ground mixing the soil with decayed from yard/sludge mannure, planting the saplings, backfilling the tranches watering fixing the tree guatrd and maintaining the plants for three year.

Providing and fixing of retro reflectorised cautionary, mandatory and informatory sign as per IRC: 67 made of high intensity encapsulated lens type reflective sheeting vide clause 1701.2.3, fixed over aluminium sheeting 1.5mm thick supported on a mild steel angle iron post 75mm x 75mm x 6mm firmly fixed to the ground by means of properly designed foundation with M-15 grade cement concrete 450mm x 450mm x600mm, 600mm below ground level as per approved drawings and Technical Specification Clause 801. (iv) 800mm x 600mm rectangular.

Providing and supplying dustbins for collection of garbase

(B) CD Work: RCC Box Cell Bridge, Size=3.00m x 3.00m, 2 Cell, 1 No. Earth work in excavation for structures as per drawings and technical specifications Clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal up to a lead of 50m, dressing of sides and bottom and backfilling in trenches with excavated suitable material. V. Marshy Soil

Fillling in foundation trenches as per drawing and technical specification 305.3.9 i) Sand filling

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 M 20 i) Nominal mix 1:2:4

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 M 20

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

Plain/Reinforced cement concrete in sub-structure complete as per drawing and technical specification Clauses 802, 804, 805, 806, 807, 1202 ans 1204. B. With Natural Gravel (iv) RCC GRADE M 25 (i) Heigth up to 5m

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

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 Clause 614, 709, 1204.3.7.

Back filling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 I. Granular Materials

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

Construction of R.C.C. railing of M 25 grade, 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, centre-to-centre spacing between vertical posts not to exceed 2000 mm as per drawing and technical specifications Clauses 800, 900 and 1208.3

Drainage spouts complete as per drawing and technical specifications Clause 1209

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

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

Bakul Chandra Brahma

Ajit Narzary