Construction of RCC Box Culvert at No.2 Hulmagaon (Titaguri) village road under Kadomtola VCDC in Chirang District BTR, Assam under SOPD for the year 2021-22. (TN_89_1)

Amount

(A) Road Work: Construction of embankment with approved materials obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and compacted to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5 By Mechanical Means, Private Land

Construction of sub-grade and earthen shoulders with approved materials obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slopes and compacting to meet requirement of Table 300.2 with lead up to 1000 m as per Technical Specification Clause 303.01. (i) Private land

Construction of granular sub-base by providing close 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 vibratory roller to achieve the desired density, complete as per Technical Specification Cl. 401. II) For Grading-II Material.

Providing and erecting direction and place identification Retro-Reflectorised sign as per IRC:67 made of high intensity encapsulated lens type reflective sheeting vide clause 1701.2.3, fixed over aluminium sheeting, 2mm thick with area not exceeding 0.9 sqm supported on a mild steel angle iron post 75 x 75 x 6mm firmly fixed to the ground by means of properly design foundation with M-15 grade Cement concrete 450 x 450 x 600mm, 600mm below ground level as per approved drawing and technical specification clause 1701.

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

Providing and laying pitching on slopes laid over prepared filter media as per drawing and technical specifications Clause 1302 (i) Boulder

Providing and laying filter material underneath pitching in slopes complete as per drawing and technical specifications Clause 1302

Construction of cold weather Bamboo bridge overall width of 3.70m and clear road way 3m with jungle wood post 20 to 25cm dia 5 nos. each and rows being 2.1m apart except for the navigable span which should be 3m. post to be driven at least 180cm more below ground level including providing 20cm to 25cm centre to centre and placed over 20 cm dia, jungle wood dham, 15cm dia. jungle wood bracing collar fixed by bolts and nuts, straps etc. mature bholuka bamboo cross groth all closely packed and tied 75cm wide track way made of 38mm thick first class local planks fixed on 75mm x 100mm first class local wood battens 120cm apart and 3 lines of jati bamboo hozrizontal railing fixed in bhaluka bamboo posts placed at 210cm apart and white washed including all necessary bolts, nuts coir, struts, nails, etc. complete with a layer of brush to exposed portion outside track way with earth topping complete as per direction of the Department.

(B) CD Work: RCC Box Cell Culvert, Size=3.00m x 3.00m, 4 Cell, 1 No: Earth work in excavation of foundation 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 tranches with excavated suitable material. 1. Ordinary Soil i) Upto 3.00m depth.

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

PCC 1:3:6 in foundation. Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 A. With crushed stone i) P.C.C grade M 10 i) Nominal mix 1:3:6

PCC 1:2:4 in foundation. Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 A. With crushed stone i) P.C.C grade M 20 i) Nominal mix 1:2:4

Plain/reinforced cement concrete in sub-structure complete as per drawings and technical specification Clauses 802, 804, 805, 806, 807, 1202 and 1204. A. With Crushed Stone iv) R.C.C.Grade M 25 (i) Height up to 5m

Providing & Laying Reinforced cement concrete in superstructure complete as per drawings and technical specification clause 800, 1205.4 & 1205.5 A. With Crushed Stone iv) RCC grade M-25 (a) Height up to 5m

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, centre-to-centre spacing between vertical posts not to exceed 2000 mm as per drawing and technical specifications Clauses 800, 900 and 1208.3

Supplying, fitting and placing TMT reinforcement (Fe 415) in substructrue complete as per drawings and technical specification Clauses 1002, 1005, 1010 & 1202.

Supplying, fitting, and placing TMT bar reinforcement in super structure complete as per drawing and technical specifications Clauses 1002, 1010 and 1202.

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

Providing weep holes 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 A. Granular Materials.

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

Drainage spouts complete as per drawing and technical specifications Clause 1209

P.C.C. M 30 ordinary grade (1:2.5:5) levelling course below approach slab complete as per drawing and technical specifications Clauses 800 and 1211 A. With Crushed Stone. (ii) Nominal mix (1:2.5:5)

Reinforced Cement Concrete M 25 grade approach slab including reinforcement and formwork complete as per drawing and technical specifications Clauses 800 and 1211 A. With Crushed Stone.

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

Painting two coats including primer coat after filling the surface with synthetic enamel paint 1 all shades on new, plastered/concretes surfaces as per drawing and technical specifications clause 1701.

BIJIT BRAHMA

Jamidar Narzary