Construction of RCC Boxcell (4.00 m X 4.00m) at ch. 0.750 km over local cherra on the road from Kalcherra to Manirambari via Gagan Ch. Para (L-5.175 km) under Satchand Block SH-Construction of Boxcell (4m X 4m), wing wall etc. during the year 2025-26

Excavation for Structures B..With dewatering. Earthwork in excavation for structures as per drawing and MoRD technical specification Clause 305.1 including setting out, construction of shoring & braching, removal of stumps and other deleterious materials and disposal upto a lead of 50 m, dressing of sides & bottom and backfilling in trenches with excavated suitable material. I) Ordinary soil (I) Up to 3.00 m depth

Filling in foundation trenches as per drawing & MORD Technical Specification Clause 305,3.9,1200. 1) Sand filling

Providing concrete for Plain concrete (using Jhama brick aggregate) in open foundations complete including form work as per drawings & MORD Technical Specifications clauses 802,803,900,1202 and 1203(including centering and shuttering staging etc. but excluding reinforcement) I. P.C.C. grade M10 (using Jhama Brick aggregate) (i) Nominal mix 1:3:6

Providing concrete for plain/reinforced concrete in open foundations complete including formwork as per drawings & MoRD technical specifications Clauses 802, 803, 900, 1202 and 1203. (including centering, shuttering, staging etc. but excluding reinforcement). V. R.C.C grade M-25.

Supplying, fitting & placing Thermo-Mechanically treated bar/ Cold twisted deformed steel bar reinforcement in foundation complete as per drawings & MoRD technical specifications Clauses 1000 & 1202.

Plain/ reinforcement cement concrete in substructure complete including formwork as per drawing & MoRD technical specifications Clauses 802,804, 805,806,807, 900,1202 & 1204. (including centring, shuttering, staging etc. but excluding reinforcement). VI. RCC grade M 25 i) upto 5 m height

Supplying fitting & placing Thermo Mechanically Treated bar/Cold Twisted deformed bar reinforcement in Substructure complete as per drawings & MoRD technical specification Clauses 1000, 1005, 1010 & 1202.

Providing & laying reinforced cement concrete in superstructure as per drawings & MoRD technical specifications Clauses 800, 900, 1205.4 & 1205.5 (including centering, shuttering, staging etc. but excluding reinforcement). ii) R.C.C grade M-25 a) For height upto 5 m

Supplying, fitting, & placing Thermo-Mechanically treated bar/ Cold twisted deformed steel bar reinforcement in superstructure complete as per drawing & MoRD technical specifications Clauses 1002, 1010 & 1202.

Construction of R.C.C railing of M 25 grade in cast-in-situ with 20 mm nominal size aggregate, true to line & grade, tolerance of vertical railing post not to exceed 1 in 500, centre-to-centre spacing between vertical posts not to exceed 2000 mm including reinforcement as per drawing and MoRD technical specifications Clauses 800, 900 and 1208.3 (including centering, shuttering, staging etc. and reinforcement).

Providing weepholes in brick masonry / stone masonry, plain/ reinforced concrete abutment, wing wall, return wall with 100 mm dia AC pipe or PVC pipe ( 110 mm OD of 6.0 Kg/cm2 ptressure ) extending through the full width of the structures with slope of 1(V):20(H) towards drawing face complete as per drawing and MoRD technical specification clauses 614, 709, 1204.3.7

Providing & laying filter media with jhama brick aggregates as per specification to a thickness of not less than 600 mm with smaller size towards the soil & bigger size towards the wall & providing over the entire surface behind abutment, wing wall, return wall to the full height, compacted to firm condition complete as per drawing and MoRD technical specification clause 1204.3.8.

Brick masorny work in cement mortar in foundation completed excluding pointing & plastering as per drawing & MoRD technical specifications Clauses 600, 1202 & 1203. ii) Brick masonry in 1:4 cement mortar

Brick masonry work in cement mortar in substructure complete excepting pointing & plastering, as per drawing & MoRD technical specification Clauses 602, 603, 604,1202 and 1204. (II) In 1:4 cement mortar.

Providing PCC M 20 (with jhama brick agreegate) aechitectural coping on the top of wing wall, return wall etc. complete including formwork as per drawing & MoRD technical specification clauses 615, 710 & 1204.3.11.

Providing and fixing in position Drainage soputs complete as per drawing & MoRD technical specifications Clause 1209.

Construction of Embankment with Material Obtained from Borrow Pits. 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 MoRD Technical Specification Clause 301.5.

Granular Sub-base with Well Graded Material (Table 400.1 ) using Jhama Brick Aggregate.By Mix in Place Method.Construction of granular sub-base by providing well graded material ( Jhama Brick Aggregate , Grading-I as per Table 400.1, spreading in uniform layers with tractor with attachments on prepared surface, mixing by mix in place method with rotavator at OMC, applying and brooming sand to fill up the interstices of coarse aggregate, watering and compacting with smooth wheel roller to achieve the desired density, complete as per MoRD Technical Specification Clause 401. 1) For Grading I Material (jhama brick aggregate).

Water Bound Macadarm Sub-Base / Base using Jhama Brick Aggragate 2) WBM Grading 3. Providing, laying, spreading and compacting jhama brick aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing rolling with three wheel roller 80-100 KN in stages to proper grade and camber, applying and brooming binding materials to fill up the interstices of coarse aggregate, watering and compacting to the required density Grading- 3 as per MoRD Technical Specification Clause 405. (A) By Manual Means

Prime Coat (i) Low porosity Providing and applying prime coat with bitumen emulsion(SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70- 1.00 kg/sqm using mechanical means as per MoRD Technical Specification Caluses 502.

Tack coat: (iii) Providing and applying track coat with bitumen emulsion (RS-1) using emulsion dustributor at the rate of 0.25 to 0.30 kg per sqm on the prepared granular surface treated with primer & cleaned with Hydraulic broom as per MoRD Technical Specification Clause 503.

20mm thick Open-Graded Premix Carpet using Bituminous (viscosity grade/ modified bitumen) Binder. Providing, laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using viscosity grade bitumen or emulsion to required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a three wheel 80 - 100 KN static roller capacity, finished to required level and grades to be followed by seal coat of either Type A or Type B or Type C or Type D as per MoRD Technical Specification Clause 508. Case - I By Manual Means (I) Bitumen of VG-30

Seal Coat Providing & laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade & cross fall using type A or B type C or D as per MoRD technical specification clauses 510. 1) By Manual Means. Case-iv : Type D ( Premix with fine sand ) ii) Bitumen of VG-30

Construction of Toe walls for protection of slopes as per Drawing and MoRD technical specification Clauses 1302.5 (including centering, shuttering, staging etcf. But excluding reinforcement). II) Cement Concrete Grade M10 in case of Concrete block pitching. i) Nominal Mix 1:3:6

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