MAINTENANCE OF ROAD FROM POANGBARI OLD PANCHAYAT OFFICE TO BARUA CHOWMUHANI ROAD VIA LOKNATH ASHRAM WITHIN NALCHAR BLOCK UNDER NALCHAR ASSEMBLY CONSTITUENCY (L 1.30 km) DURING THE YEAR 2025 26

Clearing Grass and Removal of Rubbish Clearing grass and removal of rubbish up to a distance of 30 m outside the periphery of the area as per MoRD Technical Specification Clause 201. By Manual means

Excavation in Soil using Hydraulic Excavator and Tippers with disposal upto 1000 m Excavation for roadwork in soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes in accordance with requirements of lines, grades and cross-sections and transporting to the embankment location with all lifts and lead upto 1000 m as per MoRD Technical Specification Clause 302.3.

Compacting original ground supporting subgrade Loosening of the ground upto a level of 300 mm below the subgrade level, watered, graded and compacted in layers to meet requirement of tables 300.1 and 300.2 for subgrade constructin as per MoRD Technical Specification Clause 303.5.2

Granular Sub-base with Well Graded Material (Table 400.1) using Jhama Brick Aggregate (A) 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. (i) For Grading - I Material (jhama brick aggreate)

Flat Brick soling Providing and laying flat brick soling layer on prepared subgrade according to lines, grades and cross-section shown on the drawing, filling joints with Earth, free from clay with a Plasticity Index not exceeding 6, watering and rolling the same with three wheeled road roller 80-100 kN as per MoRD Technical Specification Clause 412.

WBM Grading - 2. 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- 2 as per MoRD Technical Specification Clause 405. (A) By Manual Means

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.

Prime Coat i) Low porosity 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 0.70- 1.00 kg/sqm using mechanical means as per MoRD Technical Specification Clause 502.

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 granular surface treated with primer & cleaned with Hydraulic broom as per MoRD Technical Specification Clause 503.

25 mm thick Open-Graded Premix Carpet using Bituminous (Viscosity grade/ modified bitumen) Binder Providing, laying and rolling of open-graded premix carpet of 25 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 - II By Mechanical Means (I) Bitumen of VG-30

Seal Coat:- Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A or Type B or Type C or Type D as per MoRD Technical Specification Clause 510. A. By Manual Means. Case - IV : Type D (premix with fine sand). (I) Bitumen of VG-30

Maintenance of Earhen shoulder (stripping of excess soil):- Stripping excess soil from the shoulder surface to achieve the approved level and compacting with plate compactor at OMC as per drawing and MoRD technical specification Clause 1903.

Single bamboo palasiding/ walling of whole 2nd class bamboo (Jati or Bethua) 65 to 75 mm dia and closely packed & driven @ 150 mm c/c including fitting fixing with half bamboo kamis horizontally in three rows with cane or tying with wire complete and struts 1.5 m apart longitudinally and providing bitumen drum sheet walling fixed with nails as per drawing and MoRD technical specification Clause 1302.5. A) Driven at least 900 mm below ground and 1200 mm above ground on average

Providing and placing gunny/ polythene (of minimum wall thickness of 500 micron) bags filled with sand (of minmum qty of 0.034 cum) and properly manually stitched to avoid any leakage of sand as per specification.

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.

Construction of unlined surface drains of average cross-sectional area 0.40 sqm in ordinary soil to specified lines, grades, levels and dimensions. Excavated material to be used in embankment with a lift upto 3 m and lead of 50 m (average lead 25 m) as per MoRD Technical Specification Clause 307. Manual Means

Excavation for Structures A.Without dewatering. Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 including setting out, dewatering, construction of shoring, shuttering & bracing, removal of stumps & other deleterious material and disposal upto a lead of 50m, dressing of sides & bottom and backfilling in trenches with excavated suitable material. i) ordinary soil upto 3 mtr depth.

Filling in foundation trenches as per drawing & MoRD technical specification Clause 305.3.9, 1200. I. Sand Filling.

Providing concrete for plain concrete (Using Jhama Brick aggregate) in open foundations complete including formwork as per drawings & Mord Technical Specification Clause 802, 803, 900,1202 and 1203 ( including centering , Shuttering , staging etc. but excluding reinforcement) I.P.C.C Grade M10( Using Jhama Brick Aggregate ) I. Nominal Mix 1:3:6

Plain/Reinforced cement concrete in substructure complete including formwork as per drawings & MORD technical specification Clauses 802,804,805,806,807,900,1202 & 1204 ( including centering, shuttering, staging etc. but excluding reinforcement ) I. RCC Grade M25 i) upto 5 m height

Supplying, Fitting & placing Thermo - Mechanically Treated Bar / Cold twisted deformed steel bar in substructure complete as per drawing & MoRD Technical Specification Clause 1002, 1005, 1010, and 1202.

Providing and laying reinforced cement concrete in superstructure as per drawings & MORD technical specification Clauses 800,900,1205.4 & 1205.5 ( including centering, shuttering, staging etc. but excluding reinforcement ) II. R.C.C M25 1. 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 Specification Clause 1002, 1005, 1010, and 1202.

Road Side Pucca Drains: Construction of road side pucca drain with M10 (1:3:6 with jhama brick aggregate) to specified lines, grades, levels and dimensions as per approved design and MoRD Technical Specification Clause 307, 1606. Excavated material to be used in embankment at site. (including centering, shuttering, etc. but excluding reinforcement). B. Trapezoidal drain (top clear width 600 mm, bottom clear width 300 mm and clear depth of 400 mm). I. In Ordinary Soil

Providing Weepholes in Brick masonry / stone masonry, plain / reinforced concrete abutment, wing wall, return wall with 100 mm dia AC pipe or uPVC pipe (110 mm OD of 6.0 kg/cm2 pressure ) extending through the full width of the structure with slope of 1(V) : 20(H) towards drowing face complete as per drawing and MORD Technical Specificaton Clause 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.

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