WBPW(R)D/NIT- 29 of SE/WHC-I/2025-2026/1

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 construction as per Clause 305.3.4 of Specifications for Road & Bridge Works of MoRT&H (5th Revision).

Excavation in Soil using Hydraulic Excavator CK 90 and Tippers with disposal upto 1000 metres. 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 within all lifts and lead upto 1000m as per Clause 301 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (Mode of measurement: pre works and post works)

Water Bound Macadam Sub Base Water Bound Macadam Sub Base by consolidating Jhama metal / Laterite chelly or stone metal / shingles of specific size in hard crust to requisite thickness (measured after compaction) in layers including screening of metals etc. as necessary, hand packing, sweeping, watering and rolling in stages with power roller to proper line, grade and camber, lighting, guarding & barricading and making necessary earthen bundh of one metre width on each side where necessary to protect edges and preparing the bed by necessary cutting or filling and rolling all complete including the cost of all materials and hire and labour charges of all men and machineries and compacting to the required density, as per Clause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (i) For Construction of Sub Base by consolidating Jhama metal (63 mm to 45 mm) with moorum screening : Using 0.26 m³ moorum / 1.09 m³ of Jhama metal

By Mix in Place Method : Construction of granular sub-base by providing graded material, mixing by mix in place method with Rotavator at OMC, spreading in uniform layers with Motor grader on prepared surface in proper grade and camber, compacting with vibratory roller to achieve the desired density, including lighting, guarding, barricading, including cost of all materials, machinery, tools and plants including cost of quality control complete as per Clause 401 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). Grading – III. Tentative materials required per m³ of compacted volume: 26.5 mm. aggregates @ 0.4480 m³/m³, 5.6 mm aggregates @ 0.5760 m³/m³ & sand @ 0.2560 m³/m³.

Water Bound Macadam Base Course Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening / binding materials to fill up the interstices of coarse aggregate, watering including lighting, guarding, barricading and making necessary earthen bundh of one metre width on each side and preparing the bed by necessary cutting or filling, including cost of all materials and hire and labour charges of all men and machinery and compacting to the required density, as per Clause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). Using Grading-2 Aggregate (53 mm to 22.4 mm) @ 1.21 m³/m³ and Stone Screening Type-B (11.2 mm) @ 0.24 m³/m³. Manual Means

Supplying & providing and applying primer coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 and requisite quantity on prepared surface of granular base including cleaning of road surface and spraying primer using Mechanical means including cost and carriage of bitumen emulsion and all other incidental costs of work complete as per Clause 502 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). For WBM / WMM Surface: Using Cationic Bitumen Emulsion (S.S.-I grade bulk) @ 0.85 Kg./m²

Supplying & providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). On Granular surfaces treated with primer Using Cationic Bitumen Emulsion (R.S.-I grade bulk) @ 0.275 Kg./m²

Bituminous Macadam using Mobile Hot Mix Plant (Light Duty) Supplyind & providing and laying bituminous macadam with Mobile Hot Mix Plant (Light Duty) using approved crushed aggregates of specified grading as per Table 500.7 premixed with bituminous binder, transported to site laid over a previously prepared surface at specified laying temperature by means of approved and suitable arrangements to the required grade, level and alignment and rolled with suitable power roller for break down, inter-mediate and finished rolling as per specification to achieve the desired compaction including cost and carriage of stone materials and bitumen, hire charges of machinery and equipment, cost of fuel and lubricants and wages of operational staff, quality control complete as per Specifications for Road & Bridge Works of MoRT&H (5th Revision). Excluding cost of applying tack coat using cationic bitumen emulsion (M.S.Grade packed) @ 0.25Kg./m² For Grading 2 (19 mm nominal size, 50-75 mm thick.) Tentative stone materials required per m³ of compacted volume: 22.4 mm size chips @ 0.4241 m³/m³, 13.2 mm size chips @ 0.2827 m³/m³, 11.2mm size chips @ 0.3534 m³/m³, 5.6mm size chips @ 0.2121 m³/m³, stone dust with grit @ 0.1414m³/m³ & Bulk bitumen (VG-30 bulk) @ 75.00 Kg./m³

Mastic Asphalt Supplying & providing and laying Mastic asphalt wearing course with paving grade bitumen meeting the requirements given in table 500-29 using approved coarse aggregate, fine aggregate, filler material and bitumen, prepared by using Mastic cooker including cost and carriage of all ingredients, cost of heating aggregates and binder, mixing in specified proportions conforming to approved Job Mix Formula and laid to required level and slope after cleaning the surface, compacting, sealing the construction joints and surface finishing conforming to specifications including providing antiskid surface with bitumen pre-coated fine-grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005 cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces not less than 100°C, protruding 1 mm to 4 mm over mastic surface, including the hire charges of all tools and plants and machinery, pay of operators, cost of fuel and lubricants and all other incidental charges and quality control all complete as per Clause 516 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). 25 mm thickness Tentative materials required per m² area: 13.2mm size chips @ 0.0005 m³/m², 11.2mm size chips @ 0.0079 m³/m², 5.6mm size chips @ 0.0079 m³/m², Medium sand/Stone dust with grit @ 0.0111 m³/m², bitumen (VG-30/40 bulk) @ 0.0143 Kg./m², bitumen (10/20 grade packed) @ 5.71 Kg./m² & Lime stone powder @ 10.29 Kg./m².

GST @ 18% on Item no 1.00 to 1.14

Labour Welfare Cess @ 1% on Item no 1.00 to 2.00