Maintenance of Road from Damcherra Khedacherra Road to Lalmohan Para from CH.0.00KM to CH.1.01KM Total Length 1.01KM under Damcherra Sub Division, PWD R and B during the year 2025 2026 SH WBM III, Re Carpeting, Seal coating,Surface Drain,Pucca drai

Clearing and Grubbing Road Land 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 MoRD Technical Specification clause 201. By Manual Means In area of non-thorny jungle

Surface Drains Construction of unlined surface drains of average crosssectional 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. (i) Surface Drains in Ordinary Soil (A) Manual Means

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

Maintenance of Earthen 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.

Maintenance of bituminous surface road Repair to pot holes by removal of failed material,trimming the sides to vertical and levelling thebottom, cleaning the same with compressed air or any appropriate method, filled with 75 mm B.M, after applying bitumen emulsion prime coat at the bottom and bitumen emulsion tack coat on sides and on bottom as per MoRD technical specification Clauses 1900, 502, 503 and 504.

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

Tack Coat Providing and applying tack coat using hot straight run bitumen of grade VG-30, including heating the bitumen, spraying the bitumen, cleaning and preparing the existing road surface as per specifications: On W.B.M. @ 0.75 kg/ sqm

Tack coat using hot straight run bitumen of grade VG-30 on bituminous surface Providing and applying tack coat using hot straight run bitumen of grade VG-30, including heating the bitumen, spraying the bitumen, cleaning and preparing the existing road surface as per specifications: On bituminous surface @ 0.50 Kg/ Sqm.

20 mm thick Open-Graded Premix Carpet using Bituminous (viscocity 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 viscocity 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 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