Development of road from Sonamura Melaghar road to Balurghat via Charu Kabiraj(L700m) under the jurisdiction of Sonamura SubDivision PWD (RandB) during the year 2026 2027 SHGrouting GSB Paver Block Carpeting Drain

Patch repairing/Maintenance of bituminous surface road using Jhama brick aggregate & Viscosity Graded bitumen (VG-30) Repairing pot holes and making up small depressions with ramming or power rolling after removal / disposal of disintegrated materials within a lead of 50 m, cutting pot holes to regular shapes with vertical edges and levelling the bottom, cleaning the same with compressed air or any appropriate method including screening, cleaning of aggregates; annd filling up with jhama chips using bitumen of VG-30 @ 54 Kg per cum of loose volume of jhama brick chips, after applying tack coat of bitumen on sides and bottom @ 0.75 kg/sqm and finishing the top of required surface levelled with adjoining area in proper grade and camber including spreading of sand @ 0.006 cum/sqm of prepared road surface as per direction of the Engineer-in-charge and all as per MoRD technical specification Clauses 1900,502,503,504.

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.

Tack coat using hot straight run bitumen of grade VG30 on WBM Providing and applying tack coat using hot straight run bitumen of grade VG30 including heating the bitumen , spraying the bitumen, cleaning and preparing the existing road surface the existing road surface as per specification on WBM @ 0.75 kg / sqm

Tack coat using hot straight run bitumen of grade VG30 on Bituminous surface Providing and applying tack coat using hot straight run bitumen of grade VG30 including heating the bitumen , spraying the bitumen, cleaning and preparing the existing road surface the existing road surface as per specification on Bituminous surface @ 0.50 kg / sqm

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 penetration 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 (60/70 Grade)VG-30

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 (60/70 Grade)VG-30

Excavation for Earthwork in excavation for structures as per drawing and MoRD technical specifications Clause 305.1 includingsetting out, construction of shoring & bracing, removal of stumps & other deleterious material and disposal upto a lead of 50 m, dressing of sides & bottom and backfilling in trenches with excavated suitable material. Upto 3 m depth

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

Providing concrete for plain/reinforced concrete in open & foundations complete including formwork as per drawings & MoRD technical specifications pecifications Clauses 802 Clauses 802,803, 900,1202 and 1203. (including centering, shuttering, staging etc. but excluding reinforcement). I. P.C.C grade M 10 (ii) Nominal mix 1:3:6(Hand Mixing)

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). iii) PCC grade M20, Nominal Mix (1:2:4)