Maintenance of road i) Laxman Das Sarani near from Katasweola road to Indera Colony via Gitanjali Rest House end (L-0.500 km) (ii) Vidyasagar RCC Bridge (Near Shanitala) to Katasweola road (N_H Nirjal Saha) (L- 0.150 km). road under AMC ward no 3

Surface Drain 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. Surface Drains in Ordinary Soil Manual Means

Brick on edge soling Providing and laying brick on edge soling layer on prepared subgrade according to lines, grades and cross-section shown on the drawing, filling joints with sand, watering and rolling the same with three wheeled road roller 80-100 kN as per MoRD Technical Specification Clause 412.

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.

Excavation for Structures Without dewatering. Earthwork in excavation for structures as per drawing and MoRD technical specifications Clause 305.1 including setting 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. Ordinary Soil, Upto 3 m depth

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

PCC grade M-10 (1:3:6) Providing concrete for plain concrete (using jhama brick aggregate) 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) PCC grade M 10 (using jhama brick aggregate) Nominal mix 1:3:6(Hand Mixing)

RCC M-25 in Sub structure 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) R.C.C grade M-25 upto 5 m height

Brick work in Substructure 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. In 1:4 cement mortar

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

Weep holes Providing weep holes 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 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.

12 mm Plastering in substructure Plastering with cement mortar (1:4) 12 mm thick on brick work/ C.C. work including a finishing coat of neat cement punning with 2.75 kg of cement per sqm in substructure as per MoRD technical specification Clauses 613.4 & 1204.

WBM Gr-3 Providing, laying, spreading and compacting brick aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN in stages to proper grade and camber, applying and brooming, stone screening to fill up the interstices of coarse aggregate, watering and compacting to the required density 'Grading 3' as per MoRD Technical Specification Clause 405. By Manual Means

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.

Tack coat using hot straight run bitumen of grade VG-30 on W.B.M. 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 WBM @ 0.75 kg/ sqm.

20 mm 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 13.2mm to 5.6mm aggregates either using penetration grade bitumen or emulsion to required line grade and level to serve a 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 Manual means. (i) Bitumen (60/70 grade) V.G.-30.

Seal coat Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross full 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), Bitumen VG-30

Maintenance of bituminous surface road using Jhama brick aggregate Repair to pot holes by removal of failed material, trimming the sides to vertical and levelling the bottom, cleaning the same with compressed air or any appropriate method, filled with B.M (using jhama brick aggregate & bitumen of VG-30), after applying prime coat at the bottom and tack coat on sides and on bottom (using bitumen emulsion) and compacting, trimming & finishing the surface to form a smooth continuous surface, all as per MoRD technical specification Clauses 1900, 502, 503 and 504.

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