STMC for 35.607 km from km 71.00 to km 106.607 of NH_512 under N.H. Division No. VII P W Roads Directorate in The District of Dakshin Dinajpur during the year 2025_2026

Road Maintenance (Bill No. 1) Removal of rank vegetation/weeds and undesirable vegetation from shoulders, embankment slopes upto ROW (both sides) complete in all respects including breaking of clods, rough dressing and disposal of waste material and vegetation at a place outside ROW as per direction of Engineer-In-Charge and as per Maintenance Standards Clause 3.3 (Frequency will be once in a quarter). a) Shoulders including side slopes of embankment up to toe line on both sides of the carriageway. (Frequency of cleaning will be four times in a year; however limited to only areas prone to growth of rank/undesirable vegetation and weeds).

Clearing longitudinal and transverse covered drains and pipe drains including manholes, gratings, channels and gullies etc. and bringing them to original drainage capacity, including disposal of sediments, extraneous debris and vegetation growth blocking the free flow from site outside ROW with all leads and lifts complete in all respects as directed by the Engineer and as per Maintenance Standards Clause no. 3.1. The job also includes removing and refixing of precast slab in original position, (Freqnency of cleaning will be as per site requirement however limited to twice in a year).

Providing spot reconditioning, reconstruction and regravelling to repair specific erosion or other damages for restoring the eroded area to originally constructed cross section on cuts and fills slopes/shoulders conforming to Technical Specifications Clause no. 3002. Fill material should be brought from borrow areas located outside ROW conforming to Technical Specification no. 305. Watered and well compacted with plate compactor or power rammer with all leads and lifts as directed by the Engineer (Quantity of compacted Fill material to be measured on cross sectional area basis)

Providing, laying and compacting Wet Mix Macadam (WMM) base course with approved materials complete as per Technical Specifications Clause no. 406 of MoRTH

Prime Coat on WMM Surface by SS1 Cationic emulsion @ 0.85kg/sqm

Providing, laying and compacting Dense Graded Bituminous Macadam complete as per technical Specification Clause no. 505 including tack coat as per Technical Specifications Clause no.503.

Tack Coat on WMM Surface by RS1 Cationic emulsion @ 0.275kg/sqm

Providing, laying and compacting Bituminous Concrete as per technical Specification Clause no. 507 including tack coat as per Technical Specifications Clause no. 503.

Tack Coat on bituminous surface using RS1 Cationic emulsion @ 0.250kg /sqm.

Clearing slab/box type culverts and pipe culverts including clearing, cleaning and reshaping of upstream and down stream faces of these culverts within right of way. The job includes disposal of excess material recovered from site including vegetation outside ROW with all leads and lifts complete in all respects as per direction of Engineer-in-Charge. and as per Maintenance Standards Clause 3.1 (Frequency of cleaning will be one time in a year i.e. before start of monsoon). b) Pipe Culverts

Clearing slab/box type culverts and pipe culverts including clearing, cleaning and reshaping of upstream and down stream faces of these culverts within right of way. The job includes disposal of excess material recovered from site including vegetation outside ROW with all leads and lifts complete in all respects as per direction of Engineer-in-Charge. and as per Maintenance Standards Clause 3.1 (Frequency of cleaning will be one time in a year i.e. before start of monsoon). a) Slab/Box Type Culverts

Bill No. 2 : ROAD PROPERTY MAINTENANCE Providing and marking of hot applied thermoplastic compound 2.5 mm thick including reflectorising glass beads @ 250 gms/sqm area, thickness of 2.5 mm is exclusive of surface applied glass beads as per IRC:35. The finished Surface to be level, uniform and free from streaks and holes complete in all respects. The job includes marking of centre line, shoulder line, edge line, zebra crossing marking, arrows and dashes marking at the junctions as per Technical Specifications Clause 803.4 complete in all respect and as per approval of the Engineer-in-Charge.

Cats Eye/Pavement Marker (NMC nail Less):- Made out of Acrylic-strene-Acrylonitril or Hi-Impect polysterene fitted with Moulded of Methacrylate (NMC) reflector cube corner reflector design; Filled with tightly adhering potting compound as per ASTM D788 size 11.5 cm X 7cm X 1.6 cm or 10 cm X 10 cm X 1.75 cm provided with bituminous adhesive in sufficient quantity with each unit for fixing. No nail should be allowed for fixing.

Replacement of stolen/missing retro-reflectorised traffic sign boards by providing and fixing new retroreflectorised cautionary, mandatory and informatory sign as per ASTM D 4956-04 made of High intensity grade Microprismatic sheeting Type-IV, fixed over aluminium sheeting 2.0 mm thick supported on a MS Angle Iron Frame comprising of 40 mm X 40 mm X 4 mm. This frame is further welded to MS Angle 75 mm X 75 mm X 6 mm size, 3.5 meter high vertical post complete as per drawing. This vertical post shall be embeded in M-15 grade cement concrete in a pit of size 450 mm X 450 mm X 600 mm, 600 mm below ground level complete in all respects as per direction of the Engineer. b) Cautionary/Warning sign i) Triangular 900 mm side

c) Mandatory/Regulatory sign ii) 600 mm dia Circular sign

a) Informatory Sign iii) Facility information Sign 800 mm x 600 mm

c) Mandatory/Regulatory sign i) Octagonal “STOP” sign

Replacement of stolen/missing retro-reflectorised traffic sign boards by providing and fixing new retroreflectorised cautionary, mandatory and informatory sign as per ASTM D 4956-04 made of High intensity grade Microprismatic sheeting Type-IV, fixed over aluminium sheeting 2.0 mm thick supported on a MS Angle Iron Frame comprising of 40 mm X 40 mm X 4 mm. This frame is further welded to MS Angle 75 mm X 75 mm X 6 mm size, 3.5 meter high vertical post complete as per drawing. This vertical post shall be embeded in M-15 grade cement concrete in a pit of size 450 mm X 450 mm X 600 mm, 600 mm below ground level complete in all respects as per direction of the Engineer. ii) Advance Direction, Destination, Reassurance and place identification sign (size 2100 mm X 1700 mm) as per drawing with two vertical posts embeded in M-15 cement concrete details as per description given above and as per drawing.

ii) Advance Direction, Destination, Reassurance and place identification sign (size 2100 mm X 1700 mm) as per drawing with two vertical posts embeded in M-15 cement concrete details as per description given above and as per drawing.

Painting all types of M.S/GI railing as and when required with two coats of synthetic enamel paint of approved brand after cleaning the surface complete in all respects as directed by the Engineer. a) On existing Railing

PERFORMANCE BASED INCIDENT MANAGEMENT & PAVEMENT REPAIR (Bill No. 3) Providing treatment and repair to pot holes/ruts of any depth/patch repair of all types of bitumen pavement complete as per Technical Specification Clause 3004.2, and as per direction of Engineer by using paving grade bitumen/emulsion/cold ready mix material. The job includes removal of all failed material, trimming of completed excavation to provide firm vertical faces, cleaning of surface, painting of tack coat on the sides and base of excavation as per Clause no. 503, back filling the patch with bituminous material as per Clause no. 509. Compacting trimming and finishing the surface to form a smooth continuous surface all as per Clause no. 3004.2 of Technical Specifications.

Tack Coat on bituminous surface using RS1 Cationic emulsion @ 0.250kg /sqm.

GST @18% of Total Amount from Item No. 1 to 22

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