Providing RCC drain, protection works and road furnitures along various sretches and restoiration of dmaged road formation in the state of Sikkim under Road Safety Annual Plan 2022-23.

Amount

Labour engaged for dismantling of existing drain, stacking of materials and throwing of spoils to suitable dumpsite.

Plain/Reinforced cement concrete in open foundation complete as per drawing and technical specifications (PCC Grade M15) inclusive of Carriage

Provide M25 plain /reinforced cement concrete levelling course in catch pit complete as per Drawings and Technical Specification Clause 1500,1700 & 2100.inclusive of Carriage

Supplying, fitting and placing HYSD bar reinforcement in sub-structure complete as per drawing and technical specifications ,including carriage and haulage all complete inclusive of Carriage

Providing weep holes in Brick masonry/Plain/Reinforced concrete abutment, wing wall/return wall with 100 mm dia AC pipe, extending through the full width of the structure with slope of 1V :20H towards drawing foce. Complete as per drawing and Technical specifications.

Excavation for Structures (Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom, backfilling the excavation earth to the extent required and utilising the remaining earth locally for road work.)

Stone masonry work in cement mortar for substructure complete as per drawing and Technical Specifications,Random Rubble Masonry in cement mortar 1:3 inclusive of carrriage

Dismantling of Structures (Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres)Dismantling boulders laid in wire crates including opening of crates and stacking dismantled materials.inclusive of carriage

Filter Media behind the abutment, wing wall and return walls complete as per drawing and Technical specification(Granular Material)inclusive of carriage

Filling for roads works, Filling by supplying filling materials from out side in road works, in layer not exceeding 20cm in depth excluding carriage of material and including consolidation of each layer by ramming, watering including carriage and haulage etc all Backfilling behind the abutment, wing wall and return walls complete as per drawing and Technical specification(Granular Material) inclusive of carriage

Providing box drain of 60 cm (ht) x 45 cm (width) of internal dimension with 1:2:4 Plum concrete (40mm & down) side wall thickness of 23 cm (hill side) and 30 cm (road side) with1:3:6 (20 mm & down) base concrete of thickness of 15 cm with standard specification over 15 cm stone soling including providing & laying guard stones, complete as per the direction of the Engineer-in-Charge.inclusive of carriage

Scarfying existing bituminous surface to a depth of 60 mm by mechenical means ( Scarfying the existing bituminous road surface to a depth of 50mm and disposal of scarified material with in all lifts and lead upto 1000 meters)

Construction of Granular Sub Base by providing he material, mixing in a mechanical mix plant at OMC, carriage of mixed material o work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory roller to achieve the desired density, including carriage of material and haulage etc.complete as per clause 401

(i) For Grading I Material.

(ii) For Grading III Material.

Providing, Laying, Spreading and compacing graded stone aggregate to wet mix macadam specification including premixing the material with water at OMC in mechanical mix plant carriage of mixed material by tipper to site, laying in uniform layers with paver in sub-base/ base course on well prepared surface and compacing with vibratory roller to achieve the desired density including carriage of material and haulage etc.

Prime coat (Providing and applying primer coat with bitumen emulsion on prepared surface of granular Base including clearing of road surface and spraying primer at the rate shown in 500-1 using mechanical means.)including carriage of material and haulage etc.

Tack coat (Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at required rate on the prepared bituminous/granular surface cleaned with mechanical broom.)including carriage of material and haulage etc.

Granular Surface Treated with Primer

Normal Bituminous Surface

Dense Graded Bituminous Macadam (Providing and laying dense bituminous macadam with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0 to 4.5% by weight of total mix of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH specification clause No. 507 complete in all respects.)including carriage of material and haulage etc.

Bituminous Concrete (Providing and laying bituminous concrete with 100-120 TPH batch type hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 5.4 to 5.6 % of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORTH specification clause No. 509 complete in all respects)including carriage of material and haulage etc.

Road Marking with Hot Applied Thermoplastic Compound with Reflectorising Glass Beads on Bituminous Surface (Providing and laying of hot applied thermoplastic compound 2.5 mm thick including reflectorising glass beads @ 250 gms per 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.)

Road Markers/Road Stud with Lense Reflector (Providing and fixing of road stud 100x 100 mm, die cast in aluminium, resistant to corrosive effect of salt and grit, fitted with lense reflectors, installed in concrete or asphaltic surface by drilling hole 30 mm upto a depth of 60 mm and bedded in a suitable bituminous grout or epoxy mortar, all as per BS 873 part 4:1973)

Type - A, "W" : Metal Beam Crash Barrier (Providing and erecting a "W" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 70 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2 m centre to centre, 1.8 m high, 1.1 m below ground/road level, all steel parts and fitments to be galvanised by hot dip process, all fittings to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a spacer of channel section 150 x 75 x 5 mm, 330 mm long complete as per clause 810)

Retro- reflectorised Traffic signs (Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of encapsulated lens type reflective sheeting vide clause 801.3, fixed over aluminium sheeting, 1.5 mm thick supported on a mild steel angle iron post 75 mm x 75 mm x 6 mm firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 45 cm x 45 cm x 60 cm, 60 cm below ground level as per approved drawing) (Object Hazard Marker)

60 cm equilateral triangle

60 cm circular

80 mm x 60 mm rectangular

60 cm x 45 cm rectangular

Direction and Place Identification signs with size more than 0.9 sqm size board. (Providing and erecting direction and place identification retro- reflectorised sign asper IRC :67 made of encapsulated lens type reflective sheeting vide clause 801.3, fixed over aluminium sheeting, 2 mm thick with area exceeding 0.9 sqm supported on a mild steel angle iron post 75 mm x 75 mm x 6 mm, 2 Nos. firmly fixed to the ground by means of properly designed foundation with M 15 grade cement concrete45 cm x 45 cm x 60 cm, 60 cm below ground level as per approved drawing)

M/s NLM Infra Projects

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