Annual Maintenance including Incident Management of Dindigul Bypass to Samayanallur Section from Km 368/147 to Km 421/196 of NH-44 (Old NH-7) in the State of Tamil Nadu on Item Rate Basis

Routine Maintenance

Cleaning of MCW Carrying out proper cleaning, and removing of dust/silt/thrash /plastic/rubbish/garbage/waste from the carriageway, foothpaths, verges (excluding the verges of central median) by mechanical brooms established with vehicle tracking system and manually if required and as directed by the Engineer-in-charge. The payment will be made as per the report of vehicle tracking system indicating the location and kilometers travelled and number of passes on that stretch covering the full kilometer. The cleaning includes full width of both sides of carriageway and service road, if any and confirming to 6.10 of Scope of Work of Section-6 and as directed by the Engineer-in-charge. The payment will be deducted proportionately as per the report of VTS.

Urban area / Build up area (Frequency of cleaning will be per month)

Rural area (Frequency of cleaning will be quarterly).

Rectification of LED Solar blinkers Replacement of defective/non-functional components of existing LED Solar Blinkers, including battery with charging unit, LED lamp assembly, solar panel, post and other associated components, as required and directed by the Engineer. The quantities and payments shall be based on the actual number of components replaced and accepted at site. Warranty and supporting documents for the replaced components shall be submitted as directed by the Engineer.

Maintenance of street light Operation and Maintenance of Highway Street lighting electric poles including replacement/repair of foundation, damaged pole, cable, MCB, bulbs with suitable wattage as decided by Authority or SC (to be maintained throughout the year 24x7) and as per the road maintenance standard given in IRC SP 95-2011 and Technical Specification conforming to MoRT&H Specification in complete aspects excluding electricity consumption charges

Maintenance of High mast light Operation and Maintenance of Highway Street lighting electric poles including replacement/repair of foundation, damaged pole, cable, MCB, bulbs with suitable wattage as decided by Authority or SC (to be maintained throughout the year 24x7) and as per the road maintenance standard given in IRC SP 95-2011 and Technical Specification conforming to MoRT&H Specification in complete aspects excluding electricity consumption charges

Maintenance of bus shelters Maintence of busshelter such as cleaning, removal of stickers/posters, replacing/rectification of damaged chairs, glass panels, tiles, roofsheets and also painting at faded portions etc. as per the directions of the Engineer In-Charge. Payment shall be made for the actual quantity of components replaced and accepted by the Engineer.

Maintenance of Toilet Block Maintenance of Toilet Building in the Project Section by providing one unskilled labour (Mazdoor Category-II) for daily cleaning, sweeping, washing, and sanitation works to maintain the toilet premises in a neat, hygienic, and serviceable condition. The scope shall include supply of all cleaning materials and consumables such as toilet cleaners, disinfectants, phenyle, bleaching powder, acid, tissue rolls, garbage bags, brushes, mops, gloves, buckets, mugs, and other necessary items required for routine maintenance. The work also includes ensuring uninterrupted 24×7 water supply, payment of electricity charges, and carrying out periodic septic tank cleaning (once in three months). Further, the item includes replacement/repair of damaged components such as flush units, closets, taps, valves, pipelines, doors, ventilators, electrical fittings, and other allied accessories as required for proper functioning of the toilet block. The rate shall be inclusive of all labour, materials, consumables, tools and tackles, transportation, incidental charges, and all other expenses required for complete maintenance of one toilet block and as per the directions by Engineer

Mazdoor Category-II (Unskilled)

Electricity Charges

Cleaning accessories

Septic tank Cleaning

Replacement of damaged pipe, electrical and other accessories

Replacement of damaged delineators Supplying and installation of delineators (road way indicators, hazard markers and object markers) confirming to IRC 79,80 to 90 cm high above the ground level with about 200 to 300mm base which can be anchored on to the ground the declinator shall have an ellipsoidal or circular shape made of mild steel with pure polyster powder coating with minimum thickness of powder coating of not less than 40 micron. the delineator shall have minimum three reflective sheeting bands of 150mm height confirming to type XI sheeting specification as per IRC 67.

Reflective stickers Providing and fixing of retro-reflectorised stickers as per clause 801 of MoRTH Specifications for Roads & Bridge Works and IRC: 67 (2022) made of class -C Micro Prismatic Grade Sheeting of Type XI retro reflective sheeting. The sticker shall have NHAI Los Logo digitally printed with colour specification confirming to Sl no. 5.2 of NHAI Policy Circular 4.37/2025 dated 11th Nov 2025. Finished Signs shall have an Ultra Violet (UV) protective clear overlay applied to the entire face of the sticker supplied by reflective sheet manufacturer. Retro-Reflective sticker shall be fixed on alternate barrier posts with pressure sensitive adhesive. Sticker fixing shall be done after wiping the surface with a clean cloth soaked in isopropyl alcohol (IPA) or mild detergent, Remove all dust/ oil / grease/rust and moisture and allow surface to dry completely. If required use a heat gun or blower to dry surface if ambient humidity is high. Fix sticker on the prepared surface by removing the sticker liner slowly to avoid curling or contamination, preposition the sticker to ensure correct orientation and alignment, fix the sticker gently, use a felt-edge squeegee hammer or roller to apply uniform pressure from centre to outward, ensure no air bubbles or wrinkles remain, apply pressure across the entire surface to fix sticker firmly. The agency shall submit 10 years warranty for satisfactory field performance for type XI retro reflective sheeting from the retroreflective sheet manufacturer confirming to clause 6.7 & 6.9 of IRC 67. Agency shall submit a certified copy of test reports from a Government laboratory/Institute conforming to clause 6.7 & 6.9 of IRC 67 including 3 years accelerated outdoor weathering for the retro reflective sheeting. The Agency shall submit the sign convertor (manufacturer) name with details of essential equipment available with convertor in his fabrication shop such as digital printer, cutter, plotter, laminator, etc.

Cleaning of Culvert and structures Clearing slab/box type culverts and pipe culverts including clearing, cleaning and reshaping of upstream and downstream faces of those culverts and cleaning of RE panels with in the ROW. The Job includes disposal of excess material recovered site including vegetation outside ROW with all leads and lifts complete in all respect as per direction of Engineer in charge and as per road maintanence Standard clause no.6.5 & 6.6 of SP 95-2011.(Frequency of cleaning will be twice in a year i.e. before and after mansoon)

Drain vent cleaning Clearing road side/pucca drains to bring them original shape , drainage capacity including disposal of sediments , extraneous debris & vegetation growth blocking the free flow from site outside ROW with all leads and lifts complete in all respect as directed by the engineer in charge and as per road maintenance standard clause no .6.1.20 & 6.7 of SP 95-2011 (Frequency of cleaning will be once in a year )

Painting Painting two coats on old surface after filling the surface with synethetic enamel paint in all shades on new plastered surfaces and manufacture complete in all respect confirming to clause 803 of MORTH rev.V and IRC:SP:95-2011 Clause 6.10 and as directed by Engineer and as per other applicable clause in agreement (Up to any lift)

Replacement of damaged road signs: Providing and fixing of retro-reflectorised cautionary, mandatory and informatory sign as per clause 801 of MoRTH Specifications for Roads & Bridge Works and IRC: 67 (2022) made of class -C Micro Prismatic Grade Sheeting of Type XI retro reflective sheeting. The retro reflective sheeting shall have manufacturer logo, watermark and lot number on the sheet. A QR (Bar) code shall also be placed on the backside of the sign board with an indelible ink. For signs above 600mm size, retro reflective sheet shall be fixed over 2 mm thick aluminium sheeting vide or 4mm thick Aluminium composite material sheet vide clause 801 of MORTH Specifications for Roads & Bridge Works. For signs above 600mm sizes, sign shall be fixed over back support frame of minimum 35 x 35x 3 mm angle Frame. For signs above 600mm size, Signs shall be supported on GI circular pipe 80 NB, 3.2 mm thickness confirming to IS 1239. Retro-Reflective sheet shall be fixed on Substrate with Pressure Sensitive Adhesive. The Substrate shall be firmly riveted on Angle Frame @ 200mm spacing with Aluminium Pop rivets using Pneumatic Guns. The Angle frame shall be firmly fixed with high strength bolts, washers nuts conforming to IS1364 and IS 1367 on Sign Support Pole. Sign Supports shall be firmly fixed to the ground by means of properly designed foundation with M 25 grade cement concrete 45 cm x 45 cm x 60, 60 cm below ground level as per approved drawing. All Components of signs and supports including Angle Frame, Bolts, Nuts, Washers, etc. other than the reflective portion shall be galvanized by hot dip process (Zinc coated, 0.55 kg/sqm; minimum single spot) unless otherwise specified. All galvanizing shall be done after fabrication. Alternate white and yellow bands measuring 50 mm long retro-reflective sheeting shall be pasted around Gl posts which help in ensuring the visibility/Presence of poles during night time even if the sign boards are stolen or totally vandalized. Minimum four bands of such retro-reflective sheeting shall be pasted starting from a height of 0.5 m above the finish road level. The messages (legends, letters, numerals, etc.) and borders as per clause 6.8 of IRC 67 shall be digitally printed. Finished Signs shall have an Ultra Violet (UV) protective clear overlay applied to the entire face of the signs supplied by reflective sheet manufacturer. The agency shall submit 10 years warranty for satisfactory field performance for type XI retro reflective sheeting from the retro-reflective sheet manufacturer confirming to clause 6.7 & 6.9 of IRC 67. Agency shall submit a certified copy of test reports from an Government laboratory/ Institute conforming to clause 6.7 & 6.9 of IRC 67 including 3 years accelerated outdoor weathering for the retro reflective sheeting. The Agency shall submit the sign convertor (manufacturer) name with details of essential equipment available with convertor in his fabrication shop such as digital printer, cutter, plotter, laminator, Galvanizing plant, etc. The Agency shall submit road sign installation drawing in 'Kmz' file for approval before installation and after installation submit geo-tagging of all road signs with its installation photos and date of installation and other details as mentioned in IRC 67 annexure VII, complete in all respects. The sign supports and its foundation details are indicative. These may be increased for areas having higher wind velocities like in coastal areas. This is applicable to all road signs and directions boards.

Replacement of damaged Hazard markers: Providing and Fixing of Retro- Reflectorised Hazard Marker Traffic Sign made out of High Intensity Prismatic Grade Sheeting confirming to Type-IV standards of IRC- 67:2012 and ASTM D 4956- 09, specification and fixed over 2mm thick Aluminium sheet fixed over a back supporting frame of 25mmX25mmX3mm Mild Steel angle and supported on a mild steel angle post 75X75X6mm with a clear 0.6mm below ground level. The sign post should be painted as per IRC 67- 2012 and firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 45cmX45cmX60cm size including cost and conveyance of all materials, equipment, Machinery and labour with all leads and lifts, loading chargers necessary for satisfactory completion of the work as directed by the engineer in charge. High intensity Retro- Reflectro sheet shall consist of minimum coefficient of Retro- reflection as per Table 6.6 of IRC 67- 2012. The retro- reflective sheeting shall be covered under 7 year warranty issued for field performance and a certified copy of three years outdoor exposure report shall be obtained as per IRC 67:2012.(as per MORT&H Specification No.801)

Cleaning of Expansion Joint Clearing out cleaning of expansion joints, water spouts, Vent holes, vegetation around the structure & similar operation each time over bridge/flyovers (Twice in a year)

Maintenance of Avenue & Median Plants

Casualty Replacement of Median plants Planting Flowering plants and shrubs in central verge including Maintennace of one year as per IRC: SP:21 - 2009, Clause 11.19. (Size of the pits for planting shrubs: 60*60*60 cm.)

Casualty Replacement of Avenue Plants Planting of trees by the road side (Avenue trees) in 0.60 m dia holes, 1 m deep dug in the ground, mixing the soil with decayed farm yard/sludge manure, planting the saplings, backfilling the trench, watering, fixing the tree guard and maintaining the plants for one year

Carriageway Works

Clearing of light jungle/Removal of bushes

Rectification of rain cuts/shoulder maintenance Restoration of Rain Cuts (Restoration of rain cuts with soil, moorum, gravel or a mixture of these, clearing the loose soil, benching for 300 mm width, laying fresh material in layers not exceeding 250 mm and compacting with plate compactor or power rammers to restore the original alignment, levels and slopes)

Rectification of damaged HM, KM, 5th KM and Boundary stones Providing, painting, lettering and fixing of distant measurement stones including dismantling of old damaged/broken ones confirming to technical specification clause 804 of MORTH Rev.V

Road Studs: Providing and fixing of Reflective Pavement Markers (RRPM), i.e. road studs shall be prismatic retro-reflective type conforming to ASTM D-4280. The Plastic body of RPM/road stud shall be moulded from ASA (Acrylic Styrene Acrylonitrite) or HIPS (Hi-impact Polystyrene) or Acrylonitrile Butadiene Styrene (ABS). The marker height shall not be less than 10mm and shall not exceed 20mm and its width shall not exceed 130mm. The markers shall support a load of 13,635 kg tested in accordance with ASTM D 4280. The Reflective panels shall consist of number of lenses containing single or dual prismatic cubes capable of providing total internal reflection of the light entering the lens face. Lenses shall be moulded of methyl methecrylate conforming to ASTM D 788 or equivalent. The optical performance of road studs shall be confirming to clause 804.4 of MORTH specifications.

Thermo Plastic lane Marking Providing and Laying hot applied thermoplastic road marking strip on Sqm Bituminous Surface of specified shade/ colour of 2.5 mm thick including Type 1 beads (Refer MoRTH Specification Clause803.4.2) which are a constituent of the basic thermoplastic compound vide Table 800-9 (MORTH Specification) and Type 2 beads are those which are to be sprayed on the surface vide Clause 803.6.4 (MORTH Specification). The glass beads shall have a minimum reflectivity index of 1.5. The glass bead shall be @ 250gm/sqm. The thermoplastic road marking material thickness of 2.5 mm is exclusive of surface applied glass beads as per IRC 35. Pavement Marking Performance such as Day/Night visibility, Dry/Wet visibility and skid resistance shall be confirming to clause 15.5 of IRC 35. The finished surface to be level, uniform, and free from streaks and holes complete as per direction of Engineer-incharge and in accordance with applicable specifications. (Refer MORTH Clause 803 for technical Specification and Performance for IRC 35:2015).recommended use of specialized Road Marking Primer, based on surface conditions.

Flexible Median Marker Supplying and Fixing Median Marker confirming to IRC No. 79, shall be provided with fluorescent yellow colour retro reflective sheeting Type XI as per IRC: 67. Median Marker shall be of tough, high impact resistant, injection moulded, thermoplastic body with property of flexibility to provide high durability and U shape structure having rebound/bounce back property.

Solar LED blinkers Supplying and erecting red /yellow unbreakable polycarbonate body Solar Blinker 300mm dia. LED lamp confirming to IRC:93 and IS:7537. It shall have Light Emitting Diode (LED) - Hi Bright technology (Compliant to EN12368 or equivalent BIS standard). The Signal Switching shall be Solid State, with Opto-isolation. The Automatic operation mode shall have functional flashing rate available at 50% Duty Cycle 50 ог 60 Flashes/minutes. The Electrical Power Supply shall be solar based 12 VDC operating at Ambient temperature 0° to 55°C. The solar power system shall have in-built charge Controller - Low/High cut out, Solar SPV Module 60 Watts, Maintenance Free Battery (60AH) (having back up for operating blinker for 72 Hrs in absence of Sun or during rainy or foggy days. The Solar System shall be housed in a weatherproof pole mounting cabinet with clamp and mounting accessories. The Solar Blinker shall be supported on Gl circular pipe 80 NB, 3.2 mm thickness confirming to IS 1239, 3m above the Finish Road level. Gl circular pipe shall be firmly fixed to the ground by means of properly designed foundation with M 25 grade cement concrete 45 cm x 45 cm x 60, 60 cm below ground level as per approved drawing. Alternate white and yellow bands (Minimum four bands) of Type XI retro-reflective sheeting shall be pasted @ 0.5m c/c starting from a height of 0.5 m above the finish road level.

MBCB: MBCB:-Providing and erecting Single sided Single Guard Metal Beam Crash Barrier System (Type A, "W" Single Guard)1.80m high, comprising of 3mm thick wall "W" beams posts and spacer channels shall be made by cold roll forming using HR conform to IS 5986 Fe 410/360 and dip galvanized having Zinc Mass of 550gms/sqm, minimum 700 mm above road/ground level fixed on ISMC series channel vertical post 150x75x5mm spaced 2m center to center 312mm x 83mm flange width x 3mm thick, 4318mm long post directly embedded in the concrete (M15) pit size 350x350x800mm for a depth of 1100mm below ground. All fixing bolts and nuts hot dip galvanized conforming to IS: 1367 clause 4.60 all complete as per Technical Specification of IRC 119 2015 and as directed by the Engineer-in-charge.

Providing and fixing of missing Space Channels, Vertical posts & Beams in MBCBs

Cast in Situ Cement Concrete M20 Kerb Construction of cement concrete kerb with top and bottom width 115 and 165 mm respectively, 250 mm high in M 20 grade on M-15 grade foundation 150 mm thick, foundation having 50 mm projection beyond kerb stone, kerb stone laid with kerb laying machine, foundation concrete laid manually, all complete as per clause 409

Rectification of drain slab RCC Grade M30 using batching plant transit mixer & manual placing for drain cover slabs & including reinforcement at damaged locations on service roads as directed by engineer

Tubular Steel Railing on Medium Weight Steel Channel ( ISMC series) 100 mm x 50 mm- Providing, fixing and erecting 50 mm dia steel pipe railing in 3 rows duly painted on medium weight steel channels (ISMC series) 100 mm x 50 mm, 1.2 metres high above ground, 2 m centre to centre, complete as per approved drawings

Patch work

Filling Pot-holes and Patch Repairs with Bituminous concrete, 40mm. 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 503, back filling the pot holes with hot bituminous material as per clause 504, compacting, trimming and finishing the surface to form a smooth continuous surface, all as per clause 3004.2

Incident Management Vehicles

NHAI Route Patrol Vechicle(RPV)

Month

NHAI Crane

Month

Emergency Works (LS) / Day works ( unit Item Rate ) Providing the following equipment’s in running condition on hire basis including running and maintenance charges as per instructions of the Engineer complete in all respects.

Machinery

Labour

HTMS control room operation and equipment mainteance and repairing/replacement as per requirement and also as per the instruction of the Engineer complete in all respect

Operation and comprehensive maintenance of the existing Highway Traffic Management System (HTMS)/Advanced Traffic Management System (ATMS) installed on the Project Highway, including all field and control centre equipment such as CCTV/PTZ Cameras, Variable Message Signs (VMS), Meteorological Observation Systems (MOS), Emergency Call Boxes, Servers, Storage Systems, Video Wall, HTMS Software, Network Management System (NMS), Communication Network including OFC, UPS, Solar Power Systems, Control Centre Equipment and all associated hardware, software and communication infrastructure. The scope shall include 24×7 operation and monitoring, preventive maintenance, corrective maintenance, repair/replacement of defective components, supply of consumables and spares, software updates, antivirus and cybersecurity maintenance, data backup, calibration of sensors, communication network upkeep, maintenance of power supply systems, incident management support, generation of reports, and all other activities required for continuous and efficient functioning of the system. The Contractor shall maintain all HTMS/ATMS assets in fully operational condition throughout the Contract Period and ensure minimum monthly system availability of 98% or as directed by the Engineer. Any defective equipment shall be repaired or replaced promptly at the Contractor's own cost. No separate payment shall be made for manpower, spares, consumables, repairs, replacements, software support, communication charges, calibration, testing, reporting or any incidental activities necessary for satisfactory operation and maintenance of the HTMS/ATMS.

Creatives display at the fascia below NH structuresAs per the guidelines Policy Cricular No.4.35/2025 dated.07.02.2025, by Providing and fixing of high quality Retro-reflective reboundable Sheeting as per IRC 67-2022 . The reflective sheeting to be either applied on Aluminium Composite panel of 3mm thick having aluminum film thickness of not less than 0.25mm or can be directly applied on the structure after surface preparation. The adhesive of the film should be a pressure activated adhesive providing repositionability and has non-visible air release channels to provide a bubble free application. The sheeting should be printed using a sheeting manufacturer authorized printing platform, applied with a suitable overlaminate film for protection and then installed. The MCS warranty should be provided by sheeting manufacturer on the performance of retro-reflectivity and colour fade . Printing on face material must be done with Latex Wide Format Digital Printer with GREENGUARD / GREENGUARD GOLD Certified Inks only. Ink Layer should not peel, crack from base substrate used in the intended print application. The entire print construction must be protected with compatible high-quality UV Resistant Overlaminate film as per manufacturers recommendations. Use of over-laminate is mandatory to protect the print from fading with high conformability to take shape of textured surface of wall. The thickness of the over lamination film should be min 0.05 mm without adhesive. Overlaminate should have good chemical resistance property and should resists mild alkalis, mild acids, and salt. It should show excellent resistance to water (does not include immersion) and should resists occasional fuel spills. Incase of retro-reflective sheeting, a test report passing all the parameters including 36months Outdoor as per IRC 67-2022 clause 6.7 to be submitted. The contractor shall submit A4 size sample of the Type I rebound able sheeting with digital printing as per IRC 67-2022 MCS Warranty conditions. The cost to include all the activities like surface preparation, any cladding / Scaffolding need etc as per site requirements and OEM recommendations with full safety protocol.