Road safety improvement works on SH and MDRs in Dhemaji district under ASRIP

Clearing and Grubbing Clearing grass and removal of rubbish up to a distance of 30 m outside the periphery of the area as per Technical Specification Clause 201. (By Manual Means)

Scarifying the existing bituminous (Scarifying the existing bituminous road surface to a depth of 150 mm and disposal of scarified material with all lift and lead as per Technical Specification)

Compacting original ground supporting sub-grade (Loosening and Recompacting of the ground upto a level of 500 mm below the sub-grade level, watered, graded and compacted in layers to meet requirement of table 300-2 for sub-grade construction. As per Technical Specification Clause No. 305)

Compacting original ground supporting subgrade Loosening of the ground upto a level of 300 mm below the subgrade level, watered, graded and compacted in layers to meet requirement of Tables 300.1 and 300.2 for subgrade construction as per Technical Specification Clause 303.5.2.

Granular Sub-Base with Coarse Graded Material (Table: - 400- 1), (Construction of granular sub-base by providing coarse graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with vibratory roller to achieve the desired density, complete as per Technical Specification Clause No. 401) For Grading V Material

Granular Sub-Base by reuse of excavated Coarse Graded Material from existing road (Table:- 400- 1) (Construction of granular sub-base by reuse of excavated non bituminous base and sub base roadway material from existing road , taking to plant area ,crushing to size and mixing suitable materials required to bring it to desired grading latter spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with vibratory roller to achieve the desired density, complete as per Clause No. 401 and Table 400-2 of Technical Specification and Clause No. 401) For Grading V Material

Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate as per Technical 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 compacting with vibratory roller to achieve the desired density.as per Technical Specification Clause No. 406)

Construction of Subgrade/Median/Earthen Shoulders (Construction of sub-grade, Median and earthen shoulders with approved material obtained from borrow pits with all lifts & leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of table No. 300-2 and Technical specification Clause No. 305 and 408)

Prime Coat Providing and applying primer coat as per Technical Specification Clause No. 502 with bitumen emulsion on prepared surface of granular Base including clearing of road surface and spraying primer using mechanical means as per spreading rate approved by Engineer.

Tack Coat Providing and applying tack coat with bitumen emulsion as per Technical Specification Clause No. 503 by using emulsion pressure distributor on the prepared bituminous surface cleaned with mechanical broom at rate of spread approved by Engineer.

Bituminous Macadam: (Providing and laying bituminous macadam with hot mix plant using crushed aggregates of grading as per Table 500.4 premixed with bituminous binder, transported to site including lead and laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled to achieve the desired compaction as per Technical Specification Clause 504.)

Surface dressing Providing and laying a double-layer Surface dressing treatment using automated spreader machine with calibrated control of flow rates on a previously prepared base. Each coat shall consist of Bitumen Emulsion (RS-2) conforming to IS 8887, applied hot at a temperature of 70–80°C onto a previously prepared and cleaned surface. The first layer shall consist of crushed stone aggregates of 13.2 mm nominal size applied at a rate of 0.009–0.011 m³/m², simultaneously sprayed with 1.5 kg/m² of bitumen emulsion. The second layer shall consist of crushed stone aggregates of 6 mm nominal size applied at a rate of 0.003–0.005 m³/m², simultaneously sprayed with 1.1 kg/m² of bitumen emulsion. The treated surface shall be laid to the specified lines, levels, grade, and cross fall, followed by compaction using a pneumatic tyre roller, and all work shall be carried out in accordance with the Technical Specifications of IRC:110-2005, IRC SP:34-1989, complying with MoRT&H section 509 and as directed by the Engineer-in-Charge.

Microsurfacing Providing and laying a microsurfacing treatment on a prepared road surface using a calibrated microsurfacing machine capable of accurately proportioning and mixing polymer modified bitumen emulsion, graded fine aggregates, mineral filler, water, and additives to produce a homogenous slurry mixture, which shall be uniformly spread using a calibrated spreader box. The process must produce a homogenous slurry mixture conforming to IRC: SP:81-2008 to restore skid resistance and surface texture. The bitumen used in the manufacture of the modified bitumen emulsion conform to the requirements specified in Mort&h Section 514, Table 500-32 and conforming to the specifications laid down in IRC: SP:81-2008. The Micro-surfacing shall be applied at a thickness of 6–10 mm for Type III as per MoRT&H Section 514, Table 500-31, depending on the design requirements. The mix shall be spread evenly to fill minor surface irregularities and restore texture. The quantities of mix shall be calibrated to ensure the finished surface fills minor irregularities as per the guidelines of IRC: SP:81-2008. All work shall be carried out in accordance with IRC SP:81-2008, following Specification as per MoRT&H Section 514 and as directed by the Engineer-in-Charge .

Interlocking pavement Block: Providing and laying Interlocking Concrete Block Pavement (ICBP) conforming to IS:15658-2006 including sand below block & Side packing M15 concrete with all lead and lift complete as per technical specification and as directed by Engineer In-Charge. 60mm thick interlocking precast blocks having compressive strength of 40N/sq.mm

Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 and Technical specification Clause No. 801.3 60 cm equilateral triangle

Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 and Clause No. 801.3 60 cm circular

Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 600 mm x 450 mm rectangular Clause No. 801.3

Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 800 mm x 600 mm rectangular Clause No. 801.3

Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectrorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 and Technical specification Clause No. . 801.3 75 cm high octagon

Direction and Place Identification Signs with size more than 0.9 sqm size Board. Providing and erecting direction and place identification retro- reflectrorised sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 and Clause No. 801.3

Painting lines, dashes, arrows, etc. on roads in two coats on new work with ready mixed road marking paint conforming to IS:164 on bituminous/concrete surface, including cleaning the surface of all dirt, dust and other foreign matter, demarcation at site and traffic control as per drawing and Technical Specification Clause 1702

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 as per Technical specification Clause No. 803.4

Metal Beam Crash Barrier, 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 2m center to center, 1.8 m high, 1.1m below ground/road level, all steel parts and fitments to be galvanized by hot dip process, all fitting to conform to IS:1367 and IS:1364, metal beam rail to be fixedon the vertical post with a spacer of channel section 150mm x 75mm x 5mm, 330mm long complete as per clause 810.)

Road Stud with Lense Reflector 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) and Technical specification Clause No. 804.

Solar Road Stud: Providing ‘Sparkle Solar Road Studs of size (125mm x 125mm), 90mm height (from bottom of shank to the top of stud) with detachable battery, m6LEDs-three on each side for Bi-directional studs/ 3 LEDs on one side for unidirectional studs, ultra bright LED in amber and red colour, weight per stud 700+25 gms, flash rate of 50-65 times per minute completely water resistant and weather proof with replacement warranty and free maintenance for one year from the date of installation of stud on road (installation should be made using adhesives and procedures recommended by manufacturer under the supervision of their competent technician and as per technical specification). Bi-directional Stud

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. PCC Grade M15

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. PCC Grade M20

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 specification.

Providing and laying filter media with granular crushed aggregates as per specification to a thickness of not less than 600 mm with smaller size towards the soil and bigger size towards the wall and providing over the entire surface behind abutment, wing wall, return wall to the full height, compacted to firm condition complete as per drawing and technical

Reparing & Rehabilitation: Patch repair on already filled pot holes with 75 mm BM with 20 mm premix carpet and seal coat Type B as per drawings and technical specification Clause 1904.2

Reparing & Rehabilitation:Repair to pot holes and removal of loose material, trimming of sides, cleaning of surface by providing tack coat with bitumen emulsion, 20 mm thick pre-mix carpet using catonic bitumen emulsion and seal coat type B with bitumen emulsion

Retrofitting Clearing and Grubbing Clearing grass and removal of rubbish up to a distance of 30 m outside the periphery of the area as per Technical Specification Clause 201. (By Manual Means)

Retrofitting Scarifying the existing bituminous (Scarifying the existing bituminous road surface to a depth of 150 mm and disposal of scarified material with all lift and lead as per Technical Specification)

Retrofitting Excavation in Soil using Hydraulic Excavator Tippers with disposal all lead and lifts. (Excavation for roadwork in soil with hydraulic excavator including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, loading disposal of excavated earth with in all lifts and leads or for reuse if suitable for embankment/subgrade at other location). As per Technical Specification Clause No. 301.3

Retrofitting Compacting original ground supporting subgrade Loosening of the ground upto a level of 300 mm below the subgrade level, watered, graded and compacted in layers to meet requirement of Tables 300.1 and 300.2 for subgrade construction as per Technical Specification Clause 303.5.2.

Retrofitting Granular Sub-Base with Coarse Graded Material (Table: - 400- 1), (Construction of granular sub-base by providing coarse graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with vibratory roller to achieve the desired density, complete as per Technical Specification Clause No. 401) For Grading V Material

Retrofitting Granular Sub-Base by reuse of excavated Coarse Graded Material from existing road (Table:- 400- 1) (Construction of granular sub-base by reuse of excavated non bituminous base and sub base roadway material from existing road , taking to plant area ,crushing to size and mixing suitable materials required to bring it to desired grading latter spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with vibratory roller to achieve the desired density, complete as per Clause No. 401 and Table 400-2 of Technical Specification and Clause No. 401) For Grading V Material

Retrofitting Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate as per Technical 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 compacting with vibratory roller to achieve the desired density.as per Technical Specification Clause No. 406)

Retrofitting Prime Coat Providing and applying primer coat as per Technical Specification Clause No. 502 with bitumen emulsion on prepared surface of granular Base including clearing of road surface and spraying primer using mechanical means as per spreading rate approved by Engineer.

Retrofitting Tack Coat Providing and applying tack coat with bitumen emulsion as per Technical Specification Clause No. 503 by using emulsion pressure distributor on the prepared bituminous surface cleaned with mechanical broom at rate of spread approved by Engineer.

Retrofitting Bituminous Macadam: (Providing and laying bituminous macadam with hot mix plant using crushed aggregates of grading as per Table 500.4 premixed with bituminous binder, transported to site including lead and laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled to achieve the desired compaction as per Technical Specification Clause 504.)

Retrofitting Surface dressing Providing and laying a double-layer Surface dressing treatment using automated spreader machine with calibrated control of flow rates on a previously prepared base. Each coat shall consist of Bitumen Emulsion (RS-2) conforming to IS 8887, applied hot at a temperature of 70–80°C onto a previously prepared and cleaned surface. The first layer shall consist of crushed stone aggregates of 13.2 mm nominal size applied at a rate of 0.009–0.011 m³/m², simultaneously sprayed with 1.5 kg/m² of bitumen emulsion. The second layer shall consist of crushed stone aggregates of 6 mm nominal size applied at a rate of 0.003–0.005 m³/m², simultaneously sprayed with 1.1 kg/m² of bitumen emulsion. The treated surface shall be laid to the specified lines, levels, grade, and cross fall, followed by compaction using a pneumatic tyre roller, and all work shall be carried out in accordance with the Technical Specifications of IRC:110-2005, IRC SP:34-1989, complying with MoRT&H section 509 and as directed by the Engineer-in-Charge.

Retrofitting Microsurfacing Providing and laying a microsurfacing treatment on a prepared road surface using a calibrated microsurfacing machine capable of accurately proportioning and mixing polymer modified bitumen emulsion, graded fine aggregates, mineral filler, water, and additives to produce a homogenous slurry mixture, which shall be uniformly spread using a calibrated spreader box. The process must produce a homogenous slurry mixture conforming to IRC: SP:81-2008 to restore skid resistance and surface texture. The bitumen used in the manufacture of the modified bitumen emulsion conform to the requirements specified in Mort&h Section 514, Table 500-32 and conforming to the specifications laid down in IRC: SP:81-2008. The Micro-surfacing shall be applied at a thickness of 6–10 mm for Type III as per MoRT&H Section 514, Table 500-31, depending on the design requirements. The mix shall be spread evenly to fill minor surface irregularities and restore texture. The quantities of mix shall be calibrated to ensure the finished surface fills minor irregularities as per the guidelines of IRC: SP:81-2008. All work shall be carried out in accordance with IRC SP:81-2008, following Specification as per MoRT&H Section 514 and as directed by the Engineer-in-Charge .

Retrofitting Interlocking pavement Block: Providing and laying Interlocking Concrete Block Pavement (ICBP) conforming to IS:15658-2006 including sand below block & Side packing M15 concrete with all lead and lift complete as per technical specification and as directed by Engineer In-Charge. 60mm thick interlocking precast blocks having compressive strength of 40N/sq.mm

Retrofitting Interlocking pavement Block: Providing and laying Interlocking Concrete Block Pavement (ICBP) conforming to IS:15658-2006 including sand below block & Side packing M40 concrete with all lead and lift complete as per technical specification and as directed by Engineer In-Charge. 80mm thick interlocking precast blocks having compressive strength of 40N/sq.mm

Retrofitting Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 and Technical specification Clause No. 801.3 60 cm equilateral triangle

Retrofitting Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 and Clause No. 801.3 60 cm circular

Retrofitting Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 800 mm x 600 mm rectangular Clause No. 801.3

Retrofitting Retro-Reflectorised Traffic Signs Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 600 mm x 450 mm rectangular Clause No. 801.3

Retrofitting Direction and Place Identification Signs with size more than 0.9 sqm size Board. Providing and erecting direction and place identification retro- reflectrorised sign as per IRC :67 made of high intensity grade sheeting vide Clause No. 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 and Clause No. 801.3

Retrofitting Painting lines, dashes, arrows, etc. on roads in two coats on new work with ready mixed road marking paint conforming to IS:164 on bituminous/concrete surface, including cleaning the surface of all dirt, dust and other foreign matter, demarcation at site and traffic control as per drawing and Technical Specification Clause 1702

Retrofitting 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 as per Technical specification Clause No. 803.4

Retrofitting Metal Beam Crash Barrier, 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 2m center to center, 1.8 m high, 1.1m below ground/road level, all steel parts and fitments to be galvanized by hot dip process, all fitting to conform to IS:1367 and IS:1364, metal beam rail to be fixedon the vertical post with a spacer of channel section 150mm x 75mm x 5mm, 330mm long complete as per clause 810.)

Retrofitting Road Stud with Lense Reflector 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) and Technical specification Clause No. 804.

Retrofitting Solar Road Stud: Providing ‘Sparkle Solar Road Studs of size (125mm x 125mm), 90mm height (from bottom of shank to the top of stud) with detachable battery, m6LEDs-three on each side for Bi-directional studs/ 3 LEDs on one side for unidirectional studs, ultra bright LED in amber and red colour, weight per stud 700+25 gms, flash rate of 50-65 times per minute completely water resistant and weather proof with replacement warranty and free maintenance for one year from the date of installation of stud on road (installation should be made using adhesives and procedures recommended by manufacturer under the supervision of their competent technician and as per technical specification). Bi-directional Stud