RIDF-XXVI/Chirang/01 Widening and Strengthening of road from Bijni Batabari Kuklung PWD road to Subhaijhar via Mongolian , Malipara and Thangabari including one R.C.C. Bridge at Hasraobari under RIDF-XXVI of NABARD for 2020-21

Amount

Road Work Clearing and Grubbing Road Land .(Clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300 mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable materials to beused or auctioned up to lead of 1000metres including removal and disposal of top organic soil not exceeding 150mm thickness. By Manual Means:- In area of light jungle

Excavation in Soil with Dozer with lead upto 100 metres (Excavation for road way in soil by mechanical means including cutting and pushing the earth to site of embankment upto a distance of 100 metres (average lead50 metres), including trimming bottom and side slopes in accordance with requirements of lines,grades and cross sections.

Embankment Construction with Material Obtained from Borrow Pits (Construction of embankment with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirment of table 300-2 ( Including cost of testing of materials at site and laboratory as directed by the deptt.) a) from private land

Construction of Subgrade and Earthen Shoulders (Construction of subgrade 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 (300-2) (a), ( Including cost of testing of materials at site and laboratory as directed by the deptt.) a) from private land

Granular Sub-Base with Coarse Graded Material ( Table:- 400- 2) (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 cl. 401. With all lead and lift upto Site of work. ( ii) for grading- II Material

Water Bound Macadam (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fillup the interstices of coarse aggregate,watering and compacting to the reqd. density ( with all lifts and lead upto Site of work) A. By Manual Means ( ii) Grading- II ( c) Using Screening Type-B (11.2mm Agg.)

Water Bound Macadam (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fillup the interstices of coarse aggregate,watering and compacting to the reqd. density ( with all lifts and lead upto Site of work) A. By Manual Means ( iii) Grading- III ( b) Using Screening Type-B (11.2mm Agg.)

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 of 1.00 kg/sqm using mechanical means.)( Including cost of testing of materials at site and laboratory as directed by the deptt.) (ii) With bitumen emulsion-CSS-1 (IS-8887-2004)

Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 kg per sqm on the prepared bituminous/granular surface cleaned with mechanical broom.( Including cost of testing of materials at site and laboratory as directed by the deptt.) (I)With Bitumen emulsion CSS-1h (c) Granular surfaces treated with primer

Bituminous Macadam (Providing and laying bituminous macadam with 100-120 TPH hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading premixed with bituminous binder, transported to site, laid over a pr(including carriage of mixed materials up to 10.0 Km initial lead from mixing plant ) ( Including cost of testing of materials at site and laboratory as directed by the deptt.)

Semi - Dense Bituminous Concrete (Providing and laying semi dense bituminous concrete 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 @ 4.5 to 5% of mix and filler transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the reqd. grade, lavel and alignment,rolling with smooth wheeled,vibratory and tandem rollers to achieve the desired compaction as per MoSRT&H cl. no.508. complete in all respect. (including carriage of mixed materials up to 10.0 Km initial lead from mixing plant )( Including cost of testing of materials at site and laboratory as directed by the deptt.)

Scarifying existing bituminous surface to a depth of 50 mm by mechanical means (Scarifying the existing bituminous road surface to a depth of 50 mm and disposal of scarified material with in all lifts and lead upto 1000m)

Turfing with Sods (Furnishing and laying of the live sods of perennial turf forming grass on embankment slope, verges or other locations shown on the drawing or as directed by the engineer including preparation of ground, fetching of rods and watering)

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 and conforming to the MoSrt&H specifications Two Sides= 1935.00 sqm + Centre line = 322.5 sqm

Providing reflective pavement marker with Micro prismatic lens in both direction having thermoplastic body adhering to the specification and guidelines of MoSRT&H’s fixed to the road surface using the adhesives and the procedures recommended by the manufacturers with three months replacement warranty and free maintenance.

Box Culvert (2.00m x 2.00m) Single Cell = 1 No. .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 with approved materials. Ordinary soil upto 3m depth.

Filling in Foundation trenches as per drawing & technical specification Clause 305.3.9 Sand filling

Providing concrete for Plain/Reinforced Concrete in open foundation complete as per drawing & technical Specification Clause 802 PCC Grade M-10

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification and steel shuttering formwork

Supplying, fitting and placing TMT IS:1786 (Fe 500) bar reinforcement in sub-structure complete as per drawing and technical specifications TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications ( a) With natural gravel

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification Sandy Soil

Boulder apron laid in wire crates (Providing and laying of boulder apron laid in wire crates made with 4mm dia GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh (weaved diagonally) including 10% extra for laps and joints laid with stone boulders weighting not less than 40Kg each.)

Box Culvert (1.00m x 1.00m) = 2 Nos. .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 with approved materials. Ordinary soil upto 3m depth.

Providing concrete for Plain/Reinforced Concrete in open foundation complete as per drawing & technical Specification Clause 802,803,1202 &1203 PCC Grade M-10

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification and steel shuttering formwork

Supplying, fitting and placing TMT IS:1786 (Fe 500) bar reinforcement in sub-structure complete as per drawing and technical specifications TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications ( a) With natural gravel

Boulder apron laid in wire crates (Providing and laying of boulder apron laid in wire crates made with 4mm dia GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh (weaved diagonally) including 10% extra for laps and joints laid with stone boulders weighting not less than 40Kg each.)

Bridge Work (4/2) Labour for dismantling all members of the timber bridge (excluding piles) with necessary scaffolding, jati bamboos, jumper ropes etc, complete and stacking them at suitable places as directed (all members will be under custody of the contractor till taken over by the department)

Labour for taking out old piles of timber bridge with necessary scaffolding, jati bamboos, jumper ropes etc, complete and stacking them at suitable places as directed.

Construction of cold weather Bamboo bridge overall width of 3.70m and clear road way 3m with jungle wood post 20cm to 25cm dia 5nos. In each rows and rows being 2.1m. apart except for the navigable span which should be 3m. Post to be driven at least 180cm. or more below ground level including providing 20cm to 25cm center to center and placed over 20 cm dia, jungle wood dham, 15cm dia. jungle wood bracing collar fixed by bolts and nuts, straps etc. mature bholuka Bamboo cross groth all closely packed and tied 75cm wide track way made from 38mm thick 1st class local plank fixed on 75mmx100mm first class local wood battens 120cm apart and 3 lines of jati bamboo horizantal railing fixed in bholuka bamboo post placed at 210cm apart and white washed including all necessary nuts and bolts, coir ropes, struts, nails etc. complete with a layer of brushwood to exposed portion out-side trackway with earth topping complete as per direction of the department.

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 and backfilling with approved material. Ordinary soil manual Means (I) Without dewatering upto 3 m depth to 6m

Providing and constructing temporary island 16 m diameter for construction of well foundation for 8m dia. Well. Assuming depth of water 1.0 m and height of island 1.25mm.

Providing and constructing one span service road to reach island location from one pier location to another pier location

Providing and laying cutting edge of mild steel weighing 40 kg per metre for well foundation complete as per drawing and technical specification.

Plain/Reinforced cement concrete, in well foundation complete as per drawing and technical specification including steel shuttering formwork. Without Plasticiser Well curb RCC M25 Grade Using Concrete mixer

Plain/Reinforced cement concrete, in well foundation complete as per drawing and technical specification including steel shuttering formwork. Without plasticiser Well Steining RCC M25 Grade Using Concrete mixer

Plain/Reinforced cement concrete, in well foundation complete as per drawing and technical specification including steel shuttering formwork. With plasticiser ( Masterplast PL-1/SPL-2 or equivalent ), air entraining and water reducing plasticiser ( Masterplast PAE or equivalent) and accelerating plasticiser ( Masterplast ACPL or equivalent) conforming to IS-9103-1999. Bottom Plug PCC M25 Grade Using Concrete mixer

Plain/Reinforced cement concrete, in well foundation complete as per drawing and technical specification including steel shuttering formwork. With plasticiser ( Masterplast PL-1/SPL-2 or equivalent ), air entraining and water reducing plasticiser ( Masterplast PAE or equivalent) and accelerating plasticiser ( Masterplast ACPL or equivalent) conforming to IS-9103-1999. Intermediate Plug PCC M25 Grade Using Concrete mixer

Plain/Reinforced cement concrete, in well foundation complete as per drawing and technical specification including steel shuttering formwork. With plasticiser ( Masterplast PL-1/SPL-2 or equivalent ), air entraining and water reducing plasticiser ( Masterplast PAE or equivalent) and accelerating plasticiser ( Masterplast ACPL or equivalent) conforming to IS-9103-1999. Top Plug PCC M15 Grade Using concrete Mixer

Plain/Reinforced cement concrete, in well foundation complete as per drawing and technical specification including steel shuttering formwork. With plasticiser ( Masterplast PL-1/SPL-2 or equivalent ), air entraining and water reducing plasticiser ( Masterplast PAE or equivalent) and accelerating plasticiser ( Masterplast ACPL or equivalent) conforming to IS-9103-1999. Well Cap RCC M25 Grade Using Concrete mixer

Sinking of 6 m external diameter well ( other than pneumatic method of sinking ) through all types of strata namely sandy soil, clayey soil and rock as shown against each case, complete as per drawing and technical specifications. Depth of sinking is rekonewed from bed level. Sandy soil Depth below bed level upto 3.0 M

Sinking of 6 m external diameter well ( other than pneumatic method of sinking ) through all types of strata namely sandy soil, clayey soil and rock as shown against each case, complete as per drawing and technical specifications. Depth of sinking is rekonewedfrom bed level. Sandy soil Beyond 3m upto 10m depth

Sinking of 6 m external diameter well ( other than pneumatic method of sinking ) through all types of strata namely sandy soil, clayey soil and rock as shown against each case, complete as per drawing and technical specifications. Depth of sinking is rekonewedfrom bed level. Sandy soil Beyond 10 m upto 20 m

Sinking of 6 m external diameter well ( other than pneumatic method of sinking ) through all types of strata namely sandy soil, clayey soil and rock as shown against each case, complete as per drawing and technical specifications. Depth of sinking is rekonewedfrom bed level. Sandy soil Beyond 20m upto 30 m For sinking including kentledge

Sinking of 7 m external diameter well ( other than pneumatic method of sinking ) through all types of strata namely sandy soil, clayey soil and rock as shown against each case, complete as per drawing and technical specifications. Depth of sinking is rekonewed from bed level. Sandy soil ( 7m dia. Well ) Depth below bed level upto 3.0 M

Sinking of 7 m external diameter well ( other than pneumatic method of sinking ) through all types of strata namely sandy soil, clayey soil and rock as shown against each case, complete as per drawing and technical specifications. Depth of sinking is rekonewed from bed level. Sandy soil ( 7m dia. Well ) Beyond 3m upto 10m depth

Sinking of 7 m external diameter well ( other than pneumatic method of sinking ) through all types of strata namely sandy soil, clayey soil and rock as shown against each case, complete as per drawing and technical specifications. Depth of sinking is rekonewed from bed level. Sandy soil ( 7m dia. Well ) Beyond 10m upto 20m depth

Sand filling in wells complete as per drawing and technical specifications

Reinforcement in Foundation: Supplying, fitting and placing TMT IS:1786 Fe500 D bar reinforcement in foundation complete as per drawing and technical specifications TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification and steel shuttering formwork Without plasticiser RCC Grade M25 Height upto 5m Using concrete mixer

Supplying, fitting and placing TMT IS:1786 (Fe 500) bar reinforcement in sub-structure complete as per drawing and technical specifications TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification Sandy Soil

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.

Supplying, fitting and fixing in position true to line and level elastomeric bearing conforming to IRC: 83 (Part-II) section IX and clause 2005 of MoRTH specifications complete including all accessories as per drawing and Technical Specifications.

Furnishing and Placing Reinforced /Prestressed cement concrete in super-structure as per drawing and Technical Specification' including steel shuttering formwork. Without Plasticiser RCC/PSC Grade M35 Using Batching Plant, Transit Mixer and Concrete Pump For T-beam & slab Height above 10m (As per PWD approved drawing)

Reinforcement in Super Structure: Supplying, fitting and placing TMT conforming to IS:1786 Fe 500 D reinforcement in super-structure including splicing complete as per drawing and technical specifications TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications

Construction of RCC railing of M30 Grade in-situ with 20 mm nominal size aggregate, true to line and grade, tolurence of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000 mm, leaving adequat space between vertical posts for expansion, complete as per approved drawings and technical specifications.

Strip Seal Expansion Joint (Providing and laying of a strip seal expansion joint catering to maximum horizontal movement upto 70 mm, complete as per approved drawings and standard specifications to be installed by the manufacturer/supplier or their authorised representative ensuring compliance to the manufacturer's instruction for installation).

Drainage Spouts complete as per drawing and Technical specification

PCC M15 Grade leveling course below approach slab complete as per drawing and Technical specification

Reinforced cement concrete approach slab including reinforcement and formwork complete as per drawing and Technical specification TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Protection Work: Boulder apron laid in wire crates (Providing and laying of boulder apron laid in wire crates made with 4mm dia GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh (weaved diagonally) including 10% extra for laps and joints laid with stone boulders weighting not less than 40Kg each.)

Providing and laying Filter material underneath pitching in slopes complete as per drawing and Technical specification

Providing and laying Pitching on slopes laid over prepared filter media including boulder apron laid dry in front of toe of embankment complete as per drawing and Technical specifications Stone/Boulder

Construction of RCC Guard Post of 250mm dia M-15 grade cast-in-situ with 20mm nominal size aggregate true to line and grade toleance of vertical RCC posts not to exceed 1 in 500 as per drawing and technical specification clause 1600.

Bridge Approach ( 2/1) Embankment Construction with Material Obtained from Borrow Pits (Construction of embankment with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirment of table 300-2 ( Including cost of testing of materials at site and laboratory as directed by the deptt.) (a) from private land

Construction of Subgrade and Earthen Shoulders (Construction of subgrade 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 (300-2) (a), ( Including cost of testing of materials at site and laboratory as directed by the deptt.) a) from private land

Granular Sub-Base with Coarse Graded Material ( Table:- 400- 2) (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 cl. 401 for grading- II Material

Water Bound Macadam (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fillup the interstices of coarse aggregate,watering and compacting to the reqd. density ( with all lead) By Manual Means Grading- II Using Screening Type-B (11.2mm Agg.)

Water Bound Macadam (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fillup the interstices of coarse aggregate,watering and compacting to the reqd. density ( with all lead) By Manual Means Grading- III Using Screening Type-B (11.2mm Agg.)

Bridge Approach ( 4/2) Embankment Construction with Material Obtained from Borrow Pits (Construction of embankment with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirment of table 300-2 ( Including cost of testing of materials at site and laboratory as directed by the deptt.) (a) from private land

Construction of Subgrade and Earthen Shoulders (Construction of subgrade 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 (300-2) (a), ( Including cost of testing of materials at site and laboratory as directed by the deptt.) a) from private land

Granular Sub-Base with Coarse Graded Material ( Table:- 400- 2) (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 cl. 401 for grading- II Material

Water Bound Macadam (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fillup the interstices of coarse aggregate,watering and compacting to the reqd. density ( with all lead) By Manual Means Grading- II Using Screening Type-B (11.2mm Agg.)

Water Bound Macadam (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fillup the interstices of coarse aggregate,watering and compacting to the reqd. density ( with all lead) By Manual Means Grading- III Using Screening Type-B (11.2mm Agg.)

RCC Solid Slab Culvert 15m Span Earth work in excavation for structures as per drawing and technical specifications, including setting out, construction of shoring and bracing removal of stumps and other deleterious material and disposal upto a lead of 50 m dressing of sides and bottom and back filling with excavated materials. i. In Ordinary Soil Up to 3 m depth.

Providing Concrete for Plain / Reinforced concrete, in Open foundation foundation complete as per drawing and Technical Specification clause 802,804,805,806,807,1202 and1204 A. with Natural gravel (i) PCC Gr.M-10

Providing Concrete for Plain / Reinforced concrete, in Open foundation foundation complete as per drawing and Technical Specification clause 802,804,805,806,807,1202 and1204 A. with Natural gravel (i) RCC Gr.M-20

Supplying, fitting and placing TMT bar (Fe-500 ) reinforcement bar (From Primary producer : TATA/SAIL/Essar Steel/Jindal Steel/Shyam Steel/RINL) in foundation complete as per drawing and technical specification clauses 1000, & 1202

Back filling behind abutment , wing wall, and return wall complete as per drawing and technical specification

Plain /Reinforced Cement Concrete in Sub-Structure Complete as per drawing and technical specification Clause 802, 804,805. I. RCC Gr. M- 20 (i) For height up to 5 m

ii) RCC Gr. M-25 Height up to 5 m

Supplying, fitting and placing TMT bar (Fe-500 ) reinforcement bar (From Primary producer : TATA/SAIL/Essar Steel/Jindal Steel/Shyam Steel/RINL) in Sub-Structure complete as per drawing and technical specification clauses 1000, & 1202

Providing and laying reinforced cement concrete in Super structure as per drawing and technical specification Clause 800, 1205. For Solid Slab Super Structure. Height up to 5 m

Supplying, fitting and placing MS bar (Fe-500 ) reinforcement bar (From Primary producer : TATA/SAIL/Essar Steel/Jindal Steel/Shyam Steel/RINL) in Super-Structure complete as per drawing and technical specification clauses 1000, & 1202

Providing and laying cement concrete wearing course M 30 grade including reinforcement complete as per drawing and technical specifications Clauses 800,1206.3

Construction of RCC Railing of M25 Grade in-situ with 20mm nominal size aggregate, true to line and grade, tolerance of vertical RCC post not to exceede 1 in 500, center to center spacing between vertical post not to exceed 2000mm, as per drawing and technical specification clause 800, 900 & 1208.3

Drainage Spouts complete as per drawing and specificatios Clause 120.9

Burried Joint ( Providing and laying a burried expansion joint , expansion gap being 20 mm covered with 12 m thick, 20 mm wide galvanised weldable structural steel plate as per IS: 2062, placed symmetrical to centre line of the joint ,resting freely over the top surface of the deck concrete welding to 8 mm dia ,100 mm long galvanised nail spaced 300 mm C/C along the centre line of the plate all as specified in clause 2604)

construction of cold weather bamboo bridge overall width 3.70 m and clear road way 3 mwith jungle wood post 20 cm to25 cmdia 5 nos.in each raws and raws being 2.1 m apart except for the navigable span which should be 3 m. Post to be driven atleast 180 cm or more below ground level including providing 20 cm to 25 cm centre to centre and placed over 20 cm dia, jungle wood dham, 15 cm dia jungle wood bracing collar fixed by bolts and nuts , straps etc. mature bholuka bamboo cross groth all closely packed and tied 75 cm wide track way made from 38 mm thick 1st class local plank fixed on 75mmx100mm first class local wood battens 120 cm apart and three lines of jati bamboo horizontal railing fixed in bholuka bamboo post placed at 210 cm apart and white washed including all necessary nuts and bolts, coir ropes, struts, nails etc. complete with alayer of brushwood to exposed portion out side track way with earth topping complete as per direction of the department.

Protec tion Work Providing and laying boulder apron laid in wire crates with 4mm dia GI wire conforming to IS:280 and IS: 4826 in 100 mmx 100 mmmesh (woven diagonally)including 10% extra for laps and joints laid with stone boulder weighting not less than 25 kg each as per drawing and technical specification.

Providing and laying filter material underneath pitching in slopes complete as per drawing and technical specification clause 1302.

Providing and laying pitching on slopes laid over prepared filter media as per drawing and technical specification clause 1302. (i) stone/boulder

Providing and laying of dray Rubble flooring complete and technical specification clause 1304

Construction of RCC Guide post of 250 mm dia M-15 grade cast in situ with 20 mm nominal size aggregate true to line and grade , toleance of vertical RCC Posts not to exceed 1 in 500 as per srawing and technical specification cl 1600.

chakrasing Muchahary