Kar/AD19-20/05 Improvement of road to Kangthilangso waterfalls, Karbi Anglong from Ch. 6180 m to Ch. 6730 m under Assam Darshan Scheme for the year 2019-20.

Amount

Clearing and Grubbing Road Land : Clearing and grubing road land including uprooting wild vegetation, grass,busheds,saplings and trees of girth upto 300 mm,removal of stumps of such trees cut earlier and disposan of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per technical specfication cluase 201. (i) By Manual Means. (A) In area of non thorny jungle.

Construction of Embankment with Material obtained from Borrow Pits : Contruction of embankment with approved materiala obtained from borrow pits with a lift upto 1.5 m, transporting to site,spreading,grading to required slope and compacting to meet requirement o Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5 (I) Private Land.

Construction of Subgrade and Earthen Shoulders : Construction of Subgrade and Earthen Shoulders with approved material obtained from borrow pits with all lifts and leads transporting to site,spreading,grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000 m as per Technical Specification Clause 303.1. (1) Private Land

Construction of granular sub-base by Providing,well 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 three whell 80-100 kN static roller capacity to achieve the desired density,complete as per technical Specification Clause 402. Grading - B .

WBM Grading 3 Using stone screening type - B 11.2 mm for Gr. - III : Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 KN in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fill up the interstices of coarse aggregate,watering and compacting to the reqd. density grading 3 as per technical specfication cluase 405. (A) By Manual Means. Vide Annexure-2.

Providing and laying interlocking concrete block pavement having thickness 80mm as per technical specification clause 1504 .

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 MORTH specifications

Planting of Trees and their Maintenance for three Year (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 mannure, planting the saplings, backfilling the trenches, watering , fixing the tree guatrd and maintaining the plants for three year.

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 1701.2.3 fixed over aluminium sheeting , 1.5 mm thick supported on a mild steel angle iron post 75 mm x 75mm x 6mm firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 450 mm x 450 mm x 600 mm , 600 mm below ground level as per drawings and Technical specification clause 801 . (iv) 80cmx60cm rectangular .

Box Culvert :- Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 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 backfilling in trenches with excavated suitable material.

Providing Concrete (M-15) for Plain Concrete in foundation complete as per drawing and technical specifications Clauses 802, 803, 1202 & 1203

Providing Concrete (M-25) for Plain /Reinforcement Concrete in open foundations complete as per drawing and Technical specification clause 802, 803, 1202 & 1203

Providing Concrete (M-25) for Plain /reinforcement Concrete for substructure complete as per drawing & technical specification Clauses 802, 804, 805, 806, 807,1202 and 1204

Providing Concrete (M-25) for Plain /reinforcement Concrete for substructure complete as per drawing & technical specification Clauses 802, 804, 805, 806, 807,1202 and 1204

Supplying, Fitting and Placing HYSD Bar Reinforcement in substructrue complete as per Drawing and Technical Specification Clause 1002,1005,1010 & 1202

Providing and laying filler media with granular crushed aggregates as pecification to thichness to a thickness not less than 600 mm. with smaller size towards the soil and bigger size towards 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 Specifications Clause 1204.3.8

Providing and laying Concrete (M-25) for Reinforced Cement Concrete in Superstructure as per drawing and Technical specification clause 800, 1205.4 & 1205.50

Providing and laying Concrete (M-30) for Reinforced Cement Concrete in Superstructure as per drawing and Technical specification clause 800, 1205.4 & 1205.50

Supplying, Fitting and Placing HYSD Bar Reinforcement in superstructure complete as per Drawing and Technical Specification Clause 1002,1010 & 1202

Providing Weep Holes in Brick masonry/ Stone masonry, Plain/ Reinforced concrete abument, wing wall, return wall with 100mm dia AC pipe extending through the full width of the structures with slope of 1(V): 20 (H) towards drawing face complete as per drawing

Drainage spouts complete as per drawing and technical specification Clause 1209

Providing and laying a buried expansion joint, covered with 12 mm thick, 200 mm wide galvanised weldable structrual 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 of 8 mm dia, 100 mm long galvanised nails spaced 300 mm c/c along the centre line of the plate, as per technical specifications Clauses 1207.2.3

Printing New Lettering and Figures of any Shade Printing new letter any figures of any shade with synthetic enamle paint black or any other approved colour to give an even as per drawings and technical specification clause 1701 English and Roman

PCC Drain :- Excavation for Structures Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 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 backfilling in trenches with excavated suitable material. I) Ordinary soil (i) upto 3 m depth

Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 P.C.C grade M 10 Nominal mix 1:3:6

Providing concrete for plain / reinforced concrete in substructure complete as per drawings and technical specifications Clauses 802, 804, 805, 806, 1202 & 1204 PCC Grade M 20 Nominial mix (1:2:4)

Plastering with cement mortar (1:4), 15 mm thick on brickwork in substructure as per technical specification Clauses 613.4 & 1204

Supplying, fitting and placing TMT (Fe-500 D) reinforcement bar (From Primary Producer: TATA/SAIL/Esser Steel/ Jindal steel/Shyam steel/RINL) in substructrue complete as per drawings and technical specification Clauses 1002, 1005, 1010 & 1202

Retaining Wall :- Excavation for Structures Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 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 backfilling in trenches with excavated suitable material. I) Ordinary soil (i) upto 3 m depth

Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 P.C.C grade M 10 Nominal mix 1:3:6

Stone masonry work in cement mortar 1:3 for substructure complete as per drawing and technical specifications . A) Random Rubble Masonry

Pointing with cement mortar (1:3) on brickwork in substructure as per technical specification .

Routine Maintenance for 1st year

Routine Maintenance for 2nd year

Routine Maintenance for 3rd year

Mintu Bora

Amuilo Kro