Improvement/Up-gradation of Dakhin Nalbari Road under SOPD-G in Udalguri (R and B) Division for the year 2019-20 (Ch.250.00m to 1200.00m)

Amount

(A) Road Work: Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable materials to be used or auctioned, up to a land of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specification Clause 201. i) By Manual Means. A) In area of non thorny jungle.

Construction of embankment with approved material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and compacting to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5 (a) Private Land

Construction of sub-grade and earthen shoulders with approved material obtained from borrow pits with all lead and lifts and leads, transporting to site, spreading, grading to required slopes and compacted to meet requirement of Table 300.2 with lead up to 1000 m as per Technical Specification Clause 303.1. (a) 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 smooth wheel roller to achieve the desired density, complete as per Technical Specification Cl. 401. A) (II) For Grading II Materials

WBM gR-3: Providing, laying, spreading and compacting stone aggregate of specific size to WBM specification including spreading in uniform thickness, hand packing, rolling with three wheel 80-100 kN static roller in stages to proper grade and camber applying and brooming, stone screening to fill-up the inter stices of coarse aggregate, watering and compacting to the required density Grading 3 as per Technical specification Clause.405 (A) By Mnaul Means.

Inter locking concrete block pavement with edge block (i) Providing and laying interlocking concrete block pavement (M40) having thickness 80mm as per technical specification Clause 1504 (inclusive of Edge restraint and carriage).

Planting of Trees and their Maintenance for three years (Planting of trees by the road side (Avenue trees) in 0.60m dia holes, 1 m deep dug in the ground mixing the soil with decayed from yard/sludge mannure, planting the saplings, backfilling the tranches watering fixing the tree guatrd and maintaining the plants for three year.

Providing and fixing of retro reflectorised cautionary, mandatory and informatory sign as per IRC: 67 made of high intensity encapsulated lens type reflective sheeting vide clause 1701.2.3, fixed over aluminium sheeting 1.5mm thick supported on a mild steel angle iron post 75mm x 75mm x 6mm firmly fixed to the ground by means of properly designed foundation with M-15 grade cement concrete 450mm x 450mm x600mm, 600mm below ground level as per approved drawings and Technical Specification Clause 801. (iv) 800mm x 600mm rectangular.

Providing and fixing of retro reflectorised cautionary, mandatory and informatory sign as per IRC: 67 made of high intensity encapsulated lens type reflective sheeting vide clause 1701.2.3, fixed over aluminium sheeting 1.5mm thick supported on a mild steel angle iron post 75mm x 75mm x 6mm firmly fixed to the ground by means of properly designed foundation with M-15 grade cement concrete 450mm x 450mm x600mm, 600mm below ground level as per approved drawings and Technical Specification Clause 801. (ii) 600mm equilateral tringle.

(B) Construction of RCC Retaining Wall: Excavation for structures (earth work in excavation of foundation of structures as per drawings and technical specifications including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and back filling with approved material.

Reinforcement in foundation: Supplying, fitting and placing conforming to IS: 1786 TMT reinforcement bar Fe500 in foundation complete as per drawing and technical specifications. (a) TMT- IS 1786 (Fe-500 D)

Plain/reinforced cement concrete, in open foundation complete as per drawings and technical specification including steel shuttering formwork. (I) R.C.C.Grade M 20 Using Concrete mixer.

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 structures with slope of 1(V):20(H) towards drawing face complete as per drawing and technical specification.

(C) Construction of 1000mm dia SHPC (Width=12.50m), 2 Nos.: Excavation for structures Earthwork in excavation for foundation of structure as per drawing and technical specifications, includding setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material. I. Ordinary Soil . 1) Depth up to 3m (with dewatering)

PCC 1:3:6 in Foundation Plain cement concrete m-10 (1:3:6 Nominal mix) in levelling course below open foundation of head walls as per drawing and technical specification clause 1109. B. With Natural Gravel. I. PCC Grade M-10 Nominal Mix (1:3:6)

Brick masonry work in 1:4 in foundation of head walls complete exculding pointing and plastering as per drawing and technical specification Clause 1109. 1:4 in cement mortar

Laying 1st class bedding on well compacted sand, moorum as per technical specifications clause 1105 (ii) (ii) With Granular Materials

Plastering with cement mortar (1:4) 15mm thick on brick work in sub-structure as per Technical Specification clause 613.4 & 1204.

Providing and laying reinforcement cement concrete pipe NP3 for culverts on first class bedding of granular materials in single row including fixing collar with cement mortar 1:2 but excluding excavation, protection works, back filling, concrete and masonary works in head walls and parapets clause 1106. Reinforced cement concrete pipe NP3 (B) 1000mm dia.

(D) Construction of 2.00m RCC Slab Culvert (Width=9.00m): Earthwork in excavation for structures as per drawing and technical specification Clause 305.1 includding setting out, construction of shoring and bracing, removal of stumps and other deleterious matterial and disposal.

Providing concrete for plain/reinforced cement concrete in open foundations complete as per drawing and technical specification clause 802,803,1202 & 1203. A. With crushed stone PCC Grade M-10, 1:3:6

Plain/Reinforced cement concrete in foundation complete as per drawing and technical specification clause 802,803,1202. iii) RCC Grade M-20 (i) Heightupto 5m

Providing concrete for Plain/reinforced concrete in sub structure complete as per drawings and technical specification Clauses 802, 803, 1202 & 1204. B. With Natural Gravel. I. PCC grade M-20 nominal mix 1:2:4

Supplying, fitting and placing TMT bar reinforcement in substructrue complete as per drawings and technical specifications clause 1002,1005,1010&1202

Supplying, fitting, and placing HYSD bar reinforcement in superstructure complete as per drawing and technical specifications Clauses 1002, 1010 and 1202.

Providing and laying reinforced cement concrete in super structure as per drawings and technical specification Clauses 800, 1205.4 and 1205.5. a. With crushed stone. I. RCC M-25 A) Height upto 5m

Providing and laying reinforced cement concrete wearing course M 30 grade including reinforcement complete as per drawing and technical specifications Clauses 800 and 1206.3 A.With Crushed Stone.

Filler Joint sealing compound as per drawings and technical specifications with course sand 6% bitumen by weight.

Providing weep holes in brick masonry/stone masonry, plain/reinforced concrete abutment, wing wall, return wall with 100 mm 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 and technical specification Clause 614, 709, 1204.3.7.

Pabitra Boro

Suraj Kr. Basumatary

ASHOK KUMAR BAJAJ

SRI PRANAB BARMAN