Approaches to RCC Bridge over river Kollong

Amount

Clearing and grubbing road land including uproofing rank vegetation, grass, bushes, shrubs, saplings and trees girth upto 300mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and staking serviceable materials and to be used or auctioned, up to a lead of 1000m including removal and disposal of top organic soil not exceeding 150 mm in thickness.

Construction of embankment with materials obtained from borrowpits, with initial lead up to 3km, transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300-2 (including land compensation of earth)

Construction of earthen shoulders & Subgrade with approved materials obtained from borrow pits with all lifts and leads, transporating to site, spreading, grading to required slope and compacting to meet required of table 300.2 (including compansation of earth)

(A) By mix Place Method:- Construction of granular sub-base by prevelling well gradeed 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 achive the desired, conplete as per Technical Specification Clause.401 (ii) For Grading Material (Gr-II) GSB

Water Bound Macadam:- Providing, laying, spreading and compacting stone agreegates of specific size to WBM specification including spreading in uniform thickness, hand packing rolling with vibrator 80-100KN static roller in stages to proper grade and camber applying and brooming, requisite type of screening /binding materials to fill up the inter slices of coarse aggregate, watering and compacting to the required density Grading-II (B) By manual Means (c. using screening type-B) 11.2mm aggregate

Water Bound Macadam:- Providing, laying, spreading and compacting stone agreegates of specific size to WBM specification including spreading in uniform thickness, hand packing rolling with vibrator 80-100KN static roller in stages to proper grade and camber applying and brooming, requisite type of screening /binding materials to fill up the inter slices of coarse aggregate, watering and compacting to the required density Grading-III (B) By manual Means (c. using screening type-B) 11.2mm aggregate

Interlocking Concrete Block Providing and laying shaded interlocking concrete block pavement having thickness 80mm as per IS 15658 2006(Compressive strength 47.2N/mm sq.

(C)Providing and laying Edge block/Edge restraints 300mmx300mmx150mm of (c.c)M 40 Grade including carriage as per Technical specification clause 1504.

Reinforced cement M15 grade kilometer stone of standard design as per IRC-8-1980 fixing in position including painting and printing etc. Rate - As per S.O.R . c) Hectometer Stone

Retro reflectorised Traffic sign: Providing and erecting of Retro-Reflectrorised cautionary, mandatory & informatory sign as per IRC: 67 made of high intensity encapsulated lens type reflective sheeting vide clause 801.3, fixed over aluminium sheeting, 2 mm thick fixed on an angle iron of 25x25x4mm supported on a mild steel angle iron post 75mm x 75mm x 6mm firmly fixed to the ground by means of properly design foundation with M-15 grade Cement concrete 45cm x 45cm x 60cm, 60cm below ground level as per approved drawing and sign. ( All the Steel work must be Tata/Sail/or any other approved brand) a) 600mm Circular,

b) 900mm Equilateral Triangular

d) 800 x 600mm Rectangular

RCC guard post- Supplying,fitting and fixing RCC guard post size 15 cm dia,150cmlong,75cm above the ground and 75cm below the ground, with 4-12mm Tor steel main steel and 6mm MS stirrups at 30cm c/c tied inposition with annealed black wire, cement concrete proportin 1:2:4 with broken stone aggregate up to 20mm size including centering,moulding the top.curing,paintedblack and white alternately in 23cm strips upto 0.75m from the top having reflective band 2 nos. of desired shade etc. as per design and direction complete. 30 cm dia with 4-12mmTor bar

Providing and erecting direction and place identification retro- reflectorised sign as per IRC: 67 made of encapsulated lens tye reflective sheeting vide clause 801.3, fixed over aluminium sheeting, 2mm thick with area not exceeding 0.9 sqm supported on a mild steel angle iron post 75mm x 75mm x 6mm, 2 Nos. firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 45cmx45cmx60cm, 60cm below ground level as per approved drawing. Rate - As per S.O.R .

UnderPass 5.00 x 5.00 M Size E/W in excavation for foundation of structures as per drawings and technical specifications, including setting out, construction of shorting and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and back filling with approved material (A) Mechanical means-with out dewatering) In ordinary Soil .Depth up to 3m

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. Without plasticiser (A) P.C.C. Grade M-15

Plain/reinforced concrete in sub structure complete as per drawing and Technical specifications Clause 802, 804, 805, 806, 807, 1202, & 1204.(A) with crushed stone.Using concrete Mixer (F)RCC GRADE M25

Supplying, fitting & placing TMT CRS (Fe-500) bar reinforcement in substructure complete as per drawing & technical specification.. With TATA make TMT CRS (Fe500 grade) rebar

Reinforced Cement Concrete Crash Barrier (Provision of an Reinforced cement concrete crash barrier at the edges of the road, approaches to bridge structures and medians, constructed with M-20 grade concrete with HYSD reinforcement conforming to IRC:21 and dowel bar 25mm dia, 450mm long at expansion joints filled with pre moulded asphalt filler board, keyed to the structure on which it is built and installed as per design given in the enclouser to MOST circular No. RW/NH - 33022/1/94-DO III dated June 1994 as per dimension in the approved drawing and at locations directed by the engineer, all as specified. M 20 grade concrete Rate as per SOR (2016-17)

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

Wing Wall ( In River side) E/W in excavation for foundation of structures as per drawings and technical specifications, including setting out, construction of shorting and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and back filling with approved material ( A) Manual means with out dewatering) Depth up to 3m

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. (A) P.C.C. Grade M-15

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. (A) P.C.C. Grade M-20

Providing weep holes in brick masonry works/PCC/RCC abutment,wing wall/returnwall with 100 mm dia AC pipe extending through the full width of the Structure with slope of 1v:20 each towards drawing face Complete as per Drawing and Technical Specification.

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.V. Marshy soil upto 3 m depth Manual means (i) Without dewatering

PCC 1:3:6 in Foundation(Plain cement concrete 1:3:6 nominalmix in foundation with crushed stone aggregate 40 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days.)

Plain/Reinforced cement concrete, in open 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. H. RCC Grade M35 Case I Using concrete Mixer

Reinforcement in Foundation: Supplying, fitting and placing uncoated TMT bar reinforcement in foundation complete as per drawing and technical specifications. (a) With TATA make TMT CRS (Fe500 grade) rebar.

Furnishing and Placing Reinforced/Prestressed cement concrete in super-structure 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. D. RCC/PSC Grade M35 Case-I Using concrete Mixer (i) For solid slab super-structure b Height 5m to 10m

Reinforcement in Super Structure: Supplying, fitting and placing TMT bar reinforcement in super-structure including splicing complete as per drawing and technical specifications (a). With TATA make TMT CRS (Fe500 grade) rebar.

Protection work 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

Providing and laying boulders apron on river bed for protection against scour with stone boulders weighing not less than 40 kg each complete as per drawing and Technical specification.Boulder laid dry without wire crates.

Ramawtar Agarwala