SOPD_G_20_21_43 Construction of RCC Bridge No.1/1 over river Kollong on NH-37 to NKS Road via Milan Nagar Road under SOPD-G for 2020-21

Amount

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 ( qty as per statement)

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. ( Including cost of testing of materials at site and laboratory as directed by the deptt.) (a) From Private land ( qty as per statement)

By Mix in Place Method (Construction of granular sub-base by providing close 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( Including cost of testing of materials at site and laboratory as directed by the deptt.) for grading- II Material

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 instages to proper grade and camber, applying and brooming, stone screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density ( with an initial lead of 5km),I) Grading-II By Manual means ( rate as per analysis enclosed)

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 instages to proper grade and camber, applying and brooming, stone screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density ( with an initial lead of 5km), (2) Grading-III By Manual means ( rate as per analysis enclosed)

Providing and applying primer coat with bituminen emulsion on prepared surface of granular base including cleaning of road surface and spreaying primer at the rate of 0.60 kg/sqm using mechanical means. (i) With bitumen emulsion CSS-1h

Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 kg/sqm on the prepaired btuminous/granular surface cleaned with mechanical broom. (i) With bitumen emulsion CSS-1h ( c ) Granular surfaces treated with primer

Open - Graded Premix Surfacing (Providing, laying and rolling of open - graded premix surfacing of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen to required line, grade and level to serve as wearingcoarse on a previously prepared base, including mixing in a suitable plant laying and rolling with a smooth wheeled roller 8-10 T capacity to yhe reqd. level and grade. ( including carriage up to initial lead of 5.0 km from quarry and 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.) A) Without anti stripping agent i) Mechanical method using Penetration grade Bitumen ( 60/70 or VG-30 grade) and HMP of appropriate capacity not less than 75 tonnes / hour

Seal Coat (Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A and B seal coats) ( including carriage up to initial lead of 5.0 km from quarry )( Including cost of testing of materials at site and laboratory as directed by the deptt.) (a) Without anti stripping agent Type B (Providing and laying of premix seal coat with HMP of appropriate capacity not less than 75 tonnes/ hours using crushed stone chipping 6.7 mm size and penetration bitumen of 60/70 or VG-30 grade.)

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) ii ) 60cm equilateral traingle

Supplying, fitting and fixing RCC guard post 150cm long erected 75cm above the ground and 75cm below the ground with M-15 grade (nominal mix 1:2:4 with broken stone aggregate up to 20mm size) of cement concrete and required reinforcement tied in position with annealed black wire including centering, moulding the top, curing including painting concrete surfaces in 23cm strips upto 0.75m from the top alternately in black and white and having 2 nos. reflective band of desired shade etc. complete as per design and as directed. b) 15 cm dia. RCC guard post with reinforcement of 4nos. 12mm dia TMT main steel bars and 6mm TMT/ MS stirrups at 15cm c/c.

Earth work in excavation for foundation of structures as per drawings & 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 as per MORTH clause No.304.,In Ordinary Soil, Depth upto 3.00m

Providing and constructing temporary island for construction of pile foundation with depth of water upto 4.0m complete as per technical specification.

Providing and constructing one Span service road to reach island from one Pier location to another location.

Bored cast-in-situ M35 grade R.C.C. pile excluding reinforcement complete as per drawing and technical specifications and removal of excavated earth with all lifts and lead upto 1000 m. including providing 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) (Pile diameter-1000 mm)

Pile load test on single vertical pile in accordance with IS:2911(Part-IV) a) Initial and routine load test

Providing and laying of PCC M15 levelling course 100mm thick below the pile cap as per drawing and technical specification of MORTH Section

Cement concrete for reinforced concrete in pile cap complete as per drawing and Technical Specification including providing 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.,B RCC Grade M25,Using Concrete Mixer.

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

Plain/Reinforced Cement concrete, in Substructure complete as per Drawing and Technical Specifications as per MORTH Section 1500,1700,2200 ,Without plasticiser ,F. RCC M-25 Grade,Using Concrete Mixer,i. Height upto 5.0m

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

Supplying, fitting and fixing in position true to line and level elastomeric bearing conforming to IRC : 83 (Pt. II) Section IX and Clause 2005 of MoRT &H Specifications complete including all accessories as per drawing and Technical Specifications as per MORTH section 1000,2000,2200

Providing and laying reinforced cement concrete in superstructure as per drawing and technical clauses 800,1250.4 and 1205.5 ,Without plasticiser ,RCC M-25 ,For RCC T Beam and Slab,i. Height upto 5.0m

Supplying, fitting and placing TMT IS:1786 (Fe 500) bar reinforcement in super-structure complete as per drawing and technical specifications a) 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 of clause 800 and 1206.3

'Construction of precast RCC railing of M30 Grade, aggregate size not exceeding 12 mm, 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.

Burried Joint (Providing and laying a burried expansion joint, expansion gap being 20mm, covered with 12mm thick, 200mm wide galvanised wieldable structural steel plate as per IS:2062, placed symmetrical to centre line of the join, resting freely over the top surface of the deck concrete weilding of 8 mm dia 100 mm long galvanised nails spaced 300 mm c/c along the centre line of the plate, all as specified in clause 2604

Providings weepholes in brick masonry/stone masonry, plain/reinforced concrete abutment, wing wall, return wall with 100 mm dia AC pipe extending throught the full width of the structures with slope of 1 (V): 20 (H) towards drawings face complete as per drawings and technical specification Clauses

Backfilling behind abutment, wing wall and return wall complete as per drawings and Technical Specification A)Sandy Material

Drainage spouts complete as per approved drawings and technical specifications Cl 1209

SubwayBridge Construction of cold weather Bamboo bridge overall width of 3.70m and clear road way 3m with jungle wood post 20cm to 25cm dia 5 nos. In each rows and rows being 2.1 m 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 20cm 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 75mm x100mm first class local wood batters 120cm apart and 3 lines of jali bamboo horizantal ralling 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 a layer of brushwood to expossed portion out side trackway with earth topping complete as per direction of the department.

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 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 specificationsStone/Boulder

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

Raju Mesh

SATYAJIT BORA

LAXMIPAT CHORARIA