RIDF-XXVII/Karbi Anglong/03 Construction of RCC Bridge No.1/2 on Chingthu Ranghang to Kamsing Teron gaon road (L 58 m ) under RIDF-XXVII of NABARD for the year 2021-22 under PWD Bakulia Road Division Under Hawraghat (ST) LAC

Amount

Bridge Proper: Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per Technical Specification Clause 202. I. By Manual Means C. Reinforced Cement Concrete

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. I. Ordinary soil B. Mechanical Means (ii) Depth 3 m to 6 m

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

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

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

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. (Pile diameter-1000 mm)

Cement concrete for reinforced concrete in pile cap complete as per drawing and Technical Specification of MORT&H Section 1100,1500 and 1700. B. RCC Grade M25 ( Using Concrete Mixer)

Providing and laying of PCC M15 levelling course 100mm thick below the pile cap as per drawing and technical specification of MORT&H Section 1100 & 1700

Supplying, fitting and placing TMT IS:1786 Fe500 D bar reinforcement in foundation complete as per drawing and technical specifications Cl. 1600. A. TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel)

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification Clauses 1500, 1700 & 2200 with steel shuttering formwork F. RCC Grade M25 I) Height up to 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)

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.

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.

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

Providing and laying of Filter media with granular materials/stone crushed aggregates satisfying the requirements laid down in clause 2504.2.2. of MoRTH specifications to a thickness of not less than 600 mm with smaller size towards the soil and bigger size toeards the wall and provided over the entire surfaces behind the abutement, wing wall and return wall to the full height compacted to firm condition complete as per drawing and technical specification.

Furnishing and Placing Reinforced/Prestressed cement concrete in super-structure as per drawing and Technical Specification' including steel shuttering formwork. (N) without plasticiser F. RCC Grade M25 (Using Concrete Mixer) (II) For T-Beam and Slab (p) Height up to 5.0 m

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 a. TMT-IS 1786 ( Fe-500 D) Primary Producer (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel) .

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

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.

Drainage Spouts complete as per drawing and Technical specification

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

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

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).

SSI works: Carrying out boring to make 150mm bores using casing not less than 150mm internal dia for all types of soil including clayey, silty, sandy and gravelly soil (except boring in rock) upto a depth of 30 m or upto refusal (N = 100) for collection of undisturbed/disturbed samples, carrying out standard Penetration Test (SPT) complete as per Appendix-2 of IRC 78-2000 as directed by the Deptt, including packing and carriage of all types of samples to the laboratory from the site of work and including carrying out all laboratory tests, preparation and submission of a report in quadruplicate with all sampling, testing to be done as per relevant IRC/IS codes complete as per direction of the Deptt.

2) Protection Work:- Providing and laying of boulder apron laid in wire crates with 4 mm dia GI wire conforming to IS:280 and IS:4826 in 100 mm x 100 mm mesh (woven diagonally) including 10 per cent extra for laps and joints laid with stone boulders weighing not less than 25 kg each as per drawing and technical specifications Clause 1301

Providing and laying pitching on slopes laid over prepared filter media as per drawing and technical specifications Clause 1302. I. Stone/Boulder

Providing and laying filter material underneath pitching in slopes complete as per drawing and technical specifications Clause 1302

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 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 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) from private land

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. (a) from 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 Clause 401. A. By Mix in Place Method II. For Grading II Material

WBM Grading II: 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, stone screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density grading 2 as per Technical Specification Clause 405. A. By manual means Using stone screening Type-B 11.2 mm for Gr.II

WBM Grading 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, stone screening to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 3 as per Technical Specification Clause 405. A. By manual means Using stone screening Type-B 11.2 mm for Gr.III

Primer coat: Providing and applying primer coat with bitumen emulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70-1.0 kg/sqm using mechanical means as per Technical Specification Clause 502. I. Low porosity

Tack Coat: Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.2 to 0.25 kg per sqm on the prepared dry and hungry bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503.

20mm thick Open-Graded Premix Carpet using Bituminous (penetration grade/modified bitumen) Binder : Providing, laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen or emulsion to required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a three wheel 80-100 kN static roller capacity, finished to required level and grades to be followed by seal coat of either Type A or Type B or Type C as per Technical Specification Clause 508. Case - I: By Manual Means i. Bitumen (S-90)

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, Type B and Type C as per Technical Specification Clause 510 A. By Manual Means Case-I : Type A i. Bitumen (S-90)

Retro reflectorised Traffic sign: 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 75 mm x 6 mm 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 ii. 600mm equilateral triangle

Providing and fixing of typical PMGSY informatory sign board with Logo as per MORD specifications and drawing. Three MS Plates of 1.6 mm thick, top and middle plate duly welded with MS flat iron 25mm x 5m size on back on edges. The lower plate will be welded with MS angle iron frame of 25mm x 25mm x 5mm. The angle iron frame of the lower most plate and flat iron frame of middle plate will be welded to 2 nos. 75mm x 75 mm of 12 SWG sheet tubes posts duly embedded in cement concrete M-15 grade blocks of 450mm x 450mm x 600mm, 600mm below ground level. The top most diamond plate will be welded to middle plate by 47mm x 47mm of 12 SWG steel plate tube. All M.S. will be stove enameled on both sides. Lettering and printing arrows, border etc. will be painted with ready mixed synthetic enamel paint of superior quality in required shade and colour. All sections of framed posts and steel tube will be painted with primer and two coats of epoxy paint as per drawing Clause 1701 and Annexure 1700.1

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) from private land

Supplying and driving timber piles of 25cm to 30cm diameter, dressed to heart wood including making length in every 30 cm interval, coal tarring two (2) coats with best tar applied hot (Rate inclusive of the cost of the required quantity of tar.) B. Using Azar/ Nahar/ Nageswar/ Zarul Timber a. Mechanically with Rod monkey and crab winch I. Portion of pile actually driven underground.

Supplying and driving timber piles of 25cm to 30cm diameter, dressed to heart wood including making length in every 30 cm interval, coal tarring two (2) coats with best tar applied hot (Rate inclusive of the cost of the required quantity of tar.) B. Using Azar/ Nahar/ Nageswar/ Zarul Timber a. Mechanically with Rod monkey and crab winch II. Portion of pile remaining above ground.

Wood work including supplying , fitting and fixing complete with necessary M.S. bolts, nuts, nails, screw etc. and coal tarring two (2) coats with best tar applied hot (Rate is inclusive of the cost of the required quantity of tar.) B. Using Azar/ Nahar/ Nageswar/ Zarul Wood (a) Undressed in floor planks, collars, bracing, standards, wheel guards, struts and railings, runner belts, rail, posts etc

Wood work including supplying , fitting and fixing complete with necessary M.S. bolts, nuts, nails, screw etc. and coal tarring two (2) coats with best tar applied hot (Rate is inclusive of the cost of the required quantity of tar.) B. Using Azar/ Nahar/ Nageswar/ Zarul Wood (b) In track way planks (alternate nailing to be done with decking in a seggragate way.)

Supplying, fitting and fixing timber beam and bearing beam rectangular in size fitted with M.S. etc. supplying spikes etc. as necessary and coal tarring two (2) coats with best tar applied hot as directed (Rate inclusive of cost of the required quantity of tar) (b) Using Azar/ Nahar/ Nageswar/ Zarul Timber

Labour for fitting and fixing RSJ beam, CI saddle etc. in position including necessary scaffolding, cutting them to required size, drilling holes and supplying and fixing ncessary bolts and nuts, painting two coats complete (Tar-Steel paints to be supplied by the contractor at his own costs) including all lead and lifts from PWD Godown.

JOHN MILLIK

Sri Khagen Kalita