Restoration to damaged Tripple HP culvert at 6th km on Tulungia Bargola road by providing 6.00 m single span RCC Bridge under SDRF for the year 2021-22

Amount

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. In Ordinary Soil A. Manual Means (i) Depth upto3m (without dewatering)

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. (i)RCC Grade M-20 Using Concrete mixer.

Levelling course for Pile cap: Providing,laying of PCC M15 levelling course 100mm thick below the pile.

Reinforcement in Foundation :-Supplying,fitting and placing un-coated TMT bar reinforcement in foundation complete as per drawing and technical specification. TMT-IS 1786(Fe-500 D),Primary producer (TATA/SAIL/Esser Steel/Jindal Panthr steel/Shyam steel or equivalent)

Sub-Structure :- Plain/Reinforced cement concrete in sub-structure complete as per drawing and technical specification and steel shuttering form work . (N) without plasticiser. F) RCC Grade M25 (Using cocrete mixer) case-II - Height 0 to 5 m

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

Providing weep holes in Brick masonary/ Plain/Reinforced cocrete abutment, wing wall/return wall with 100 mm dia AC pipe, extending through thr full width of the structure with slope of 1V:20 H towards drawing face complete as per drawing and technical specification.

Super structure :- Furnishing and placing Reinforced /Prestressed cement concrete in super structure as per drawing and Technical specification including steel shuttering formwork, N. without plasticiser. (B) RCC Grade M25 Case-I using cocrete mixer) (ii)For T- beam and Slab (q) Height upto 5.00 m to 10.00m

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

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

Construction of R.C.C. railing of M 30 grade in cast-in-situ with 20 mm nominal size aggregate, true to line and grade, tolerance of vertical railing post not to exceed 1 in 500, centre-to-centre spacing between vertical posts not to exceed 2000 mm, leaving adequate space between vertical posts for expansion complete as per aproved drawings and technical specifications

Drainage spouts complete as per drawing and technical specifications

Approach :- Construction of embankment with approv ed material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slopeand com pacting to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5 Private Land

Construction of subgrade and earthen shoulders with approved material obtainedfrom 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. 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. For Grading II Materials

Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification inc luding spreading in uniform thickness,hand packing, rolling with three wheel 80-100 kN static roller in stages to propergrade and camber, applying and brooming, crushable 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 (iii) Grading III

Providing and applying primer coat with bitumen emulsion (CSS-1) on prepared surface of granular base including cleani ng 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 A) Primer @ 0.60 kg per sqm.

Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 kg per sqm on the prepared bitumineous / granualar surface cleaned with mechanical broom (including cost of testing of materials at site and laboratory as directed by the deptt.) I) (a) With Bitumen emulsion CSS-1h

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 TypeC as per Technical Specification Clause 508

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

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

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

MANOJ KUMAR ROY

Rudra Kumar Pathak

Sri Bhupen Nath