RIDF-XXVII/Golaghat/03 Cosntruction of RCC Bridge No.1/1 over River Dighalganja on Dighalganja Road including Approaches work under RIDF-XXVII of NABARD for the year 2021-22 in PWD Golaghat and Khumtai Territorial road Division (L 18.75m)

Amount

Labour for dismantling all members of the timber bridge (excluding piles) with necessary scaffolding, jati bamboos, jumper ropes etc, complete and stacking them at suitable places as directed (all members will be under custody of the contractor till taken over by the department

Construction of cold weather Bamboo bridge overall width of 3.70m and clear road way 3m with jungle wood post 20cm to 25cm dia 5nos. In each rows and rows being 2.1m. 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 20 cm 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 75mmx100mm first class local wood battens 120cm apart and 3 lines of jati bamboo horizantal railing fixed in bholuka bamboo post placed at 210cm apart and white washed including all necessary nuts and bolts, coir ropes, struts, nails etc. complete with a layer of brushwood to exposed portion out-side trackway with earth topping complete as per direction of the department.

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,backfilling the excavated earth to the extent required and utilising theremaining earth locally for road work.) (i) Ordinary soil A Manual Means (Depth upto 3 m) ( Without dewatering )

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). Without Plasticiser

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

Levelling course for Pile cap (ref of MoRTH 1100 & 1700)

Cement concrete for reinforced concrete in pile cap complete as per drawing and Technical Specification. I Without Plasticiser A RCC Grade M25 (i) Using Concrete Mixer

Reinforcement in Foundation: 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 tonne 78391.00 (TATA/ SAIL/ Esser Steel/ Jindal Panther steel/ Shyam steel or equivalent

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification and steel shuttering formwork I Without plasticiser. RCC Grade M25 a Height upto 5m Case I Using concrete Mixer

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 centimetre to IRC: 83 (Part-II) section IX and clause 2005 of MoRTH specifications complete includingall 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 Sandy material

Furnishing and Placing Reinforced/ Prestressed cement concrete in super- structure as per drawing and Technical Specification’ including steel shuttering formwork. I Without Plasticiser RCC Grade M35 Case 1 Using concrete mixer For T-beam & slab a Height upto 5m

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 or equivalent)

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

Construction of RCC railing of M30 Grade in-situ with 20 mm nominal size aggregate, 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

Compression Seal Joint (Providing and laying of compression seal joint consisting of steel armoured nosing at two edges of the joint gap suitably anchored to the deck concrete and a preformed chloroprene elastomer or closed cell foam joint sealer compressed and fixed into the gap with special adhesive binder to cater for a horizontal movement up to 40mm and vertical movement of 3mm.)

Painting Two Coats on New Concrete Surfaces’ Painting two coats after filling the surface with synthetic enamel paint in all shades on new plastered concrete surfaces

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 1000m including removal and disposal of top organic soil not exceeding 150mm in thick ness as per Technical Specification Clause 201.0 i) By Manual Means A) In area of non-thorny jungle

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.)

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 1000m as per Technical Specification Clause 303.1. (i) Private Land

Granular Sub-base with Close Graded Material (Table:- 400-1) 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 with all lead & lift upto the work site (Including cost of testing of materials at site and laboratory as directed by the deptt.) (i) for grading- I Material

Direction and place identification sign upto 0.9sqm size board. Providing and erecting direction and place identification retro-Reflectrorised sign as per IRC:67 made of encapsulated lens type reflective sheeting vide clause 801.3 fixed over aluminium sheeting, 2mm thick with area not exceeding 0.9sqm 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)

Gautam Bagaria

SRI PURNAKANTA HAZARIKA