NIT NO-13/Bridge/Raipur/2026-27

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.) Ordinary soil

Plain/Reinforced cement concrete in open foundation complete as per drawing and technical specifications.as per section 1500.1700 & 2100

PCC Grade M 15

Plain/Reinforced cement concrete in open foundation complete as per drawing and technical specifications.as per section 1500.1700 & 2100

RCC Grade M20

Supplying, fitting and placing HSD (High Strength Deformed Steel) bar reinforcement in foundation complete as per drawing and technical specifications as per section 1600.

Providing and laying filter material underneath pitching in slopes complete as per drawing and Technical specification including trimming of slopes to proper profile and preparation of bed as per section 2504.

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 as per section 2504.

Stone /Boulder

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 1 V: 20 H towards drawing face. Complete as per drawing and Technical specifications section 2706 and 2200.

Providing, fitting and fixing mild steel railing with minimum 2 nos ISMC 100 post spaced @ 2 metre c/c with ISMC 100 as horizontal members at top and bottom and 20 mm square bars spaced @ 100 mm c/c between posts complete as per approved drawing and Technical Specification and as per relevant clauses of section 1900 and 2703.2 (All vertical square bars is to be inserted in all horizontal members pierced and welded in horizontal members)

Painting on Steel Surfaces (Providing and applying two coats of ready mix paint of approved brand on steel surface after through cleaning of surface to give an even shade)

Granular Sub-base as per Table:- 400-1 Construction of granular sub-base by providing graded Material, carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface

Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the material with water at OMC in mechanical mix plant carriage of mixed material by tipper to site, laying in uniform layers with paver in sub-base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density as per clause 406.

With vibratory roller

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 as per relevant clauses of section 2503

Patching of damaged concrete surface with polymer concrete and curing compounds, initiator and promoter, available in present formulations, to be applied as per instructions of manufacturer and as approved by the Engineer. (Av. thickness 25mm)

Painting on Concrete Surfaces One coat on old surfaces ( Painting one or two coats after cleaning all dirt & dust, filling the surface with synthetic enamel paint in all shades on old concrete surfaces)

Sub-Division Officer

P.W.D. Bridge Const. Division

Jagdalpur (C.G.)