CONSTRUCTION OF CULVERT OVER LAKDAHI NALA AT VILLAGE SARONA UNDER TUKBERA PANCHAYAT IN NAWA BAZAR BLOCK PALAMU DISTRICT

Excavation for structures Earth work in excavation of foundation of structures as per drawing and technical specifications, 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 Mechanical Means (Depth upto 3 m)

PCC 1:3:6 in Foundation Plain cement concrete 1:3:6 nominal mix in foundation with crushed stone aggregate 40 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days.

Plain/Reinforced Cement concrete in open Foundation complete as per Drawing and Technical specifications. RCC Grade M25 RCC Grade M25 using batching plant, transit mixer & concrete pump

Plain/Reinforced cement concrete for wall & slab etc. complete as per Drawing and Technical specifications. RCC Grade M30 RCC Grade M30 using batching plant, transit mixer & concrete pump

Supplying, fitting and placing un-coated HYSD bar Reinforcement in Foundation complete as per Drawing and Technical specifications

Providing weep holes in Brick masonary/ 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 face. Complete as per drawing and Technical specifications.

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specifications. Granular material

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

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, tolerance of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000 mm, leaving adequate space between vertical post for expansion, complete as per approved drawings and technical specifications.