Construction of High Level Bridge over Basokando River at Ch. 15.562 Km. of K.B More to Tiranga Chowk (Nourango) (Including Approach Road) Road under Road Division, Giridih For The Year 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 Mechanical Means Depth upto 3m (I) ORDINARY SOIL

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 Mechanical Means Depth upto 3m (II) SOFT ROCK

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/Reinfoced Cement concrete in open foundation complete as per drwaing and technical specifications. RCC Grade M30 RCC Grade M30 using batching plant,transit mixer & Manual Placing

Supplying, Fitting and Placing un-coated HYSD bar Reinforcement in Foundation complete as per Drawing and Technical Specifications.

CONFIRMATORY BORING

Plain/Reinforced cement concrete in sub-strucutre complete as per drawing and Technical specifications RCC Grade M30 Height Upto 5m RCC Grade M30 using batching plant, transit mixer & concrete pump

Back filling behind abutment, wing wall, return wall complete as per drawing and technical specifications do-do all complete job as per E/I. Granular Material

Providing and laying of filter media with granular materials/stones 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 drwaing and technical specification do-do all complete job as per E/I.

PCC M15 Grade leveling course below approach slab complete as per drawing and Technical specification do-do all complete job as per E/I.