Approaches of RCC Bridge No. 196/5

Amount

Dismantling of Structures (Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material,disposal of unserviceable material and stacking the serviceable material with all lift and lead of 1000 metres) i. By Mechanical means a. Prestressed/ Reinforced Cement Concrete M-20& above

Providing an construcyion of temporary island to accommodate pile rig and other accessories including casting of pile cap, all complete in depth of water up to 400 cm.

Providing and constructing one span service road to reach island location from one pier location to another pier location

Embankment Construction with Material Obtained from Borrow Pits(Construction of Embankment with approved materials obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300.1 and 300.2 ( including compensation of earth)(Including cost of testing of materials at site and laboratory as directed by the deptt. as per technical specification (A) From private land

Gabian Structure for Retaining Earth (Providing and construction of a gabain structure for retaining earth with segments of wire crates of size 7 m x 3 m x 0.6 m each divided into 1.5 m compartments by cross netting, made from 4 mm galvanised steel wire @ 32Kgs per 10Sqm having minimum tensil strength of 300Mpa conforming to IS:280 and galvanizing coating conforming to IS:4826, woven into meshes with double twist, mesh size not exceeding to 100mmX100mm , firred with boulders at least dimension of 200mm , all loose ends to be tied with 4mm galvenized steel wire.)

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 drawing and Technical specification. i. Stone/Boulder

Providing and laying Filter material underneath pitching in slopes complete as per drawing and Technical specification as per drawing and Technical specification .

RCC Open Drain : 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. i. Ordinary soil: Mannual Means ( With out dewatering): Depth upto 3m

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.)

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 (TATA/ SAIL/ Esser Steel/ Jindal panther steel/ Shyam steel or equivalent)

Plain/Reinforced cement concrete in sub-structure complete as per drawing and technical specifications and steel shuttering formwork as per MoRTH specification A. RCC Grade M25: Height upto 5m : Case I Using concrete Mixer

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification i. Sandy material

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.