MR- Maintenance and repair works on NH-61(New NH-02) and NH-36(New NH-29) under National Highway Division-I, Kohima during 2019-20(Phase-II) Vol-V

Amount

1. Construction of gabian structure at km 178.800 on NH-29

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.) upto 3 metre

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 @ 32 kg per 10 sqm having minimum tensile strength of 300 Mpa conforming to IS:280 and galvanizing coating conforming to IS:4826, woven into mesh with double twist, mesh size not exceeding 100 x 100 mm, filled with boulders with least dimension of 200 mm, all loose ends to be tied with 4 mm galvanised steel wire)

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification Granular Material

2. Construction of Box Culvert at km 174.800 on NH-29

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.

Providing and laying in position Plain Cement Concrete of Grade M 15 in leveling course below foundations, approach slabs, return wall, wing wall, curtain wall and including protection works at U/S and D/S all complete as per drawings and Technical Specifications Sections 1500, 1700 and 2700.

Providing and laying in position Plain Cement Concrete grade M15 in wing wall, head wall, parapet wall and return wall all complete as per drawings and Technical Specifications Sections 1500, 1700, 2100 and 2200.

Providing and laying in position Reinforced Cement Concrete grade M 35 in box cell structures for culverts complete as per drawings and Technical Specifications Sections 1500, 1700, and 2200.

Providing & fixing in position HYSD/TMT (Grade Fe 500) reinforcement bars in foundations, substructures, box strucutre complete as per drawings and Technical Specifications Section 1600.

Providing, placing, compacting and curing Reinforced cement concrete M 30 grade in approach slab including reinforcement and form work with all leads and lifts complete as per drawing and as per MoRT&H technical specifications 1500, 1600,1700&2704.

Providing and laying filter media behind box structure, wing wall, retaining wall and return wall complete as per drawings and Technical Specifications Section 305 and 2500.

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 specifications

Providing and laying 750mm thick boulder flexible apron for bed protection works with all leads and lifts complete as per drawings and Technical Specifications clause 2507.

M/s Omni Enterprise