Restoration to Road from 2 No. Gormora Chapori to Chakalaghat Ali (Const. of Box Culvert 5m X 5m) in beach portion for the year 2020-21 under SDRF in Golaghat and Khumtai Territorial Road Division. Pkg.No. SDRF/20-21/GKTRD/KHM/02

Amount

Making 120cm wide bamboo foot bridge with 100mm Bholuka or Barua bamboo posts driven 120 cm to 180 cm underground 3 Nos. in each row and rows being 3m apart bholuka or Barua bamboo dham placed over the posts and tied with cane or wire , Bholuka or barua bamboo struts in each row both up and down stream, jati bamboo long gorhs closely packed and tied with dham. Single layer of mat placed over 75mm thick brush wood and tied with bholuka or Barua bamboo rail stand fixed in one side of the bridge etc. complete.

12.1 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) In ordinary soil, (i) Depth up to 3.00m

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork (I) P.C.C grade M 10, Nominal mix

(II) P.C.C grade M 15, Nominal mix

(IV) R.C.C grade M 20, Nominal mix

Plain/reinforced cement concrete in substructure complete as per drawings and technical specification and steel shuttering formwork (I) P.C.C grade M 15, Nominal mix

(II) R.C.C grade M 20, Nominal mix

Furnishing and Placing reinforced/Prestressed cement concrete in super-structure as per drawings and technical specification including steel shuttering formwork (I) R.C.C grade M 20, Nominal mix height upto 5.00 mtr

Supplying, fitting and placing TMT bar reinforcement in superstructure including splicing complete as per drawing and technical specifications (a) With TATA make TMT CRS (Fe500 grade) rebar

13.8 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.

Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification (I) Granular material

Providing and laying of dry rubble flooring complete as per drawings and technical specifications Clause 1303.3

Construction of R.C.C. railing of M 25 grade in cast-in-situ with 20 mm nominal size aggregate, true to line and grade, tolerance of vertical railing post not to exceed 1 in 500, centre-to-centre spacing between vertical posts not to exceed 2000 mm as per drawing and technical specifications Clauses 800, 900 and 1208.3

Drainage spouts complete as per drawing and technical specifications Clause 1209

Construction of embankment with approved materials obtained from borrow pits with a lift upto 1.5m, transporting to site, spreading, grading to required slope and compaction to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000m as per Technical Specification Clause 301.5. (i) Private Land

Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000m as per Technical Specification Clause 303.1. (i) Private Land

Providing and laying of boulder apron laid in wire crates with 4 mm dia GI wire conforming to IS:280 and IS:4826 in 100 mm x 100 mm mesh (woven diagonally) including 10 per cent extra for laps and joints laid with stone boulders weighing not less than 25 kg each as per drawing and technical specifications Clause 1301

Providing and laying filter material underneath pitching in slopes complete as per drawing and technical specifications Clause 1302

Providing and laying pitching on slopes laid over prepared filter media as per drawing and technical specifications Clause 1302, Stone/Boulder

Bedanta Protim Hazarika