Provision of top chord inspection pathway on open web girder bridge no. 77(1x30.5), 80(3x30.5), 81(2x30.5), 88(3x30.5+2x14.2+3x30.5), 123(2x30.5), 133(10x30.5) in SKI-NMA section, bridge no.-4(3x30.5), 5(2x45.7), 6(1x30.5) and 7 (2x45.7) in NMA-SRGR section under SSE/Bridge/Samastipur of Samastipur Division.

A-Non Schedule item

Item Breakup - B-USSOR-2021

11135.00 and any length with suitable nuts including DTI washers conforming to IRS-B1-2001 for bridges and steel structures with contractors labour, tools and plants and lead and lift etc., complete. Metallizing of steel work of girders with sprayed aluminium after surface preparation by Sand/grit blasting, followed by one coat of etch primer (IS:5666) & one coat of Zinc Chrome primer (IS:104) and two coats of aluminium paint (IS:2339) with all labour, T&P and material as a complete job duly conforming to all relevant specifications and process given under Clause 39 of IRS-B1- 2001. Note: Nominal Thickness of sprayed Aluminium coating shall be 150 microns. DFT of Zinc chrome primer shall be 25-30 microns and DFT of each coat of Aluminium paint shall be 12-14 microns.

251.00 109740.39 ladders, inspection platforms, Trolley refuges etc., on bridges with structural steel conforming to IS:2062 including welding / bolting, priming painting with one coat of ready mixed paint of Zinc Chromate (IS:104) with DFT of 25-30 microns followed by one coat of Zinc Chrome Red Oxide (IS:2074) with DFT of 25 microns with all material, labour, T&P as a complete job. Note: Painting shall be paid separately under relevant item. Supplying and changing of corroded worn-out and loose rivets of any size at any location of the bridges with or without traffic blocks including all tools, plants, machinery complete in all respects.

Each Total 35193774.89