Strengthening of major bridges in Assistant Divisional Engineer / Trivandrum Subdivision - Phase II.

A-Items of works covered under USSOR 2021

B-Items of works covered under DSR 2021

A1-Items of works covered under Southern Railway USSOR 2021

Supply and using Cement at Worksite Ordinary Portland Cement 53 grade of approved brands/makes Above/

A2-Items of works covered under DSR 2021

Item Breakup - A-Items of works covered under USSOR 2021

500.00 including 50m lead and lift up to 1.5m. Providing and laying in position Plain cement concrete of specified Nominal Mix for miscellaneous works like side drains, foundation for OHE masts and other miscellaneous structures excluding the cost of Cement, centering and shuttering - All work up to plinth level :

150.00 graded stone aggregate 20 mm nominal size)

60.00 graded stone aggregate 40 mm nominal size)

140.00 graded stone aggregate 20 mm nominal size) P r o v i d i n g and laying in position machine batched, machine mixed and machine vibrated Cement Concrete of specified grade as per approved Design Mix (mixed in Mobile Concrete Batching/Mixing Plant at site or RMC from approved plants) using 20mm graded crushed stone aggregate and coarse sand of approved quality for the following Reinforced cement concrete structural elements up to height of 9.0 m from foundation top level, including finishing, using Plasticiser in approved proportions (as per IS:9103), to modify workability without impairing strength and durability complete as per specifications and direction of the Engineer in c h a r g e . N o t e : 1. Payment for cement, reinforcement and shuttering shall be made extra under relevant item. 2. Plasticiser shall invariably be used in approved proportion to increase workability with minimum possible quantity of cement for all grade of Design Mix Concrete unless it is specifically approved citing reasons for not using plasticiser at the stage of Mix Design and in that case deduction shall be made as per relevant item.

10.00 Pedestal over Pier cap, Fender wall, Diaphragm wall etc.

40.00 ballast wall at formation level

6.00 the height above 9.0 m THIRUVANANTHAPURAM DIV-ENGG/SOUTHERN RLY P r o v i d i n g and laying in position machine batched, machine mixed and machine vibrated Cement Concrete of specified grade as per approved Design Mix (mixed in Mobile Concrete Batching/Mixing Plant at site or RMC from approved plants) using 20mm graded crushed stone aggregate and coarse sand of approved quality for cast in-situ Prestressed (Post- tensioned) concrete girder / Box girders/Slabs for different s p a n s including finishing, using Plasticiser in approved proportions (as per IS:9103), to modify workability without impairing strength and durability complete as per drawings, specifications and direction of the Engineer in-charge. Note: 1. Payment for Staging, Shuttering, Cement, reinforcement, HTS cables, sheathing, anchorage cones, stressing of cables and grouting of the ducts shall be made extra under relevant items. 2. Plasticiser shall invariably be used in approved proportion to increase workability with minimum possible quantity of cement for all grade of Design Mix Concrete unless it is specifically approved citing reasons at the stage of Mix Design and in that case deduction shall be made as per relevant item.

50.00 to12m above Bed Level Surface preparation of steel work of bridge plate/composite girders by cleaning with scrappers and/or wire brushes to remove all rust and loose or perished paint to prepare perfectly clean & dry bare metal surface free from all dirt/foreign material & ready for initial coat of paint for new or existing steel girders. Rate includes cost of labour, consumables, brushes, tools & plants, ladders, scaffoldings, jhoola, hanging scaffolding staging etc.

4000.00 plate/composite girders and other steel structures where the finishing coat shows signs of deterioration; but primer coat of paint is sufficiently in good condition and there are no signs of rusting etc. Surface shall be cleaned free from oil grease, scaling and other foreign matters without disturbing the primer coat {Rate includes cost of labour, consumables, tools & plants, scaffolding, jhoola, ladder etc.} Painting of cleaned plate/composite bridge g i r d e r s including all scaffolding along with provision of Jhoola / hanging scaffolding ladders etc. where required.

4000.00 conforming to IS:104 with DFT of 25-30 Microns followed by one coat of Zinc Chromate red oxide conforming to IS:2074 DFT of 25 Microns

4000.00 containers conforming to IS:2339 with DFT of 15 - 20 Microns for each coat.

2500.00 containers conforming to IS:2339 with DFT of 15 - 20 Microns . THIRUVANANTHAPURAM DIV-ENGG/SOUTHERN RLY

250.00 Boulders, weighing not less than 35kg each with voids filled with cement sand mortar 1:4 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 (filter media to be paid separately under the relevant item). Rate is excluding cost of cement which shall be paid extra under relevant item.

150.00 mortar of strength 45 Mpa (28 days) for replacement of spalled concrete with average thickness of 10mm as per manufacturer's specification and approved procedure.

25.00 110mm UPVC Type A ISI marked (Working pressure 4 kg/sqcm) using suitable clamps and adhesive etc., complete.

8.00 220325.57 1762604.56 members to replace existing corroded members of built up section made up of MS plate, angles, channels of different thickness and sizes including painting with one coat of ready mix paint Zinc Chromate priming to IS:104 followed by one coat of ready mix paint red-oxide Zinc Chrome priming paint to IS:2074. Structural steel should conform to IS:2062 E250- Grade'B0'. Fabrication and erection to be as per existing design initially by bolts and nuts and finally by rivetting during the sanctioned traffic block. Rate includes cutting of new steel work, removal of rivets by drilling, dismantling of any existing members required for inserting fabricated members, fixing of new fabricated built up members with all tools, plants, labour, consumables, machinery and accessories etc. Work will be executed as per IRS:B 1-2001. Note: Painting shall be paid extra under relevant item. Hiring of machinery for minor miscellaneous works for short duration including operator/driver, fuel, lubricants and consumable. The contractor shall arrange all statutory permits as required by rules and regulations prevailing in the area of work. Payment shall be made for actual working hours at site.

300.00 minimum 1.10 cum bucket capacity Total 9070638.92

Item Breakup - B-Items of works covered under DSR 2021