Providing Slip Road Bridge On Kondli Bridge over Gazipur Drain Hindon Canal from Road along Gazipur drain to Shamshan Ghat Ghazipur Dairy Farm Road Delhi

CIVIL WORK Item no. 1.1 Conducting and reporting investigation on all kinds of soil by boring hole of required depth by using shell and auger equipment including standard penetration test, collection of undisturbed soil samples at every identifiable change of strata, conducting laboratory tests on soil samples to decide necessary shear strength parameters of soil as well as compression index and coefficient of consolidation. These tests include natural moisture content, bulk and dry density, liquid and plastic limits, particle size distribution, and specific gravity, unconfined compression tests, tri-axial shear tests and consolidation tests on specimen from collected undisturbed soil samples and particle size distribution, liquid limit, plastic limit etc. on specimen from collected disturbed soil samples. Conducting chemical analysis of subsoil water samples for evaluation of pH value, sulphate content, calcium content, chloride content and total dissolved solids in water for each borehole including preparation & submission of soil investigation report, giving complete comprehensive record of field and laboratory investigations and interpretation in soft and hard copy all complete as per SP002, as per MORTH Technical Specification-1102, 2403, 2404, 2405 and as per direction of Engineer-in-Charge. Up to 40 m for pile foundations, open footing etc.

Item No. 1.2 Boring, providing and installing cast-in-situ bored vertical piles with M35 grade reinforced cement concrete using Portland Pozollona Cement (conforming to strength requirements of IS:1489, 4031, 4032 ) including providing corrosion inhibiting admixture @3KG per cum of concrete all complete as per the drawing and Section 1100 & 1700 of MORTH specifications for Road Bridge Work and IRC:78-2014 at all locations as directed by Engineer-in-charge. The rates shall be inclusive of providing, fabricating and installing 6mm (Min or as per design) thick mild steel temporary liner wherever required or as directed by Engineer-in-charge. In case permanent liner is required as per design/drawings at some location, the same shall be paid as per item no. 1.3. Reinforcement shall be measured and paid separately as per item 5.1. 1200 mm dia

Item no. 1.3 Extra for providing Permanent Liner of thickness as per design requirement (Minimum: 6 mm thick) mild steel plate in place of temporary liner for piles as per site requirement or as directed by Engineer-in-charge. The rates shall be inclusive of fabricating, providing and driving the liner in position.

Item No. 1.4 Providing and laying M15 grade levelling course Plain Cement Concrete under Pile Caps, Open Foundations, tie beams and any other foundation/ locations etc.using Portland Pozzolona Cement (conforming to strength requirement of IS:1489, 4031, 4032) including the cost of centering and shuttering with all leads, lifts and depths all complete as per approved drawings and as directed by Engineer-in-charge.

Item No. 1.5 Providing and laying Design Mix Reinforced Cement Concrete in Bottam slab, Abutment Cap, Pile Caps, Open Foundations, tie beams and any other foundation etc. in M35 grade of concrete using Portland Pozzolona Cement (confirming to strength requirement of IS:1489, 4031, 4032) including providing corrosion inhibiting admixture @3KG per cum of concrete, including the cost of centering and shuttering, but excluding the cost of reinforcement & PCC levelling course, with all leads, lifts and depths all complete as per approved drawings and as directed by Engineer-in-charge. Item to include fixing of all type of structural inserts as per drawing and specifications. Reinforcement shall be measured and paid separately as per item 5.1.

Item No. 2.1 Providing and laying machine batched, machine mixed and machine vibrated design mix reinforced concrete for construction of Vertical wall ,Wing wall ,Drop wall,retaining wall,Curtain wall , Haunch, Piers, pier caps, abutments, abutment caps, shear key, bearing pedestals, dirt wall, Portal frame, seismic arrestors etc. using Ordinary Portland Cement (conforming to strength requirement of IS:8112) as per approved drawings supplied by the Engineer-in-charge including all types of shuttering, staging, scaffolding, necessary tools, plants, machinery and all related operations as required to complete the work with all leads, lifts, and depths true to level and position all complete but excluding the cost of reinforcement. Reinforcement shall be measured and paid separately and paid separately as per item 5.1. M50 Grade Reinforced Cement Concrete

Item No. 2.2 Providing and applying approved quality 2 coats of polyamide cured epoxy coating to un-plastered concrete surface after cleaning the surface of dirt, dust, oil, grease, efflorescence and applying paint @ of 1 litre for 2 sqm. for piers / abutments in the drain/river portions till HFL level and pier / abutment portions embedded in ground all complete including all scaffolding, testing of materials etc necessary tools, plants, machinery and all related operations as required to complete the work as per drawings, specifications and directions of Engineer- in-Charge with all leads, lifts and depths

Item No. 2.3 Providing and painting with approved quality 2 or more coats of anti-carbonation paint as per the direction of Engineer-in-Charge over un-plastered concrete surface of piers and superstructures after cleaning and removing dirt, dust, oil, grease, efflorescence to obtain an even surface and applying paint @ of 1 litre for 2.25 sqm. (150 micron thickness) including all scaffolding, testing of materials etc necessary tools, plants, machinery with all leads, lifts and depths and all related operations as required to complete the work as per drawings, specifications and directions of Engineer-in-Charge.

Item No. 3.1 Providing, fitting and fixing in position true in line and level laminated elastomeric bearings (conforming to IRC: 83 (Part-II) section IX and clause 2005 of MORTH specifications) on pedestals from pier cap / abutment cap complete in all respect with all components including grouting with non-shrink cementatious grout as per specification. Item includes preparation of design and drawing and its approval from the Engineer-in-charge, manufacturing, testing, transportation to site, storage with all handling, lead, lift etc. and placing the permanent bearings in position. Cost of providing temporary bearings / supports as required and other incidental expenses (if any) shall also be included. Bearings shall be provided with a warranty of trouble free maintenance of 15 years. For Horizontal & Vertical Load

Item No. 3.2 Providing and installing expansion joints as per specifications detailed in IRC-SP:69 duly supplemented with manufacturer's recommendations. Entire installation is to be carried out strictly in the presence of manufacturer's representative only at all times. Item to include preparation of designs and drawings to obtain the necessary approval from the Engineer-in-charge, necessary provision and filling of recess for the expansion joints at no extra cost. The seal of the expansion joints shall be such as not to permit any dust collection at all times. Expansion joint shall be provided with a warranty of trouble free maintenance of 15 years. Single strip seal joint with a total allowable movement of 80mm