Construction of Bhararoo to Chanehar road under SCSP

Amount

BRIDGE WORK: Earth work in excavation for structures in all depths as per drawing and technical specification clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious materials and disposal in all lead and lift including dressing of sides and bottom and back filling in trenches with excavated suitable materials. All work of rock cutting by blasting shall be carried out by taking all necessary precautions against soil erosion damage to hill side water pollution etc. and to protect stability of hill side rock shall be excavated with chiseling and wedging out rock (where blasting is prohibited). All earth work in cutting/excavation including rock excavation shall be carried out true to lines grades, side slopes, width, camber super elevation and level as shown on the drawings or as directed by the Engineer-in-Charge hauling and stacking of materials useful for construction at suitable sites and safe disposal of unsuitable cut materials in specified manner filling of unevenness blind age and finishing of the road to specified dimension or as directed by the Engineer-in-Charge. If the foundation of the structure is in an area with stagnant water or water is met with in the excavation due to spring seepage rain and other causes it shall be remove by suitable diversion bailing out or pumping as directed and the area of the foundation or embankment shall be kept dry. Any loss to the public or private property during the course of excavation shall be the whole responsibility of the contractor which shall have to be duly compensated by him at his own cost in all cases.

Providing and laying mechnically mixed and vibrated plain cement concrete 1:3:6 (one cement:three sand: six graded/crushed stone aggregate in 40mm (forty millimetre) nominal size) in foundations and compacted by vibration including form work and curing complete within all leads, lifts carriage of material and other incidentials,as per the entire satisfaction and direction of Engineer -in Chief.

Providing and laying mechnically mixed and vibrated cement concrete with design mix to obtain the characterstic strength of M-25 grade having minimum cement contents of 320 kg. (three hundred and twenty kilogram) per cubic metre with graded crushed stone aggregate 20mm (twenty millimetre) nominal size and curing complete excluding cost of form work and reinforcement in suspended floor roofs, landing, shelves and their supports balconies, beams, girders, bressumers and the like upto any level and any thickness including carriage of materials within all leads, lifts and other incidentals complete in all respect.as per direction of Engineer -in Chief.

Providing and laying mechnically mixed and vibrated plain cement concrete Grade M-15 (fifteen) in sub structure including form works in any height complete as per drawing and technical specifications and curing complete within all leads, lifts carriage of material and other incidentials as per clause 1500, 1700 and 2200.direction of Engineer -in Chief.

Supplying, fitting and placing HYSD bar reinforcement in sub-structure complete as per drawing and technical specifications including carriage of material within all leads, lifts and other incidentals as per direction of Engineer -in Chief.

Back filling with granular material for bridge work behind abutment wing wall and return wall complete as per Drawing and technical specification and carriage of material within all leads, lifts/depths and other incidentals .as per direction of Engineer -in Chief.

Supplying, fitting and fixing in position true to line and level cast steel rocker bearing conforming to IRC:83 (pt.I) section IX and clause 2003 of MORTH specifications complete including all accessories as per drawing and technical specifications and carriage of material within all leads, lifts/depths and other incidentals as per direction of Engineer -in Chief. .

Supplying, fitting and fixing in position true to line and level forged steel roller bearing conforming to IRC:83 (pt.I) section IX and clause 2003 of MORTH specifications complete including all accessories as per drawing and technical specifications and carriage of material within all leads, lifts/depths and other incidentals charges.as per direction of Engineer -in Chief.

Providing weep hole in brick masonry/ plain/ reinforced concrete abutment , wing wall, return wall with 100mm dia. AC pipe, extending through the full width of the structures with slope of 1V:20H towards drawing face complete as per drawing and technical specifications clause 614,709,1204.3.7 including carriage of material and other incidentals charges.as per direction of Engineer -in Chief. .

Super Structure

Furnishing and Placing mechanically mixed and vibrated reinforced cement concrete grade M-30 (Thirty) in super-structure for T-beam and slab including form work and stagging up to any height as per drawing and Technical Specification and curing complete within all leads, lifts carriage of material and other incidentials charges.as per direction of Engineer -in Chief.

Providing and laying plain cement concrete M15 (fifteen) grade leveling course below approach slab complete as per drawing and Technical specifications curing complete within all leads, lifts carriage of material and other incidentials.charges.as per direction of Engineer -in Chief.

Providing and laying reinforced cement concrete approach slab including reinforcement and formwork complete as per drawing and Technical specifications curing complete within all leads, lifts carriage of material and other incidentials charges.as per direction of Engineer -in Chief. .

Providing and laying mechanically mixed and vibrated cement concrete wearing coat M-30 (thirty) grade including reinforcement as per drawing and Technical Specifications curing complete within all leads, lifts carriage of material and other incidentials charges.as per direction of Engineer -in Chief. .

Supplying, fitting and placing HYSD bar reinforcement in super structure complete as per drawing and technical specifications including carriage of material within all leads, lifts and other incidentalscharges.as per direction of Engineer -in Chief. .

Construction of RCC railing of M30 (thirty) grade in-situ with 20 mm(twenty millimetre) nominal size aggregate, true to line and grade, tollurence of vertical RCC post not to exceed 1 in 500 (one in five hundred), centre to centre spacing between vertical post not to exceed 2000 mm (two thousand millimetre), leaving adequate space between vertical post for expansion, complete as per approved drawings and technical specifications including carriage of material within all leads, lifts and other incidentals.

Providing drainage Spouts complete as per drawing and Technical specifications clause 1310 including carriage of material within all leads, lifts and other incidentalscharges.as per direction of Engineer -in Chief. .

Providing and laying a burried expansion joint, expansion gap being 20 mm (twenty millimetre), covered with 12 mm (twelve millimetre) thick, 200 mm (two hundred millimetre) wide galvanised wieldable structural steel plate as per IS: 2062, placed symmetrical to centre line of the joint, resting freely over the top surface of the deck concrete, welding of 8 mm dia. 100 mm long galvanised nails spaced 300 mm c/c along the centre line of the plate, all as specified in clause 2604 including carriage of material within all leads, lifts and other incidentals.charges.as per direction of Engineer -in Chief.

Providing and fixing in position 20 mm (twenty millimetre) thick premoulded joint filler in expansion joint for fixed ends of simply supported spans not exceeding 10 (ten) metre to cater for a horizontal movement upto 20 mm (twenty millimetre), covered with sealant complete as per drawing and technical specifications as per clause 2705 including carriage of material within all leads, lifts and other incidentals.

Providing and fixing in position 20 mm (twenty millimetre) thick premoulded joint filler in expansion joint for fixed ends of simply supported spans not exceeding 10 (ten) metre to cater for a horizontal movement upto 20 mm (twenty millimetre), covered with sealant complete as per drawing and technical specifications as per clause 2705 including carriage of material within all leads, lifts and other incidentals.

Approaches

Excavation in soil in hilly area by mechanical means including cutting and trimming of side slopes and disposing of excavated earth with in all leads and lifts as per technical specification clause 1603.1. including carriage of material and other incidentials charges.as per direction of Engineer -in Chief. .

Providing and laying concrete for plain / reinforced concrete in open foundations complete as per drawing and technical specification clauses 802,803,1202 & 1203. Plain cement concrete nominal mix 1:6:12 (one cement : six sand : twelve graded stone aggregate 40mm (forty millimetre) nominal size) complete within all leads, lifts carriage of material and other incidentials charges.as per direction of Engineer -in Chief. .

Providing and laying concrete for plain / reinforced concrete in open foundations complete as per drawing and technical specification clauses 802,803,1202 & 1203. Plain cement concrete nominal mix 1:5:10 (one cement : five sand : ten graded stone aggregate 40mm (forty millimetre) nominal size) curing complete within all leads, lifts carriage of material and other incidentials.charges.as per direction of Engineer -in Chief.

Providing and laying filter media with granular crushed aggregates as per spacification to athickness of not less than 600mm with smaller size lowards the soil and bigger size towards the wall and providing over the entire surface behind abutment, wing wall,return wall to the full height compacted to firm condition complete as per drawing and technical specification clouse 12043.8 including carriage of material and other incidentials charges.as per direction of Engineer -in Chief. .

Back filling behind abutment wing wall and return wall complete as per Drawing and technical specifications clause 1204.3.8 Granular material complete within all leads, lifts carriage of material and other incidentials charges.as per direction of Engineer -in Chief. .

Providing weep hole in brick masonry/ stone masonry / plain reinforced concrete abutment , wing wall, return wall with 100mm dia. PVC pipe extending through the full width of the structures with slope of 1V:20H towards drawing face complete as per drawing and technical specifications clauses 614,709,1204.3.7 including carriage of material and other incidentials charges.as per direction of Engineer -in Chief. .

Rakesh Kumar

VINOD KUMAR DHARWAL