WBPWD/SE/NBCC II/NIT15/25-26

DISMANTLING OF EXISTING BRIDGE:- Clearing and Grubbing Road Land Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specifications Clause 201 for Rural Roads of MORD. By Manual Means In area of non-thorny jungle

Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per Technical Specifications Clause 202 for Rural Roads of MORD. By Mechanical Means Cement Concrete

FOUNDATION WORKS:- Earthwork in excavation of foundation trenches in all sorts of soil (including mixed soil but excluding stoney and moorum soil ) including removing, spreading or stacking the spoils within a lead of 150 meters as directed and including trimming the sides of trenches , levelling,dressing and ramming the bottom, bailing or pumping out water etc. as required complete including shoring if required . upto 3 m depth With pumping out water including shoring as required.

Depth of excavation 3 m to 6 m below existing GL.

Earthwork in filling in foundation trenches with good earth in layers not exceeding 15cm. including watering and ramming layer by layer complete with earth obtained from excavation of foundation or from fresh excavation of land arranged by Department within a lead of 150 m.

Providing Bored Cast-in-situ R.C.C. pile in position as per specifications in all kinds of soil including cost of boring using drilling mud to stabilize the bore and flushing the bore of excess mud with freshly prepared drilling fluid by using pumps prior to placing concrete by tremie pipe in one continuous operation and including the cost of all materials and labour for placing of concrete and also including the cost of mobilization and hire charges of all equipment necessary for boring, welding of reinforcement cage as necessary and lowering of reinforcement cage, preparation and placing of concrete, including the cost of concrete and reinforcement and labour for bending binding etc. complete as per Drawing and Technical Specifications and removal of excavated earth with all lifts and lead upto 1000 m. Work to be executed as per IS: 2911 (Part II Sec 2). Using Mix Design Concrete Grade M-35 (Pakur Variety Course Aggregate), Cement -(OPC-53) With Batching plant, Transit mixer and rane/Concrete Pump Using hdraulic piling Rig Pile Diameter -1200mm

Providing MS casing pipe around RCC cast-in-situ bored piles of different diameters in position including cost of all materials, fabrication, handling etc. complete as per direction of Engineer-in-Charge. 6 mm thick casing: 1200 mm. diameter pile.

Providing and laying Design Mix Concrete for plain/Reinforced concrete work excluding shuttering and reinforcement,if any, in ground floor as per relevant IS codes. Using Pakur Variety Stone Chips M-15 Grade

Cement Concrete for Reinforced Concrete in Pile Cap complete as per drawing and Technical Specification. Using Cement of (OPC-33/PSC/PPC), Using Pakur Variety Stone Chips. RCC Grade M-35 Using Batching Plant, Transit Mixer and Concrete Pump.

Supplying, fitting and placing un -coated HYSD bar reinforcement in Bridge Foundation including initial straightening, straightening of coils bars, removal of loose rust (if any), cutting to requisite length ending, binding with annealed wire not less than 1 mm in size and conforming to IS 280 at every intersection hooked and bent to correct shape and placed on forms etc. including cost of black annealed wire and cost of loading, unloading, carriage of all steel materials complete as per drawing and technical specifications and direction of Engineer-in-charge. Tor Steel rods / HYSD bars / TMT bars (Fe 415 /Fe 500 /Fe 500D, conforms to IS: 1786) (SAIL/ TATA/RINL)