CNB_CHARTHA

tem no 1: Excavation in all kinds of soil including boulders upto 0.60 m. diameter (0.113 cum.) for canal, seating of embankment, filter drains/catch water drains etc. and placing excavated stuff neatly in dump area or for formation of service road/embenkment as directed including cost of all materials, machinery, labour, dressing bed and sides to required level and profile etc. with 1 km. lead and 6 m. lift.

Item no.2: Excavation in hard murum including boulders upto 0.60 m diameter (0.113 cum.) for canal, seating of embankment, filter drains/ catch water drains etc. and placing excavated stuff neatly in dump area or formation of service road as directed including cost of all machinery, labour, dressing bed and sides to required level and profile etc. with 1 km. lead and 6 m. lift

Item no.3: Excavation in soft rock without blasting including boulders upto 0.60 m. diameter (0.113 cum.) for canal, seating of embankment, filter drains/catch water drains etc. and placing excavated stuff neatly in dump area or for formation of service road as directed including cost of all machinery, labour, dressing bed and sides to required level and profile etc. with 1 km. lead and 6 m. lift.

Item no 4 Excavation in hard rock of all toughness by blasting including boulders above 0.60 m diameter (0.113 cum.) minimising damage to sides slope of excavation in water prism area by adopting any one or combination of line drilling/pre-spliting/smooth blasting techniques and placing the excavated rock neatly in approved dump area as directed including cost of all machinery, labour, levelling bed etc. with lead upto 15 m and lift 6 m

Item no.5: Providing laying rubble soling below foundation in layers including filling with rubble chips, murum etc. complete as directed

Item no 6. Providing and fixing in position TMT-FE-500 bar reinforcement steel of various diameter for R. C. C. pile, caps, footing foundation, slabs, beams, columns, canopies, staircase, newels, chajjas, lintel, pardies, copings, fins, arches etc as per detailed design, drawing and schedules, Including, bending, hooking the bars, binding with wires or tack welding and supporting as required etc complete as directed

Item no 7. Providing and laying in situ cement concrete of grade M 150 (40 MSA) of trap/granite / gneiss/quartzite graded metal for PCC with or without surface reainforcement/RCC concreting requinng heavy of special type of shuttering for works of gallery, sluice, spillway crest, spillway downstream face, energy dissipating structurs, intake structurs, training walls, piers, abutment etc with cement concrete mixer with shuttering and scaffolding. curing with an initial lead of 1 km. and all lifts etc. completed as directed

Item no.8 Back filling upto ground level behind the ground level behind the canal structures etc. completed (without royalty) with suitable material of approved quality in layers not exceeding 20 cm

. Item no 9 Providing casing embankment using selected impervious material available directly from excavation in layers including cost of materials, machinery, labour, all other operations such as collection

Item no 10. Providing and constructing 230 mm thick dry rubble stone pitching with pin headers at 2 per sqm using stones and stone chips from approved sources including cost of all material, labour,