CNB_DONGARGAON

Item 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 km: lead and 6 m. lift. 15m

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 dressing bed and sides to required level and profile etc with 4 km lead and 6 m. lift. labour,

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 placing excavated stuff neatly in dump area or for formation of service road as directed including cost of all machinery and labour, dressing bed and sides to required level and profile etc with 1-kkm 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 including Cutting, bending hooking, laying in position and tying M S/HYSD/TMT bars for reinforcement of R. C. C. works as per detailed drawing etc completed

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 requiring heavy of special type of shuttering for works of gallery, sluice, spillway crest, spillway down stream face, energy dissipating structurs intake structurs, training walls, piers, abutment etc with batching plants and Transit mixer with shuttering and scaffolding curing etc. completed with an initial lead 50 m. and lift 1.50 m.

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. without disturbing the structeur etc completed.

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 of material, spreading soil in layer of specified thickness, sorting out, breaking clods, levelling. sectioning edges/ sides, watering compacting each layer to density control of not less then 95 percent or as stipulated using vibratory compactor etc., completed with lead upto 1 km for watering and 6m lift.

Item no.10: Providing and constructing 300 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, hand packing /wedging stone chips finishing etc.completed with lead upto 50 m and lifts as directed.