Pre Monsoon Cleaning of Underground Sewerage line and surface drain at Vivekananda Yuba Bharati Krirangan during the year 2026 27

Removing chokage of H.C.I. or S.W. pipe with split bamboo. (a) Underground.

Cleaning silt of inspection pit.

Constructing Inspection pit to a depth of 1.5 metre (inside), 250 mm thick 1st class brick work (1:4) in all sides over a layer of jhama brick soling and 150 mm thick cement concrete with stone chips (1:3:6) including necessary earth work, fitting and fixing approved type S.W. master trap, constructing masonry invert with cement concrete (1:1.5:3) with stone chips, plastering inside and outside (outside upto 300 mm below G.L.) with 20 mm thick cement plastering (1:4) and neat cement punning, including supplying, fitting and fixing one 560 mm. dia R.C.C. manhole cover of approved make with R.C.C. slab of 100 mm thick with cement concrete (1:1.5:3) with stone chips including necessary reinforcement (upto 1%) and shuttering and necessary corbelling brick work (1:4) so that the R.C.C. cover slab rests 150 mm above adjucent G.L., cement plaster (1:4) 10 mm thick on all external surfaces of the top slab as directed complete in all respect and removal of surplus earth with all costs of labour and materials (excluding the cost of master trap only). (i) 900 mm X 750 mm (inside) chamber including fitting and fixing S.W. master trap of 150 mm dia. of approved make A) With Pakur variety. (SAIL/TATA/RINL)

Supplying, fitting and fixing in position reinforced cement polymer concrete manhole / gully pit cover with matching frame.As per I.S-12592(M.D) : (vi) 5 MT load bearing capacity round manhole cover provided with two lifter hooks fitted with matching frame of size. Cover: 565 mm X 65 mm Frame: 665 mm X 125 mm opening: 470mm Weight: 90 kg (approx)

(viii) 5 MT load bearing capacity gully pit cover with frame and hinge arrangement for opening of size. Cover: 470 mm X 420 mm X 80 mm Frame: 590 mm X 550 mm X 170 mm opening: 380mm x 305mm Weight: 100 kg (approx)