repair and maintenance of intake pump house and corridor road for the year 2020-22 , earthwork in excavation of foundation trenches drains including dressing of sides & ramming of bottoms , lift upto 1 . 5m including getting out the excavated soil and disposal of surplus excavated soil , as directed , in all types of soil including hard soil . , earthwork in excavation over areas , including disposal of excavated earth , lead upto 100 m and lift upto 1 . 5m disposed earth to be levelled and neatly dressed , in all types of soil including hard soil . , making channel in sand/ sandy soil in riverbed in dry or wet condition or within the water flow including removing the sand for directing the flow , as desired . , supplying & filling in plinth & wherever required with locally available sand , watering , ramming complete as per instruction of manager-in-charge . , filling available excavated earth ( excluding rock ) in trenches , plinth sides of foundation etc . in layers not exceeding 20cm in depdth consolidating each deposited layer by ramming and watering lead upto 50m . & lift upto 1 . 50m . , surface dressing of the ground including removing , vegetation & inequalities not exceeding 15cm deep & disposal of rubbish lead upto 50m & lift upto 1 . 5m in all types soil etc . , cleaning grass & removal of the rubbish upto 100m outside the periphery of the area cleaned or firing the rubbish as required by cisf personnel . , cleaning of jungle including uprooting of rank vegetation , grass , brush wood , trees & sappling etc . and removal of rubbish upto a distance of 50m outside of the periphery of the area cleaned , including cutting of trees etc . in road side berms . , uprooting of small trees & roots from the existing bldg . / structures/ walls/ drain/ floor etc . including partial dismantling and mending good the damages with refilling cement concrete 1:3:6 with 10mm & down size chips , plastering 1:4 & finished smooth . ( measurement shall be taken up for concrete & plaster separately for payment ) . , collecting sand from river bed & filling into empty cement bags & duly tied up . ( capacity of the bag should not be less than 1 cft . ) for dumping in river bed for diverting the flow , excluding the cost of empty cement bags . payment shall be made as no of bag basis ) , cleaning of intake chamber in intake pump house which is 16 . 5mtr . below ground level and removal of slush/silt/sand/ other deposition etc . & taking out the same and disposal of the same within a lead of 50mtr . etc . including dewatering the sumps with supply of pump sets & other tools & plants , safety equipment etc . required for the work . , cleaning of open masonry drains & culvert etc . including removal of vegetation , slush soil , garbages , loose stones & earth deposited & disposal of the same within 50 mtr . , cleaning of hume pipe culvert & in the river nandira including removal of chockages ( partly or fully ) complete , as and when required . , removal of slush/ deposits of ash & depositing the same at a distance of 50mt . properly stacked . ( measurement will be taken as per stack measurement ) , cleaning & sweeping of floor including necessary removal of the garbage to the area within a lead of 50mtrs . as per instruction of mic . , cutting of felling trees/ branching of trees & removal of debries to the area within a lead of 50m as per instruction of mic . , providing & laying of pcc 1:2:4 using 20mm & down aggregates at any level , in proportion , cement coarse sand: stone aggregates as mentioned below excluding centring & shuttering , cement etc . , providing & laying of pcc 1:3:6 using 20mm & down aggregates at any level , in proportion , cement coarse sand: stone aggregates as mentioned below excluding centring & shuttering , cement etc . , providing & laying of reinforced cement concrete work 1:1 . 5:3 ( 1 cement : 1 . 5 coarse sand :3 stone aggregate 20mm nominal size ) in raft , footing , base of columns , chajja , roof slab etc . excluding the cost of centering & shuttering , cement & reinforcement steel etc . , transporting from nalcos store & fixing in position iron/ wooden door , windows ventilators , gates etc . complete . ( concrete & plastering shall be paid separately ) , providing and placing in position tor steel reinforcement for rcc work including straightening , cutting , bending to required shape , binding with contractors own binding wires with proper cover blocks , supports , chairs , spacers etc . at all depth and heights including transportation , loading and unloading etc . all complete as per specification and direction of mic . , brickwork using fly ash brick in foundation and plinth for making chambers etc on any floor in cm 1:6 ( 1 cement :6 coarse sand ) complete including curing etc as directed by m-i-c ( cement and fly ash brick will be provided by nalco free of cost at its main store and brick manufacturing unit ) , brickwork using fly ash brick in superstructure in cm 1:6 ( 1 cement :6 coarse sand ) complete including curing etc as directed by m-i-c ( cement and fly ash brick will be provided by nalco free of cost at its main store and brick manufacturing unit ) , providing cement plaster 1:6 ( 12mm thick ) in coarse sand with cement mortar at all elevation including supply of all labour scafolding materials etc . for repair & new works excluding cost of cement complete . , providing cement plaster 1:6 ( 15mm thick ) in coarse sand with cement mortar at all elevation including supply of all labour scafolding materials etc . for repair & new works excluding cost of cement complete . , providing neat cement punning etc . complete for all heights . , providing cement concrete flooring 1:2:4 finished with a floating coat of neat cement punning , rounding of edges & strips , glass strips etc . excluding cost of cement complete for 40 mm thick with 20mm nominal size chips . , providing rr stone masonry in cm 1:6 using hard stone boulder in foundation & plinth superstructures whereever required including scafolding etc . complete excluding cost of cement , including levelling course in c . c 1:6:12 . , flush pointing with 1:3 cement mortar over stone pitching/ brick work , providing coping on top of compound wall with c . c 1:2:4 with 10mm nominal size granite chips , thickness 50mm , with inserting of broken glass pieces etc . complete , excluding cost of cement as per instruction of mic . , 52 mm thick concrete flooring with concrete hardner topping under layer 40mm thick concrete 1:2:4 ( 1 cement :2 coarse sand :4 graded stone 20mm nominal size ) and top layer 12mm thick cement hardner compound consisting of mix 1:2 ( 1 cement hardner mix :2 stone aggregate 6mm nominal size ) by volume hardening compound mixed at 2 lt per 50 kg of cement or as per manufacturer instruction ) by volume including cement slurry rounding of edges & strips etc . , dismantling and disposal of brickwork within 100m lead including stacking and cleaning the area all complete . , dismantling and disposal of plain cement concrete within 100m lead including stacking and cleaning the area all complete . , dismantling and disposal of reinforced cement concrete within 100m lead including stacking and cleaning the area all complete . , extra for cutting of reinforcement bars in rcc works ( payment shall be made on the cross sectional area of rcc wall ) as directed by m-i-c , dismatling of plaster including raking out joints , removing of old