tender for underground drain construction work in village council kakrahia 450 m. - earthworkinexcavationbymechanicalmeans(hydraulicexcavator) / manual means in foundationtrenchesor drains (not exceeding1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.all kinds of soil. 2 providingandlayingin positioncementconcreteofspecifiedgrade excludingthe cost of centeringand shuttering- all workup to plinth level : 1:4:8(1 cement: 4 coarsesand (zone-iii)derivedfrom natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources) 3 constructing brick masonary manhole in cement mortar 1:4(1 cement: 4 coarse sand ) with r.c.c. top slab with 1:1.5:3 mix (1 cement : 1.5 coarse sand (zone-iii) : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix (1 cement : 4 coarse sand (zone-iii) : 8 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thickwithcementmortar1:3(1cement:3coarsesand)finishedwith floatingcoatofneatcementandmakingchannelsincementconcrete 1:2:4(1cement:2coarsesand:4gradedstoneaggregate20mm nominal size) finished with a floating coat of neat cement complete as per standard design :19.7.1 insidesize90x80cmand45cmdeepincludingc.i. cover with frame (light duty) 455x610 mm internal dimensions,totalweightofcoverandframetobenot lessthan38kg(weightofcover23kgandweightof frame 15 kg) :19.7.1.2 with sewer bricks conforming to is : 4885 4 providing andlayingnon-pressure np2class (lightduty)r.c.c. pipeswithcollarsjointedwithstiffmixtureofcementmortarinthe proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete :300 mm dia 5 s/f of sign board at site