construction of culvert thanam kunhikochi road supply of material , detailed estimate , stone aggregate ( single size ) : 40 mm nominal size , stone aggregate ( single size ) :20 mm nominal size , coarse sand ( zone iii ) , portland cement , hire charges of concrete mixer 0.25 to 0.40 cum with hopper , vibrator ( needle type 40 mm ) , sundries , stone aggregate ( single size ) : 10 mm nominal size , twisted steel / deformed bars , wall form panel 1250x500 mm , 100 mm channel shoulder 2.5 m long , double clip ( bridge clip ) , single clip , m.s. tube 40 mm dia , structural steel such as tees, angles, channels and r.s. joists , red oxide zinc chromate primer , adjustable span eso+si ( 2.35-3.40 ) , adjustable telescopic prop 3 m ( 2.02-3.75m )