Construction of Comn Trench with CGI Sheet size 810 mm x 2440 mm,CGI sheet 810mm X 2440 mm long 0.63mm thick with galvanized of 375 GSM,Steel Roofing Trough Size 1500x613x180mm made out of 2mm thick hot rolled carbon steel,RH steel section of size 76.2 mm x 38 mm x 3.65mm 2.70m long 5.86Kg with MS base plate of size 250 x 250 x 8 mm duly welded to pipe and including making necessary jointing points,ISMC 75X40MM 1.07 long fixed at Top horizontally 7.14Kg,SH steel section of size 38 mm x 38 mm x 3.25mm, 2.25m long 3.33Kg,SH steel section of size 38 mm x 38 mm x 3.25mm 1.12m long,HDPE sheet having weight 100 gsm,HDPE Sand Bag of size 75 x 40 cm in Sand colour and each bag having weight not less than 60 gms complete,Self Tapping screw 100mm,8mm dia 75mm long J hooks,M S Nut and bolt 12 mm dia 80 mm long 0.142Kg each including 3mm thick wahers 02 Nos per bolts,M S Nut and bolt 12 mm dia 40 mm long 0.142Kg each including 3mm thick wahers 02 Nos per bolts,Manufactured Sand coarse and fine aggregates,Aggregate 20mm S