Construction of standard RCC cum bricks circular sewers complete in all respects as per drawing design and specifications PCC 1:2:4, RCC M-20, brick work of innner ring in 1:2 cement sand mortar, outer ring in 1:5 cement sand mortar, total inner plaster 12.5 mm thick using 1:2 cement sand mortar with1 mm thick neat cement rendring, steel reinforcement TMT Fe 500, 3mm thick steel form work, complete in all respects by using mechanical mixer and vibrator. Type – I (Sewer for lower sub soil water tables/ dry conditions) 1145mm i/d P.T. sewer