Construction of 1050mm dia manhole circular wall and haunching of pipes
Construction of 1800mm dia manhole circular wall using temporary steel mould. Manually connect short pipes to the manhole centre for haunching of pipes.
After concreting of manhole circular wall and haunching of pipes
T25-150 rebars for 3m manhole cost-in-site wall
Construction of chamber wall to intermediate slab for 1800mm dia manhole
HDPE lining for 15m deep manhole
Completed manhole and reinstatement works